learning progress implementation

cmd/main.go

@@ -19,6 +19,7 @@ import (
 	notificationservice "Yimaru-Backend/internal/services/notification"
 	coursesservice "Yimaru-Backend/internal/services/courses"
 	lessonsservice "Yimaru-Backend/internal/services/lessons"
+	"Yimaru-Backend/internal/services/lmsprogress"
 	moduleservice "Yimaru-Backend/internal/services/modules"
 	practicesservice "Yimaru-Backend/internal/services/practices"
 	programsservice "Yimaru-Backend/internal/services/programs"
@@ -404,6 +405,8 @@ func main() {
 	// LMS lessons (under modules)
 	lessonSvc := lessonsservice.NewService(store, store)
 
+	lmsProgressSvc := lmsprogress.NewService(store)
+
 	// LMS practices (under course, module, or lesson)
 	practiceSvc := practicesservice.NewService(store, store, store, store, store, store)
 
@@ -452,6 +455,7 @@ func main() {
 		courseSvc,
 		moduleSvc,
 		lessonSvc,
+		lmsProgressSvc,
 		practiceSvc,
 		subscriptionsSvc,
 		arifpaySvc,

db/migrations/000049_lms_sequential_learning.down.sql

@@ -0,0 +1,18 @@
+DROP TABLE IF EXISTS lms_user_program_progress;
+DROP TABLE IF EXISTS lms_user_course_progress;
+DROP TABLE IF EXISTS lms_user_module_progress;
+DROP TABLE IF EXISTS lms_user_lesson_progress;
+
+DROP INDEX IF EXISTS uq_lessons_module_sort;
+DROP INDEX IF EXISTS uq_modules_course_sort;
+DROP INDEX IF EXISTS uq_courses_program_sort;
+DROP INDEX IF EXISTS uq_programs_sort_order;
+
+ALTER TABLE lessons
+    DROP COLUMN IF EXISTS sort_order;
+ALTER TABLE modules
+    DROP COLUMN IF EXISTS sort_order;
+ALTER TABLE courses
+    DROP COLUMN IF EXISTS sort_order;
+ALTER TABLE programs
+    DROP COLUMN IF EXISTS sort_order;

db/migrations/000049_lms_sequential_learning.up.sql

@@ -0,0 +1,150 @@
+-- Sequential order for programs, courses, modules, and lessons (1 = first in each scope).
+-- Progress tables mark completion; API enforces prerequisites for learners (STUDENT role).
+
+ALTER TABLE programs
+    ADD COLUMN sort_order INTEGER NOT NULL DEFAULT 0;
+ALTER TABLE courses
+    ADD COLUMN sort_order INTEGER NOT NULL DEFAULT 0;
+ALTER TABLE modules
+    ADD COLUMN sort_order INTEGER NOT NULL DEFAULT 0;
+ALTER TABLE lessons
+    ADD COLUMN sort_order INTEGER NOT NULL DEFAULT 0;
+
+-- Program order (one global sequence): Beginner -> Intermediate -> Advanced; others by id
+UPDATE programs
+SET sort_order = v.so
+FROM (
+    VALUES
+        ('Beginner', 1),
+        ('Intermediate', 2),
+        ('Advanced', 3)
+) AS v (name, so)
+WHERE programs.name = v.name;
+
+UPDATE programs
+SET sort_order = 1000 + r.rn
+FROM (
+    SELECT
+        id,
+        row_number() OVER (
+            ORDER BY id
+        ) AS rn
+    FROM programs
+    WHERE
+        sort_order = 0
+) AS r
+WHERE
+    programs.id = r.id;
+
+-- CEFR courses: A1..C2; remaining courses in each program: stable order
+UPDATE courses
+SET sort_order = CASE name
+    WHEN 'A1' THEN
+        1
+    WHEN 'A2' THEN
+        2
+    WHEN 'B1' THEN
+        3
+    WHEN 'B2' THEN
+        4
+    WHEN 'C1' THEN
+        5
+    WHEN 'C2' THEN
+        6
+    ELSE
+        0
+END
+WHERE
+    name IN ('A1', 'A2', 'B1', 'B2', 'C1', 'C2');
+
+UPDATE courses c
+SET sort_order = 2000 + s.rn
+FROM (
+    SELECT
+        id,
+        row_number() OVER (
+            PARTITION BY program_id
+            ORDER BY
+                id
+        ) AS rn
+    FROM courses
+    WHERE
+        sort_order = 0
+) AS s
+WHERE
+    c.id = s.id;
+
+UPDATE modules m
+SET sort_order = r.rn
+FROM (
+    SELECT
+        id,
+        row_number() OVER (
+            PARTITION BY course_id
+            ORDER BY
+                id
+        ) AS rn
+    FROM modules
+) AS r
+WHERE
+    m.id = r.id;
+
+UPDATE lessons l
+SET sort_order = r.rn
+FROM (
+    SELECT
+        id,
+        row_number() OVER (
+            PARTITION BY module_id
+            ORDER BY
+                id
+        ) AS rn
+    FROM lessons
+) AS r
+WHERE
+    l.id = r.id;
+
+CREATE UNIQUE INDEX uq_programs_sort_order ON programs (sort_order);
+CREATE UNIQUE INDEX uq_courses_program_sort ON courses (program_id, sort_order);
+CREATE UNIQUE INDEX uq_modules_course_sort ON modules (course_id, sort_order);
+CREATE UNIQUE INDEX uq_lessons_module_sort ON lessons (module_id, sort_order);
+
+CREATE TABLE lms_user_lesson_progress (
+    user_id BIGINT NOT NULL REFERENCES users (id) ON DELETE CASCADE,
+    lesson_id BIGINT NOT NULL REFERENCES lessons (id) ON DELETE CASCADE,
+    completed_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY (user_id, lesson_id)
+);
+
+CREATE INDEX idx_lms_user_lesson_progress_user ON lms_user_lesson_progress (user_id);
+CREATE INDEX idx_lms_user_lesson_progress_lesson ON lms_user_lesson_progress (lesson_id);
+
+CREATE TABLE lms_user_module_progress (
+    user_id BIGINT NOT NULL REFERENCES users (id) ON DELETE CASCADE,
+    module_id BIGINT NOT NULL REFERENCES modules (id) ON DELETE CASCADE,
+    completed_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY (user_id, module_id)
+);
+
+CREATE INDEX idx_lms_user_module_progress_user ON lms_user_module_progress (user_id);
+CREATE INDEX idx_lms_user_module_progress_module ON lms_user_module_progress (module_id);
+
+CREATE TABLE lms_user_course_progress (
+    user_id BIGINT NOT NULL REFERENCES users (id) ON DELETE CASCADE,
+    course_id BIGINT NOT NULL REFERENCES courses (id) ON DELETE CASCADE,
+    completed_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY (user_id, course_id)
+);
+
+CREATE INDEX idx_lms_user_course_progress_user ON lms_user_course_progress (user_id);
+CREATE INDEX idx_lms_user_course_progress_course ON lms_user_course_progress (course_id);
+
+CREATE TABLE lms_user_program_progress (
+    user_id BIGINT NOT NULL REFERENCES users (id) ON DELETE CASCADE,
+    program_id BIGINT NOT NULL REFERENCES programs (id) ON DELETE CASCADE,
+    completed_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY (user_id, program_id)
+);
+
+CREATE INDEX idx_lms_user_program_progress_user ON lms_user_program_progress (user_id);
+CREATE INDEX idx_lms_user_program_progress_program ON lms_user_program_progress (program_id);

