docs/course-management-api-integration.md

@@ -1,479 +0,0 @@
-# Course Management API Integration Guide
-
-This document describes the Course Management related APIs used by the admin frontend (`Yimaru-Admin`) and how to integrate them safely.
-
-It is based on:
-- `src/api/courses.api.ts`
-- `src/api/files.api.ts`
-- `src/types/course.types.ts`
-- `src/api/http.ts`
-
----
-
-## 1) Base setup and auth behavior
-
-### Base URL
-- All requests use `VITE_API_BASE_URL` from environment.
-
-### Authentication
-- Access token is sent automatically as `Authorization: Bearer <access_token>`.
-- On `401`, the frontend attempts token refresh via:
-  - `POST /auth/refresh`
-  - payload: `{ access_token, refresh_token, role, member_id }`
-- If refresh fails, auth data is cleared and user is redirected to `/login`.
-
-### Transport notes
-- Axios automatically handles `multipart/form-data` boundaries for file upload.
-- Any network failure without response also redirects to `/login` (current client behavior).
-
----
-
-## 2) Core domain model used by frontend
-
-Current hierarchy used by content management:
-- `Category`
-  - `Sub-category`
-    - `Course`
-      - `Level (CEFR)`
-        - `Module`
-          - `Sub-module`
-            - `Videos`
-            - `Lessons` (question sets with `set_type = QUIZ`)
-            - `Practices` (question sets with `set_type = PRACTICE`)
-
-Important migration note:
-- Some APIs/types are marked as legacy (`Program`, old `Level/Module` flows).
-- Current frontend mostly uses unified hierarchy endpoints under `/course-management/...` plus `/question-sets` and `/questions`.
-
----
-
-## 3) File/media APIs (used by course management)
-
-## 3.1 Upload media
-
-### Endpoint
-- `POST /files/upload`
-
-### Supports
-- `media_type`: `"image" | "audio" | "video"`
-- File upload via multipart (`file`) or URL import via JSON (`source_url`).
-
-### For video uploads
-- Can send optional `title` and `description`.
-
-### Typical response fields used by frontend
-- `data.object_key`
-- `data.url`
-- `data.provider` (`MINIO` or `VIMEO`)
-- `data.vimeo_id`
-- `data.embed_url`
-
-### Frontend wrapper functions
-- `uploadAudioFile(fileOrUrl)`
-- `uploadImageFile(fileOrUrl)`
-- `uploadVideoFile(fileOrUrl, { title?, description? })`
-
-## 3.2 Resolve object key to URL
-
-### Endpoint
-- `GET /files/url?key=<object_key>`
-
-### Use case
-- Resolve media object key when only key is stored.
-
----
-
-## 4) Category and course APIs
-
-## 4.1 Get categories (normalized in frontend)
-
-### Endpoint called
-- `GET /course-management/hierarchy`
-
-### Frontend behavior
-- Client transforms flat hierarchy rows into category list.
-- Duplicated category names are merged client-side by "richest" record.
-
-### Wrapper
-- `getCourseCategories()`
-
-## 4.2 Create category or sub-category
-
-### Category
-- `POST /course-management/categories`
-- body: `{ name }`
-
-### Sub-category
-- `POST /course-management/sub-categories`
-- body: `{ category_id, name }`
-
-### Wrapper
-- `createCourseCategory({ name, parent_id? })`
-  - if `parent_id` exists, creates sub-category; else category.
-
-## 4.3 Delete category/sub-category
-- `DELETE /course-management/categories/:categoryId`
-- `DELETE /course-management/sub-categories/:subCategoryId`
-
-Wrappers:
-- `deleteCourseCategory(categoryId)`
-- `deleteCourseSubCategory(subCategoryId)`
-
-## 4.4 Courses by category
-
-### Endpoint called
-- `GET /course-management/hierarchy`
-
-### Frontend behavior
-- Filters and maps rows to courses client-side.
-- If duplicate category names exist, it includes rows matching requested category name.
-
-Wrapper:
-- `getCoursesByCategory(categoryId)`
-
-## 4.5 Course CRUD
-- `POST /course-management/courses`
-- `PUT /course-management/courses/:courseId`
-- `PUT /course-management/courses/:courseId` (status toggle via `is_active`)
-- `DELETE /course-management/courses/:courseId`
-- `POST /course-management/courses/:courseId/thumbnail`
-
-Wrappers:
-- `createCourse(data)`
-- `updateCourse(courseId, data)`
-- `updateCourseStatus(courseId, isActive)`
-- `deleteCourse(courseId)`
-- `updateCourseThumbnail(courseId, thumbnailUrl)`
-
----
-
-## 5) Course hierarchy (levels/modules/sub-modules)
-
-## 5.1 Get full hierarchy for one course
-
-### Endpoint
-- `GET /course-management/courses/:courseId/hierarchy`
-
-### Wrapper
-- `getSubModulesByCourse(courseId)`
-
-### Frontend behavior
-- Maps hierarchy rows into `sub_courses` shape (compatibility naming).
-- This is the primary source for module/sub-module tree rendering.
-
-## 5.2 Create sub-module flow (composed)
-
-`createSubModule(data)` is a multi-step client workflow:
-1. `POST /course-management/levels`
-2. `POST /course-management/modules`
-3. `POST /course-management/sub-modules`
-
-Use this when creating a new sub-module from minimal info.
-
-## 5.3 Direct level/module/sub-module creation
-- `createModuleInLevel(levelId, title, description, displayOrder?)`
-  - `POST /course-management/modules`
-- `createSubModuleInModule(moduleId, title, description, displayOrder?)`
-  - `POST /course-management/sub-modules`
-
-## 5.4 Update/delete sub-module
-- `PUT /course-management/sub-modules/:subModuleId`
-- `PUT /course-management/sub-modules/:subModuleId` (status payload)
-- `DELETE /course-management/sub-modules/:subModuleId`
-- `POST /course-management/sub-courses/:subModuleId/thumbnail` (compat endpoint)
-
-Wrappers:
-- `updateSubModule(...)`
-- `updateSubModuleStatus(...)`
-- `deleteSubModule(...)`
-- `updateSubModuleThumbnail(...)`
-
----
-
-## 6) Video APIs (sub-module videos)
-
-## 6.1 List videos for sub-module
-- `GET /course-management/sub-modules/:subModuleId/videos`
-- wrapper: `getVideosBySubModule(subModuleId)`
-
-## 6.2 Create video
-
-Two wrapper variants, same endpoint:
-- `POST /course-management/sub-module-videos`
-
-### Minimal variant
-- `createSubCourseVideo({ sub_module_id|sub_course_id, title, description, video_url })`
-
-### Extended variant
-- `createCourseVideo({ sub_module_id|sub_course_id, title, description, video_url, duration, resolution?, visibility?, display_order?, status? })`
-
-## 6.3 Update/delete video
-- `PUT /course-management/sub-module-videos/:videoId`
-- `DELETE /course-management/sub-module-videos/:videoId`
-
-Wrappers:
-- `updateSubCourseVideo(videoId, data)`
-- `deleteSubCourseVideo(videoId)`
-
----
-
-## 7) Practices and lessons
-
-## 7.1 Practices by sub-module
-- `GET /question-sets/by-owner?owner_type=SUB_MODULE&owner_id=:subModuleId`
-- wrapper: `getPracticesBySubModule(subModuleId)`
-
-## 7.2 Create practice (composed)
-
-`createPractice(data)` does:
-1. `POST /question-sets`
-   - `set_type: "PRACTICE"`
-   - `owner_type: "SUB_MODULE"`
-   - `owner_id: sub_module_id`
-2. If step 1 succeeds, links to sub-module practice:
-   - `POST /course-management/sub-module-practices`
-   - includes `question_set_id` and intro metadata
-
-## 7.3 Create lesson (composed)
-
-`createLesson(data)` does:
-1. `POST /question-sets`
-   - `set_type: "QUIZ"`
-   - `owner_type: "SUB_MODULE"`
-2. Link question set as lesson:
-   - `POST /course-management/sub-module-lessons`
-
-## 7.4 Practice update/delete/status
-- `PUT /course-management/practices/:practiceId`
-- `PUT /course-management/practices/:practiceId` (status)
-- `DELETE /course-management/practices/:practiceId`
-
-Wrappers:
-- `updatePractice(...)`
-- `updatePracticeStatus(...)`
-- `deletePractice(...)`
-
----
-
-## 8) Question sets and questions
-
-## 8.1 Question sets
-- `GET /question-sets` with optional query params
-- `GET /question-sets/by-owner`
-- `GET /question-sets/:id`
-- `PUT /question-sets/:id`
-- `DELETE /question-sets/:id`
-- `POST /question-sets`
-
-Wrappers:
-- `getQuestionSets(params?)`
-- `getQuestionSetsByOwner(ownerType, ownerId)`
-- `getQuestionSetById(questionSetId)`
-- `createQuestionSet(data)`
-- `updateQuestionSet(questionSetId, partialData)`
-- `deleteQuestionSet(questionSetId)`
-
-## 8.2 Question list within set
-- `GET /question-sets/:questionSetId/questions`
-- `POST /question-sets/:questionSetId/questions` (add by question id)
-
-Wrappers:
-- `getQuestionSetQuestions(questionSetId)`
-- `addQuestionToSet(questionSetId, { question_id, display_order? })`
-
-## 8.3 Questions CRUD
-- `GET /questions` (filters)
-- `GET /questions/:questionId`
-- `POST /questions`
-- `PUT /questions/:questionId`
-- `DELETE /questions/:questionId`
-
-Wrappers:
-- `getQuestions(params)`
-- `getQuestionById(questionId)`
-- `createQuestion(data)`
-- `updateQuestion(questionId, data)`
-- `deleteQuestion(questionId)`
-
-## 8.4 Practice-question convenience wrappers
-
-`createPracticeQuestion(data)`:
-1. Creates question via `POST /questions`
-2. Adds it to practice set via `POST /question-sets/:practiceId/questions`
-
-`updatePracticeQuestion(questionId, data)`:
-- maps to `PUT /questions/:questionId`
-
-`deletePracticeQuestion(questionId)`:
-- `DELETE /questions/:questionId`
-
-## 8.5 Practice question listing endpoint variants
-- `getPracticeQuestions(practiceId)` -> `GET /question-sets/:practiceId/questions`
-- `getPracticeQuestionsByPractice(practiceId, params)` -> `GET /practices/:practiceId/questions`
-
-Use the second when you need pagination/filtering by question type.
-
----
-
-## 9) Human language specific APIs
-
-## 9.1 Human language hierarchy
-- `getHumanLanguageHierarchy()`
-- Calls `GET /course-management/hierarchy`
-- If backend already returns nested `sub_categories`, uses it directly.
-- If backend returns flat rows, client builds nested structure and enriches each course by:
-  - requesting `/course-management/courses/:courseId/hierarchy`
-  - requesting `/question-sets/by-owner` per sub-module
-  - deriving lessons from question sets where `set_type = "QUIZ"`
-
-This method is heavier than basic endpoints and can issue many requests.
-
-## 9.2 Human language lessons by course+level
-- `GET /course-management/human-language/courses/:courseId/lessons?cefr_level=...`
-- wrapper: `getHumanLanguageLessonsByCourse(courseId, cefrLevel)`
-
-## 9.3 Create human language lesson structure
-
-`createHumanLanguageLesson(data)` is composed:
-1. `POST /course-management/levels`
-2. `POST /course-management/modules`
-3. `POST /course-management/sub-modules`
-
----
-
-## 10) Learning path and assessments
-
-- `GET /course-management/courses/:courseId/learning-path`
-  - wrapper: `getLearningPath(courseId)`
-
-- `GET /question-sets/sub-courses/:subModuleId/entry-assessment`
-  - wrapper: `getSubModuleEntryAssessment(subModuleId)`
-
----
-
-## 11) Unsupported or stubbed features in current frontend API layer
-
-The following wrappers are intentionally stubbed in frontend and return resolved promises (no real backend call):
-- `getSubModulePrerequisites`
-- `addSubModulePrerequisite`
-- `removeSubModulePrerequisite`
-- `reorderCategories`
-- `reorderCourses`
-- `reorderSubModules`
-- `reorderVideos`
-- `reorderPractices`
-
-Implication:
-- UI may appear to support these flows, but persistence is not implemented through backend yet.
-
----
-
-## 12) Legacy endpoints still exposed (backward compatibility)
-
-These are still present in `courses.api.ts` but marked deprecated in types:
-- Programs APIs
-- Old levels APIs
-- Old modules APIs
-- Practices by level/module APIs
-
-Prefer unified hierarchy/sub-module/question-set APIs for new work.
-
----
-
-## 13) Integration patterns and recommendations
-
-## 13.1 Safe creation flows
-- For practice/lesson creation, keep composed behavior:
-  - create question set first
-  - then link to sub-module entity
-- Handle partial failure:
-  - if link step fails after question set creation, frontend should show recoverable error and optionally support manual relink.
-
-## 13.2 Request normalization
-- `getQuestionSetsResponse.data` can be either:
-  - raw array
-  - object with `question_sets`
-- Normalize before rendering.
-
-## 13.3 Question type mapping
-- UI uses `"SHORT"`; backend commonly expects `"SHORT_ANSWER"`.
-- Existing wrappers already map `"SHORT"` to `"SHORT_ANSWER"` on create/update practice question.
-
-## 13.4 Media handling
-- Prefer using `/files/upload` wrappers for all media.
-- For Vimeo-backed responses, frontend typically consumes `embed_url` (and may append hash from page URL where applicable).
-
-## 13.5 Retry behavior
-- Some hierarchy fetches use single retry (`withSingleRetry`) for resiliency against transient auth/network race conditions.
-
----
-
-## 14) Quick endpoint index
-
-### Course management
-- `GET /course-management/hierarchy`
-- `POST /course-management/categories`
-- `POST /course-management/sub-categories`
-- `DELETE /course-management/categories/:id`
-- `DELETE /course-management/sub-categories/:id`
-- `POST /course-management/courses`
-- `PUT /course-management/courses/:id`
-- `DELETE /course-management/courses/:id`
-- `POST /course-management/courses/:id/thumbnail`
-- `GET /course-management/courses/:courseId/hierarchy`
-- `POST /course-management/levels`
-- `POST /course-management/modules`
-- `PUT /course-management/levels/:id`
-- `DELETE /course-management/levels/:id`
-- `PUT /course-management/modules/:id`
-- `DELETE /course-management/modules/:id`
-- `POST /course-management/sub-modules`
-- `PUT /course-management/sub-modules/:id`
-- `DELETE /course-management/sub-modules/:id`
-- `GET /course-management/sub-modules/:subModuleId/videos`
-- `POST /course-management/sub-module-videos`
-- `PUT /course-management/sub-module-videos/:id`
-- `DELETE /course-management/sub-module-videos/:id`
-- `POST /course-management/sub-module-practices`
-- `POST /course-management/sub-module-lessons`
-- `GET /course-management/courses/:courseId/learning-path`
-- `GET /course-management/human-language/courses/:courseId/lessons`
-
-### Question sets and questions
-- `GET /question-sets`
-- `GET /question-sets/by-owner`
-- `GET /question-sets/:id`
-- `POST /question-sets`
-- `PUT /question-sets/:id`
-- `DELETE /question-sets/:id`
-- `GET /question-sets/:id/questions`
-- `POST /question-sets/:id/questions`
-- `GET /practices/:practiceId/questions`
-- `GET /questions`
-- `GET /questions/:id`
-- `POST /questions`
-- `PUT /questions/:id`
-- `DELETE /questions/:id`
-- `POST /questions/audio-answer`
-
-### File/media
-- `POST /files/upload`
-- `GET /files/url`
-- `GET /vimeo/sample`
-- `POST /vimeo/uploads/pull`
-
----
-
-## 15) Suggested frontend service contract shape
-
-For any new frontend module, follow this contract:
-- **Input DTOs**: UI-friendly types (can include UI aliases like `SHORT`)
-- **Mapper layer**: convert UI DTOs to backend DTOs
-- **Transport layer**: pure API calls
-- **Normalizer layer**: normalize polymorphic responses (`array` vs `object`)
-- **Error policy**:
-  - show user-actionable toast
-  - preserve enough context to retry failed composed steps
-
-This keeps integration robust even with mixed legacy/unified backend surfaces.
-

package-lock.json

@@ -23,7 +23,6 @@
         "lucide-react": "^0.561.0",
         "react": "^19.2.0",
         "react-dom": "^19.2.0",
-        "react-is": "^19.2.5",
         "react-router-dom": "^7.10.1",
         "recharts": "^3.6.0",
         "sonner": "^2.0.7",
@@ -5316,10 +5315,11 @@
       }
     },
     "node_modules/react-is": {
-      "version": "19.2.5",
+      "version": "19.2.3",
-      "resolved": "https://registry.npmjs.org/react-is/-/react-is-19.2.5.tgz",
+      "resolved": "https://registry.npmjs.org/react-is/-/react-is-19.2.3.tgz",
-      "integrity": "sha512-Dn0t8IQhCmeIT3wu+Apm1/YVsJXsGWi6k4sPdnBIdqMVtHtv0IGi6dcpNpNkNac0zB2uUAqNX3MHzN8c+z2rwQ==",
+      "integrity": "sha512-qJNJfu81ByyabuG7hPFEbXqNcWSU3+eVus+KJs+0ncpGfMyYdvSmxiJxbWR65lYi1I+/0HBcliO029gc4F+PnA==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/react-redux": {
       "version": "9.2.0",

package.json

@@ -25,7 +25,6 @@
     "lucide-react": "^0.561.0",
     "react": "^19.2.0",
     "react-dom": "^19.2.0",
-    "react-is": "^19.2.5",
     "react-router-dom": "^7.10.1",
     "recharts": "^3.6.0",
     "sonner": "^2.0.7",

src/api/courses.api.ts

@@ -44,49 +44,18 @@ import type {
   GetQuestionsResponse,
   CreateVimeoVideoRequest,
   CreateCourseCategoryRequest,
-  GetCategorySubCategoriesResponse,
-  GetSubCategoryCoursesResponse,
   GetSubCoursePrerequisitesResponse,
   AddSubCoursePrerequisiteRequest,
   GetLearningPathResponse,
   GetHumanLanguageLessonsResponse,
   GetHumanLanguageHierarchyResponse,
-  GetCourseHierarchyResponse,
   CreateHumanLanguageLessonRequest,
-  GetSubModuleLessonsResponse,
-  GetSubModuleLessonDetailResponse,
-  UpdateSubModuleLessonRequest,
-  UpdateSubModuleLessonResponse,
-  GetCourseLevelsForCourseResponse,
-  GetSubModulesByModuleResponse,
-  SubCourse,
   GetSubCourseEntryAssessmentResponse,
   ReorderItem,
   GetRatingsResponse,
   GetRatingsParams,
   GetVimeoSampleResponse,
   CreateCourseVideoRequest,
-  GetLearningProgramsResponse,
-  UpdateLearningProgramRequest,
-  CreateLearningProgramRequest,
-  CreateLearningProgramResponse,
-  GetProgramCoursesResponse,
-  GetTopLevelCourseModulesResponse,
-  UpdateTopLevelCourseRequest,
-  UpdateTopLevelCourseModuleRequest,
-  CreateTopLevelCourseModuleRequest,
-  CreateTopLevelCourseModuleResponse,
-  CreateProgramCourseRequest,
-  CreateProgramCourseResponse,
-  GetTopLevelModuleLessonsResponse,
-  GetPracticesByParentContextResponse,
-  CreateParentLinkedPracticeRequest,
-  CreateParentLinkedPracticeResponse,
-  UpdateParentLinkedPracticeRequest,
-  UpdateParentLinkedPracticeResponse,
-  UpdateTopLevelModuleLessonRequest,
-  CreateTopLevelModuleLessonRequest,
-  CreateTopLevelModuleLessonResponse,
 } from "../types/course.types"
 
 type UnifiedHierarchyRow = {
@@ -141,35 +110,6 @@ export const createCourseCategory = (data: CreateCourseCategoryRequest) =>
     ? http.post("/course-management/sub-categories", { category_id: data.parent_id, name: data.name })
     : http.post("/course-management/categories", { name: data.name })
 
-export const deleteCourseCategory = (categoryId: number) =>
-  http.delete(`/course-management/categories/${categoryId}`)
-
-export const getSubCategoriesByCategoryId = (categoryId: number) =>
-  http.get<GetCategorySubCategoriesResponse>(`/course-management/categories/${categoryId}/sub-categories`)
-
-export const getCoursesBySubCategoryId = (subCategoryId: number) =>
-  http.get<GetSubCategoryCoursesResponse>(`/course-management/sub-categories/${subCategoryId}/courses`)
-
-export const createSubCategory = (payload: {
-  category_id: number
-  name: string
-  description?: string | null
-  display_order?: number
-}) => http.post("/course-management/sub-categories", payload)
-
-export const deleteCourseSubCategory = (subCategoryId: number) =>
-  http.delete(`/course-management/sub-categories/${subCategoryId}`)
-
-export const updateSubCategory = (
-  subCategoryId: number,
-  payload: Partial<{
-    name: string
-    description: string | null
-    is_active: boolean
-    display_order: number
-  }>,
-) => http.patch(`/course-management/sub-categories/${subCategoryId}`, payload)
-
 export const getCoursesByCategory = (categoryId: number) =>
   http.get("/course-management/hierarchy").then((res) => {
     const rows: UnifiedHierarchyRow[] = res.data?.data ?? []
@@ -208,13 +148,9 @@ export const updateCourse = (courseId: number, data: UpdateCourseRequest) =>
   http.put(`/course-management/courses/${courseId}`, data)
 
 // Sub-Module APIs (Unified Hierarchy)
-export const getCourseHierarchyByCourseId = (courseId: number) =>
-  http.get<GetCourseHierarchyResponse>(`/course-management/courses/${courseId}/hierarchy`)
-
 export const getSubModulesByCourse = (courseId: number) =>
   http.get(`/course-management/courses/${courseId}/hierarchy`).then((res) => {
-    const raw = res.data?.data
+    const rows: CourseHierarchyRow[] = res.data?.data ?? []
-    const rows: CourseHierarchyRow[] = Array.isArray(raw) ? raw : []
     const subModuleMap = new Map<number, { id: number; course_id: number; module_id?: number; title: string; description: string; level: string; cefr_level?: string; thumbnail: string; display_order: number; sub_level?: string; is_active: boolean }>()
     rows.forEach((r, idx) => {
       if (!r.sub_module_id) return
@@ -289,27 +225,6 @@ export const deleteSubModule = (subModuleId: number) =>
 export const getVideosBySubModule = (subModuleId: number) =>
   http.get<GetSubCourseVideosResponse>(`/course-management/sub-modules/${subModuleId}/videos`)
 
-export const getLessonsBySubModule = (subModuleId: number, options?: { includeInactive?: boolean }) =>
-  http.get<GetSubModuleLessonsResponse>(`/course-management/sub-modules/${subModuleId}/lessons`, {
-    params: { include_inactive: options?.includeInactive ?? true },
-  })
-
-export const getSubModuleLessonById = (
-  lessonId: number,
-  options?: { cacheBust?: boolean },
-) =>
-  http.get<GetSubModuleLessonDetailResponse>(`/course-management/sub-module-lessons/${lessonId}`, {
-    params: options?.cacheBust ? { _t: Date.now() } : undefined,
-  })
-
-export const updateSubModuleLesson = (lessonId: number, data: UpdateSubModuleLessonRequest) =>
-  http.put<UpdateSubModuleLessonResponse>(`/course-management/sub-module-lessons/${lessonId}`, data)
-
-export const softDeleteSubModuleLesson = (lessonId: number) =>
-  http.put<UpdateSubModuleLessonResponse>(`/course-management/sub-module-lessons/${lessonId}`, {
-    is_active: false,
-  })
-
 export const createSubCourseVideo = (data: CreateSubCourseVideoRequest) =>
   http.post("/course-management/sub-module-videos", {
     sub_module_id: data.sub_module_id ?? data.sub_course_id,
@@ -430,126 +345,6 @@ export const updatePracticeQuestion = (questionId: number, data: UpdatePracticeQ
 export const deletePracticeQuestion = (questionId: number) =>
   http.delete(`/questions/${questionId}`)
 
-/** Top-level learning programs (Learn English cards, etc.) — GET /programs */
-export const getLearningPrograms = (params?: { limit?: number; offset?: number }) =>
-  http.get<GetLearningProgramsResponse>("/programs", { params })
-
-export const createLearningProgram = (data: CreateLearningProgramRequest) =>
-  http.post<CreateLearningProgramResponse>("/programs", data)
-
-export const getProgramCourses = (
-  programId: number,
-  params?: { limit?: number; offset?: number },
-) => http.get<GetProgramCoursesResponse>(`/programs/${programId}/courses`, { params })
-
-export const createProgramCourse = (
-  programId: number,
-  data: CreateProgramCourseRequest,
-) => http.post<CreateProgramCourseResponse>(`/programs/${programId}/courses`, data)
-
-/** Top-level course resource (Learn English track) — PUT /courses/:id */
-export const updateTopLevelCourse = (courseId: number, data: UpdateTopLevelCourseRequest) =>
-  http.put(`/courses/${courseId}`, data)
-
-export const deleteTopLevelCourse = (courseId: number) =>
-  http.delete(`/courses/${courseId}`)
-
-export const getTopLevelCourseModules = (
-  courseId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetTopLevelCourseModulesResponse>(`/courses/${courseId}/modules`, {
-    params,
-  })
-
-/** Learn English top-level module — POST /courses/:courseId/modules */
-export const createTopLevelCourseModule = (
-  courseId: number,
-  data: CreateTopLevelCourseModuleRequest,
-) =>
-  http.post<CreateTopLevelCourseModuleResponse>(
-    `/courses/${courseId}/modules`,
-    data,
-  )
-
-/** Learn English top-level module — PUT /modules/:id */
-export const updateTopLevelCourseModule = (
-  moduleId: number,
-  data: UpdateTopLevelCourseModuleRequest,
-) => http.put(`/modules/${moduleId}`, data)
-
-/** Learn English top-level module — DELETE /modules/:id */
-export const deleteTopLevelCourseModule = (moduleId: number) =>
-  http.delete(`/modules/${moduleId}`)
-
-/** Learn English top-level module lessons — GET /modules/:moduleId/lessons */
-export const getModuleLessons = (
-  moduleId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetTopLevelModuleLessonsResponse>(`/modules/${moduleId}/lessons`, {
-    params,
-  })
-
-/** Learn English top-level module lesson — POST /modules/:moduleId/lessons */
-export const createModuleLesson = (
-  moduleId: number,
-  data: CreateTopLevelModuleLessonRequest,
-) =>
-  http.post<CreateTopLevelModuleLessonResponse>(`/modules/${moduleId}/lessons`, data)
-
-/** Learn English top-level module lesson — PUT /lessons/:id */
-export const updateTopLevelModuleLesson = (
-  lessonId: number,
-  data: UpdateTopLevelModuleLessonRequest,
-) => http.put(`/lessons/${lessonId}`, data)
-
-/** Learn English top-level module lesson — DELETE /lessons/:id */
-export const deleteTopLevelModuleLesson = (lessonId: number) =>
-  http.delete(`/lessons/${lessonId}`)
-
-/** GET /courses/:courseId/practices — practices linked to a top-level course (at most one in normal use). */
-export const getPracticesByParentCourse = (
-  courseId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetPracticesByParentContextResponse>(`/courses/${courseId}/practices`, { params })
-
-/** GET /modules/:moduleId/practices */
-export const getPracticesByParentModule = (
-  moduleId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetPracticesByParentContextResponse>(`/modules/${moduleId}/practices`, { params })
-
-/** GET /lessons/:lessonId/practices */
-export const getPracticesByParentLesson = (
-  lessonId: number,
-  params?: { limit?: number; offset?: number },
-) =>
-  http.get<GetPracticesByParentContextResponse>(`/lessons/${lessonId}/practices`, { params })
-
-/** POST /practices — create a practice (story + question set) for course / module / lesson. */
-export const createParentLinkedPractice = (data: CreateParentLinkedPracticeRequest) =>
-  http.post<CreateParentLinkedPracticeResponse>("/practices", data)
-
-/** PUT /practices/:id */
-export const updateParentLinkedPractice = (
-  practiceId: number,
-  data: UpdateParentLinkedPracticeRequest,
-) => http.put<UpdateParentLinkedPracticeResponse>(`/practices/${practiceId}`, data)
-
-/** DELETE /practices/:id */
-export const deleteParentLinkedPractice = (practiceId: number) =>
-  http.delete<{ message: string; success: boolean; status_code: number; metadata: unknown }>(
-    `/practices/${practiceId}`,
-  )
-
-export const updateLearningProgram = (programId: number, data: UpdateLearningProgramRequest) =>
-  http.put(`/programs/${programId}`, data)
-
-export const deleteLearningProgram = (programId: number) => http.delete(`/programs/${programId}`)
-
 // ============================================
 // Legacy APIs (deprecated - using SubCourse hierarchy now)
 // Keeping for backward compatibility
@@ -588,74 +383,6 @@ export const deleteLevel = (levelId: number) =>
 export const getModulesByLevel = (levelId: number) =>
   http.get<GetModulesResponse>(`/course-management/levels/${levelId}/modules`)
 
-export const getCourseLevelsForCourse = (courseId: number) =>
-  http.get<GetCourseLevelsForCourseResponse>(`/course-management/courses/${courseId}/levels`)
-
-export const getSubModulesByModuleId = (moduleId: number) =>
-  http.get<GetSubModulesByModuleResponse>(`/course-management/modules/${moduleId}/sub-modules`)
-
-/**
- * Finds a sub-module under a course by walking levels → modules → sub-modules APIs.
- */
-export async function resolveSubModuleForCourse(
-  courseId: number,
-  subModuleId: number,
-): Promise<SubCourse | null> {
-  try {
-    const levelsRes = await getCourseLevelsForCourse(courseId)
-    const levels = Array.isArray(levelsRes.data?.data?.levels) ? levelsRes.data.data.levels : []
-    const sortedLevels = [...levels].sort((a, b) => {
-      const o = (a.display_order ?? 0) - (b.display_order ?? 0)
-      if (o !== 0) return o
-      return String(a.cefr_level ?? "").localeCompare(String(b.cefr_level ?? ""))
-    })
-
-    const modulesNested = await Promise.all(
-      sortedLevels.map(async (level) => {
-        const modsRes = await getModulesByLevel(level.id)
-        const rawMods = modsRes.data?.data?.modules
-        const modules = Array.isArray(rawMods) ? rawMods : []
-        const sortedMods = [...modules].sort((a, b) => (a.display_order ?? 0) - (b.display_order ?? 0))
-        return sortedMods.map((module) => ({ level, module }))
-      }),
-    )
-    const modulePairs = modulesNested.flat()
-
-    const bundles = await Promise.all(
-      modulePairs.map(async ({ level, module }) => {
-        const subsRes = await getSubModulesByModuleId(module.id)
-        const rawSubs = subsRes.data?.data?.sub_modules
-        const subs = Array.isArray(rawSubs) ? rawSubs : []
-        const sortedSubs = [...subs].sort((a, b) => (a.display_order ?? 0) - (b.display_order ?? 0))
-        return { level, module, subs: sortedSubs }
-      }),
-    )
-
-    for (const { level, module, subs } of bundles) {
-      const found = subs.find((s) => s.id === subModuleId)
-      if (found) {
-        return {
-          id: found.id,
-          course_id: courseId,
-          level_id: level.id,
-          module_id: module.id,
-          title: found.title,
-          description: found.description ?? "",
-          level: level.cefr_level,
-          cefr_level: level.cefr_level,
-          thumbnail: found.thumbnail ?? "",
-          display_order: found.display_order,
-          sub_level: level.cefr_level,
-          is_active: found.is_active,
-        }
-      }
-    }
-  } catch (e) {
-    console.error("resolveSubModuleForCourse failed:", e)
-  }
-  return null
-}
-
 export const createModule = (data: CreateModuleRequest) =>
   http.post("/course-management/modules", data)
 

src/api/files.api.ts

@@ -25,16 +25,6 @@ export interface ResolveFileUrlResponse {
   success?: boolean
 }
 
-export interface RefreshFileUrlResponse {
-  message: string
-  data?: {
-    object_key?: string
-    url?: string
-    expires_in?: number
-  }
-  success?: boolean
-}
-
 export interface UploadMediaOptions {
   title?: string
   description?: string
@@ -96,8 +86,3 @@ export const resolveFileUrl = (key: string) =>
     params: { key },
   })
 
-export const refreshFileUrl = (reference: string) =>
-  http.post<RefreshFileUrlResponse>("/files/refresh-url", {
-    reference,
-  })
-

src/api/http.ts

@@ -12,7 +12,6 @@ let failedQueue: Array<{
   resolve: (token: string) => void;
   reject: (error: Error) => void;
 }> = [];
-const TOKEN_REFRESH_BUFFER_SECONDS = 120;
 
 const processQueue = (error: Error | null, token: string | null = null) => {
   failedQueue.forEach((prom) => {
@@ -33,68 +32,23 @@ const clearAuthAndRedirect = () => {
   window.location.href = "/login";
 };
 
-const decodeJwtPayload = (token: string): Record<string, unknown> | null => {
-  try {
-    const payloadPart = token.split(".")[1];
-    if (!payloadPart) return null;
-    const normalized = payloadPart.replace(/-/g, "+").replace(/_/g, "/");
-    const padded = normalized.padEnd(Math.ceil(normalized.length / 4) * 4, "=");
-    const json = atob(padded);
-    return JSON.parse(json) as Record<string, unknown>;
-  } catch {
-    return null;
-  }
-};
-
-const isAccessTokenExpiringSoon = (token: string) => {
-  const payload = decodeJwtPayload(token);
-  const exp = Number(payload?.exp);
-  if (!Number.isFinite(exp)) return true;
-  const nowSeconds = Math.floor(Date.now() / 1000);
-  return exp - nowSeconds <= TOKEN_REFRESH_BUFFER_SECONDS;
-};
-
-const isAuthEndpointRequest = (url?: string) => {
-  if (!url) return false;
-  return (
-    url.includes("/team/login") ||
-    url.includes("/team/google-login") ||
-    url.includes("/team/refresh")
-  );
-};
-
-const ABSOLUTE_URL_REGEX = /^https?:\/\//i;
-
-const safeOrigin = (url?: string): string | null => {
-  if (!url) return null;
-  try {
-    return new URL(url).origin;
-  } catch {
-    return null;
-  }
-};
-
-const API_BASE_ORIGIN = safeOrigin(import.meta.env.VITE_API_BASE_URL);
-
-const shouldAttachApiAuth = (url?: string): boolean => {
-  if (!url) return true;
-  if (!ABSOLUTE_URL_REGEX.test(url)) return true;
-  const requestOrigin = safeOrigin(url);
-  if (!requestOrigin || !API_BASE_ORIGIN) return false;
-  return requestOrigin === API_BASE_ORIGIN;
-};
-
 const refreshAccessToken = async (): Promise<string> => {
+  const accessToken = localStorage.getItem("access_token");
   const refreshToken = localStorage.getItem("refresh_token");
+  const role = localStorage.getItem("role");
+  const memberId = localStorage.getItem("member_id");
 
-  if (!refreshToken) {
+  if (!refreshToken || !memberId) {
     throw new Error("No refresh token available");
   }
 
   const response = await axios.post(
-    `${import.meta.env.VITE_API_BASE_URL}/team/refresh`,
+    `${import.meta.env.VITE_API_BASE_URL}/auth/refresh`,
     {
+      access_token: accessToken,
       refresh_token: refreshToken,
+      role: role || "admin",
+      member_id: Number(memberId),
     }
   );
 
@@ -111,47 +65,9 @@ const refreshAccessToken = async (): Promise<string> => {
   return newAccessToken;
 };
 
-const getValidAccessToken = async (forceRefresh = false): Promise<string> => {
-  const currentToken = localStorage.getItem("access_token");
-  if (!forceRefresh && currentToken && !isAccessTokenExpiringSoon(currentToken)) {
-    return currentToken;
-  }
-
-  if (isRefreshing) {
-    return new Promise((resolve, reject) => {
-      failedQueue.push({ resolve, reject });
-    });
-  }
-
-  isRefreshing = true;
-  try {
-    const newToken = await refreshAccessToken();
-    processQueue(null, newToken);
-    return newToken;
-  } catch (refreshError) {
-    processQueue(refreshError as Error, null);
-    clearAuthAndRedirect();
-    throw refreshError;
-  } finally {
-    isRefreshing = false;
-  }
-};
-
 // Attach access token to every request
-http.interceptors.request.use(async (config) => {
+http.interceptors.request.use((config) => {
-  if (!shouldAttachApiAuth(config.url)) {
+  const token = localStorage.getItem("access_token");
-    return config;
-  }
-
-  if (isAuthEndpointRequest(config.url)) {
-    return config;
-  }
-
-  let token = localStorage.getItem("access_token");
-  if (token && isAccessTokenExpiringSoon(token)) {
-    token = await getValidAccessToken();
-  }
-
   if (token) {
     config.headers.Authorization = `Bearer ${token}`;
   }
@@ -164,25 +80,37 @@ http.interceptors.response.use(
   async (error: AxiosError) => {
     const originalRequest = error.config as InternalAxiosRequestConfig & { _retry?: boolean };
 
-    if (
+    if (error.response?.status === 401 && !originalRequest._retry) {
-      error.response?.status === 401 &&
+      if (isRefreshing) {
-      !originalRequest._retry &&
+        return new Promise((resolve, reject) => {
-      shouldAttachApiAuth(originalRequest.url) &&
+          failedQueue.push({ resolve, reject });
-      !isAuthEndpointRequest(originalRequest.url)
+        })
-    ) {
+          .then((token) => {
+            originalRequest.headers.Authorization = `Bearer ${token}`;
+            return http(originalRequest);
+          })
+          .catch((err) => Promise.reject(err));
+      }
+
       originalRequest._retry = true;
+      isRefreshing = true;
 
       try {
-        const newToken = await getValidAccessToken(true);
+        const newToken = await refreshAccessToken();
+        processQueue(null, newToken);
         originalRequest.headers.Authorization = `Bearer ${newToken}`;
         return http(originalRequest);
       } catch (refreshError) {
+        processQueue(refreshError as Error, null);
+        clearAuthAndRedirect();
         return Promise.reject(refreshError);
+      } finally {
+        isRefreshing = false;
       }
     }
 
     // Backend is down (network error, timeout, connection refused)
-    if (!error.response && shouldAttachApiAuth(originalRequest.url)) {
+    if (!error.response) {
       clearAuthAndRedirect();
       return Promise.reject(error);
     }

src/api/rbac.api.ts

@@ -5,7 +5,6 @@ import type {
   GetRolesParams,
   CreateRoleRequest,
   CreateRoleResponse,
-  DeleteRoleResponse,
   SetRolePermissionsRequest,
   GetPermissionsResponse,
 } from "../types/rbac.types"
@@ -27,6 +26,3 @@ export const setRolePermissions = (roleId: number, data: SetRolePermissionsReque
 
 export const getAllPermissions = () =>
   http.get<GetPermissionsResponse>("/rbac/permissions")
-
-export const deleteRole = (roleId: number) =>
-  http.delete<DeleteRoleResponse>(`/rbac/roles/${roleId}`)

src/app/AppRoutes.tsx

@@ -1,67 +1,52 @@
-import { Navigate, Route, Routes } from "react-router-dom";
+import { Navigate, Route, Routes } from "react-router-dom"
-import { AppLayout } from "../layouts/AppLayout";
+import { AppLayout } from "../layouts/AppLayout"
-import { DashboardPage } from "../pages/DashboardPage";
+import { DashboardPage } from "../pages/DashboardPage"
-import { AnalyticsPage } from "../pages/analytics/AnalyticsPage";
+import { AnalyticsPage } from "../pages/analytics/AnalyticsPage"
-import { ContentManagementLayout } from "../pages/content-management/ContentManagementLayout";
+import { ContentManagementLayout } from "../pages/content-management/ContentManagementLayout"
-import { AllCoursesPage } from "../pages/content-management/AllCoursesPage";
+import { CourseCategoryPage } from "../pages/content-management/CourseCategoryPage"
-import { CourseFlowBuilderPage } from "../pages/content-management/CourseFlowBuilderPage";
+import { AllCoursesPage } from "../pages/content-management/AllCoursesPage"
-import { ContentOverviewPage } from "../pages/content-management/ContentOverviewPage";
+import { CourseFlowBuilderPage } from "../pages/content-management/CourseFlowBuilderPage"
-import { CoursesPage } from "../pages/content-management/CoursesPage";
+import { ContentOverviewPage } from "../pages/content-management/ContentOverviewPage"
-import { PracticeQuestionsPage } from "../pages/content-management/PracticeQuestionsPage";
+import { CoursesPage } from "../pages/content-management/CoursesPage"
-import { AddNewPracticePage } from "../pages/content-management/AddNewPracticePage";
+import { PracticeQuestionsPage } from "../pages/content-management/PracticeQuestionsPage"
-import { SubModulesPage } from "../pages/content-management/SubCoursesPage";
+import { AddNewPracticePage } from "../pages/content-management/AddNewPracticePage"
-import { SubModuleContentPage } from "../pages/content-management/SubCourseContentPage";
+import { SubModulesPage } from "../pages/content-management/SubCoursesPage"
-import { SpeakingPage } from "../pages/content-management/SpeakingPage";
+import { SubModuleContentPage } from "../pages/content-management/SubCourseContentPage"
-import { AddVideoPage } from "../pages/content-management/AddVideoPage";
+import { SpeakingPage } from "../pages/content-management/SpeakingPage"
-import { AddPracticePage } from "../pages/content-management/AddPracticePage";
+import { AddVideoPage } from "../pages/content-management/AddVideoPage"
-import { NewContentPage } from "../pages/content-management/NewContentPage";
+import { AddPracticePage } from "../pages/content-management/AddPracticePage"
-import { LearnEnglishPage } from "../pages/content-management/LearnEnglishPage";
+import { NotFoundPage } from "../pages/NotFoundPage"
-import { ProgramCoursesPage } from "../pages/content-management/ProgramCoursesPage";
+import { NotificationsPage } from "../pages/notifications/NotificationsPage"
-import { CourseDetailPage } from "../pages/content-management/CourseDetailPage";
+import { CreateNotificationPage } from "../pages/notifications/CreateNotificationPage"
-import { ModuleDetailPage } from "../pages/content-management/ModuleDetailPage";
+import { UserDetailPage } from "../pages/user-management/UserDetailPage"
-import { AddVideoFlow } from "../pages/content-management/AddVideoFlow";
+import { UserManagementLayout } from "../pages/user-management/UserManagementLayout"
-import { AddPracticeFlow } from "../pages/content-management/AddPracticeFlow";
+import { UsersListPage } from "../pages/user-management/UsersListPage"
-import { CourseModuleDetailPage } from "../pages/content-management/CourseModuleDetailPage";
+import { UserManagementDashboard } from "../pages/user-management/UserManagementDashboard"
-import { AttachPracticeFlow } from "../pages/content-management/AttachPracticeFlow";
+import { UserGroupsPage } from "../pages/user-management/UserGroupsPage"
-import { AttachProgramPracticeFlow } from "../pages/content-management/AttachProgramPracticeFlow";
+import { DeletionRequestsPage } from "../pages/user-management/DeletionRequestsPage"
-import { ProgramTypeSelectionPage } from "../pages/content-management/ProgramTypeSelectionPage";
+import { RoleManagementLayout } from "../pages/role-management/RoleManagementLayout"
-import { ProgramDetailPage } from "../pages/content-management/ProgramDetailPage";
+import { RolesListPage } from "../pages/role-management/RolesListPage"
-import { CourseManagementPage } from "../pages/content-management/CourseManagementPage";
+import { AddRolePage } from "../pages/role-management/AddRolePage"
-import { UnitManagementPage } from "../pages/content-management/UnitManagementPage";
+import { PracticeDetailsPage } from "../pages/content-management/PracticeDetailsPage"
-import { QuestionTypeLibraryPage } from "../pages/content-management/QuestionTypeLibraryPage";
+import { PracticeMembersPage } from "../pages/content-management/PracticeMembersPage"
-import { CreateQuestionTypeFlow } from "../pages/content-management/CreateQuestionTypeFlow";
+import { QuestionsPage } from "../pages/content-management/QuestionsPage"
-import { NotFoundPage } from "../pages/NotFoundPage";
+import { AddQuestionPage } from "../pages/content-management/AddQuestionPage"
-import { NotificationsPage } from "../pages/notifications/NotificationsPage";
+import { HumanLanguagePage } from "../pages/content-management/HumanLanguagePage"
-import { CreateNotificationPage } from "../pages/notifications/CreateNotificationPage";
+import { HumanLanguageSubModulePage } from "../pages/content-management/HumanLanguageSubModulePage"
-import { UserDetailPage } from "../pages/user-management/UserDetailPage";
+import { UserLogPage } from "../pages/user-log/UserLogPage"
-import { UserManagementLayout } from "../pages/user-management/UserManagementLayout";
+import { IssuesPage } from "../pages/issues/IssuesPage"
-import { UsersListPage } from "../pages/user-management/UsersListPage";
+import { ProfilePage } from "../pages/ProfilePage"
-import { UserManagementDashboard } from "../pages/user-management/UserManagementDashboard";
+import { SettingsPage } from "../pages/SettingsPage"
-import { UserGroupsPage } from "../pages/user-management/UserGroupsPage";
+import { TeamManagementPage } from "../pages/team/TeamManagementPage"
-import { DeletionRequestsPage } from "../pages/user-management/DeletionRequestsPage";
+import { AddTeamMemberPage } from "../pages/team/AddTeamMemberPage"
-import { RoleManagementLayout } from "../pages/role-management/RoleManagementLayout";
+import { TeamMemberDetailPage } from "../pages/team/TeamMemberDetailPage"
-import { RolesListPage } from "../pages/role-management/RolesListPage";
+import { LoginPage } from "../pages/auth/LoginPage"
-import { AddRolePage } from "../pages/role-management/AddRolePage";
+import { ForgotPasswordPage } from "../pages/auth/ForgotPasswordPage"
-import { PracticeDetailsPage } from "../pages/content-management/PracticeDetailsPage";
+import { VerificationPage } from "../pages/auth/VerificationPage"
-import { PracticeMembersPage } from "../pages/content-management/PracticeMembersPage";
+import { AboutPage } from "../pages/AboutPage"
-import { QuestionsPage } from "../pages/content-management/QuestionsPage";
+import { TermsPage } from "../pages/TermsPage"
-import { AddQuestionPage } from "../pages/content-management/AddQuestionPage";
+import { PrivacyPage } from "../pages/PrivacyPage"
-import { HumanLanguageHierarchyPage } from "../pages/content-management/HumanLanguageHierarchyPage";
+import { AccountDeletionPage } from "../pages/AccountDeletionPage"
-import { HumanLanguageSubModulePage } from "../pages/content-management/HumanLanguageSubModulePage";
-import { UserLogPage } from "../pages/user-log/UserLogPage";
-import { IssuesPage } from "../pages/issues/IssuesPage";
-import { ProfilePage } from "../pages/ProfilePage";
-import { SettingsPage } from "../pages/SettingsPage";
-import { TeamManagementPage } from "../pages/team/TeamManagementPage";
-import { AddTeamMemberPage } from "../pages/team/AddTeamMemberPage";
-import { TeamMemberDetailPage } from "../pages/team/TeamMemberDetailPage";
-import { LoginPage } from "../pages/auth/LoginPage";
-import { ForgotPasswordPage } from "../pages/auth/ForgotPasswordPage";
-import { VerificationPage } from "../pages/auth/VerificationPage";
-import { AboutPage } from "../pages/AboutPage";
-import { TermsPage } from "../pages/TermsPage";
-import { PrivacyPage } from "../pages/PrivacyPage";
-import { AccountDeletionPage } from "../pages/AccountDeletionPage";
 
 export function AppRoutes() {
   return (
@@ -90,10 +75,10 @@ export function AppRoutes() {
         </Route>
 
         <Route path="/content" element={<ContentManagementLayout />}>
-          <Route index element={<Navigate to="practices" replace />} />
+          <Route index element={<CourseCategoryPage />} />
           <Route path="courses" element={<AllCoursesPage />} />
           <Route path="flows" element={<CourseFlowBuilderPage />} />
-          <Route path="human-language" element={<HumanLanguageHierarchyPage />} />
+          <Route path="human-language" element={<HumanLanguagePage />} />
           <Route
             path="human-language/:categoryId/:courseId/sub-module/:subModuleId/add-practice"
             element={<AddNewPracticePage />}
@@ -106,52 +91,19 @@ export function AppRoutes() {
             path="human-language/:categoryId/:courseId/sub-module/:subModuleId"
             element={<HumanLanguageSubModulePage />}
           />
-          <Route
+          <Route path="category/:categoryId" element={<ContentOverviewPage />} />
-            path="category/:categoryId"
+          <Route path="category/:categoryId/courses" element={<CoursesPage />} />
-            element={<ContentOverviewPage />}
-          />
-          <Route
-            path="category/:categoryId/courses"
-            element={<CoursesPage />}
-          />
           {/* Course → Sub-module → Lesson/Practice */}
-          <Route
+          <Route path="category/:categoryId/courses/:courseId/sub-modules" element={<SubModulesPage />} />
-            path="category/:categoryId/courses/:courseId/sub-modules"
+          <Route path="category/:categoryId/courses/:courseId/sub-modules/:subModuleId" element={<SubModuleContentPage />} />
-            element={<SubModulesPage />}
+          <Route path="category/:categoryId/courses/:courseId/sub-modules/:subModuleId/add-practice" element={<AddNewPracticePage />} />
-          />
+          <Route path="category/:categoryId/courses/:courseId/sub-modules/:subModuleId/practices/:practiceId/questions" element={<PracticeQuestionsPage />} />
-          <Route
-            path="category/:categoryId/courses/:courseId/sub-modules/:subModuleId"
-            element={<SubModuleContentPage />}
-          />
-          <Route
-            path="category/:categoryId/courses/:courseId/sub-modules/:subModuleId/add-practice"
-            element={<AddNewPracticePage />}
-          />
-          <Route
-            path="category/:categoryId/courses/:courseId/sub-modules/:subModuleId/practices/:practiceId/questions"
-            element={<PracticeQuestionsPage />}
-          />
           {/* Legacy aliases */}
-          <Route
+          <Route path="category/:categoryId/courses/:courseId/sub-courses" element={<SubModulesPage />} />
-            path="category/:categoryId/courses/:courseId/sub-courses"
+          <Route path="category/:categoryId/courses/:courseId/sub-courses/:subModuleId" element={<SubModuleContentPage />} />
-            element={<SubModulesPage />}
+          <Route path="category/:categoryId/courses/:courseId/sub-courses/:subModuleId/add-practice" element={<AddNewPracticePage />} />
-          />
+          <Route path="category/:categoryId/courses/:courseId/sub-courses/:subModuleId/practices/:practiceId/questions" element={<PracticeQuestionsPage />} />
-          <Route
+          <Route path="category/:categoryId/courses/add-video" element={<AddVideoPage />} />
-            path="category/:categoryId/courses/:courseId/sub-courses/:subModuleId"
-            element={<SubModuleContentPage />}
-          />
-          <Route
-            path="category/:categoryId/courses/:courseId/sub-courses/:subModuleId/add-practice"
-            element={<AddNewPracticePage />}
-          />
-          <Route
-            path="category/:categoryId/courses/:courseId/sub-courses/:subModuleId/practices/:practiceId/questions"
-            element={<PracticeQuestionsPage />}
-          />
-          <Route
-            path="category/:categoryId/courses/add-video"
-            element={<AddVideoPage />}
-          />
           <Route path="speaking" element={<SpeakingPage />} />
           <Route path="speaking/add-practice" element={<AddPracticePage />} />
           <Route path="practices" element={<PracticeDetailsPage />} />
@@ -161,73 +113,8 @@ export function AppRoutes() {
           <Route path="questions/edit/:id" element={<AddQuestionPage />} />
         </Route>
 
-        <Route path="/new-content" element={<NewContentPage />} />
-        <Route
-          path="/new-content/courses"
-          element={<ProgramTypeSelectionPage />}
-        />
-        <Route
-          path="/new-content/question-types"
-          element={<QuestionTypeLibraryPage />}
-        />
-        <Route
-          path="/new-content/question-types/create"
-          element={<CreateQuestionTypeFlow />}
-        />
-        <Route
-          path="/new-content/courses/:programType"
-          element={<ProgramDetailPage />}
-        />
-        <Route
-          path="/new-content/courses/:programType/attach-practice"
-          element={<AttachProgramPracticeFlow />}
-        />
-        <Route
-          path="/new-content/courses/:programType/:courseId/unit/:unitId/module/:moduleId/attach-practice"
-          element={<AttachPracticeFlow />}
-        />
-        <Route
-          path="/new-content/courses/:programType/:courseId"
-          element={<CourseManagementPage />}
-        />
-        <Route
-          path="/new-content/courses/:programType/:courseId/:unitId"
-          element={<UnitManagementPage />}
-        />
-        <Route
-          path="/new-content/courses/:programType/:courseId/:unitId/:moduleId"
-          element={<CourseModuleDetailPage />}
-        />
-        <Route
-          path="/new-content/learn-english"
-          element={<LearnEnglishPage />}
-        />
-        <Route
-          path="/new-content/learn-english/:level/courses"
-          element={<ProgramCoursesPage />}
-        />
-        <Route
-          path="/new-content/learn-english/:level/courses/:courseId"
-          element={<CourseDetailPage />}
-        />
-        <Route
-          path="/new-content/learn-english/:level/courses/:courseId/modules/:moduleId"
-          element={<ModuleDetailPage />}
-        />
-        <Route
-          path="/new-content/learn-english/:level/courses/:courseId/modules/:moduleId/add-video"
-          element={<AddVideoFlow />}
-        />
-        <Route
-          path="/new-content/learn-english/:level/courses/add-practice"
-          element={<AddPracticeFlow />}
-        />
-
         <Route path="/notifications" element={<NotificationsPage />} />
-        <Route
+        <Route path="/notifications/create" element={<CreateNotificationPage />} />
-          path="/notifications/create"
-          element={<CreateNotificationPage />}
-        />
         <Route path="/user-log" element={<UserLogPage />} />
         <Route path="/issues" element={<IssuesPage />} />
         <Route path="/analytics" element={<AnalyticsPage />} />
@@ -241,5 +128,7 @@ export function AppRoutes() {
 
       <Route path="*" element={<NotFoundPage />} />
     </Routes>
-  );
+  )
 }
+
+

src/components/sidebar/Sidebar.tsx

@@ -13,65 +13,57 @@ import {
   Users,
   Users2,
   X,
-} from "lucide-react";
+} from "lucide-react"
-import { type ComponentType, useEffect, useState } from "react";
+import { type ComponentType, useEffect, useState } from "react"
-import { NavLink } from "react-router-dom";
+import { NavLink } from "react-router-dom"
-import { cn } from "../../lib/utils";
+import { cn } from "../../lib/utils"
-import { BrandLogo } from "../brand/BrandLogo";
+import { BrandLogo } from "../brand/BrandLogo"
-import { getUnreadCount } from "../../api/notifications.api";
+import { getUnreadCount } from "../../api/notifications.api"
 
 type NavItem = {
-  label: string;
+  label: string
-  to: string;
+  to: string
-  icon: ComponentType<{ className?: string }>;
+  icon: ComponentType<{ className?: string }>
-};
+}
 
 const navItems: NavItem[] = [
   { label: "Dashboard", to: "/dashboard", icon: LayoutDashboard },
   { label: "User Management", to: "/users", icon: Users },
   { label: "Role Management", to: "/roles", icon: Shield },
   { label: "Content Management", to: "/content", icon: BookOpen },
-  { label: "New Content", to: "/new-content", icon: BookOpen },
-
   { label: "Notifications", to: "/notifications", icon: Bell },
   { label: "User Log", to: "/user-log", icon: ClipboardList },
   { label: "Issue Reports", to: "/issues", icon: CircleAlert },
   { label: "Analytics", to: "/analytics", icon: BarChart3 },
   { label: "Team Management", to: "/team", icon: Users2 },
   { label: "Profile", to: "/profile", icon: UserCircle2 },
-];
+]
 
 type SidebarProps = {
-  isOpen: boolean;
+  isOpen: boolean
-  isCollapsed: boolean;
+  isCollapsed: boolean
-  onToggleCollapse: () => void;
+  onToggleCollapse: () => void
-  onClose: () => void;
+  onClose: () => void
-};
+}
 
-export function Sidebar({
+export function Sidebar({ isOpen, isCollapsed, onToggleCollapse, onClose }: SidebarProps) {
-  isOpen,
+  const [unreadCount, setUnreadCount] = useState(0)
-  isCollapsed,
-  onToggleCollapse,
-  onClose,
-}: SidebarProps) {
-  const [unreadCount, setUnreadCount] = useState(0);
 
   useEffect(() => {
     const fetchUnread = async () => {
       try {
-        const res = await getUnreadCount();
+        const res = await getUnreadCount()
-        setUnreadCount(res.data.unread);
+        setUnreadCount(res.data.unread)
       } catch {
         // silently fail
       }
-    };
+    }
 
-    fetchUnread();
+    fetchUnread()
 
-    window.addEventListener("notifications-updated", fetchUnread);
+    window.addEventListener("notifications-updated", fetchUnread)
-    return () =>
+    return () => window.removeEventListener("notifications-updated", fetchUnread)
-      window.removeEventListener("notifications-updated", fetchUnread);
+  }, [])
-  }, []);
 
   return (
     <>
@@ -94,12 +86,7 @@ export function Sidebar({
           isOpen ? "translate-x-0" : "-translate-x-full",
         )}
       >
-        <div
+        <div className={cn("flex items-center justify-between px-2", isCollapsed && "justify-center")}>
-          className={cn(
-            "flex items-center justify-between px-2",
-            isCollapsed && "justify-center",
-          )}
-        >
           {isCollapsed ? (
             <span className="h-10 w-10 overflow-hidden">
               <BrandLogo className="h-10 w-auto max-w-none" />
@@ -116,11 +103,7 @@ export function Sidebar({
             onClick={onToggleCollapse}
             aria-label={isCollapsed ? "Expand sidebar" : "Collapse sidebar"}
           >
-            {isCollapsed ? (
+            {isCollapsed ? <ChevronRight className="h-5 w-5" /> : <ChevronLeft className="h-5 w-5" />}
-              <ChevronRight className="h-5 w-5" />
-            ) : (
-              <ChevronLeft className="h-5 w-5" />
-            )}
           </button>
           <button
             type="button"
@@ -134,7 +117,7 @@ export function Sidebar({
 
         <nav className="mt-6 flex-1 space-y-1 overflow-y-auto">
           {navItems.map((item) => {
-            const Icon = item.icon;
+            const Icon = item.icon
             return (
               <NavLink
                 key={item.to}
@@ -160,36 +143,25 @@ export function Sidebar({
                       )}
                     >
                       <Icon className="h-4 w-4" />
-                      {isCollapsed &&
+                      {isCollapsed && item.to === "/notifications" && unreadCount > 0 && (
-                        item.to === "/notifications" &&
+                        <span className="absolute -right-1 -top-1 h-2.5 w-2.5 rounded-full bg-destructive" />
-                        unreadCount > 0 && (
-                          <span className="absolute -right-1 -top-1 h-2.5 w-2.5 rounded-full bg-destructive" />
-                        )}
-                    </span>
-                    {!isCollapsed && (
-                      <span className="truncate">{item.label}</span>
-                    )}
-                    {!isCollapsed &&
-                      item.to === "/notifications" &&
-                      unreadCount > 0 && (
-                        <span className="ml-auto flex h-5 min-w-[20px] items-center justify-center rounded-full bg-destructive px-1.5 text-[10px] font-bold text-white">
-                          {unreadCount > 99 ? "99+" : unreadCount}
-                        </span>
                       )}
-                    {!isCollapsed &&
+                    </span>
-                    item.to !== "/notifications" &&
+                    {!isCollapsed && <span className="truncate">{item.label}</span>}
-                    isActive ? (
+                    {!isCollapsed && item.to === "/notifications" && unreadCount > 0 && (
+                      <span className="ml-auto flex h-5 min-w-[20px] items-center justify-center rounded-full bg-destructive px-1.5 text-[10px] font-bold text-white">
+                        {unreadCount > 99 ? "99+" : unreadCount}
+                      </span>
+                    )}
+                    {!isCollapsed && item.to !== "/notifications" && isActive ? (
                       <span className="ml-auto h-6 w-1 rounded-full bg-brand-500/80" />
-                    ) : !isCollapsed &&
+                    ) : !isCollapsed && item.to === "/notifications" && unreadCount === 0 && isActive ? (
-                      item.to === "/notifications" &&
-                      unreadCount === 0 &&
-                      isActive ? (
                       <span className="ml-auto h-6 w-1 rounded-full bg-brand-500/80" />
                     ) : null}
                   </>
                 )}
               </NavLink>
-            );
+            )
           })}
         </nav>
 
@@ -197,8 +169,8 @@ export function Sidebar({
           <button
             type="button"
             onClick={() => {
-              localStorage.clear();
+              localStorage.clear()
-              window.location.href = "/login";
+              window.location.href = "/login"
             }}
             className={cn(
               "flex w-full items-center gap-2 rounded-lg px-3 py-2 text-sm font-medium text-grayScale-500 hover:bg-grayScale-100 hover:text-brand-600",
@@ -212,5 +184,5 @@ export function Sidebar({
         </div>
       </aside>
     </>
-  );
+  )
 }

src/components/topbar/Topbar.tsx

@@ -45,7 +45,7 @@ export function Topbar({ onSidebarToggle }: TopbarProps) {
   }
 
   return (
-    <header className="sticky top-0 z-40 flex h-16 items-center justify-between gap-3 border-b bg-grayScale-50/85 px-4 backdrop-blur lg:justify-end lg:px-6">
+    <header className="sticky top-0 z-10 flex h-16 items-center justify-between gap-3 border-b bg-grayScale-50/85 px-4 backdrop-blur lg:justify-end lg:px-6">
       {/* Sidebar toggle */}
       <button
         type="button"

src/components/ui/dialog.tsx

@@ -1,12 +1,12 @@
-import * as React from "react";
+import * as React from "react"
-import * as DialogPrimitive from "@radix-ui/react-dialog";
+import * as DialogPrimitive from "@radix-ui/react-dialog"
-import { X } from "lucide-react";
+import { X } from "lucide-react"
-import { cn } from "../../lib/utils";
+import { cn } from "../../lib/utils"
 
-const Dialog = DialogPrimitive.Root;
+const Dialog = DialogPrimitive.Root
-const DialogTrigger = DialogPrimitive.Trigger;
+const DialogTrigger = DialogPrimitive.Trigger
-const DialogPortal = DialogPrimitive.Portal;
+const DialogPortal = DialogPrimitive.Portal
-const DialogClose = DialogPrimitive.Close;
+const DialogClose = DialogPrimitive.Close
 
 const DialogOverlay = React.forwardRef<
   React.ElementRef<typeof DialogPrimitive.Overlay>,
@@ -20,8 +20,8 @@ const DialogOverlay = React.forwardRef<
     )}
     {...props}
   />
-));
+))
-DialogOverlay.displayName = DialogPrimitive.Overlay.displayName;
+DialogOverlay.displayName = DialogPrimitive.Overlay.displayName
 
 const DialogContent = React.forwardRef<
   React.ElementRef<typeof DialogPrimitive.Content>,
@@ -38,42 +38,27 @@ const DialogContent = React.forwardRef<
       {...props}
     >
       {children}
-      <DialogPrimitive.Close className="absolute right-6 top-10 rounded-sm opacity-60 ring-offset-background transition-opacity hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-accent data-[state=open]:text-muted-foreground">
+      <DialogPrimitive.Close className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background transition-opacity hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-accent data-[state=open]:text-muted-foreground">
-        <X className="h-6 w-6" />
+        <X className="h-4 w-4" />
         <span className="sr-only">Close</span>
       </DialogPrimitive.Close>
     </DialogPrimitive.Content>
   </DialogPortal>
-));
+))
-DialogContent.displayName = DialogPrimitive.Content.displayName;
+DialogContent.displayName = DialogPrimitive.Content.displayName
 
-const DialogHeader = ({
+const DialogHeader = ({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) => (
-  className,
+  <div className={cn("flex flex-col space-y-1.5 text-center sm:text-left", className)} {...props} />
-  ...props
+)
-}: React.HTMLAttributes<HTMLDivElement>) => (
+DialogHeader.displayName = "DialogHeader"
+
+const DialogFooter = ({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) => (
   <div
-    className={cn(
+    className={cn("flex flex-col-reverse sm:flex-row sm:justify-end sm:space-x-2", className)}
-      "flex flex-col space-y-1.5 text-center sm:text-left",
-      className,
-    )}
     {...props}
   />
-);
+)
-DialogHeader.displayName = "DialogHeader";
+DialogFooter.displayName = "DialogFooter"
-
-const DialogFooter = ({
-  className,
-  ...props
-}: React.HTMLAttributes<HTMLDivElement>) => (
-  <div
-    className={cn(
-      "flex flex-col-reverse sm:flex-row sm:justify-end sm:space-x-2",
-      className,
-    )}
-    {...props}
-  />
-);
-DialogFooter.displayName = "DialogFooter";
 
 const DialogTitle = React.forwardRef<
   React.ElementRef<typeof DialogPrimitive.Title>,
@@ -81,14 +66,11 @@ const DialogTitle = React.forwardRef<
 >(({ className, ...props }, ref) => (
   <DialogPrimitive.Title
     ref={ref}
-    className={cn(
+    className={cn("text-lg font-semibold leading-none tracking-tight", className)}
-      "text-lg font-semibold leading-none tracking-tight",
-      className,
-    )}
     {...props}
   />
-));
+))
-DialogTitle.displayName = DialogPrimitive.Title.displayName;
+DialogTitle.displayName = DialogPrimitive.Title.displayName
 
 const DialogDescription = React.forwardRef<
   React.ElementRef<typeof DialogPrimitive.Description>,
@@ -99,8 +81,8 @@ const DialogDescription = React.forwardRef<
     className={cn("text-sm text-muted-foreground", className)}
     {...props}
   />
-));
+))
-DialogDescription.displayName = DialogPrimitive.Description.displayName;
+DialogDescription.displayName = DialogPrimitive.Description.displayName
 
 export {
   Dialog,
@@ -113,4 +95,5 @@ export {
   DialogFooter,
   DialogTitle,
   DialogDescription,
-};
+}
+

src/components/ui/input.tsx

@@ -1,21 +1,21 @@
-import * as React from "react";
+import * as React from "react"
-import { cn } from "../../lib/utils";
+import { cn } from "../../lib/utils"
 
 export interface InputProps extends React.InputHTMLAttributes<HTMLInputElement> {}
 
-export const Input = React.forwardRef<HTMLInputElement, InputProps>(
+export const Input = React.forwardRef<HTMLInputElement, InputProps>(({ className, type, ...props }, ref) => {
-  ({ className, type, ...props }, ref) => {
+  return (
-    return (
+    <input
-      <input
+      type={type}
-        type={type}
+      className={cn(
-        className={cn(
+        "flex h-10 w-full rounded-lg border bg-white px-3 py-2 text-sm ring-offset-background file:border-0 file:bg-transparent file:text-sm file:font-medium placeholder:text-grayScale-400 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50",
-          "flex h-10 w-full rounded-[6px] border bg-white px-3 py-2 text-sm ring-offset-background file:border-0 file:bg-transparent file:text-sm file:font-medium placeholder:text-grayScale-200 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50",
+        className,
-          className,
+      )}
-        )}
+      ref={ref}
-        ref={ref}
+      {...props}
-        {...props}
+    />
-      />
+  )
-    );
+})
-  },
+Input.displayName = "Input"
-);
+
-Input.displayName = "Input";
+

src/components/ui/select.tsx

@@ -1,6 +1,6 @@
-import * as React from "react";
+import * as React from "react"
-import { ChevronDown } from "lucide-react";
+import { ChevronDown } from "lucide-react"
-import { cn } from "../../lib/utils";
+import { cn } from "../../lib/utils"
 
 export interface SelectProps extends React.SelectHTMLAttributes<HTMLSelectElement> {}
 
@@ -18,9 +18,10 @@ export const Select = React.forwardRef<HTMLSelectElement, SelectProps>(
         >
           {children}
         </select>
-        <ChevronDown className="pointer-events-none absolute right-2 top-1/2 h-4 w-4 -translate-y-1/2 text-grayScale-600" />
+        <ChevronDown className="pointer-events-none absolute right-2 top-1/2 h-4 w-4 -translate-y-1/2 text-grayScale-400" />
       </div>
-    );
+    )
   },
-);
+)
-Select.displayName = "Select";
+Select.displayName = "Select"
+

src/components/ui/stepper.tsx

@@ -1,55 +1,61 @@
-import { cn } from "../../lib/utils";
+import * as React from "react"
+import { Check } from "lucide-react"
+import { cn } from "../../lib/utils"
 
 export interface StepperProps {
-  steps: string[];
+  steps: string[]
-  currentStep: number;
+  currentStep: number
-  className?: string;
+  className?: string
 }
 
 export function Stepper({ steps, currentStep, className }: StepperProps) {
   return (
-    <div className={cn("flex w-full items-start justify-between", className)}>
+    <div className={cn("flex w-full items-center", className)}>
       {steps.map((step, index) => {
-        const stepNumber = index + 1;
+        const stepNumber = index + 1
-        const isCurrent = stepNumber === currentStep;
+        const isCompleted = stepNumber < currentStep
+        const isCurrent = stepNumber === currentStep
 
         return (
-          <div
+          <React.Fragment key={step}>
-            key={step}
+            <div className="flex items-center">
-            className="flex-1 relative flex flex-col items-center group"
+              <div className="flex flex-col items-center">
-          >
+                <div
-            {/* Connector Line - floats between circles with gap on both sides */}
+                  className={cn(
+                    "grid h-10 w-10 place-items-center rounded-full border-2 text-sm font-semibold transition-colors",
+                    isCompleted && "border-brand-500 bg-brand-500 text-white",
+                    // Active step should be visually prominent.
+                    isCurrent && "border-brand-500 bg-brand-500 text-white",
+                    !isCompleted && !isCurrent && "border-grayScale-300 bg-white text-grayScale-400",
+                  )}
+                >
+                  {isCompleted ? <Check className="h-5 w-5" /> : stepNumber}
+                </div>
+                <span
+                  className={cn(
+                    "mt-2 text-xs font-medium",
+                    isCurrent && "text-brand-600",
+                    !isCurrent && "text-grayScale-500",
+                  )}
+                >
+                  {step}
+                </span>
+              </div>
+            </div>
             {index < steps.length - 1 && (
               <div
-                className="absolute top-4 h-[1.5px] bg-grayScale-200 z-0"
+                className={cn(
-                style={{ left: "calc(50% + 50px)", right: "calc(-50% + 50px)" }}
+                  // Keep the connector visually continuous with the step circles.
+                  "mx-2 h-0.5 flex-1",
+                  // Color the track up to the current step.
+                  isCompleted || isCurrent ? "bg-brand-500" : "bg-grayScale-200",
+                )}
               />
             )}
-
+          </React.Fragment>
-            {/* Circle */}
+        )
-            <div
-              className={cn(
-                "relative z-10 grid h-8 w-8 place-items-center rounded-full border-2 text-sm font-bold transition-all duration-300 mb-3",
-                isCurrent
-                  ? "border-brand-500 bg-brand-500 text-white shadow-md scale-110"
-                  : "border-grayScale-100 bg-white text-grayScale-400 font-medium",
-              )}
-            >
-              {stepNumber}
-            </div>
-
-            {/* Label */}
-            <span
-              className={cn(
-                "relative z-10 text-[12px] font-bold transition-colors duration-300",
-                isCurrent ? "text-brand-500" : "text-grayScale-400 font-medium",
-              )}
-            >
-              {step}
-            </span>
-          </div>
-        );
       })}
     </div>
-  );
+  )
 }
+

src/layouts/AppLayout.tsx

@@ -1,18 +1,16 @@
-import { useState, useCallback, useEffect, useMemo, useRef } from "react"
+import { useState, useCallback } from "react"
-import { Navigate, Outlet, useLocation } from "react-router-dom"
+import { Navigate, Outlet } from "react-router-dom"
 import { Sidebar } from "../components/sidebar/Sidebar"
 import { Topbar } from "../components/topbar/Topbar"
 
 export function AppLayout() {
   const [sidebarOpen, setSidebarOpen] = useState(false)
   const [sidebarCollapsed, setSidebarCollapsed] = useState(false)
-  const mainRef = useRef<HTMLElement | null>(null)
-  const previousRouteKeyRef = useRef<string>("")
-  const location = useLocation()
-  const scrollStoragePrefix = "app:scroll:"
-  const routeKey = useMemo(() => `${location.pathname}${location.search}`, [location.pathname, location.search])
 
   const token = localStorage.getItem("access_token")
+  if (!token) {
+    return <Navigate to="/login" replace />
+  }
 
   const handleSidebarToggle = useCallback(() => {
     setSidebarOpen((prev) => !prev)
@@ -22,43 +20,6 @@ export function AppLayout() {
     setSidebarOpen(false)
   }, [])
 
-  useEffect(() => {
-    const container = mainRef.current
-    if (!container) return
-
-    const saveScroll = (key: string) => {
-      sessionStorage.setItem(`${scrollStoragePrefix}${key}`, String(container.scrollTop || 0))
-    }
-
-    const previousKey = previousRouteKeyRef.current
-    if (previousKey && previousKey !== routeKey) {
-      saveScroll(previousKey)
-    }
-    previousRouteKeyRef.current = routeKey
-
-    const restoreRaw = sessionStorage.getItem(`${scrollStoragePrefix}${routeKey}`)
-    const restoreTop = restoreRaw ? Number(restoreRaw) : 0
-    const top = Number.isFinite(restoreTop) && restoreTop > 0 ? restoreTop : 0
-    requestAnimationFrame(() => {
-      container.scrollTo({ top, behavior: "auto" })
-    })
-
-    const onScroll = () => saveScroll(routeKey)
-    const onBeforeUnload = () => saveScroll(routeKey)
-    container.addEventListener("scroll", onScroll, { passive: true })
-    window.addEventListener("beforeunload", onBeforeUnload)
-
-    return () => {
-      saveScroll(routeKey)
-      container.removeEventListener("scroll", onScroll)
-      window.removeEventListener("beforeunload", onBeforeUnload)
-    }
-  }, [routeKey])
-
-  if (!token) {
-    return <Navigate to="/login" replace />
-  }
-
   return (
     <div className="flex min-h-screen bg-grayScale-100">
       <Sidebar
@@ -73,7 +34,7 @@ export function AppLayout() {
         }`}
       >
         <Topbar onSidebarToggle={handleSidebarToggle} />
-        <main ref={mainRef} className="min-w-0 flex-1 overflow-x-hidden overflow-y-auto px-3 pb-8 pt-4 sm:px-4 lg:px-6">
+        <main className="min-w-0 flex-1 overflow-x-hidden overflow-y-auto px-3 pb-8 pt-4 sm:px-4 lg:px-6">
           <Outlet />
         </main>
         <footer className="border-t bg-grayScale-50 px-4 py-3 lg:px-6">

src/lib/sessionRole.ts

@@ -1,13 +0,0 @@
-const ADMIN_OR_SUPER: ReadonlySet<string> = new Set([
-  "admin",
-  "super_admin",
-]);
-
-/**
- * True when the stored session role is admin or super_admin (login stores `role` in localStorage).
- */
-export function isAdminOrSuperAdminRole(): boolean {
-  const raw = localStorage.getItem("role");
-  if (!raw) return false;
-  return ADMIN_OR_SUPER.has(raw.trim().toLowerCase());
-}

src/lib/videoPreview.ts

@@ -1,124 +0,0 @@
-/**
- * Resolves a user-facing video URL into something we can preview (iframe or <video>).
- */
-
-export function toVimeoEmbedUrl(rawUrl: string): string | null {
-  try {
-    const parsed = new URL(rawUrl.trim());
-    const host = parsed.hostname.toLowerCase();
-    if (!host.includes("vimeo.com")) return null;
-    if (host.includes("player.vimeo.com") && parsed.pathname.includes("/video/")) {
-      return parsed.toString();
-    }
-    const segments = parsed.pathname.split("/").filter(Boolean);
-    const videoId = segments.find((segment) => /^\d+$/.test(segment));
-    if (!videoId) return null;
-    const hash = parsed.searchParams.get("h");
-    return hash
-      ? `https://player.vimeo.com/video/${videoId}?h=${encodeURIComponent(hash)}`
-      : `https://player.vimeo.com/video/${videoId}`;
-  } catch {
-    return null;
-  }
-}
-
-export function toYoutubeEmbedUrl(rawUrl: string): string | null {
-  try {
-    const u = new URL(rawUrl.trim());
-    const host = u.hostname.replace(/^www\./, "").toLowerCase();
-    if (host === "youtu.be") {
-      const id = u.pathname.split("/").filter(Boolean)[0];
-      if (id) return `https://www.youtube.com/embed/${id}`;
-    }
-    if (host === "youtube.com" || host === "m.youtube.com") {
-      const v = u.searchParams.get("v");
-      if (v) return `https://www.youtube.com/embed/${v}`;
-      let m = u.pathname.match(/\/embed\/([^/]+)/);
-      if (m) return `https://www.youtube.com/embed/${m[1]}`;
-      m = u.pathname.match(/\/shorts\/([^/]+)/);
-      if (m) return `https://www.youtube.com/embed/${m[1]}`;
-    }
-  } catch {
-    return null;
-  }
-  return null;
-}
-
-export function isDirectVideoFileUrl(url: string): boolean {
-  const clean = url.split("?")[0].toLowerCase();
-  return /^https?:\/\//.test(url.trim()) && /\.(mp4|webm|ogg|mov|m4v)$/.test(clean);
-}
-
-export type VideoPreviewKind =
-  | { kind: "iframe"; src: string; label: "Vimeo" | "YouTube" }
-  | { kind: "video"; src: string }
-  | { kind: "none" };
-
-export function getVideoPreview(url: string): VideoPreviewKind {
-  const t = url.trim();
-  if (!t) return { kind: "none" };
-  const vimeo = toVimeoEmbedUrl(t);
-  if (vimeo) return { kind: "iframe", src: vimeo, label: "Vimeo" };
-  const yt = toYoutubeEmbedUrl(t);
-  if (yt) return { kind: "iframe", src: yt, label: "YouTube" };
-  if (isDirectVideoFileUrl(t)) return { kind: "video", src: t };
-  return { kind: "none" };
-}
-
-/**
- * First N seconds only — embed “short” preview in admin cards / review, not the full file.
- * @see https://developers.google.com/youtube/player_parameters (end, start)
- */
-export const DEFAULT_PREVIEW_MAX_SECONDS = 60;
-
-export function formatPreviewLength(totalSeconds: number): string {
-  if (totalSeconds < 60) return `${totalSeconds} seconds`;
-  if (totalSeconds % 60 === 0) {
-    const m = totalSeconds / 60;
-    return m === 1 ? "1 minute" : `${m} minutes`;
-  }
-  return `${totalSeconds} seconds`;
-}
-
-/**
- * YouTube: `end` = stop after this many seconds from the start of the video.
- * Vimeo: time range in URL fragment (supported on many vimeo.com player links).
- */
-export function applyShortPreviewToEmbedUrl(
-  embedUrl: string,
-  label: "Vimeo" | "YouTube",
-  maxSeconds: number = DEFAULT_PREVIEW_MAX_SECONDS,
-): string {
-  try {
-    if (label === "YouTube") {
-      const u = new URL(embedUrl);
-      u.searchParams.set("start", "0");
-      u.searchParams.set("end", String(maxSeconds));
-      u.searchParams.set("rel", u.searchParams.get("rel") ?? "0");
-      return u.toString();
-    }
-    if (label === "Vimeo") {
-      const u = new URL(embedUrl);
-      u.searchParams.set("start", "0");
-      u.searchParams.set("end", String(maxSeconds));
-      u.hash = `t=0,${maxSeconds}`;
-      return u.toString();
-    }
-  } catch {
-    // fall through
-  }
-  return embedUrl;
-}
-
-/** Google Drive "view" links are not direct image URLs; use the thumbnail API for preview. */
-export function resolveThumbnailForPreview(
-  url: string | null | undefined,
-): string | null {
-  if (!url?.trim()) return null;
-  const t = url.trim();
-  const m = t.match(/\/file\/d\/([a-zA-Z0-9_-]+)/);
-  if (m) {
-    return `https://drive.google.com/thumbnail?id=${m[1]}&sz=w800`;
-  }
-  return t;
-}

src/pages/auth/LoginPage.tsx

@@ -67,6 +67,9 @@ export function LoginPage() {
   const navigate = useNavigate();
 
   const token = localStorage.getItem("access_token");
+  if (token) {
+    return <Navigate to="/dashboard" replace />;
+  }
 
   const [showPassword, setShowPassword] = useState(false);
   const [email, setEmail] = useState("");
@@ -159,10 +162,6 @@ export function LoginPage() {
     }
   }, [googleReady, handleGoogleCallback]);
 
-  if (token) {
-    return <Navigate to="/dashboard" replace />;
-  }
-
   const handleSubmit = async (e: React.FormEvent) => {
     e.preventDefault();
 

src/pages/content-management/AddNewLessonPage.tsx

@@ -1,650 +0,0 @@
-import { useMemo, useState, type ChangeEvent } from "react"
-import { ArrowLeft, ArrowRight, Check, GripVertical, Plus, Rocket, Trash2, Upload } from "lucide-react"
-import { Link, useLocation, useNavigate, useParams } from "react-router-dom"
-import { toast } from "sonner"
-import { addQuestionToSet, createLesson, createQuestion } from "../../api/courses.api"
-import { uploadVideoFile } from "../../api/files.api"
-import { PracticeQuestionEditorFields } from "../../components/content-management/PracticeQuestionEditorFields"
-import { Button } from "../../components/ui/button"
-import { Card } from "../../components/ui/card"
-import { Input } from "../../components/ui/input"
-import { SpinnerIcon } from "../../components/ui/spinner-icon"
-import type { QuestionOption } from "../../types/course.types"
-
-type Step = 1 | 2 | 3 | 4
-type QuestionType = "MCQ" | "TRUE_FALSE" | "SHORT" | "AUDIO"
-type DifficultyLevel = "EASY" | "MEDIUM" | "HARD"
-type ResultStatus = "success" | "error"
-
-interface MCQOption {
-  text: string
-  isCorrect: boolean
-}
-
-interface Question {
-  id: string
-  questionText: string
-  questionType: QuestionType
-  difficultyLevel: DifficultyLevel
-  points: number
-  tips: string
-  explanation: string
-  options: MCQOption[]
-  voicePrompt: string
-  sampleAnswerVoicePrompt: string
-  audioCorrectAnswerText: string
-  shortAnswers: string[]
-  imageUrl: string
-}
-
-const STEPS = [
-  { number: 1, label: "Context" },
-  { number: 2, label: "Questions" },
-  { number: 3, label: "Review" },
-]
-
-function createEmptyQuestion(id: string): Question {
-  return {
-    id,
-    questionText: "",
-    questionType: "MCQ",
-    difficultyLevel: "EASY",
-    points: 1,
-    tips: "",
-    explanation: "",
-    options: [
-      { text: "", isCorrect: true },
-      { text: "", isCorrect: false },
-      { text: "", isCorrect: false },
-      { text: "", isCorrect: false },
-    ],
-    voicePrompt: "",
-    sampleAnswerVoicePrompt: "",
-    audioCorrectAnswerText: "",
-    shortAnswers: [],
-    imageUrl: "",
-  }
-}
-
-function introVideoUrlFromUploadResponse(data: { url?: string; embed_url?: string } | undefined): string | null {
-  if (!data) return null
-  const pageUrl = data.url?.trim()
-  const embedUrl = data.embed_url?.trim()
-  if (embedUrl) {
-    const hashFromUrl = pageUrl ? pageUrl.split("/").filter(Boolean).at(-1) : undefined
-    return hashFromUrl ? `${embedUrl}?h=${hashFromUrl}` : embedUrl
-  }
-  return pageUrl || null
-}
-
-function toVimeoEmbedUrl(rawUrl: string): string | null {
-  try {
-    const parsed = new URL(rawUrl.trim())
-    const host = parsed.hostname.toLowerCase()
-    if (!host.includes("vimeo.com")) return null
-    if (host.includes("player.vimeo.com") && parsed.pathname.includes("/video/")) return parsed.toString()
-    const segments = parsed.pathname.split("/").filter(Boolean)
-    const videoId = segments.find((segment) => /^\d+$/.test(segment))
-    if (!videoId) return null
-    const hash = parsed.searchParams.get("h")
-    return hash
-      ? `https://player.vimeo.com/video/${videoId}?h=${encodeURIComponent(hash)}`
-      : `https://player.vimeo.com/video/${videoId}`
-  } catch {
-    return null
-  }
-}
-
-function isDirectVideoFile(url: string): boolean {
-  const clean = url.split("?")[0].toLowerCase()
-  return /\.(mp4|webm|ogg|mov|m4v)$/.test(clean)
-}
-
-function questionTypeLabel(type: QuestionType): string {
-  if (type === "TRUE_FALSE") return "True/False"
-  if (type === "SHORT") return "Short Answer"
-  if (type === "AUDIO") return "Audio"
-  return "Multiple Choice"
-}
-
-export function AddNewLessonPage() {
-  const { categoryId, courseId, subModuleId } = useParams()
-  const navigate = useNavigate()
-  const location = useLocation()
-
-  const backTo = useMemo(() => {
-    if (location.pathname.includes("/content/human-language/") && location.pathname.includes("/sub-module/")) {
-      return `/content/human-language/${categoryId}/${courseId}/sub-module/${subModuleId}`
-    }
-    return `/content/category/${categoryId}/courses/${courseId}/sub-modules/${subModuleId}`
-  }, [categoryId, courseId, subModuleId, location.pathname])
-
-  const [currentStep, setCurrentStep] = useState<Step>(1)
-  const [saving, setSaving] = useState(false)
-  const [resultStatus, setResultStatus] = useState<ResultStatus | null>(null)
-  const [resultMessage, setResultMessage] = useState("")
-  const [lastSavedStatus, setLastSavedStatus] = useState<"DRAFT" | "PUBLISHED" | null>(null)
-
-  const [lessonTitle, setLessonTitle] = useState("")
-  const [lessonDescription, setLessonDescription] = useState("")
-  const [introVideoUrl, setIntroVideoUrl] = useState("")
-  const [uploadingIntroVideo, setUploadingIntroVideo] = useState(false)
-  const [questions, setQuestions] = useState<Question[]>([createEmptyQuestion("1")])
-
-  const handleNext = () => setCurrentStep((s) => (s < 3 ? ((s + 1) as Step) : s))
-  const handleBack = () => setCurrentStep((s) => (s > 1 ? ((s - 1) as Step) : s))
-
-  const handleIntroVideoFileChange = async (event: ChangeEvent<HTMLInputElement>) => {
-    const file = event.target.files?.[0]
-    event.target.value = ""
-    if (!file) return
-    setUploadingIntroVideo(true)
-    try {
-      const uploadRes = await uploadVideoFile(file, {
-        title: lessonTitle.trim() || file.name.replace(/\.[^.]+$/, "") || "Lesson intro",
-        description: lessonDescription.trim() || undefined,
-      })
-      const finalUrl = introVideoUrlFromUploadResponse(uploadRes.data?.data)
-      if (!finalUrl) throw new Error("Missing uploaded video url")
-      setIntroVideoUrl(finalUrl)
-      toast.success("Intro video uploaded")
-    } catch (error) {
-      console.error("Failed to upload lesson intro video:", error)
-      toast.error("Failed to upload intro video")
-    } finally {
-      setUploadingIntroVideo(false)
-    }
-  }
-
-  const handleIntroVideoUrlBlur = async () => {
-    const source = introVideoUrl.trim()
-    if (!source || !/^https?:\/\//i.test(source)) return
-    const vimeoEmbed = toVimeoEmbedUrl(source)
-    if (vimeoEmbed) {
-      setIntroVideoUrl(vimeoEmbed)
-      return
-    }
-    if (isDirectVideoFile(source)) {
-      setIntroVideoUrl(source)
-      return
-    }
-
-    // For non-direct URLs, automatically try server-side import via /files/upload.
-    setUploadingIntroVideo(true)
-    try {
-      const uploadRes = await uploadVideoFile(source, {
-        title: lessonTitle.trim() || "Lesson intro",
-        description: lessonDescription.trim() || undefined,
-      })
-      const finalUrl = introVideoUrlFromUploadResponse(uploadRes.data?.data)
-      if (!finalUrl) throw new Error("Missing uploaded video url")
-      setIntroVideoUrl(finalUrl)
-      toast.success("Intro video URL imported")
-    } catch (error) {
-      console.error("Failed to import intro video URL:", error)
-      toast.error("Failed to import intro video URL")
-    } finally {
-      setUploadingIntroVideo(false)
-    }
-  }
-
-  const introVideoPreview = useMemo(() => {
-    const raw = introVideoUrl.trim()
-    if (!raw) return null
-    const vimeoEmbedUrl = toVimeoEmbedUrl(raw)
-    if (vimeoEmbedUrl) return { kind: "vimeo" as const, url: vimeoEmbedUrl }
-    if (isDirectVideoFile(raw)) return { kind: "video" as const, url: raw }
-    return null
-  }, [introVideoUrl])
-
-  const reviewQuestions = useMemo(() => questions, [questions])
-
-  const addQuestion = () => setQuestions((prev) => [...prev, createEmptyQuestion(String(Date.now()))])
-  const removeQuestion = (id: string) => setQuestions((prev) => (prev.length > 1 ? prev.filter((q) => q.id !== id) : prev))
-  const updateQuestion = (id: string, updates: Partial<Question>) =>
-    setQuestions((prev) => prev.map((q) => (q.id === id ? { ...q, ...updates } : q)))
-
-  const saveLesson = async (status: "DRAFT" | "PUBLISHED") => {
-    if (!subModuleId) {
-      toast.error("Missing sub-module id")
-      return
-    }
-    setSaving(true)
-    try {
-      const lessonRes = await createLesson({
-        sub_module_id: Number(subModuleId),
-        title: lessonTitle.trim() || "Untitled Lesson",
-        description: lessonDescription.trim() || undefined,
-        intro_video_url: introVideoUrl.trim() || undefined,
-        status,
-      })
-
-      const questionSetId = lessonRes.data?.data?.id
-      if (questionSetId) {
-        for (let i = 0; i < questions.length; i++) {
-          const q = questions[i]
-          if (!q.questionText.trim()) continue
-          const options: QuestionOption[] =
-            q.questionType === "MCQ"
-              ? q.options.map((opt, idx) => ({
-                  option_order: idx + 1,
-                  option_text: opt.text,
-                  is_correct: opt.isCorrect,
-                }))
-              : []
-
-          const qRes = await createQuestion({
-            question_text: q.questionText,
-            question_type: q.questionType,
-            difficulty_level: q.difficultyLevel,
-            points: q.points,
-            tips: q.tips || undefined,
-            explanation: q.explanation || undefined,
-            status: "PUBLISHED",
-            options: options.length > 0 ? options : undefined,
-            voice_prompt: q.voicePrompt || undefined,
-            sample_answer_voice_prompt: q.sampleAnswerVoicePrompt || undefined,
-            audio_correct_answer_text: q.audioCorrectAnswerText || undefined,
-            image_url: q.imageUrl.trim() || undefined,
-            short_answers: q.shortAnswers.length > 0 ? q.shortAnswers : undefined,
-          })
-          const questionId = qRes.data?.data?.id
-          if (questionId) {
-            await addQuestionToSet(questionSetId, { question_id: questionId, display_order: i + 1 })
-          }
-        }
-      }
-
-      setResultStatus("success")
-      setResultMessage(status === "PUBLISHED" ? "Lesson published successfully." : "Lesson saved as draft.")
-      setLastSavedStatus(status)
-      setCurrentStep(4)
-    } catch (error) {
-      console.error("Failed to save lesson:", error)
-      setResultStatus("error")
-      setResultMessage(error instanceof Error ? error.message : "Failed to save lesson")
-      setLastSavedStatus(null)
-      setCurrentStep(4)
-    } finally {
-      setSaving(false)
-    }
-  }
-
-  return (
-    <div className="mx-auto w-full max-w-7xl px-4 pb-12 sm:px-6 lg:px-8">
-      <div className="space-y-5 sm:space-y-6">
-        {currentStep !== 4 ? (
-          <>
-            <Link
-              to={backTo}
-              className="group inline-flex items-center gap-2 rounded-lg px-3 py-1.5 text-sm font-medium text-grayScale-600 transition-colors hover:bg-brand-50 hover:text-brand-600"
-            >
-              <ArrowLeft className="h-4 w-4 transition-transform group-hover:-translate-x-0.5" />
-              Back to Sub-course
-            </Link>
-            <div className="border-b border-grayScale-100 pb-6 sm:pb-8">
-              <h1 className="text-2xl font-bold tracking-tight text-grayScale-900 sm:text-3xl">Add New Lesson</h1>
-              <p className="mt-2 max-w-3xl text-sm leading-relaxed text-grayScale-500 sm:text-[15px]">
-                Create a lesson backed by `question_sets` and attach it through `sub_module_lessons`.
-              </p>
-            </div>
-            <div className="flex items-center justify-center rounded-2xl border border-grayScale-100 bg-grayScale-50/40 px-3 py-4 sm:px-6 sm:py-5">
-              {STEPS.map((step, index) => (
-                <div key={step.number} className="flex items-center">
-                  <div className="flex flex-col items-center">
-                    <div
-                      className={`flex h-9 w-9 items-center justify-center rounded-full text-xs font-semibold shadow-sm transition-all duration-300 sm:h-10 sm:w-10 sm:text-sm ${
-                        currentStep === step.number
-                          ? "bg-brand-500 text-white ring-4 ring-brand-100"
-                          : currentStep > step.number
-                            ? "bg-brand-500 text-white"
-                            : "border-2 border-grayScale-300 bg-white text-grayScale-400"
-                      }`}
-                    >
-                      {currentStep > step.number ? <Check className="h-4 w-4" /> : step.number}
-                    </div>
-                    <span className="mt-2 text-xs font-semibold text-grayScale-500">{step.label}</span>
-                  </div>
-                  {index < STEPS.length - 1 ? (
-                    <div className={`mx-4 h-0.5 w-20 ${currentStep > step.number ? "bg-brand-500" : "bg-grayScale-200"}`} />
-                  ) : null}
-                </div>
-              ))}
-            </div>
-          </>
-        ) : null}
-
-        {currentStep === 1 ? (
-          <Card className="overflow-hidden border-grayScale-200/80 shadow-sm">
-            <div className="border-b border-grayScale-100 bg-gradient-to-r from-grayScale-50/80 to-white px-5 py-5 sm:px-8 sm:py-6">
-              <h2 className="text-lg font-semibold tracking-tight text-grayScale-900 sm:text-xl">Step 1: Context</h2>
-              <p className="mt-1.5 max-w-3xl text-sm leading-relaxed text-grayScale-500">
-                Define lesson metadata that will be stored in the linked question set.
-              </p>
-            </div>
-            <div className="p-5 sm:p-8 lg:p-10">
-            <div className="mt-5 grid gap-8 lg:grid-cols-12">
-              <div className="space-y-4 lg:col-span-7">
-              <div className="space-y-2">
-                <label className="text-sm font-medium text-grayScale-700">Lesson title</label>
-                <Input
-                  value={lessonTitle}
-                  onChange={(e) => setLessonTitle(e.target.value)}
-                  placeholder="Enter lesson title"
-                  className="h-11"
-                />
-              </div>
-              <div className="space-y-2">
-                <label className="text-sm font-medium text-grayScale-700">Description</label>
-                <textarea
-                  value={lessonDescription}
-                  onChange={(e) => setLessonDescription(e.target.value)}
-                  className="min-h-[96px] w-full rounded-lg border border-grayScale-200 px-3 py-2.5 text-sm transition-colors focus:border-grayScale-400 focus:outline-none focus:ring-2 focus:ring-grayScale-100"
-                  placeholder="Enter lesson description"
-                />
-              </div>
-              <div className="space-y-2">
-                <label className="text-sm font-medium text-grayScale-700">Intro video URL (optional)</label>
-                <Input
-                  value={introVideoUrl}
-                  onChange={(e) => setIntroVideoUrl(e.target.value)}
-                  onBlur={() => void handleIntroVideoUrlBlur()}
-                  placeholder="https://..."
-                  type="url"
-                  inputMode="url"
-                  autoComplete="off"
-                  className="font-mono text-[13px]"
-                />
-                <div className="flex flex-wrap items-center gap-2">
-                  <label className="inline-flex cursor-pointer items-center gap-2 rounded-md border border-grayScale-200 px-3 py-2 text-xs text-grayScale-700 hover:bg-grayScale-50">
-                    {uploadingIntroVideo ? <SpinnerIcon className="h-4 w-4" alt="" /> : <Upload className="h-4 w-4" />}
-                    {uploadingIntroVideo ? "Uploading..." : "Upload video from computer"}
-                    <input
-                      type="file"
-                      accept="video/*"
-                      className="hidden"
-                      onChange={handleIntroVideoFileChange}
-                      disabled={uploadingIntroVideo}
-                    />
-                  </label>
-                  {introVideoUrl.trim() ? (
-                    <Button type="button" variant="ghost" size="sm" onClick={() => setIntroVideoUrl("")}>
-                      Clear URL
-                    </Button>
-                  ) : null}
-                </div>
-                {introVideoPreview ? (
-                  <div className="rounded-xl border border-grayScale-200 bg-grayScale-50/40 p-3">
-                    <p className="mb-2 text-xs font-medium text-grayScale-500">Preview</p>
-                    {introVideoPreview.kind === "vimeo" ? (
-                      <div className="overflow-hidden rounded-lg border border-grayScale-200 bg-black">
-                        <iframe
-                          src={introVideoPreview.url}
-                          title="Intro video preview"
-                          className="aspect-video w-full"
-                          allow="autoplay; fullscreen; picture-in-picture"
-                          allowFullScreen
-                        />
-                      </div>
-                    ) : (
-                      <video
-                        controls
-                        src={introVideoPreview.url}
-                        className="aspect-video w-full rounded-lg border border-grayScale-200 bg-black"
-                      />
-                    )}
-                  </div>
-                ) : null}
-              </div>
-              </div>
-              <aside className="space-y-4 lg:col-span-5">
-                <div className="rounded-xl border border-grayScale-200 bg-grayScale-50/40 p-5 shadow-sm">
-                  <h3 className="text-xs font-semibold uppercase tracking-wider text-grayScale-500">Lesson schema mapping</h3>
-                  <div className="mt-3 space-y-2 text-sm text-grayScale-700">
-                    <p>
-                      <span className="font-medium">question_sets.title</span> ← Lesson title
-                    </p>
-                    <p>
-                      <span className="font-medium">question_sets.description</span> ← Description
-                    </p>
-                    <p>
-                      <span className="font-medium">question_sets.set_type</span> = QUIZ
-                    </p>
-                    <p>
-                      <span className="font-medium">sub_module_lessons.intro_video_url</span> ← Intro URL
-                    </p>
-                  </div>
-                </div>
-              </aside>
-            </div>
-            </div>
-            <div className="flex flex-col-reverse items-stretch justify-between gap-3 border-t border-grayScale-100 bg-grayScale-50/30 px-5 py-4 sm:flex-row sm:items-center sm:px-8 sm:py-5">
-              <Button variant="ghost" onClick={() => navigate(backTo)} className="sm:w-auto">
-                Cancel
-              </Button>
-              <Button onClick={handleNext}>
-                Next: Questions
-                <ArrowRight className="ml-2 h-4 w-4" />
-              </Button>
-            </div>
-          </Card>
-        ) : null}
-
-        {currentStep === 2 ? (
-          <div className="space-y-5">
-            {questions.map((question, index) => (
-              <Card key={question.id} className="border border-grayScale-200/90 border-l-4 border-l-grayScale-700 p-5 shadow-sm">
-                <div className="mb-4 flex items-center justify-between">
-                  <div className="flex items-center gap-2">
-                    <GripVertical className="h-4 w-4 text-grayScale-400" />
-                    <span className="font-semibold">Question {index + 1}</span>
-                  </div>
-                  <button type="button" onClick={() => removeQuestion(question.id)} className="text-grayScale-400 hover:text-red-500">
-                    <Trash2 className="h-4 w-4" />
-                  </button>
-                </div>
-                <PracticeQuestionEditorFields
-                  value={{
-                    questionText: question.questionText,
-                    questionType: question.questionType,
-                    difficultyLevel: question.difficultyLevel,
-                    points: question.points,
-                    tips: question.tips,
-                    explanation: question.explanation,
-                    options: question.options,
-                    voicePrompt: question.voicePrompt,
-                    sampleAnswerVoicePrompt: question.sampleAnswerVoicePrompt,
-                    audioCorrectAnswerText: question.audioCorrectAnswerText,
-                    shortAnswer: question.shortAnswers[0] ?? "",
-                    imageUrl: question.imageUrl,
-                  }}
-                  onChange={(next) =>
-                    updateQuestion(question.id, {
-                      questionText: next.questionText,
-                      questionType: next.questionType as QuestionType,
-                      difficultyLevel: next.difficultyLevel as DifficultyLevel,
-                      points: next.points,
-                      tips: next.tips,
-                      explanation: next.explanation,
-                      options: next.options,
-                      voicePrompt: next.voicePrompt,
-                      sampleAnswerVoicePrompt: next.sampleAnswerVoicePrompt,
-                      audioCorrectAnswerText: next.audioCorrectAnswerText,
-                      shortAnswers: next.shortAnswer.trim() ? [next.shortAnswer.trim()] : [],
-                      imageUrl: next.imageUrl,
-                    })
-                  }
-                  mediaBusy={saving}
-                />
-              </Card>
-            ))}
-            <Button variant="outline" onClick={addQuestion} className="w-full border-dashed">
-              <Plus className="mr-2 h-4 w-4" />
-              Add another question
-            </Button>
-            <div className="flex items-center justify-between rounded-2xl border border-grayScale-200/80 bg-grayScale-50/30 px-4 py-4 sm:px-6 sm:py-5">
-              <Button variant="outline" onClick={handleBack}>
-                Back
-              </Button>
-              <Button onClick={handleNext}>
-                Next: Review
-                <ArrowRight className="ml-2 h-4 w-4" />
-              </Button>
-            </div>
-          </div>
-        ) : null}
-
-        {currentStep === 3 ? (
-          <Card className="overflow-hidden border-grayScale-200/80 shadow-sm">
-            <div className="border-b border-grayScale-100 bg-gradient-to-r from-grayScale-50/80 to-white px-5 py-5 sm:px-8 sm:py-6">
-              <h2 className="text-lg font-semibold tracking-tight text-grayScale-900 sm:text-xl">Step 3: Review & publish</h2>
-              <p className="mt-1.5 text-sm text-grayScale-500">Confirm lesson details and questions before saving or publishing.</p>
-            </div>
-            <div className="space-y-4 p-5 sm:p-8">
-              <div className="grid gap-4 lg:grid-cols-2">
-                <div className="overflow-hidden rounded-2xl border border-grayScale-200 bg-white">
-                  <div className="flex items-center justify-between border-b border-grayScale-100 px-4 py-3">
-                    <h3 className="text-base font-semibold text-grayScale-900">Basic Information</h3>
-                    <button
-                      type="button"
-                      className="text-sm font-medium text-brand-500 hover:text-brand-600"
-                      onClick={() => setCurrentStep(1)}
-                    >
-                      Edit
-                    </button>
-                  </div>
-                  <div className="divide-y divide-grayScale-100">
-                    <div className="flex items-center justify-between px-4 py-3 text-sm">
-                      <span className="text-grayScale-500">Title</span>
-                      <span className="font-medium text-grayScale-800">{lessonTitle || "Untitled Lesson"}</span>
-                    </div>
-                    <div className="flex items-center justify-between px-4 py-3 text-sm">
-                      <span className="text-grayScale-500">Description</span>
-                      <span className="max-w-[55%] truncate text-right font-medium text-grayScale-800">
-                        {lessonDescription || "—"}
-                      </span>
-                    </div>
-                    <div className="flex items-center justify-between px-4 py-3 text-sm">
-                      <span className="text-grayScale-500">Intro video URL</span>
-                      <span className="max-w-[55%] truncate text-right font-medium text-grayScale-800">{introVideoUrl || "—"}</span>
-                    </div>
-                    <div className="flex items-center justify-between px-4 py-3 text-sm">
-                      <span className="text-grayScale-500">Sub-module</span>
-                      <span className="font-medium text-grayScale-800">{subModuleId ?? "—"}</span>
-                    </div>
-                  </div>
-                </div>
-
-                <div className="overflow-hidden rounded-2xl border border-grayScale-200 bg-white">
-                  <div className="flex items-center justify-between border-b border-grayScale-100 px-4 py-3">
-                    <h3 className="text-base font-semibold text-grayScale-900">
-                      Questions
-                      <span className="ml-2 rounded-full bg-brand-100 px-2 py-0.5 text-xs font-semibold text-brand-700">
-                        {reviewQuestions.length}
-                      </span>
-                    </h3>
-                    <button
-                      type="button"
-                      className="text-sm font-medium text-brand-500 hover:text-brand-600"
-                      onClick={() => setCurrentStep(2)}
-                    >
-                      Edit
-                    </button>
-                  </div>
-                  <div className="space-y-3 p-3">
-                    {reviewQuestions.length === 0 ? (
-                      <div className="rounded-xl border border-dashed border-grayScale-200 bg-grayScale-50/50 p-4 text-sm text-grayScale-500">
-                        No question content added yet.
-                      </div>
-                    ) : (
-                      reviewQuestions.map((question, idx) => (
-                        <div key={question.id} className="rounded-xl border border-grayScale-200 bg-grayScale-50/35 p-3">
-                          <div className="mb-2 flex items-center gap-2">
-                            <span className="inline-flex h-5 min-w-5 items-center justify-center rounded-full bg-brand-100 px-1.5 text-[11px] font-semibold text-brand-700">
-                              {idx + 1}
-                            </span>
-                            <span className="rounded-md bg-indigo-50 px-2 py-0.5 text-[11px] font-semibold text-indigo-700">
-                              {questionTypeLabel(question.questionType)}
-                            </span>
-                            <span className="rounded-md bg-grayScale-100 px-2 py-0.5 text-[11px] font-semibold text-grayScale-600">
-                              {question.difficultyLevel}
-                            </span>
-                            <span className="text-[11px] font-semibold text-grayScale-500">{question.points} pt</span>
-                          </div>
-                          <p className="mb-2 line-clamp-2 text-sm font-medium text-grayScale-800">
-                            {question.questionText.trim() || `Question ${idx + 1}`}
-                          </p>
-                          {question.questionType === "MCQ" ? (
-                            <div className="space-y-1">
-                              {question.options.map((option, optionIdx) => (
-                                <div
-                                  key={`${question.id}-option-${optionIdx}`}
-                                  className={`rounded px-2 py-1 text-xs ${
-                                    option.isCorrect
-                                      ? "bg-green-50 font-medium text-green-700"
-                                      : "text-grayScale-500"
-                                  }`}
-                                >
-                                  {option.text || `Option ${optionIdx + 1}`}
-                                </div>
-                              ))}
-                            </div>
-                          ) : null}
-                        </div>
-                      ))
-                    )}
-                  </div>
-                </div>
-              </div>
-            </div>
-            <div className="flex items-center justify-between border-t border-grayScale-100 bg-grayScale-50/30 px-5 py-4 sm:px-8 sm:py-5">
-              <Button variant="outline" onClick={handleBack}>
-                Back
-              </Button>
-              <div className="flex gap-3">
-                <Button variant="outline" onClick={() => void saveLesson("DRAFT")} disabled={saving}>
-                  {saving ? "Saving..." : "Save as Draft"}
-                </Button>
-                <Button onClick={() => void saveLesson("PUBLISHED")} disabled={saving}>
-                  <Rocket className="mr-2 h-4 w-4" />
-                  {saving ? "Publishing..." : "Publish Now"}
-                </Button>
-              </div>
-            </div>
-          </Card>
-        ) : null}
-
-        {currentStep === 4 && resultStatus ? (
-          <div className="mx-auto flex max-w-xl flex-col items-center py-16 text-center">
-            <div className={`mb-5 grid h-24 w-24 place-items-center rounded-full ${resultStatus === "success" ? "bg-gradient-to-br from-brand-200 to-brand-400" : "bg-gradient-to-br from-red-200 to-red-400"}`}>
-              <Check className="h-10 w-10 text-white" />
-            </div>
-            <h2 className="text-4xl font-bold tracking-tight text-grayScale-900">
-              {resultStatus === "success" ? "Lesson Published Successfully!" : "Lesson save failed"}
-            </h2>
-            <p className="mt-3 text-sm text-grayScale-500">{resultStatus === "success" ? "Your lesson is now active." : resultMessage}</p>
-            <div className="mt-8 w-full space-y-3">
-              <Button
-                className="h-11 w-full text-base"
-                onClick={() =>
-                  navigate(lastSavedStatus === "PUBLISHED" ? "/content/human-language" : backTo)
-                }
-              >
-                Go back to Course
-              </Button>
-              {resultStatus === "success" ? (
-                <Button variant="outline" className="h-11 w-full text-base" onClick={() => navigate(0)}>
-                  Add Another Lesson
-                </Button>
-              ) : (
-                <Button variant="outline" className="h-11 w-full text-base" onClick={() => setCurrentStep(3)}>
-                  Back to Review
-                </Button>
-              )}
-            </div>
-          </div>
-        ) : null}
-      </div>
-    </div>
-  )
-}

src/pages/content-management/AddPracticeFlow.tsx

@@ -1,268 +0,0 @@
-import { useState } from "react";
-import {
-  Link,
-  useNavigate,
-  useParams,
-  useSearchParams,
-} from "react-router-dom";
-import { ArrowLeft } from "lucide-react";
-import { Button } from "../../components/ui/button";
-import { Stepper } from "../../components/ui/stepper";
-import successIcon from "../../assets/success.svg";
-
-import { ContextStep } from "./components/practice-steps/ContextStep";
-import { ScenarioStep } from "./components/practice-steps/ScenarioStep";
-import { PersonaStep } from "./components/practice-steps/PersonaStep";
-import { QuestionsStep } from "./components/practice-steps/QuestionsStep";
-import { ReviewStep } from "./components/practice-steps/ReviewStep";
-
-export function AddPracticeFlow() {
-  const navigate = useNavigate();
-  const { level } = useParams<{ level: string }>();
-  const [searchParams] = useSearchParams();
-  const backTo = searchParams.get("backTo");
-  const courseId = searchParams.get("courseId");
-  const moduleId = searchParams.get("moduleId");
-
-  const isModuleContext = backTo === "module";
-  const isCourseContext = backTo === "modules";
-
-  const backLabel =
-    backTo === "module"
-      ? "Back to Module"
-      : backTo === "modules"
-        ? "Back to Modules"
-        : "Back to Courses";
-  const backPath =
-    backTo === "module" && courseId && moduleId
-      ? `/new-content/learn-english/${level}/courses/${courseId}/modules/${moduleId}`
-      : backTo === "modules" && courseId
-        ? `/new-content/learn-english/${level}/courses/${courseId}`
-        : `/new-content/learn-english/${level}/courses`;
-
-  const flowSteps = isModuleContext
-    ? ["Context", "Persona", "Questions", "Review"]
-    : ["Context", "Scenario", "Persona", "Questions", "Review"];
-
-  const [currentStep, setCurrentStep] = useState(1);
-  const [selectedPersona, setSelectedPersona] = useState<string | null>(
-    "dawit",
-  );
-  const [isPublished, setIsPublished] = useState(false);
-
-  const [formData, setFormData] = useState({
-    program: "Intermediate",
-    course: "A2",
-    title: "",
-    description: "",
-    selectedVideo: "",
-    tips: "Focus on using the present perfect continuous tense to describe an action that started in the past and continues now.",
-    questions: [
-      {
-        id: "q1",
-        text: "How long have you been studying English?",
-        type: "Speaking",
-        voicePrompt: "prompt_q1_en.mp3",
-        sampleAnswer: "prompt_q1_en.mp3",
-      },
-    ],
-  });
-
-  const nextStep = () =>
-    setCurrentStep((prev) => Math.min(prev + 1, flowSteps.length));
-  const prevStep = () => setCurrentStep((prev) => Math.max(prev - 1, 1));
-
-  if (isPublished) {
-    return (
-      <div className="flex flex-col items-center justify-center min-h-screen px-4 text-center pb-20 animate-in fade-in zoom-in duration-500">
-        <div className="mb-10 relative">
-          <div className="absolute inset-0 bg-brand-500/10 blur-3xl rounded-full" />
-          <img
-            src={successIcon}
-            alt="Success"
-            className="h-[128px] w-[128px] relative"
-          />
-        </div>
-        <h1 className="text-[28px] font-bold text-grayScale-900 mb-2">
-          Practice Published Successfully!
-        </h1>
-        <p className="text-grayScale-600 text-md mb-14 max-w-lg font-medium leading-relaxed">
-          Your speaking practice is now active and available inside the module.
-        </p>
-        <div className="flex flex-col gap-4 w-full max-w-[400px]">
-          <Button
-            onClick={() => navigate(backPath)}
-            className="h-14 rounded-[6px] bg-[#9E2891] font-bold shadow-xl shadow-brand-500/20 text-[16px] text-white "
-          >
-            Go back to Module
-          </Button>
-          <Button
-            onClick={() => {
-              setIsPublished(false);
-              setCurrentStep(1);
-              setFormData({
-                ...formData,
-                title: "",
-                description: "",
-              });
-            }}
-            variant="outline"
-            className="h-14 rounded-[6px] border-[#9E2891] text-[#9E2891] font-semibold text-[16px] bg-white "
-          >
-            Add Another Practice
-          </Button>
-        </div>
-      </div>
-    );
-  }
-
-  // Helper to map currentStep to the actual component for the module flow
-  const renderStep = () => {
-    if (!isModuleContext) {
-      switch (currentStep) {
-        case 1:
-          return (
-            <ContextStep
-              formData={formData}
-              setFormData={setFormData}
-              nextStep={nextStep}
-              navigate={navigate}
-              level={level!}
-              isModuleContext={isModuleContext}
-              isCourseContext={isCourseContext}
-            />
-          );
-        case 2:
-          return (
-            <ScenarioStep
-              formData={formData}
-              setFormData={setFormData}
-              nextStep={nextStep}
-              prevStep={prevStep}
-            />
-          );
-        case 3:
-          return (
-            <PersonaStep
-              selectedPersona={selectedPersona}
-              setSelectedPersona={setSelectedPersona}
-              nextStep={nextStep}
-              prevStep={prevStep}
-            />
-          );
-        case 4:
-          return (
-            <QuestionsStep
-              formData={formData}
-              setFormData={setFormData}
-              nextStep={nextStep}
-              prevStep={prevStep}
-            />
-          );
-        case 5:
-          return (
-            <ReviewStep
-              formData={formData}
-              selectedPersona={selectedPersona}
-              prevStep={prevStep}
-              setIsPublished={setIsPublished}
-              isModuleContext={isModuleContext}
-            />
-          );
-        default:
-          return null;
-      }
-    } else {
-      // Module Context Flow (Skips Scenario)
-      switch (currentStep) {
-        case 1:
-          return (
-            <ContextStep
-              formData={formData}
-              setFormData={setFormData}
-              nextStep={nextStep}
-              navigate={navigate}
-              level={level!}
-              isModuleContext={isModuleContext}
-              isCourseContext={isCourseContext}
-            />
-          );
-        case 2:
-          return (
-            <PersonaStep
-              selectedPersona={selectedPersona}
-              setSelectedPersona={setSelectedPersona}
-              nextStep={nextStep}
-              prevStep={prevStep}
-            />
-          );
-        case 3:
-          return (
-            <QuestionsStep
-              formData={formData}
-              setFormData={setFormData}
-              nextStep={nextStep}
-              prevStep={prevStep}
-            />
-          );
-        case 4:
-          return (
-            <ReviewStep
-              formData={formData}
-              selectedPersona={selectedPersona}
-              prevStep={prevStep}
-              setIsPublished={setIsPublished}
-              isModuleContext={isModuleContext}
-            />
-          );
-        default:
-          return null;
-      }
-    }
-  };
-
-  return (
-    <div className="space-y-8 pb-32 px-6 pt-6 min-h-screen ">
-      {/* Header */}
-      <div className="mx-auto max-w-7xl w-full">
-        <div className="flex items-center justify-between mb-8">
-          <Link
-            to={backPath}
-            className="flex items-center gap-2 text-[15px] font-medium text-grayScale-600 transition-colors hover:text-brand-500 decoration-none"
-          >
-            <ArrowLeft className="h-4 w-4" />
-            {backLabel}
-          </Link>
-        </div>
-
-        <div className=" mb-10">
-          <div className="flex items-center justify-between">
-            <h1 className="text-3xl font-bold text-[#0F172A]">
-              Add New Practice
-            </h1>
-            <Button
-              variant="outline"
-              className="rounded-[8px] border-grayScale-200 text-grayScale-600 h-10 px-6 font-bold bg-white hover:bg-grayScale-50"
-              onClick={() => navigate(backPath)}
-            >
-              Cancel
-            </Button>
-          </div>
-          <p className="text-grayScale-400 text-base">
-            Create a new immersive practice session for students.
-          </p>
-        </div>
-
-        <div className="mx-auto w-[70%] mb-12">
-          <Stepper steps={flowSteps} currentStep={currentStep} />
-        </div>
-
-        <div
-          className={`mx-auto ${(!isModuleContext && currentStep === 3) || (isModuleContext && currentStep === 2) || currentStep === 5 ? "max-w-6xl" : "max-w-4xl"}`}
-        >
-          {renderStep()}
-        </div>
-      </div>
-    </div>
-  );
-}

src/pages/content-management/AddVideoFlow.tsx

@@ -1,216 +0,0 @@
-import { useState } from "react";
-import { Link, useNavigate, useParams } from "react-router-dom";
-import { toast } from "sonner";
-import { ArrowLeft } from "lucide-react";
-import { Button } from "../../components/ui/button";
-import { Stepper } from "../../components/ui/stepper";
-import { createModuleLesson } from "../../api/courses.api";
-
-import { VideoDetailStep } from "./components/video-steps/VideoDetailStep";
-import { ReviewPublishStep } from "./components/video-steps/ReviewPublishStep";
-import successIcon from "../../assets/success.svg";
-
-const STEPS = [
-  { id: 1, label: "Video Detail" },
-  { id: 2, label: "Review & Publish" },
-];
-
-export type AddLessonFormData = {
-  title: string;
-  order: string;
-  description: string;
-  videoUrl: string;
-  thumbnailUrl: string;
-};
-
-const emptyForm = (): AddLessonFormData => ({
-  title: "",
-  order: "1",
-  description: "",
-  videoUrl: "",
-  thumbnailUrl: "",
-});
-
-function descriptionToApiPlain(html: string): string {
-  if (!html?.trim()) return "";
-  const t = html.trim();
-  if (!t.includes("<")) return t;
-  if (typeof document === "undefined") {
-    return t.replace(/<[^>]*>/g, " ").replace(/\s+/g, " ").trim();
-  }
-  const doc = new DOMParser().parseFromString(html, "text/html");
-  return doc.body.textContent?.replace(/\s+/g, " ").trim() ?? "";
-}
-
-export function AddVideoFlow() {
-  const navigate = useNavigate();
-  const { level, courseId, moduleId } = useParams<{
-    level: string;
-    courseId: string;
-    moduleId: string;
-  }>();
-  const [currentStep, setCurrentStep] = useState(1);
-  const [isPublished, setIsPublished] = useState(false);
-  const [formData, setFormData] = useState<AddLessonFormData>(emptyForm);
-  const [publishing, setPublishing] = useState(false);
-  const [formResetKey, setFormResetKey] = useState(0);
-
-  const nextStep = () => setCurrentStep((prev) => Math.min(prev + 1, 2));
-  const prevStep = () => setCurrentStep((prev) => Math.max(prev - 1, 1));
-
-  const backPath = `/new-content/learn-english/${level}/courses/${courseId}/modules/${moduleId}`;
-
-  const handlePublish = async () => {
-    const mid = Number(moduleId);
-    if (!Number.isFinite(mid) || mid < 1) {
-      toast.error("Invalid module");
-      return;
-    }
-    const title = formData.title.trim();
-    const videoUrl = formData.videoUrl.trim();
-    const thumbnail = formData.thumbnailUrl.trim();
-    if (!title) {
-      toast.error("Title is required");
-      return;
-    }
-    if (!videoUrl) {
-      toast.error("Video URL is required");
-      return;
-    }
-    if (!thumbnail) {
-      toast.error("Thumbnail is required");
-      return;
-    }
-    const description = descriptionToApiPlain(formData.description);
-    if (!description) {
-      toast.error("Description is required");
-      return;
-    }
-    setPublishing(true);
-    try {
-      await createModuleLesson(mid, {
-        title,
-        video_url: videoUrl,
-        thumbnail,
-        description,
-      });
-      toast.success("Lesson created");
-      setIsPublished(true);
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to create lesson";
-      toast.error(msg);
-    } finally {
-      setPublishing(false);
-    }
-  };
-
-  if (isPublished) {
-    return (
-      <div className="flex flex-col items-center justify-center min-h-screen px-4 text-center pb-20 animate-in fade-in zoom-in duration-500 ">
-        <div className="mb-12 relative scale-110">
-          <div className="absolute inset-0 bg-brand-500/5 blur-3xl rounded-full" />
-          <div className="relative">
-            <div className="absolute inset-0 bg-brand-500/10 blur-3xl rounded-full" />
-            <img
-              src={successIcon}
-              alt="Success"
-              className="h-[128px] w-[128px] relative"
-            />
-          </div>
-        </div>
-
-        <h1 className="text-[26px] font-bold text-grayScale-900 mb-4">
-          Lesson created successfully
-        </h1>
-        <p className="text-grayScale-600 text-base mb-14 max-w-lg font-medium leading-relaxed">
-          Your lesson is now available in this module.
-        </p>
-
-        <div className="flex flex-col gap-4 w-full max-w-[400px]">
-          <Button
-            onClick={() => navigate(backPath)}
-            className="h-12 rounded-[6px] bg-brand-500 font-bold text-[17px] text-white  transition-all active:scale-95"
-          >
-            View module
-          </Button>
-          <Button
-            onClick={() => {
-              setFormData(emptyForm());
-              setFormResetKey((k) => k + 1);
-              setIsPublished(false);
-              setCurrentStep(1);
-            }}
-            variant="outline"
-            className="h-12 rounded-[6px] border-brand-200 text-brand-500 font-bold text-[17px] active:scale-95 bg-white"
-          >
-            Add another lesson
-          </Button>
-          <Button
-            onClick={() => navigate(`/new-content/learn-english/${level}/courses`)}
-            variant="ghost"
-            className="h-10 text-grayScale-600 font-medium"
-          >
-            All courses
-          </Button>
-        </div>
-      </div>
-    );
-  }
-
-  return (
-    <div className="space-y-8 pb-32 px-6 pt-6 min-h-screen ">
-      <div className="mx-auto max-w-7xl w-full">
-        <div className="flex items-center justify-between mb-8">
-          <Link
-            to={backPath}
-            className="flex items-center gap-2 text-[15px] font-medium text-grayScale-500 transition-colors hover:text-brand-500 decoration-none"
-          >
-            <ArrowLeft className="h-4 w-4" />
-            Back to module
-          </Link>
-          <Button
-            variant="outline"
-            className="rounded-[8px] border-grayScale-200 text-grayScale-600 h-10 px-6 font-bold bg-white hover:bg-grayScale-50"
-            onClick={() => navigate(backPath)}
-          >
-            Cancel
-          </Button>
-        </div>
-
-        <h1 className="text-2xl font-bold text-[#0F172A] mb-10">
-          Add new lesson
-        </h1>
-
-        <div className="mx-auto max-w-4xl mb-12">
-          <Stepper
-            steps={STEPS.map((s) => s.label)}
-            currentStep={currentStep}
-          />
-        </div>
-
-        <div className="mx-auto max-w-7xl">
-          {currentStep === 1 && (
-            <VideoDetailStep
-              key={formResetKey}
-              formData={formData}
-              setFormData={setFormData}
-              onContinue={nextStep}
-            />
-          )}
-
-          {currentStep === 2 && (
-            <ReviewPublishStep
-              formData={formData}
-              prevStep={prevStep}
-              onPublish={() => void handlePublish()}
-              publishing={publishing}
-            />
-          )}
-        </div>
-      </div>
-    </div>
-  );
-}