db/query/lms_courses.sql

@@ -1,13 +1,34 @@
 -- name: CreateCourse :one
-INSERT INTO courses (program_id, name, description, thumbnail)
+INSERT INTO courses (program_id, name, description, thumbnail, sort_order)
-VALUES ($1, $2, $3, $4)
+SELECT
-RETURNING *;
+    $1,
+    $2,
+    $3,
+    $4,
+    coalesce((
+        SELECT
+            max(c.sort_order)
+        FROM courses c
+        WHERE
+            c.program_id = $1), 0) + 1
+RETURNING
+    *;
 
 -- name: GetCourseByID :one
 SELECT *
 FROM courses
 WHERE id = $1;
 
+-- name: ListCourseIDsByProgram :many
+SELECT
+    c.id
+FROM
+    courses AS c
+WHERE
+    c.program_id = $1
+ORDER BY
+    c.id;
+
 -- name: ListCoursesByProgramID :many
 SELECT
     COUNT(*) OVER () AS total_count,
@@ -16,11 +37,16 @@ SELECT
     c.name,
     c.description,
     c.thumbnail,
+    c.sort_order,
     c.created_at,
     c.updated_at
-FROM courses c
+FROM
-WHERE c.program_id = $1
+    courses c
-ORDER BY c.created_at DESC
+WHERE
+    c.program_id = $1
+ORDER BY
+    c.sort_order ASC,
+    c.id ASC
 LIMIT $2 OFFSET $3;
 
 -- name: UpdateCourse :one
@@ -29,9 +55,12 @@ SET
     name = COALESCE(sqlc.narg('name')::varchar, name),
     description = COALESCE(sqlc.narg('description')::text, description),
     thumbnail = COALESCE(sqlc.narg('thumbnail')::text, thumbnail),
+    sort_order = coalesce(sqlc.narg('sort_order')::int, sort_order),
     updated_at = CURRENT_TIMESTAMP
-WHERE id = sqlc.arg('id')
+WHERE
-RETURNING *;
+    id = sqlc.arg('id')
+RETURNING
+    *;
 
 -- name: DeleteCourse :exec
 DELETE FROM courses

db/query/lms_lessons.sql

@@ -1,7 +1,19 @@
 -- name: CreateLesson :one
-INSERT INTO lessons (module_id, title, video_url, thumbnail, description)
+INSERT INTO lessons (module_id, title, video_url, thumbnail, description, sort_order)
-VALUES ($1, $2, $3, $4, $5)
+SELECT
-RETURNING *;
+    $1,
+    $2,
+    $3,
+    $4,
+    $5,
+    coalesce((
+        SELECT
+            max(l.sort_order)
+        FROM lessons l
+        WHERE
+            l.module_id = $1), 0) + 1
+RETURNING
+    *;
 
 -- name: GetLessonByID :one
 SELECT *
@@ -17,12 +29,18 @@ SELECT
     l.video_url,
     l.thumbnail,
     l.description,
+    l.sort_order,
     l.created_at,
     l.updated_at
-FROM lessons l
+FROM
-WHERE l.module_id = $1
+    lessons l
-ORDER BY l.created_at DESC
+WHERE
-LIMIT $2 OFFSET $3;
+    l.module_id = $1
+ORDER BY
+    l.sort_order ASC,
+    l.id ASC
+LIMIT $2
+OFFSET $3;
 
 -- name: UpdateLesson :one
 UPDATE lessons
@@ -31,9 +49,12 @@ SET
     video_url = COALESCE(sqlc.narg('video_url')::text, video_url),
     thumbnail = COALESCE(sqlc.narg('thumbnail')::text, thumbnail),
     description = COALESCE(sqlc.narg('description')::text, description),
+    sort_order = coalesce(sqlc.narg('sort_order')::int, sort_order),
     updated_at = CURRENT_TIMESTAMP
-WHERE id = sqlc.arg('id')
+WHERE
-RETURNING *;
+    id = sqlc.arg('id')
+RETURNING
+    *;
 
 -- name: DeleteLesson :exec
 DELETE FROM lessons

db/query/lms_modules.sql

@@ -1,13 +1,35 @@
 -- name: CreateModule :one
-INSERT INTO modules (program_id, course_id, name, description, icon)
+INSERT INTO modules (program_id, course_id, name, description, icon, sort_order)
-VALUES ($1, $2, $3, $4, $5)
+SELECT
-RETURNING *;
+    $1,
+    $2,
+    $3,
+    $4,
+    $5,
+    coalesce((
+        SELECT
+            max(m.sort_order)
+        FROM modules m
+        WHERE
+            m.course_id = $2), 0) + 1
+RETURNING
+    *;
 
 -- name: GetModuleByID :one
 SELECT *
 FROM modules
 WHERE id = $1;
 
+-- name: ListModuleIDsByCourse :many
+SELECT
+    m.id
+FROM
+    modules AS m
+WHERE
+    m.course_id = $1
+ORDER BY
+    m.id;
+
 -- name: ListModulesByProgramAndCourse :many
 SELECT
     COUNT(*) OVER () AS total_count,
@@ -17,13 +39,19 @@ SELECT
     m.name,
     m.description,
     m.icon,
+    m.sort_order,
     m.created_at,
     m.updated_at
-FROM modules m
+FROM
-WHERE m.program_id = $1
+    modules m
-  AND m.course_id = $2
+WHERE
-ORDER BY m.created_at DESC
+    m.program_id = $1
-LIMIT $3 OFFSET $4;
+    AND m.course_id = $2
+ORDER BY
+    m.sort_order ASC,
+    m.id ASC
+LIMIT $3
+OFFSET $4;
 
 -- name: UpdateModule :one
 UPDATE modules
@@ -31,9 +59,12 @@ SET
     name = COALESCE(sqlc.narg('name')::varchar, name),
     description = COALESCE(sqlc.narg('description')::text, description),
     icon = COALESCE(sqlc.narg('icon')::text, icon),
+    sort_order = coalesce(sqlc.narg('sort_order')::int, sort_order),
     updated_at = CURRENT_TIMESTAMP
-WHERE id = sqlc.arg('id')
+WHERE
-RETURNING *;
+    id = sqlc.arg('id')
+RETURNING
+    *;
 