src/pages/content-management/AllCoursesPage.tsx

@@ -28,7 +28,7 @@ import {
 import { Textarea } from "../../components/ui/textarea"
 import { toast } from "sonner"
 import { cn } from "../../lib/utils"
-import spinnerSrc from "../../assets/Circular-indeterminate progress indicator.svg"
+import { SpinnerIcon } from "../../components/ui/spinner-icon"
 
 type CourseWithCategory = Course & { category_name: string }
 
@@ -230,7 +230,10 @@ export function AllCoursesPage() {
   if (loading) {
     return (
       <div className="flex flex-col items-center justify-center py-32">
-        <img src={spinnerSrc} alt="" className="h-10 w-10 animate-spin" />
+        <div className="rounded-2xl bg-white shadow-sm p-6">
+          <SpinnerIcon className="h-10 w-10" />
+        </div>
+        <p className="mt-4 text-sm font-medium text-grayScale-400">Loading all sub-categories…</p>
       </div>
     )
   }

src/pages/content-management/AttachPracticeFlow.tsx

@@ -1,193 +0,0 @@
-import { useState } from "react";
-import { Link, useNavigate, useParams } from "react-router-dom";
-import { ArrowLeft, Clock, FileVideo, Check } from "lucide-react";
-import { Button } from "../../components/ui/button";
-import { Stepper } from "../../components/ui/stepper";
-import successIcon from "../../assets/success.svg";
-
-import { AttachPracticeStep1 } from "./components/practice-steps/AttachPracticeStep1";
-import { AttachPracticeReviewStep } from "./components/practice-steps/AttachPracticeReviewStep";
-
-export function AttachPracticeFlow() {
-  const navigate = useNavigate();
-  const { programType, courseId, unitId, moduleId } = useParams<{
-    programType: string;
-    courseId: string;
-    unitId: string;
-    moduleId: string;
-  }>();
-
-  const backPath = `/new-content/courses/${programType}/${courseId}/${unitId}/${moduleId}`;
-  const [currentStep, setCurrentStep] = useState(1);
-  const [isPublished, setIsPublished] = useState(false);
-
-  const [formData, setFormData] = useState({
-    program:
-      programType === "skill"
-        ? "Skill-Based Courses"
-        : "English Proficiency Exams",
-    module: "Module 4: Interactive Speaking",
-    video: "Intro to Interactive Speaking",
-    questionType: "speaking",
-    version: "v1",
-  });
-
-  const steps = ["Set Video", "Review & Publish"];
-
-  const nextStep = () =>
-    setCurrentStep((prev) => Math.min(prev + 1, steps.length));
-  const prevStep = () => setCurrentStep((prev) => Math.max(prev - 1, 1));
-
-  if (isPublished) {
-    return (
-      <div className="flex flex-col items-center justify-center min-h-screen px-4 text-center pb-20 animate-in fade-in zoom-in duration-700 ">
-        {/* Scalloped Success Icon */}
-        <div className="mb-10 relative">
-          <div className="absolute inset-0 bg-brand-500/10 blur-3xl rounded-full" />
-          <img
-            src={successIcon}
-            alt="Success"
-            className="h-[128px] w-[128px] relative"
-          />
-        </div>
-
-        <h1 className="text-[28px] font-bold text-grayScale-900 mb-2">
-          Practice Attached Successfully!
-        </h1>
-        <p className="text-grayScale-600 text-md mb-14 max-w-2xl font-medium leading-relaxed">
-          The practice has been successfully linked to a video{" "}
-          <span className="text-[#9E2891]">“{formData.video}”</span>
-        </p>
-
-        {/* Video Info Card */}
-        <div className="w-full max-w-[600px] bg-[#9E289114] border border-[#9E2891] rounded-[12px] p-4 flex items-center justify-between mb-16 shadow-sm">
-          <div className="flex items-center gap-5">
-            <div className="h-[60px] w-[120px] rounded-xl overflow-hidden shadow-inner flex-shrink-0">
-              <img
-                src="https://images.unsplash.com/photo-1557425955-df376b5903c8?auto=format&fit=crop&q=80&w=400"
-                alt="Video Thumbnail"
-                className="w-full h-full object-cover"
-              />
-            </div>
-            <div className="text-left space-y-1.5">
-              <h4 className="text-[14px] font-medium text-grayScale-900">
-                Intro to IELTS Speaking Part 1
-              </h4>
-              <div className="flex items-center gap-3 text-grayScale-400 font-medium text-[12px]">
-                <div className="flex items-center gap-1.5 uppercase tracking-wide">
-                  <Clock className="h-3 w-3" />
-                  10:42 mins
-                </div>
-                <span>•</span>
-                <div className="flex items-center gap-1.5 uppercase tracking-wide">
-                  MP4
-                </div>
-              </div>
-            </div>
-          </div>
-          <div className="pr-4">
-            <Check className="h-5 w-5 text-[#9E2891] stroke-[3px]" />
-          </div>
-        </div>
-
-        {/* Action Buttons */}
-        <div className="flex flex-col gap-4 w-full max-w-[440px]">
-          <Button
-            onClick={() => navigate(backPath)}
-            className="h-14 rounded-[6px] bg-[#9E2891] font-bold shadow-xl shadow-brand-500/20 text-[16px] text-white"
-          >
-            Go back to Videos
-          </Button>
-          <Button
-            variant="outline"
-            onClick={() => {
-              setIsPublished(false);
-              setCurrentStep(1);
-            }}
-            className="h-14 rounded-[6px] border-[#9E2891] text-[#9E2891] font-semibold text-[16px] bg-white"
-          >
-            Attach More Practice
-          </Button>
-        </div>
-      </div>
-    );
-  }
-
-  const renderStep = () => {
-    switch (currentStep) {
-      case 1:
-        return (
-          <AttachPracticeStep1
-            formData={formData}
-            setFormData={setFormData}
-            nextStep={nextStep}
-            onCancel={() => navigate(backPath)}
-          />
-        );
-      case 2:
-        return (
-          <AttachPracticeReviewStep
-            formData={formData}
-            prevStep={prevStep}
-            onPublish={() => setIsPublished(true)}
-          />
-        );
-      default:
-        return null;
-    }
-  };
-
-  const title =
-    currentStep === 1 ? "Attach Practice to a Video" : "Review & Publish";
-  const description =
-    currentStep === 1
-      ? "Create a new immersive practice session for a video."
-      : "Verify practice details before publishing it.";
-
-  return (
-    <div className="space-y-8 pb-32 px-6 pt-10 min-h-screen  animate-in fade-in duration-500">
-      <div className="mx-auto w-full">
-        {/* Navigation Breadcrumb */}
-        <div className="flex items-center justify-between mb-12">
-          <Link
-            to={backPath}
-            className="flex items-center gap-2 text-[15px] font-bold text-grayScale-600 transition-colors hover:text-brand-500 group"
-          >
-            <ArrowLeft className="h-5 w-5 transition-transform group-hover:-translate-x-1" />
-            Back to Videos
-          </Link>
-        </div>
-
-        {/* Stepper Area */}
-        <div className="mb-20 w-full pointer-events-none">
-          <Stepper steps={steps} currentStep={currentStep} />
-        </div>
-
-        {/* Page Title & Header Actions */}
-        <div className="mb-10 flex items-start justify-between">
-          <div className="">
-            <h1 className="text-[30px] font-bold text-[#0D1421] ">{title}</h1>
-            <p className="text-grayScale-400 text-[16px] font-medium ">
-              {description}
-            </p>
-          </div>
-          <div className="flex items-center gap-3">
-            <Button
-              variant="outline"
-              className="h-10 px-8 rounded-[6px] border-grayScale-100 text-grayScale-600 font-bold bg-white hover:bg-grayScale-50 shadow-sm"
-              onClick={() => navigate(backPath)}
-            >
-              Cancel
-            </Button>
-            <Button className="h-10 px-8 rounded-[6px] bg-[#9E2891] font-bold text-white shadow-md hover:bg-[#8A237E] transition-all">
-              Save as Draft
-            </Button>
-          </div>
-        </div>
-
-        {/* Form Content */}
-        <div className="w-full">{renderStep()}</div>
-      </div>
-    </div>
-  );
-}

src/pages/content-management/AttachProgramPracticeFlow.tsx

@@ -1,157 +0,0 @@
-import { useState } from "react";
-import { Link, useNavigate, useParams } from "react-router-dom";
-import { ArrowLeft, Check } from "lucide-react";
-import { Button } from "../../components/ui/button";
-import { Stepper } from "../../components/ui/stepper";
-import successIcon from "../../assets/success.svg";
-
-import { ProgramAttachStep1 } from "./components/practice-steps/ProgramAttachStep1";
-import { ProgramAttachReviewStep } from "./components/practice-steps/ProgramAttachReviewStep";
-
-export function AttachProgramPracticeFlow() {
-  const navigate = useNavigate();
-  const { programType } = useParams<{ programType: string }>();
-
-  const backPath = `/new-content/courses/${programType}`;
-  const [currentStep, setCurrentStep] = useState(1);
-  const [isPublished, setIsPublished] = useState(false);
-
-  const [formData, setFormData] = useState({
-    program: "English Proficiency Exams",
-    test: "Mock Exam 1",
-    questionType: "Speaking Practice",
-    version: "V 1.0",
-  });
-
-  const steps = ["Set Program", "Review & Publish"];
-
-  const nextStep = () =>
-    setCurrentStep((prev) => Math.min(prev + 1, steps.length));
-  const prevStep = () => setCurrentStep((prev) => Math.max(prev - 1, 1));
-
-  if (isPublished) {
-    return (
-      <div className="flex flex-col items-center justify-center min-h-screen px-4 text-center pb-20 animate-in fade-in zoom-in duration-700 bg-white">
-        {/* Scalloped Success Icon */}
-        <div className="mb-10 relative">
-          <div className="absolute inset-0 bg-brand-500/10 blur-3xl rounded-full" />
-          <img
-            src={successIcon}
-            alt="Success"
-            className="h-[128px] w-[128px] relative"
-          />
-        </div>
-
-        <h1 className="text-[28px] font-bold text-grayScale-900 mb-2">
-          Practice Attached Successfully!
-        </h1>
-        <p className="text-grayScale-600 text-md mb-14 max-w-lg font-medium leading-relaxed">
-          The practice has been successfully linked to the program{" "}
-          <span className="text-[#9E2891]">“{formData.program}”</span>
-        </p>
-
-        <div className="flex flex-col gap-4 w-full max-w-[440px]">
-          <Button
-            onClick={() => navigate(backPath)}
-            className="h-14 rounded-[12px] bg-[#9E2891] font-bold shadow-xl shadow-brand-500/20 text-[16px] text-white "
-          >
-            Go back to Program
-          </Button>
-          <Button
-            variant="outline"
-            onClick={() => {
-              setIsPublished(false);
-              setCurrentStep(1);
-            }}
-            className="h-14 rounded-[12px] border-[#9E2891] text-[#9E2891] font-bold text-[16px] bg-white "
-          >
-            Attach More Practice
-          </Button>
-        </div>
-      </div>
-    );
-  }
-
-  const renderStep = () => {
-    switch (currentStep) {
-      case 1:
-        return (
-          <ProgramAttachStep1
-            formData={formData}
-            setFormData={setFormData}
-            nextStep={nextStep}
-            onCancel={() => navigate(backPath)}
-          />
-        );
-      case 2:
-        return (
-          <ProgramAttachReviewStep
-            formData={formData}
-            prevStep={prevStep}
-            onPublish={() => setIsPublished(true)}
-            onCancel={() => navigate(backPath)}
-          />
-        );
-      default:
-        return null;
-    }
-  };
-
-  const title =
-    currentStep === 1 ? "Attach Practice to a program" : "Review & Publish";
-  const description =
-    currentStep === 1
-      ? "Create a new immersive practice session for a video."
-      : "Verify practice details before publishing it.";
-
-  return (
-    <div className="space-y-8 px-6 pt-10 min-h-screen animate-in fade-in duration-500">
-      <div className=" w-full">
-        {/* Navigation Breadcrumb */}
-        <div className="flex items-center justify-between mb-12">
-          <Link
-            to={backPath}
-            className="flex items-center gap-2 text-[15px] font-bold text-grayScale-600 transition-colors hover:text-brand-500 group"
-          >
-            <ArrowLeft className="h-5 w-5 transition-transform group-hover:-translate-x-1" />
-            Back to Program
-          </Link>
-        </div>
-
-        {/* Stepper Area */}
-        <div className="mb-20 pointer-events-none">
-          <Stepper steps={steps} currentStep={currentStep} />
-        </div>
-
-        {/* Page Title & Header Actions */}
-        <div className="mb-10 flex items-start justify-between">
-          <div className="">
-            <h1 className="text-[30px] font-bold text-[#0D1421] ">{title}</h1>
-            <p className="text-grayScale-500 text-[14px]">{description}</p>
-          </div>
-          <div className="flex items-center gap-3">
-            <Button
-              variant="outline"
-              className="h-10 px-8 rounded-[6px] border-grayScale-100 text-grayScale-600 font-bold bg-white hover:bg-grayScale-50 shadow-sm"
-              onClick={() => navigate(backPath)}
-            >
-              Cancel
-            </Button>
-            <Button className="h-10 px-8 rounded-[6px] bg-[#9E2891] font-bold text-white shadow-md hover:bg-[#8A237E] transition-all">
-              Save as Draft
-            </Button>
-          </div>
-        </div>
-
-        {/* Form Content */}
-        <div
-          className={`w-full mx-auto ${
-            currentStep === 1 ? "max-w-4xl" : "max-w-none"
-          }`}
-        >
-          {renderStep()}
-        </div>
-      </div>
-    </div>
-  );
-}

src/pages/content-management/ContentManagementLayout.tsx

@@ -1,8 +1,19 @@
-import { Outlet } from "react-router-dom"
+import { NavLink, Outlet } from "react-router-dom"
+import { cn } from "../../lib/utils"
+
+const tabs = [
+  { label: "Overview", to: "/content" },
+  { label: "Courses", to: "/content/courses" },
+  { label: "Human Language", to: "/content/human-language" },
+  { label: "Flows", to: "/content/flows" },
+  { label: "Practice", to: "/content/practices" },
+  { label: "Questions", to: "/content/questions" },
+]
 
 export function ContentManagementLayout() {
   return (
     <div className="mx-auto w-full max-w-7xl px-4 py-6 sm:px-6 lg:px-8">
+      {/* Header */}
       <div className="mb-8">
         <div className="flex items-center gap-3">
           <div className="h-9 w-1 rounded-full bg-gradient-to-b from-brand-500 to-brand-600" />
@@ -11,12 +22,38 @@ export function ContentManagementLayout() {
               Content Management
             </h1>
             <p className="mt-1 max-w-2xl text-sm leading-relaxed text-grayScale-500">
-              View and manage practice content for courses, modules, and lessons
+              Manage courses, speaking exercises, practices, and questions
             </p>
           </div>
         </div>
       </div>
 
+      {/* Tab bar */}
+      <div
+        className="scroll-hide mb-8 flex items-center gap-1 overflow-x-auto rounded-2xl border border-grayScale-100 bg-grayScale-50/60 p-1.5 shadow-sm backdrop-blur"
+        style={{ scrollbarWidth: "none", msOverflowStyle: "none" }}
+      >
+        <style>{`.scroll-hide::-webkit-scrollbar { display: none; }`}</style>
+        {tabs.map((t) => (
+          <NavLink
+            key={t.to}
+            to={t.to}
+            end={t.to === "/content"}
+            className={({ isActive }) =>
+              cn(
+                "relative whitespace-nowrap rounded-xl px-5 py-2 text-sm font-semibold transition-all duration-200 ease-in-out",
+                "text-grayScale-500 hover:bg-white/80 hover:text-brand-600 hover:shadow-sm",
+                isActive &&
+                  "bg-brand-500 text-white shadow-md shadow-brand-500/25 hover:bg-brand-600 hover:text-white",
+              )
+            }
+          >
+            {t.label}
+          </NavLink>
+        ))}
+      </div>
+
+      {/* Page content */}
       <Outlet />
     </div>
   )

src/pages/content-management/CourseCategoryPage.tsx

@@ -1,6 +1,6 @@
 import { useEffect, useState } from "react"
 import { Link } from "react-router-dom"
-import { FolderOpen, RefreshCw, BookOpen, Plus, Trash2 } from "lucide-react"
+import { FolderOpen, RefreshCw, BookOpen, Plus } from "lucide-react"
 import spinnerSrc from "../../assets/Circular-indeterminate progress indicator.svg"
 import alertSrc from "../../assets/Alert.svg"
 import { Card, CardContent, CardHeader, CardTitle } from "../../components/ui/card"
@@ -11,11 +11,10 @@ import {
   Dialog,
   DialogContent,
   DialogDescription,
-  DialogFooter,
   DialogHeader,
   DialogTitle,
 } from "../../components/ui/dialog"
-import { getCourseCategories, createCourseCategory, deleteCourseCategory } from "../../api/courses.api"
+import { getCourseCategories, createCourseCategory } from "../../api/courses.api"
 import type { CourseCategory } from "../../types/course.types"
 import { toast } from "sonner"
 
@@ -30,8 +29,6 @@ export function CourseCategoryPage() {
   const [newSubCategoryName, setNewSubCategoryName] = useState("")
   const [pendingSubCategories, setPendingSubCategories] = useState<string[]>([])
   const [searchQuery, setSearchQuery] = useState("")
-  const [deleteTarget, setDeleteTarget] = useState<CourseCategory | null>(null)
-  const [deleting, setDeleting] = useState(false)
 
   const fetchCategories = async () => {
     setLoading(true)
@@ -167,26 +164,12 @@ export function CourseCategoryPage() {
                 </CardHeader>
 
                 <CardContent>
-                  <div className="flex items-center justify-between gap-2">
+                  <span className="inline-flex items-center gap-1.5 text-sm font-medium text-brand-500 transition-colors group-hover:text-brand-600">
-                    <span className="inline-flex items-center gap-1.5 text-sm font-medium text-brand-500 transition-colors group-hover:text-brand-600">
+                    View Sub-categories
-                      View Sub-categories
+                    <span className="inline-block transition-transform duration-300 group-hover:translate-x-1">
-                      <span className="inline-block transition-transform duration-300 group-hover:translate-x-1">
+                      →
-                        →
-                      </span>
                     </span>
-                    <button
+                  </span>
-                      type="button"
-                      className="inline-flex h-8 w-8 items-center justify-center rounded-md border border-red-200 bg-white text-red-500 hover:bg-red-50"
-                      onClick={(e) => {
-                        e.preventDefault()
-                        e.stopPropagation()
-                        setDeleteTarget(category)
-                      }}
-                      aria-label={`Delete category ${category.name}`}
-                    >
-                      <Trash2 className="h-4 w-4" />
-                    </button>
-                  </div>
                 </CardContent>
               </Card>
             </Link>
@@ -352,7 +335,7 @@ export function CourseCategoryPage() {
                   if (createdCategoryId && pendingSubCategories.length > 0) {
                     await Promise.all(
                       pendingSubCategories.map((subName) =>
-                        createCourseCategory({ name: subName, parent_id: createdCategoryId }),
+                        createCourseCategory({ name: subName }),
                       ),
                     )
                   }
@@ -388,46 +371,6 @@ export function CourseCategoryPage() {
           </div>
         </DialogContent>
       </Dialog>
-
-      <Dialog open={deleteTarget !== null} onOpenChange={(open) => !open && setDeleteTarget(null)}>
-        <DialogContent className="max-w-md">
-          <DialogHeader>
-            <DialogTitle>Delete category?</DialogTitle>
-            <DialogDescription>
-              {deleteTarget
-                ? `This will permanently delete "${deleteTarget.name}" and all linked sub-categories/courses.`
-                : ""}
-            </DialogDescription>
-          </DialogHeader>
-          <DialogFooter>
-            <Button type="button" variant="outline" onClick={() => setDeleteTarget(null)} disabled={deleting}>
-              Cancel
-            </Button>
-            <Button
-              type="button"
-              className="bg-red-600 text-white hover:bg-red-700"
-              disabled={deleting}
-              onClick={async () => {
-                if (!deleteTarget) return
-                setDeleting(true)
-                try {
-                  await deleteCourseCategory(deleteTarget.id)
-                  toast.success("Category deleted")
-                  setDeleteTarget(null)
-                  await fetchCategories()
-                } catch (err: any) {
-                  const message = err?.response?.data?.message || "Failed to delete category."
-                  toast.error("Could not delete category", { description: message })
-                } finally {
-                  setDeleting(false)
-                }
-              }}
-            >
-              {deleting ? "Deleting..." : "Delete"}
-            </Button>
-          </DialogFooter>
-        </DialogContent>
-      </Dialog>
     </div>
   )
 }

src/pages/content-management/CourseDetailPage.tsx

@@ -1,616 +0,0 @@
-import { useCallback, useEffect, useState } from "react";
-import {
-  ArrowLeft,
-  Plus,
-  Calendar,
-  Layers,
-  Pencil,
-  Trash2,
-  X,
-} from "lucide-react";
-import { Link, useNavigate, useParams } from "react-router-dom";
-import { toast } from "sonner";
-import { Button } from "../../components/ui/button";
-import { Card } from "../../components/ui/card";
-import {
-  Dialog,
-  DialogContent,
-  DialogDescription,
-  DialogFooter,
-  DialogHeader,
-  DialogTitle,
-} from "../../components/ui/dialog";
-import { Input } from "../../components/ui/input";
-import { Textarea } from "../../components/ui/textarea";
-import { cn } from "../../lib/utils";
-import spinnerSrc from "../../assets/Circular-indeterminate progress indicator.svg";
-import alertSrc from "../../assets/Alert.svg";
-import {
-  deleteTopLevelCourseModule,
-  getProgramCourses,
-  getTopLevelCourseModules,
-  updateTopLevelCourseModule,
-} from "../../api/courses.api";
-import { refreshFileUrl, resolveFileUrl } from "../../api/files.api";
-import type {
-  ProgramCourseListItem,
-  TopLevelCourseModuleItem,
-} from "../../types/course.types";
-import { AddModuleModal } from "./components/AddModuleModal";
-import { ModuleIconUploadField } from "./components/ModuleIconUploadField";
-
-const MODULE_CARD_GRADIENT =
-  "from-[#8E44AD] to-[#C39BD3]" as const;
-
-function isLikelyImageUrl(src: string): boolean {
-  const t = src.trim();
-  return (
-    t.startsWith("http://") ||
-    t.startsWith("https://") ||
-    t.startsWith("/") ||
-    t.startsWith("data:")
-  );
-}
-
-function isSignedMinioUrl(src: string): boolean {
-  const value = src.trim();
-  if (!value.startsWith("http://") && !value.startsWith("https://")) return false;
-  try {
-    const url = new URL(value);
-    return url.searchParams.has("X-Amz-Signature");
-  } catch {
-    return false;
-  }
-}
-
-/** Default purple gradient with optional cover image; gradient stays if URL missing or image errors. */
-function ModuleCardTopMedia({ iconSrc }: { iconSrc: string }) {
-  const [coverFailed, setCoverFailed] = useState(false);
-  const tryCover =
-    Boolean(iconSrc.trim()) && isLikelyImageUrl(iconSrc) && !coverFailed;
-
-  return (
-    <div className="relative h-36 w-full overflow-hidden">
-      <div
-        className={cn(
-          "absolute inset-0 bg-gradient-to-b opacity-90 transition-transform duration-700",
-          MODULE_CARD_GRADIENT,
-        )}
-      />
-      {tryCover ? (
-        <img
-          src={iconSrc.trim()}
-          alt=""
-          className="absolute inset-0 h-full w-full object-cover"
-          onError={() => setCoverFailed(true)}
-        />
-      ) : null}
-    </div>
-  );
-}
-
-/** Circular module icon: image when load succeeds, otherwise default Layers icon. */
-function ModuleIconCircle({
-  iconSrc,
-  index,
-}: {
-  iconSrc: string;
-  index: number;
-}) {
-  const [imgFailed, setImgFailed] = useState(false);
-  const showImg =
-    Boolean(iconSrc.trim()) && isLikelyImageUrl(iconSrc) && !imgFailed;
-
-  return (
-    <div
-      className={cn(
-        "flex h-12 w-12 flex-shrink-0 items-center justify-center overflow-hidden rounded-full border border-purple-100/50 p-2",
-        index % 2 === 1 ? "bg-[#F8FAFC]" : "bg-[#f3e8ff]",
-      )}
-    >
-      {showImg ? (
-        <img
-          src={iconSrc.trim()}
-          alt=""
-          className="h-full w-full object-contain"
-          onError={() => setImgFailed(true)}
-        />
-      ) : (
-        <Layers
-          className={cn(
-            "h-6 w-6",
-            index % 2 === 1 ? "text-[#64748B]" : "text-brand-500",
-          )}
-        />
-      )}
-    </div>
-  );
-}
-
-export function CourseDetailPage() {
-  const navigate = useNavigate();
-  const { level: programIdParam, courseId: courseIdParam } = useParams<{
-    level: string;
-    courseId: string;
-  }>();
-  const programId = Number(programIdParam);
-  const courseIdNum = Number(courseIdParam);
-
-  const [course, setCourse] = useState<ProgramCourseListItem | null>(null);
-  const [modules, setModules] = useState<TopLevelCourseModuleItem[]>([]);
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState<string | null>(null);
-  const [isAddModuleOpen, setIsAddModuleOpen] = useState(false);
-
-  const [editingModule, setEditingModule] =
-    useState<TopLevelCourseModuleItem | null>(null);
-  const [editModuleName, setEditModuleName] = useState("");
-  const [editModuleDescription, setEditModuleDescription] = useState("");
-  const [editModuleIcon, setEditModuleIcon] = useState("");
-  const [editModuleIconUploadBusy, setEditModuleIconUploadBusy] =
-    useState(false);
-  const [savingModuleEdit, setSavingModuleEdit] = useState(false);
-
-  const [deletingModule, setDeletingModule] =
-    useState<TopLevelCourseModuleItem | null>(null);
-  const [deletingModuleInFlight, setDeletingModuleInFlight] = useState(false);
-
-  const openEditModule = (module: TopLevelCourseModuleItem) => {
-    setEditingModule(module);
-    setEditModuleName(module.name ?? "");
-    setEditModuleDescription(module.description ?? "");
-    setEditModuleIcon(module.icon?.trim() ?? "");
-    setEditModuleIconUploadBusy(false);
-  };
-
-  const closeEditModule = () => {
-    if (savingModuleEdit || editModuleIconUploadBusy) return;
-    setEditingModule(null);
-    setEditModuleIconUploadBusy(false);
-  };
-
-  const loadPage = useCallback(async () => {
-    if (!Number.isFinite(programId) || programId < 1) {
-      setError("Invalid program");
-      setCourse(null);
-      setModules([]);
-      setLoading(false);
-      return;
-    }
-    if (!Number.isFinite(courseIdNum) || courseIdNum < 1) {
-      setError("Invalid course");
-      setCourse(null);
-      setModules([]);
-      setLoading(false);
-      return;
-    }
-    setLoading(true);
-    setError(null);
-    try {
-      const [courseOutcome, modulesOutcome] = await Promise.allSettled([
-        getProgramCourses(programId, { limit: 200, offset: 0 }),
-        getTopLevelCourseModules(courseIdNum, { limit: 100, offset: 0 }),
-      ]);
-
-      if (courseOutcome.status === "fulfilled") {
-        const raw = courseOutcome.value.data?.data?.courses;
-        const list = Array.isArray(raw) ? raw : [];
-        const found = list.find((c) => c.id === courseIdNum) ?? null;
-        setCourse(found);
-        if (!found) {
-          setError("Course not found in this program");
-        }
-      } else {
-        console.error(courseOutcome.reason);
-        setCourse(null);
-        setError("Failed to load course");
-      }
-
-      if (modulesOutcome.status === "fulfilled") {
-        const raw = modulesOutcome.value.data?.data?.modules;
-        const list = Array.isArray(raw) ? raw : [];
-        const refreshed = await Promise.all(
-          list.map(async (module) => {
-            const icon = module.icon?.trim() ?? "";
-            if (!icon) return module;
-            try {
-              if (isSignedMinioUrl(icon)) {
-                const refreshedRes = await refreshFileUrl(icon);
-                const refreshedUrl = refreshedRes.data?.data?.url?.trim();
-                if (refreshedUrl) {
-                  return { ...module, icon: refreshedUrl };
-                }
-                return module;
-              }
-              if (isLikelyImageUrl(icon)) return module;
-              const resolved = await resolveFileUrl(icon);
-              const freshUrl = resolved.data?.data?.url?.trim();
-              if (!freshUrl) return module;
-              return { ...module, icon: freshUrl };
-            } catch {
-              return module;
-            }
-          }),
-        );
-        const sorted = [...refreshed].sort(
-          (a, b) => (a.sort_order ?? 0) - (b.sort_order ?? 0),
-        );
-        setModules(sorted);
-      } else {
-        console.error(modulesOutcome.reason);
-        setModules([]);
-        toast.error("Could not load modules", {
-          description: "Check your connection or try again.",
-        });
-      }
-    } catch (e) {
-      console.error(e);
-      setError("Failed to load course");
-      setCourse(null);
-      setModules([]);
-      toast.error("Could not load course", {
-        description: "Check your connection or try again.",
-      });
-    } finally {
-      setLoading(false);
-    }
-  }, [programId, courseIdNum]);
-
-  useEffect(() => {
-    void loadPage();
-  }, [loadPage]);
-
-  const handleSaveModuleEdit = async () => {
-    if (!editingModule) return;
-    const name = editModuleName.trim();
-    if (!name) {
-      toast.error("Module name is required");
-      return;
-    }
-    setSavingModuleEdit(true);
-    try {
-      await updateTopLevelCourseModule(editingModule.id, {
-        name,
-        description: editModuleDescription.trim(),
-        icon: editModuleIcon.trim(),
-      });
-      toast.success("Module updated");
-      setEditModuleIconUploadBusy(false);
-      setEditingModule(null);
-      await loadPage();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to update module";
-      toast.error(msg);
-    } finally {
-      setSavingModuleEdit(false);
-    }
-  };
-
-  const handleConfirmDeleteModule = async () => {
-    if (!deletingModule) return;
-    setDeletingModuleInFlight(true);
-    try {
-      await deleteTopLevelCourseModule(deletingModule.id);
-      toast.success("Module deleted");
-      setDeletingModule(null);
-      await loadPage();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to delete module";
-      toast.error(msg);
-    } finally {
-      setDeletingModuleInFlight(false);
-    }
-  };
-
-  const displayTitle =
-    course?.name?.trim() || courseIdParam || "Course";
-  const displayDescription =
-    course?.description?.trim() ||
-    (!loading && !course
-      ? "This course could not be loaded."
-      : !course?.description?.trim() && course
-        ? "—"
-        : "");
-
-  return (
-    <div className="space-y-10 pb-20 pt-10">
-      {/* Header Navigation */}
-      <div className="flex items-center gap-2">
-        <Link
-          to={`/new-content/learn-english/${programIdParam}/courses`}
-          className="flex items-center gap-2 text-sm font-medium text-grayScale-600 transition-colors hover:text-brand-500"
-        >
-          <ArrowLeft className="h-5 w-5" />
-          Back to Courses
-        </Link>
-      </div>
-
-      {loading ? (
-        <div className="flex flex-col items-center justify-center py-16">
-          <img src={spinnerSrc} alt="" className="h-10 w-10 animate-spin" />
-        </div>
-      ) : error && !course ? (
-        <div className="flex flex-col items-center justify-center rounded-xl border border-red-100 bg-red-50/60 px-6 py-14 text-center">
-          <img src={alertSrc} alt="" className="h-10 w-10" />
-          <p className="mt-3 text-sm font-medium text-red-700">{error}</p>
-          <Button
-            type="button"
-            variant="outline"
-            className="mt-4"
-            onClick={() => void loadPage()}
-          >
-            Try again
-          </Button>
-        </div>
-      </div>
-    
-
-      <AddModuleModal
-        isOpen={isAddModuleOpen}
-        onClose={() => setIsAddModuleOpen(false)}
-      />
-      {/* Gradient Divider */}
-
-      {/* Gradient Grid */}
-      <div className="flex flex-warp gap-10">
-        {MODULES.map((module) => (
-          <Card
-            key={module.id}
-            className="group overflow-hidden border w-[330px] border-grayScale-50 shadow-sm hover:shadow-lg transition-all duration-300 rounded-[16px] bg-white flex flex-col h-full"
-          >
-            {/* Gradient Banner */}
-            <div
-              className="absolute inset-0 flex items-center"
-              aria-hidden="true"
-            >
-              <div className="w-full border-t border-grayScale-200" />
-            </div>
-            <div className="relative flex justify-center">
-              <div
-                className="h-[0.5px] w-full rounded-full opacity-20"
-                style={{
-                  background: "gray",
-                }}
-              />
-            </div>
-          </div>
-
-          <AddModuleModal
-            isOpen={isAddModuleOpen}
-            onClose={() => setIsAddModuleOpen(false)}
-            courseId={courseIdNum}
-            onCreated={() => loadPage()}
-          />
-
-          <Dialog
-            open={editingModule !== null}
-            onOpenChange={(open) => {
-              if (!open && savingModuleEdit) return;
-              if (!open && editModuleIconUploadBusy) return;
-              if (!open) closeEditModule();
-            }}
-          >
-            <DialogContent className="max-w-lg">
-              <DialogHeader>
-                <DialogTitle>Edit module</DialogTitle>
-                <DialogDescription>
-                  Update name, description, and icon (upload or URL). Saved with{" "}
-                  <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px]">
-                    PUT /modules/:id
-                  </code>
-                  .
-                </DialogDescription>
-              </DialogHeader>
-              <div className="grid gap-4 py-2">
-                <div className="space-y-2">
-                  <label className="text-sm font-medium text-grayScale-700">
-                    Name
-                  </label>
-                  <Input
-                    value={editModuleName}
-                    onChange={(e) => setEditModuleName(e.target.value)}
-                    className="rounded-xl"
-                    placeholder="e.g. Grammar basics"
-                    disabled={savingModuleEdit}
-                  />
-                </div>
-                <div className="space-y-2">
-                  <label className="text-sm font-medium text-grayScale-700">
-                    Description
-                  </label>
-                  <Textarea
-                    value={editModuleDescription}
-                    onChange={(e) => setEditModuleDescription(e.target.value)}
-                    rows={4}
-                    className="min-h-[100px] resize-y rounded-xl"
-                    placeholder="Optional short description."
-                    disabled={savingModuleEdit}
-                  />
-                </div>
-                <ModuleIconUploadField
-                  value={editModuleIcon}
-                  onChange={setEditModuleIcon}
-                  disabled={savingModuleEdit}
-                  onUploadBusyChange={setEditModuleIconUploadBusy}
-                />
-              </div>
-              <DialogFooter className="gap-2 sm:gap-0">
-                <Button
-                  type="button"
-                  variant="outline"
-                  onClick={closeEditModule}
-                  disabled={savingModuleEdit || editModuleIconUploadBusy}
-                >
-                  Cancel
-                </Button>
-                <Button
-                  type="button"
-                  className="bg-brand-500 hover:bg-brand-600"
-                  disabled={savingModuleEdit || editModuleIconUploadBusy}
-                  onClick={() => void handleSaveModuleEdit()}
-                >
-                  {savingModuleEdit ? "Saving…" : "Save changes"}
-                </Button>
-              </DialogFooter>
-            </DialogContent>
-          </Dialog>
-
-          {modules.length === 0 ? (
-            <div className="rounded-xl border border-dashed border-grayScale-200 bg-grayScale-50/50 px-6 py-14 text-center">
-              <p className="text-sm font-medium text-grayScale-600">
-                No modules in this course yet
-              </p>
-              <p className="mt-1 text-sm text-grayScale-400">
-                Add modules when your workflow is connected, or create them via
-                the API.
-              </p>
-            </div>
-          ) : (
-            <div
-              className="grid justify-start gap-10"
-              style={{
-                gridTemplateColumns: "repeat(auto-fill, minmax(330px, 330px))",
-              }}
-            >
-              {modules.map((module, index) => {
-                const iconSrc = module.icon?.trim() ?? "";
-                return (
-                  <Card
-                    key={module.id}
-                    className="group relative flex h-full min-h-0 w-full flex-col overflow-hidden rounded-[16px] border border-grayScale-50 bg-white shadow-sm transition-all duration-300 hover:shadow-lg"
-                  >
-                    <div
-                      className="absolute right-2 top-2 z-10 flex translate-y-1 gap-1 opacity-0 pointer-events-none transition-all duration-300 ease-out group-hover:translate-y-0 group-hover:opacity-100 group-hover:pointer-events-auto"
-                    >
-                      <Button
-                        type="button"
-                        variant="secondary"
-                        size="icon"
-                        className="h-8 w-8 rounded-md bg-white/95 text-grayScale-600 shadow-sm transition-colors hover:bg-white"
-                        aria-label={`Edit ${module.name}`}
-                        onClick={() => openEditModule(module)}
-                      >
-                        <Pencil className="h-3.5 w-3.5" />
-                      </Button>
-                      <Button
-                        type="button"
-                        variant="secondary"
-                        size="icon"
-                        className="h-8 w-8 rounded-md bg-white/95 text-red-600 shadow-sm transition-colors hover:bg-red-50"
-                        aria-label={`Delete ${module.name}`}
-                        onClick={() => setDeletingModule(module)}
-                      >
-                        <Trash2 className="h-3.5 w-3.5" />
-                      </Button>
-                    </div>
-                    <ModuleCardTopMedia iconSrc={iconSrc} />
-
-                    <div className="flex min-h-0 flex-1 flex-col gap-6 p-2 pb-4 pt-4">
-                      <div className="flex min-h-0 flex-1 gap-4">
-                        <ModuleIconCircle iconSrc={iconSrc} index={index} />
-
-                        <div className="min-w-0 flex-1 space-y-1">
-                          <h3 className="text-lg font-bold tracking-tight text-[#0F172A]">
-                            {module.name}
-                          </h3>
-                          <p className="text-[12px] font-medium leading-snug text-grayScale-400">
-                            {module.description?.trim() ? module.description : "—"}
-                          </p>
-                        </div>
-                      </div>
-
-                      <div className="mt-auto flex shrink-0 items-center gap-3">
-                        <Button
-                          variant="outline"
-                          className="h-10 flex-1 rounded-[6px] border-[#9E2891] text-sm text-[#9E2891] transition-all"
-                          onClick={() =>
-                            navigate(
-                              `/new-content/learn-english/${programIdParam}/courses/${courseIdParam}/modules/${module.id}`,
-                              {
-                                state: {
-                                  moduleName: module.name,
-                                  moduleDescription: module.description?.trim() ?? "",
-                                },
-                              },
-                            )
-                          }
-                        >
-                          View Detail
-                        </Button>
-                        <Button className="h-10 flex-1 rounded-[6px] bg-brand-500 text-sm text-white shadow-md shadow-brand-500/10">
-                          Publish Practice
-                        </Button>
-                      </div>
-                    </div>
-                  </Card>
-                );
-              })}
-            </div>
-          )}
-
-          {deletingModule && (
-            <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 backdrop-blur-sm">
-              <div className="mx-4 w-full max-w-sm animate-in fade-in zoom-in-95 rounded-2xl bg-white shadow-2xl">
-                <div className="flex items-center justify-between border-b border-grayScale-100 px-6 py-5">
-                  <h2 className="text-lg font-bold text-grayScale-700">
-                    Delete module
-                  </h2>
-                  <button
-                    type="button"
-                    onClick={() =>
-                      !deletingModuleInFlight && setDeletingModule(null)
-                    }
-                    disabled={deletingModuleInFlight}
-                    className="grid h-8 w-8 place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-grayScale-100 hover:text-grayScale-600 disabled:pointer-events-none disabled:opacity-50"
-                  >
-                    <X className="h-5 w-5" />
-                  </button>
-                </div>
-
-                <div className="px-6 py-6">
-                  <div className="mx-auto mb-4 grid h-12 w-12 place-items-center rounded-full bg-red-50">
-                    <Trash2 className="h-5 w-5 text-red-500" />
-                  </div>
-                  <p className="text-center text-sm leading-relaxed text-grayScale-600">
-                    Are you sure you want to delete{" "}
-                    <span className="font-semibold text-grayScale-700">
-                      {deletingModule.name}
-                    </span>
-                    ? This cannot be undone. Related content may be affected
-                    depending on your backend.
-                  </p>
-                </div>
-
-                <div className="flex flex-col-reverse gap-3 border-t border-grayScale-100 px-6 py-4 sm:flex-row sm:justify-end">
-                  <Button
-                    type="button"
-                    variant="outline"
-                    onClick={() => setDeletingModule(null)}
-                    disabled={deletingModuleInFlight}
-                    className="w-full sm:w-auto"
-                  >
-                    Cancel
-                  </Button>
-                  <Button
-                    type="button"
-                    className="w-full bg-red-500 shadow-sm transition-all hover:bg-red-600 hover:shadow-md sm:w-auto"
-                    disabled={deletingModuleInFlight}
-                    onClick={() => void handleConfirmDeleteModule()}
-                  >
-                    {deletingModuleInFlight ? "Deleting…" : "Delete"}
-                  </Button>
-                </div>
-              </div>
-            </div>
-          )}
-        </>
-      )}
-    </div>
-  );
-}

src/pages/content-management/CourseFlowBuilderPage.tsx

@@ -1,5 +1,6 @@
 import { useEffect, useMemo, useState } from "react"
 import {
+  BadgeCheck,
   ChevronDown,
   ChevronRight,
   GripVertical,
@@ -31,9 +32,9 @@ import { Badge } from "../../components/ui/badge"
 import {
   getCourseCategories,
   getCoursesByCategory,
-  getSubModulesByCourse,
+  getLearningPath,
-  getVideosBySubModule,
   getQuestionSetsByOwner,
+  getSubModuleEntryAssessment,
   reorderCategories,
   reorderCourses,
   reorderSubModules,
@@ -193,7 +194,9 @@ export function CourseFlowBuilderPage() {
   const [practicesBySubCourse, setPracticesBySubCourse] = useState<Record<number, PracticeListItem[]>>(
     {},
   )
-  const [videosBySubCourse, setVideosBySubCourse] = useState<Record<number, LearningPathVideo[]>>({})
+  const [entryAssessmentBySubCourse, setEntryAssessmentBySubCourse] = useState<Record<number, QuestionSet | null>>(
+    {},
+  )
 
   const [loading, setLoading] = useState(true)
   const [loadingCourses, setLoadingCourses] = useState(false)
@@ -257,9 +260,7 @@ export function CourseFlowBuilderPage() {
       setLoadingCourses(true)
       try {
         const res = await getCoursesByCategory(selectedCategoryId)
-        const items = sortByDisplayOrder(
+        const items = sortByDisplayOrder(res.data.data.courses ?? [])
-          (res.data.data.courses ?? []).filter((course) => Number(course.category_id) === Number(selectedCategoryId)),
-        )
         setCoursesByCategory((prev) => ({ ...prev, [selectedCategoryId]: items }))
         setSelectedCourseId(items[0]?.id ?? null)
       } catch {
@@ -279,94 +280,47 @@ export function CourseFlowBuilderPage() {
     const load = async () => {
       setLoadingPath(true)
       try {
-        const selectedCourse = activeCourses.find((course) => course.id === selectedCourseId)
+        const res = await getLearningPath(selectedCourseId)
-        const subRes = await getSubModulesByCourse(selectedCourseId)
+        const path = res.data.data
-        const subCourses = sortByDisplayOrder((subRes.data.data.sub_courses ?? []) as any[]).map((sc) => ({
-          id: sc.id,
-          title: sc.title,
-          description: sc.description ?? "",
-          thumbnail: sc.thumbnail ?? "",
-          display_order: sc.display_order ?? 0,
-          level: sc.level ?? sc.cefr_level ?? "",
-          sub_level: sc.sub_level ?? "",
-          prerequisite_count: 0,
-          video_count: 0,
-          practice_count: 0,
-          prerequisites: [],
-          videos: [],
-          practices: [],
-        }))
-
         setLearningPath({
-          course_id: selectedCourseId,
+          ...path,
-          course_title: selectedCourse?.title ?? "",
+          sub_courses: sortByDisplayOrder(path.sub_courses ?? []),
-          description: selectedCourse?.description ?? "",
-          thumbnail: selectedCourse?.thumbnail ?? "",
-          intro_video_url: "",
-          category_id: selectedCategoryId ?? 0,
-          category_name: topLevelCategories.find((cat) => cat.id === selectedCategoryId)?.name ?? "",
-          sub_courses: subCourses,
         })
 
-        if (subCourses.length === 0) {
+        // Practices source of truth: question sets by SUB_COURSE owner.
-          setPracticesBySubCourse({})
+        const subCourses = path.sub_courses ?? []
-          setVideosBySubCourse({})
+        if (subCourses.length > 0) {
-          return
+          const ownerResults = await Promise.all(
-        }
-
-        const [ownerResults, videoResults] = await Promise.all([
-          Promise.all(
             subCourses.map(async (sc) => {
-              const setsRes = await getQuestionSetsByOwner("SUB_MODULE", sc.id)
+              const setsRes = await getQuestionSetsByOwner("SUB_COURSE", sc.id)
               return [sc.id, mapPracticeSetsToPracticeItems((setsRes.data.data ?? []) as QuestionSet[])] as const
             }),
-          ),
+          )
-          Promise.all(
+          const practiceMap: Record<number, PracticeListItem[]> = {}
-            subCourses.map(async (sc) => {
+          ownerResults.forEach(([subCourseId, practiceItems]) => {
-              const videosRes = await getVideosBySubModule(sc.id)
+            practiceMap[subCourseId] = practiceItems
-              const rows = videosRes.data?.data?.videos ?? []
+          })
-              const mapped = sortByDisplayOrder(
+          setPracticesBySubCourse(practiceMap)
-                rows.map((video: any, idx: number) => ({
+        } else {
-                  id: Number(video.id),
+          setPracticesBySubCourse({})
-                  title: String(video.title ?? "Video"),
+        }
-                  display_order: Number(video.display_order ?? idx),
-                  duration: Number(video.duration ?? 0),
-                  video_url: String(video.video_url ?? ""),
-                })),
-              )
-              return [sc.id, mapped] as const
-            }),
-          ),
-        ])
-
-        const practiceMap: Record<number, PracticeListItem[]> = {}
-        ownerResults.forEach(([subCourseId, practiceItems]) => {
-          practiceMap[subCourseId] = practiceItems
-        })
-        setPracticesBySubCourse(practiceMap)
-
-        const videoMap: Record<number, LearningPathVideo[]> = {}
-        videoResults.forEach(([subCourseId, videos]) => {
-          videoMap[subCourseId] = videos
-        })
-        setVideosBySubCourse(videoMap)
       } catch {
-        toast.error("Failed to load course flow detail.")
+        toast.error("Failed to load course sub-category learning path.")
         setLearningPath(null)
       } finally {
         setLoadingPath(false)
       }
     }
     load()
-  }, [selectedCourseId, activeCourses, selectedCategoryId, topLevelCategories])
+  }, [selectedCourseId])
 
   const loadSubCoursePracticeAndEntry = async (subCourseId: number) => {
-    if (practicesBySubCourse[subCourseId] && videosBySubCourse[subCourseId]) return
+    if (practicesBySubCourse[subCourseId] && entryAssessmentBySubCourse[subCourseId] !== undefined) return
     setLoadingPracticesBySubCourse((prev) => ({ ...prev, [subCourseId]: true }))
     try {
-      const [setsRes, videosRes] = await Promise.allSettled([
+      const [setsRes, entryRes] = await Promise.allSettled([
-        getQuestionSetsByOwner("SUB_MODULE", subCourseId),
+        getQuestionSetsByOwner("SUB_COURSE", subCourseId),
-        getVideosBySubModule(subCourseId),
+        getSubModuleEntryAssessment(subCourseId),
       ])
 
       // No practice sets is a valid empty-state scenario; do not toast for 404/empty.
@@ -385,21 +339,20 @@ export function CourseFlowBuilderPage() {
         [subCourseId]: mapPracticeSetsToPracticeItems(ownerSets),
       }))
 
-      const videos =
+      // Entry assessment may legitimately be absent.
-        videosRes.status === "fulfilled"
+      let entryAssessment: QuestionSet | null = null
-          ? sortByDisplayOrder(
+      if (entryRes.status === "fulfilled") {
-              (videosRes.value.data?.data?.videos ?? []).map((video: any, idx: number) => ({
+        entryAssessment = (entryRes.value.data.data ?? null) as QuestionSet | null
-                id: Number(video.id),
+      } else {
-                title: String(video.title ?? "Video"),
+        const status = entryRes.reason?.response?.status
-                display_order: Number(video.display_order ?? idx),
+        if (status !== 404) {
-                duration: Number(video.duration ?? 0),
+          throw entryRes.reason
-                video_url: String(video.video_url ?? ""),
+        }
-              })),
+      }
-            )
+
-          : []
+      setEntryAssessmentBySubCourse((prev) => ({
-      setVideosBySubCourse((prev) => ({
         ...prev,
-        [subCourseId]: videos,
+        [subCourseId]: entryAssessment,
       }))
     } catch {
       toast.error("Failed to load practice sets for course.")
@@ -741,7 +694,6 @@ export function CourseFlowBuilderPage() {
                     {learningPath.sub_courses.map((subCourse) => {
                       const expanded = expandedSubCourseIds.has(subCourse.id)
                       const practices = practicesBySubCourse[subCourse.id] ?? []
-                      const videos = videosBySubCourse[subCourse.id] ?? subCourse.videos ?? []
                       return (
                         <SortableRow key={subCourse.id} id={subCourse.id}>
                           <button
@@ -771,12 +723,17 @@ export function CourseFlowBuilderPage() {
                                     {subCourse.sub_level}
                                   </Badge>
                                 )}
-                                {/* entry-assessment route is no longer guaranteed across deployments */}
+                                {entryAssessmentBySubCourse[subCourse.id] && (
+                                  <span className="inline-flex items-center gap-1 text-emerald-600">
+                                    <BadgeCheck className="h-3.5 w-3.5" />
+                                    Entry assessment
+                                  </span>
+                                )}
                               </p>
                             </div>
                             <div className="flex w-full items-center justify-between gap-2 sm:w-auto sm:justify-end">
                               <Badge variant="secondary" className="text-[10px]">
-                                {videos.length} videos / {practices.length} practices
+                                {subCourse.videos.length} videos / {practices.length || subCourse.practice_count} practices
                               </Badge>
                               {expanded ? (
                                 <ChevronDown className="h-4 w-4 text-grayScale-400" />
@@ -798,16 +755,16 @@ export function CourseFlowBuilderPage() {
                                   onDragEnd={(event) => onVideosDragEnd(subCourse.id, event)}
                                 >
                                   <SortableContext
-                                    items={videos.map((item) => item.id)}
+                                    items={subCourse.videos.map((item) => item.id)}
                                     strategy={verticalListSortingStrategy}
                                   >
                                     <div className="space-y-1.5">
-                                      {videos.length === 0 ? (
+                                      {subCourse.videos.length === 0 ? (
                                         <p className="rounded-lg border border-dashed border-grayScale-200 px-2 py-2 text-[11px] text-grayScale-400">
                                           No videos
                                         </p>
                                       ) : (
-                                        videos.map((video) => (
+                                        subCourse.videos.map((video) => (
                                           <SortableChip
                                             key={video.id}
                                             id={video.id}
@@ -885,7 +842,7 @@ export function CourseFlowBuilderPage() {
           </p>
           <p>
             Practices load from <code>/question-sets/by-owner</code> filtered by
-            <code> set_type=PRACTICE</code> and <code>owner_type=SUB_MODULE</code>.
+            <code> set_type=PRACTICE</code>; entry assessment loads from dedicated course endpoint.
           </p>
         </CardContent>
       </Card>

src/pages/content-management/CourseManagementPage.tsx

@@ -1,264 +0,0 @@
-import { Link, useParams, useNavigate } from "react-router-dom";
-import {
-  ArrowLeft,
-  Plus,
-  FileText,
-  LayoutGrid,
-  PlayCircle,
-  ClipboardCheck,
-  ChevronRight,
-  ArrowRight,
-  X,
-} from "lucide-react";
-import { Button } from "../../components/ui/button";
-import { Card } from "../../components/ui/card";
-import {
-  Dialog,
-  DialogContent,
-  DialogHeader,
-  DialogTitle,
-  DialogTrigger,
-  DialogClose,
-} from "../../components/ui/dialog";
-import { Input } from "../../components/ui/input";
-import uploadIcon from "../../assets/icons/upload.png";
-
-export function CourseManagementPage() {
-  const navigate = useNavigate();
-  const { programType, courseId } = useParams<{
-    programType: string;
-    courseId: string;
-  }>();
-
-  // Mock data for display titles
-  const courseTitles: Record<string, string> = {
-    duolingo: "Duolingo English Test",
-    ielts: "IELTS Academic",
-  };
-
-  const courseDisplayName =
-    courseTitles[courseId || ""] || "Duolingo English Test";
-
-  const units = [
-    {
-      id: "unit1",
-      name: "Greetings & Introductions",
-      description:
-        "Learn basic greetings, self-introductions, and polite expressions in everyday situations.",
-      modules: 3,
-      videos: 9,
-      practices: 9,
-      gradient:
-        "linear-gradient(135deg, rgba(158, 40, 145, 0.5) 0%, rgba(158, 40, 145, 0.8) 100%)",
-    },
-    {
-      id: "unit2",
-      name: "Speaking",
-      description:
-        "Core speaking practice and skill building for natural pronunciation and fluency.",
-      modules: 3,
-      videos: 9,
-      practices: 9,
-      gradient:
-        "linear-gradient(135deg, rgba(79, 70, 229, 0.5) 0%, rgba(79, 70, 229, 0.8) 100%)",
-    },
-    {
-      id: "unit3",
-      name: "Reading",
-      description:
-        "Reading comprehension and vocabulary improvement through various text types.",
-      modules: 3,
-      videos: 9,
-      practices: 9,
-      gradient:
-        "linear-gradient(135deg, rgba(124, 58, 237, 0.5) 0%, rgba(124, 58, 237, 0.8) 100%)",
-    },
-  ];
-
-  return (
-    <div className="space-y-8 animate-in fade-in duration-500 pb-10">
-      {/* Navigation */}
-      <Link
-        to={`/new-content/courses/${programType}`}
-        className="flex items-center gap-2.5 text-[15px] font-semibold text-grayScale-600 hover:text-brand-500 transition-colors pt-4 group"
-      >
-        <ArrowLeft className="h-5 w-5 transition-transform group-hover:-translate-x-1" />
-        Back to Courses
-      </Link>
-
-      {/* Header section */}
-      <div className="flex items-start justify-between">
-        <div className="space-y-2">
-          <h1 className="text-[28px] font-medium tracking-tight text-grayScale-900">
-            {courseDisplayName}
-          </h1>
-          <p className="max-w-2xl text-[15px] font-medium leading-relaxed text-grayScale-500">
-            Manage units and modules inside the {courseDisplayName}
-          </p>
-        </div>
-
-        <div className="flex items-center gap-3 pt-2">
-          <Dialog>
-            <DialogTrigger asChild>
-              <Button className="h-10 px-6 rounded-[6px] bg-brand-500 font-bold text-white shadow-sm hover:bg-brand-600 transition-all flex items-center gap-2">
-                <Plus className="h-5 w-5" />
-                Add Unit
-              </Button>
-            </DialogTrigger>
-            <DialogContent className="max-w-[600px] p-0 border-none rounded-[16px] overflow-hidden">
-              <div className="bg-white">
-                <DialogHeader className="px-8 py-6 border-b border-grayScale-200 flex flex-row items-center justify-between">
-                  <DialogTitle className="text-[20px] font-bold relative top-2 text-grayScale-900">
-                    Create Courses
-                  </DialogTitle>
-                </DialogHeader>
-
-                <div className="p-8 space-y-8">
-                  <div className="space-y-3">
-                    <label className="text-[15px] text-grayScale-800">
-                      Unit Name
-                    </label>
-                    <Input
-                      placeholder="e.g. Reading"
-                      className="h-12 border-grayScale-400 rounded-[8px] px-4 placeholder:text-grayScale-400 text-[15px] focus:ring-brand-500/20"
-                    />
-                  </div>
-
-                  <div className="space-y-3">
-                    <label className="text-[15px] text-grayScale-800">
-                      Thumbnail
-                    </label>
-                    <div className="relative group cursor-pointer">
-                      <div className="flex flex-col items-center justify-center rounded-[12px] border-2 border-dashed border-grayScale-400 bg-white py-8 px-10 transition-all ">
-                        <div className="mb-4">
-                          <img
-                            src={uploadIcon}
-                            alt="Upload icon"
-                            className="h-10 w-10"
-                          />
-                        </div>
-                        <p className="text-[15px]">
-                          <span className="text-brand-500 font-bold hover:underline">
-                            Click to upload
-                          </span>{" "}
-                          <span className="text-grayScale-500">
-                            or drag and drop
-                          </span>
-                        </p>
-                        <p className="mt-1.5 text-[12px] text-grayScale-400 uppercase tracking-widest">
-                          JPG, PNG (MAX 1 MB)
-                        </p>
-                      </div>
-                    </div>
-                  </div>
-                </div>
-
-                <div className="px-8 py-6 bg-grayScale-50/30 border-t border-grayScale-50 flex justify-end gap-3">
-                  <DialogClose asChild>
-                    <Button
-                      variant="outline"
-                      className="h-11 px-8 rounded-[8px] border-grayScale-200 text-grayScale-700 font-bold"
-                    >
-                      Cancel
-                    </Button>
-                  </DialogClose>
-                  <Button className="h-11 px-8 rounded-[8px] bg-brand-500 text-white font-bold hover:bg-brand-600">
-                    Create Courses
-                  </Button>
-                </div>
-              </div>
-            </DialogContent>
-          </Dialog>
-
-          <Button
-            variant="outline"
-            className="h-10 px-6 rounded-[6px] border-brand-500 text-brand-500 font-bold hover:bg-brand-50 transition-all flex items-center gap-2"
-            onClick={() =>
-              navigate(`/new-content/courses/${programType}/attach-practice`)
-            }
-          >
-            <FileText className="h-5 w-5" />
-            Attach Practice
-          </Button>
-        </div>
-      </div>
-
-      {/* Horizontal Divider */}
-      <div className="relative">
-        <div className="absolute inset-0 flex items-center" aria-hidden="true">
-          <div className="w-full border-t border-grayScale-200" />
-        </div>
-        <div className="relative flex justify-center">
-          <div
-            className="h-[0.5px] w-full opacity-20 rounded-full"
-            style={{
-              background: "gray",
-            }}
-          />
-        </div>
-      </div>
-
-      {/* Grid of Units */}
-      <div className="flex flex-wrap gap-4 pt-4">
-        {units.map((unit) => (
-          <Card
-            key={unit.id}
-            className="group flex w-[400px] flex-col h-full bg-white rounded-[12px] border border-grayScale-100 overflow-hidden shadow-sm hover:shadow-md transition-all"
-          >
-            {/* Gradient Header */}
-            <div
-              className="h-36 w-full transition-transform duration-500 "
-              style={{ background: unit.gradient }}
-            />
-
-            <div className="p-4 flex flex-col flex-1 space-y-6">
-              <div className="space-y-3 flex-1">
-                <h3 className="text-[18px] font-medium text-grayScale-900  transition-colors">
-                  {unit.name}
-                </h3>
-                <p className="text-[12px] text-grayScale-500 font-medium line-clamp-3">
-                  {unit.description}
-                </p>
-              </div>
-
-              {/* Stats Pills */}
-              <div className="flex flex-wrap gap-3">
-                <div className="h-9 px-3 rounded-[6px] bg-grayScale-100 border border-grayScale-100 flex items-center gap-2 text-grayScale-600">
-                  <LayoutGrid className="h-3.5 w-3.5 text-grayScale-400" />
-                  <span className="text-[12px] font-bold">
-                    {unit.modules} Modules
-                  </span>
-                </div>
-                <div className="h-9 px-3 rounded-[6px] bg-grayScale-100 border border-grayScale-100 flex items-center gap-2 text-grayScale-600">
-                  <PlayCircle className="h-3.5 w-3.5 text-grayScale-400" />
-                  <span className="text-[12px] font-bold">
-                    {unit.videos} Videos
-                  </span>
-                </div>
-                <div className="h-9 px-3 rounded-[6px] bg-grayScale-100 border border-grayScale-100 flex items-center gap-2 text-grayScale-600">
-                  <ClipboardCheck className="h-3.5 w-3.5 text-grayScale-400" />
-                  <span className="text-[12px] font-bold">
-                    {unit.practices} Practices
-                  </span>
-                </div>
-              </div>
-
-              {/* Action Button */}
-              <Button
-                className="w-full h-10 bg-brand-500  text-white rounded-[6px] font-bold flex items-center justify-center gap-2 group/btn"
-                onClick={() =>
-                  navigate(
-                    `/new-content/courses/${programType}/${courseId}/${unit.id}`,
-                  )
-                }
-              >
-                View Detail
-                <ArrowRight className="ml-2 h-4 w-4" />
-              </Button>
-            </div>
-          </Card>
-        ))}
-      </div>
-    </div>
-  );
-}

src/pages/content-management/CourseModuleDetailPage.tsx

@@ -1,248 +0,0 @@
-import { useState } from "react";
-import { ArrowLeft, Plus, FileText, MoreVertical, Edit2 } from "lucide-react";
-import { Link, useNavigate, useParams } from "react-router-dom";
-import { Button } from "../../components/ui/button";
-import { cn } from "../../lib/utils";
-import { Card } from "../../components/ui/card";
-
-const MOCK_VIDEOS = [
-  {
-    id: "v1",
-    title: "1.1 Introduction to Formal Greetings",
-    duration: "08:45",
-    status: "Draft",
-    thumbnailColor: "bg-[#CBD5E1]",
-  },
-  {
-    id: "v2",
-    title: "1.2 Understanding Email Structure",
-    duration: "08:45",
-    status: "Published",
-    thumbnailColor: "bg-[#DBEAFE]",
-  },
-  {
-    id: "v3",
-    title: "1.3 Common Business Idioms",
-    duration: "08:45",
-    status: "Published",
-    thumbnailColor: "bg-[#FEF3C7]",
-  },
-  {
-    id: "v4",
-    title: "1.4 Video Conference Etiquette",
-    duration: "08:45",
-    status: "Published",
-    thumbnailColor: "bg-[#FCE7F3]",
-  },
-];
-
-const MOCK_PRACTICES = [
-  {
-    id: "p1",
-    title: "1.1 Conversation Practice",
-    duration: "08:45",
-    status: "Published",
-    thumbnailColor: "bg-[#E0F2FE]",
-  },
-  {
-    id: "p2",
-    title: "1.2 Roleplay Scenario",
-    duration: "08:45",
-    status: "Draft",
-    thumbnailColor: "bg-[#F0FDF4]",
-  },
-];
-
-export function CourseModuleDetailPage() {
-  const navigate = useNavigate();
-  const { programType, courseId, unitId, moduleId } = useParams<{
-    programType: string;
-    courseId: string;
-    unitId: string;
-    moduleId: string;
-  }>();
-
-  const [activeTab, setActiveTab] = useState<"video" | "practice">("video");
-  const [activeFilter, setActiveFilter] = useState("All");
-
-  const moduleTitle = "Module 1: Basic Phrases";
-  const moduleDescription = "Learn essential phrases for daily conversations.";
-
-  const content = activeTab === "video" ? MOCK_VIDEOS : MOCK_PRACTICES;
-  const filteredContent = content.filter((item) => {
-    if (activeFilter === "All") return true;
-    if (activeFilter === "Drafts") return item.status === "Draft";
-    return item.status === activeFilter;
-  });
-
-  return (
-    <div className="space-y-8 animate-in fade-in duration-500 pb-10">
-      {/* Navigation */}
-      <Link
-        to={`/new-content/courses/${programType}/${courseId}/${unitId}`}
-        className="flex items-center gap-2.5 text-[15px] font-bold text-grayScale-600 hover:text-brand-500 transition-colors pt-4 group"
-      >
-        <ArrowLeft className="h-5 w-5 transition-transform group-hover:-translate-x-1" />
-        Back to Modules
-      </Link>
-
-      {/* Header section */}
-      <div className="flex items-start justify-between">
-        <div className="space-y-2">
-          <h1 className="text-[32px] font-extrabold tracking-tight text-[#0D1421]">
-            {moduleTitle}
-          </h1>
-          <p className="max-w-2xl text-[16px] font-medium leading-relaxed text-grayScale-400">
-            {moduleDescription}
-          </p>
-        </div>
-
-        <div className="flex items-center gap-3 pt-2">
-          <Button
-            variant="outline"
-            className="h-10 px-6 rounded-[6px] border-brand-500 text-brand-500 font-bold hover:bg-brand-50 transition-all flex items-center gap-2 shadow-sm"
-            onClick={() =>
-              navigate(
-                `/new-content/courses/${programType}/${courseId}/unit/${unitId}/module/${moduleId}/attach-practice`,
-              )
-            }
-          >
-            <FileText className="h-5 w-5" />
-            Attach Practice
-          </Button>
-          <Button className="h-10 px-6 rounded-[6px] bg-brand-500 font-bold text-white shadow-md hover:bg-brand-600 transition-all flex items-center gap-2 text-[15px]">
-            <Plus className="h-5 w-5" />
-            Add Video
-          </Button>
-        </div>
-      </div>
-
-      {/* Tabs */}
-      <div className="flex gap-10 border-b border-grayScale-100">
-        <button
-          onClick={() => setActiveTab("video")}
-          className={cn(
-            "pb-4 text-[16px] font-bold transition-all relative px-2",
-            activeTab === "video"
-              ? "text-brand-500 after:absolute after:bottom-0 after:left-0 after:right-0 after:h-[2px] after:bg-brand-500"
-              : "text-grayScale-400 hover:text-grayScale-600",
-          )}
-        >
-          Video
-        </button>
-        <button
-          onClick={() => setActiveTab("practice")}
-          className={cn(
-            "pb-4 text-[16px] font-bold transition-all relative px-2",
-            activeTab === "practice"
-              ? "text-brand-500 after:absolute after:bottom-0 after:left-0 after:right-0 after:h-[2px] after:bg-brand-500"
-              : "text-grayScale-400 hover:text-grayScale-600",
-          )}
-        >
-          Practice
-        </button>
-      </div>
-
-      {/* Filter Bar */}
-      <div className="bg-white border border-grayScale-100 rounded-[16px] p-4 flex items-center gap-8 shadow-sm">
-        <div className="text-[12px] font-bold text-grayScale-300 uppercase tracking-widest pl-4">
-          STATUS:
-        </div>
-        <div className="flex items-center gap-2">
-          {["All", "Published", "Drafts", "Archived"].map((filter) => (
-            <button
-              key={filter}
-              onClick={() => setActiveFilter(filter)}
-              className={cn(
-                "px-5 py-2 rounded-full text-[13px] font-bold transition-all",
-                activeFilter === filter
-                  ? "bg-brand-500 text-white shadow-md shadow-brand-500/20"
-                  : "bg-grayScale-100 text-grayScale-500 hover:bg-grayScale-200",
-              )}
-            >
-              {filter}
-            </button>
-          ))}
-        </div>
-      </div>
-
-      {/* Grid of Content */}
-      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6 pt-4">
-        {filteredContent.map((item) => (
-          <ContentCard key={item.id} {...item} />
-        ))}
-      </div>
-    </div>
-  );
-}
-
-function ContentCard({
-  title,
-  duration,
-  status,
-  thumbnailColor,
-}: {
-  title: string;
-  duration: string;
-  status: string;
-  thumbnailColor: string;
-}) {
-  return (
-    <Card className="group flex flex-col bg-white rounded-[20px] border border-grayScale-50 overflow-hidden shadow-sm hover:shadow-xl hover:shadow-grayScale-400/5 transition-all">
-      {/* Thumbnail Area */}
-      <div className={cn("h-44 w-full relative", thumbnailColor)}>
-        <div className="absolute bottom-3 right-3 bg-black/60 text-white text-[11px] font-bold px-2 py-0.5 rounded backdrop-blur-sm">
-          {duration}
-        </div>
-      </div>
-
-      <div className="p-5 flex flex-col flex-1 space-y-5">
-        <div className="flex items-center justify-between">
-          <div
-            className={cn(
-              "px-3 py-1 rounded-full text-[10px] font-bold uppercase tracking-wider flex items-center gap-2 border",
-              status === "Published"
-                ? "bg-[#F0FDF4] text-[#16A34A] border-[#DCFCE7]"
-                : "bg-grayScale-50 text-grayScale-400 border-grayScale-100",
-            )}
-          >
-            <div
-              className={cn(
-                "h-1.5 w-1.5 rounded-full",
-                status === "Published" ? "bg-[#16A34A]" : "bg-grayScale-300",
-              )}
-            />
-            {status}
-          </div>
-          <button className="h-8 w-8 rounded-lg flex items-center justify-center text-grayScale-300 hover:text-grayScale-600 transition-colors">
-            <MoreVertical className="h-5 w-5" />
-          </button>
-        </div>
-
-        <h3 className="text-[14px] font-bold text-[#0F172A] line-clamp-2 leading-snug">
-          {title}
-        </h3>
-
-        <div className="pt-2 grid grid-cols-1 gap-2 mt-auto">
-          <Button
-            variant="outline"
-            className="w-full h-10 rounded-[10px] border-grayScale-200 text-grayScale-600 font-bold flex items-center justify-center gap-2 text-xs hover:bg-grayScale-25"
-          >
-            <Edit2 className="h-4 w-4" />
-            Edit
-          </Button>
-          <Button
-            className={cn(
-              "w-full h-10 rounded-[10px] font-bold text-xs shadow-sm",
-              status === "Published"
-                ? "bg-[#ECD5E9] text-[#9E2891] hover:bg-[#EBD0E7]"
-                : "bg-brand-500 text-white hover:bg-brand-600",
-            )}
-          >
-            {status === "Published" ? "Published" : "Publish"}
-          </Button>
-        </div>
-      </div>
-    </Card>
-  );
-}

src/pages/content-management/CreateQuestionTypeFlow.tsx

@@ -1,87 +0,0 @@
-import { useState } from "react";
-import { Link, useNavigate } from "react-router-dom";
-import { ArrowLeft } from "lucide-react";
-import { Button } from "../../components/ui/button";
-import { Stepper } from "../../components/ui/stepper";
-import { QuestionTypeBasicInfoStep } from "./components/question-type-steps/QuestionTypeBasicInfoStep";
-import { QuestionTypeConfigStep } from "./components/question-type-steps/QuestionTypeConfigStep";
-
-export function CreateQuestionTypeFlow() {
-  const navigate = useNavigate();
-  const [currentStep, setCurrentStep] = useState(1);
-
-  const steps = [
-    "Basic Info",
-    "Input & Answer Configuration",
-    "Versions",
-    "Review & Publish",
-  ];
-
-  const handleNext = () =>
-    setCurrentStep((prev) => Math.min(prev + 1, steps.length));
-  const handleBack = () => setCurrentStep((prev) => Math.max(prev - 1, 1));
-
-  return (
-    <div className="min-h-screen pb-20 overflow-x-hidden">
-      {/* Header */}
-      <div className=" border-b border-grayScale-100 sticky top-0 z-50">
-        <div className="max-w-[1440px] mx-auto py-6">
-          <div className="flex items-center justify-between mb-8">
-            <Link
-              to="/new-content/question-types"
-              className="flex items-center gap-2 text-[15px] font-medium text-grayScale-600 transition-colors hover:text-brand-500 group"
-            >
-              <ArrowLeft className="h-5 w-5 transition-transform group-hover:-translate-x-1" />
-              Back to Question Type Library
-            </Link>
-          </div>
-
-          <div className="flex items-start justify-between">
-            <div className="space-y-1">
-              <h1 className="text-[28px] font-bold text-grayScale-900 tracking-tight">
-                Create Question Type
-              </h1>
-              <p className="text-grayScale-500 text-[14px] font-medium">
-                Create a new immersive practice session for students.
-              </p>
-            </div>
-            <div className="flex items-center gap-4">
-              <Button
-                variant="outline"
-                className="h-10 px-8 rounded-[6px] border-grayScale-200 text-grayScale-900 font-medium hover:bg-grayScale-50"
-                onClick={() => navigate("/new-content/question-types")}
-              >
-                Cancel
-              </Button>
-              <Button className="h-10 px-8 rounded-[6px] bg-[#9E2891] font-medium text-white shadow-lg shadow-brand-500/10 hover:bg-[#8A237E] transition-all">
-                Save as Draft
-              </Button>
-            </div>
-          </div>
-
-          <div className="mt-12 mx-auto">
-            <Stepper steps={steps} currentStep={currentStep} />
-          </div>
-        </div>
-      </div>
-
-      {/* Main Content */}
-      <div className="max-w-[1440px] mx-auto px-10 mt-12 animate-in fade-in slide-in-from-bottom-4 duration-500">
-        {currentStep === 1 && <QuestionTypeBasicInfoStep onNext={handleNext} />}
-        {currentStep === 2 && (
-          <QuestionTypeConfigStep onNext={handleNext} onBack={handleBack} />
-        )}
-        {currentStep > 2 && (
-          <div className="bg-white rounded-2xl p-12 text-center border border-grayScale-100 shadow-sm">
-            <p className="text-grayScale-400 font-medium">
-              Step {currentStep} implementation in progress...
-            </p>
-            <Button onClick={handleBack} variant="outline" className="mt-4">
-              Go Back
-            </Button>
-          </div>
-        )}
-      </div>
-    </div>
-  );
-}

src/pages/content-management/LearnEnglishPage.tsx

@@ -1,706 +0,0 @@
-import { useCallback, useEffect, useRef, useState } from "react";
-import { Plus, ArrowRight, Pencil, Trash2, X } from "lucide-react";
-import { Link } from "react-router-dom";
-import { toast } from "sonner";
-import { Card, CardContent } from "../../components/ui/card";
-import { Button } from "../../components/ui/button";
-import {
-  Dialog,
-  DialogContent,
-  DialogHeader,
-  DialogTitle,
-  DialogDescription,
-  DialogTrigger,
-  DialogFooter,
-} from "../../components/ui/dialog";
-import { Input } from "../../components/ui/input";
-import { Textarea } from "../../components/ui/textarea";
-import uploadIcon from "../../assets/icons/upload.png";
-import spinnerSrc from "../../assets/Circular-indeterminate progress indicator.svg";
-import alertSrc from "../../assets/Alert.svg";
-import {
-  getLearningPrograms,
-  createLearningProgram,
-  updateLearningProgram,
-  deleteLearningProgram,
-} from "../../api/courses.api";
-import { uploadImageFile } from "../../api/files.api";
-import type { LearningProgramListItem } from "../../types/course.types";
-
-export function LearnEnglishPage() {
-  const [programs, setPrograms] = useState<LearningProgramListItem[]>([]);
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState<string | null>(null);
-
-  const [editingProgram, setEditingProgram] =
-    useState<LearningProgramListItem | null>(null);
-  const [editName, setEditName] = useState("");
-  const [editDescription, setEditDescription] = useState("");
-  const [editThumbnail, setEditThumbnail] = useState("");
-  const [savingEdit, setSavingEdit] = useState(false);
-  const [uploadingEditThumbnail, setUploadingEditThumbnail] = useState(false);
-  const editThumbnailFileInputRef = useRef<HTMLInputElement>(null);
-
-  const [createOpen, setCreateOpen] = useState(false);
-  const [createName, setCreateName] = useState("");
-  const [createDescription, setCreateDescription] = useState("");
-  const [createThumbnail, setCreateThumbnail] = useState("");
-  const [createSaving, setCreateSaving] = useState(false);
-  const [createUploadingThumbnail, setCreateUploadingThumbnail] = useState(false);
-  const createThumbnailFileInputRef = useRef<HTMLInputElement>(null);
-
-  const [deletingProgram, setDeletingProgram] =
-    useState<LearningProgramListItem | null>(null);
-  const [deleting, setDeleting] = useState(false);
-
-  const openEdit = (program: LearningProgramListItem) => {
-    setEditingProgram(program);
-    setEditName(program.name ?? "");
-    setEditDescription(program.description?.trim() ?? "");
-    setEditThumbnail(program.thumbnail?.trim() ?? "");
-  };
-
-  const closeEdit = () => {
-    setEditingProgram(null);
-    setEditName("");
-    setEditDescription("");
-    setEditThumbnail("");
-    setUploadingEditThumbnail(false);
-    if (editThumbnailFileInputRef.current) editThumbnailFileInputRef.current.value = "";
-  };
-
-  const handleEditThumbnailFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("image/")) {
-      toast.error("Please choose an image file");
-      return;
-    }
-    const maxBytes = 5 * 1024 * 1024;
-    if (file.size > maxBytes) {
-      toast.error("Image is too large", { description: "Maximum size is 5 MB." });
-      return;
-    }
-    setUploadingEditThumbnail(true);
-    try {
-      const res = await uploadImageFile(file);
-      const url = res.data?.data?.url?.trim();
-      if (!url) {
-        throw new Error("Upload did not return a file URL");
-      }
-      setEditThumbnail(url);
-      toast.success("Thumbnail uploaded");
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail";
-      toast.error(msg);
-    } finally {
-      setUploadingEditThumbnail(false);
-    }
-  };
-
-  const clearCreateFormFields = () => {
-    setCreateName("");
-    setCreateDescription("");
-    setCreateThumbnail("");
-    if (createThumbnailFileInputRef.current) {
-      createThumbnailFileInputRef.current.value = "";
-    }
-  };
-
-  const handleCreateDialogOpenChange = (open: boolean) => {
-    if (!open && (createSaving || createUploadingThumbnail)) return;
-    clearCreateFormFields();
-    setCreateOpen(open);
-  };
-
-  const handleCreateThumbnailFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("image/")) {
-      toast.error("Please choose an image file");
-      return;
-    }
-    const maxBytes = 5 * 1024 * 1024;
-    if (file.size > maxBytes) {
-      toast.error("Image is too large", { description: "Maximum size is 5 MB." });
-      return;
-    }
-    setCreateUploadingThumbnail(true);
-    try {
-      const res = await uploadImageFile(file);
-      const url = res.data?.data?.url?.trim();
-      if (!url) {
-        throw new Error("Upload did not return a file URL");
-      }
-      setCreateThumbnail(url);
-      toast.success("Thumbnail uploaded");
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail";
-      toast.error(msg);
-    } finally {
-      setCreateUploadingThumbnail(false);
-    }
-  };
-
-  const handleCreateProgram = async () => {
-    const name = createName.trim();
-    if (!name) {
-      toast.error("Program name is required");
-      return;
-    }
-    setCreateSaving(true);
-    try {
-      await createLearningProgram({
-        name,
-        description: createDescription.trim(),
-        thumbnail: createThumbnail.trim(),
-      });
-      toast.success("Program created");
-      clearCreateFormFields();
-      setCreateOpen(false);
-      await fetchPrograms();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to create program";
-      toast.error(msg);
-    } finally {
-      setCreateSaving(false);
-    }
-  };
-
-  const handleSaveEdit = async () => {
-    if (!editingProgram) return;
-    const name = editName.trim();
-    if (!name) {
-      toast.error("Program name is required");
-      return;
-    }
-    setSavingEdit(true);
-    try {
-      await updateLearningProgram(editingProgram.id, {
-        name,
-        description: editDescription.trim(),
-        thumbnail: editThumbnail.trim(),
-      });
-      toast.success("Program updated");
-      closeEdit();
-      await fetchPrograms();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to update program";
-      toast.error(msg);
-    } finally {
-      setSavingEdit(false);
-    }
-  };
-
-  const handleConfirmDelete = async () => {
-    if (!deletingProgram) return;
-    setDeleting(true);
-    try {
-      await deleteLearningProgram(deletingProgram.id);
-      toast.success("Program deleted");
-      setDeletingProgram(null);
-      await fetchPrograms();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to delete program";
-      toast.error(msg);
-    } finally {
-      setDeleting(false);
-    }
-  };
-
-  const fetchPrograms = useCallback(async () => {
-    setLoading(true);
-    setError(null);
-    try {
-      const res = await getLearningPrograms({ limit: 100, offset: 0 });
-      const raw = res.data?.data?.programs;
-      const list = Array.isArray(raw) ? raw : [];
-      const sorted = [...list].sort(
-        (a, b) => (a.sort_order ?? 0) - (b.sort_order ?? 0),
-      );
-      setPrograms(sorted);
-    } catch (e) {
-      console.error(e);
-      setError("Failed to load programs");
-      setPrograms([]);
-      toast.error("Could not load programs", {
-        description: "Check your connection or try again.",
-      });
-    } finally {
-      setLoading(false);
-    }
-  }, []);
-
-  useEffect(() => {
-    void fetchPrograms();
-  }, [fetchPrograms]);
-
-  return (
-    <div className="space-y-8">
-      {/* Header section */}
-      <div className="flex flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
-        <div>
-          <h1 className="text-2xl font-bold tracking-tight text-grayScale-700">
-            Learn English
-          </h1>
-          <p className="mt-1 text-sm text-grayScale-500">
-            Manage learning content by program — cards load from the server
-          </p>
-        </div>
-
-        <Dialog open={createOpen} onOpenChange={handleCreateDialogOpenChange}>
-          <DialogTrigger asChild>
-            <Button className="h-11 rounded-[6px] bg-brand-500 px-6 font-semibold ">
-              <Plus className="mr-2 h-5 w-5" />
-              Add Program
-            </Button>
-          </DialogTrigger>
-          <DialogContent className="flex max-h-[min(90vh,calc(100dvh-2rem))] max-w-2xl flex-col gap-0 overflow-hidden border-none p-0">
-            <div className="shrink-0">
-              <DialogHeader className="p-8 pb-4">
-                <DialogTitle className="text-2xl font-bold text-grayScale-700">
-                  Add New Program
-                </DialogTitle>
-                <DialogDescription className="text-sm text-grayScale-400">
-                  Create a learning program via{" "}
-                  <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px] text-grayScale-600">
-                    POST /programs
-                  </code>
-                  . Thumbnail can be a URL or a file uploaded through{" "}
-                  <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px] text-grayScale-600">
-                    POST /files/upload
-                  </code>
-                  .
-                </DialogDescription>
-              </DialogHeader>
-              {/* Gradient Divider */}
-              <div className="relative">
-                <div
-                  className="absolute inset-0 flex items-center"
-                  aria-hidden="true"
-                >
-                  <div className="w-full border-t border-grayScale-200" />
-                </div>
-                <div className="relative flex justify-center">
-                  <div
-                    className="h-[0.5px] w-full opacity-20 rounded-full"
-                    style={{
-                      background: "gray",
-                    }}
-                  />
-                </div>
-              </div>
-            </div>
-
-            <form
-              className="flex min-h-0 flex-1 flex-col"
-              onSubmit={(e) => {
-                e.preventDefault();
-                void handleCreateProgram();
-              }}
-            >
-              <div className="min-h-0 flex-1 space-y-6 overflow-y-auto overscroll-contain px-8 py-4">
-                <div className="space-y-2">
-                  <label className="text-[15px] text-grayScale-700">
-                    Program Name
-                  </label>
-                  <Input
-                    value={createName}
-                    onChange={(e) => setCreateName(e.target.value)}
-                    placeholder="e.g. Intermediate Track"
-                    className="h-12 rounded-xl ring-0"
-                    disabled={createSaving || createUploadingThumbnail}
-                  />
-                </div>
-
-                <div className="space-y-2">
-                  <label className="text-[15px] text-grayScale-700">
-                    Description
-                  </label>
-                  <Textarea
-                    value={createDescription}
-                    onChange={(e) => setCreateDescription(e.target.value)}
-                    placeholder="Short summary of the program"
-                    rows={3}
-                    className="min-h-[88px] resize-y rounded-xl"
-                    disabled={createSaving || createUploadingThumbnail}
-                  />
-                </div>
-
-                <div className="space-y-2">
-                  <label className="text-[15px] text-grayScale-700">
-                    Thumbnail
-                  </label>
-                  <input
-                    ref={createThumbnailFileInputRef}
-                    type="file"
-                    accept="image/*"
-                    className="sr-only"
-                    onChange={(e) => void handleCreateThumbnailFile(e)}
-                    disabled={createSaving || createUploadingThumbnail}
-                  />
-                  <button
-                    type="button"
-                    className="relative w-full cursor-pointer rounded-2xl border-2 border-dashed border-[#9E289133] bg-white p-10 text-left transition-all hover:border-[#9E289180] disabled:cursor-not-allowed disabled:opacity-60"
-                    disabled={createSaving || createUploadingThumbnail}
-                    onClick={() => createThumbnailFileInputRef.current?.click()}
-                  >
-                    <div className="flex flex-col items-center justify-center">
-                      <div className="mb-4">
-                        <img
-                          src={uploadIcon}
-                          alt=""
-                          className="h-10 w-10"
-                        />
-                      </div>
-                      <p className="text-sm">
-                        <span className="font-bold text-[#9E2891]">
-                          {createUploadingThumbnail ? "Uploading…" : "Click to upload"}
-                        </span>{" "}
-                        <span className="text-grayScale-500">
-                          or paste a URL below
-                        </span>
-                      </p>
-                      <p className="mt-1 text-xs font-medium text-grayScale-400 uppercase tracking-wider">
-                        JPG, PNG (max 5 MB)
-                      </p>
-                    </div>
-                  </button>
-                  {createThumbnail.trim() ? (
-                    <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-50">
-                      <img
-                        src={createThumbnail.trim()}
-                        alt=""
-                        className="h-28 w-full object-cover"
-                      />
-                    </div>
-                  ) : null}
-                  <Input
-                    value={createThumbnail}
-                    onChange={(e) => setCreateThumbnail(e.target.value)}
-                    className="h-12 rounded-xl"
-                    placeholder="https://…"
-                    disabled={createSaving || createUploadingThumbnail}
-                  />
-                </div>
-              </div>
-
-              <div className="flex shrink-0 justify-end gap-3 border-t border-grayScale-100 bg-white px-8 py-4">
-                <Button
-                  type="button"
-                  variant="outline"
-                  className="h-12 min-w-[120px] rounded-[6px] border-grayScale-200 font-semibold"
-                  disabled={createSaving || createUploadingThumbnail}
-                  onClick={() => handleCreateDialogOpenChange(false)}
-                >
-                  Cancel
-                </Button>
-                <Button
-                  type="submit"
-                  className="h-12 min-w-[160px] rounded-[6px] bg-brand-500 font-semibold hover:bg-brand-600"
-                  disabled={createSaving || createUploadingThumbnail}
-                >
-                  {createSaving ? "Creating…" : "Create Program"}
-                </Button>
-              </div>
-            </form>
-          </DialogContent>
-        </Dialog>
-      </div>
-
-      {/* Gradient Divider */}
-      <div className="relative">
-        <div className="absolute inset-0 flex items-center" aria-hidden="true">
-          <div className="w-full border-t border-grayScale-200" />
-        </div>
-        <div className="relative flex justify-center">
-          <div
-            className="h-[0.5px] w-full opacity-20 rounded-full"
-            style={{
-              background: "gray",
-            }}
-          />
-        </div>
-      </div>
-
-      {loading ? (
-        <div className="flex flex-col items-center justify-center py-20">
-          <img src={spinnerSrc} alt="" className="h-10 w-10 animate-spin" />
-          <p className="mt-3 text-sm text-grayScale-500">Loading programs…</p>
-        </div>
-      ) : error ? (
-        <div className="flex flex-col items-center justify-center rounded-xl border border-red-100 bg-red-50/60 px-6 py-14 text-center">
-          <img src={alertSrc} alt="" className="h-10 w-10" />
-          <p className="mt-3 text-sm font-medium text-red-700">{error}</p>
-          <Button
-            type="button"
-            variant="outline"
-            className="mt-4"
-            onClick={() => void fetchPrograms()}
-          >
-            Try again
-          </Button>
-        </div>
-      ) : programs.length === 0 ? (
-        <div className="rounded-xl border border-dashed border-grayScale-200 bg-grayScale-50/50 px-6 py-14 text-center">
-          <p className="text-sm font-medium text-grayScale-600">
-            No programs yet
-          </p>
-          <p className="mt-1 text-sm text-grayScale-400">
-            Add programs in the backend or use Add Program when it is connected.
-          </p>
-        </div>
-      ) : (
-        <div className="flex flex-wrap gap-10">
-          {programs.map((program) => (
-            <Card
-              key={program.id}
-              className="group relative w-[290px] overflow-hidden border-none shadow-soft transition-all duration-300 hover:-translate-y-1 hover:shadow-lg"
-            >
-              <div
-                className="absolute right-2 top-2 z-10 flex translate-y-1 gap-1 opacity-0 pointer-events-none transition-all duration-300 ease-out group-hover:translate-y-0 group-hover:opacity-100 group-hover:pointer-events-auto"
-              >
-                <Button
-                  type="button"
-                  variant="secondary"
-                  size="icon"
-                  className="h-8 w-8 rounded-md bg-white/95 text-grayScale-600 shadow-sm transition-colors hover:bg-white"
-                  aria-label={`Edit ${program.name}`}
-                  onClick={() => openEdit(program)}
-                >
-                  <Pencil className="h-3.5 w-3.5" />
-                </Button>
-                <Button
-                  type="button"
-                  variant="secondary"
-                  size="icon"
-                  className="h-8 w-8 rounded-md bg-white/95 text-red-600 shadow-sm transition-colors hover:bg-red-50"
-                  aria-label={`Delete ${program.name}`}
-                  onClick={() => setDeletingProgram(program)}
-                >
-                  <Trash2 className="h-3.5 w-3.5" />
-                </Button>
-              </div>
-              <div
-                className="h-32 w-full bg-cover bg-center"
-                style={
-                  program.thumbnail?.trim()
-                    ? {
-                        backgroundImage: `url(${program.thumbnail.trim()})`,
-                      }
-                    : {
-                        background:
-                          "linear-gradient(135deg, #9E289180 0%, #9E2891 100%)",
-                      }
-                }
-              />
-              <CardContent className="bg-white p-6 flex flex-col h-[280px]">
-                <div className="flex-1 min-h-0">
-                  <h3 className="text-xl font-bold text-grayScale-700 line-clamp-2">
-                    {program.name}
-                  </h3>
-                  <p className="mt-2 text-sm leading-relaxed text-grayScale-500 line-clamp-4">
-                    {program.description?.trim()
-                      ? program.description
-                      : "—"}
-                  </p>
-                </div>
-                <Link
-                  to={`/new-content/learn-english/${program.id}/courses`}
-                  className="mt-4 block"
-                  onClick={(e) => e.stopPropagation()}
-                >
-                  <Button className="h-11 w-full rounded-[6px] bg-brand-500 font-semibold hover:bg-brand-600">
-                    View Courses
-                    <ArrowRight className="ml-2 h-4 w-4 transition-transform group-hover:translate-x-1" />
-                  </Button>
-                </Link>
-              </CardContent>
-            </Card>
-          ))}
-        </div>
-      )}
-
-      <Dialog
-        open={editingProgram !== null}
-        onOpenChange={(open) => {
-          if (!open && (savingEdit || uploadingEditThumbnail)) return;
-          if (!open) closeEdit();
-        }}
-      >
-        <DialogContent className="max-w-lg">
-          <DialogHeader>
-            <DialogTitle>Edit program</DialogTitle>
-            <DialogDescription>
-              Update name, description, and thumbnail. Upload an image from your
-              computer (via file storage) or paste a URL. Changes are saved to the
-              server.
-            </DialogDescription>
-          </DialogHeader>
-          <div className="grid gap-4 py-2">
-            <div className="space-y-2">
-              <label className="text-sm font-medium text-grayScale-700">
-                Name
-              </label>
-              <Input
-                value={editName}
-                onChange={(e) => setEditName(e.target.value)}
-                className="rounded-xl"
-                placeholder="Program name"
-                disabled={savingEdit || uploadingEditThumbnail}
-              />
-            </div>
-            <div className="space-y-2">
-              <label className="text-sm font-medium text-grayScale-700">
-                Description
-              </label>
-              <Textarea
-                value={editDescription}
-                onChange={(e) => setEditDescription(e.target.value)}
-                rows={4}
-                className="rounded-xl resize-y min-h-[100px]"
-                placeholder="Short summary of the program"
-                disabled={savingEdit || uploadingEditThumbnail}
-              />
-            </div>
-            <div className="space-y-2">
-              <label className="text-sm font-medium text-grayScale-700">
-                Thumbnail
-              </label>
-              <input
-                ref={editThumbnailFileInputRef}
-                type="file"
-                accept="image/*"
-                className="sr-only"
-                onChange={(e) => void handleEditThumbnailFile(e)}
-                disabled={savingEdit || uploadingEditThumbnail}
-              />
-              <div className="flex flex-col gap-3 sm:flex-row sm:items-start">
-                <Button
-                  type="button"
-                  variant="outline"
-                  className="h-11 shrink-0 rounded-xl border-grayScale-200 font-semibold"
-                  disabled={savingEdit || uploadingEditThumbnail}
-                  onClick={() => editThumbnailFileInputRef.current?.click()}
-                >
-                  {uploadingEditThumbnail ? "Uploading…" : "Upload from computer"}
-                </Button>
-                {editThumbnail.trim() ? (
-                  <div className="flex-1 overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-50">
-                    <img
-                      src={editThumbnail.trim()}
-                      alt=""
-                      className="h-24 w-full object-cover"
-                    />
-                  </div>
-                ) : null}
-              </div>
-              <Input
-                value={editThumbnail}
-                onChange={(e) => setEditThumbnail(e.target.value)}
-                className="rounded-xl"
-                placeholder="Or paste image URL (https://…)"
-                disabled={savingEdit || uploadingEditThumbnail}
-              />
-              <p className="text-xs text-grayScale-500">
-                Local images are sent to{" "}
-                <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px]">
-                  POST /files/upload
-                </code>
-                ; the returned URL is stored as the program thumbnail.
-              </p>
-            </div>
-          </div>
-          <DialogFooter className="gap-2 sm:gap-0">
-            <Button
-              type="button"
-              variant="outline"
-              onClick={closeEdit}
-              disabled={savingEdit || uploadingEditThumbnail}
-            >
-              Cancel
-            </Button>
-            <Button
-              type="button"
-              className="bg-brand-500 hover:bg-brand-600"
-              disabled={savingEdit || uploadingEditThumbnail}
-              onClick={() => void handleSaveEdit()}
-            >
-              {savingEdit ? "Saving…" : "Save changes"}
-            </Button>
-          </DialogFooter>
-        </DialogContent>
-      </Dialog>
-
-      {deletingProgram && (
-        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 backdrop-blur-sm">
-          <div className="mx-4 w-full max-w-sm animate-in fade-in zoom-in-95 rounded-2xl bg-white shadow-2xl">
-            <div className="flex items-center justify-between border-b border-grayScale-100 px-6 py-5">
-              <h2 className="text-lg font-bold text-grayScale-700">Delete program</h2>
-              <button
-                type="button"
-                onClick={() => !deleting && setDeletingProgram(null)}
-                disabled={deleting}
-                className="grid h-8 w-8 place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-grayScale-100 hover:text-grayScale-600 disabled:pointer-events-none disabled:opacity-50"
-              >
-                <X className="h-5 w-5" />
-              </button>
-            </div>
-
-            <div className="px-6 py-6">
-              <div className="mx-auto mb-4 grid h-12 w-12 place-items-center rounded-full bg-red-50">
-                <Trash2 className="h-5 w-5 text-red-500" />
-              </div>
-              <p className="text-center text-sm leading-relaxed text-grayScale-600">
-                Are you sure you want to delete{" "}
-                <span className="font-semibold text-grayScale-700">{deletingProgram.name}</span>? This action cannot be
-                undone. Courses under this program may be affected depending on your backend.
-              </p>
-            </div>
-
-            <div className="flex flex-col-reverse gap-3 border-t border-grayScale-100 px-6 py-4 sm:flex-row sm:justify-end">
-              <Button
-                type="button"
-                variant="outline"
-                onClick={() => setDeletingProgram(null)}
-                disabled={deleting}
-                className="w-full sm:w-auto"
-              >
-                Cancel
-              </Button>
-              <Button
-                type="button"
-                className="w-full bg-red-500 shadow-sm transition-all hover:bg-red-600 hover:shadow-md sm:w-auto"
-                disabled={deleting}
-                onClick={() => void handleConfirmDelete()}
-              >
-                {deleting ? "Deleting…" : "Delete"}
-              </Button>
-            </div>
-          </div>
-        </div>
-      )}
-    </div>
-  );
-}

src/pages/content-management/ModuleDetailPage.tsx

@@ -1,676 +0,0 @@
-import { useCallback, useEffect, useState } from "react";
-import {
-  ArrowLeft,
-  Video,
-  Calendar,
-  Mic,
-  Layers,
-  Edit2,
-  Trash2,
-  X,
-} from "lucide-react";
-import { Link, useLocation, useNavigate, useParams } from "react-router-dom";
-import { toast } from "sonner";
-import {
-  deleteTopLevelModuleLesson,
-  getModuleLessons,
-  getTopLevelCourseModules,
-  updateTopLevelModuleLesson,
-} from "../../api/courses.api";
-import type { TopLevelModuleLessonItem } from "../../types/course.types";
-import { Button } from "../../components/ui/button";
-import {
-  Dialog,
-  DialogContent,
-  DialogDescription,
-  DialogFooter,
-  DialogHeader,
-  DialogTitle,
-} from "../../components/ui/dialog";
-import { Input } from "../../components/ui/input";
-import { Textarea } from "../../components/ui/textarea";
-import { resolveThumbnailForPreview } from "../../lib/videoPreview";
-import { cn } from "../../lib/utils";
-import { LessonMediaUploadField } from "./components/LessonMediaUploadField";
-import { VideoCard } from "./components/VideoCard";
-
-const LESSON_THUMB_GRADIENTS = [
-  "from-[#CBD5E1] to-[#94A3B8]",
-  "from-[#DBEAFE] to-[#93C5FD]",
-  "from-[#FEF3C7] to-[#FCD34D]",
-  "from-[#FCE7F3] to-[#F9A8D4]",
-] as const;
-
-const MOCK_PRACTICES = [
-  {
-    id: "p1",
-    title: "Describe a Photo",
-    level: "IELTS",
-    variations: 12,
-    status: "Draft",
-  },
-  {
-    id: "p2",
-    title: "Describe a Photo",
-    level: "IELTS",
-    variations: 12,
-    status: "Draft",
-  },
-  {
-    id: "p3",
-    title: "Describe a Photo",
-    level: "IELTS",
-    variations: 12,
-    status: "Draft",
-  },
-  {
-    id: "p4",
-    title: "Describe a Photo",
-    level: "IELTS",
-    variations: 12,
-    status: "Draft",
-  },
-];
-
-type ModuleDetailState = {
-  moduleName?: string;
-  moduleDescription?: string;
-};
-
-export function ModuleDetailPage() {
-  const navigate = useNavigate();
-  const location = useLocation();
-  const navState = location.state as ModuleDetailState | null;
-  const { level, courseId, moduleId } = useParams<{
-    level: string;
-    courseId: string;
-    moduleId: string;
-  }>();
-  const [activeTab, setActiveTab] = useState<"video" | "practice">("video");
-  const [activeFilter, setActiveFilter] = useState("Draft");
-  const [lessons, setLessons] = useState<TopLevelModuleLessonItem[]>([]);
-  const [lessonsLoading, setLessonsLoading] = useState(true);
-  const [lessonsLoadError, setLessonsLoadError] = useState<string | null>(null);
-  const [editingLesson, setEditingLesson] =
-    useState<TopLevelModuleLessonItem | null>(null);
-  const [editLessonTitle, setEditLessonTitle] = useState("");
-  const [editLessonVideoUrl, setEditLessonVideoUrl] = useState("");
-  const [editLessonThumbnail, setEditLessonThumbnail] = useState("");
-  const [editLessonDescription, setEditLessonDescription] = useState("");
-  const [savingLessonEdit, setSavingLessonEdit] = useState(false);
-  const [thumbUploadBusy, setThumbUploadBusy] = useState(false);
-  const [videoUploadBusy, setVideoUploadBusy] = useState(false);
-  const lessonMediaUploadBusy = thumbUploadBusy || videoUploadBusy;
-  const [deletingLesson, setDeletingLesson] =
-    useState<TopLevelModuleLessonItem | null>(null);
-  const [deletingLessonInFlight, setDeletingLessonInFlight] = useState(false);
-  const [practices] = useState(MOCK_PRACTICES);
-  const [loadedModuleName, setLoadedModuleName] = useState<string | null>(null);
-  const [loadedModuleDescription, setLoadedModuleDescription] = useState<
-    string | null
-  >(null);
-  const [moduleListResolved, setModuleListResolved] = useState(
-    Boolean(navState?.moduleName?.trim()),
-  );
-
-  const moduleTitleFallback =
-    moduleId
-      ?.split("-")
-      .map((word) => word.charAt(0).toUpperCase() + word.slice(1))
-      .join(" ") || "Module";
-
-  const displayModuleName =
-    navState?.moduleName?.trim() ||
-    loadedModuleName ||
-    moduleTitleFallback;
-
-  const hasNavName = Boolean(navState?.moduleName?.trim());
-
-  const displayModuleDescription = (() => {
-    if (hasNavName) {
-      return navState?.moduleDescription?.trim() || "—";
-    }
-    if (!moduleListResolved) {
-      return "Loading…";
-    }
-    if (loadedModuleDescription !== null) {
-      return loadedModuleDescription.trim() || "—";
-    }
-    return "—";
-  })();
-
-  useEffect(() => {
-    if (navState?.moduleName?.trim()) {
-      return;
-    }
-    const id = Number(moduleId);
-    const cid = Number(courseId);
-    if (!Number.isFinite(id) || id < 1 || !Number.isFinite(cid) || cid < 1) {
-      setModuleListResolved(true);
-      return;
-    }
-    let cancelled = false;
-    (async () => {
-      try {
-        const res = await getTopLevelCourseModules(cid, { limit: 100, offset: 0 });
-        if (cancelled) return;
-        const list = res.data?.data?.modules;
-        if (Array.isArray(list)) {
-          const m = list.find((mod) => mod.id === id);
-          if (m) {
-            setLoadedModuleName(m.name);
-            setLoadedModuleDescription(m.description ?? "");
-          } else {
-            setLoadedModuleName(null);
-            setLoadedModuleDescription("");
-          }
-        } else {
-          setLoadedModuleName(null);
-          setLoadedModuleDescription(null);
-        }
-      } catch {
-        if (!cancelled) {
-          setLoadedModuleName(null);
-          setLoadedModuleDescription(null);
-        }
-      } finally {
-        if (!cancelled) {
-          setModuleListResolved(true);
-        }
-      }
-    })();
-    return () => {
-      cancelled = true;
-    };
-  }, [navState?.moduleName, courseId, moduleId]);
-
-  const loadModuleLessons = useCallback(
-    async (options?: { showPageLoading?: boolean }) => {
-      const showPageLoading = options?.showPageLoading ?? true;
-      const mid = Number(moduleId);
-      if (!Number.isFinite(mid) || mid < 1) {
-        setLessons([]);
-        setLessonsLoadError(null);
-        setLessonsLoading(false);
-        return;
-      }
-      if (showPageLoading) {
-        setLessonsLoading(true);
-        setLessonsLoadError(null);
-      }
-      try {
-        const res = await getModuleLessons(mid, { limit: 100, offset: 0 });
-        const list = res.data?.data?.lessons;
-        if (Array.isArray(list)) {
-          setLessons(
-            [...list].sort(
-              (a, b) => (a.sort_order ?? 0) - (b.sort_order ?? 0),
-            ),
-          );
-        } else {
-          setLessons([]);
-        }
-        if (showPageLoading) {
-          setLessonsLoadError(null);
-        }
-      } catch {
-        if (showPageLoading) {
-          setLessons([]);
-          setLessonsLoadError("Failed to load lessons. Please try again.");
-        } else {
-          toast.error("Failed to refresh lessons");
-        }
-      } finally {
-        if (showPageLoading) {
-          setLessonsLoading(false);
-        }
-      }
-    },
-    [moduleId],
-  );
-
-  useEffect(() => {
-    void loadModuleLessons({ showPageLoading: true });
-  }, [loadModuleLessons]);
-
-  const openEditLesson = (lesson: TopLevelModuleLessonItem) => {
-    setEditingLesson(lesson);
-    setEditLessonTitle(lesson.title ?? "");
-    setEditLessonVideoUrl(lesson.video_url ?? "");
-    setEditLessonThumbnail(lesson.thumbnail ?? "");
-    setEditLessonDescription(lesson.description ?? "");
-  };
-
-  const closeEditLesson = () => {
-    if (savingLessonEdit || lessonMediaUploadBusy) return;
-    setEditingLesson(null);
-  };
-
-  const handleSaveLessonEdit = async () => {
-    if (!editingLesson) return;
-    const title = editLessonTitle.trim();
-    if (!title) {
-      toast.error("Title is required");
-      return;
-    }
-    setSavingLessonEdit(true);
-    try {
-      await updateTopLevelModuleLesson(editingLesson.id, {
-        title,
-        video_url: editLessonVideoUrl.trim(),
-        thumbnail: editLessonThumbnail.trim(),
-        description: editLessonDescription.trim(),
-      });
-      toast.success("Lesson updated");
-      setEditingLesson(null);
-      await loadModuleLessons({ showPageLoading: false });
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to update lesson";
-      toast.error(msg);
-    } finally {
-      setSavingLessonEdit(false);
-    }
-  };
-
-  const handleConfirmDeleteLesson = async () => {
-    if (!deletingLesson) return;
-    setDeletingLessonInFlight(true);
-    try {
-      await deleteTopLevelModuleLesson(deletingLesson.id);
-      toast.success("Lesson deleted");
-      setDeletingLesson(null);
-      await loadModuleLessons({ showPageLoading: false });
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to delete lesson";
-      toast.error(msg);
-    } finally {
-      setDeletingLessonInFlight(false);
-    }
-  };
-
-  return (
-    <div className="space-y-10 pt-10 pb-20 animate-in fade-in duration-500">
-      {/* Header Navigation */}
-      <div className="flex items-center gap-2">
-        <Link
-          to={`/new-content/learn-english/${level}/courses/${courseId}`}
-          className="flex items-center gap-2 text-[15px] font-medium text-grayScale-600 transition-colors hover:text-brand-500"
-        >
-          <ArrowLeft className="h-5 w-5" />
-          Back to Modules
-        </Link>
-      </div>
-
-      {/* Hero Section */}
-      <div className="flex flex-col md:flex-row md:items-start justify-between gap-6">
-        <div className="">
-          <h1 className="text-2xl font-medium text-grayScale-900 tracking-tight">
-            {displayModuleName}
-          </h1>
-          <p className="text-grayScale-500 text-[14px] max-w-2xl">
-            {displayModuleDescription}
-          </p>
-        </div>
-        <div className="flex items-center gap-3">
-          <Button
-            variant="outline"
-            className="rounded-[6px] border-brand-500 text-brand-500 "
-            onClick={() =>
-              navigate(
-                `/new-content/learn-english/${level}/courses/add-practice?backTo=module&courseId=${courseId}&moduleId=${moduleId}`,
-              )
-            }
-          >
-            <Calendar className="h-4 w-4" />
-            Add Practice
-          </Button>
-          <Button
-            className="rounded-[6px] bg-brand-500 font-semibold hover:bg-brand-600"
-            onClick={() =>
-              navigate(
-                `/new-content/learn-english/${level}/courses/${courseId}/modules/${moduleId}/add-video`,
-              )
-            }
-          >
-            <div className="h-4 w-4 flex items-center justify-center">
-              <span className="text-xl leading-none font-light">+</span>
-            </div>
-            Add Lesson
-          </Button>
-        </div>
-      </div>
-
-      {/* Tabs */}
-      <div className="border-b border-grayScale-200">
-        <div className="flex gap-10">
-          <button
-            onClick={() => setActiveTab("video")}
-            className={cn(
-              "pb-4 text-[16px] font-medium transition-all relative",
-              activeTab === "video"
-                ? "text-brand-500 after:absolute after:bottom-0 after:left-0 after:right-0 after:h-[3px] after:bg-brand-500 after:rounded-t-full"
-                : "text-grayScale-400 hover:text-grayScale-600",
-            )}
-          >
-            Lesson
-          </button>
-          <button
-            onClick={() => setActiveTab("practice")}
-            className={cn(
-              "pb-4 text-[16px] font-medium transition-all relative",
-              activeTab === "practice"
-                ? "text-brand-500 after:absolute after:bottom-0 after:left-0 after:right-0 after:h-[3px] after:bg-brand-500 after:rounded-t-full"
-                : "text-grayScale-400 hover:text-grayScale-600",
-            )}
-          >
-            Practice
-          </button>
-        </div>
-      </div>
-
-      {/* Content */}
-      <div className="mt-8">
-        {activeTab === "video" ? (
-          lessonsLoading ? (
-            <div className="flex flex-col items-center justify-center py-24 text-grayScale-500 text-[15px] font-medium">
-              Loading lessons…
-            </div>
-          ) : lessonsLoadError ? (
-            <div className="rounded-2xl border border-amber-100 bg-amber-50/80 px-6 py-8 text-center text-sm text-amber-900 max-w-lg mx-auto">
-              {lessonsLoadError}
-            </div>
-          ) : lessons.length > 0 ? (
-            <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
-              {lessons.map((lesson, i) => (
-                <VideoCard
-                  key={lesson.id}
-                  id={lesson.id}
-                  title={lesson.title}
-                  videoUrl={lesson.video_url}
-                  hoverModuleActions
-                  thumbnailUrl={resolveThumbnailForPreview(lesson.thumbnail)}
-                  thumbnailGradient={LESSON_THUMB_GRADIENTS[i % LESSON_THUMB_GRADIENTS.length]}
-                  onEdit={() => openEditLesson(lesson)}
-                  onDelete={() => setDeletingLesson(lesson)}
-                />
-              ))}
-            </div>
-          ) : (
-            <div className="flex flex-col items-center justify-center py-32 px-4 rounded-[40px] border-2 border-dashed border-[#F1F5F9] bg-white max-w-4xl mx-auto shadow-sm">
-              <div className="h-20 w-20 rounded-full bg-[#FAF5FF] flex items-center justify-center mb-6">
-                <div className="h-14 w-14 rounded-full bg-[#F5EBFF] flex items-center justify-center">
-                  <Video className="h-7 w-7 text-brand-500 fill-brand-500/10" />
-                </div>
-              </div>
-              <h2 className="text-2xl font-extrabold text-grayScale-900 mb-3">
-                No lessons in this module yet
-              </h2>
-              <p className="text-grayScale-400 font-medium text-[15px] text-center max-w-sm mb-10 leading-relaxed">
-                Lessons are a great way to engage students. Add your first
-                lesson to get started.
-              </p>
-              <Button
-                variant="outline"
-                className="h-12 px-8 rounded-xl border-brand-500 text-brand-500 font-bold hover:bg-brand-50 transition-all flex items-center gap-2"
-                onClick={() =>
-                  navigate(
-                    `/new-content/learn-english/${level}/courses/${courseId}/modules/${moduleId}/add-video`,
-                  )
-                }
-              >
-                <Video className="h-5 w-5" />
-                Add Lesson
-              </Button>
-            </div>
-          )
-        ) : (
-          <div className="space-y-8">
-            {/* Practice Tab Filter Bar */}
-            <div className="bg-white border border-grayScale-100 rounded-2xl p-4 flex items-center gap-10 shadow-sm overflow-x-auto whitespace-nowrap px-8">
-              <div className="flex items-center gap-2 text-[12px] font-bold text-grayScale-300 uppercase tracking-widest mr-2">
-                STATUS:
-              </div>
-              <div className="flex items-center gap-3">
-                {["All", "Published", "Draft", "Archived"].map((label) => (
-                  <button
-                    key={label}
-                    onClick={() => setActiveFilter(label)}
-                    className={cn(
-                      "h-9 px-5 rounded-full text-[13px] font-bold transition-all",
-                      activeFilter === label
-                        ? "bg-brand-500 text-white shadow-md shadow-brand-500/20"
-                        : "bg-[#F1F5F9] text-grayScale-500 hover:bg-grayScale-100",
-                    )}
-                  >
-                    {label}
-                  </button>
-                ))}
-              </div>
-            </div>
-
-            {/* Practice Cards Grid */}
-            <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
-              {practices.map((practice) => (
-                <PracticeCard key={practice.id} {...practice} />
-              ))}
-            </div>
-          </div>
-        )}
-      </div>
-
-      <Dialog
-        open={editingLesson !== null}
-        onOpenChange={(open) => {
-          if (!open && (savingLessonEdit || lessonMediaUploadBusy)) return;
-          if (!open) closeEditLesson();
-        }}
-      >
-        <DialogContent className="max-w-lg max-h-[90vh] overflow-y-auto">
-          <DialogHeader>
-            <DialogTitle>Edit lesson</DialogTitle>
-            <DialogDescription>
-              Update details. Video and thumbnail files use{" "}
-              <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px]">
-                POST /files/upload
-              </code>
-              ; the form is saved with{" "}
-              <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px]">
-                PUT /lessons/:id
-              </code>
-              .
-            </DialogDescription>
-          </DialogHeader>
-          <div className="grid gap-4 py-2">
-            <div className="space-y-2">
-              <label
-                className="text-sm font-medium text-grayScale-700"
-                htmlFor="edit-lesson-title"
-              >
-                Title
-              </label>
-              <Input
-                id="edit-lesson-title"
-                value={editLessonTitle}
-                onChange={(e) => setEditLessonTitle(e.target.value)}
-                disabled={savingLessonEdit}
-              />
-            </div>
-            <LessonMediaUploadField
-              kind="video"
-              value={editLessonVideoUrl}
-              onChange={setEditLessonVideoUrl}
-              disabled={savingLessonEdit}
-              onUploadBusyChange={setVideoUploadBusy}
-            />
-            <LessonMediaUploadField
-              kind="thumbnail"
-              value={editLessonThumbnail}
-              onChange={setEditLessonThumbnail}
-              disabled={savingLessonEdit}
-              onUploadBusyChange={setThumbUploadBusy}
-            />
-            <div className="space-y-2">
-              <label
-                className="text-sm font-medium text-grayScale-700"
-                htmlFor="edit-lesson-desc"
-              >
-                Description
-              </label>
-              <Textarea
-                id="edit-lesson-desc"
-                value={editLessonDescription}
-                onChange={(e) => setEditLessonDescription(e.target.value)}
-                rows={4}
-                disabled={savingLessonEdit}
-                className="min-h-[100px] resize-y"
-              />
-            </div>
-          </div>
-          <DialogFooter>
-            <Button
-              type="button"
-              variant="outline"
-              onClick={closeEditLesson}
-              disabled={savingLessonEdit || lessonMediaUploadBusy}
-            >
-              Cancel
-            </Button>
-            <Button
-              type="button"
-              onClick={() => void handleSaveLessonEdit()}
-              disabled={savingLessonEdit || lessonMediaUploadBusy}
-            >
-              {savingLessonEdit ? "Saving…" : "Save changes"}
-            </Button>
-          </DialogFooter>
-        </DialogContent>
-      </Dialog>
-
-      {deletingLesson && (
-        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 backdrop-blur-sm">
-          <div className="mx-4 w-full max-w-sm animate-in fade-in zoom-in-95 rounded-2xl bg-white shadow-2xl">
-            <div className="flex items-center justify-between border-b border-grayScale-100 px-6 py-5">
-              <h2 className="text-lg font-bold text-grayScale-700">
-                Delete lesson
-              </h2>
-              <button
-                type="button"
-                onClick={() =>
-                  !deletingLessonInFlight && setDeletingLesson(null)
-                }
-                disabled={deletingLessonInFlight}
-                className="grid h-8 w-8 place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-grayScale-100 hover:text-grayScale-600 disabled:pointer-events-none disabled:opacity-50"
-              >
-                <X className="h-5 w-5" />
-              </button>
-            </div>
-
-            <div className="px-6 py-6">
-              <div className="mx-auto mb-4 grid h-12 w-12 place-items-center rounded-full bg-red-50">
-                <Trash2 className="h-5 w-5 text-red-500" />
-              </div>
-              <p className="text-center text-sm leading-relaxed text-grayScale-600">
-                Are you sure you want to delete{" "}
-                <span className="font-semibold text-grayScale-700">
-                  {deletingLesson.title}
-                </span>
-                ? This cannot be undone.
-              </p>
-            </div>
-
-            <div className="flex flex-col-reverse gap-3 border-t border-grayScale-100 px-6 py-4 sm:flex-row sm:justify-end">
-              <Button
-                type="button"
-                variant="outline"
-                onClick={() => setDeletingLesson(null)}
-                disabled={deletingLessonInFlight}
-                className="w-full sm:w-auto"
-              >
-                Cancel
-              </Button>
-              <Button
-                type="button"
-                className="w-full bg-red-500 shadow-sm transition-all hover:bg-red-600 hover:shadow-md sm:w-auto"
-                disabled={deletingLessonInFlight}
-                onClick={() => void handleConfirmDeleteLesson()}
-              >
-                {deletingLessonInFlight ? "Deleting…" : "Delete"}
-              </Button>
-            </div>
-          </div>
-        </div>
-      )}
-    </div>
-  );
-}
-
-function PracticeCard({
-  title,
-  level,
-  variations,
-  status,
-}: {
-  title: string;
-  level: string;
-  variations: number;
-  status: string;
-}) {
-  return (
-    <div className="bg-white rounded-[24px] border border-grayScale-50 shadow-sm overflow-hidden hover:shadow-xl hover:shadow-grayScale-400/5 transition-all group p-6 flex flex-col h-full min-h-[340px]">
-      <div className="flex-1 space-y-6">
-        <div className="flex items-center justify-between">
-          <h3 className="text-[18px] font-bold text-grayScale-900 line-clamp-1">
-            {title}
-          </h3>
-        </div>
-
-        <div className="flex items-center justify-between gap-3">
-          <span className="bg-[#22C55E] text-white text-[11px] font-bold px-2 py-1 rounded-[4px]">
-            {level}
-          </span>
-          <div className="flex items-center gap-1.5 text-grayScale-500">
-            <Mic className="h-4 w-4" />
-            <span className="text-[13px] font-bold">Speaking</span>
-          </div>
-        </div>
-
-        <div className="flex items-center gap-2.5 text-brand-400 w-fit py-2  rounded-xl">
-          <Layers className="h-4 w-4" />
-          <span className="text-[14px] font-bold">{variations} Variations</span>
-        </div>
-
-        <div className="flex border-t border-grayScale-200 items-center justify-between pt-2">
-          <div className="bg-grayScale-100 text-grayScale-400 text-[11px] font-bold px-3 py-1.5 rounded-[6px] tracking-wide uppercase">
-            {status}
-          </div>
-          <div className="flex items-center gap-3">
-            <button className="h-8 w-8 rounded-lg  flex items-center justify-center text-grayScale-400 hover:text-brand-500 hover:border-brand-100 transition-all">
-              <Edit2 className="h-5 w-5" />
-            </button>
-            <button className="h-8 w-8 rounded-lg  flex items-center justify-center text-grayScale-400 hover:text-red-500 hover:border-red-100 transition-all">
-              <Trash2 className="h-5 w-5" />
-            </button>
-          </div>
-        </div>
-      </div>
-
-      <div className="mt-8 grid grid-cols-2 gap-3">
-        <Button className="bg-brand-500 text-white rounded-xl h-11 text-[13px] font-bold shadow-md shadow-brand-500/10 hover:bg-brand-600 transition-all px-0">
-          Publish Practice
-        </Button>
-        <Button
-          variant="outline"
-          className="border-brand-500 text-brand-500 rounded-xl h-11 text-[13px] font-bold bg-white hover:bg-brand-50 transition-all px-0"
-        >
-          Publish Video
-        </Button>
-      </div>
-    </div>
-  );
-}