 -- name: DeleteModule :exec
 DELETE FROM modules

db/query/lms_progress.sql

@@ -0,0 +1,248 @@
+-- name: GetPreviousProgram :one
+SELECT
+    p2.*
+FROM
+    programs AS p1
+    INNER JOIN programs AS p2 ON p2.sort_order = p1.sort_order - 1
+WHERE
+    p1.id = $1;
+
+-- name: GetPreviousCourseInProgram :one
+SELECT
+    c2.*
+FROM
+    courses AS c1
+    INNER JOIN courses AS c2 ON c2.program_id = c1.program_id
+    AND c2.sort_order = c1.sort_order - 1
+WHERE
+    c1.id = $1;
+
+-- name: GetPreviousModuleInCourse :one
+SELECT
+    m2.*
+FROM
+    modules AS m1
+    INNER JOIN modules AS m2 ON m2.course_id = m1.course_id
+    AND m2.sort_order = m1.sort_order - 1
+WHERE
+    m1.id = $1;
+
+-- name: GetPreviousLessonInModule :one
+SELECT
+    l2.*
+FROM
+    lessons AS l1
+    INNER JOIN lessons AS l2 ON l2.module_id = l1.module_id
+    AND l2.sort_order = l1.sort_order - 1
+WHERE
+    l1.id = $1;
+
+-- name: UserHasProgramProgress :one
+SELECT
+    EXISTS (
+        SELECT
+            1
+        FROM
+            lms_user_program_progress
+        WHERE
+            user_id = $1
+            AND program_id = $2) AS v;
+
+-- name: UserHasCourseProgress :one
+SELECT
+    EXISTS (
+        SELECT
+            1
+        FROM
+            lms_user_course_progress
+        WHERE
+            user_id = $1
+            AND course_id = $2) AS v;
+
+-- name: UserHasModuleProgress :one
+SELECT
+    EXISTS (
+        SELECT
+            1
+        FROM
+            lms_user_module_progress
+        WHERE
+            user_id = $1
+            AND module_id = $2) AS v;
+
+-- name: UserHasLessonProgress :one
+SELECT
+    EXISTS (
+        SELECT
+            1
+        FROM
+            lms_user_lesson_progress
+        WHERE
+            user_id = $1
+            AND lesson_id = $2) AS v;
+
+-- name: InsertUserLessonProgress :exec
+INSERT INTO lms_user_lesson_progress (user_id, lesson_id)
+    VALUES ($1, $2)
+ON CONFLICT (user_id, lesson_id)
+    DO NOTHING;
+
+-- name: InsertUserModuleProgress :exec
+INSERT INTO lms_user_module_progress (user_id, module_id)
+    VALUES ($1, $2)
+ON CONFLICT (user_id, module_id)
+    DO NOTHING;
+
+-- name: InsertUserCourseProgress :exec
+INSERT INTO lms_user_course_progress (user_id, course_id)
+    VALUES ($1, $2)
+ON CONFLICT (user_id, course_id)
+    DO NOTHING;
+
+-- name: InsertUserProgramProgress :exec
+INSERT INTO lms_user_program_progress (user_id, program_id)
+    VALUES ($1, $2)
+ON CONFLICT (user_id, program_id)
+    DO NOTHING;
+
+-- name: CountLessonsInModule :one
+SELECT
+    count(*)::int AS n
+FROM
+    lessons
+WHERE
+    module_id = $1;
+
+-- name: CountUserCompletedLessonsInModule :one
+SELECT
+    count(*)::int AS n
+FROM
+    lms_user_lesson_progress ulp
+    INNER JOIN lessons l ON l.id = ulp.lesson_id
+WHERE
+    l.module_id = $1
+    AND ulp.user_id = $2;
+
+-- name: CountModulesInCourse :one
+SELECT
+    count(*)::int AS n
+FROM
+    modules
+WHERE
+    course_id = $1;
+
+-- name: CountUserCompletedModulesInCourse :one
+SELECT
+    count(*)::int AS n
+FROM
+    lms_user_module_progress ump
+    INNER JOIN modules m ON m.id = ump.module_id
+WHERE
+    m.course_id = $1
+    AND ump.user_id = $2;
+
+-- name: CountCoursesInProgram :one
+SELECT
+    count(*)::int AS n
+FROM
+    courses
+WHERE
+    program_id = $1;
+
+-- name: CountUserCompletedCoursesInProgram :one
+SELECT
+    count(*)::int AS n
+FROM
+    lms_user_course_progress ucp
+    INNER JOIN courses c ON c.id = ucp.course_id
+WHERE
+    c.program_id = $1
+    AND ucp.user_id = $2;
+
+-- name: ListLMSCompletedLessonIDsByUser :many
+SELECT
+    ulp.lesson_id
+FROM
+    lms_user_lesson_progress AS ulp
+WHERE
+    ulp.user_id = $1
+ORDER BY
+    ulp.completed_at ASC,
+    ulp.lesson_id ASC;
+
+-- name: ListLMSCompletedModuleIDsByUser :many
+SELECT
+    ump.module_id
+FROM
+    lms_user_module_progress AS ump
+WHERE
+    ump.user_id = $1
+ORDER BY
+    ump.completed_at ASC,
+    ump.module_id ASC;
+
+-- name: ListLMSCompletedCourseIDsByUser :many
+SELECT
+    ucp.course_id
+FROM
+    lms_user_course_progress AS ucp
+WHERE
+    ucp.user_id = $1
+ORDER BY
+    ucp.completed_at ASC,
+    ucp.course_id ASC;
+
+-- name: ListLMSCompletedProgramIDsByUser :many
+SELECT
+    upp.program_id
+FROM
+    lms_user_program_progress AS upp
+WHERE
+    upp.user_id = $1
+ORDER BY
+    upp.completed_at ASC,
+    upp.program_id ASC;
+
+-- Lesson-based progress within a course (all modules).
+-- name: CountLessonsInCourse :one
+SELECT
+    count(*)::int AS n
+FROM
+    lessons l
+    INNER JOIN modules m ON m.id = l.module_id
+WHERE
+    m.course_id = $1;
+
+-- name: CountUserCompletedLessonsInCourse :one
+SELECT
+    count(*)::int AS n
+FROM
+    lms_user_lesson_progress ulp
+    INNER JOIN lessons l ON l.id = ulp.lesson_id
+    INNER JOIN modules m ON m.id = l.module_id
+WHERE
+    m.course_id = $1
+    AND ulp.user_id = $2;
+
+-- Lesson-based progress within a program (all courses).
+-- name: CountLessonsInProgram :one
+SELECT
+    count(*)::int AS n
+FROM
+    lessons l
+    INNER JOIN modules m ON m.id = l.module_id
+    INNER JOIN courses c ON c.id = m.course_id
+WHERE
+    c.program_id = $1;
+
+-- name: CountUserCompletedLessonsInProgram :one
+SELECT
+    count(*)::int AS n
+FROM
+    lms_user_lesson_progress ulp
+    INNER JOIN lessons l ON l.id = ulp.lesson_id
+    INNER JOIN modules m ON m.id = l.module_id
+    INNER JOIN courses c ON c.id = m.course_id
+WHERE
+    c.program_id = $1
+    AND ulp.user_id = $2;

db/query/programs.sql

@@ -1,13 +1,29 @@
 -- name: CreateProgram :one
-INSERT INTO programs (name, description, thumbnail)
+INSERT INTO programs (name, description, thumbnail, sort_order)
-VALUES ($1, $2, $3)
+SELECT
-RETURNING *;
+    $1,
+    $2,
+    $3,
+    coalesce((
+        SELECT
+            max(p.sort_order)
+        FROM programs AS p), 0) + 1
+RETURNING
+    *;
 