src/pages/content-management/NewContentPage.tsx

@@ -1,83 +0,0 @@
-import { Link } from "react-router-dom";
-import { Mic } from "lucide-react";
-import { Card, CardContent } from "../../components/ui/card";
-import { Button } from "../../components/ui/button";
-
-export function NewContentPage() {
-  return (
-    <div className="space-y-8">
-      {/* Header section */}
-      <div>
-        <h1 className="text-2xl font-bold tracking-tight text-grayScale-700">
-          Content Management
-        </h1>
-        <p className="mt-1 text-sm text-grayScale-500">
-          Upload, organize, and manage learning content across programs and
-          courses
-        </p>
-      </div>
-
-      {/* Gradient Divider */}
-      <div className="relative">
-        <div className="absolute inset-0 flex items-center" aria-hidden="true">
-          <div className="w-full border-t border-grayScale-100" />
-        </div>
-        <div className="relative flex justify-center">
-          <div
-            className="h-[0.5px] w-full opacity-20 rounded-full"
-            style={{
-              background: "gray",
-            }}
-          />
-        </div>
-      </div>
-
-      {/* Cards Grid */}
-      <div className="grid max-w-5xl gap-8 grid-cols-1 md:grid-cols-2">
-        {/* Learn English Card */}
-        <Card className="overflow-hidden border-none shadow-soft">
-          <div className="flex h-56 items-center justify-center bg-white/50">
-            <div className="flex h-20 w-20 items-center justify-center rounded-full bg-brand-100/30">
-              <Mic className="h-10 w-10 text-brand-500" />
-            </div>
-          </div>
-          <CardContent className="border-t border-grayScale-200 bg-white p-8 text-center">
-            <h3 className="text-xl font-bold text-grayScale-700">
-              Learn English
-            </h3>
-            <p className="mt-3 text-sm leading-relaxed text-grayScale-500">
-              Manage structured English learning content based on levels and
-              modules.
-            </p>
-            <Link to="/new-content/learn-english">
-              <Button className="mt-8 h-12 w-full rounded-[6px] bg-brand-500 text-base font-semibold ">
-                Manage Learn English
-              </Button>
-            </Link>
-          </CardContent>
-        </Card>
-
-        {/* Courses Card */}
-        <Card className="overflow-hidden border-none shadow-soft">
-          <div className="flex h-56 items-center justify-center bg-white/50">
-            <div className="flex h-20 w-20 items-center justify-center rounded-full bg-brand-100/30">
-              <Mic className="h-10 w-10 text-brand-500" />
-            </div>
-          </div>
-          <CardContent className="border-t border-grayScale-200 bg-white p-8 text-center">
-            <h3 className="text-xl font-bold text-grayScale-700">Courses</h3>
-            <p className="mt-3 text-sm leading-relaxed text-grayScale-500">
-              Manage skill-based and exam preparation courses such as Duolingo
-              and IELTS.
-            </p>
-            <Link to="/new-content/courses" className="block w-full">
-              <Button className="mt-8 h-12 w-full rounded-[6px] bg-brand-500 text-base font-semibold ">
-                Manage Courses
-              </Button>
-            </Link>
-          </CardContent>
-        </Card>
-      </div>
-    </div>
-  );
-}

src/pages/content-management/PracticeQuestionsPage.tsx

@@ -58,13 +58,7 @@ const typeColors: Record<QuestionType, string> = {
 }
 
 export function PracticeQuestionsPage() {
-  const { categoryId, courseId, subModuleId, levelId, practiceId } = useParams<{
+  const { categoryId, courseId, subModuleId, practiceId } = useParams()
-    categoryId: string
-    courseId: string
-    subModuleId?: string
-    levelId?: string
-    practiceId?: string
-  }>()
   const location = useLocation()
   
   const [questions, setQuestions] = useState<PracticeQuestion[]>([])
@@ -108,14 +102,11 @@ export function PracticeQuestionsPage() {
   const [saveError, setSaveError] = useState<string | null>(null)
 
   const backLink = useMemo(() => {
-    if (location.pathname.includes("/content/human-language/") && location.pathname.includes("/level/") && levelId) {
+    if (location.pathname.includes("/content/human-language/") && location.pathname.includes("/sub-module/")) {
-      return "/content/human-language"
-    }
-    if (location.pathname.includes("/content/human-language/") && location.pathname.includes("/sub-module/") && subModuleId) {
       return `/content/human-language/${categoryId}/${courseId}/sub-module/${subModuleId}`
     }
     return `/content/category/${categoryId}/courses/${courseId}/sub-modules/${subModuleId}`
-  }, [location.pathname, categoryId, courseId, subModuleId, levelId])
+  }, [location.pathname, categoryId, courseId, subModuleId])
 
   const buildDefaultOptions = (type: QuestionType, sampleAnswerText?: string): DraftOption[] => {
     if (type === "TRUE_FALSE") {

src/pages/content-management/ProgramCoursesPage.tsx

@@ -1,837 +0,0 @@
-import { useCallback, useEffect, useRef, useState } from "react";
-import { ArrowLeft, Plus, FileText, Pencil, Trash2, X } from "lucide-react";
-import { Link, useNavigate, useParams } from "react-router-dom";
-import { toast } from "sonner";
-import { Card, CardContent } from "../../components/ui/card";
-import { Button } from "../../components/ui/button";
-import {
-  Dialog,
-  DialogContent,
-  DialogHeader,
-  DialogTitle,
-  DialogDescription,
-  DialogFooter,
-  DialogTrigger,
-} from "../../components/ui/dialog";
-import { Input } from "../../components/ui/input";
-import { Textarea } from "../../components/ui/textarea";
-import uploadIcon from "../../assets/icons/upload.png";
-import spinnerSrc from "../../assets/Circular-indeterminate progress indicator.svg";
-import alertSrc from "../../assets/Alert.svg";
-import {
-  createProgramCourse,
-  deleteTopLevelCourse,
-  getLearningPrograms,
-  getProgramCourses,
-  updateTopLevelCourse,
-} from "../../api/courses.api";
-import { uploadImageFile } from "../../api/files.api";
-import type {
-  LearningProgramListItem,
-  ProgramCourseListItem,
-} from "../../types/course.types";
-
-export function ProgramCoursesPage() {
-  const navigate = useNavigate();
-  /** Route segment is the numeric program id (see Learn English program cards). */
-  const { level: programIdParam } = useParams<{ level: string }>();
-  const programId = Number(programIdParam);
-
-  const [program, setProgram] = useState<LearningProgramListItem | null>(null);
-  const [courses, setCourses] = useState<ProgramCourseListItem[]>([]);
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState<string | null>(null);
-
-  const [deletingCourse, setDeletingCourse] = useState<ProgramCourseListItem | null>(
-    null,
-  );
-  const [deleting, setDeleting] = useState(false);
-
-  const [editingCourse, setEditingCourse] = useState<ProgramCourseListItem | null>(
-    null,
-  );
-  const [editName, setEditName] = useState("");
-  const [editDescription, setEditDescription] = useState("");
-  const [editThumbnail, setEditThumbnail] = useState("");
-  const [savingEdit, setSavingEdit] = useState(false);
-  const [uploadingEditThumbnail, setUploadingEditThumbnail] = useState(false);
-  const editThumbnailFileInputRef = useRef<HTMLInputElement>(null);
-
-  const [createCourseOpen, setCreateCourseOpen] = useState(false);
-  const [createName, setCreateName] = useState("");
-  const [createDescription, setCreateDescription] = useState("");
-  const [createThumbnail, setCreateThumbnail] = useState("");
-  const [createSaving, setCreateSaving] = useState(false);
-  const [createUploadingThumbnail, setCreateUploadingThumbnail] = useState(false);
-  const createThumbnailFileInputRef = useRef<HTMLInputElement>(null);
-
-  const programIdValid = Number.isFinite(programId) && programId >= 1;
-
-  const loadData = useCallback(async () => {
-    if (!Number.isFinite(programId) || programId < 1) {
-      setError("Invalid program");
-      setLoading(false);
-      setCourses([]);
-      setProgram(null);
-      return;
-    }
-    setLoading(true);
-    setError(null);
-    try {
-      const [coursesRes, programsRes] = await Promise.all([
-        getProgramCourses(programId, { limit: 100, offset: 0 }),
-        getLearningPrograms({ limit: 100, offset: 0 }),
-      ]);
-
-      const programRows = programsRes.data?.data?.programs;
-      const list = Array.isArray(programRows) ? programRows : [];
-      const found = list.find((p) => p.id === programId) ?? null;
-      setProgram(found);
-
-      const raw = coursesRes.data?.data?.courses;
-      const courseList = Array.isArray(raw) ? raw : [];
-      const sorted = [...courseList].sort(
-        (a, b) => (a.sort_order ?? 0) - (b.sort_order ?? 0),
-      );
-      setCourses(sorted);
-    } catch (e) {
-      console.error(e);
-      setError("Failed to load courses");
-      setCourses([]);
-      setProgram(null);
-      toast.error("Could not load courses", {
-        description: "Check your connection or try again.",
-      });
-    } finally {
-      setLoading(false);
-    }
-  }, [programId]);
-
-  useEffect(() => {
-    void loadData();
-  }, [loadData]);
-
-  const handleConfirmDeleteCourse = async () => {
-    if (!deletingCourse) return;
-    setDeleting(true);
-    try {
-      await deleteTopLevelCourse(deletingCourse.id);
-      toast.success("Course deleted");
-      setDeletingCourse(null);
-      await loadData();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to delete course";
-      toast.error(msg);
-    } finally {
-      setDeleting(false);
-    }
-  };
-
-  const openEditCourse = (course: ProgramCourseListItem) => {
-    setEditingCourse(course);
-    setEditName(course.name ?? "");
-    setEditDescription(course.description?.trim() ?? "");
-    setEditThumbnail(
-      course.thumbnail?.trim() || course.thumbnail_url?.trim() || "",
-    );
-  };
-
-  const closeEditCourse = () => {
-    setEditingCourse(null);
-    setEditName("");
-    setEditDescription("");
-    setEditThumbnail("");
-    setUploadingEditThumbnail(false);
-    if (editThumbnailFileInputRef.current) {
-      editThumbnailFileInputRef.current.value = "";
-    }
-  };
-
-  const handleEditCourseThumbnailFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("image/")) {
-      toast.error("Please choose an image file");
-      return;
-    }
-    const maxBytes = 5 * 1024 * 1024;
-    if (file.size > maxBytes) {
-      toast.error("Image is too large", { description: "Maximum size is 5 MB." });
-      return;
-    }
-    setUploadingEditThumbnail(true);
-    try {
-      const res = await uploadImageFile(file);
-      const url = res.data?.data?.url?.trim();
-      if (!url) {
-        throw new Error("Upload did not return a file URL");
-      }
-      setEditThumbnail(url);
-      toast.success("Thumbnail uploaded");
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail";
-      toast.error(msg);
-    } finally {
-      setUploadingEditThumbnail(false);
-    }
-  };
-
-  const handleSaveEditCourse = async () => {
-    if (!editingCourse) return;
-    const name = editName.trim();
-    if (!name) {
-      toast.error("Course name is required");
-      return;
-    }
-    setSavingEdit(true);
-    try {
-      await updateTopLevelCourse(editingCourse.id, {
-        name,
-        description: editDescription.trim(),
-        thumbnail: editThumbnail.trim(),
-      });
-      toast.success("Course updated");
-      closeEditCourse();
-      await loadData();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to update course";
-      toast.error(msg);
-    } finally {
-      setSavingEdit(false);
-    }
-  };
-
-  const clearCreateCourseForm = () => {
-    setCreateName("");
-    setCreateDescription("");
-    setCreateThumbnail("");
-    setCreateUploadingThumbnail(false);
-    if (createThumbnailFileInputRef.current) {
-      createThumbnailFileInputRef.current.value = "";
-    }
-  };
-
-  const handleCreateCourseDialogOpenChange = (open: boolean) => {
-    if (!open && (createSaving || createUploadingThumbnail)) return;
-    clearCreateCourseForm();
-    setCreateCourseOpen(open);
-  };
-
-  const handleCreateCourseThumbnailFile = async (
-    event: React.ChangeEvent<HTMLInputElement>,
-  ) => {
-    const file = event.target.files?.[0];
-    event.target.value = "";
-    if (!file) return;
-    if (!file.type.startsWith("image/")) {
-      toast.error("Please choose an image file");
-      return;
-    }
-    const maxBytes = 5 * 1024 * 1024;
-    if (file.size > maxBytes) {
-      toast.error("Image is too large", { description: "Maximum size is 5 MB." });
-      return;
-    }
-    setCreateUploadingThumbnail(true);
-    try {
-      const res = await uploadImageFile(file);
-      const url = res.data?.data?.url?.trim();
-      if (!url) {
-        throw new Error("Upload did not return a file URL");
-      }
-      setCreateThumbnail(url);
-      toast.success("Thumbnail uploaded");
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to upload thumbnail";
-      toast.error(msg);
-    } finally {
-      setCreateUploadingThumbnail(false);
-    }
-  };
-
-  const handleCreateCourse = async () => {
-    if (!programIdValid) return;
-    const name = createName.trim();
-    if (!name) {
-      toast.error("Course name is required");
-      return;
-    }
-    setCreateSaving(true);
-    try {
-      await createProgramCourse(programId, {
-        name,
-        description: createDescription.trim(),
-        thumbnail: createThumbnail.trim(),
-      });
-      toast.success("Course created");
-      clearCreateCourseForm();
-      setCreateCourseOpen(false);
-      await loadData();
-    } catch (e: unknown) {
-      console.error(e);
-      const msg =
-        (e as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to create course";
-      toast.error(msg);
-    } finally {
-      setCreateSaving(false);
-    }
-  };
-
-  const programTitle = !programIdValid
-    ? "Program not found"
-    : program?.name?.trim() || `Program ${programId}`;
-  const programDescription =
-    program?.description?.trim() ||
-    (!loading && programIdValid && !program
-      ? "Program details are unavailable. You can still browse courses below if they loaded."
-      : "");
-
-  return (
-    <div className="space-y-8 pt-10">
-      {/* Navigation */}
-      <Link
-        to="/new-content/learn-english"
-        className="flex items-center gap-2 text-sm font-medium text-grayScale-500 transition-colors hover:text-brand-500"
-      >
-        <ArrowLeft className="h-4 w-4" />
-        Back to Programs
-      </Link>
-
-      {/* Header section */}
-      <div className="flex flex-col gap-4 sm:flex-row sm:items-start sm:justify-between">
-        <div className="space-y-1">
-          <h1 className="text-3xl font-bold tracking-tight text-grayScale-700">
-            {programTitle}
-          </h1>
-          {programDescription ? (
-            <p className="max-w-2xl text-[15px] leading-relaxed text-grayScale-400">
-              {programDescription}
-            </p>
-          ) : loading ? (
-            <div className="flex items-center gap-2 pt-1">
-              <img
-                src={spinnerSrc}
-                alt=""
-                className="h-6 w-6 animate-spin"
-              />
-            </div>
-          ) : null}
-        </div>
-
-        <div className="flex gap-3">
-          {programIdValid ? (
-            <>
-              <Link
-                to={`/new-content/learn-english/${programIdParam}/courses/add-practice`}
-              >
-                <Button
-                  variant="outline"
-                  className="rounded-[6px] border-brand-500 text-brand-500 "
-                >
-                  <FileText className="mr-2 h-4 w-4" />
-                  Add Practice
-                </Button>
-              </Link>
-
-              <Dialog
-                open={createCourseOpen}
-                onOpenChange={handleCreateCourseDialogOpenChange}
-              >
-                <DialogTrigger asChild>
-                  <Button
-                    type="button"
-                    className="rounded-[6px] bg-brand-500 font-semibold hover:bg-brand-600"
-                  >
-                    <Plus className="mr-2 h-5 w-5" />
-                    Add Courses
-                  </Button>
-                </DialogTrigger>
-                <DialogContent className="flex max-h-[min(90vh,calc(100dvh-2rem))] max-w-2xl flex-col gap-0 overflow-hidden border-none p-0">
-                  <div className="shrink-0">
-                    <DialogHeader className="p-8 pb-4">
-                      <DialogTitle className="text-2xl font-bold text-grayScale-700">
-                        Add New Course
-                      </DialogTitle>
-                      <DialogDescription className="text-sm text-grayScale-400">
-                        Create a course via{" "}
-                        <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px] text-grayScale-600">
-                          POST /programs/:program_id/courses
-                        </code>
-                        . Thumbnail can be a URL or a file from{" "}
-                        <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px] text-grayScale-600">
-                          POST /files/upload
-                        </code>
-                        .
-                      </DialogDescription>
-                    </DialogHeader>
-
-                    {/* Gradient Divider */}
-                    <div className="relative">
-                      <div
-                        className="absolute inset-0 flex items-center"
-                        aria-hidden="true"
-                      >
-                        <div className="w-full border-t border-grayScale-100" />
-                      </div>
-                      <div className="relative flex justify-center">
-                        <div
-                          className="h-[0.5px] w-full opacity-20 rounded-full"
-                          style={{
-                            background: "gray",
-                          }}
-                        />
-                      </div>
-                    </div>
-                  </div>
-
-                  <form
-                    className="flex min-h-0 flex-1 flex-col"
-                    onSubmit={(e) => {
-                      e.preventDefault();
-                      void handleCreateCourse();
-                    }}
-                  >
-                    <div className="min-h-0 flex-1 space-y-6 overflow-y-auto overscroll-contain px-8 py-4">
-                      <div className="space-y-2">
-                        <label className="text-[15px] font-medium text-grayScale-700">
-                          Course Name
-                        </label>
-                        <Input
-                          value={createName}
-                          onChange={(e) => setCreateName(e.target.value)}
-                          placeholder="e.g. Introduction to German A1"
-                          className="h-12 rounded-xl"
-                          disabled={createSaving || createUploadingThumbnail}
-                        />
-                      </div>
-
-                      <div className="space-y-2">
-                        <label className="text-[15px] font-medium text-grayScale-700">
-                          Description
-                        </label>
-                        <Textarea
-                          value={createDescription}
-                          onChange={(e) => setCreateDescription(e.target.value)}
-                          placeholder="Short summary of the course"
-                          rows={3}
-                          className="min-h-[88px] resize-y rounded-xl"
-                          disabled={createSaving || createUploadingThumbnail}
-                        />
-                      </div>
-
-                      <div className="space-y-2">
-                        <label className="text-[15px] font-medium text-grayScale-700">
-                          Thumbnail
-                        </label>
-                        <input
-                          ref={createThumbnailFileInputRef}
-                          type="file"
-                          accept="image/*"
-                          className="sr-only"
-                          onChange={(e) => void handleCreateCourseThumbnailFile(e)}
-                          disabled={createSaving || createUploadingThumbnail}
-                        />
-                        <button
-                          type="button"
-                          className="relative w-full cursor-pointer rounded-2xl border-2 border-dashed border-[#9E289133] bg-white p-10 text-left transition-all hover:border-[#9E289180] disabled:cursor-not-allowed disabled:opacity-60"
-                          disabled={createSaving || createUploadingThumbnail}
-                          onClick={() =>
-                            createThumbnailFileInputRef.current?.click()
-                          }
-                        >
-                          <div className="flex flex-col items-center justify-center">
-                            <div className="mb-4">
-                              <img
-                                src={uploadIcon}
-                                alt=""
-                                className="h-10 w-10"
-                              />
-                            </div>
-                            <p className="text-sm">
-                              <span className="font-bold text-[#9E2891]">
-                                {createUploadingThumbnail
-                                  ? "Uploading…"
-                                  : "Click to upload"}
-                              </span>{" "}
-                              <span className="text-grayScale-500">
-                                or paste a URL below
-                              </span>
-                            </p>
-                            <p className="mt-1 text-xs font-medium uppercase tracking-wider text-grayScale-400">
-                              JPG, PNG (max 5 MB)
-                            </p>
-                          </div>
-                        </button>
-                        {createThumbnail.trim() ? (
-                          <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-50">
-                            <img
-                              src={createThumbnail.trim()}
-                              alt=""
-                              className="h-28 w-full object-cover"
-                            />
-                          </div>
-                        ) : null}
-                        <Input
-                          value={createThumbnail}
-                          onChange={(e) => setCreateThumbnail(e.target.value)}
-                          className="h-12 rounded-xl"
-                          placeholder="https://…"
-                          disabled={createSaving || createUploadingThumbnail}
-                        />
-                      </div>
-                    </div>
-
-                    <div className="flex shrink-0 justify-end gap-3 border-t border-grayScale-100 bg-white px-8 py-4">
-                      <Button
-                        type="button"
-                        variant="outline"
-                        className="h-12 min-w-[120px] rounded-xl border-grayScale-200 font-semibold"
-                        disabled={createSaving || createUploadingThumbnail}
-                        onClick={() => handleCreateCourseDialogOpenChange(false)}
-                      >
-                        Cancel
-                      </Button>
-                      <Button
-                        type="submit"
-                        className="h-12 min-w-[160px] rounded-xl bg-brand-500 font-semibold hover:bg-brand-600"
-                        disabled={createSaving || createUploadingThumbnail}
-                      >
-                        {createSaving ? "Creating…" : "Create Course"}
-                      </Button>
-                    </div>
-                  </form>
-                </DialogContent>
-              </Dialog>
-            </>
-          ) : null}
-        </div>
-      </div>
-
-      {/* Gradient Divider */}
-      <div className="relative">
-        <div className="absolute inset-0 flex items-center" aria-hidden="true">
-          <div className="w-full border-t border-grayScale-200" />
-        </div>
-        <div className="relative flex justify-center">
-          <div
-            className="h-[0.5px] w-full opacity-20 rounded-full"
-            style={{
-              background: "gray",
-            }}
-          />
-        </div>
-      </div>
-
-      {loading ? (
-        <div className="flex flex-col items-center justify-center py-20">
-          <img src={spinnerSrc} alt="" className="h-10 w-10 animate-spin" />
-        </div>
-      ) : error && courses.length === 0 ? (
-        <div className="flex flex-col items-center justify-center rounded-xl border border-red-100 bg-red-50/60 px-6 py-14 text-center">
-          <img src={alertSrc} alt="" className="h-10 w-10" />
-          <p className="mt-3 text-sm font-medium text-red-700">{error}</p>
-          <Button
-            type="button"
-            variant="outline"
-            className="mt-4"
-            onClick={() => void loadData()}
-          >
-            Try again
-          </Button>
-        </div>
-      ) : courses.length === 0 ? (
-        <div className="rounded-xl border border-dashed border-grayScale-200 bg-grayScale-50/50 px-6 py-14 text-center">
-          <p className="text-sm font-medium text-grayScale-600">
-            No courses in this program yet
-          </p>
-          <p className="mt-1 text-sm text-grayScale-400">
-            Add courses using the button above when the flow is connected to the
-            API.
-          </p>
-        </div>
-      ) : (
-        <div className="flex flex-wrap gap-10">
-          {courses.map((course) => {
-            const modules =
-              course.module_count ?? course.modules_count ?? 0;
-            const lessons = course.lesson_count ?? course.videos_count ?? 0;
-            const practices =
-              course.practice_count ?? course.practices_count ?? 0;
-            const thumbnailSrc =
-              course.thumbnail?.trim() || course.thumbnail_url?.trim() || "";
-            return (
-              <Card
-                key={course.id}
-                className="group relative w-[290px] overflow-hidden border border-grayScale-100 shadow-soft transition-all duration-300 hover:shadow-lg"
-              >
-                <div
-                  className="absolute right-2 top-2 z-10 flex translate-y-1 gap-1 opacity-0 pointer-events-none transition-all duration-300 ease-out group-hover:translate-y-0 group-hover:opacity-100 group-hover:pointer-events-auto"
-                >
-                  <Button
-                    type="button"
-                    variant="secondary"
-                    size="icon"
-                    className="h-8 w-8 rounded-md bg-white/95 text-grayScale-600 shadow-sm transition-colors hover:bg-white"
-                    aria-label={`Edit ${course.name}`}
-                    onClick={() => openEditCourse(course)}
-                  >
-                    <Pencil className="h-3.5 w-3.5" />
-                  </Button>
-                  <Button
-                    type="button"
-                    variant="secondary"
-                    size="icon"
-                    className="h-8 w-8 rounded-md bg-white/95 text-red-600 shadow-sm transition-colors hover:bg-red-50"
-                    aria-label={`Delete ${course.name}`}
-                    onClick={() => setDeletingCourse(course)}
-                  >
-                    <Trash2 className="h-3.5 w-3.5" />
-                  </Button>
-                </div>
-                <div
-                  className="h-32 w-full bg-cover bg-center"
-                  style={
-                    thumbnailSrc
-                      ? {
-                          backgroundImage: `url(${thumbnailSrc})`,
-                        }
-                      : {
-                          background:
-                            "linear-gradient(135deg, #9E289180 0%, #9E2891 100%)",
-                        }
-                  }
-                />
-                <CardContent className="p-6">
-                  <h3 className="text-xl font-bold text-grayScale-700">
-                    {course.name}
-                  </h3>
-                  <p className="mt-2 text-[13px] leading-relaxed text-grayScale-500 line-clamp-2">
-                    {course.description?.trim() ? course.description : "—"}
-                  </p>
-
-                  <div className="my-6 grid grid-cols-3 gap-4 border-y border-grayScale-50 py-4">
-                    <div className="text-center">
-                      <p className="text-base font-bold text-grayScale-700">
-                        {modules}
-                      </p>
-                      <p className="text-[10px] font-medium uppercase tracking-wider text-grayScale-400">
-                        Modules
-                      </p>
-                    </div>
-                    <div className="text-center">
-                      <p className="text-base font-bold text-grayScale-700">
-                        {lessons}
-                      </p>
-                      <p className="text-[10px] font-medium uppercase tracking-wider text-grayScale-400">
-                        Lessons
-                      </p>
-                    </div>
-                    <div className="text-center">
-                      <p className="text-base font-bold text-grayScale-700">
-                        {practices}
-                      </p>
-                      <p className="text-[10px] font-medium uppercase tracking-wider text-grayScale-400">
-                        Practices
-                      </p>
-                    </div>
-                  </div>
-
-                  <div className="flex gap-3">
-                    <Button
-                      variant="outline"
-                      className="h-10 flex-1 rounded-[6px] border-brand-500 text-[13px] font-semibold text-brand-500 "
-                      onClick={() =>
-                        navigate(
-                          `/new-content/learn-english/${programIdParam}/courses/${course.id}`,
-                        )
-                      }
-                    >
-                      View Detail
-                    </Button>
-                    <Button className="h-10 flex-1 rounded-[6px] bg-brand-500 text-[13px] font-semibold ">
-                      Publish Practice
-                    </Button>
-                  </div>
-                </CardContent>
-              </Card>
-            );
-          })}
-        </div>
-      )}
-
-      <Dialog
-        open={editingCourse !== null}
-        onOpenChange={(open) => {
-          if (!open && (savingEdit || uploadingEditThumbnail)) return;
-          if (!open) closeEditCourse();
-        }}
-      >
-        <DialogContent className="max-w-lg">
-          <DialogHeader>
-            <DialogTitle>Edit course</DialogTitle>
-            <DialogDescription>
-              Update name, description, and thumbnail. Saved with{" "}
-              <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px]">
-                PUT /courses/:id
-              </code>
-              .
-            </DialogDescription>
-          </DialogHeader>
-          <div className="grid gap-4 py-2">
-            <div className="space-y-2">
-              <label className="text-sm font-medium text-grayScale-700">
-                Name
-              </label>
-              <Input
-                value={editName}
-                onChange={(e) => setEditName(e.target.value)}
-                className="rounded-xl"
-                placeholder="Course name"
-                disabled={savingEdit || uploadingEditThumbnail}
-              />
-            </div>
-            <div className="space-y-2">
-              <label className="text-sm font-medium text-grayScale-700">
-                Description
-              </label>
-              <Textarea
-                value={editDescription}
-                onChange={(e) => setEditDescription(e.target.value)}
-                rows={4}
-                className="min-h-[100px] resize-y rounded-xl"
-                placeholder="Short summary"
-                disabled={savingEdit || uploadingEditThumbnail}
-              />
-            </div>
-            <div className="space-y-2">
-              <label className="text-sm font-medium text-grayScale-700">
-                Thumbnail
-              </label>
-              <input
-                ref={editThumbnailFileInputRef}
-                type="file"
-                accept="image/*"
-                className="sr-only"
-                onChange={(e) => void handleEditCourseThumbnailFile(e)}
-                disabled={savingEdit || uploadingEditThumbnail}
-              />
-              <div className="flex flex-col gap-3 sm:flex-row sm:items-start">
-                <Button
-                  type="button"
-                  variant="outline"
-                  className="h-11 shrink-0 rounded-xl border-grayScale-200 font-semibold"
-                  disabled={savingEdit || uploadingEditThumbnail}
-                  onClick={() => editThumbnailFileInputRef.current?.click()}
-                >
-                  {uploadingEditThumbnail ? "Uploading…" : "Upload from computer"}
-                </Button>
-                {editThumbnail.trim() ? (
-                  <div className="flex-1 overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-50">
-                    <img
-                      src={editThumbnail.trim()}
-                      alt=""
-                      className="h-24 w-full object-cover"
-                    />
-                  </div>
-                ) : null}
-              </div>
-              <Input
-                value={editThumbnail}
-                onChange={(e) => setEditThumbnail(e.target.value)}
-                className="rounded-xl"
-                placeholder="Or paste image URL (https://…)"
-                disabled={savingEdit || uploadingEditThumbnail}
-              />
-            </div>
-          </div>
-          <DialogFooter className="gap-2 sm:gap-0">
-            <Button
-              type="button"
-              variant="outline"
-              onClick={closeEditCourse}
-              disabled={savingEdit || uploadingEditThumbnail}
-            >
-              Cancel
-            </Button>
-            <Button
-              type="button"
-              className="bg-brand-500 hover:bg-brand-600"
-              disabled={savingEdit || uploadingEditThumbnail}
-              onClick={() => void handleSaveEditCourse()}
-            >
-              {savingEdit ? "Saving…" : "Save changes"}
-            </Button>
-          </DialogFooter>
-        </DialogContent>
-      </Dialog>
-
-      {deletingCourse && (
-        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 backdrop-blur-sm">
-          <div className="mx-4 w-full max-w-sm animate-in fade-in zoom-in-95 rounded-2xl bg-white shadow-2xl">
-            <div className="flex items-center justify-between border-b border-grayScale-100 px-6 py-5">
-              <h2 className="text-lg font-bold text-grayScale-700">Delete course</h2>
-              <button
-                type="button"
-                onClick={() => !deleting && setDeletingCourse(null)}
-                disabled={deleting}
-                className="grid h-8 w-8 place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-grayScale-100 hover:text-grayScale-600 disabled:pointer-events-none disabled:opacity-50"
-              >
-                <X className="h-5 w-5" />
-              </button>
-            </div>
-
-            <div className="px-6 py-6">
-              <div className="mx-auto mb-4 grid h-12 w-12 place-items-center rounded-full bg-red-50">
-                <Trash2 className="h-5 w-5 text-red-500" />
-              </div>
-              <p className="text-center text-sm leading-relaxed text-grayScale-600">
-                Are you sure you want to delete{" "}
-                <span className="font-semibold text-grayScale-700">
-                  {deletingCourse.name}
-                </span>
-                ? This cannot be undone. Related modules and content may be
-                affected depending on your backend.
-              </p>
-            </div>
-
-            <div className="flex flex-col-reverse gap-3 border-t border-grayScale-100 px-6 py-4 sm:flex-row sm:justify-end">
-              <Button
-                type="button"
-                variant="outline"
-                onClick={() => setDeletingCourse(null)}
-                disabled={deleting}
-                className="w-full sm:w-auto"
-              >
-                Cancel
-              </Button>
-              <Button
-                type="button"
-                className="w-full bg-red-500 shadow-sm transition-all hover:bg-red-600 hover:shadow-md sm:w-auto"
-                disabled={deleting}
-                onClick={() => void handleConfirmDeleteCourse()}
-              >
-                {deleting ? "Deleting…" : "Delete"}
-              </Button>
-            </div>
-          </div>
-        </div>
-      )}
-    </div>
-  );
-}

src/pages/content-management/ProgramDetailPage.tsx

@@ -1,273 +0,0 @@
-import { Link, useParams, useNavigate } from "react-router-dom";
-import {
-  ArrowLeft,
-  Plus,
-  FileText,
-  ClipboardList,
-  ListChecks,
-  ChevronRight,
-  X,
-  Upload,
-} from "lucide-react";
-import { Button } from "../../components/ui/button";
-import { Card } from "../../components/ui/card";
-import {
-  Dialog,
-  DialogContent,
-  DialogHeader,
-  DialogTitle,
-  DialogTrigger,
-  DialogClose,
-} from "../../components/ui/dialog";
-import { Input } from "../../components/ui/input";
-import { Select } from "../../components/ui/select";
-import uploadIcon from "../../assets/icons/upload.png";
-
-export function ProgramDetailPage() {
-  const navigate = useNavigate();
-  const { programType } = useParams<{ programType: string }>();
-
-  // Mock data for "proficiency" program type
-  const programs: Record<string, any> = {
-    proficiency: {
-      title: "English Proficiency Exams",
-      description:
-        "Manage exam-based learning programs such as Duolingo and IELTS.",
-      courses: [
-        {
-          id: "duolingo",
-          name: "Duolingo English Test",
-          description:
-            "Adaptive exam-style practice for speaking, writing, reading, and listening.",
-          coursesCount: 6,
-          questionTypesCount: 13,
-          logo: (
-            <div className="h-14 w-14 rounded-full bg-[#FFB800] flex items-center justify-center relative overflow-hidden">
-              {/* Simple Duolingo-like representation if image not available */}
-              <div className="absolute inset-0 bg-gradient-to-br from-white/20 to-transparent" />
-              <div className="h-8 w-8 bg-white rounded-full flex items-center justify-center">
-                <div className="h-4 w-4 bg-[#FFB800] rounded-sm transform rotate-45" />
-              </div>
-            </div>
-          ),
-          buttonText: "Manage Detail",
-        },
-        {
-          id: "ielts",
-          name: "IELTS Academic",
-          description:
-            "Full preparation for IELTS speaking, writing, listening, and reading.",
-          coursesCount: 4,
-          questionTypesCount: 18,
-          logo: (
-            <div className="flex items-center gap-1">
-              <span className="text-[28px] font-black tracking-tighter text-[#E11D48] ">
-                IELTS
-              </span>
-              <span className="text-[8px] font-bold text-[#E11D48] mt-2 tracking-widest uppercase">
-                ™
-              </span>
-            </div>
-          ),
-          buttonText: "View Detail",
-        },
-      ],
-    },
-    "skill-based": {
-      title: "Skill-Based Courses",
-      description:
-        "Practice-focused communication and skills training for real-world scenarios.",
-      courses: [], // To be implemented or shown if needed
-    },
-  };
-
-  const currentProgram =
-    programs[programType || "proficiency"] || programs.proficiency;
-
-  return (
-    <div className="space-y-8 animate-in fade-in duration-500 pb-10">
-      {/* Navigation */}
-      <Link
-        to="/new-content/courses"
-        className="flex items-center gap-2.5 text-[15px] font-semibold text-grayScale-600 hover:text-brand-500 transition-colors pt-4 group"
-      >
-        <ArrowLeft className="h-5 w-5 transition-transform group-hover:-translate-x-1" />
-        Back
-      </Link>
-
-      {/* Header section */}
-      <div className="flex items-start justify-between">
-        <div className="space-y-2">
-          <h1 className="text-[26px] font-medium tracking-tight text-grayScale-900">
-            {currentProgram.title}
-          </h1>
-          <p className="max-w-2xl text-[15px] font-medium  text-grayScale-500">
-            {currentProgram.description}
-          </p>
-        </div>
-
-        <div className="flex items-center gap-3 pt-2">
-          <Dialog>
-            <DialogTrigger asChild>
-              <Button className="h-10 px-6 rounded-[6px] bg-brand-500 font-bold text-white transition-all flex items-center gap-2">
-                <Plus className="h-5 w-5" />
-                Create Course
-              </Button>
-            </DialogTrigger>
-            <DialogContent className="max-w-[600px] p-0 border-none rounded-[16px] overflow-hidden">
-              <div className="bg-white">
-                <DialogHeader className="px-8 py-6 border-b border-grayScale-200 flex flex-row items-center justify-between">
-                  <DialogTitle className="text-[20px] font-bold relative top-2 text-grayScale-900">
-                    Create Course
-                  </DialogTitle>
-                </DialogHeader>
-
-                <div className="p-8 space-y-8">
-                  <div className="space-y-3">
-                    <label className="text-[15px] text-grayScale-800">
-                      Name
-                    </label>
-                    <Input
-                      placeholder="e.g. TOEFL, IELTS"
-                      className="h-12 border-grayScale-400 rounded-[8px] px-4 placeholder:text-grayScale-400 text-[15px] focus:ring-brand-500/20"
-                    />
-                  </div>
-
-                  <div className="space-y-3">
-                    <label className="text-[15px] text-grayScale-800">
-                      Course Order
-                    </label>
-                    <Select defaultValue="1">
-                      <option value="1">1</option>
-                      <option value="2">2</option>
-                      <option value="3">3</option>
-                    </Select>
-                  </div>
-
-                  {/* Thumbnail Field */}
-                  <div className="space-y-3">
-                    <label className="text-[15px] text-grayScale-800">
-                      Thumbnail
-                    </label>
-                    <div className="relative group cursor-pointer">
-                      <div className="flex flex-col items-center justify-center rounded-[12px] border-2 border-dashed border-grayScale-400 bg-white py-8 px-10 transition-all ">
-                        <div className="mb-4">
-                          <img
-                            src={uploadIcon}
-                            alt="Upload icon"
-                            className="h-10 w-10"
-                          />
-                        </div>
-                        <p className="text-[15px]">
-                          <span className="text-brand-500 font-bold hover:underline">
-                            Click to upload
-                          </span>{" "}
-                          <span className="text-grayScale-500">
-                            or drag and drop
-                          </span>
-                        </p>
-                        <p className="mt-1.5 text-[12px] text-grayScale-400 uppercase tracking-widest">
-                          JPG, PNG (MAX 1 MB)
-                        </p>
-                      </div>
-                    </div>
-                  </div>
-                </div>
-
-                <div className="px-8 py-6 bg-grayScale-50/30 border-t border-grayScale-50 flex justify-end gap-3">
-                  <DialogClose asChild>
-                    <Button
-                      variant="outline"
-                      className="h-11 px-8 rounded-[8px] border-grayScale-200 text-grayScale-700 font-bold"
-                    >
-                      Cancel
-                    </Button>
-                  </DialogClose>
-                  <Button className="h-11 px-8 rounded-[8px] bg-brand-500 text-white font-bold hover:bg-brand-600">
-                    Create Program
-                  </Button>
-                </div>
-              </div>
-            </DialogContent>
-          </Dialog>
-
-          <Button
-            variant="outline"
-            className="h-10 px-6 rounded-[6px] border-brand-500 text-brand-500 font-bold  flex items-center gap-2"
-            onClick={() =>
-              navigate(`/new-content/courses/${programType}/attach-practice`)
-            }
-          >
-            <FileText className="h-5 w-5" />
-            Attach Practice
-          </Button>
-        </div>
-      </div>
-
-      {/* Gradient Divider */}
-      <div className="relative">
-        <div className="absolute inset-0 flex items-center" aria-hidden="true">
-          <div className="w-full border-t border-grayScale-200" />
-        </div>
-        <div className="relative flex justify-center">
-          <div
-            className="h-[0.5px] w-full opacity-20 rounded-full"
-            style={{
-              background: "gray",
-            }}
-          />
-        </div>
-      </div>
-
-      {/* Cards Grid */}
-      <div className="flex flex-wrap gap-8 mt-10">
-        {currentProgram.courses.map((course: any) => (
-          <Card
-            key={course.id}
-            className="bg-white w-[500px] rounded-[20px] border border-grayScale-100 p-6 flex flex-col items-start  shadow-sm hover:shadow-md transition-shadow"
-          >
-            {/* Logo */}
-            <div className="h-16 flex items-center">{course.logo}</div>
-
-            {/* Content */}
-            <div className="space-y-4 pt-2 flex-1">
-              <h3 className="text-[18px] font-medium text-grayScale-900">
-                {course.name}
-              </h3>
-              <p className="text-[14px] text-grayScale-500 font-medium">
-                {course.description}
-              </p>
-            </div>
-
-            {/* Badges/Stats */}
-            <div className="flex items-center pt-4 gap-4">
-              <div className="h-10 px-4 rounded-[6px] bg-grayScale-100 border border-grayScale-100 flex items-center gap-2 text-grayScale-700">
-                <ClipboardList className="h-3 w-3 text-grayScale-400" />
-                <span className="text-[12px] ">
-                  {course.coursesCount} Courses
-                </span>
-              </div>
-              <div className="h-10 px-4 rounded-[6px] bg-grayScale-100 border border-grayScale-100 flex items-center gap-2 text-grayScale-700">
-                <ListChecks className="h-3 w-3 text-grayScale-400" />
-                <span className="text-[12px] ">
-                  {course.questionTypesCount} Question Types
-                </span>
-              </div>
-            </div>
-
-            {/* Action Button */}
-            <Button
-              className="w-full mt-4 h-10 bg-brand-500  text-white rounded-[8px] font-bold flex items-center justify-center gap-2 group/btn"
-              onClick={() =>
-                navigate(`/new-content/courses/${programType}/${course.id}`)
-              }
-            >
-              {course.buttonText}
-              <ChevronRight className="h-5 w-5 transition-transform group-hover/btn:translate-x-1" />
-            </Button>
-          </Card>
-        ))}
-      </div>
-    </div>
-  );
-}

src/pages/content-management/ProgramTypeSelectionPage.tsx

@@ -1,84 +0,0 @@
-import { Link } from "react-router-dom";
-import { GraduationCap, Brain } from "lucide-react";
-import { Button } from "../../components/ui/button";
-
-export function ProgramTypeSelectionPage() {
-  return (
-    <div className="space-y-8 animate-in fade-in slide-in-from-bottom-4 duration-500">
-      {/* Header section */}
-      <div className="flex items-start justify-between">
-        <div className="space-y-1.5 pt-2">
-          <h1 className="text-[28px] font-bold tracking-tight text-grayScale-900">
-            Courses
-          </h1>
-          <p className="max-w-2xl text-[15px] font-medium  text-grayScale-500">
-            Organize courses under skill-based learning or English proficiency
-            exams. Select a program type to manage curriculum and modules.
-          </p>
-        </div>
-        <Link to="/new-content/question-types">
-          <Button className="h-10 px-6 rounded-[6px] bg-brand-500 font-bold text-white shadow-sm hover:bg-brand-600 transition-all flex items-center gap-2 mt-4">
-            Manage Question Types
-          </Button>
-        </Link>
-      </div>
-
-      {/* Gradient Divider */}
-      <div className="relative">
-        <div className="absolute inset-0 flex items-center" aria-hidden="true">
-          <div className="w-full border-t border-grayScale-200" />
-        </div>
-        <div className="relative flex justify-center">
-          <div
-            className="h-[0.5px] w-full opacity-20 rounded-full"
-            style={{
-              background: "gray",
-            }}
-          />
-        </div>
-      </div>
-
-      {/* Selection Cards Grid */}
-      <div className="flex flex-warp gap-10 pt-4">
-        {/* Skill-Based Courses Card */}
-        <Link to="/new-content/courses/skill-based" className="group h-full">
-          <div className="bg-white rounded-[6px] w-[500px] border border-grayScale-100 px-10 py-12 h-full transition-all flex flex-col items-start gap-10">
-            <div className="h-16 w-16 rounded-full bg-brand-50/10 flex items-center justify-center">
-              <Brain className="h-8 w-8 text-brand-500" />
-            </div>
-
-            <div className="space-y-3 flex-1">
-              <h3 className="text-[20px] font-bold text-grayScale-900">
-                Skill-Based Courses
-              </h3>
-              <p className="text-[15px] leading-relaxed text-grayScale-500 font-medium">
-                Practice-focused communication and skills training. Create
-                modules for vocabulary, grammar, and real-world conversation
-                scenarios.
-              </p>
-            </div>
-          </div>
-        </Link>
-
-        {/* English Proficiency Exams Card */}
-        <Link to="/new-content/courses/proficiency" className="group h-full">
-          <div className="bg-white w-[500px] rounded-[6px] border border-grayScale-100 px-10 py-12 h-full transition-all flex flex-col items-start gap-10">
-            <div className="h-16 w-16 rounded-full bg-brand-50/10 flex items-center justify-center">
-              <GraduationCap className="h-8 w-8 text-brand-500" />
-            </div>
-
-            <div className="space-y-3 flex-1">
-              <h3 className="text-[20px] font-bold text-grayScale-900 transition-colors">
-                English Proficiency Exams
-              </h3>
-              <p className="text-[15px] leading-relaxed text-grayScale-500 font-medium">
-                Exam preparation courses such as IELTS, and Duolingo. Structure
-                content by band scores, sections, and mock tests.
-              </p>
-            </div>
-          </div>
-        </Link>
-      </div>
-    </div>
-  );
-}

src/pages/content-management/QuestionTypeLibraryPage.tsx

@@ -1,127 +0,0 @@
-import { useState } from "react";
-import { Link } from "react-router-dom";
-import { ArrowLeft, Plus, Search } from "lucide-react";
-import { Button } from "../../components/ui/button";
-import { Input } from "../../components/ui/input";
-import { Select } from "../../components/ui/select";
-import { Card } from "../../components/ui/card";
-import { cn } from "../../lib/utils";
-import { QuestionTypeCard } from "./components/QuestionTypeCard";
-
-export function QuestionTypeLibraryPage() {
-  const [activeTab, setActiveTab] = useState("All");
-
-  const questionTypes = [
-    {
-      title: "Describe a Photo",
-      exam: "DUOLINGO" as const,
-      skill: "Speaking" as const,
-      variations: 12,
-      status: "Published" as const,
-    },
-    {
-      title: "Write About the Topic",
-      exam: "DUOLINGO" as const,
-      skill: "Writing" as const,
-      variations: 12,
-      status: "Published" as const,
-    },
-    {
-      title: "Fill in the Blanks",
-      exam: "IELTS" as const,
-      skill: "Writing" as const,
-      variations: 12,
-      status: "Published" as const,
-    },
-    {
-      title: "Describe a Photo",
-      exam: "DUOLINGO" as const,
-      skill: "Speaking" as const,
-      variations: 12,
-      status: "Published" as const,
-    },
-  ];
-
-  return (
-    <div className="space-y-8 animate-in fade-in duration-500 pb-20">
-      {/* Navigation & Header */}
-      <div className="space-y-6">
-        <Link
-          to="/new-content/courses"
-          className="flex items-center gap-2 text-[15px] font-bold text-grayScale-600 transition-colors hover:text-brand-500 group w-fit"
-        >
-          <ArrowLeft className="h-5 w-5 transition-transform group-hover:-translate-x-1" />
-          Back to Courses
-        </Link>
-
-        <div className="flex items-start justify-between">
-          <div className="space-y-1">
-            <h1 className="text-[32px] font-medium text-grayScale-900 tracking-tight">
-              Question Type Library
-            </h1>
-            <p className="text-grayScale-500 text-[16px] font-medium">
-              Create and manage reusable question structures for practices and
-              assessments.
-            </p>
-          </div>
-          <Link to="/new-content/question-types/create">
-            <Button className="h-12 px-8 rounded-[10px] bg-[#9E2891] font-bold text-white shadow-lg shadow-brand-500/10 hover:bg-[#8A237E] transition-all flex items-center gap-3">
-              <Plus className="h-5 w-5" />
-              Create Question Type
-            </Button>
-          </Link>
-        </div>
-      </div>
-
-      {/* Control Bar */}
-      <Card className="p-6 border-grayScale-200 rounded-2xl bg-white space-y-6">
-        <div className="flex items-center gap-4">
-          <div className="relative flex-1">
-            <Search className="absolute left-4 top-1/2 -translate-y-1/2 h-5 w-5 text-grayScale-600" />
-            <Input
-              className="h-10 pl-12 rounded-[6px] border-grayScale-200 placeholder:text-grayScale-600 bg-[#F8FAFC] transition-all text-sm"
-              placeholder="Search by practice name, ID, or keywords..."
-            />
-          </div>
-          <Select className="h-10 w-[180px] rounded-[6px] border-grayScale-200 placeholder:text-grayScale-600 text-grayScale-700 bg-[#F8FAFC] transition-all text-sm">
-            <option>All Exams</option>
-            <option>IELTS</option>
-            <option>Duolingo</option>
-          </Select>
-          <Select className="h-10 w-[180px] rounded-[6px] border-grayScale-200 placeholder:text-grayScale-600 text-grayScale-700 bg-[#F8FAFC] transition-all text-sm">
-            <option>All Skills</option>
-            <option>Speaking</option>
-            <option>Writing</option>
-          </Select>
-        </div>
-
-        <div className="flex items-center gap-3">
-          <span className="text-[12px] font-medium text-grayScale-400 uppercase tracking-widest mr-2">
-            STATUS:
-          </span>
-          {["All", "Published", "Drafts", "Archived"].map((tab) => (
-            <button
-              key={tab}
-              onClick={() => setActiveTab(tab)}
-              className={cn(
-                "h-10 px-4 rounded-full text-[13px] font-medium transition-all",
-                activeTab === tab
-                  ? "bg-[#9E2891] text-white shadow-md shadow-brand-500/20"
-                  : "bg-grayScale-100 text-grayScale-400 hover:bg-grayScale-100",
-              )}
-            >
-              {tab}
-            </button>
-          ))}
-        </div>
-      </Card>
-
-      {/* Grid of Cards */}
-      <div className="grid grid-cols-4 gap-6">
-        {questionTypes.map((qt, index) => (
-          <QuestionTypeCard key={index} {...qt} />
-        ))}
-      </div>
-    </div>
-  );
-}

src/pages/content-management/SpeakingPage.tsx

@@ -1,5 +1,5 @@
 import { type ChangeEvent, useCallback, useEffect, useMemo, useRef, useState } from "react"
-import { ArrowLeft, ChevronDown, ChevronRight, Image as ImageIcon, Mic, Plus, Trash2, Upload } from "lucide-react"
+import { ArrowLeft, ChevronDown, ChevronRight, Image as ImageIcon, Loader2, Mic, Plus, Trash2, Upload } from "lucide-react"
 import { Card, CardContent, CardHeader, CardTitle } from "../../components/ui/card"
 import { Button } from "../../components/ui/button"
 import { Input } from "../../components/ui/input"
@@ -1926,7 +1926,7 @@ export function SpeakingPage() {
                           className="gap-1.5"
                         >
                           {uploadingIntroVideo ? (
-                            <SpinnerIcon className="h-4 w-4" alt="" />
+                            <Loader2 className="h-4 w-4 animate-spin" />
                           ) : (
                             <Upload className="h-4 w-4" />
                           )}

src/pages/content-management/SubCategoryCoursesPage.tsx

@@ -1,143 +0,0 @@
-import { useEffect, useState } from "react"
-import { Link, useNavigate, useParams } from "react-router-dom"
-import { ArrowLeft, BookOpen, ChevronRight } from "lucide-react"
-import spinnerSrc from "../../assets/Circular-indeterminate progress indicator.svg"
-import alertSrc from "../../assets/Alert.svg"
-import { Badge } from "../../components/ui/badge"
-import { getCoursesBySubCategoryId, getSubCategoriesByCategoryId } from "../../api/courses.api"
-import type { CategorySubCategoryListItem, SubCategoryCourseListItem } from "../../types/course.types"
-import { cn } from "../../lib/utils"
-
-export function SubCategoryCoursesPage() {
-  const { categoryId, subCategoryId } = useParams<{
-    categoryId: string
-    subCategoryId: string
-  }>()
-  const navigate = useNavigate()
-
-  const [subCategory, setSubCategory] = useState<CategorySubCategoryListItem | null>(null)
-  const [courses, setCourses] = useState<SubCategoryCourseListItem[]>([])
-  const [loading, setLoading] = useState(true)
-  const [error, setError] = useState<string | null>(null)
-
-  useEffect(() => {
-    const run = async () => {
-      if (!categoryId || !subCategoryId) return
-      const cid = Number(categoryId)
-      const sid = Number(subCategoryId)
-      if (!Number.isFinite(cid) || !Number.isFinite(sid)) {
-        setError("Invalid route parameters")
-        setLoading(false)
-        return
-      }
-
-      setLoading(true)
-      setError(null)
-      try {
-        const [subRes, coursesRes] = await Promise.all([
-          getSubCategoriesByCategoryId(cid),
-          getCoursesBySubCategoryId(sid),
-        ])
-        const list = subRes.data?.data?.sub_categories ?? []
-        const found = Array.isArray(list) ? list.find((s) => s.id === sid) : undefined
-        setSubCategory(found ?? null)
-
-        const raw = coursesRes.data?.data?.courses
-        setCourses(Array.isArray(raw) ? raw : [])
-      } catch (e) {
-        console.error(e)
-        setError("Failed to load courses for this sub-category")
-        setCourses([])
-      } finally {
-        setLoading(false)
-      }
-    }
-    void run()
-  }, [categoryId, subCategoryId])
-
-  if (loading) {
-    return (
-      <div className="flex flex-col items-center justify-center py-32">
-        <img src={spinnerSrc} alt="" className="h-10 w-10 animate-spin" />
-      </div>
-    )
-  }
-
-  if (error) {
-    return (
-      <div className="flex items-center justify-center py-32">
-        <div className="mx-4 flex w-full max-w-md items-center gap-3 rounded-2xl border border-red-100 bg-red-50 px-6 py-5 shadow-sm">
-          <img src={alertSrc} alt="" className="h-10 w-10 shrink-0" />
-          <p className="text-sm font-medium text-red-600">{error}</p>
-        </div>
-      </div>
-    )
-  }
-
-  const label = subCategory?.name ?? "Sub-category"
-
-  return (
-    <div className="space-y-6">
-      <div className="rounded-2xl border border-grayScale-100 bg-white px-5 py-4 shadow-sm sm:px-6 sm:py-5">
-        <div className="flex flex-col gap-4 sm:flex-row sm:items-start sm:justify-between">
-          <div className="flex items-start gap-3.5">
-            <Link
-              to={`/content/category/${categoryId}/courses`}
-              className="mt-0.5 grid h-9 w-9 shrink-0 place-items-center rounded-xl bg-grayScale-50 text-grayScale-500 transition-colors hover:bg-brand-50 hover:text-brand-600"
-            >
-              <ArrowLeft className="h-4 w-4" />
-            </Link>
-            <div>
-              <p className="text-xs font-medium text-grayScale-400">Sub-category</p>
-              <h1 className="text-xl font-bold text-grayScale-700 sm:text-2xl">{label}</h1>
-              <p className="mt-0.5 text-sm text-grayScale-400">
-                {courses.length} course{courses.length !== 1 ? "s" : ""} — open a course to manage sub-modules
-              </p>
-            </div>
-          </div>
-        </div>
-      </div>
-
-      {courses.length === 0 ? (
-        <div className="rounded-xl border border-dashed border-grayScale-200 bg-grayScale-50/50 px-6 py-14 text-center">
-          <p className="text-sm font-medium text-grayScale-600">No courses in this sub-category yet</p>
-          <p className="mt-1 text-sm text-grayScale-400">Add a course from your authoring flow or API.</p>
-        </div>
-      ) : (
-        <div className="space-y-3">
-          {courses.map((c) => (
-            <button
-              key={c.id}
-              type="button"
-              onClick={() =>
-                navigate(`/content/category/${categoryId}/courses/${c.id}/sub-modules`)
-              }
-              className={cn(
-                "flex w-full items-center justify-between gap-4 rounded-xl border border-grayScale-200 bg-white px-4 py-4 text-left shadow-sm transition-all",
-                "hover:border-brand-200 hover:bg-brand-50/40 hover:shadow-md",
-              )}
-            >
-              <div className="flex min-w-0 items-center gap-3">
-                <div className="grid h-10 w-10 shrink-0 place-items-center rounded-lg bg-grayScale-50 text-grayScale-400">
-                  <BookOpen className="h-5 w-5" />
-                </div>
-                <div className="min-w-0">
-                  <p className="font-semibold text-grayScale-800">{c.title}</p>
-                  {c.description?.trim() ? (
-                    <p className="mt-0.5 line-clamp-2 text-sm text-grayScale-500">{c.description}</p>
-                  ) : null}
-                </div>
-              </div>
-              <div className="flex shrink-0 items-center gap-3">
-                <Badge variant={c.is_active ? "success" : "secondary"} className="text-[11px]">
-                  {c.is_active ? "Active" : "Inactive"}
-                </Badge>
-                <ChevronRight className="h-5 w-5 text-grayScale-300" />
-              </div>
-            </button>
-          ))}
-        </div>
-      )}
-    </div>
-  )
-}

src/pages/content-management/SubCourseContentPage.tsx

@@ -103,10 +103,9 @@ export function SubModuleContentPage() {
 
       try {
         const subCoursesRes = await getSubModulesByCourse(Number(courseId))
-        const list = subCoursesRes.data?.data?.sub_courses
+        const foundSubCourse = subCoursesRes.data.data.sub_courses?.find(
-        const foundSubCourse = Array.isArray(list)
+          (sc) => sc.id === Number(subModuleId)
-          ? list.find((sc) => sc.id === Number(subModuleId))
+        )
-          : undefined
         setSubCourse(foundSubCourse ?? null)
       } catch (err) {
         console.error("Failed to fetch course data:", err)
@@ -124,9 +123,7 @@ export function SubModuleContentPage() {
     setPracticesLoading(true)
     try {
       const res = await getQuestionSetsByOwner("SUB_MODULE", Number(subModuleId))
-      const raw = res.data?.data
+      setPractices(res.data.data ?? [])
-      const list = Array.isArray(raw) ? raw : (raw as { question_sets?: QuestionSet[] })?.question_sets ?? []
-      setPractices(Array.isArray(list) ? list : [])
     } catch (err) {
       console.error("Failed to fetch practices:", err)
     } finally {
@@ -139,8 +136,7 @@ export function SubModuleContentPage() {
     setVideosLoading(true)
     try {
       const res = await getVideosBySubModule(Number(subModuleId))
-      const vids = res.data?.data?.videos ?? []
+      setVideos(res.data.data.videos ?? [])
-      setVideos(Array.isArray(vids) ? vids : [])
     } catch (err) {
       console.error("Failed to fetch videos:", err)
     } finally {
@@ -158,7 +154,7 @@ export function SubModuleContentPage() {
         limit: ratingsPageSize,
         offset,
       })
-      setRatings(res.data?.data ?? [])
+      setRatings(res.data.data ?? [])
     } catch (err) {
       console.error("Failed to fetch ratings:", err)
     } finally {
@@ -409,8 +405,8 @@ export function SubModuleContentPage() {
       const idMatch = video.video_url?.match(/(\d{5,})/)
       const vimeoId = idMatch?.[1] ?? "76979871" // fallback to Big Buck Bunny
       const res = await getVimeoSample(vimeoId)
-      setPreviewIframe(res.data?.data?.iframe ?? "")
+      setPreviewIframe(res.data.data.iframe)
-      setPreviewVideo(res.data?.data?.video ?? null)
+      setPreviewVideo(res.data.data.video)
     } catch {
       setPreviewIframe("")
     } finally {
@@ -418,7 +414,7 @@ export function SubModuleContentPage() {
     }
   }
 
-  const filteredPractices = (Array.isArray(practices) ? practices : []).filter((practice) => {
+  const filteredPractices = practices.filter((practice) => {
     if (statusFilter === "all") return true
     if (statusFilter === "published") return practice.status === "PUBLISHED"
     if (statusFilter === "draft") return practice.status === "DRAFT"
@@ -444,19 +440,6 @@ export function SubModuleContentPage() {
     )
   }
 
-  if (!subCourse) {
-    return (
-      <div className="flex flex-col items-center justify-center py-20">
-        <img src={alertSrc} alt="" className="h-12 w-12" />
-        <p className="mt-3 text-sm font-medium text-grayScale-600">Sub-module not found</p>
-        <p className="mt-1 text-sm text-grayScale-400">It may have been removed or the link is invalid.</p>
-        <Button className="mt-6" variant="outline" asChild>
-          <Link to={`/content/category/${categoryId}/courses/${courseId}/sub-modules`}>Back to sub-modules</Link>
-        </Button>
-      </div>
-    )
-  }
-
   return (
     <div className="space-y-6">
       {/* Back Button */}
@@ -607,7 +590,7 @@ export function SubModuleContentPage() {
                       <div className="flex items-center gap-3 text-xs text-grayScale-400">
                         <div className="flex items-center gap-1.5">
                           <Layers className="h-3.5 w-3.5" />
-                          <span>{String(practice.owner_type ?? "SUB_MODULE").replace(/_/g, " ")}</span>
+                          <span>{practice.owner_type.replace("_", " ")}</span>
                         </div>
                         {practice.shuffle_questions && (
                           <span className="rounded-full bg-amber-50 px-2 py-0.5 text-[11px] font-medium text-amber-600 ring-1 ring-inset ring-amber-200">Shuffle ON</span>
@@ -616,13 +599,11 @@ export function SubModuleContentPage() {
 
                       <div className="mt-auto flex items-center justify-between border-t border-grayScale-100 pt-3">
                         <span className="text-xs font-medium text-grayScale-400">
-                          {practice.created_at
+                          {new Date(practice.created_at).toLocaleDateString("en-US", {
-                            ? new Date(practice.created_at).toLocaleDateString("en-US", {
+                            month: "short",
-                                month: "short",
+                            day: "numeric",
-                                day: "numeric",
+                            year: "numeric",
-                                year: "numeric",
+                          })}
-                              })
-                            : "—"}
                         </span>
                         <div className="flex gap-0.5" onClick={(e) => e.stopPropagation()}>
                           <button

src/pages/content-management/UnitManagementPage.tsx

@@ -1,254 +0,0 @@
-import { Link, useParams, useNavigate } from "react-router-dom";
-import {
-  ArrowLeft,
-  Plus,
-  MessageCircle,
-  PlayCircle,
-  ClipboardCheck,
-  ArrowRight,
-  X,
-} from "lucide-react";
-import { Button } from "../../components/ui/button";
-import { Card } from "../../components/ui/card";
-import {
-  Dialog,
-  DialogContent,
-  DialogHeader,
-  DialogTitle,
-  DialogTrigger,
-  DialogClose,
-} from "../../components/ui/dialog";
-import { Input } from "../../components/ui/input";
-import { Select } from "../../components/ui/select";
-import uploadIcon from "../../assets/icons/upload.png";
-
-export function UnitManagementPage() {
-  const navigate = useNavigate();
-  const { programType, courseId, unitId } = useParams<{
-    programType: string;
-    courseId: string;
-    unitId: string;
-  }>();
-
-  // Mock titles
-  const unitTitles: Record<string, string> = {
-    unit1: "Greetings & Introductions",
-    unit2: "Speaking",
-    unit3: "Reading",
-  };
-
-  const unitDisplayName =
-    unitTitles[unitId || ""] || "Greetings & Introductions";
-
-  const modules = [
-    {
-      id: "mod1",
-      name: "Module 1: Basic Phrases",
-      description: "Learn essential phrases for daily conversations.",
-      videos: 3,
-      practices: 3,
-      gradient:
-        "linear-gradient(135deg, rgba(158, 40, 145, 0.4) 0%, rgba(158, 40, 145, 0.7) 100%)",
-    },
-    {
-      id: "mod2",
-      name: "Module 1: Basic Phrases", // Matching Image 2092-1 labels
-      description: "Learn essential phrases for daily conversations.",
-      videos: 3,
-      practices: 3,
-      gradient:
-        "linear-gradient(135deg, rgba(79, 70, 229, 0.4) 0%, rgba(79, 70, 229, 0.7) 100%)",
-    },
-    {
-      id: "mod3",
-      name: "Module 1: Basic Phrases",
-      description: "Learn essential phrases for daily conversations.",
-      videos: 3,
-      practices: 3,
-      gradient:
-        "linear-gradient(135deg, rgba(124, 58, 237, 0.4) 0%, rgba(124, 58, 237, 0.7) 100%)",
-    },
-  ];
-
-  return (
-    <div className="space-y-8 animate-in fade-in duration-500 pb-10">
-      {/* Navigation */}
-      <Link
-        to={`/new-content/courses/${programType}/${courseId}`}
-        className="flex items-center gap-2.5 text-[15px] font-semibold text-grayScale-600 hover:text-brand-500 transition-colors pt-4 group"
-      >
-        <ArrowLeft className="h-5 w-5 transition-transform group-hover:-translate-x-1" />
-        Back to Courses
-      </Link>
-
-      {/* Header section */}
-      <div className="flex items-start justify-between">
-        <h1 className="text-[28px] font-medium tracking-tight text-grayScale-900">
-          {unitDisplayName}
-        </h1>
-
-        <Dialog>
-          <DialogTrigger asChild>
-            <Button className="h-10 px-6 rounded-[6px] bg-brand-500 font-bold text-white shadow-sm hover:bg-brand-600 transition-all flex items-center gap-2">
-              <Plus className="h-5 w-5" />
-              Add Modules
-            </Button>
-          </DialogTrigger>
-          <DialogContent className="max-w-[600px] p-0 border-none rounded-[16px] overflow-hidden">
-            <div className="bg-white">
-              <DialogHeader className="px-8 py-6 border-b border-grayScale-200 flex flex-row items-center justify-between">
-                <DialogTitle className="text-[20px] font-bold relative top-2 text-grayScale-900">
-                  Create Modules
-                </DialogTitle>
-                <DialogClose className="rounded-full p-1.5 hover:bg-grayScale-50 transition-colors">
-                  <X className="h-5 w-5 text-grayScale-400" />
-                  <span className="sr-only">Close</span>
-                </DialogClose>
-              </DialogHeader>
-
-              <div className="p-8 space-y-8">
-                <div className="space-y-3">
-                  <label className="text-[15px] text-grayScale-800">
-                    Module Title
-                  </label>
-                  <Input
-                    placeholder="e.g. 1.1 Exam types"
-                    className="h-12 border-grayScale-400 rounded-[8px] px-4 placeholder:text-grayScale-400 text-[15px] focus:ring-brand-500/20"
-                  />
-                </div>
-
-                <div className="space-y-3">
-                  <label className="text-[15px] text-grayScale-800">
-                    Module Order
-                  </label>
-                  <Select defaultValue="1">
-                    <option value="1">1</option>
-                    <option value="2">2</option>
-                  </Select>
-                </div>
-
-                <div className="space-y-3">
-                  <label className="text-[15px] text-grayScale-800">Icon</label>
-                  <div className="relative group cursor-pointer">
-                    <div className="flex flex-col items-center justify-center rounded-[12px] border-2 border-dashed border-grayScale-400 bg-white py-8 px-10 transition-all ">
-                      <div className="mb-4">
-                        <img
-                          src={uploadIcon}
-                          alt="Upload icon"
-                          className="h-10 w-10"
-                        />
-                      </div>
-                      <p className="text-[15px]">
-                        <span className="text-brand-500 font-bold hover:underline">
-                          Click to upload
-                        </span>{" "}
-                        <span className="text-grayScale-500">
-                          or drag and drop
-                        </span>
-                      </p>
-                      <p className="mt-1.5 text-[12px] text-grayScale-400 uppercase tracking-widest">
-                        JPG, PNG (MAX 1 MB)
-                      </p>
-                    </div>
-                  </div>
-                </div>
-              </div>
-
-              <div className="px-8 py-6 bg-grayScale-50/30 border-t border-grayScale-200 flex justify-end gap-3">
-                <DialogClose asChild>
-                  <Button
-                    variant="outline"
-                    className="h-11 px-8 rounded-[8px] border-grayScale-200 text-grayScale-700 font-bold"
-                  >
-                    Cancel
-                  </Button>
-                </DialogClose>
-                <Button className="h-11 px-8 rounded-[8px] bg-brand-500 text-white font-bold hover:bg-brand-600">
-                  Create Module
-                </Button>
-              </div>
-            </div>
-          </DialogContent>
-        </Dialog>
-      </div>
-
-      {/* Gradient Divider */}
-      <div className="relative">
-        <div className="absolute inset-0 flex items-center" aria-hidden="true">
-          <div className="w-full border-t border-grayScale-200" />
-        </div>
-        <div className="relative flex justify-center">
-          <div
-            className="h-[0.5px] w-full opacity-20 rounded-full"
-            style={{
-              background: "gray",
-            }}
-          />
-        </div>
-      </div>
-
-      {/* Grid of Modules */}
-      <div className="flex flex-wrap gap-4 pt-4">
-        {modules.map((module, index) => (
-          <Card
-            key={`${module.id}-${index}`}
-            className="group flex w-[400px] flex-col bg-white rounded-[12px] border border-grayScale-100 overflow-hidden shadow-sm hover:shadow-md transition-all"
-          >
-            {/* Gradient Header */}
-            <div
-              className="h-36 w-full"
-              style={{ background: module.gradient }}
-            />
-
-            <div className="p-5 flex flex-col space-y-4">
-              <div className="flex items-start gap-3">
-                {/* Chat Icon */}
-                <div className="mt-1 h-10 w-10 shrink-0 rounded-full bg-[#9E28911A] border border-[#9E289133] flex items-center justify-center">
-                  <MessageCircle className="h-5 w-5 text-brand-500" />
-                </div>
-
-                <div className="space-y-1">
-                  <h3 className="text-[16px] font-medium text-grayScale-900 leading-tight">
-                    {module.name}
-                  </h3>
-                  <p className="text-[12px] text-grayScale-500 font-medium">
-                    {module.description}
-                  </p>
-                </div>
-              </div>
-
-              {/* Stats Pills */}
-              <div className="flex items-center gap-3">
-                <div className="h-8 px-3 rounded-[6px] bg-grayScale-100 border border-grayScale-100 flex items-center gap-2 text-grayScale-600">
-                  <PlayCircle className="h-3.5 w-3.5 text-grayScale-400" />
-                  <span className="text-[12px] font-bold">
-                    {module.videos} Videos
-                  </span>
-                </div>
-                <div className="h-8 px-3 rounded-[6px] bg-grayScale-100 border border-grayScale-100 flex items-center gap-2 text-grayScale-600">
-                  <ClipboardCheck className="h-3.5 w-3.5 text-grayScale-400" />
-                  <span className="text-[12px] font-bold">
-                    {module.practices} Practices
-                  </span>
-                </div>
-              </div>
-
-              {/* Action Button */}
-              <Button
-                className="w-full h-10 bg-brand-500 text-white rounded-[6px] font-bold flex items-center justify-center gap-2 group/btn"
-                onClick={() =>
-                  navigate(
-                    `/new-content/courses/${programType}/${courseId}/${unitId}/${module.id}`,
-                  )
-                }
-              >
-                View Detail
-                <ArrowRight className="ml-1 h-4 w-4 transition-transform group-hover/btn:translate-x-1" />
-              </Button>
-            </div>
-          </Card>
-        ))}
-      </div>
-    </div>
-  );
-}

src/pages/content-management/components/AddModuleModal.tsx

@@ -1,190 +0,0 @@
-import { useEffect, useState, type FormEvent } from "react";
-import { Button } from "../../../components/ui/button";
-import {
-  Dialog,
-  DialogContent,
-  DialogHeader,
-  DialogTitle,
-  DialogDescription,
-  DialogClose,
-} from "../../../components/ui/dialog";
-import { Input } from "../../../components/ui/input";
-import { Textarea } from "../../../components/ui/textarea";
-import { toast } from "sonner";
-import { createTopLevelCourseModule } from "../../../api/courses.api";
-import { ModuleIconUploadField } from "./ModuleIconUploadField";
-
-interface AddModuleModalProps {
-  isOpen: boolean;
-  onClose: () => void;
-  courseId: number;
-  onCreated?: () => void | Promise<void>;
-}
-
-export function AddModuleModal({
-  isOpen,
-  onClose,
-  courseId,
-  onCreated,
-}: AddModuleModalProps) {
-  const [name, setName] = useState("");
-  const [description, setDescription] = useState("");
-  const [icon, setIcon] = useState("");
-  const [submitting, setSubmitting] = useState(false);
-  const [iconUploadBusy, setIconUploadBusy] = useState(false);
-
-  useEffect(() => {
-    if (isOpen) {
-      setName("");
-      setDescription("");
-      setIcon("");
-      setSubmitting(false);
-      setIconUploadBusy(false);
-    }
-  }, [isOpen]);
-
-  const resetAndClose = () => {
-    setName("");
-    setDescription("");
-    setIcon("");
-    setIconUploadBusy(false);
-    onClose();
-  };
-
-  const handleOpenChange = (open: boolean) => {
-    if (!open && (submitting || iconUploadBusy)) return;
-    if (!open) {
-      resetAndClose();
-    }
-  };
-
-  const handleSubmit = async (e: FormEvent) => {
-    e.preventDefault();
-    const trimmedName = name.trim();
-    if (!trimmedName) {
-      toast.error("Module name is required");
-      return;
-    }
-    if (!Number.isFinite(courseId) || courseId < 1) {
-      toast.error("Invalid course");
-      return;
-    }
-    setSubmitting(true);
-    try {
-      await createTopLevelCourseModule(courseId, {
-        name: trimmedName,
-        description: description.trim(),
-        icon: icon.trim(),
-      });
-      toast.success("Module created");
-      if (onCreated) {
-        await onCreated();
-      }
-      resetAndClose();
-    } catch (err: unknown) {
-      console.error(err);
-      const msg =
-        (err as { response?: { data?: { message?: string } } })?.response?.data
-          ?.message ?? "Failed to create module";
-      toast.error(msg);
-    } finally {
-      setSubmitting(false);
-    }
-  };
-
-  return (
-    <Dialog open={isOpen} onOpenChange={handleOpenChange}>
-      <DialogContent className="flex max-h-[min(90vh,calc(100dvh-2rem))] max-w-2xl flex-col gap-0 overflow-hidden rounded-[16px] border-none p-0 shadow-2xl">
-        <div className="flex-shrink-0">
-          <DialogHeader className="relative p-8 pb-4">
-            <DialogTitle className="text-2xl font-bold text-grayScale-700">
-              Add New Module
-            </DialogTitle>
-            <DialogDescription className="text-sm text-grayScale-400">
-              Create a module with{" "}
-              <code className="rounded bg-grayScale-100 px-1 py-0.5 text-[11px]">
-                POST /courses/:courseId/modules
-              </code>
-              .
-            </DialogDescription>
-          </DialogHeader>
-
-          <div className="relative">
-            <div
-              className="absolute inset-0 flex items-center"
-              aria-hidden="true"
-            >
-              <div className="w-full border-t border-grayScale-100" />
-            </div>
-            <div className="relative flex justify-center">
-              <div
-                className="h-[0.5px] w-full opacity-20"
-                style={{ background: "gray" }}
-              />
-            </div>
-          </div>
-        </div>
-
-        <form
-          className="min-h-0 flex-1 space-y-6 overflow-y-auto overscroll-contain p-8 pt-4"
-          onSubmit={(e) => void handleSubmit(e)}
-        >
-          <div className="space-y-2">
-            <label className="text-[15px] font-medium text-grayScale-700">
-              Module title
-            </label>
-            <Input
-              value={name}
-              onChange={(e) => setName(e.target.value)}
-              placeholder="e.g. Greetings & Introductions"
-              className="h-12 rounded-xl"
-              disabled={submitting}
-              required
-            />
-          </div>
-
-          <div className="space-y-2">
-            <label className="text-[15px] font-medium text-grayScale-700">
-              Description
-            </label>
-            <Textarea
-              value={description}
-              onChange={(e) => setDescription(e.target.value)}
-              placeholder="Learn to introduce yourself and talk about your life."
-              className="min-h-[88px] resize-y rounded-xl"
-              disabled={submitting}
-              rows={3}
-            />
-          </div>
-
-          <ModuleIconUploadField
-            value={icon}
-            onChange={setIcon}
-            disabled={submitting}
-            onUploadBusyChange={setIconUploadBusy}
-          />
-
-          <div className="flex justify-end gap-3 pt-4">
-            <DialogClose asChild>
-              <Button
-                type="button"
-                variant="outline"
-                className="h-12 min-w-[120px] rounded-xl border-grayScale-200 font-semibold"
-                disabled={submitting || iconUploadBusy}
-              >
-                Cancel
-              </Button>
-            </DialogClose>
-            <Button
-              type="submit"
-              className="h-12 min-w-[160px] rounded-xl bg-brand-500 font-semibold text-white shadow-lg shadow-brand-500/20 hover:bg-brand-600"
-              disabled={submitting || iconUploadBusy}
-            >
-              {submitting ? "Creating…" : "Create module"}
-            </Button>
-          </div>
-        </form>
-      </DialogContent>
-    </Dialog>
-  );
-}

src/pages/content-management/components/CreatePracticeWizard.tsx

@@ -1,481 +0,0 @@
-import { useCallback, useEffect, useState } from "react"
-import { Check, ChevronLeft, ChevronRight, ListOrdered, Plus, Trash2 } from "lucide-react"
-import { toast } from "sonner"
-import { Button } from "../../../components/ui/button"
-import { Card, CardContent, CardHeader, CardTitle } from "../../../components/ui/card"
-import { Input } from "../../../components/ui/input"
-import { Textarea } from "../../../components/ui/textarea"
-import {
-  addQuestionToSet,
-  createParentLinkedPractice,
-  createQuestion,
-  createQuestionSet,
-} from "../../../api/courses.api"
-import type { CreateQuestionRequest, PracticeParentKind } from "../../../types/course.types"
-import { cn } from "../../../lib/utils"
-import { SpinnerIcon } from "../../../components/ui/spinner-icon"
-
-export type CreatePracticeWizardParent = {
-  kind: PracticeParentKind
-  id: number
-} | null
-
-const STEPS = [
-  { n: 1, label: "Question set" },
-  { n: 2, label: "Questions" },
-  { n: 3, label: "Attach" },
-  { n: 4, label: "Practice" },
-] as const
-
-type QuestionDraft = {
-  question_text: string
-  voice_prompt: string
-  sample_answer_voice_prompt: string
-  audio_correct_answer_text: string
-}
-
-const emptyQuestion = (): QuestionDraft => ({
-  question_text: "",
-  voice_prompt: "",
-  sample_answer_voice_prompt: "",
-  audio_correct_answer_text: "",
-})
-
-type Props = {
-  parent: CreatePracticeWizardParent
-  onCreated?: () => void
-}
-
-export function CreatePracticeWizard({ parent, onCreated }: Props) {
-  const [step, setStep] = useState(1)
-  const [saving, setSaving] = useState(false)
-
-  const [setTitle, setSetTitle] = useState("")
-  const [questionSetId, setQuestionSetId] = useState<number | null>(null)
-
-  const [questionRows, setQuestionRows] = useState<QuestionDraft[]>([emptyQuestion()])
-  const [createdQuestionIds, setCreatedQuestionIds] = useState<number[]>([])
-
-  const [practiceTitle, setPracticeTitle] = useState("")
-  const [storyDescription, setStoryDescription] = useState("")
-  const [storyImage, setStoryImage] = useState("")
-  const [quickTips, setQuickTips] = useState("")
-
-  const canUseWizard = parent != null
-
-  useEffect(() => {
-    if (step === 4 && setTitle.trim() && !practiceTitle.trim()) {
-      setPracticeTitle(setTitle.trim())
-    }
-  }, [step, setTitle, practiceTitle])
-
-  const resetAll = useCallback(() => {
-    setStep(1)
-    setSetTitle("")
-    setQuestionSetId(null)
-    setQuestionRows([emptyQuestion()])
-    setCreatedQuestionIds([])
-    setPracticeTitle("")
-    setStoryDescription("")
-    setStoryImage("")
-    setQuickTips("")
-  }, [])
-
-  const handleStep1 = async () => {
-    if (!setTitle.trim()) {
-      toast.error("Enter a title for the question set")
-      return
-    }
-    setSaving(true)
-    try {
-      const res = await createQuestionSet({
-        title: setTitle.trim(),
-        set_type: "PRACTICE",
-      })
-      const id = res.data?.data?.id
-      if (id == null) {
-        throw new Error("No question set id in response")
-      }
-      setQuestionSetId(id)
-      toast.success("Question set created")
-      setStep(2)
-    } catch (e: unknown) {
-      const err = e as { response?: { data?: { message?: string } }; message?: string }
-      toast.error(err.response?.data?.message || err.message || "Failed to create question set")
-    } finally {
-      setSaving(false)
-    }
-  }
-
-  const handleStep2 = async () => {
-    for (let i = 0; i < questionRows.length; i++) {
-      const r = questionRows[i]
-      if (!r.question_text.trim()) {
-        toast.error(`Question ${i + 1}: enter question text`)
-        return
-      }
-      if (!r.voice_prompt.trim() || !r.sample_answer_voice_prompt.trim()) {
-        toast.error(`Question ${i + 1}: enter voice prompt URLs`)
-        return
-      }
-      if (!r.audio_correct_answer_text.trim()) {
-        toast.error(`Question ${i + 1}: enter the correct answer text`)
-        return
-      }
-    }
-    if (questionSetId == null) return
-    setSaving(true)
-    try {
-      const ids: number[] = []
-      for (const r of questionRows) {
-        const body: CreateQuestionRequest = {
-          question_text: r.question_text.trim(),
-          question_type: "AUDIO",
-          voice_prompt: r.voice_prompt.trim(),
-          sample_answer_voice_prompt: r.sample_answer_voice_prompt.trim(),
-          audio_correct_answer_text: r.audio_correct_answer_text.trim(),
-        }
-        const res = await createQuestion(body)
-        const qid = res.data?.data?.id
-        if (qid == null) {
-          throw new Error("A question was created but no id was returned")
-        }
-        ids.push(qid)
-      }
-      setCreatedQuestionIds(ids)
-      toast.success(`Created ${ids.length} question(s)`)
-      setStep(3)
-    } catch (e: unknown) {
-      const err = e as { response?: { data?: { message?: string } }; message?: string }
-      toast.error(err.response?.data?.message || err.message || "Failed to create questions")
-    } finally {
-      setSaving(false)
-    }
-  }
-
-  const handleStep3 = async () => {
-    if (questionSetId == null || createdQuestionIds.length === 0) return
-    setSaving(true)
-    try {
-      for (let i = 0; i < createdQuestionIds.length; i++) {
-        await addQuestionToSet(questionSetId, {
-          question_id: createdQuestionIds[i],
-          display_order: i + 1,
-        })
-      }
-      toast.success("Questions linked to the set")
-      setStep(4)
-    } catch (e: unknown) {
-      const err = e as { response?: { data?: { message?: string } }; message?: string }
-      toast.error(err.response?.data?.message || err.message || "Failed to attach questions")
-    } finally {
-      setSaving(false)
-    }
-  }
-
-  const handleStep4 = async () => {
-    if (!parent || questionSetId == null) return
-    if (!practiceTitle.trim() || !storyDescription.trim() || !storyImage.trim()) {
-      toast.error("Title, story description, and story image are required")
-      return
-    }
-    setSaving(true)
-    try {
-      await createParentLinkedPractice({
-        parent_kind: parent.kind,
-        parent_id: parent.id,
-        title: practiceTitle.trim(),
-        story_description: storyDescription.trim(),
-        story_image: storyImage.trim(),
-        question_set_id: questionSetId,
-        quick_tips: quickTips.trim(),
-      })
-      toast.success("Practice created successfully")
-      resetAll()
-      onCreated?.()
-    } catch (e: unknown) {
-      const err = e as { response?: { data?: { message?: string } }; message?: string }
-      toast.error(err.response?.data?.message || err.message || "Failed to create practice")
-    } finally {
-      setSaving(false)
-    }
-  }
-
-  return (
-    <Card className="border-brand-200/60 shadow-soft">
-      <CardHeader className="border-b border-grayScale-200 pb-4">
-        <CardTitle className="text-base font-semibold text-grayScale-800">Create a new practice</CardTitle>
-        <p className="text-sm font-normal text-grayScale-500">
-          Four steps: create a question set, add audio questions, attach them, then set the practice
-          story. Select the course, module, or lesson above first.
-        </p>
-        <ol className="mt-4 flex flex-wrap gap-2">
-          {STEPS.map((s) => {
-            const done = step > s.n
-            const active = step === s.n
-            return (
-              <li
-                key={s.n}
-                className={cn(
-                  "flex items-center gap-1.5 rounded-full border px-3 py-1 text-xs font-bold uppercase tracking-wider",
-                  done && "border-mint-500/40 bg-mint-50 text-mint-800",
-                  active && !done && "border-brand-500 bg-brand-500 text-white",
-                  !active && !done && "border-grayScale-200 bg-white text-grayScale-500",
-                )}
-              >
-                {done ? <Check className="h-3.5 w-3.5" /> : <span className="font-mono tabular-nums">{s.n}</span>}
-                {s.label}
-              </li>
-            )
-          })}
-        </ol>
-      </CardHeader>
-      <CardContent className="pt-5">
-        {!canUseWizard && (
-          <p className="rounded-xl border border-amber-200 bg-amber-50/80 px-4 py-3 text-sm text-amber-900">
-            Choose a program, course, and the target (course / module / lesson) in the &quot;Look up
-            practice&quot; section, then return here. The practice is created for the same selection
-            (course id, module id, or lesson id).
-          </p>
-        )}
-
-        {canUseWizard && step === 1 && (
-          <div className="space-y-4">
-            <div>
-              <p className="mb-1.5 text-xs font-semibold uppercase tracking-wider text-grayScale-500">
-                Question set title
-              </p>
-              <Input
-                value={setTitle}
-                onChange={(e) => setSetTitle(e.target.value)}
-                placeholder='e.g. "Course-A1 practice"'
-                disabled={saving}
-              />
-            </div>
-            <p className="text-xs text-grayScale-500">
-              This calls <span className="font-mono">POST /question-sets</span> with{" "}
-              <span className="font-mono">set_type: PRACTICE</span>.
-            </p>
-            <Button type="button" onClick={handleStep1} disabled={saving}>
-              {saving ? <SpinnerIcon className="h-4 w-4" /> : null}
-              Create question set &amp; continue
-            </Button>
-          </div>
-        )}
-
-        {canUseWizard && step === 2 && (
-          <div className="space-y-4">
-            <p className="text-sm text-grayScale-600">
-              Set id <span className="font-mono font-medium text-grayScale-800">#{questionSetId}</span> — add
-              one or more <strong>AUDIO</strong> questions. Each is created via{" "}
-              <span className="font-mono">POST /questions</span>.
-            </p>
-            {questionRows.map((row, idx) => (
-              <div
-                key={idx}
-                className="space-y-3 rounded-2xl border border-grayScale-200 bg-grayScale-50/50 p-4"
-              >
-                <div className="flex items-center justify-between">
-                  <span className="text-xs font-bold uppercase tracking-wider text-grayScale-500">
-                    Question {idx + 1}
-                  </span>
-                  {questionRows.length > 1 && (
-                    <Button
-                      type="button"
-                      variant="ghost"
-                      size="sm"
-                      className="h-8 text-red-600 hover:text-red-700"
-                      onClick={() => setQuestionRows((rows) => rows.filter((_, i) => i !== idx))}
-                    >
-                      <Trash2 className="h-4 w-4" />
-                    </Button>
-                  )}
-                </div>
-                <div>
-                  <p className="mb-1 text-xs font-medium text-grayScale-500">Question text</p>
-                  <Textarea
-                    value={row.question_text}
-                    onChange={(e) => {
-                      const v = e.target.value
-                      setQuestionRows((rows) =>
-                        rows.map((r, i) => (i === idx ? { ...r, question_text: v } : r)),
-                      )
-                    }}
-                    rows={2}
-                    placeholder="Thank you for your help!"
-                    disabled={saving}
-                  />
-                </div>
-                <div>
-                  <p className="mb-1 text-xs font-medium text-grayScale-500">Voice prompt (URL)</p>
-                  <Input
-                    value={row.voice_prompt}
-                    onChange={(e) => {
-                      const v = e.target.value
-                      setQuestionRows((rows) =>
-                        rows.map((r, i) => (i === idx ? { ...r, voice_prompt: v } : r)),
-                      )
-                    }}
-                    placeholder="https://…"
-                    disabled={saving}
-                  />
-                </div>
-                <div>
-                  <p className="mb-1 text-xs font-medium text-grayScale-500">Sample answer voice (URL)</p>
-                  <Input
-                    value={row.sample_answer_voice_prompt}
-                    onChange={(e) => {
-                      const v = e.target.value
-                      setQuestionRows((rows) =>
-                        rows.map((r, i) => (i === idx ? { ...r, sample_answer_voice_prompt: v } : r)),
-                      )
-                    }}
-                    placeholder="https://…"
-                    disabled={saving}
-                  />
-                </div>
-                <div>
-                  <p className="mb-1 text-xs font-medium text-grayScale-500">Correct answer text</p>
-                  <Textarea
-                    value={row.audio_correct_answer_text}
-                    onChange={(e) => {
-                      const v = e.target.value
-                      setQuestionRows((rows) =>
-                        rows.map((r, i) => (i === idx ? { ...r, audio_correct_answer_text: v } : r)),
-                      )
-                    }}
-                    rows={2}
-                    placeholder="You're welcome! Have a nice day!"
-                    disabled={saving}
-                  />
-                </div>
-              </div>
-            ))}
-            <Button
-              type="button"
-              variant="outline"
-              size="sm"
-              onClick={() => setQuestionRows((rows) => [...rows, emptyQuestion()])}
-              disabled={saving}
-            >
-              <Plus className="mr-1.5 h-4 w-4" />
-              Add another question
-            </Button>
-            <div className="flex flex-wrap gap-2 pt-2">
-              <Button type="button" variant="outline" onClick={() => setStep(1)} disabled={saving}>
-                <ChevronLeft className="mr-1 h-4 w-4" />
-                Back
-              </Button>
-              <Button type="button" onClick={handleStep2} disabled={saving}>
-                {saving ? <SpinnerIcon className="h-4 w-4" /> : null}
-                Create questions &amp; continue
-              </Button>
-            </div>
-          </div>
-        )}
-
-        {canUseWizard && step === 3 && (
-          <div className="space-y-4">
-            <p className="text-sm text-grayScale-600">
-              Link each question to the set with a display order using{" "}
-              <span className="font-mono">POST /question-sets/&#123;id&#125;/questions</span>.
-            </p>
-            <ul className="space-y-2 rounded-xl border border-grayScale-200 bg-white p-3">
-              {createdQuestionIds.map((qid, i) => (
-                <li
-                  key={qid}
-                  className="flex items-center justify-between gap-2 text-sm text-grayScale-700"
-                >
-                  <span className="font-mono">question #{qid}</span>
-                  <span className="flex items-center gap-1 text-xs text-grayScale-500">
-                    <ListOrdered className="h-3.5 w-3.5" />
-                    order {i + 1}
-                  </span>
-                </li>
-              ))}
-            </ul>
-            <div className="flex flex-wrap gap-2">
-              <Button type="button" variant="outline" onClick={() => setStep(2)} disabled={saving}>
-                <ChevronLeft className="mr-1 h-4 w-4" />
-                Back
-              </Button>
-              <Button type="button" onClick={handleStep3} disabled={saving}>
-                {saving ? <SpinnerIcon className="h-4 w-4" /> : null}
-                Attach to question set
-              </Button>
-            </div>
-          </div>
-        )}
-
-        {canUseWizard && step === 4 && parent && (
-          <div className="space-y-4">
-            <p className="text-sm text-grayScale-600">
-              Parent:{" "}
-              <span className="font-mono text-xs">
-                {parent.kind} #{parent.id}
-              </span>{" "}
-              · question set <span className="font-mono">#{questionSetId}</span> ·{" "}
-              <span className="font-mono">POST /practices</span>
-            </p>
-            <div>
-              <p className="mb-1.5 text-xs font-semibold uppercase tracking-wider text-grayScale-500">
-                Practice title
-              </p>
-              <Input
-                value={practiceTitle}
-                onChange={(e) => setPracticeTitle(e.target.value)}
-                placeholder="Test title"
-                disabled={saving}
-              />
-            </div>
-            <div>
-              <p className="mb-1.5 text-xs font-semibold uppercase tracking-wider text-grayScale-500">
-                Story description
-              </p>
-              <Textarea
-                value={storyDescription}
-                onChange={(e) => setStoryDescription(e.target.value)}
-                rows={4}
-                placeholder="Story for the learner…"
-                disabled={saving}
-              />
-            </div>
-            <div>
-              <p className="mb-1.5 text-xs font-semibold uppercase tracking-wider text-grayScale-500">
-                Story image (URL)
-              </p>
-              <Input
-                value={storyImage}
-                onChange={(e) => setStoryImage(e.target.value)}
-                placeholder="https://…"
-                disabled={saving}
-              />
-            </div>
-            <div>
-              <p className="mb-1.5 text-xs font-semibold uppercase tracking-wider text-grayScale-500">
-                Quick tips
-              </p>
-              <Textarea
-                value={quickTips}
-                onChange={(e) => setQuickTips(e.target.value)}
-                rows={2}
-                placeholder="Comma-separated tips (optional)"
-                disabled={saving}
-              />
-            </div>
-            <div className="flex flex-wrap gap-2">
-              <Button type="button" variant="outline" onClick={() => setStep(3)} disabled={saving}>
-                <ChevronLeft className="mr-1 h-4 w-4" />
-                Back
-              </Button>
-              <Button type="button" onClick={handleStep4} disabled={saving}>
-                {saving ? <SpinnerIcon className="h-4 w-4" /> : <ChevronRight className="mr-1.5 h-4 w-4" />}
-                Create practice
-              </Button>
-            </div>
-          </div>
-        )}
-      </CardContent>
-    </Card>
-  )
-}

src/pages/content-management/components/LessonMediaUploadField.tsx

@@ -1,215 +0,0 @@
-import { useCallback, useRef, useState, type ChangeEvent, type DragEvent } from "react";
-import { CloudUpload } from "lucide-react";
-import { toast } from "sonner";
-import { Input } from "../../../components/ui/input";
-import { cn } from "../../../lib/utils";
-import { uploadImageFile, uploadVideoFile } from "../../../api/files.api";
-
-const MAX_THUMB_BYTES = 5 * 1024 * 1024;
-const MAX_VIDEO_BYTES = 2 * 1024 * 1024 * 1024;
-
-const THUMB_TYPES = new Set(["image/jpeg", "image/png"]);
-const VIDEO_TYPES_PREFIX = "video/";
-
-function isAllowedThumb(file: File): boolean {
-  if (THUMB_TYPES.has(file.type)) return true;
-  const n = file.name.toLowerCase();
-  return /\.(jpe?g|png)$/.test(n);
-}
-
-function isAllowedVideoFile(file: File): boolean {
-  if (file.type.startsWith(VIDEO_TYPES_PREFIX)) return true;
-  const n = file.name.toLowerCase();
-  return /\.(mp4|webm|mov|m4v|mkv)$/.test(n);
-}
-
-export type LessonMediaUploadKind = "thumbnail" | "video";
-
-export interface LessonMediaUploadFieldProps {
-  kind: LessonMediaUploadKind;
-  value: string;
-  onChange: (url: string) => void;
-  disabled?: boolean;
-  onUploadBusyChange?: (busy: boolean) => void;
-  className?: string;
-}
-
-export function LessonMediaUploadField({
-  kind,
-  value,
-  onChange,
-  disabled = false,
-  onUploadBusyChange,
-  className,
-}: LessonMediaUploadFieldProps) {
-  const fileInputRef = useRef<HTMLInputElement>(null);
-  const [uploading, setUploading] = useState(false);
-  const [dragActive, setDragActive] = useState(false);
-
-  const setBusy = useCallback(
-    (next: boolean) => {
-      setUploading(next);
-      onUploadBusyChange?.(next);
-    },
-    [onUploadBusyChange],
-  );
-
-  const processFile = useCallback(
-    async (file: File) => {
-      if (disabled || uploading) return;
-
-      if (kind === "thumbnail") {
-        if (!isAllowedThumb(file)) {
-          toast.error("Please use a JPG or PNG image.");
-          return;
-        }
-        if (file.size > MAX_THUMB_BYTES) {
-          toast.error("Image is too large", {
-            description: "Maximum size is 5 MB.",
-          });
-          return;
-        }
-        setBusy(true);
-        try {
-          const res = await uploadImageFile(file);
-          const url = res.data?.data?.url?.trim();
-          if (!url) throw new Error("Upload did not return a file URL");
-          onChange(url);
-          toast.success("Thumbnail uploaded");
-        } catch (e: unknown) {
-          console.error(e);
-          const msg =
-            (e as { response?: { data?: { message?: string } } })?.response?.data
-              ?.message ?? "Failed to upload thumbnail";
-          toast.error(msg);
-        } finally {
-          setBusy(false);
-        }
-        return;
-      }
-
-      if (!isAllowedVideoFile(file)) {
-        toast.error("Please use a video file (e.g. MP4, WebM, MOV).");
-        return;
-      }
-      if (file.size > MAX_VIDEO_BYTES) {
-        toast.error("Video is too large", {
-          description: "Maximum size is 2 GB.",
-        });
-        return;
-      }
-      setBusy(true);
-      try {
-        const res = await uploadVideoFile(file);
-        const url = res.data?.data?.url?.trim();
-        if (!url) throw new Error("Upload did not return a file URL");
-        onChange(url);
-        toast.success("Video uploaded");
-      } catch (e: unknown) {
-        console.error(e);
-        const msg =
-          (e as { response?: { data?: { message?: string } } })?.response?.data
-            ?.message ?? "Failed to upload video";
-        toast.error(msg);
-      } finally {
-        setBusy(false);
-      }
-    },
-    [disabled, uploading, kind, onChange, setBusy],
-  );
-
-  const handleFileInputChange = (e: ChangeEvent<HTMLInputElement>) => {
-    const file = e.target.files?.[0];
-    e.target.value = "";
-    if (file) void processFile(file);
-  };
-
-  const handleDragOver = (e: DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    if (!disabled && !uploading) setDragActive(true);
-  };
-
-  const handleDragLeave = (e: DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    setDragActive(false);
-  };
-
-  const handleDrop = (e: DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    setDragActive(false);
-    if (disabled || uploading) return;
-    const file = e.dataTransfer.files?.[0];
-    if (file) void processFile(file);
-  };
-
-  const zoneDisabled = disabled || uploading;
-  const isThumb = kind === "thumbnail";
-  const label = isThumb ? "Thumbnail" : "Video";
-  const hint = isThumb
-    ? "JPG, PNG (MAX 5 MB)"
-    : "MP4, MOV, WebM (MAX 2 GB)";
-
-  return (
-    <div className={cn("space-y-3", className)}>
-      <label className="text-sm font-medium text-grayScale-700">
-        {label}
-      </label>
-      <input
-        ref={fileInputRef}
-        type="file"
-        accept={
-          isThumb
-            ? "image/jpeg,image/png,.jpg,.jpeg,.png"
-            : "video/*,.mp4,.webm,.mov,.m4v,.mkv"
-        }
-        className="sr-only"
-        onChange={handleFileInputChange}
-        disabled={zoneDisabled}
-      />
-      <button
-        type="button"
-        disabled={zoneDisabled}
-        onClick={() => fileInputRef.current?.click()}
-        onDragOver={handleDragOver}
-        onDragLeave={handleDragLeave}
-        onDrop={handleDrop}
-        className={cn(
-          "flex w-full cursor-pointer flex-col items-center justify-center rounded-2xl border-2 border-dashed border-[#9E289133] bg-white p-10 text-center transition-colors",
-          "hover:border-[#9E289180] hover:bg-grayScale-50/30",
-          dragActive && "border-[#9E2891] bg-[#9E289108]",
-          zoneDisabled && "cursor-not-allowed opacity-60",
-        )}
-      >
-        {uploading ? (
-          <p className="text-sm font-medium text-grayScale-600">Uploading…</p>
-        ) : (
-          <>
-            <CloudUpload
-              className="mb-4 h-10 w-10 text-[#9E2891]"
-              strokeWidth={1.5}
-              aria-hidden
-            />
-            <p className="text-sm">
-              <span className="font-bold text-[#9E2891]">Click to upload</span>{" "}
-              <span className="text-grayScale-500">or paste a URL below</span>
-            </p>
-            <p className="mt-1 text-xs font-medium uppercase tracking-wider text-grayScale-400">
-              {hint}
-            </p>
-          </>
-        )}
-      </button>
-      <Input
-        value={value}
-        onChange={(e) => onChange(e.target.value)}
-        placeholder="https://…"
-        className="h-12 rounded-xl"
-        disabled={disabled || uploading}
-        autoComplete="off"
-      />
-    </div>
-  );
-}

src/pages/content-management/components/ModuleIconUploadField.tsx

@@ -1,166 +0,0 @@
-import { useCallback, useRef, useState, type ChangeEvent, type DragEvent } from "react";
-import { CloudUpload } from "lucide-react";
-import { toast } from "sonner";
-import { Input } from "../../../components/ui/input";
-import { cn } from "../../../lib/utils";
-import { uploadImageFile } from "../../../api/files.api";
-
-const MAX_ICON_BYTES = 5 * 1024 * 1024;
-const ALLOWED_IMAGE_TYPES = new Set(["image/jpeg", "image/png"]);
-
-function isAllowedImageFile(file: File): boolean {
-  if (ALLOWED_IMAGE_TYPES.has(file.type)) return true;
-  const name = file.name.toLowerCase();
-  return /\.(jpe?g|png)$/.test(name);
-}
-
-export interface ModuleIconUploadFieldProps {
-  value: string;
-  onChange: (url: string) => void;
-  disabled?: boolean;
-  /** Notifies parent so dialogs can block closing while an upload is in flight. */
-  onUploadBusyChange?: (busy: boolean) => void;
-  className?: string;
-}
-
-export function ModuleIconUploadField({
-  value,
-  onChange,
-  disabled = false,
-  onUploadBusyChange,
-  className,
-}: ModuleIconUploadFieldProps) {
-  const fileInputRef = useRef<HTMLInputElement>(null);
-  const [uploading, setUploading] = useState(false);
-  const [dragActive, setDragActive] = useState(false);
-
-  const setBusy = useCallback(
-    (next: boolean) => {
-      setUploading(next);
-      onUploadBusyChange?.(next);
-    },
-    [onUploadBusyChange],
-  );
-
-  const processFile = useCallback(
-    async (file: File) => {
-      if (disabled || uploading) return;
-      if (!isAllowedImageFile(file)) {
-        toast.error("Please use a JPG or PNG image.");
-        return;
-      }
-      if (file.size > MAX_ICON_BYTES) {
-        toast.error("Image is too large", {
-          description: "Maximum size is 5 MB.",
-        });
-        return;
-      }
-      setBusy(true);
-      try {
-        const res = await uploadImageFile(file);
-        const url = res.data?.data?.url?.trim();
-        if (!url) {
-          throw new Error("Upload did not return a file URL");
-        }
-        onChange(url);
-        toast.success("Icon uploaded");
-      } catch (e: unknown) {
-        console.error(e);
-        const msg =
-          (e as { response?: { data?: { message?: string } } })?.response?.data
-            ?.message ?? "Failed to upload icon";
-        toast.error(msg);
-      } finally {
-        setBusy(false);
-      }
-    },
-    [disabled, uploading, onChange, setBusy],
-  );
-
-  const handleFileInputChange = (e: ChangeEvent<HTMLInputElement>) => {
-    const file = e.target.files?.[0];
-    e.target.value = "";
-    if (file) void processFile(file);
-  };
-
-  const handleDragOver = (e: DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    if (!disabled && !uploading) setDragActive(true);
-  };
-
-  const handleDragLeave = (e: DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    setDragActive(false);
-  };
-
-  const handleDrop = (e: DragEvent) => {
-    e.preventDefault();
-    e.stopPropagation();
-    setDragActive(false);
-    if (disabled || uploading) return;
-    const file = e.dataTransfer.files?.[0];
-    if (file) void processFile(file);
-  };
-
-  const zoneDisabled = disabled || uploading;
-  const showSpinner = uploading;
-
-  return (
-    <div className={cn("space-y-3", className)}>
-      <label className="text-[15px] font-medium text-grayScale-700 md:text-sm">
-        Icon
-      </label>
-      <input
-        ref={fileInputRef}
-        type="file"
-        accept="image/jpeg,image/png,.jpg,.jpeg,.png"
-        className="sr-only"
-        onChange={handleFileInputChange}
-        disabled={zoneDisabled}
-      />
-      <button
-        type="button"
-        disabled={zoneDisabled}
-        onClick={() => fileInputRef.current?.click()}
-        onDragOver={handleDragOver}
-        onDragLeave={handleDragLeave}
-        onDrop={handleDrop}
-        className={cn(
-          "flex w-full cursor-pointer flex-col items-center justify-center rounded-2xl border-2 border-dashed border-[#9E289133] bg-white p-10 text-center transition-colors",
-          "hover:border-[#9E289180] hover:bg-grayScale-50/30",
-          dragActive && "border-[#9E2891] bg-[#9E289108]",
-          zoneDisabled && "cursor-not-allowed opacity-60",
-        )}
-      >
-        {showSpinner ? (
-          <p className="text-sm font-medium text-grayScale-600">Uploading…</p>
-        ) : (
-          <>
-            <CloudUpload
-              className="mb-4 h-10 w-10 text-[#9E2891]"
-              strokeWidth={1.5}
-              aria-hidden
-            />
-            <p className="text-sm">
-              <span className="font-bold text-[#9E2891]">Click to upload</span>{" "}
-              <span className="text-grayScale-500">or paste a URL below</span>
-            </p>
-            <p className="mt-1 text-xs font-medium uppercase tracking-wider text-grayScale-400">
-              JPG, PNG (MAX 5 MB)
-            </p>
-          </>
-        )}
-      </button>
-      <Input
-        value={value}
-        onChange={(e) => onChange(e.target.value)}
-        placeholder="https://…"
-        className="h-12 rounded-xl"
-        disabled={disabled || uploading}
-        autoComplete="off"
-      />
-    </div>
-  );
-}

src/pages/content-management/components/PreviewLimitedFileVideo.tsx

@@ -1,66 +0,0 @@
-import { useState } from "react";
-import { cn } from "../../../lib/utils";
-import {
-  DEFAULT_PREVIEW_MAX_SECONDS,
-  formatPreviewLength,
-} from "../../../lib/videoPreview";
-
-type Props = {
-  src: string;
-  maxSeconds?: number;
-};
-
-/**
- * Stops direct file playback after the first N seconds (admin short preview).
- */
-export function PreviewLimitedFileVideo({
-  src,
-  maxSeconds = DEFAULT_PREVIEW_MAX_SECONDS,
-}: Props) {
-  const [capped, setCapped] = useState(false);
-  const previewLengthLabel = formatPreviewLength(maxSeconds);
-
-  const onTimeUpdate = (e: React.SyntheticEvent<HTMLVideoElement>) => {
-    const el = e.currentTarget;
-    if (el.currentTime >= maxSeconds) {
-      el.pause();
-      if (el.currentTime > maxSeconds) {
-        el.currentTime = maxSeconds;
-      }
-      setCapped(true);
-    } else {
-      setCapped(false);
-    }
-  };
-
-  const onSeeking = (e: React.SyntheticEvent<HTMLVideoElement>) => {
-    const el = e.currentTarget;
-    if (el.currentTime > maxSeconds) {
-      el.currentTime = maxSeconds;
-    }
-  };
-
-  return (
-    <div className="relative">
-      <video
-        controls
-        playsInline
-        className="aspect-video w-full object-contain"
-        src={src}
-        onTimeUpdate={onTimeUpdate}
-        onSeeking={onSeeking}
-        onPlay={() => setCapped(false)}
-      />
-      <div
-        className={cn(
-          "pointer-events-none absolute bottom-0 left-0 right-0 z-10 bg-gradient-to-t from-black/90 via-black/50 to-transparent px-3 py-2.5 text-center text-[11px] font-semibold",
-          capped ? "text-amber-200" : "text-white/95",
-        )}
-      >
-        {capped
-          ? `Preview stopped at ${previewLengthLabel} · rewind to rewatch the clip`
-          : `Short clip · playback stops at ${previewLengthLabel}`}
-      </div>
-    </div>
-  );
-}

src/pages/content-management/components/QuestionTypeCard.tsx

@@ -1,83 +0,0 @@
-import { Edit2, Trash2, Mic2, Keyboard, Layers, MicIcon } from "lucide-react";
-import { Badge } from "../../../components/ui/badge";
-import { Card } from "../../../components/ui/card";
-import { cn } from "../../../lib/utils";
-
-interface QuestionTypeCardProps {
-  title: string;
-  exam: "DUOLINGO" | "IELTS" | "TOEFL";
-  skill: "Speaking" | "Writing" | "Listening" | "Reading";
-  variations: number;
-  status: "Published" | "Draft" | "Archived";
-}
-
-export function QuestionTypeCard({
-  title,
-  exam,
-  skill,
-  variations,
-  status,
-}: QuestionTypeCardProps) {
-  const SkillIcon = skill === "Speaking" ? MicIcon : Keyboard;
-
-  const examColors = {
-    DUOLINGO: "bg-[#22C55EE5] text-[#fff] border-transparent",
-    IELTS: "bg-[#EF4444E5] text-[#fff] border-transparent",
-    TOEFL: "bg-[#DBEAFE] text-[#fff] border-transparent",
-  };
-
-  const statusColors = {
-    Published: "bg-[#F0FDF4] text-[#16A34A]",
-    Draft: "bg-grayScale-50 text-grayScale-500",
-    Archived: "bg-red-50 text-red-500",
-  };
-
-  return (
-    <Card className="group overflow-hidden border-grayScale-200 rounded-[12px] bg-white  transition-all duration-300">
-      <div className="px-4 py-6 space-y-8">
-        <h3 className="text-[20px] font-bold text-grayScale-900 leading-[1.2]">
-          {title}
-        </h3>
-
-        <div className="flex items-center justify-between">
-          <Badge
-            className={cn(
-              "px-3 py-1 rounded-[4px] text-[11px] font-bold tracking-wider shadow-none border-none",
-              examColors[exam],
-            )}
-          >
-            {exam}
-          </Badge>
-          <div className="flex items-center gap-1 text-grayScale-900 font-bold text-[13px]">
-            <SkillIcon className="h-4 w-4" />
-            {skill}
-          </div>
-        </div>
-
-        <div className="flex items-center gap-2.5 text-[#9E2891] font-medium text-[15px]">
-          <Layers className="h-[16px] w-[16px]" />
-          {variations} Variations
-        </div>
-
-        <div className="pt-4 flex items-center justify-between border-t border-grayScale-200">
-          <Badge
-            className={cn(
-              "px-3 py-1 rounded-[4px] text-[12px] font-bold shadow-none border-none",
-              statusColors[status],
-            )}
-          >
-            {status}
-          </Badge>
-          <div className="flex items-center gap-5 transition-opacity">
-            <button className="text-grayScale-500/70 transition-all">
-              <Edit2 className="h-5 w-5" />
-            </button>
-            <button className="text-grayScale-500/70 transition-all">
-              <Trash2 className="h-5 w-5" />
-            </button>
-          </div>
-        </div>
-      </div>
-    </Card>
-  );
-}

src/pages/content-management/components/VideoCard.tsx

@@ -1,375 +0,0 @@
-import { useEffect, useMemo, useState } from "react";
-import { MoreVertical, Edit2, Play, Pencil, Trash2 } from "lucide-react";
-import { Button } from "../../../components/ui/button";
-import {
-  Dialog,
-  DialogContent,
-  DialogHeader,
-  DialogTitle,
-} from "../../../components/ui/dialog";
-import { isAdminOrSuperAdminRole } from "../../../lib/sessionRole";
-import { cn } from "../../../lib/utils";
-import {
-  applyShortPreviewToEmbedUrl,
-  DEFAULT_PREVIEW_MAX_SECONDS,
-  formatPreviewLength,
-  getVideoPreview,
-} from "../../../lib/videoPreview";
-import { PreviewLimitedFileVideo } from "./PreviewLimitedFileVideo";
-
-interface VideoCardProps {
-  id?: string | number;
-  title: string;
-  /** Omits the duration chip when not provided (e.g. API has no length yet). */
-  duration?: string;
-  /** When omitted, shows a neutral "Lesson" chip and no Publish button. */
-  status?: "Draft" | "Published";
-  thumbnailGradient?: string;
-  thumbnailUrl?: string | null;
-  /**
-   * When set, the hover play control opens a preview (Vimeo, YouTube, or direct
-   * video file) in a dialog.
-   */
-  videoUrl?: string;
-  /**
-   * When true, shows edit/delete in the top-right of the thumbnail (same
-   * hover pattern as module cards) and removes the footer + overflow menu.
-   */
-  hoverModuleActions?: boolean;
-  onEdit?: () => void;
-  onDelete?: () => void;
-  onPublish?: () => void;
-}
-
-export function VideoCard({
-  title,
-  duration,
-  status,
-  thumbnailGradient = "from-[#CBD5E1] to-[#94A3B8]",
-  thumbnailUrl,
-  videoUrl,
-  onEdit,
-  onDelete,
-  onPublish,
-  hoverModuleActions = false,
-}: VideoCardProps) {
-  const [thumbFailed, setThumbFailed] = useState(false);
-  const [previewOpen, setPreviewOpen] = useState(false);
-  /** Iframe players ignore URL limits in many cases — unmount after real time. */
-  const [iframeSessionDone, setIframeSessionDone] = useState(false);
-  const [iframeSessionKey, setIframeSessionKey] = useState(0);
-  const useGradient = !thumbnailUrl?.trim() || thumbFailed;
-  const videoPreview = useMemo(
-    () => (videoUrl?.trim() ? getVideoPreview(videoUrl) : { kind: "none" as const }),
-    [videoUrl],
-  );
-  const limitedEmbedSrc = useMemo(() => {
-    if (videoPreview.kind !== "iframe") return null;
-    return applyShortPreviewToEmbedUrl(
-      videoPreview.src,
-      videoPreview.label,
-      DEFAULT_PREVIEW_MAX_SECONDS,
-    );
-  }, [videoPreview]);
-  const canPreview = Boolean(videoUrl?.trim());
-  const previewLengthLabel = formatPreviewLength(
-    DEFAULT_PREVIEW_MAX_SECONDS,
-  );
-
-  useEffect(() => {
-    if (!previewOpen) {
-      setIframeSessionDone(false);
-      return;
-    }
-    if (videoPreview.kind !== "iframe" || !limitedEmbedSrc) {
-      return;
-    }
-    if (iframeSessionDone) {
-      return;
-    }
-    const ms = DEFAULT_PREVIEW_MAX_SECONDS * 1000;
-    const id = window.setTimeout(() => {
-      setIframeSessionDone(true);
-    }, ms);
-    return () => window.clearTimeout(id);
-  }, [
-    previewOpen,
-    videoPreview.kind,
-    limitedEmbedSrc,
-    iframeSessionDone,
-  ]);
-
-  const handlePreviewOpenChange = (open: boolean) => {
-    setPreviewOpen(open);
-    if (!open) {
-      setIframeSessionDone(false);
-      setIframeSessionKey((k) => k + 1);
-    }
-  };
-
-  return (
-    <div
-      className={cn(
-        "group relative bg-white rounded-[24px] border border-grayScale-50 overflow-hidden shadow-sm hover:shadow-lg transition-all duration-300 flex flex-col",
-      )}
-    >
-      {/* Thumbnail */}
-      <div
-        className={cn(
-          "relative h-44 w-full overflow-hidden",
-          useGradient && "bg-gradient-to-br",
-          useGradient && thumbnailGradient,
-          !useGradient && "bg-grayScale-100",
-        )}
-      >
-        {hoverModuleActions && (onEdit || onDelete) ? (
-          <div
-            className="absolute right-2 top-2 z-20 flex translate-y-1 gap-1 opacity-0 pointer-events-none transition-all duration-300 ease-out group-hover:translate-y-0 group-hover:opacity-100 group-hover:pointer-events-auto"
-          >
-            {onEdit ? (
-              <Button
-                type="button"
-                variant="secondary"
-                size="icon"
-                className="h-8 w-8 rounded-md bg-white/95 text-grayScale-600 shadow-sm transition-colors hover:bg-white"
-                aria-label={`Edit ${title}`}
-                onClick={(e) => {
-                  e.stopPropagation();
-                  onEdit();
-                }}
-              >
-                <Pencil className="h-3.5 w-3.5" />
-              </Button>
-            ) : null}
-            {onDelete ? (
-              <Button
-                type="button"
-                variant="secondary"
-                size="icon"
-                className="h-8 w-8 rounded-md bg-white/95 text-red-600 shadow-sm transition-colors hover:bg-red-50"
-                aria-label={`Delete ${title}`}
-                onClick={(e) => {
-                  e.stopPropagation();
-                  onDelete();
-                }}
-              >
-                <Trash2 className="h-3.5 w-3.5" />
-              </Button>
-            ) : null}
-          </div>
-        ) : null}
-        {!useGradient && thumbnailUrl ? (
-          <img
-            src={thumbnailUrl}
-            alt=""
-            className="absolute inset-0 h-full w-full object-cover"
-            onError={() => setThumbFailed(true)}
-          />
-        ) : null}
-        {/* Duration Badge */}
-        {duration ? (
-          <div className="absolute bottom-3 right-3 z-10 bg-black/70 text-white text-[11px] font-bold px-2 py-1 rounded-md backdrop-blur-sm">
-            {duration}
-          </div>
-        ) : null}
-        {/* Play: opens preview dialog when videoUrl is set */}
-        {canPreview ? (
-          <button
-            type="button"
-            className="absolute inset-0 z-[8] flex cursor-pointer items-center justify-center bg-gradient-to-b from-black/0 via-black/20 to-black/30 opacity-0 transition-all duration-300 group-hover:opacity-100"
-            onClick={(e) => {
-              e.stopPropagation();
-              e.preventDefault();
-              setPreviewOpen(true);
-            }}
-            aria-label={`Play preview: ${title}`}
-          >
-            <span className="flex h-12 w-12 items-center justify-center rounded-full border border-white/40 bg-white/20 shadow-lg backdrop-blur-md transition-transform duration-300 group-hover:scale-105 group-hover:border-white/50 group-hover:bg-white/30">
-              <Play className="h-6 w-6 text-white" fill="currentColor" />
-            </span>
-          </button>
-        ) : (
-          <div className="pointer-events-none absolute inset-0 z-[5] flex items-center justify-center bg-black/10 opacity-0 transition-opacity group-hover:opacity-100">
-            <div className="h-12 w-12 rounded-full bg-white/20 backdrop-blur-md flex items-center justify-center border border-white/30">
-              <Play className="h-6 w-6 text-white fill-current" />
-            </div>
-          </div>
-        )}
-      </div>
-
-      <Dialog open={previewOpen} onOpenChange={handlePreviewOpenChange}>
-        <DialogContent
-          className="max-w-4xl w-[min(100vw-1.5rem,56rem)] gap-0 overflow-hidden rounded-2xl border border-grayScale-200 p-0 shadow-2xl"
-          onOpenAutoFocus={(e) => e.preventDefault()}
-        >
-          <div className="border-b border-grayScale-100 bg-gradient-to-r from-[#F8FAFC] to-white px-5 py-4 pr-12 sm:px-6 sm:pr-14">
-            <DialogHeader className="space-y-0.5 p-0 text-left">
-              <p className="text-[10px] font-bold uppercase tracking-[0.2em] text-brand-500">
-                Short preview
-              </p>
-              <DialogTitle className="line-clamp-2 text-left text-base font-bold leading-snug text-grayScale-900 sm:text-lg">
-                {title}
-              </DialogTitle>
-              <p className="pt-0.5 text-left text-xs font-medium text-grayScale-500">
-                The player closes automatically after {previewLengthLabel} in
-                this window (YouTube/Vimeo can’t be trimmed reliably). For the
-                full lesson, use your LMS app.
-              </p>
-            </DialogHeader>
-          </div>
-          <div className="bg-black">
-            {videoPreview.kind === "iframe" && limitedEmbedSrc ? (
-              iframeSessionDone ? (
-                <div className="flex min-h-[220px] flex-col items-center justify-center gap-3 bg-gradient-to-b from-grayScale-900 to-grayScale-950 px-6 py-10 text-center">
-                  <p className="text-sm font-semibold text-white">
-                    Preview time in this window has ended
-                  </p>
-                  <p className="max-w-sm text-xs text-white/60">
-                    The embed is removed after {previewLengthLabel} of real time
-                    so the full video is not available here.
-                  </p>
-                  <Button
-                    type="button"
-                    size="sm"
-                    variant="secondary"
-                    className="mt-1 font-bold"
-                    onClick={() => {
-                      setIframeSessionDone(false);
-                      setIframeSessionKey((k) => k + 1);
-                    }}
-                  >
-                    Start preview again
-                  </Button>
-                  {videoUrl && isAdminOrSuperAdminRole() ? (
-                    <a
-                      href={videoUrl}
-                      target="_blank"
-                      rel="noopener noreferrer"
-                      className="text-xs font-semibold text-brand-300 underline-offset-2 hover:underline"
-                    >
-                      Open full video in new tab
-                    </a>
-                  ) : null}
-                </div>
-              ) : (
-                <div className="relative aspect-video w-full">
-                  <iframe
-                    key={`${iframeSessionKey}-${limitedEmbedSrc}`}
-                    src={limitedEmbedSrc}
-                    title={`${videoPreview.label} preview: ${title}`}
-                    className="absolute inset-0 h-full w-full"
-                    allow="autoplay; fullscreen; picture-in-picture; encrypted-media"
-                    allowFullScreen
-                  />
-                  <div className="pointer-events-none absolute bottom-0 left-0 right-0 z-10 bg-gradient-to-t from-black/90 via-black/50 to-transparent px-3 py-2.5 text-center text-[11px] font-semibold text-white/95">
-                    Stops in {previewLengthLabel} (hard limit)
-                  </div>
-                </div>
-              )
-            ) : videoPreview.kind === "video" ? (
-              <PreviewLimitedFileVideo
-                src={videoPreview.src}
-                maxSeconds={DEFAULT_PREVIEW_MAX_SECONDS}
-              />
-            ) : (
-              <div className="flex min-h-[200px] flex-col items-center justify-center gap-2 bg-grayScale-900 px-6 py-10 text-center">
-                <p className="text-sm font-medium text-white/90">
-                  This link can’t be played inline
-                </p>
-                <p className="max-w-sm text-xs text-white/50">
-                  Use a Vimeo, YouTube, or direct URL to a video file (e.g. MP4)
-                  for an embedded preview.
-                </p>
-                {videoUrl ? (
-                  <a
-                    href={videoUrl}
-                    target="_blank"
-                    rel="noopener noreferrer"
-                    className="mt-1 text-sm font-semibold text-brand-300 underline-offset-2 hover:underline"
-                  >
-                    Open in new tab
-                  </a>
-                ) : null}
-              </div>
-            )}
-          </div>
-        </DialogContent>
-      </Dialog>
-
-      {/* Content */}
-      <div className="p-5 space-y-4 flex-1 flex flex-col">
-        <div
-          className={cn(
-            "flex items-center gap-2",
-            hoverModuleActions ? "justify-start" : "justify-between",
-          )}
-        >
-          {/* Status Badge */}
-          {status ? (
-            <div
-              className={cn(
-                "flex items-center gap-1.5 px-3 py-1 rounded-full text-[11px] font-bold uppercase tracking-wider border min-w-0",
-                status === "Published"
-                  ? "bg-[#ECFDF5] text-[#059669] border-[#D1FAE5]"
-                  : "bg-[#F3F4F6] text-[#6B7280] border-[#E5E7EB]",
-              )}
-            >
-              <div
-                className={cn(
-                  "h-1.5 w-1.5 rounded-full flex-shrink-0",
-                  status === "Published" ? "bg-[#10B981]" : "bg-[#9CA3AF]",
-                )}
-              />
-              {status}
-            </div>
-          ) : (
-            <div className="flex min-w-0 items-center gap-1.5 px-3 py-1 rounded-full text-[11px] font-bold uppercase tracking-wider border border-[#E5E7EB] bg-grayScale-50 text-grayScale-500">
-              <div className="h-1.5 w-1.5 rounded-full flex-shrink-0 bg-[#9CA3AF]" />
-              Lesson
-            </div>
-          )}
-          {!hoverModuleActions ? (
-            <button
-              type="button"
-              className="h-8 w-8 flex flex-shrink-0 items-center justify-center rounded-full hover:bg-grayScale-50 transition-colors text-grayScale-400"
-            >
-              <MoreVertical className="h-5 w-5" />
-            </button>
-          ) : null}
-        </div>
-
-        <h3 className="text-[16px] font-medium text-grayScale-900 line-clamp-2 leading-snug">
-          {title}
-        </h3>
-
-        {/* Actions (footer) — not used for API lesson cards with hover tools */}
-        {!hoverModuleActions ? (
-          <div className="pt-2 space-y-3 mt-auto">
-            <Button
-              variant="outline"
-              onClick={onEdit}
-              className="w-full h-10 rounded-xl border-grayScale-200 text-grayScale-600 font-bold hover:bg-grayScale-50 transition-all flex items-center justify-center gap-2"
-            >
-              <Edit2 className="h-4 w-4" />
-              Edit
-            </Button>
-            {status ? (
-              <Button
-                disabled={status === "Published"}
-                onClick={onPublish}
-                className={cn(
-                  "w-full h-10 rounded-xl font-bold transition-all shadow-sm",
-                  status === "Published"
-                    ? "bg-[#E9D5E5] text-white opacity-100 cursor-default"
-                    : "bg-brand-500 text-white hover:bg-brand-600 shadow-brand-500/10",
-                )}
-              >
-                {status === "Published" ? "Published" : "Publish"}
-              </Button>
-            ) : null}
-          </div>
-        ) : null}
-      </div>
-    </div>
-  );
-}

src/pages/content-management/components/practice-steps/AttachPracticeReviewStep.tsx