 -- name: GetProgramByID :one
 SELECT *
 FROM programs
 WHERE id = $1;
 
+-- name: ListAllProgramIDs :many
+SELECT
+    p.id
+FROM
+    programs AS p
+ORDER BY
+    p.id;
+
 -- name: ListPrograms :many
 SELECT
     COUNT(*) OVER () AS total_count,
@@ -15,10 +31,11 @@ SELECT
     p.name,
     p.description,
     p.thumbnail,
+    p.sort_order,
     p.created_at,
     p.updated_at
 FROM programs p
-ORDER BY p.created_at DESC
+ORDER BY p.sort_order ASC, p.id ASC
 LIMIT $1 OFFSET $2;
 
 -- name: UpdateProgram :one
@@ -27,9 +44,12 @@ SET
     name = COALESCE(sqlc.narg('name')::varchar, name),
     description = COALESCE(sqlc.narg('description')::text, description),
     thumbnail = COALESCE(sqlc.narg('thumbnail')::text, thumbnail),
+    sort_order = coalesce(sqlc.narg('sort_order')::int, sort_order),
     updated_at = CURRENT_TIMESTAMP
-WHERE id = sqlc.arg('id')
+WHERE
-RETURNING *;
+    id = sqlc.arg('id')
+RETURNING
+    *;
 
 -- name: DeleteProgram :exec
 DELETE FROM programs

docs/docs.go

@@ -800,6 +800,33 @@ const docTemplate = `{
                 }
             }
         },
+        "/api/v1/courses/{courseId}/modules/reorder": {
+            "put": {
+                "tags": [
+                    "modules"
+                ],
+                "summary": "Reorder modules within a course",
+                "parameters": [
+                    {
+                        "type": "integer",
+                        "description": "Course ID",
+                        "name": "courseId",
+                        "in": "path",
+                        "required": true
+                    },
+                    {
+                        "description": "ordered_ids: every module id in this course, in the new order",
+                        "name": "body",
+                        "in": "body",
+                        "required": true,
+                        "schema": {
+                            "$ref": "#/definitions/domain.ReorderIDsRequest"
+                        }
+                    }
+                ],
+                "responses": {}
+            }
+        },
         "/api/v1/courses/{id}": {
             "get": {
                 "produces": [
@@ -1530,6 +1557,38 @@ const docTemplate = `{
                 "responses": {}
             }
         },
+        "/api/v1/lessons/{id}/complete": {
+            "post": {
+                "description": "Records lesson completion; may cascade to module, course, and program progress for the authenticated user. Learners must meet sequential prerequisites; staff bypass checks.",
+                "tags": [
+                    "lessons"
+                ],
+                "summary": "Mark a lesson as completed",
+                "parameters": [
+                    {
+                        "type": "integer",
+                        "description": "Lesson ID",
+                        "name": "id",
+                        "in": "path",
+                        "required": true
+                    }
+                ],
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "$ref": "#/definitions/domain.Response"
+                        }
+                    },
+                    "403": {
+                        "description": "Forbidden",
+                        "schema": {
+                            "$ref": "#/definitions/domain.ErrorResponse"
+                        }
+                    }
+                }
+            }
+        },
         "/api/v1/lessons/{id}/practices": {
             "get": {
                 "tags": [
@@ -1547,6 +1606,32 @@ const docTemplate = `{
                 "responses": {}
             }
         },
+        "/api/v1/lms/progress": {
+            "get": {
+                "description": "Returns completed lesson, module, course, and program IDs for the authenticated user (ordered by completion time, then id).",
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "lms"
+                ],
+                "summary": "Get my LMS completion history",
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "$ref": "#/definitions/domain.Response"
+                        }
+                    },
+                    "500": {
+                        "description": "Internal Server Error",
+                        "schema": {
+                            "$ref": "#/definitions/domain.ErrorResponse"
+                        }
+                    }
+                }
+            }
+        },
         "/api/v1/logs": {
             "get": {
                 "description": "Fetches application logs from MongoDB with pagination, level filtering, and search",
@@ -2769,6 +2854,46 @@ const docTemplate = `{
                 }
             }
         },
+        "/api/v1/programs/reorder": {
+            "put": {
+                "description": "Sets learning order of programs. Body must list every current program id exactly once, in the desired order (index 0 = first in path).",
+                "consumes": [
+                    "application/json"
+                ],
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "programs"
+                ],
+                "summary": "Reorder all programs",
+                "parameters": [
+                    {
+                        "description": "New order: ordered_ids is the full set of program ids",
+                        "name": "body",
+                        "in": "body",
+                        "required": true,
+                        "schema": {
+                            "$ref": "#/definitions/domain.ReorderIDsRequest"
+                        }
+                    }
+                ],
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "$ref": "#/definitions/domain.Response"
+                        }
+                    },
+                    "400": {
+                        "description": "Bad Request",
+                        "schema": {
+                            "$ref": "#/definitions/domain.ErrorResponse"
+                        }
+                    }
+                }
+            }
+        },
         "/api/v1/programs/{id}": {
             "get": {
                 "produces": [
@@ -2981,6 +3106,33 @@ const docTemplate = `{
                 }
             }
         },
+        "/api/v1/programs/{id}/courses/reorder": {
+            "put": {
+                "tags": [
+                    "courses"
+                ],
+                "summary": "Reorder courses within a program",
+                "parameters": [
+                    {
+                        "type": "integer",
+                        "description": "Program ID",
+                        "name": "id",
+                        "in": "path",
+                        "required": true
+                    },
+                    {
+                        "description": "ordered_ids: every course id in this program, in the new order",
+                        "name": "body",
+                        "in": "body",
+                        "required": true,
+                        "schema": {
+                            "$ref": "#/definitions/domain.ReorderIDsRequest"
+                        }
+                    }
+                ],
+                "responses": {}
+            }
+        },
         "/api/v1/progress/practices/{id}/complete": {
             "post": {
                 "description": "Marks a practice question set as completed for the authenticated learner",
@@ -8492,6 +8644,17 @@ const docTemplate = `{
                 }
             }
         },
+        "domain.ReorderIDsRequest": {
+            "type": "object",
+            "properties": {
+                "ordered_ids": {
+                    "type": "array",
+                    "items": {
+                        "type": "integer"
+                    }
+                }
+            }
+        },
         "domain.ResendOtpReq": {
             "type": "object",
             "properties": {
@@ -8749,6 +8912,9 @@ const docTemplate = `{
                 "name": {
                     "type": "string"
                 },
+                "sort_order": {
+                    "type": "integer"
+                },
                 "thumbnail": {
                     "type": "string"
                 }
@@ -8772,6 +8938,9 @@ const docTemplate = `{
                 "description": {
                     "type": "string"
                 },
+                "sort_order": {
+                    "type": "integer"
+                },
                 "thumbnail": {
                     "type": "string"
                 },
@@ -8794,6 +8963,9 @@ const docTemplate = `{
                 },
                 "name": {
                     "type": "string"
+                },
+                "sort_order": {
+                    "type": "integer"
                 }
             }
         },
@@ -8829,6 +9001,9 @@ const docTemplate = `{
                 "name": {
                     "type": "string"
                 },
+                "sort_order": {
+                    "type": "integer"
+                },
                 "thumbnail": {
                     "type": "string"
                 }

docs/swagger.json

@@ -792,6 +792,33 @@
                 }
             }
         },
+        "/api/v1/courses/{courseId}/modules/reorder": {
+            "put": {
+                "tags": [
+                    "modules"
+                ],
+                "summary": "Reorder modules within a course",
+                "parameters": [
+                    {
+                        "type": "integer",
+                        "description": "Course ID",
+                        "name": "courseId",
+                        "in": "path",
+                        "required": true
+                    },
+                    {
+                        "description": "ordered_ids: every module id in this course, in the new order",
+                        "name": "body",
+                        "in": "body",
+                        "required": true,
+                        "schema": {
+                            "$ref": "#/definitions/domain.ReorderIDsRequest"
+                        }
+                    }
+                ],
+                "responses": {}
+            }
+        },
         "/api/v1/courses/{id}": {
             "get": {
                 "produces": [
@@ -1522,6 +1549,38 @@
                 "responses": {}
             }
         },
+        "/api/v1/lessons/{id}/complete": {
+            "post": {
+                "description": "Records lesson completion; may cascade to module, course, and program progress for the authenticated user. Learners must meet sequential prerequisites; staff bypass checks.",
+                "tags": [
+                    "lessons"
+                ],
+                "summary": "Mark a lesson as completed",
+                "parameters": [
+                    {
+                        "type": "integer",
+                        "description": "Lesson ID",
+                        "name": "id",
+                        "in": "path",
+                        "required": true
+                    }
+                ],
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "$ref": "#/definitions/domain.Response"
+                        }
+                    },
+                    "403": {
+                        "description": "Forbidden",
+                        "schema": {
+                            "$ref": "#/definitions/domain.ErrorResponse"
+                        }
+                    }
+                }
+            }
+        },
         "/api/v1/lessons/{id}/practices": {
             "get": {
                 "tags": [
@@ -1539,6 +1598,32 @@
                 "responses": {}
             }
         },
+        "/api/v1/lms/progress": {
+            "get": {
+                "description": "Returns completed lesson, module, course, and program IDs for the authenticated user (ordered by completion time, then id).",
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "lms"
+                ],
+                "summary": "Get my LMS completion history",
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "$ref": "#/definitions/domain.Response"
+                        }
+                    },
+                    "500": {
+                        "description": "Internal Server Error",
+                        "schema": {
+                            "$ref": "#/definitions/domain.ErrorResponse"
+                        }
+                    }
+                }
+            }
+        },
         "/api/v1/logs": {
             "get": {
                 "description": "Fetches application logs from MongoDB with pagination, level filtering, and search",
@@ -2761,6 +2846,46 @@
                 }
             }
         },
+        "/api/v1/programs/reorder": {
+            "put": {
+                "description": "Sets learning order of programs. Body must list every current program id exactly once, in the desired order (index 0 = first in path).",
+                "consumes": [
+                    "application/json"
+                ],
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "programs"
+                ],
+                "summary": "Reorder all programs",
+                "parameters": [
+                    {
+                        "description": "New order: ordered_ids is the full set of program ids",
+                        "name": "body",
+                        "in": "body",
+                        "required": true,
+                        "schema": {
+                            "$ref": "#/definitions/domain.ReorderIDsRequest"
+                        }
+                    }
+                ],
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "$ref": "#/definitions/domain.Response"
+                        }
+                    },
+                    "400": {
+                        "description": "Bad Request",
+                        "schema": {
+                            "$ref": "#/definitions/domain.ErrorResponse"
+                        }
+                    }
+                }
+            }
+        },
         "/api/v1/programs/{id}": {
             "get": {
                 "produces": [
@@ -2973,6 +3098,33 @@
                 }
             }
         },
+        "/api/v1/programs/{id}/courses/reorder": {
+            "put": {
+                "tags": [
+                    "courses"
+                ],
+                "summary": "Reorder courses within a program",
+                "parameters": [
+                    {
+                        "type": "integer",
+                        "description": "Program ID",
+                        "name": "id",
+                        "in": "path",
+                        "required": true
+                    },
+                    {
+                        "description": "ordered_ids: every course id in this program, in the new order",
+                        "name": "body",
+                        "in": "body",
+                        "required": true,
+                        "schema": {
+                            "$ref": "#/definitions/domain.ReorderIDsRequest"
+                        }
+                    }
+                ],
+                "responses": {}
+            }
+        },
         "/api/v1/progress/practices/{id}/complete": {
             "post": {
                 "description": "Marks a practice question set as completed for the authenticated learner",
@@ -8484,6 +8636,17 @@
                 }
             }
         },
+        "domain.ReorderIDsRequest": {
+            "type": "object",
+            "properties": {
+                "ordered_ids": {
+                    "type": "array",
+                    "items": {
+                        "type": "integer"
+                    }
+                }
+            }
+        },
         "domain.ResendOtpReq": {
             "type": "object",
             "properties": {
@@ -8741,6 +8904,9 @@
                 "name": {
                     "type": "string"
                 },
+                "sort_order": {
+                    "type": "integer"
+                },
                 "thumbnail": {
                     "type": "string"
                 }
@@ -8764,6 +8930,9 @@
                 "description": {
                     "type": "string"
                 },
+                "sort_order": {
+                    "type": "integer"
+                },
                 "thumbnail": {
                     "type": "string"
                 },
@@ -8786,6 +8955,9 @@
                 },
                 "name": {
                     "type": "string"
+                },
+                "sort_order": {
+                    "type": "integer"
                 }
             }
         },
@@ -8821,6 +8993,9 @@
                 "name": {
                     "type": "string"
                 },
+                "sort_order": {
+                    "type": "integer"
+                },
                 "thumbnail": {
                     "type": "string"
                 }