@@ -1,232 +0,0 @@
-import {
-  Rocket,
-  GraduationCap,
-  Folder,
-  ChevronUp,
-  ChevronDown,
-  Eye,
-  Video as VideoIcon,
-  ClipboardList,
-} from "lucide-react";
-import { useState } from "react";
-import { Button } from "../../../../components/ui/button";
-import { Card } from "../../../../components/ui/card";
-import { cn } from "../../../../lib/utils";
-
-interface AttachPracticeReviewStepProps {
-  formData: any;
-  prevStep: () => void;
-  onPublish: () => void;
-}
-
-export function AttachPracticeReviewStep({
-  formData,
-  prevStep,
-  onPublish,
-}: AttachPracticeReviewStepProps) {
-  const [isExpanded, setIsExpanded] = useState(true);
-  const [isConfirmed, setIsConfirmed] = useState(false);
-
-  const questions = [
-    { order: "01", text: "What is the main idea of the passage?" },
-    { order: "02", text: "What does the speaker mainly talk about in the..." },
-    { order: "03", text: "Which option best completes the sentence?" },
-  ];
-
-  return (
-    <div className="space-y-10 animate-in fade-in duration-500  mx-auto">
-      {/* 1. Video Summary Card */}
-      <Card className="p-6 border-grayScale-200  rounded-2xl bg-white overflow-hidden">
-        <div className="flex gap-8 items-start">
-          {/* Thumbnail */}
-          <div className="relative h-[150px] w-[260px] rounded-xl overflow-hidden shadow-inner flex-shrink-0">
-            <img
-              src="https://images.unsplash.com/photo-1557425955-df376b5903c8?auto=format&fit=crop&q=80&w=600"
-              alt="Video Thumbnail"
-              className="w-full h-full object-cover"
-            />
-            <div className="absolute bottom-2 right-2 bg-black/70 text-white text-[11px] font-bold px-2 py-0.5 rounded flex items-center gap-1.5">
-              <VideoIcon className="h-3 w-3" />
-              12:30
-            </div>
-          </div>
-
-          {/* Details */}
-          <div className="pt-12">
-            <h3 className="text-[20px] font-bold text-grayScale-900 leading-tight">
-              Intro to Interactive Speaking
-            </h3>
-            <div className="flex flex-wrap gap-3">
-              <div className="h-8 pr-2 rounded-full flex items-center gap-2 text-brand-500  text-[13px]">
-                <GraduationCap className="h-4 w-4" />
-                IELTS
-              </div>
-              <div className="h-8 pr-2 rounded-full  flex items-center gap-2 text-brand-500  text-[13px]">
-                <Folder className="h-4 w-4" />
-                Unit 2: Speaking
-              </div>
-              <div className="h-8 rounded-full   flex items-center gap-2 text-brand-500  text-[13px]">
-                <Folder className="h-4 w-4" />
-                Module 4: Interactive Speaking
-              </div>
-            </div>
-          </div>
-        </div>
-      </Card>
-
-      {/* 2. Attached Practices Section */}
-      <div className="space-y-6">
-        <div className="flex items-center justify-between ">
-          <h2 className="text-[20px] font-bold text-[#0F172A] flex items-center gap-3">
-            Attached Practices
-          </h2>
-          <span className="h-6 px-3 rounded-full bg-grayScale-200/40 text-grayScale-500 text-[12px] font-bold flex items-center justify-center">
-            Total Items: 3
-          </span>
-        </div>
-
-        <Card className="overflow-hidden border border-grayScale-200 shadow-sm rounded-2xl bg-white">
-          {/* Header */}
-          <div
-            className="p-6 flex items-center justify-between transition-colors hover:bg-grayScale-25 cursor-pointer"
-            onClick={() => setIsExpanded(!isExpanded)}
-          >
-            <div className="flex items-center gap-4">
-              <div className="h-12 w-12 rounded-full bg-[#FDF2F8] flex items-center justify-center text-[#9E2891]">
-                <ClipboardList className="h-6 w-6" />
-              </div>
-              <div className="space-y-0.5">
-                <h4 className="text-[17px] font-medium text-grayScale-900">
-                  Multiple Choice
-                </h4>
-                <p className="text-[14px] text-grayScale-400 font-medium">
-                  3 Questions • ~4 min to complete
-                </p>
-              </div>
-            </div>
-            <div className="flex items-center gap-6">
-              <button className="flex items-center gap-2 text-[#9E2891] font-medium text-[14px] hover:opacity-80 transition-opacity">
-                <Eye className="h-4 w-4" />
-                Preview
-              </button>
-              {isExpanded ? (
-                <ChevronUp className="h-6 w-6 text-grayScale-300" />
-              ) : (
-                <ChevronDown className="h-6 w-6 text-grayScale-300" />
-              )}
-            </div>
-          </div>
-
-          {/* Expanded Content (Table) */}
-          {isExpanded && (
-            <div className="animate-in slide-in-from-top-2 duration-300">
-              <div className="border-t border-grayScale-100">
-                <table className="w-full text-left border-collapse">
-                  <thead>
-                    <tr className="bg-white">
-                      <th className="py-4 pl-10 pr-0 w-[80px]"></th>
-                      <th className="py-4 px-4 text-[13px] font-medium text-[#A5B4C1] uppercase tracking-wide w-24">
-                        Order
-                      </th>
-                      <th className="py-4 px-4 text-[13px] font-medium text-[#A5B4C1] uppercase tracking-wide">
-                        Versions
-                      </th>
-                    </tr>
-                  </thead>
-                  <tbody className="border-t border-grayScale-100">
-                    {questions.map((q, i) => (
-                      <tr
-                        key={i}
-                        className="border-b border-grayScale-200 last:border-0 group hover:bg-grayScale-25 transition-colors"
-                      >
-                        <td className="py-6 pl-10 pr-0 text-center">
-                          <GripVertical className="h-4 w-4 text-[#A5B4C1]" />
-                        </td>
-                        <td className="py-6 px-4">
-                          <span className="text-[15px] text-[#A5B4C1]">
-                            {q.order}
-                          </span>
-                        </td>
-                        <td className="py-6 px-4">
-                          <p className="text-[15px] font-medium text-[#0D1421]">
-                            {q.text}
-                          </p>
-                        </td>
-                      </tr>
-                    ))}
-                  </tbody>
-                </table>
-              </div>
-            </div>
-          )}
-        </Card>
-      </div>
-
-      {/* 3. Confirmation Checkbox */}
-      <div className="bg-[#F1F5F9] border border-[#E2E8F0] px-6 py-4 rounded-[12px] flex items-start gap-4">
-        <input
-          type="checkbox"
-          id="confirm"
-          checked={isConfirmed}
-          onChange={(e) => setIsConfirmed(e.target.checked)}
-          className="mt-1 h-5 w-5 rounded border-grayScale-300 text-brand-500 focus:ring-brand-500 cursor-pointer"
-        />
-        <div className="">
-          <label
-            htmlFor="confirm"
-            className="text-[16px] font-bold text-grayScale-900 cursor-pointer"
-          >
-            I confirm these details are correct
-          </label>
-          <p className="text-[13px] text-grayScale-400">
-            This action cannot be undone immediately. Rollback requires manual
-            intervention.
-          </p>
-        </div>
-      </div>
-
-      {/* 4. Action Footer */}
-      <div className="flex items-center justify-between pt-10 px-2">
-        <Button
-          onClick={prevStep}
-          variant="outline"
-          className="h-12 px-10 rounded-[6px] bg-transparent border-grayScale-400 font-bold text-grayScale-600  transition-all"
-        >
-          Back
-        </Button>
-        <div className="flex gap-4">
-          <Button
-            variant="outline"
-            className="h-12 px-10 rounded-[6px] border-grayScale-200 font-bold text-grayScale-600 bg-white shadow-none transition-all"
-          >
-            Save as Draft
-          </Button>
-          <Button
-            onClick={onPublish}
-            disabled={!isConfirmed}
-            className={cn(
-              "h-12 px-10 rounded-[6px] font-bold text-white shadow-xl flex items-center gap-3 transition-all active:scale-95",
-              isConfirmed
-                ? "bg-[#9E2891] hover:bg-[#8A237E] shadow-[#9E2891]/20"
-                : "bg-grayScale-200 cursor-not-allowed opacity-50",
-            )}
-          >
-            <Rocket className="h-5 w-5" />
-            Publish Now
-          </Button>
-        </div>
-      </div>
-    </div>
-  );
-}
-
-// Add GripVertical helper since it might not be imported from lucide-react if I missed it
-function GripVertical({ className }: { className?: string }) {
-  return (
-    <div className={cn("grid grid-cols-2 gap-0.5", className)}>
-      {[...Array(6)].map((_, i) => (
-        <div key={i} className="h-0.5 w-0.5 rounded-full bg-current" />
-      ))}
-    </div>
-  );
-}

src/pages/content-management/components/practice-steps/AttachPracticeStep1.tsx

@@ -1,168 +0,0 @@
-import { LayoutGrid, Video, ArrowRight } from "lucide-react";
-import { Button } from "../../../../components/ui/button";
-import { Card } from "../../../../components/ui/card";
-import { Select } from "../../../../components/ui/select";
-import { cn } from "../../../../lib/utils";
-
-interface AttachPracticeStep1Props {
-  formData: any;
-  setFormData: (data: any) => void;
-  nextStep: () => void;
-  onCancel: () => void;
-}
-
-export function AttachPracticeStep1({
-  formData,
-  setFormData,
-  nextStep,
-  onCancel,
-}: AttachPracticeStep1Props) {
-  return (
-    <Card className="overflow-hidden max-w-4xl mx-auto border-grayScale-100 rounded-3xl bg-white shadow-sm animate-in fade-in duration-500">
-      <div className="space-y-6 p-12">
-        {/* Select Program */}
-        <div className="space-y-4">
-          <label className="text-[14px] font-medium text-[#0F172A] ml-1">
-            Select Program
-          </label>
-          <div className="relative">
-            <div className="absolute left-5 top-1/2 -translate-y-1/2 pointer-events-none z-10">
-              <LayoutGrid className="h-5 w-5 text-grayScale-400" />
-            </div>
-            <Select
-              className="h-[56px] w-full rounded-[10px] border-grayScale-200 bg-[#fff] pl-14 text-grayScale-800 font-bold focus:border-brand-500 transition-all text-sm"
-              value={formData.program}
-              onChange={(e) =>
-                setFormData({ ...formData, program: e.target.value })
-              }
-            >
-              <option value="">Choose Program</option>
-              <option value="skill">Skill-Based Courses</option>
-              <option value="exams">English Proficiency Exams</option>
-            </Select>
-          </div>
-        </div>
-
-        {/* Select Module */}
-        <div className="space-y-4">
-          <label className="text-[14px] font-medium text-[#0F172A] ml-1">
-            Select Module
-          </label>
-          <div className="relative">
-            <div className="absolute left-5 top-1/2 -translate-y-1/2 pointer-events-none z-10">
-              <LayoutGrid className="h-5 w-5 text-grayScale-400" />
-            </div>
-            <Select
-              className="h-[56px] w-full rounded-[10px] border-grayScale-200 bg-[#fff] pl-14 text-grayScale-800 font-bold focus:border-brand-500 transition-all text-sm"
-              value={formData.module}
-              onChange={(e) =>
-                setFormData({ ...formData, module: e.target.value })
-              }
-            >
-              <option value="">Choose Module</option>
-              <option value="m1">Module 1: Basic Phrases</option>
-              <option value="m2">Module 2: Intermediate Grammar</option>
-            </Select>
-          </div>
-          <p className="text-[13px] text-grayScale-400 font-medium px-1">
-            Select the specific learning module this practice will reinforce.
-          </p>
-        </div>
-
-        {/* Select Video */}
-        <div className="space-y-4">
-          <label className="text-[14px] font-medium text-[#0F172A] ml-1">
-            Select Video
-          </label>
-          <div className="relative">
-            <div className="absolute left-5 top-1/2 -translate-y-1/2 pointer-events-none z-10">
-              <Video className="h-5 w-5 text-grayScale-400" />
-            </div>
-            <Select
-              className="h-[56px] w-full rounded-[10px] border-grayScale-200 bg-[#fff] pl-14 text-grayScale-800 font-bold focus:border-brand-500 transition-all text-sm"
-              value={formData.video}
-              onChange={(e) =>
-                setFormData({ ...formData, video: e.target.value })
-              }
-            >
-              <option value="">Choose a video</option>
-              <option value="v1">Intro to Interactive Speaking</option>
-              <option value="v2">Business Meeting Etiquette</option>
-            </Select>
-          </div>
-          <p className="text-[13px] text-grayScale-400 font-medium px-1">
-            Select the specific video this practice will reinforce.
-          </p>
-        </div>
-
-        {/* Select Question Type */}
-        <div className="space-y-4">
-          <label className="text-[14px] font-medium text-[#0F172A] ml-1">
-            Select Question Type
-          </label>
-          <div className="relative">
-            <div className="absolute left-5 top-1/2 -translate-y-1/2 pointer-events-none z-10">
-              <LayoutGrid className="h-5 w-5 text-grayScale-400" />
-            </div>
-            <Select
-              className="h-[56px] w-full rounded-[10px] border-grayScale-200 bg-[#fff] pl-14 text-grayScale-800 font-bold focus:border-brand-500 transition-all text-sm"
-              value={formData.questionType}
-              onChange={(e) =>
-                setFormData({ ...formData, questionType: e.target.value })
-              }
-            >
-              <option value="">Choose question type</option>
-              <option value="speaking">Speaking Practice</option>
-              <option value="listening">Listening Quiz</option>
-            </Select>
-          </div>
-          <p className="text-[13px] text-grayScale-400 font-medium px-1">
-            Select one question type that associates with th selected video
-          </p>
-        </div>
-
-        {/* Set Version */}
-        <div className="space-y-4">
-          <label className="text-[14px] font-medium text-[#0F172A] ml-1">
-            Set Version
-          </label>
-          <div className="relative">
-            <div className="absolute left-5 top-1/2 -translate-y-1/2 pointer-events-none z-10">
-              <LayoutGrid className="h-5 w-5 text-grayScale-400" />
-            </div>
-            <Select
-              className="h-[56px] w-full rounded-[10px] border-grayScale-200 bg-[#fff] pl-14 text-grayScale-800 font-bold focus:border-brand-500 transition-all text-sm"
-              value={formData.version}
-              onChange={(e) =>
-                setFormData({ ...formData, version: e.target.value })
-              }
-            >
-              <option value="">Choose versions</option>
-              <option value="v1">Version 1.0</option>
-              <option value="v2">Version 2.0</option>
-            </Select>
-          </div>
-          <p className="text-[13px] text-grayScale-400 font-medium px-1">
-            Select one or more versions
-          </p>
-        </div>
-      </div>
-
-      <div className="flex items-center justify-between border-t border-grayScale-200 bg-[#F8FAFC] py-4 px-12">
-        <button
-          className="text-[14px] text-grayScale-500 transition-colors hover:text-grayScale-700"
-          onClick={onCancel}
-        >
-          Cancel
-        </button>
-        <Button
-          onClick={nextStep}
-          className="h-10 px-12 rounded-[6px] bg-[#9E2891] text-[14px] font-bold text-white shadow-lg shadow-brand-500/10 transition-all active:scale-95 flex items-center gap-3"
-        >
-          Next: Review
-          <ArrowRight className="h-4 w-4" />
-        </Button>
-      </div>
-    </Card>
-  );
-}

src/pages/content-management/components/practice-steps/ContextStep.tsx

@@ -1,164 +0,0 @@
-import { GraduationCap, ArrowRight, LayoutGrid, Monitor } from "lucide-react";
-import { Button } from "../../../../components/ui/button";
-import { Card } from "../../../../components/ui/card";
-import { Select } from "../../../../components/ui/select";
-
-interface ContextStepProps {
-  formData: any;
-  setFormData: (data: any) => void;
-  nextStep: () => void;
-  navigate: (path: string) => void;
-  level: string;
-  isModuleContext?: boolean;
-  isCourseContext?: boolean;
-}
-
-export function ContextStep({
-  formData,
-  setFormData,
-  nextStep,
-  navigate,
-  level,
-  isModuleContext,
-  isCourseContext,
-}: ContextStepProps) {
-  return (
-    <Card className="overflow-hidden border-grayScale-300  rounded-2xl bg-white animate-in fade-in duration-500">
-      <div className="border-b border-grayScale-50 px-8 pt-8 pb-4">
-        <h2 className="text-xl font-bold text-grayScale-900 leading-none">
-          Step 1: Context Definition
-        </h2>
-        <p className="text-grayScale-600 text-base mt-3">
-          Define the educational level and curriculum module for this practice.
-        </p>
-      </div>
-
-      <div className="relative">
-        <div className="absolute inset-0 flex items-center" aria-hidden="true">
-          <div className="w-full border-t border-grayScale-200" />
-        </div>
-        <div className="relative flex justify-center">
-          <div
-            className="h-[0.5px] w-full opacity-20 rounded-full"
-            style={{
-              background: "gray",
-            }}
-          />
-        </div>
-      </div>
-
-      <div className="space-y-10 p-10">
-        {/* Program Field */}
-        <div className="space-y-3">
-          <label className="text-[16px] text-grayScale-700 ml-1">
-            Program{" "}
-            <span className="text-grayScale-300 font-medium">
-              (Auto-selected)
-            </span>
-          </label>
-          <div className="relative">
-            <div className="absolute left-6 top-1/2 -translate-y-1/2">
-              <GraduationCap className="h-6 w-6 text-grayScale-600" />
-            </div>
-            <Select
-              className="h-12 w-full rounded-[6px] border-grayScale-400 bg-[#fff] pl-16 text-grayScale-800 font-bold focus:border-brand-500 focus:ring-0 transition-all cursor-default"
-              disabled
-            >
-              <option>{formData.program || "Intermediate"}</option>
-            </Select>
-          </div>
-        </div>
-
-        {/* Course Field */}
-        <div className="space-y-3">
-          <label className="text-[16px] font-bold text-grayScale-700 ml-1">
-            Course{" "}
-            <span className="text-grayScale-300 font-medium">
-              (Auto-selected)
-            </span>
-          </label>
-          <div className="relative">
-            <div className="absolute left-6 top-1/2 -translate-y-1/2">
-              <GraduationCap className="h-6 w-6 text-grayScale-600" />
-            </div>
-            <Select
-              className="h-12 w-full rounded-[6px] border-grayScale-400 bg-[#fff] pl-16 text-grayScale-800 font-bold focus:border-brand-500 focus:ring-0 transition-all cursor-default"
-              disabled
-            >
-              <option>{formData.course || "B2"}</option>
-            </Select>
-          </div>
-        </div>
-
-        {/* Select Module Field */}
-        {(isModuleContext || isCourseContext) && (
-          <div className="space-y-3">
-            <label className="text-[16px] font-bold text-grayScale-700 ml-1">
-              Select Module
-            </label>
-            <div className="relative">
-              <div className="absolute left-6 top-1/2 -translate-y-1/2">
-                <LayoutGrid className="h-6 w-6 text-grayScale-400" />
-              </div>
-              <Select className="h-12 w-full rounded-[6px] border-grayScale-300 bg-[#fff] pl-16 text-grayScale-800 font-bold focus:border-brand-500 focus:ring-0 transition-all">
-                <option value="">Choose a module...</option>
-                <option value="m1">Introduction Basics</option>
-                <option value="m2">Daily Routines</option>
-                <option value="m3">Travel Essentials</option>
-              </Select>
-            </div>
-            <p className="text-[13px] text-grayScale-400 font-medium px-2">
-              Select the specific learning module this practice will reinforce.
-            </p>
-          </div>
-        )}
-
-        {/* Select Video Field (Conditional) */}
-        {isModuleContext && (
-          <div className="space-y-3 animate-in fade-in slide-in-from-top-2 duration-300">
-            <label className="text-[16px] font-bold text-grayScale-700 ml-1">
-              Select Video
-            </label>
-            <div className="relative">
-              <div className="absolute left-6 top-1/2 -translate-y-1/2">
-                <Monitor className="h-6 w-6 text-grayScale-400" />
-              </div>
-              <Select
-                className="h-12 w-full rounded-[6px] border-grayScale-300 bg-[#fff] pl-16 text-grayScale-800 font-bold focus:border-brand-500 focus:ring-0 transition-all"
-                value={formData.selectedVideo}
-                onChange={(e) =>
-                  setFormData({ ...formData, selectedVideo: e.target.value })
-                }
-              >
-                <option value="">Choose a video</option>
-                <option value="v1">Intro to Greetings</option>
-                <option value="v2">Advanced Grammar</option>
-              </Select>
-            </div>
-            <p className="text-[13px] text-grayScale-400 font-medium px-2">
-              Select the specific learning module this practice will reinforce.
-            </p>
-          </div>
-        )}
-      </div>
-
-      <div className="flex items-center justify-between border-t border-grayScale-100 bg-[#F8FAFC] p-4 px-12">
-        <button
-          className="text-[14px] font-bold text-grayScale-500 transition-colors hover:text-grayScale-700"
-          onClick={() =>
-            navigate(`/new-content/learn-english/${level}/courses`)
-          }
-        >
-          Cancel
-        </button>
-        <Button
-          onClick={nextStep}
-          className="h-10 px-10 rounded-[6px] bg-brand-500 text-[14px] font-bold text-white  transition-all active:scale-95 flex items-center gap-2"
-        >
-          Next: {isModuleContext ? "Persona" : "Scenario"}{" "}
-          <ArrowRight className="h-5 w-5" />
-        </Button>
-      </div>
-    </Card>
-  );
-}

src/pages/content-management/components/practice-steps/PersonaStep.tsx

@@ -1,94 +0,0 @@
-import { Check, ArrowRight } from "lucide-react";
-import { Button } from "../../../../components/ui/button";
-import {
-  Avatar,
-  AvatarFallback,
-  AvatarImage,
-} from "../../../../components/ui/avatar";
-import { cn } from "../../../../lib/utils";
-import { PERSONAS } from "./constants";
-
-interface PersonaStepProps {
-  selectedPersona: string | null;
-  setSelectedPersona: (id: string) => void;
-  nextStep: () => void;
-  prevStep: () => void;
-}
-
-export function PersonaStep({
-  selectedPersona,
-  setSelectedPersona,
-  nextStep,
-  prevStep,
-}: PersonaStepProps) {
-  return (
-    <div className="space-y-8">
-      <div className="space-y-1 px-2">
-        <h2 className="text-2xl font-extrabold text-grayScale-700">
-          Select Personas
-        </h2>
-        <p className="text-grayScale-400 text-lg">
-          Choose the characters that will participate in this practice scenario.
-        </p>
-      </div>
-      <div className="grid grid-cols-2 gap-6 sm:grid-cols-4">
-        {PERSONAS.map((persona) => {
-          const isSelected = selectedPersona === persona.id;
-          return (
-            <div
-              key={persona.id}
-              onClick={() => setSelectedPersona(persona.id)}
-              className={cn(
-                "group relative w-[260px] cursor-pointer rounded-2xl border-2 bg-white p-6 transition-all duration-300",
-                isSelected
-                  ? "border-brand-500"
-                  : "border-grayScale-100 hover:border-brand-200",
-              )}
-            >
-              {/* Top-right checkmark badge */}
-              {isSelected && (
-                <div className="absolute right-2.5 top-2.5 grid h-6 w-6 place-items-center rounded-full bg-brand-500 text-white  z-10">
-                  <Check className="h-4 w-4 stroke-[3]" />
-                </div>
-              )}
-              <div className="flex flex-col items-center gap-4">
-                {/* Avatar with conditional purple ring */}
-                <div
-                  className={cn(
-                    "rounded-full p-[3px] transition-all duration-300",
-                    isSelected ? "bg-brand-500" : "bg-transparent",
-                  )}
-                >
-                  <Avatar className="h-24 w-24 border-2 border-white">
-                    <AvatarImage src={persona.avatar} />
-                    <AvatarFallback>
-                      {persona.name.substring(0, 2)}
-                    </AvatarFallback>
-                  </Avatar>
-                </div>
-                <span className="text-lg font-bold text-grayScale-700">
-                  {persona.name}
-                </span>
-              </div>
-            </div>
-          );
-        })}
-      </div>
-      <div className="flex items-center justify-between pt-8">
-        <Button
-          onClick={prevStep}
-          variant="outline"
-          className="h-10 w-20 rounded-[6px] border-grayScale-200  text-grayScale-600"
-        >
-          Back
-        </Button>
-        <Button
-          onClick={nextStep}
-          className="h-10 rounded-[6px] bg-brand-500 px-8  hover:bg-brand-600 shadow-md shadow-brand-500/20"
-        >
-          Next: Questions <ArrowRight className="ml-2 h-4 w-4" />
-        </Button>
-      </div>
-    </div>
-  );
-}

src/pages/content-management/components/practice-steps/ProgramAttachReviewStep.tsx

@@ -1,107 +0,0 @@
-import { Edit2, Trash2, ArrowRight } from "lucide-react";
-import { Button } from "../../../../components/ui/button";
-import { Card } from "../../../../components/ui/card";
-import { cn } from "../../../../lib/utils";
-
-interface ProgramAttachReviewStepProps {
-  formData: any;
-  prevStep: () => void;
-  onPublish: () => void;
-  onCancel: () => void;
-}
-
-const MOCK_QUESTIONS = [
-  {
-    id: "q1",
-    title: "1. Speak About The Photo",
-    description:
-      'Passage: "Good morning, everyone. I\'d like to start by reviewing the quarterly figures. As you can see from the chart..."',
-  },
-  {
-    id: "q2",
-    title: "2. Fill In the Blank",
-    description:
-      'Passage: "Attention passengers on Flight 492 to London. We are now inviting passengers with small children..."',
-  },
-  {
-    id: "q3",
-    title: "3. Writing Part 1",
-    description:
-      'Passage: "In today\'s lecture on astrophysics, we will discuss the concept of event horizons and their implications..."',
-  },
-];
-
-export function ProgramAttachReviewStep({
-  formData,
-  prevStep,
-  onPublish,
-  onCancel,
-}: ProgramAttachReviewStepProps) {
-  return (
-    <div className="space-y-6 animate-in fade-in duration-500">
-      {/* Questions List */}
-      <div className="space-y-6">
-        {MOCK_QUESTIONS.map((q) => (
-          <Card
-            key={q.id}
-            className="group relative flex border-grayScale-200 rounded-2xl bg-white  overflow-hidden  transition-all"
-          >
-            {/* Grip Area */}
-            <div className="w-[50px] flex items-center justify-center bg-white border-r border-grayScale-200">
-              <GripVertical className="h-3 w-3 text-grayScale-600" />
-            </div>
-
-            {/* Content Area */}
-            <div className="flex-1 p-8 py-10">
-              <h4 className="text-[18px] font-medium text-[#0F172A] mb-3 leading-tight">
-                {q.title}
-              </h4>
-              <p className="text-[14px] text-grayScale-400  leading-relaxed line-clamp-2">
-                {q.description}
-              </p>
-            </div>
-
-            {/* Actions Area (Vertical Stack) */}
-            <div className="w-[50px] border-l border-grayScale-200 flex flex-col items-center justify-center divide-y divide-grayScale-50">
-              <button className="flex-1 w-full flex items-center justify-center text-grayScale-600 hover:text-brand-500 transition-colors border-b border-grayScale-200">
-                <Edit2 className="h-4 w-4" />
-              </button>
-              <button className="flex-1 w-full flex items-center justify-center text-grayScale-600 hover:text-red-500 transition-colors">
-                <Trash2 className="h-4 w-4" />
-              </button>
-            </div>
-          </Card>
-        ))}
-      </div>
-
-      {/* Footer Actions */}
-      <div className="flex bg-[#F8FAFC] border border-grayScale-200 items-center rounded-[12px] justify-between py-4 px-6">
-        <Button
-          onClick={onCancel}
-          variant="outline"
-          className="h-10 px-6 rounded-[6px] border-grayScale-100 font-bold text-grayScale-500 bg-white hover:bg-grayScale-50 transition-all text-lg"
-        >
-          Cancel
-        </Button>
-        <Button
-          onClick={onPublish}
-          className="h-10 px-10 rounded-[6px] bg-[#9E2891] text-[16px] font-medium text-white  transition-all active:scale-95 flex items-center gap-3"
-        >
-          Next: Review & Publish
-          <ArrowRight className="h-4 w-4" />
-        </Button>
-      </div>
-    </div>
-  );
-}
-
-// GripVertical helper
-function GripVertical({ className }: { className?: string }) {
-  return (
-    <div className={cn("grid grid-cols-2 gap-0.5", className)}>
-      {[...Array(6)].map((_, i) => (
-        <div key={i} className="h-1 w-1 rounded-full bg-current" />
-      ))}
-    </div>
-  );
-}

src/pages/content-management/components/practice-steps/ProgramAttachStep1.tsx

@@ -1,141 +0,0 @@
-import { LayoutGrid, Plus, ArrowRight } from "lucide-react";
-import { Button } from "../../../../components/ui/button";
-import { Card } from "../../../../components/ui/card";
-import { Select } from "../../../../components/ui/select";
-import { cn } from "../../../../lib/utils";
-
-interface ProgramAttachStep1Props {
-  formData: any;
-  setFormData: (data: any) => void;
-  nextStep: () => void;
-  onCancel: () => void;
-}
-
-export function ProgramAttachStep1({
-  formData,
-  setFormData,
-  nextStep,
-  onCancel,
-}: ProgramAttachStep1Props) {
-  return (
-    <Card className="overflow-hidden border-grayScale-100 rounded-[16px] bg-white shadow-sm animate-in fade-in duration-500">
-      <div className="space-y-6 p-8 pb-16">
-        {/* Select Program */}
-        <div className="space-y-4">
-          <label className="text-[14px] font-medium text-[#0F172A] ml-1">
-            Select Program
-          </label>
-          <div className="relative">
-            <div className="absolute left-6 top-1/2 -translate-y-1/2 pointer-events-none z-10">
-              <LayoutGrid className="h-5 w-5 text-grayScale-400" />
-            </div>
-            <Select
-              className="h-[56px] w-full rounded-[12px] border-grayScale-200 bg-white pl-16 text-grayScale-700 font-medium focus:border-brand-500 transition-all text-sm appearance-none"
-              value={formData.program}
-              onChange={(e) =>
-                setFormData({ ...formData, program: e.target.value })
-              }
-            >
-              <option value="">Choose Program</option>
-              <option value="exams">English Proficiency Exams</option>
-              <option value="skill">Skill-Based Courses</option>
-            </Select>
-          </div>
-        </div>
-
-        {/* Tests (Auto Select) */}
-        <div className="space-y-4">
-          <label className="text-[14px] font-medium text-grayScale-900 ml-1">
-            Tests{" "}
-            <span className="text-grayScale-400 font-medium">
-              (Auto Select)
-            </span>
-          </label>
-          <div className="relative">
-            <div className="absolute left-6 top-1/2 -translate-y-1/2 pointer-events-none z-10">
-              <LayoutGrid className="h-5 w-5 text-grayScale-400" />
-            </div>
-            <div className="h-[56px] w-full rounded-[12px] border border-grayScale-200 bg-white flex items-center pl-16 text-grayScale-700 font-medium text-sm">
-              Mock Exam 1
-            </div>
-          </div>
-        </div>
-
-        <div className="w-full border-t border-grayScale-300" />
-
-        {/* Select Question Type */}
-        <div className="space-y-4">
-          <label className="text-[14px] font-medium text-[#0F172A] ml-1">
-            Select Question Type
-          </label>
-          <div className="relative">
-            <div className="absolute left-6 top-1/2 -translate-y-1/2 pointer-events-none z-10">
-              <LayoutGrid className="h-5 w-5 text-grayScale-400" />
-            </div>
-            <Select
-              className="h-[56px] w-full rounded-[12px] border-grayScale-200 bg-white pl-16 text-grayScale-700 font-medium focus:border-brand-500 transition-all text-sm appearance-none"
-              value={formData.questionType}
-              onChange={(e) =>
-                setFormData({ ...formData, questionType: e.target.value })
-              }
-            >
-              <option value="">Choose question type</option>
-              <option value="Speaking Practice">Speaking Practice</option>
-              <option value="Writing Part 1">Writing Part 1</option>
-            </Select>
-          </div>
-          <p className="text-[13px] text-grayScale-400 font-medium px-1">
-            Select one question type that associates with th selected video
-          </p>
-        </div>
-
-        {/* Set Version */}
-        <div className="space-y-4">
-          <label className="text-[14px] font-medium text-[#0F172A] ml-1">
-            Set Version
-          </label>
-          <div className="relative">
-            <div className="absolute left-6 top-1/2 -translate-y-1/2 pointer-events-none z-10">
-              <LayoutGrid className="h-5 w-5 text-grayScale-400" />
-            </div>
-            <Select
-              className="h-[56px] w-full rounded-[12px] border-grayScale-200 bg-white pl-16 text-grayScale-700 font-medium focus:border-brand-500 transition-all text-sm appearance-none"
-              value={formData.version}
-              onChange={(e) =>
-                setFormData({ ...formData, version: e.target.value })
-              }
-            >
-              <option value="">Choose a version</option>
-              <option value="V 1.0">V 1.0</option>
-              <option value="V 2.0">V 2.0</option>
-            </Select>
-          </div>
-        </div>
-
-        {/* Add More Button */}
-        <button className="flex items-center gap-2 text-[#9E2891] font-medium text-[14px] group transition-all hover:translate-x-1">
-          <div className="h-5 w-5 rounded-full border-2 border-[#9E2891] flex items-center justify-center">
-            <Plus className="h-3 w-3" />
-          </div>
-          Add More
-        </button>
-      </div>
-
-      <div className="flex items-center justify-between border-t border-grayScale-200 bg-[#F8FAFC] py-4 px-12">
-        <button
-          className="text-[14px] text-grayScale-500 transition-colors hover:text-grayScale-700"
-          onClick={onCancel}
-        >
-          Cancel
-        </button>
-        <Button
-          onClick={nextStep}
-          className="h-10 px-12 rounded-[6px] bg-[#9E2891] text-[14px] font-bold text-white shadow-lg shadow-brand-500/10 transition-all active:scale-95 flex items-center gap-3"
-        >
-          Next: Review
-          <ArrowRight className="h-4 w-4" />
-        </Button>
-      </div>
-    </Card>
-  );
-}

src/pages/content-management/components/practice-steps/QuestionsStep.tsx

@@ -1,156 +0,0 @@
-import { GripVertical, Trash2, Plus, ArrowRight } from "lucide-react";
-import { Button } from "../../../../components/ui/button";
-import { Card } from "../../../../components/ui/card";
-import { Input } from "../../../../components/ui/input";
-import { VoicePrompt } from "./VoicePrompt";
-
-interface QuestionsStepProps {
-  formData: any;
-  setFormData: (data: any) => void;
-  nextStep: () => void;
-  prevStep: () => void;
-}
-
-export function QuestionsStep({
-  formData,
-  setFormData,
-  nextStep,
-  prevStep,
-}: QuestionsStepProps) {
-  const addQuestion = () => {
-    const newQuestion = {
-      id: `q${formData.questions.length + 1}`,
-      text: "",
-      type: "Speaking",
-      voicePrompt: "upload_audio.mp3",
-      sampleAnswer: "upload_audio.mp3",
-    };
-    setFormData({
-      ...formData,
-      questions: [...formData.questions, newQuestion],
-    });
-  };
-
-  return (
-    <div className="space-y-6">
-      <div className="space-y-1 px-2">
-        <h2 className="text-2xl font-bold text-grayScale-700">
-          Create Practice Questions
-        </h2>
-        <p className="text-grayScale-400 text-lg">
-          Define the dialogue flow and interactions for this scenario.
-        </p>
-      </div>
-      <div className="space-y-6">
-        {formData.questions.map((q: any, i: number) => (
-          <Card
-            key={q.id}
-            className="overflow-hidden border-grayScale-50 shadow-soft rounded-2xl bg-white relative"
-          >
-            <div className="absolute left-0 top-0 bottom-0 w-[5px] bg-brand-500" />
-            <div className="px-5 pb-7 pt-2 space-y-6">
-              <div className="flex items-center justify-between border-b border-grayScale-50 pb-4 mb-4">
-                <div className="flex items-center gap-3">
-                  <GripVertical className="h-5 w-5 text-brand-500 cursor-grab" />
-                  <span className="font-bold text-grayScale-500 text-base">
-                    Question {i + 1}
-                  </span>
-                </div>
-                <Button
-                  variant="ghost"
-                  size="icon"
-                  className="text-brand-500 hover:bg-brand-50 rounded-lg"
-                  onClick={() => {
-                    const newQuestions = formData.questions.filter(
-                      (item: any) => item.id !== q.id,
-                    );
-                    setFormData({ ...formData, questions: newQuestions });
-                  }}
-                >
-                  <Trash2 className="h-4 w-4" />
-                </Button>
-              </div>
-              <div className="grid grid-cols-1 md:grid-cols-12 gap-8">
-                <div className="md:col-span-8 space-y-3">
-                  <label className="text-[10px] font-bold text-grayScale-700 uppercase tracking-widest">
-                    QUESTION PROMPT
-                  </label>
-                  <Input
-                    value={q.text}
-                    onChange={(e) => {
-                      const newQuestions = [...formData.questions];
-                      newQuestions[i].text = e.target.value;
-                      setFormData({ ...formData, questions: newQuestions });
-                    }}
-                    className="h-16 rounded-xl border-grayScale-200 font-medium px-6 text-base placeholder:text-grayScale-400 bg-white text-grayScale-700"
-                    placeholder="e.g. How long have you been studying English?"
-                  />
-                </div>
-                <div className="md:col-span-4 space-y-3">
-                  <label className="text-[10px] font-bold text-grayScale-700 uppercase tracking-widest">
-                    VOICE PROMPT
-                  </label>
-                  <VoicePrompt
-                    src={q.voicePrompt}
-                    filename={q.voicePrompt}
-                    onRemove={() => {
-                      const newQuestions = [...formData.questions];
-                      newQuestions[i].voicePrompt = "";
-                      setFormData({ ...formData, questions: newQuestions });
-                    }}
-                  />
-                </div>
-              </div>
-              <div className="md:w-1/3 space-y-3">
-                <label className="text-[10px] font-bold text-grayScale-700 uppercase tracking-widest">
-                  SAMPLE ANSWER PROMPT
-                </label>
-                <VoicePrompt
-                  src={q.sampleAnswer}
-                  filename={q.sampleAnswer}
-                  onRemove={() => {
-                    const newQuestions = [...formData.questions];
-                    newQuestions[i].sampleAnswer = "";
-                    setFormData({ ...formData, questions: newQuestions });
-                  }}
-                />
-              </div>
-            </div>
-          </Card>
-        ))}
-        <div className="flex items-center gap-8 pt-4">
-          <button
-            onClick={addQuestion}
-            className="flex items-center gap-3 text-brand-500 font-bold text-base hover:opacity-80 transition-all"
-          >
-            <div className="flex h-5 w-5 items-center justify-center rounded-full border-2 border-brand-500">
-              <Plus className="h-3 w-3 stroke-[4]" />
-            </div>{" "}
-            Add New Question
-          </button>
-          <button className="flex items-center gap-3 text-brand-500 font-bold text-base hover:opacity-80 transition-all">
-            <div className="flex h-5 w-5 items-center justify-center rounded-full border-2 border-brand-500">
-              <Plus className="h-3 w-3 stroke-[4]" />
-            </div>{" "}
-            Add Tips
-          </button>
-        </div>
-      </div>
-      <div className="flex items-center justify-between pt-8">
-        <Button
-          onClick={prevStep}
-          variant="outline"
-          className="h-10 w-20 rounded-[6px] border-grayScale-200 font-bold text-grayScale-600 shadow-sm"
-        >
-          Back
-        </Button>
-        <Button
-          onClick={nextStep}
-          className="h-10 rounded-[6px] bg-brand-500 px-8 font-bold  "
-        >
-          Next: Review <ArrowRight className="ml-2 h-4 w-4" />
-        </Button>
-      </div>
-    </div>
-  );
-}

src/pages/content-management/components/practice-steps/ReviewStep.tsx

@@ -1,305 +0,0 @@
-import { Edit2, GripVertical, Trash2, Rocket, Info } from "lucide-react";
-import { Button } from "../../../../components/ui/button";
-import { Card } from "../../../../components/ui/card";
-import { Input } from "../../../../components/ui/input";
-import {
-  Avatar,
-  AvatarFallback,
-  AvatarImage,
-} from "../../../../components/ui/avatar";
-import { PERSONAS } from "./constants";
-import { VoicePrompt } from "./VoicePrompt";
-
-interface ReviewStepProps {
-  formData: any;
-  selectedPersona: string | null;
-  prevStep: () => void;
-  setIsPublished: (val: boolean) => void;
-  isModuleContext?: boolean;
-}
-
-export function ReviewStep({
-  formData,
-  selectedPersona,
-  prevStep,
-  setIsPublished,
-  isModuleContext,
-}: ReviewStepProps) {
-  const persona = PERSONAS.find((p) => p.id === selectedPersona);
-
-  return (
-    <div className="space-y-10 animate-in fade-in duration-700">
-      <div className="flex items-center justify-between px-2">
-        <h2 className="text-2xl font-bold text-grayScale-900 tracking-tight">
-          Review Practice Questions
-        </h2>
-      </div>
-
-      {/* 1. Basic Info Card (Image 1436.1) */}
-      <Card className="overflow-hidden border border-grayScale-200 rounded-2xl bg-white ">
-        <div className="border-b border-grayScale-50 p-4 px-5 flex justify-between items-center bg-white">
-          <h3 className="text-[17px] font-extrabold text-grayScale-900">
-            Basic Information
-          </h3>
-          <Button
-            variant="ghost"
-            size="sm"
-            className="text-brand-500 font-bold hover:bg-brand-50 gap-2 h-9"
-          >
-            <Edit2 className="h-4 w-4" />
-            Edit
-          </Button>
-        </div>
-        {/* Gradient Divider */}
-        <div className="relative">
-          <div
-            className="absolute inset-0 flex items-center"
-            aria-hidden="true"
-          >
-            <div className="w-full border-t border-grayScale-100" />
-          </div>
-          <div className="relative flex justify-center">
-            <div
-              className="h-[0.5px] w-full opacity-20 rounded-full"
-              style={{
-                background: "gray",
-              }}
-            />
-          </div>
-        </div>
-        <div className="p-8 px-5 flex items-center justify-between ">
-          <div className="flex items-center gap-6">
-            <div className="h-[70px] w-[85px] rounded-xl bg-grayScale-100 overflow-hidden shadow-inner flex-shrink-0">
-              <img
-                src="https://images.unsplash.com/photo-1558403194-611308249627?auto=format&fit=crop&q=80&w=200"
-                alt="Banner"
-                className="w-full h-full object-cover opacity-80"
-              />
-            </div>
-            <div className="space-y-2">
-              <h4 className="text-[22px] font-bold text-grayScale-900 leading-tight">
-                {formData.title || "Business English 101: Communication"}
-              </h4>
-              <div className="flex items-center gap-6 text-[14px]">
-                <span className="text-grayScale-900 ">
-                  Program:{" "}
-                  <span className="text-brand-500 ">{formData.program}</span>
-                </span>
-                <span className="text-grayScale-900 ">
-                  Course:{" "}
-                  <span className="text-brand-500 ">{formData.course}</span>
-                </span>
-                <span className="text-grayScale-900 font-bold">
-                  Module:{" "}
-                  <span className="text-brand-500 font-extrabold">
-                    Module 101
-                  </span>
-                </span>
-              </div>
-            </div>
-          </div>
-          <div className="flex flex-col items-center gap-2">
-            <span className="text-[11px] text-left font-medium text-grayScale-900 ">
-              Persona
-            </span>
-            <div className="flex items-center gap-2 bg-[#FAF5FF] py-1 pl-2.5 pr-4 rounded-full border border-brand-100/30">
-              <Avatar className="h-8 w-8 border-2 border-white shadow-sm font-bold">
-                <AvatarImage src={persona?.avatar} />
-                <AvatarFallback>P</AvatarFallback>
-              </Avatar>
-              <span className="text-[14px]  text-brand-500 capitalize">
-                {persona?.name || "Alex Johnson"}
-              </span>
-            </div>
-          </div>
-        </div>
-      </Card>
-
-      {/* 2. Tips Section (Image 1436.1) */}
-      <div className="space-y-4 px-2">
-        <div className="flex items-center gap-2">
-          <label className="text-[12px] font-bold text-grayScale-900 uppercase tracking-widest leading-none">
-            TIPS / GUIDANCE
-          </label>
-          <Info className="h-4 w-4 text-brand-500" />
-        </div>
-        <div className="px-5 pt-2 pb-8 bg-white border border-[#E2E8F0] shadow-sm rounded-xl">
-          <p className="text-[14px] text-grayScale-500 font-medium leading-relaxed">
-            {formData.tips ||
-              "Focus on using the present perfect continuous tense to describe an action that started in the past and continues now."}
-          </p>
-        </div>
-      </div>
-
-      {isModuleContext ? (
-        /* 3. Split Questions & Answers Layout (Image 1413.1) */
-        <div className="grid grid-cols-1 md:grid-cols-2 bg-white rounded-[12px] border border-grayScale-50 shadow-sm overflow-hidden min-h-[600px]">
-          {/* Left Column: Questions */}
-          <div className="border-r border-grayScale-200 flex flex-col">
-            <div className="p-4  border-b border-grayScale-50 flex items-center gap-3 bg-white">
-              <h3 className="text-[16px] font-extrabold text-[#0F172A]">
-                Questions
-              </h3>
-              <span className="h-6 w-6 rounded-full bg-grayScale-100 flex items-center justify-center text-[12px] font-extrabold text-grayScale-500">
-                {formData.questions.length}
-              </span>
-            </div>
-            <div className="p-4 space-y-14">
-              {formData.questions.map((q: any, i: number) => (
-                <div key={q.id} className="relative pl-12">
-                  <span className="absolute left-0 top-0 text-[18px] font-bold text-grayScale-400 tracking-tighter opacity-70">
-                    {(i + 1).toString().padStart(2, "0")}
-                  </span>
-                  <div className="space-y-8">
-                    <div className="space-y-4">
-                      <span className="text-[11px] font-extrabold text-grayScale-600 uppercase tracking-[0.1em] block">
-                        TEXT PROMPT
-                      </span>
-                      <p className="text-[16px] font-medium text-grayScale-600 leading-relaxed max-w-[90%]">
-                        {q.text}
-                      </p>
-                    </div>
-                    <div className="space-y-4">
-                      <span className="text-[11px] font-extrabold text-grayScale-300 uppercase tracking-[0.1em] block">
-                        VOICE PROMPT
-                      </span>
-                      <VoicePrompt
-                        filename={q.voicePrompt}
-                        className="bg-[#FAF5FF]/60 border-[#F3E8FF] h-[72px]"
-                      />
-                    </div>
-                  </div>
-                </div>
-              ))}
-            </div>
-          </div>
-
-          {/* Right Column: Answers */}
-          <div className="flex flex-col">
-            <div className="p-4 border-b border-grayScale-50 flex items-center justify-between bg-white">
-              <div className="flex items-center gap-3">
-                <h3 className="text-[16px] font-extrabold ">Answers</h3>
-                <span className="h-6 w-6 rounded-full bg-grayScale-100  flex items-center justify-center text-[12px] font-extrabold text-grayScale-500">
-                  {formData.questions.length}
-                </span>
-              </div>
-              <button className="flex items-center gap-2 text-brand-500 font-bold text-[15px] hover:opacity-80 transition-opacity">
-                <Edit2 className="h-3 w-3" />
-                Edit
-              </button>
-            </div>
-            <div className="p-4 space-y-14">
-              {formData.questions.map((q: any, i: number) => (
-                <div key={q.id + "_ans"} className="relative pl-12">
-                  <span className="absolute left-0 top-0 text-[18px] font-bold text-grayScale-400 tracking-tighter opacity-70">
-                    {(i + 1).toString().padStart(2, "0")}
-                  </span>
-                  <div className="space-y-4">
-                    <span className="text-[11px] font-extrabold text-grayScale-600 uppercase tracking-[0.1em] block">
-                      VOICE PROMPT
-                    </span>
-                    <VoicePrompt
-                      filename={q.sampleAnswer}
-                      className="bg-[#FAF5FF]/60 border-[#F3E8FF] h-[60px]"
-                    />
-                  </div>
-                </div>
-              ))}
-            </div>
-          </div>
-        </div>
-      ) : (
-        /* Original Non-Module View */
-        <div className="space-y-6">
-          {formData.questions.map((q: any, i: number) => (
-            <ReviewItem key={q.id} q={q} index={i} />
-          ))}
-        </div>
-      )}
-
-      {/* Action Footer */}
-      <div className="flex items-center justify-between pt-12">
-        <Button
-          onClick={prevStep}
-          variant="outline"
-          className="h-10 px-10 rounded-[6px] border-grayScale-200 font-bold text-grayScale-600 bg-white shadow-sm hover:bg-grayScale-50 transition-all text-sm"
-        >
-          Back
-        </Button>
-        <div className="flex gap-4">
-          <Button
-            variant="outline"
-            className="h-10 px-8 rounded-[6px] border-grayScale-100 font-bold text-grayScale-600 bg-white shadow-sm hover:bg-grayScale-50 transition-all text-sm"
-          >
-            Save as Draft
-          </Button>
-          <Button
-            onClick={() => setIsPublished(true)}
-            className="h-10 px-10 rounded-[6px] bg-brand-500 font-bold hover:bg-brand-600 shadow-xl shadow-brand-500/20 gap-3 active:scale-95 transition-all text-white text-sm"
-          >
-            <Rocket className="h-4 w-4" />
-            Publish Now
-          </Button>
-        </div>
-      </div>
-    </div>
-  );
-}
-
-function ReviewItem({ q, index }: { q: any; index: number }) {
-  return (
-    <Card className="overflow-hidden border-grayScale-50 shadow-soft rounded-2xl bg-white relative">
-      <div className="absolute left-0 top-0 bottom-0 w-[5px] bg-brand-500" />
-      <div className="px-5 pb-7 pt-2 space-y-6">
-        <div className="flex items-center justify-between border-b border-grayScale-50 pb-4 mb-4">
-          <div className="flex items-center gap-3">
-            <GripVertical className="h-5 w-5 text-brand-500 cursor-grab" />
-            <span className="font-bold text-grayScale-500 text-base">
-              Question {index + 1}
-            </span>
-          </div>
-          <Button
-            variant="ghost"
-            size="icon"
-            className="text-brand-500 hover:bg-brand-50 rounded-lg"
-          >
-            <Trash2 className="h-4 w-4" />
-          </Button>
-        </div>
-        <div className="grid grid-cols-1 md:grid-cols-12 gap-8">
-          <div className="md:col-span-8 space-y-3">
-            <label className="text-[10px] font-bold text-grayScale-700 uppercase tracking-widest">
-              QUESTION PROMPT
-            </label>
-            <Input
-              value={q.text}
-              readOnly
-              className="h-16 rounded-xl border-grayScale-200 font-medium px-6 text-base placeholder:text-grayScale-400 bg-white text-grayScale-700"
-              placeholder="e.g. How long have you been studying English?"
-            />
-          </div>
-          <div className="md:col-span-4 space-y-3">
-            <label className="text-[10px] font-bold text-grayScale-700 uppercase tracking-widest">
-              VOICE PROMPT
-            </label>
-            <VoicePrompt
-              src={q.voicePrompt}
-              filename={q.voicePrompt}
-              onRemove={() => {}}
-            />
-          </div>
-        </div>
-        <div className="md:w-1/3 space-y-3">
-          <label className="text-[10px] font-bold text-grayScale-700 uppercase tracking-widest">
-            SAMPLE ANSWER PROMPT
-          </label>
-          <VoicePrompt
-            src={q.sampleAnswer}
-            filename={q.sampleAnswer}
-            onRemove={() => {}}
-          />
-        </div>
-      </div>
-    </Card>
-  );
-}

src/pages/content-management/components/practice-steps/ScenarioStep.tsx

@@ -1,118 +0,0 @@
-import { Upload, ArrowRight } from "lucide-react";
-import { Button } from "../../../../components/ui/button";
-import { Card } from "../../../../components/ui/card";
-import { Input } from "../../../../components/ui/input";
-import { Textarea } from "../../../../components/ui/textarea";
-
-interface ScenarioStepProps {
-  formData: any;
-  setFormData: (data: any) => void;
-  nextStep: () => void;
-  prevStep: () => void;
-}
-
-export function ScenarioStep({
-  formData,
-  setFormData,
-  nextStep,
-  prevStep,
-}: ScenarioStepProps) {
-  return (
-    <div className="space-y-6">
-      <div className="space-y-1 px-2">
-        <h2 className="text-2xl font-extrabold text-grayScale-700">
-          Define Scenario Details
-        </h2>
-        <p className="text-grayScale-400 text-lg">
-          Set the scene and context for this English practice session.
-        </p>
-      </div>
-      <Card className="p-8 space-y-6 border-grayScale-200 rounded-2xl bg-white">
-        <div className="space-y-1">
-          <label className="text-sm text-grayScale-700">
-            Practice Banner Image
-          </label>
-          <p className="text-xs pb-2 text-grayScale-400">
-            This image will appear as the background for the scenario.
-          </p>
-          <div className="mt-4 flex flex-col items-center justify-center rounded-2xl border-2 border-dashed border-grayScale-200 bg-[#F8F9FA] p-12 hover:bg-grayScale-50 transition-all">
-            <div className="mb-4 rounded-xl border border-grayScale-100 bg-white p-3 text-brand-500 shadow-sm">
-              <Upload className="h-6 w-6" />
-            </div>
-            <p className="text-sm">
-              <span className="text-grayScale-700">
-                Click to upload or drag and drop
-              </span>
-            </p>
-            <p className="mt-1 text-xs text-grayScale-400 uppercase tracking-wide ">
-              SVG, PNG, JPG (MAX 5MB)
-            </p>
-            <Button
-              variant="outline"
-              className="mt-6 h-10 rounded-[6px] border-grayScale-200 bg-white px-8 font-bold text-brand-500 shadow-sm hover:bg-grayScale-50"
-            >
-              Browse Files
-            </Button>
-          </div>
-        </div>
-      </Card>
-      <Card className="p-8 space-y-6 border-grayScale-200 rounded-2xl bg-white">
-        <div className="space-y-2">
-          <label className="text-sm font-medium text-grayScale-700">
-            Practice Title <span className="text-red-500">*</span>
-          </label>
-          <Input
-            placeholder="e.g., Ordering Coffee at a Cafe"
-            className="h-12 rounded-xl border-grayScale-200 focus:border-brand-500  placeholder:text-grayScale-500 bg-white"
-            value={formData.title}
-            onChange={(e) =>
-              setFormData({ ...formData, title: e.target.value })
-            }
-          />
-        </div>
-        <div className="space-y-2">
-          <label className="text-sm font-medium text-grayScale-700">
-            Scenario Description <span className="text-red-500">*</span>
-          </label>
-          <div className="relative">
-            <Textarea
-              placeholder="Describe the setting..."
-              className="min-h-[160px] rounded-xl resize-none p-4 border-grayScale-200 focus:border-brand-500 leading-relaxed placeholder:text-grayScale-500 bg-white"
-              maxLength={1000}
-              value={formData.description}
-              onChange={(e) =>
-                setFormData({
-                  ...formData,
-                  description: e.target.value,
-                })
-              }
-            />
-            <div className="absolute bottom-4 right-4 text-xs font-bold text-grayScale-500">
-              {formData.description.length} / 1000
-            </div>
-          </div>
-          <span className="text-xs  text-grayScale-500">
-            Provide context for the AI and the student. Be specific about the
-            location and the goal.
-          </span>
-        </div>
-      </Card>
-      <div className="flex items-center justify-between pt-4">
-        <Button
-          onClick={prevStep}
-          variant="outline"
-          className="h-10 w-20 rounded-[6px] border-grayScale-200 text-grayScale-600 shadow-sm"
-        >
-          Back
-        </Button>
-        <Button
-          onClick={nextStep}
-          disabled={!formData.title || !formData.description}
-          className="h-10 rounded-[6px] bg-brand-500 px-8 "
-        >
-          Next: Persona <ArrowRight className="ml-2 h-4 w-4" />
-        </Button>
-      </div>
-    </div>
-  );
-}

src/pages/content-management/components/practice-steps/VoicePrompt.tsx

@@ -1,182 +0,0 @@
-import { useEffect, useRef, useState } from "react";
-import { Play, Pause, X } from "lucide-react";
-import { cn } from "../../../../lib/utils";
-
-interface VoicePromptProps {
-  /** Either a URL/path to the audio file, or a filename string (for display-only mode) */
-  src?: string;
-  filename: string;
-  onRemove?: () => void;
-  className?: string;
-}
-
-const BAR_COUNT = 24;
-
-export function VoicePrompt({
-  src,
-  filename,
-  onRemove,
-  className,
-}: VoicePromptProps) {
-  const [bars, setBars] = useState<number[]>([]);
-  const [isPlaying, setIsPlaying] = useState(false);
-  const [progress, setProgress] = useState(0); // 0–1
-
-  const audioRef = useRef<HTMLAudioElement | null>(null);
-  const rafRef = useRef<number | null>(null);
-
-  // ─── Decode audio and build waveform bars ───────────────────────────────────
-  useEffect(() => {
-    if (!src) {
-      // No real audio — generate plausible static bars
-      setBars(generateFakeBars());
-      return;
-    }
-
-    let cancelled = false;
-    const audioCtx = new AudioContext();
-
-    fetch(src)
-      .then((r) => r.arrayBuffer())
-      .then((buf) => audioCtx.decodeAudioData(buf))
-      .then((decoded) => {
-        if (cancelled) return;
-        const raw = decoded.getChannelData(0);
-        const blockSize = Math.floor(raw.length / BAR_COUNT);
-        const barsData = Array.from({ length: BAR_COUNT }, (_, i) => {
-          let sum = 0;
-          for (let j = 0; j < blockSize; j++) {
-            sum += Math.abs(raw[i * blockSize + j]);
-          }
-          return sum / blockSize;
-        });
-        // Normalize to 0–1
-        const max = Math.max(...barsData, 0.001);
-        setBars(barsData.map((v) => v / max));
-      })
-      .catch(() => {
-        if (!cancelled) setBars(generateFakeBars());
-      })
-      .finally(() => audioCtx.close());
-
-    return () => {
-      cancelled = true;
-    };
-  }, [src]);
-
-  // ─── Sync progress while playing ────────────────────────────────────────────
-  const startProgressLoop = () => {
-    const tick = () => {
-      const el = audioRef.current;
-      if (!el) return;
-      setProgress(el.currentTime / (el.duration || 1));
-      rafRef.current = requestAnimationFrame(tick);
-    };
-    rafRef.current = requestAnimationFrame(tick);
-  };
-
-  const stopProgressLoop = () => {
-    if (rafRef.current !== null) {
-      cancelAnimationFrame(rafRef.current);
-      rafRef.current = null;
-    }
-  };
-
-  // ─── Play / Pause ────────────────────────────────────────────────────────────
-  const handlePlayPause = () => {
-    if (!src) return;
-
-    if (!audioRef.current) {
-      audioRef.current = new Audio(src);
-      audioRef.current.onended = () => {
-        setIsPlaying(false);
-        setProgress(0);
-        stopProgressLoop();
-      };
-    }
-
-    if (isPlaying) {
-      audioRef.current.pause();
-      stopProgressLoop();
-      setIsPlaying(false);
-    } else {
-      audioRef.current.play().then(() => {
-        setIsPlaying(true);
-        startProgressLoop();
-      });
-    }
-  };
-
-  // ─── Cleanup on unmount ──────────────────────────────────────────────────────
-  useEffect(() => {
-    return () => {
-      stopProgressLoop();
-      audioRef.current?.pause();
-    };
-  }, []);
-
-  const playedBars = Math.round(progress * BAR_COUNT);
-
-  return (
-    <div
-      className={cn(
-        "flex items-center gap-4 px-4 py-3 bg-[#F9F0FB] rounded-6px border border-brand-100 min-h-[60px]",
-        className,
-      )}
-    >
-      {/* Play / Pause button */}
-      <button
-        onClick={handlePlayPause}
-        className="h-8 w-8 flex-shrink-0 rounded-full bg-brand-500 flex items-center justify-center text-white shadow-md hover:bg-brand-600 transition-colors"
-      >
-        {isPlaying ? (
-          <Pause className="h-3 w-3 fill-current" />
-        ) : (
-          <Play className="h-3 w-3 fill-current ml-0.5" />
-        )}
-      </button>
-
-      {/* Waveform + filename */}
-      <div className="flex-1 min-w-0 flex flex-col gap-1">
-        {/* Bars — centered vertically, grow up and down */}
-        <div className="flex items-center gap-[3.5px] h-6 overflow-hidden">
-          {(bars.length ? bars : generateFakeBars()).map((v, i) => (
-            <div
-              key={i}
-              className="w-[4px] rounded-full flex-shrink-0"
-              style={{
-                height: `${Math.max(v * 100, 14)}%`,
-                backgroundColor: i < playedBars ? "#9E2891" : "#D5C5DC",
-              }}
-            />
-          ))}
-        </div>
-        {/* Filename */}
-        <p className="text-[11px] font-semibold text-brand-500 truncate">
-          {filename}
-        </p>
-      </div>
-
-      {/* Remove button */}
-      {onRemove && (
-        <button
-          onClick={onRemove}
-          className="flex-shrink-0 text-brand-500 hover:text-brand-700 transition-colors p-1"
-          aria-label="Remove"
-        >
-          <X className="h-5 w-5" />
-        </button>
-      )}
-    </div>
-  );
-}
-
-// ─── Helpers ─────────────────────────────────────────────────────────────────
-function generateFakeBars(): number[] {
-  // Realistic-looking static waveform (peaks in middle, quieter at edges)
-  return Array.from({ length: BAR_COUNT }, (_, i) => {
-    const center = BAR_COUNT / 2;
-    const envelope = 1 - Math.abs(i - center) / center;
-    return Math.max(0.1, envelope * (0.4 + Math.random() * 0.6));
-  });
-}

src/pages/content-management/components/practice-steps/constants.ts

@@ -1,44 +0,0 @@
-export const PERSONAS = [
-  {
-    id: "dawit",
-    name: "Dawit",
-    avatar: "https://api.dicebear.com/7.x/avataaars/svg?seed=Dawit",
-  },
-  {
-    id: "mahlet",
-    name: "Mahlet",
-    avatar: "https://api.dicebear.com/7.x/avataaars/svg?seed=Mahlet",
-  },
-  {
-    id: "amanuel",
-    name: "Amanuel",
-    avatar: "https://api.dicebear.com/7.x/avataaars/svg?seed=Amanuel",
-  },
-  {
-    id: "bethel",
-    name: "Bethel",
-    avatar: "https://api.dicebear.com/7.x/avataaars/svg?seed=Bethel",
-  },
-  {
-    id: "liya",
-    name: "Liya",
-    avatar: "https://api.dicebear.com/7.x/avataaars/svg?seed=Liya",
-  },
-  {
-    id: "aseffa",
-    name: "Aseffa",
-    avatar: "https://api.dicebear.com/7.x/avataaars/svg?seed=Aseffa",
-  },
-  {
-    id: "hana",
-    name: "Hana",
-    avatar: "https://api.dicebear.com/7.x/avataaars/svg?seed=Hana",
-  },
-  {
-    id: "nahom",
-    name: "Nahom",
-    avatar: "https://api.dicebear.com/7.x/avataaars/svg?seed=Nahom",
-  },
-];
-
-export const STEPS = ["Context", "Scenario", "Persona", "Questions", "Review"];

src/pages/content-management/components/question-type-steps/QuestionTypeBasicInfoStep.tsx