docs/swagger.yaml

@@ -351,6 +351,13 @@ definitions:
       role:
         type: string
     type: object
+  domain.ReorderIDsRequest:
+    properties:
+      ordered_ids:
+        items:
+          type: integer
+        type: array
+    type: object
   domain.ResendOtpReq:
     properties:
       email:
@@ -530,6 +537,8 @@ definitions:
         type: string
       name:
         type: string
+      sort_order:
+        type: integer
       thumbnail:
         type: string
     type: object
@@ -545,6 +554,8 @@ definitions:
     properties:
       description:
         type: string
+      sort_order:
+        type: integer
       thumbnail:
         type: string
       title:
@@ -560,6 +571,8 @@ definitions:
         type: string
       name:
         type: string
+      sort_order:
+        type: integer
     type: object
   domain.UpdatePracticeInput:
     properties:
@@ -582,6 +595,8 @@ definitions:
         type: string
       name:
         type: string
+      sort_order:
+        type: integer
       thumbnail:
         type: string
     type: object
@@ -2407,6 +2422,24 @@ paths:
       summary: Create module
       tags:
       - modules
+  /api/v1/courses/{courseId}/modules/reorder:
+    put:
+      parameters:
+      - description: Course ID
+        in: path
+        name: courseId
+        required: true
+        type: integer
+      - description: 'ordered_ids: every module id in this course, in the new order'
+        in: body
+        name: body
+        required: true
+        schema:
+          $ref: '#/definitions/domain.ReorderIDsRequest'
+      responses: {}
+      summary: Reorder modules within a course
+      tags:
+      - modules
   /api/v1/courses/{id}:
     delete:
       parameters:
@@ -2863,6 +2896,29 @@ paths:
       responses: {}
       tags:
       - lessons
+  /api/v1/lessons/{id}/complete:
+    post:
+      description: Records lesson completion; may cascade to module, course, and program
+        progress for the authenticated user. Learners must meet sequential prerequisites;
+        staff bypass checks.
+      parameters:
+      - description: Lesson ID
+        in: path
+        name: id
+        required: true
+        type: integer
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/domain.Response'
+        "403":
+          description: Forbidden
+          schema:
+            $ref: '#/definitions/domain.ErrorResponse'
+      summary: Mark a lesson as completed
+      tags:
+      - lessons
   /api/v1/lessons/{id}/practices:
     get:
       parameters:
@@ -2874,6 +2930,24 @@ paths:
       responses: {}
       tags:
       - practices
+  /api/v1/lms/progress:
+    get:
+      description: Returns completed lesson, module, course, and program IDs for the
+        authenticated user (ordered by completion time, then id).
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/domain.Response'
+        "500":
+          description: Internal Server Error
+          schema:
+            $ref: '#/definitions/domain.ErrorResponse'
+      summary: Get my LMS completion history
+      tags:
+      - lms
   /api/v1/logs:
     get:
       description: Fetches application logs from MongoDB with pagination, level filtering,
@@ -3829,6 +3903,51 @@ paths:
       summary: Create course
       tags:
       - courses
+  /api/v1/programs/{id}/courses/reorder:
+    put:
+      parameters:
+      - description: Program ID
+        in: path
+        name: id
+        required: true
+        type: integer
+      - description: 'ordered_ids: every course id in this program, in the new order'
+        in: body
+        name: body
+        required: true
+        schema:
+          $ref: '#/definitions/domain.ReorderIDsRequest'
+      responses: {}
+      summary: Reorder courses within a program
+      tags:
+      - courses
+  /api/v1/programs/reorder:
+    put:
+      consumes:
+      - application/json
+      description: Sets learning order of programs. Body must list every current program
+        id exactly once, in the desired order (index 0 = first in path).
+      parameters:
+      - description: 'New order: ordered_ids is the full set of program ids'
+        in: body
+        name: body
+        required: true
+        schema:
+          $ref: '#/definitions/domain.ReorderIDsRequest'
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/domain.Response'
+        "400":
+          description: Bad Request
+          schema:
+            $ref: '#/definitions/domain.ErrorResponse'
+      summary: Reorder all programs
+      tags:
+      - programs
   /api/v1/progress/practices/{id}/complete:
     post:
       description: Marks a practice question set as completed for the authenticated

gen/db/lms_courses.sql.go

@@ -12,9 +12,20 @@ import (
 )
 
 const CreateCourse = `-- name: CreateCourse :one
-INSERT INTO courses (program_id, name, description, thumbnail)
+INSERT INTO courses (program_id, name, description, thumbnail, sort_order)
-VALUES ($1, $2, $3, $4)
+SELECT
-RETURNING id, program_id, name, description, thumbnail, created_at, updated_at
+    $1,
+    $2,
+    $3,
+    $4,
+    coalesce((
+        SELECT
+            max(c.sort_order)
+        FROM courses c
+        WHERE
+            c.program_id = $1), 0) + 1
+RETURNING
+    id, program_id, name, description, thumbnail, created_at, updated_at, sort_order
 `
 
 type CreateCourseParams struct {
@@ -40,6 +51,7 @@ func (q *Queries) CreateCourse(ctx context.Context, arg CreateCourseParams) (Cou
 		&i.Thumbnail,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SortOrder,
 	)
 	return i, err
 }
@@ -55,7 +67,7 @@ func (q *Queries) DeleteCourse(ctx context.Context, id int64) error {
 }
 
 const GetCourseByID = `-- name: GetCourseByID :one
-SELECT id, program_id, name, description, thumbnail, created_at, updated_at
+SELECT id, program_id, name, description, thumbnail, created_at, updated_at, sort_order
 FROM courses
 WHERE id = $1
 `
@@ -71,10 +83,42 @@ func (q *Queries) GetCourseByID(ctx context.Context, id int64) (Course, error) {
 		&i.Thumbnail,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SortOrder,
 	)
 	return i, err
 }
 
+const ListCourseIDsByProgram = `-- name: ListCourseIDsByProgram :many
+SELECT
+    c.id
+FROM
+    courses AS c
+WHERE
+    c.program_id = $1
+ORDER BY
+    c.id
+`
+
+func (q *Queries) ListCourseIDsByProgram(ctx context.Context, programID int64) ([]int64, error) {
+	rows, err := q.db.Query(ctx, ListCourseIDsByProgram, programID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []int64
+	for rows.Next() {
+		var id int64
+		if err := rows.Scan(&id); err != nil {
+			return nil, err
+		}
+		items = append(items, id)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
 const ListCoursesByProgramID = `-- name: ListCoursesByProgramID :many
 SELECT
     COUNT(*) OVER () AS total_count,
@@ -83,11 +127,16 @@ SELECT
     c.name,
     c.description,
     c.thumbnail,
+    c.sort_order,
     c.created_at,
     c.updated_at
-FROM courses c
+FROM
-WHERE c.program_id = $1
+    courses c
-ORDER BY c.created_at DESC
+WHERE
+    c.program_id = $1
+ORDER BY
+    c.sort_order ASC,
+    c.id ASC
 LIMIT $2 OFFSET $3
 `
 
@@ -104,6 +153,7 @@ type ListCoursesByProgramIDRow struct {
 	Name        string             `json:"name"`
 	Description pgtype.Text        `json:"description"`
 	Thumbnail   pgtype.Text        `json:"thumbnail"`
+	SortOrder   int32              `json:"sort_order"`
 	CreatedAt   pgtype.Timestamptz `json:"created_at"`
 	UpdatedAt   pgtype.Timestamptz `json:"updated_at"`
 }
@@ -124,6 +174,7 @@ func (q *Queries) ListCoursesByProgramID(ctx context.Context, arg ListCoursesByP
 			&i.Name,
 			&i.Description,
 			&i.Thumbnail,
+			&i.SortOrder,
 			&i.CreatedAt,
 			&i.UpdatedAt,
 		); err != nil {
@@ -143,15 +194,19 @@ SET
     name = COALESCE($1::varchar, name),
     description = COALESCE($2::text, description),
     thumbnail = COALESCE($3::text, thumbnail),
+    sort_order = coalesce($4::int, sort_order),
     updated_at = CURRENT_TIMESTAMP
-WHERE id = $4
+WHERE
-RETURNING id, program_id, name, description, thumbnail, created_at, updated_at
+    id = $5
+RETURNING
+    id, program_id, name, description, thumbnail, created_at, updated_at, sort_order
 `
 
 type UpdateCourseParams struct {
 	Name        pgtype.Text `json:"name"`
 	Description pgtype.Text `json:"description"`
 	Thumbnail   pgtype.Text `json:"thumbnail"`
+	SortOrder   pgtype.Int4 `json:"sort_order"`
 	ID          int64       `json:"id"`
 }
 
@@ -160,6 +215,7 @@ func (q *Queries) UpdateCourse(ctx context.Context, arg UpdateCourseParams) (Cou
 		arg.Name,
 		arg.Description,
 		arg.Thumbnail,
+		arg.SortOrder,
 		arg.ID,
 	)
 	var i Course
@@ -171,6 +227,7 @@ func (q *Queries) UpdateCourse(ctx context.Context, arg UpdateCourseParams) (Cou
 		&i.Thumbnail,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SortOrder,
 	)
 	return i, err
 }

gen/db/lms_lessons.sql.go

@@ -12,9 +12,21 @@ import (
 )
 
 const CreateLesson = `-- name: CreateLesson :one
-INSERT INTO lessons (module_id, title, video_url, thumbnail, description)
+INSERT INTO lessons (module_id, title, video_url, thumbnail, description, sort_order)
-VALUES ($1, $2, $3, $4, $5)
+SELECT
-RETURNING id, module_id, title, video_url, thumbnail, description, created_at, updated_at
+    $1,
+    $2,
+    $3,
+    $4,
+    $5,
+    coalesce((
+        SELECT
+            max(l.sort_order)
+        FROM lessons l
+        WHERE
+            l.module_id = $1), 0) + 1
+RETURNING
+    id, module_id, title, video_url, thumbnail, description, created_at, updated_at, sort_order
 `
 
 type CreateLessonParams struct {
@@ -43,6 +55,7 @@ func (q *Queries) CreateLesson(ctx context.Context, arg CreateLessonParams) (Les
 		&i.Description,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SortOrder,
 	)
 	return i, err
 }
@@ -58,7 +71,7 @@ func (q *Queries) DeleteLesson(ctx context.Context, id int64) error {
 }
 
 const GetLessonByID = `-- name: GetLessonByID :one
-SELECT id, module_id, title, video_url, thumbnail, description, created_at, updated_at
+SELECT id, module_id, title, video_url, thumbnail, description, created_at, updated_at, sort_order
 FROM lessons
 WHERE id = $1
 `
@@ -75,6 +88,7 @@ func (q *Queries) GetLessonByID(ctx context.Context, id int64) (Lesson, error) {
 		&i.Description,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SortOrder,
 	)
 	return i, err
 }
@@ -88,12 +102,18 @@ SELECT
     l.video_url,
     l.thumbnail,
     l.description,
+    l.sort_order,
     l.created_at,
     l.updated_at
-FROM lessons l
+FROM
-WHERE l.module_id = $1
+    lessons l
-ORDER BY l.created_at DESC
+WHERE
-LIMIT $2 OFFSET $3
+    l.module_id = $1
+ORDER BY
+    l.sort_order ASC,
+    l.id ASC
+LIMIT $2
+OFFSET $3
 `
 
 type ListLessonsByModuleIDParams struct {
@@ -110,6 +130,7 @@ type ListLessonsByModuleIDRow struct {
 	VideoUrl    pgtype.Text        `json:"video_url"`
 	Thumbnail   pgtype.Text        `json:"thumbnail"`
 	Description pgtype.Text        `json:"description"`
+	SortOrder   int32              `json:"sort_order"`
 	CreatedAt   pgtype.Timestamptz `json:"created_at"`
 	UpdatedAt   pgtype.Timestamptz `json:"updated_at"`
 }
@@ -131,6 +152,7 @@ func (q *Queries) ListLessonsByModuleID(ctx context.Context, arg ListLessonsByMo
 			&i.VideoUrl,
 			&i.Thumbnail,
 			&i.Description,
+			&i.SortOrder,
 			&i.CreatedAt,
 			&i.UpdatedAt,
 		); err != nil {
@@ -151,9 +173,12 @@ SET
     video_url = COALESCE($2::text, video_url),
     thumbnail = COALESCE($3::text, thumbnail),
     description = COALESCE($4::text, description),
+    sort_order = coalesce($5::int, sort_order),
     updated_at = CURRENT_TIMESTAMP
-WHERE id = $5
+WHERE
-RETURNING id, module_id, title, video_url, thumbnail, description, created_at, updated_at
+    id = $6
+RETURNING
+    id, module_id, title, video_url, thumbnail, description, created_at, updated_at, sort_order
 `
 
 type UpdateLessonParams struct {
@@ -161,6 +186,7 @@ type UpdateLessonParams struct {
 	VideoUrl    pgtype.Text `json:"video_url"`
 	Thumbnail   pgtype.Text `json:"thumbnail"`
 	Description pgtype.Text `json:"description"`
+	SortOrder   pgtype.Int4 `json:"sort_order"`
 	ID          int64       `json:"id"`
 }
 