@@ -1,150 +0,0 @@
-import { useState } from "react";
-import { X, ArrowRight } from "lucide-react";
-import { Button } from "../../../../components/ui/button";
-import { Card } from "../../../../components/ui/card";
-import { Select } from "../../../../components/ui/select";
-import { Badge } from "../../../../components/ui/badge";
-
-interface QuestionTypeBasicInfoStepProps {
-  onNext: () => void;
-}
-
-export function QuestionTypeBasicInfoStep({
-  onNext,
-}: QuestionTypeBasicInfoStepProps) {
-  const [selectedChips, setSelectedChips] = useState([
-    "Multiple Choice",
-    "Sentence Completion",
-  ]);
-  const suggestions = ["Matching Headings", "True/False/NG"];
-
-  const removeChip = (chip: string) => {
-    setSelectedChips(selectedChips.filter((c) => c !== chip));
-  };
-
-  const addChip = (chip: string) => {
-    if (!selectedChips.includes(chip)) {
-      setSelectedChips([...selectedChips, chip]);
-    }
-  };
-
-  return (
-    <div className="space-y-8 pb-32">
-      <Card className="max-w-4xl mx-auto overflow-hidden border-grayScale-100 shadow-sm rounded-2xl bg-white">
-        <div className="p-10 border-b border-grayScale-200">
-          <h2 className="text-[20px] font-medium text-grayScale-900">
-            STEP 1: Basic Info
-          </h2>
-          <p className="text-grayScale-500 font-medium mt-1">
-            Define what this question type is and where it applies.
-          </p>
-        </div>
-
-        <div className="p-10 space-y-10">
-          {/* Top Row: Course Type & Skill Category */}
-          <div className="grid grid-cols-2 gap-10">
-            <div className="space-y-3">
-              <label className="text-[14px] font-medium text-grayScale-700 flex items-center gap-1">
-                Course Type <span className="text-red-500">*</span>
-              </label>
-              <Select className="h-12 rounded-[12px] border-grayScale-300 bg-[#F8FAFC] font-medium text-grayScale-900 transition-all ">
-                <option>Select an exam type</option>
-                <option>IELTS</option>
-                <option>Duolingo</option>
-                <option>TOEFL</option>
-              </Select>
-              <p className="text-grayScale-400 text-[13px] font-medium leading-relaxed">
-                The core framework for the practice test.
-              </p>
-            </div>
-
-            <div className="space-y-3">
-              <label className="text-[14px] font-medium text-grayScale-700 flex items-center gap-1">
-                Skill Category <span className="text-red-500">*</span>
-              </label>
-              <Select className="h-12 rounded-[12px] border-grayScale-300 bg-[#F8FAFC] font-medium text-grayScale-900 transition-all ">
-                <option>Select a skill</option>
-                <option>Speaking</option>
-                <option>Writing</option>
-                <option>Listening</option>
-                <option>Reading</option>
-              </Select>
-            </div>
-          </div>
-
-          {/* Question Type */}
-          <div className="space-y-3">
-            <label className="text-[14px] font-bold text-grayScale-700 flex items-center gap-1">
-              Question Type <span className="text-red-500">*</span>
-            </label>
-            <Select className="h-12 rounded-[12px] border-grayScale-300 bg-[#F8FAFC] font-medium text-grayScale-900 transition-all ">
-              <option>Single Format</option>
-              <option>Mixed Format</option>
-            </Select>
-          </div>
-
-          {/* Question Types Chip Input */}
-          <div className="space-y-3">
-            <label className="text-[14px] font-bold text-grayScale-700 flex items-center gap-1">
-              Question Types <span className="text-red-500">*</span>
-            </label>
-            <div className="min-h-[56px] p-3 flex flex-wrap gap-2.5 rounded-[12px] border border-grayScale-300 bg-[#F8FAFC]">
-              {selectedChips.map((chip) => (
-                <Badge
-                  key={chip}
-                  className="bg-[#9E28911A] text-[#9E2891] border-[#9E289133] px-2 py-0 rounded-full text-[13px] font-medium flex items-center gap-2"
-                >
-                  {chip}
-                  <button
-                    onClick={() => removeChip(chip)}
-                    className="hover:text-red-500 transition-colors"
-                  >
-                    <X className="h-3.5 w-3.5" />
-                  </button>
-                </Badge>
-              ))}
-              <input
-                className="flex-1 min-w-[150px] bg-transparent border-none focus:ring-0 text-[14px] font-medium text-grayScale-900 px-3 placeholder:text-grayScale-400"
-                placeholder="Add question types..."
-              />
-            </div>
-
-            <div className="flex items-center gap-3 pt-1">
-              <span className="text-[13px] font-medium text-grayScale-500">
-                Suggestions:
-              </span>
-              <div className="flex items-center gap-2">
-                {suggestions.map((s) => (
-                  <button
-                    key={s}
-                    onClick={() => addChip(s)}
-                    className="px-3 py-1.5 rounded-[6px] border border-grayScale-300 text-[13px] font-medium text-grayScale-600 hover:bg-grayScale-50 hover:text-[#9E2891] hover:border-[#9E2891]/20 transition-all"
-                  >
-                    {s}
-                  </button>
-                ))}
-              </div>
-            </div>
-          </div>
-        </div>
-
-        {/* Footer */}
-        <div className="px-4 py-4 border border-grayScale-200 flex items-center justify-between bg-[#F8FAFC]">
-          <Button
-            variant="outline"
-            className="h-10 px-6 rounded-[6px] border-none shadow-none text-grayScale-600 font-bold hover:bg-grayScale-100"
-          >
-            Cancel
-          </Button>
-          <Button
-            onClick={onNext}
-            className="h-10 px-10 rounded-[6px] bg-[#9E2891] font-medium text-white shadow-lg shadow-brand-500/10 hover:bg-[#8A237E] transition-all flex items-center gap-3"
-          >
-            Next: Structure
-            <ArrowRight className="h-5 w-5" />
-          </Button>
-        </div>
-      </Card>
-    </div>
-  );
-}

src/pages/content-management/components/video-steps/ReviewPublishStep.tsx

@@ -1,249 +0,0 @@
-import { useEffect, useMemo, useState } from "react";
-import { Rocket, Edit2, Link2, Video } from "lucide-react";
-import { Button } from "../../../../components/ui/button";
-import { toast } from "sonner";
-import type { AddLessonFormData } from "../../AddVideoFlow";
-import {
-  applyShortPreviewToEmbedUrl,
-  DEFAULT_PREVIEW_MAX_SECONDS,
-  formatPreviewLength,
-  getVideoPreview,
-  resolveThumbnailForPreview,
-} from "../../../../lib/videoPreview";
-import { PreviewLimitedFileVideo } from "../PreviewLimitedFileVideo";
-
-interface ReviewPublishStepProps {
-  formData: AddLessonFormData;
-  prevStep: () => void;
-  onPublish: () => void;
-  publishing: boolean;
-}
-
-function truncate(s: string, max: number): string {
-  if (s.length <= max) return s;
-  return `${s.slice(0, max)}…`;
-}
-
-export function ReviewPublishStep({
-  formData,
-  prevStep,
-  onPublish,
-  publishing,
-}: ReviewPublishStepProps) {
-  const [thumbBroken, setThumbBroken] = useState(false);
-  const videoPreview = useMemo(
-    () => getVideoPreview(formData.videoUrl),
-    [formData.videoUrl],
-  );
-  const limitedEmbedSrc = useMemo(() => {
-    if (videoPreview.kind !== "iframe") return null;
-    return applyShortPreviewToEmbedUrl(
-      videoPreview.src,
-      videoPreview.label,
-      DEFAULT_PREVIEW_MAX_SECONDS,
-    );
-  }, [videoPreview]);
-  const previewLengthLabel = formatPreviewLength(DEFAULT_PREVIEW_MAX_SECONDS);
-  const thumbSrc = useMemo(
-    () => resolveThumbnailForPreview(formData.thumbnailUrl),
-    [formData.thumbnailUrl],
-  );
-
-  useEffect(() => {
-    setThumbBroken(false);
-  }, [thumbSrc]);
-
-  return (
-    <div className="space-y-6 animate-in fade-in slide-in-from-bottom-4 duration-500 pb-20">
-      <div className="bg-white rounded-[16px] border border-grayScale-50 shadow-sm overflow-hidden">
-        <div className="px-8 py-5 border-b border-grayScale-50 flex flex-col gap-1 sm:flex-row sm:items-end sm:justify-between bg-white">
-          <h3 className="text-[17px] font-bold text-grayScale-900">
-            Media preview
-          </h3>
-          <p className="text-xs font-medium text-grayScale-500">
-            Video: short clip (first {previewLengthLabel} only)
-          </p>
-        </div>
-        <div className="p-8">
-          <div className="flex flex-col gap-10 xl:flex-row xl:items-start xl:gap-10">
-            {/* Video preview */}
-            <div className="min-w-0 flex-1 space-y-3">
-              <span className="text-[11px] font-bold text-grayScale-500 uppercase tracking-widest block">
-                Video
-              </span>
-              {formData.videoUrl ? (
-                <div className="space-y-3">
-                  {videoPreview.kind === "iframe" && limitedEmbedSrc ? (
-                    <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-black shadow-sm">
-                      <div className="relative aspect-video w-full max-w-4xl">
-                        <iframe
-                          key={limitedEmbedSrc}
-                          src={limitedEmbedSrc}
-                          title={`${videoPreview.label} lesson preview`}
-                          className="absolute inset-0 h-full w-full"
-                          allow="autoplay; fullscreen; picture-in-picture"
-                          allowFullScreen
-                        />
-                        <div className="pointer-events-none absolute bottom-0 left-0 right-0 z-10 bg-gradient-to-t from-black/90 via-black/50 to-transparent px-3 py-2.5 text-center text-[11px] font-semibold text-white/95">
-                          Short clip · max {previewLengthLabel}
-                        </div>
-                      </div>
-                    </div>
-                  ) : videoPreview.kind === "video" ? (
-                    <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-black shadow-sm">
-                      <PreviewLimitedFileVideo
-                        src={videoPreview.src}
-                        maxSeconds={DEFAULT_PREVIEW_MAX_SECONDS}
-                      />
-                    </div>
-                  ) : (
-                    <div className="flex min-h-[200px] flex-col items-center justify-center gap-2 rounded-xl border-2 border-dashed border-grayScale-200 bg-grayScale-50/80 px-6 py-10 text-center">
-                      <Video className="h-10 w-10 text-grayScale-300" />
-                      <p className="text-sm font-medium text-grayScale-600">
-                        No inline preview for this URL
-                      </p>
-                      <p className="text-xs text-grayScale-500 max-w-md">
-                        Use a Vimeo, YouTube, or direct link to a video file
-                        (MP4, WebM, …) to see a player here. The URL below will
-                        still be saved.
-                      </p>
-                    </div>
-                  )}
-                  <div className="flex items-start gap-2 text-[13px] text-grayScale-600 break-all">
-                    <Link2 className="h-3.5 w-3.5 mt-0.5 flex-shrink-0 text-grayScale-400" />
-                    {truncate(formData.videoUrl, 220)}
-                  </div>
-                </div>
-              ) : (
-                <p className="text-grayScale-400 text-sm">—</p>
-              )}
-            </div>
-
-            {/* Thumbnail preview */}
-            <div className="w-full shrink-0 space-y-3 xl:max-w-[360px]">
-              <span className="text-[11px] font-bold text-grayScale-500 uppercase tracking-widest block">
-                Thumbnail
-              </span>
-              {formData.thumbnailUrl && thumbSrc ? (
-                <div className="space-y-3">
-                  <div className="overflow-hidden rounded-xl border border-grayScale-200 bg-grayScale-100 shadow-sm">
-                    <div className="relative aspect-video w-full max-w-md">
-                      {!thumbBroken ? (
-                        <img
-                          src={thumbSrc}
-                          alt=""
-                          className="absolute inset-0 h-full w-full object-cover"
-                          onError={() => setThumbBroken(true)}
-                        />
-                      ) : (
-                        <div className="flex aspect-video w-full max-w-md items-center justify-center bg-grayScale-200 px-4 text-center text-xs text-grayScale-500">
-                          Thumbnail could not be loaded. URL will still be
-                          saved.
-                        </div>
-                      )}
-                    </div>
-                  </div>
-                  <p className="text-[12px] text-grayScale-500 break-all">
-                    {truncate(formData.thumbnailUrl, 160)}
-                  </p>
-                </div>
-              ) : (
-                <p className="text-grayScale-400 text-sm">—</p>
-              )}
-            </div>
-          </div>
-        </div>
-      </div>
-
-      <div className="bg-white rounded-[16px] border border-grayScale-50 shadow-sm overflow-hidden">
-        <div className="px-8 py-5 border-b border-grayScale-50 flex items-center justify-between bg-white">
-          <h3 className="text-[16px] font-bold text-grayScale-900">
-            Content details
-          </h3>
-          <button
-            type="button"
-            onClick={prevStep}
-            className="flex items-center gap-2 text-brand-500 font-bold text-sm hover:opacity-80 transition-opacity"
-          >
-            <Edit2 className="h-3 w-3" />
-            Edit
-          </button>
-        </div>
-
-        <div className="p-8 space-y-10">
-          <div className="space-y-2">
-            <span className="text-[11px] font-bold text-grayScale-500 uppercase tracking-widest block">
-              Title
-            </span>
-            <p className="text-[15px] font-medium text-grayScale-900">
-              {formData.title || "—"}
-            </p>
-          </div>
-
-          <div className="space-y-3">
-            <span className="text-[11px] font-bold text-grayScale-500 uppercase tracking-widest block">
-              Description
-            </span>
-            <div
-              className="text-[14px] text-grayScale-600 leading-relaxed max-w-4xl"
-              dangerouslySetInnerHTML={{
-                __html:
-                  formData.description || "<p class='text-grayScale-400'>—</p>",
-              }}
-            />
-          </div>
-        </div>
-
-        <div className="relative">
-          <div
-            className="absolute inset-0 flex items-center"
-            aria-hidden="true"
-          >
-            <div className="w-full border-t border-grayScale-200" />
-          </div>
-          <div className="relative flex justify-center">
-            <div
-              className="h-[0.5px] w-full opacity-20 rounded-full"
-              style={{ background: "gray" }}
-            />
-          </div>
-        </div>
-
-        <div className="px-8 py-6 border-t border-grayScale-50 flex items-center justify-between bg-white">
-          <Button
-            type="button"
-            variant="outline"
-            onClick={prevStep}
-            disabled={publishing}
-            className="h-10 px-8 rounded-xl border-grayScale-200 font-bold text-grayScale-600 hover:bg-grayScale-50 transition-all shadow-sm"
-          >
-            Back
-          </Button>
-
-          <div className="flex items-center gap-4">
-            <Button
-              type="button"
-              variant="outline"
-              className="h-12 px-8 rounded-[6px] border-grayScale-100 font-bold text-grayScale-600 hover:bg-grayScale-50 transition-all shadow-sm"
-              disabled={publishing}
-              onClick={() =>
-                toast.info("Drafts are not supported yet. Use Create lesson.")
-              }
-            >
-              Save as draft
-            </Button>
-            <Button
-              type="button"
-              onClick={onPublish}
-              disabled={publishing}
-              className="h-10 px-10 rounded-[6px] bg-brand-500 font-bold text-white  shadow-brand-500/20 transition-all flex items-center gap-2.5 disabled:opacity-60"
-            >
-              <Rocket className="h-4 w-4" />
-              {publishing ? "Creating…" : "Create lesson"}
-            </Button>
-          </div>
-        </div>
-      </div>
-    </div>
-  );
-}

src/pages/content-management/components/video-steps/VideoDetailStep.tsx

@@ -1,249 +0,0 @@
-import {
-  useRef,
-  useEffect,
-  type Dispatch,
-  type SetStateAction,
-} from "react";
-import { List, Link as LinkIcon, Lightbulb, ArrowRight } from "lucide-react";
-import { toast } from "sonner";
-import { Button } from "../../../../components/ui/button";
-import { Input } from "../../../../components/ui/input";
-import type { AddLessonFormData } from "../../AddVideoFlow";
-import { LessonMediaUploadField } from "../LessonMediaUploadField";
-
-function isDescriptionEmpty(raw: string): boolean {
-  if (!raw?.trim()) return true;
-  const t = raw.replace(/<[^>]+>/g, "").replace(/&nbsp;/g, " ").trim();
-  return t.length === 0;
-}
-
-interface VideoDetailStepProps {
-  formData: AddLessonFormData;
-  setFormData: Dispatch<SetStateAction<AddLessonFormData>>;
-  onContinue: () => void;
-}
-
-export function VideoDetailStep({
-  formData,
-  setFormData,
-  onContinue,
-}: VideoDetailStepProps) {
-  const editorRef = useRef<HTMLDivElement>(null);
-  const isInternalChange = useRef(false);
-
-  useEffect(() => {
-    if (editorRef.current && !isInternalChange.current) {
-      editorRef.current.innerHTML = formData.description || "";
-    }
-  }, []);
-
-  const handleCommand = (command: string, value?: string) => {
-    document.execCommand(command, false, value);
-    syncState();
-  };
-
-  const syncState = () => {
-    if (editorRef.current) {
-      isInternalChange.current = true;
-      setFormData((prev) => ({
-        ...prev,
-        description: editorRef.current!.innerHTML,
-      }));
-      setTimeout(() => {
-        isInternalChange.current = false;
-      }, 0);
-    }
-  };
-
-  const handleInput = () => {
-    syncState();
-  };
-
-  const handleContinue = () => {
-    if (editorRef.current) {
-      setFormData((prev) => ({
-        ...prev,
-        description: editorRef.current!.innerHTML,
-      }));
-    }
-    if (!formData.title.trim()) {
-      toast.error("Title is required");
-      return;
-    }
-    if (!formData.videoUrl.trim()) {
-      toast.error("Add a video URL or upload a video");
-      return;
-    }
-    if (!formData.thumbnailUrl.trim()) {
-      toast.error("Add a thumbnail or upload an image");
-      return;
-    }
-    const descHtml = editorRef.current?.innerHTML ?? formData.description;
-    if (isDescriptionEmpty(descHtml)) {
-      toast.error("Description is required");
-      return;
-    }
-    onContinue();
-  };
-
-  return (
-    <div className="animate-in fade-in slide-in-from-bottom-4 duration-700 max-w-[1200px] mx-auto pb-20">
-      <div className="bg-white rounded-[24px] border border-grayScale-50 p-10 shadow-sm space-y-8">
-        <div className="space-y-3">
-          <h3 className="text-[20px] font-bold text-grayScale-900 ml-1">
-            Video
-          </h3>
-          <p className="text-sm text-grayScale-500 ml-1 max-w-2xl">
-            Upload a file or paste a link (Vimeo, hosted file, etc.). Files are
-            sent to your storage via{" "}
-            <code className="rounded bg-grayScale-100 px-1 text-[11px]">
-              POST /files/upload
-            </code>
-            .
-          </p>
-          <LessonMediaUploadField
-            kind="video"
-            value={formData.videoUrl}
-            onChange={(v) =>
-              setFormData((prev) => ({ ...prev, videoUrl: v }))
-            }
-          />
-        </div>
-
-        <div className="relative">
-          <div
-            className="absolute inset-0 flex items-center"
-            aria-hidden="true"
-          >
-            <div className="w-full border-t border-grayScale-200" />
-          </div>
-          <div className="relative flex justify-center">
-            <div
-              className="h-[0.5px] w-full opacity-20 rounded-full"
-              style={{ background: "gray" }}
-            />
-          </div>
-        </div>
-
-        <div className="flex flex-col lg:flex-row gap-12 items-start">
-          <div className="flex-1 w-full space-y-10">
-            <div className="space-y-3">
-              <label className="text-[14px] font-medium text-grayScale-900 ml-1">
-                Lesson title
-              </label>
-              <Input
-                placeholder="e.g. Introduction to Past Tense"
-                className="h-12 rounded-xl border-grayScale-200 bg-white px-6 text-[15px] text-grayScale-800 placeholder:text-grayScale-500 focus:border-brand-500 font-medium transition-all shadow-sm"
-                value={formData.title}
-                onChange={(e) =>
-                  setFormData((prev) => ({ ...prev, title: e.target.value }))
-                }
-              />
-            </div>
-
-            <div className="space-y-3">
-              <label className="text-[14px] font-medium text-grayScale-900 ml-1">
-                Description
-              </label>
-              <div className="rounded-xl border border-grayScale-200 bg-white overflow-hidden flex flex-col min-h-[200px] shadow-sm focus-within:border-brand-200 transition-all">
-                <div className="flex items-center gap-1  bg-[#F8FAFC]">
-                  <div className="flex items-center gap-1 w-fit bg-transparent px-2 py-1 rounded-lg">
-                    <button
-                      type="button"
-                      onClick={() => handleCommand("bold")}
-                      className="h-9 w-9 flex items-center justify-center rounded-lg hover:bg-white hover:shadow-sm text-grayScale-900 transition-all font-serif font-bold text-[17px] pb-0.5 active:bg-grayScale-50"
-                    >
-                      B
-                    </button>
-                    <button
-                      type="button"
-                      onClick={() => handleCommand("italic")}
-                      className="h-9 w-9 flex items-center justify-center rounded-lg hover:bg-white hover:shadow-sm text-grayScale-900 transition-all font-serif italic text-[17px] pr-0.5 active:bg-grayScale-50"
-                    >
-                      I
-                    </button>
-                    <button
-                      type="button"
-                      onClick={() => handleCommand("insertUnorderedList")}
-                      className="h-9 w-9 flex items-center justify-center rounded-lg hover:bg-white hover:shadow-sm text-grayScale-900 transition-all active:bg-grayScale-50"
-                    >
-                      <List className="h-5 w-5" />
-                    </button>
-                    <button
-                      type="button"
-                      onClick={() => {
-                        const url = prompt("Enter URL:");
-                        if (url) handleCommand("createLink", url);
-                      }}
-                      className="h-9 w-9 flex items-center justify-center rounded-lg hover:bg-white hover:shadow-sm text-grayScale-900 transition-all active:bg-grayScale-50"
-                    >
-                      <LinkIcon className="h-4 w-4" />
-                    </button>
-                  </div>
-                </div>
-
-                <div className="relative p-6 flex-1">
-                  {isDescriptionEmpty(formData.description) && (
-                    <div className="absolute top-6 left-6 text-grayScale-300 font-medium text-[15px] pointer-events-none">
-                      What will students learn in this lesson?
-                    </div>
-                  )}
-                  <div
-                    ref={editorRef}
-                    contentEditable
-                    onInput={handleInput}
-                    className="w-full min-h-[140px] focus:outline-none text-[15px] text-grayScale-700 font-medium leading-relaxed prose prose-sm max-w-none"
-                  />
-                </div>
-              </div>
-            </div>
-          </div>
-
-          <div className="w-full lg:w-[360px] space-y-5">
-            <LessonMediaUploadField
-              kind="thumbnail"
-              value={formData.thumbnailUrl}
-              onChange={(v) =>
-                setFormData((prev) => ({ ...prev, thumbnailUrl: v }))
-              }
-            />
-            <div className="bg-brand-500/5 flex items-start gap-3 rounded-xl border border-[#F3E8FF] p-6 space-y-3">
-              <div className="flex items-center gap-3">
-                <div className="h-8 w-8 flex-shrink-0 flex items-center justify-center">
-                  <Lightbulb
-                    className="h-4 w-4 text-brand-50"
-                    fill="#A855F7"
-                  />
-                </div>
-              </div>
-              <div className="relative top-[-10px]">
-                <h3 className="text-[14px] font-bold text-grayScale-900">
-                  Pro tip
-                </h3>
-                <p className="text-[12px] text-grayScale-700 font-medium leading-relaxed">
-                  Use clear titles and a thumbnail that matches the lesson. The
-                  lesson is created with{" "}
-                  <code className="rounded bg-white/80 px-1 text-[10px]">
-                    POST /modules/:moduleId/lessons
-                  </code>{" "}
-                  when you publish.
-                </p>
-              </div>
-            </div>
-          </div>
-        </div>
-
-        <div className="pt-5 border-t border-grayScale-200 flex items-center justify-end">
-          <Button
-            type="button"
-            onClick={handleContinue}
-            className="h-10 px-10 rounded-[6px] bg-brand-500 font-bold text-white transition-all flex items-center gap-2 text-sm group active:scale-95"
-          >
-            Continue
-            <ArrowRight className="h-4 w-4" />
-          </Button>
-        </div>
-      </div>
-    </div>
-  );
-}

src/pages/issues/IssuesPage.tsx

@@ -95,13 +95,12 @@ function getStatusConfig(status: string): {
   }
 }
 
-function getIssueTypeConfig(type: string | null | undefined): {
+function getIssueTypeConfig(type: string): {
   label: string;
   classes: string;
   icon: typeof Bug;
 } {
-  const t = String(type ?? "").trim();
+  switch (type) {
-  switch (t) {
     case "bug":
       return {
         label: "Bug",
@@ -134,7 +133,7 @@ function getIssueTypeConfig(type: string | null | undefined): {
       };
     default:
       return {
-        label: t ? t.charAt(0).toUpperCase() + t.slice(1) : "Other",
+        label: type.charAt(0).toUpperCase() + type.slice(1),
         classes: "bg-grayScale-100 text-grayScale-600 border-grayScale-200",
         icon: HelpCircle,
       };
@@ -174,10 +173,8 @@ function getRelativeTime(dateStr: string): string {
   return formatDate(dateStr);
 }
 
-function formatRoleLabel(role: string | null | undefined): string {
+function formatRoleLabel(role: string): string {
-  const r = String(role ?? "").trim();
+  return role
-  if (!r) return "—";
-  return r
     .split("_")
     .map((w) => w.charAt(0).toUpperCase() + w.slice(1).toLowerCase())
     .join(" ");
@@ -224,9 +221,8 @@ export function IssuesPage() {
         offset: (page - 1) * pageSize,
       };
       const res = await getIssues(filters);
-      const payload = res.data?.data;
+      setIssues(res.data.data.issues);
-      setIssues(Array.isArray(payload?.issues) ? payload.issues : []);
+      setTotalCount(res.data.data.total_count);
-      setTotalCount(typeof payload?.total_count === "number" ? payload.total_count : 0);
     } catch (error) {
       console.error("Failed to fetch issues:", error);
       setIssues([]);
@@ -245,7 +241,7 @@ export function IssuesPage() {
     setDetailLoading(true);
     try {
       const res = await getIssueById(issueId);
-      setSelectedIssue(res.data?.data ?? null);
+      setSelectedIssue(res.data.data);
     } catch (error) {
       console.error("Failed to fetch issue detail:", error);
     } finally {
@@ -309,15 +305,16 @@ export function IssuesPage() {
   };
 
   // Client-side filtering (status, type, search)
-  const filteredIssues = (Array.isArray(issues) ? issues : []).filter((issue) => {
+  const filteredIssues = issues.filter((issue) => {
     if (statusFilter && issue.status !== statusFilter) return false;
     if (typeFilter && issue.issue_type !== typeFilter) return false;
     if (searchQuery) {
       const q = searchQuery.toLowerCase();
-      const subject = String(issue.subject ?? "").toLowerCase();
+      return (
-      const description = String(issue.description ?? "").toLowerCase();
+        issue.subject.toLowerCase().includes(q) ||
-      const issueType = String(issue.issue_type ?? "").toLowerCase();
+        issue.description.toLowerCase().includes(q) ||
-      return subject.includes(q) || description.includes(q) || issueType.includes(q);
+        issue.issue_type.toLowerCase().includes(q)
+      );
     }
     return true;
   });
@@ -540,10 +537,10 @@ export function IssuesPage() {
                         </div>
                         <div className="min-w-0">
                           <p className="text-sm font-medium text-grayScale-600 truncate">
-                            {issue.subject?.trim() ? issue.subject : "—"}
+                            {issue.subject}
                           </p>
                           <p className="text-xs text-grayScale-400 truncate mt-0.5">
-                            {issue.description?.trim() ? issue.description : "No description"}
+                            {issue.description}
                           </p>
                         </div>
                       </div>
@@ -575,9 +572,6 @@ export function IssuesPage() {
                               {getStatusConfig(s).label}
                             </option>
                           ))}
-                          {!STATUSES.includes(issue.status as (typeof STATUSES)[number]) && issue.status ? (
-                            <option value={issue.status}>{getStatusConfig(issue.status).label}</option>
-                          ) : null}
                         </select>
                         <ChevronDown className="absolute right-2 top-1/2 h-3 w-3 -translate-y-1/2 pointer-events-none opacity-50" />
                       </div>

src/pages/notifications/CreateNotificationPage.tsx

@@ -1,12 +1,11 @@
 import { useEffect, useMemo, useState } from "react"
 import { useNavigate } from "react-router-dom"
-import { Bell, Mail, MailOpen, Megaphone } from "lucide-react"
+import { Bell, Loader2, Mail, MailOpen, Megaphone } from "lucide-react"
 import { Card, CardContent } from "../../components/ui/card"
 import { Button } from "../../components/ui/button"
 import { Input } from "../../components/ui/input"
 import { Textarea } from "../../components/ui/textarea"
 import { FileUpload } from "../../components/ui/file-upload"
-import { SpinnerIcon } from "../../components/ui/spinner-icon"
 import { cn } from "../../lib/utils"
 import { getTeamMembers } from "../../api/team.api"
 import type { TeamMember } from "../../types/team.types"
@@ -283,7 +282,7 @@ export function CreateNotificationPage() {
               >
                 {sending ? (
                   <>
-                    <SpinnerIcon className="mr-2 h-3.5 w-3.5" alt="" />
+                    <Loader2 className="mr-2 h-3.5 w-3.5 animate-spin" />
                     Sending…
                   </>
                 ) : (
@@ -348,7 +347,7 @@ export function CreateNotificationPage() {
                 <div className="max-h-64 space-y-1.5 overflow-y-auto rounded-lg border border-grayScale-100 bg-grayScale-50/60 p-2">
                   {recipientsLoading && (
                     <div className="flex items-center justify-center py-6 text-xs text-grayScale-400">
-                      <SpinnerIcon className="mr-2 h-4 w-4" alt="" />
+                      <Loader2 className="mr-2 h-4 w-4 animate-spin" />
                       Loading users…
                     </div>
                   )}

src/pages/role-management/RolesListPage.tsx

@@ -1,18 +1,8 @@
-import { useCallback, useEffect, useMemo, useState } from "react"
+import { useEffect, useMemo, useState } from "react"
 import { useNavigate } from "react-router-dom"
 import {
-  Plus,
+  Plus, Search, Shield, ShieldCheck, ChevronLeft, ChevronRight,
-  Search,
+  AlertCircle, Eye, X, Pencil, Check,
-  Shield,
-  ShieldCheck,
-  ChevronLeft,
-  ChevronRight,
-  AlertCircle,
-  Eye,
-  X,
-  Pencil,
-  Check,
-  Trash2,
 } from "lucide-react"
 import { Button } from "../../components/ui/button"
 import { Card, CardContent } from "../../components/ui/card"
@@ -22,14 +12,7 @@ import { Textarea } from "../../components/ui/textarea"
 import {
   Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription,
 } from "../../components/ui/dialog"
-import {
+import { getRoles, getRoleDetail, getAllPermissions, setRolePermissions, updateRole } from "../../api/rbac.api"
-  getRoles,
-  getRoleDetail,
-  getAllPermissions,
-  setRolePermissions,
-  updateRole,
-  deleteRole,
-} from "../../api/rbac.api"
 import type { Role, RoleDetail, RolePermission } from "../../types/rbac.types"
 import { cn } from "../../lib/utils"
 import { toast } from "sonner"
@@ -53,11 +36,6 @@ export function RolesListPage() {
   const [detailOpen, setDetailOpen] = useState(false)
   const [detailLoading, setDetailLoading] = useState(false)
 
-  // Delete modal state
-  const [deleteDialogOpen, setDeleteDialogOpen] = useState(false)
-  const [roleToDelete, setRoleToDelete] = useState<Role | null>(null)
-  const [deleteLoading, setDeleteLoading] = useState(false)
-
   // Role info editing state
   const [editingRole, setEditingRole] = useState(false)
   const [editName, setEditName] = useState("")
@@ -81,28 +59,27 @@ export function RolesListPage() {
     return () => clearTimeout(timer)
   }, [query])
 
-  const fetchRoles = useCallback(async () => {
-    setLoading(true)
-    setError(null)
-    try {
-      const res = await getRoles({
-        query: debouncedQuery || undefined,
-        page,
-        page_size: pageSize,
-      })
-      setRoles(res.data.data.roles ?? [])
-      setTotal(res.data.data.total ?? 0)
-    } catch {
-      setError("Failed to load roles.")
-    } finally {
-      setLoading(false)
-    }
-  }, [debouncedQuery, page, pageSize])
-
   // Fetch roles
   useEffect(() => {
+    const fetchRoles = async () => {
+      setLoading(true)
+      setError(null)
+      try {
+        const res = await getRoles({
+          query: debouncedQuery || undefined,
+          page,
+          page_size: pageSize,
+        })
+        setRoles(res.data.data.roles ?? [])
+        setTotal(res.data.data.total ?? 0)
+      } catch {
+        setError("Failed to load roles.")
+      } finally {
+        setLoading(false)
+      }
+    }
     fetchRoles()
-  }, [fetchRoles])
+  }, [debouncedQuery, page, pageSize])
 
   // Open role detail
   const handleViewRole = async (roleId: number) => {
@@ -120,45 +97,6 @@ export function RolesListPage() {
     }
   }
 
-  const handleDeleteRoleClick = (role: Role) => {
-    setRoleToDelete(role)
-    setDeleteDialogOpen(true)
-  }
-
-  const handleCancelDeleteRole = () => {
-    setDeleteDialogOpen(false)
-    setRoleToDelete(null)
-  }
-
-  const handleConfirmDeleteRole = async () => {
-    if (!roleToDelete) return
-    setDeleteLoading(true)
-    try {
-      const res = await deleteRole(roleToDelete.id)
-      toast.success(res.data.message ?? "Role deleted successfully")
-
-      // Close dialogs if the deleted role is currently opened.
-      if (selectedRole?.id === roleToDelete.id) {
-        setDetailOpen(false)
-        setSelectedRole(null)
-        setEditingPermissions(false)
-        setEditingRole(false)
-        setPermSearch("")
-      }
-
-      setRoleToDelete(null)
-      setDeleteDialogOpen(false)
-      await fetchRoles()
-    } catch (err: unknown) {
-      const message =
-        (err as { response?: { data?: { message?: string } } })?.response?.data?.message ??
-        "Failed to delete role."
-      toast.error(message)
-    } finally {
-      setDeleteLoading(false)
-    }
-  }
-
   // Enter role info edit mode
   const handleEditRole = () => {
     if (!selectedRole) return
@@ -364,7 +302,7 @@ export function RolesListPage() {
               {roles.map((role) => (
                 <Card
                   key={role.id}
-                  className="overflow-hidden border border-grayScale-100 shadow-sm transition-all hover:-translate-y-0.5 hover:shadow-md"
+                  className="overflow-hidden shadow-sm transition-shadow hover:shadow-md"
                 >
                   <div
                     className={cn(
@@ -374,7 +312,7 @@ export function RolesListPage() {
                         : "bg-gradient-to-r from-brand-500 to-brand-600",
                     )}
                   />
-                  <CardContent className="space-y-4 p-5">
+                  <CardContent className="p-5">
                     <div className="flex items-start justify-between gap-3">
                       <div className="flex items-center gap-2.5">
                         <div
@@ -392,63 +330,32 @@ export function RolesListPage() {
                           )}
                         </div>
                         <div>
-                          <h3 className="text-sm font-semibold uppercase tracking-wide text-grayScale-700">
+                          <h3 className="text-sm font-semibold text-grayScale-700">{role.name}</h3>
-                            {role.name}
+                          <p className="mt-0.5 text-xs text-grayScale-400 line-clamp-1">
-                          </h3>
+                            {role.description}
-                          <p className="mt-0.5 text-xs text-grayScale-500 line-clamp-2">
-                            {role.description?.trim() || "No description provided for this role."}
                           </p>
                         </div>
                       </div>
-                      <Badge
+                      {role.is_system && (
-                        variant={role.is_system ? "warning" : "outline"}
+                        <Badge variant="warning" className="shrink-0 text-[10px]">
-                        className="shrink-0 text-[10px]"
+                          System
-                      >
+                        </Badge>
-                        {role.is_system ? "System" : "Custom"}
+                      )}
-                      </Badge>
                     </div>
 
-                    <div className="grid grid-cols-2 gap-2 rounded-xl border border-grayScale-100 bg-grayScale-50/70 p-2.5 text-[11px]">
+                    <div className="mt-4 flex items-center justify-between">
-                      <div>
-                        <p className="text-grayScale-400">Role ID</p>
-                        <p className="font-semibold text-grayScale-700">#{role.id}</p>
-                      </div>
-                      <div>
-                        <p className="text-grayScale-400">Created</p>
-                        <p className="font-semibold text-grayScale-700">
-                          {new Date(role.created_at).toLocaleDateString()}
-                        </p>
-                      </div>
-                    </div>
-
-                    <div className="flex items-center justify-between">
                       <span className="text-[11px] text-grayScale-400">
-                        Open details to view permissions
+                        Created {new Date(role.created_at).toLocaleDateString()}
                       </span>
-                      <div className="flex items-center gap-2">
+                      <Button
-                        {!role.is_system && (
+                        variant="outline"
-                          <Button
+                        size="sm"
-                            type="button"
+                        className="h-8 gap-1.5 text-xs"
-                            variant="destructive"
+                        onClick={() => handleViewRole(role.id)}
-                            size="icon"
+                      >
-                            className="h-8 w-8"
+                        <Eye className="h-3.5 w-3.5" />
-                            onClick={() => handleDeleteRoleClick(role)}
+                        View
-                            disabled={deleteLoading}
+                      </Button>
-                            aria-label={`Delete role ${role.name}`}
-                          >
-                            <Trash2 className="h-4 w-4" />
-                          </Button>
-                        )}
-                        <Button
-                          variant="outline"
-                          size="sm"
-                          className="h-8 gap-1.5 text-xs"
-                          onClick={() => handleViewRole(role.id)}
-                        >
-                          <Eye className="h-3.5 w-3.5" />
-                          View
-                        </Button>
-                      </div>
                     </div>
                   </CardContent>
                 </Card>
@@ -782,55 +689,6 @@ export function RolesListPage() {
           )}
         </DialogContent>
       </Dialog>
-
-      {/* Delete role dialog */}
-      <Dialog
-        open={deleteDialogOpen}
-        onOpenChange={(open) => {
-          setDeleteDialogOpen(open)
-          if (!open) handleCancelDeleteRole()
-        }}
-      >
-        <DialogContent className="max-w-sm">
-          <DialogHeader>
-            <DialogTitle className="flex items-center gap-2 text-red-600">
-              <Trash2 className="h-5 w-5" />
-              Delete Role
-            </DialogTitle>
-            <DialogDescription>
-              Are you sure you want to delete this role? This action cannot be undone.
-            </DialogDescription>
-          </DialogHeader>
-
-          {roleToDelete && (
-            <div className="rounded-lg bg-red-50 border border-red-100 p-3">
-              <p className="text-sm font-medium text-red-700">{roleToDelete.name}</p>
-              <p className="text-xs text-red-500 mt-0.5">Role #{roleToDelete.id}</p>
-            </div>
-          )}
-
-          <div className="flex justify-end gap-2 pt-2">
-            <Button
-              variant="outline"
-              size="sm"
-              onClick={handleCancelDeleteRole}
-              disabled={deleteLoading}
-            >
-              Cancel
-            </Button>
-            <Button
-              variant="destructive"
-              size="sm"
-              className="gap-1.5"
-              disabled={deleteLoading || !roleToDelete}
-              onClick={handleConfirmDeleteRole}
-            >
-              {deleteLoading ? <SpinnerIcon className="h-3.5 w-3.5" /> : <Trash2 className="h-3.5 w-3.5" />}
-              {deleteLoading ? "Deleting..." : "Delete"}
-            </Button>
-          </div>
-        </DialogContent>
-      </Dialog>
     </div>
   )
 }

src/types/course.types.ts

@@ -45,7 +45,6 @@ export interface GetCoursesResponse {
 
 export interface CreateCourseRequest {
   category_id: number
-  sub_category_id?: number | null
   title: string
   description: string
 }
@@ -57,268 +56,6 @@ export interface UpdateCourseRequest {
   is_active?: boolean
 }
 
-/** Row from GET /programs (e.g. Beginner / Intermediate program buckets) */
-export interface LearningProgramListItem {
-  id: number
-  name: string
-  description?: string | null
-  thumbnail?: string | null
-  sort_order: number
-  created_at: string
-}
-
-export interface UpdateLearningProgramRequest {
-  name: string
-  description: string
-  thumbnail: string
-}
-
-export interface CreateLearningProgramRequest {
-  name: string
-  description: string
-  thumbnail: string
-}
-
-export interface CreateLearningProgramResponse {
-  message: string
-  data: LearningProgramListItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface GetLearningProgramsResponse {
-  message: string
-  data: {
-    programs: LearningProgramListItem[]
-    total_count: number
-    limit?: number
-    offset?: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /programs/:program_id/courses */
-export interface ProgramCourseListItem {
-  id: number
-  program_id: number
-  name: string
-  description: string
-  sort_order: number
-  created_at: string
-  thumbnail?: string | null
-  /** Some list endpoints may expose the image as `thumbnail_url` instead. */
-  thumbnail_url?: string | null
-  /** GET /programs/:id/courses aggregates. */
-  module_count?: number
-  lesson_count?: number
-  practice_count?: number
-  /** Legacy aggregate field names; prefer module_count, lesson_count, practice_count. */
-  modules_count?: number
-  videos_count?: number
-  practices_count?: number
-}
-
-/** Body for PUT /courses/:id (program-linked Learn English courses). */
-export interface UpdateTopLevelCourseRequest {
-  name: string
-  description: string
-  thumbnail: string
-}
-
-/** Body for POST /programs/:program_id/courses */
-export interface CreateProgramCourseRequest {
-  name: string
-  description: string
-  thumbnail: string
-}
-
-export interface CreateProgramCourseResponse {
-  message: string
-  data: ProgramCourseListItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export interface GetProgramCoursesResponse {
-  message: string
-  data: {
-    total_count: number
-    limit: number
-    offset: number
-    courses: ProgramCourseListItem[]
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Row from GET /courses/:courseId/modules (Learn English track). */
-export interface TopLevelCourseModuleItem {
-  id: number
-  program_id: number
-  course_id: number
-  name: string
-  description: string
-  icon?: string | null
-  sort_order: number
-  created_at: string
-}
-
-export interface GetTopLevelCourseModulesResponse {
-  message: string
-  data: {
-    limit: number
-    offset: number
-    modules: TopLevelCourseModuleItem[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Body for PUT /modules/:id (Learn English top-level modules). */
-export interface UpdateTopLevelCourseModuleRequest {
-  name: string
-  description: string
-  icon: string
-}
-
-/** Body for POST /courses/:courseId/modules */
-export interface CreateTopLevelCourseModuleRequest {
-  name: string
-  description: string
-  icon: string
-}
-
-export interface CreateTopLevelCourseModuleResponse {
-  message: string
-  data: TopLevelCourseModuleItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Row from GET /modules/:moduleId/lessons (Learn English top-level module lessons). */
-export interface TopLevelModuleLessonItem {
-  id: number
-  module_id: number
-  title: string
-  video_url: string
-  thumbnail: string
-  description: string
-  sort_order: number
-  created_at: string
-}
-
-export interface GetTopLevelModuleLessonsResponse {
-  message: string
-  data: {
-    total_count: number
-    limit: number
-    offset: number
-    lessons: TopLevelModuleLessonItem[]
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Practice returned by GET /courses|modules|lessons/.../practices (Learn English parent-linked practice). */
-export interface ParentContextPractice {
-  id: number
-  parent_kind: string
-  parent_id: number
-  title: string
-  story_description: string
-  story_image: string
-  question_set_id: number
-  quick_tips: string
-  persona_id?: number | null
-  created_at: string
-}
-
-export interface GetPracticesByParentContextResponse {
-  message: string
-  data: {
-    offset: number
-    limit: number
-    practices: ParentContextPractice[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-export type PracticeParentKind = "COURSE" | "MODULE" | "LESSON"
-
-/** POST /practices — create practice linked to a course, module, or lesson (Learn English). */
-export interface CreateParentLinkedPracticeRequest {
-  parent_kind: PracticeParentKind
-  parent_id: number
-  title: string
-  story_description: string
-  story_image: string
-  question_set_id: number
-  quick_tips: string
-  persona_id?: number
-}
-
-export interface CreateParentLinkedPracticeResponse {
-  message: string
-  data: ParentContextPractice
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Body for PUT /practices/:id (Learn English parent-linked practice). */
-export interface UpdateParentLinkedPracticeRequest {
-  title: string
-  story_description: string
-  story_image: string
-  question_set_id: number
-  quick_tips: string
-  persona_id?: number | null
-}
-
-export interface UpdateParentLinkedPracticeResponse {
-  message: string
-  data: ParentContextPractice
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
-/** Body for PUT /lessons/:id (Learn English top-level module lessons). */
-export interface UpdateTopLevelModuleLessonRequest {
-  title: string
-  video_url: string
-  thumbnail: string
-  description: string
-}
-
-/** Body for POST /modules/:moduleId/lessons. */
-export interface CreateTopLevelModuleLessonRequest {
-  title: string
-  video_url: string
-  thumbnail: string
-  description: string
-}
-
-export interface CreateTopLevelModuleLessonResponse {
-  message: string
-  data: TopLevelModuleLessonItem
-  success: boolean
-  status_code: number
-  metadata: unknown | null
-}
-
 // ============================================
 // Legacy Types (deprecated - using SubCourse hierarchy now)
 // Keeping for backward compatibility with existing API endpoints
@@ -435,13 +172,7 @@ export interface GetModulesResponse {
 export interface CreateModuleRequest {
   level_id: number
   title: string
-  /** Legacy field kept for backward compatibility. */
+  content: string
-  content?: string
-  /** Preferred field for module detail text. */
-  description?: string
-  icon_url?: string
-  display_order?: number
-  is_active?: boolean
 }
 
 /** @deprecated Use UpdateSubCourseRequest instead */
@@ -461,8 +192,6 @@ export interface UpdateModuleStatusRequest {
 export interface SubCourse {
   id: number
   course_id: number
-  /** Present when derived from course hierarchy rows (levels → modules → sub-modules). */
-  level_id?: number
   module_id?: number
   title: string
   description: string
@@ -972,72 +701,6 @@ export interface HumanLanguageLesson {
   practices: LearningPathPractice[]
 }
 
-export interface SubModuleLessonDetail {
-  id: number
-  sub_module_id: number
-  display_order: number
-  is_active: boolean
-  created_at: string
-  title: string
-  description?: string | null
-  thumbnail?: string | null
-  teaching_text?: string | null
-  teaching_image_url?: string | null
-  teaching_audio_url?: string | null
-  teaching_video_url?: string | null
-}
-
-export interface SubModuleLesson {
-  id: number
-  sub_module_id: number
-  display_order: number
-  is_active: boolean
-  created_at: string
-  title: string
-  description?: string | null
-  thumbnail?: string | null
-  teaching_text?: string | null
-  teaching_image_url?: string | null
-  teaching_audio_url?: string | null
-  teaching_video_url?: string | null
-}
-
-export interface GetSubModuleLessonDetailResponse {
-  message: string
-  data: SubModuleLessonDetail
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-export interface UpdateSubModuleLessonRequest {
-  title: string
-  description?: string | null
-  thumbnail?: string | null
-  teaching_text?: string | null
-  teaching_image_url?: string | null
-  teaching_audio_url?: string | null
-  teaching_video_url?: string | null
-  display_order: number
-  is_active: boolean
-}
-
-export interface UpdateSubModuleLessonResponse {
-  message: string
-  data: SubModuleLessonDetail
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-export interface GetSubModuleLessonsResponse {
-  message: string
-  data: SubModuleLesson[]
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
 export interface GetHumanLanguageLessonsResponse {
   message: string
   data: {
@@ -1051,209 +714,10 @@ export interface GetHumanLanguageLessonsResponse {
   metadata: unknown
 }
 
-/** Row from GET /course-management/human-language/sub-categories */
-export interface HumanLanguageSubCategoryListItem {
-  id: number
-  category_id: number
-  category_name: string
-  name: string
-  description?: string | null
-  display_order: number
-  is_active: boolean
-  created_at: string
-  /** Present on some payloads; ignore if unused. */
-  total_count?: number
-}
-
-export interface GetHumanLanguageSubCategoriesResponse {
-  message: string
-  data: {
-    sub_categories: HumanLanguageSubCategoryListItem[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /course-management/categories/:categoryId/sub-categories */
-export interface CategorySubCategoryListItem {
-  id: number
-  category_id: number
-  category_name: string
-  name: string
-  description?: string | null
-  display_order: number
-  is_active: boolean
-  created_at: string
-  /** Sometimes echoed per row by the API; safe to ignore. */
-  total_count?: number
-}
-
-export interface GetCategorySubCategoriesResponse {
-  message: string
-  data: {
-    sub_categories: CategorySubCategoryListItem[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /course-management/sub-categories/:subCategoryId/courses */
-export interface SubCategoryCourseListItem {
-  id: number
-  category_id: number
-  sub_category_id: number
-  title: string
-  description?: string | null
-  thumbnail?: string | null
-  intro_video_url?: string | null
-  is_active: boolean
-  total_count?: number
-}
-
-export interface GetSubCategoryCoursesResponse {
-  message: string
-  data: {
-    courses: SubCategoryCourseListItem[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /course-management/courses/:courseId/levels or GET /course-management/levels */
-export interface CourseLevelRow {
-  id: number
-  course_id: number
-  cefr_level: string
-  display_order: number
-  is_active: boolean
-  created_at: string
-  title: string
-  description?: string | null
-  thumbnail?: string | null
-  total_count?: number
-}
-
-export interface GetCourseLevelsForCourseResponse {
-  message: string
-  data: {
-    levels: CourseLevelRow[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-export interface GetCourseLevelsAllResponse {
-  message: string
-  data: {
-    levels: CourseLevelRow[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-export interface GetCourseLevelByIdResponse {
-  message: string
-  data: CourseLevelRow
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /course-management/modules/:moduleId/sub-modules */
-export interface CourseSubModuleListItem {
-  id: number
-  module_id: number
-  title: string
-  description?: string | null
-  display_order: number
-  is_active: boolean
-  created_at: string
-  legacy_sub_course_id?: number | null
-  thumbnail?: string | null
-  tips?: string | null
-  total_count?: number
-}
-
-export interface GetSubModulesByModuleResponse {
-  message: string
-  data: {
-    sub_modules: CourseSubModuleListItem[]
-    total_count: number
-  }
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /course-management/human-language/hierarchy */
-export interface HumanLanguageHierarchyFlatRow {
-  category_id: number
-  category_name: string
-  sub_category_id?: number | null
-  sub_category_name?: string | null
-  course_id?: number | null
-  course_title?: string | null
-}
-
-export interface GetHumanLanguageHierarchyFlatResponse {
-  message: string
-  data: HumanLanguageHierarchyFlatRow[]
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
-/** Row from GET /course-management/courses/:courseId/hierarchy */
-export interface CourseHierarchyRow {
-  course_id: number
-  course_title: string
-  level_id?: number | null
-  cefr_level?: string | null
-  level_title?: string | null
-  level_description?: string | null
-  level_thumbnail?: string | null
-  module_id?: number | null
-  module_title?: string | null
-  module_icon_url?: string | null
-  sub_module_id?: number | null
-  sub_module_title?: string | null
-  sub_module_description?: string | null
-  sub_module_thumbnail?: string | null
-  sub_module_tips?: string | null
-  sub_module_display_order?: number | null
-}
-
-export interface GetCourseHierarchyResponse {
-  message: string
-  data: CourseHierarchyRow[]
-  success: boolean
-  status_code: number
-  metadata: unknown
-}
-
 export interface HumanLanguageSubModule {
   id: number
   title: string
   videos: LearningPathVideo[]
-  lessons?: {
-    id: number
-    question_set_id: number
-    title: string
-    status: string
-    question_count: number
-    display_order: number
-    intro_video_url?: string | null
-  }[]
   practices: LearningPathPractice[]
 }
 
@@ -1264,7 +728,6 @@ export interface HumanLanguageModule {
 }
 
 export interface HumanLanguageLevelTree {
-  level_id?: number
   level: string
   modules: HumanLanguageModule[]
 }

src/types/rbac.types.ts

@@ -60,14 +60,6 @@ export interface CreateRoleResponse {
   metadata: unknown
 }
 
-export interface DeleteRoleResponse {
-  message: string
-  success: boolean
-  status_code: number
-  // Some backends may include extra fields; keep it optional for compatibility.
-  metadata?: unknown
-}
-
 export interface SetRolePermissionsRequest {
   permission_ids: number[]
 }