@@ -170,6 +196,7 @@ func (q *Queries) UpdateLesson(ctx context.Context, arg UpdateLessonParams) (Les
 		arg.VideoUrl,
 		arg.Thumbnail,
 		arg.Description,
+		arg.SortOrder,
 		arg.ID,
 	)
 	var i Lesson
@@ -182,6 +209,7 @@ func (q *Queries) UpdateLesson(ctx context.Context, arg UpdateLessonParams) (Les
 		&i.Description,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SortOrder,
 	)
 	return i, err
 }

gen/db/lms_modules.sql.go

@@ -12,9 +12,21 @@ import (
 )
 
 const CreateModule = `-- name: CreateModule :one
-INSERT INTO modules (program_id, course_id, name, description, icon)
+INSERT INTO modules (program_id, course_id, name, description, icon, sort_order)
-VALUES ($1, $2, $3, $4, $5)
+SELECT
-RETURNING id, program_id, course_id, name, description, icon, created_at, updated_at
+    $1,
+    $2,
+    $3,
+    $4,
+    $5,
+    coalesce((
+        SELECT
+            max(m.sort_order)
+        FROM modules m
+        WHERE
+            m.course_id = $2), 0) + 1
+RETURNING
+    id, program_id, course_id, name, description, icon, created_at, updated_at, sort_order
 `
 
 type CreateModuleParams struct {
@@ -43,6 +55,7 @@ func (q *Queries) CreateModule(ctx context.Context, arg CreateModuleParams) (Mod
 		&i.Icon,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SortOrder,
 	)
 	return i, err
 }
@@ -58,7 +71,7 @@ func (q *Queries) DeleteModule(ctx context.Context, id int64) error {
 }
 
 const GetModuleByID = `-- name: GetModuleByID :one
-SELECT id, program_id, course_id, name, description, icon, created_at, updated_at
+SELECT id, program_id, course_id, name, description, icon, created_at, updated_at, sort_order
 FROM modules
 WHERE id = $1
 `
@@ -75,10 +88,42 @@ func (q *Queries) GetModuleByID(ctx context.Context, id int64) (Module, error) {
 		&i.Icon,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SortOrder,
 	)
 	return i, err
 }
 
+const ListModuleIDsByCourse = `-- name: ListModuleIDsByCourse :many
+SELECT
+    m.id
+FROM
+    modules AS m
+WHERE
+    m.course_id = $1
+ORDER BY
+    m.id
+`
+
+func (q *Queries) ListModuleIDsByCourse(ctx context.Context, courseID int64) ([]int64, error) {
+	rows, err := q.db.Query(ctx, ListModuleIDsByCourse, courseID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []int64
+	for rows.Next() {
+		var id int64
+		if err := rows.Scan(&id); err != nil {
+			return nil, err
+		}
+		items = append(items, id)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
 const ListModulesByProgramAndCourse = `-- name: ListModulesByProgramAndCourse :many
 SELECT
     COUNT(*) OVER () AS total_count,
@@ -88,13 +133,19 @@ SELECT
     m.name,
     m.description,
     m.icon,
+    m.sort_order,
     m.created_at,
     m.updated_at
-FROM modules m
+FROM
-WHERE m.program_id = $1
+    modules m
-  AND m.course_id = $2
+WHERE
-ORDER BY m.created_at DESC
+    m.program_id = $1
-LIMIT $3 OFFSET $4
+    AND m.course_id = $2
+ORDER BY
+    m.sort_order ASC,
+    m.id ASC
+LIMIT $3
+OFFSET $4
 `
 
 type ListModulesByProgramAndCourseParams struct {
@@ -112,6 +163,7 @@ type ListModulesByProgramAndCourseRow struct {
 	Name        string             `json:"name"`
 	Description pgtype.Text        `json:"description"`
 	Icon        pgtype.Text        `json:"icon"`
+	SortOrder   int32              `json:"sort_order"`
 	CreatedAt   pgtype.Timestamptz `json:"created_at"`
 	UpdatedAt   pgtype.Timestamptz `json:"updated_at"`
 }
@@ -138,6 +190,7 @@ func (q *Queries) ListModulesByProgramAndCourse(ctx context.Context, arg ListMod
 			&i.Name,
 			&i.Description,
 			&i.Icon,
+			&i.SortOrder,
 			&i.CreatedAt,
 			&i.UpdatedAt,
 		); err != nil {
@@ -157,15 +210,19 @@ SET
     name = COALESCE($1::varchar, name),
     description = COALESCE($2::text, description),
     icon = COALESCE($3::text, icon),
+    sort_order = coalesce($4::int, sort_order),
     updated_at = CURRENT_TIMESTAMP
-WHERE id = $4
+WHERE
-RETURNING id, program_id, course_id, name, description, icon, created_at, updated_at
+    id = $5
+RETURNING
+    id, program_id, course_id, name, description, icon, created_at, updated_at, sort_order
 `
 
 type UpdateModuleParams struct {
 	Name        pgtype.Text `json:"name"`
 	Description pgtype.Text `json:"description"`
 	Icon        pgtype.Text `json:"icon"`
+	SortOrder   pgtype.Int4 `json:"sort_order"`
 	ID          int64       `json:"id"`
 }
 
@@ -174,6 +231,7 @@ func (q *Queries) UpdateModule(ctx context.Context, arg UpdateModuleParams) (Mod
 		arg.Name,
 		arg.Description,
 		arg.Icon,
+		arg.SortOrder,
 		arg.ID,
 	)
 	var i Module
@@ -186,6 +244,7 @@ func (q *Queries) UpdateModule(ctx context.Context, arg UpdateModuleParams) (Mod
 		&i.Icon,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SortOrder,
 	)
 	return i, err
 }

gen/db/lms_progress.sql.go

@@ -0,0 +1,613 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.30.0
+// source: lms_progress.sql
+
+package dbgen
+
+import (
+	"context"
+)
+
+const CountCoursesInProgram = `-- name: CountCoursesInProgram :one
+SELECT
+    count(*)::int AS n
+FROM
+    courses
+WHERE
+    program_id = $1
+`
+
+func (q *Queries) CountCoursesInProgram(ctx context.Context, programID int64) (int32, error) {
+	row := q.db.QueryRow(ctx, CountCoursesInProgram, programID)
+	var n int32
+	err := row.Scan(&n)
+	return n, err
+}
+
+const CountLessonsInCourse = `-- name: CountLessonsInCourse :one
+SELECT
+    count(*)::int AS n
+FROM
+    lessons l
+    INNER JOIN modules m ON m.id = l.module_id
+WHERE
+    m.course_id = $1
+`
+
+// Lesson-based progress within a course (all modules).
+func (q *Queries) CountLessonsInCourse(ctx context.Context, courseID int64) (int32, error) {
+	row := q.db.QueryRow(ctx, CountLessonsInCourse, courseID)
+	var n int32
+	err := row.Scan(&n)
+	return n, err
+}
+
+const CountLessonsInModule = `-- name: CountLessonsInModule :one
+SELECT
+    count(*)::int AS n
+FROM
+    lessons
+WHERE
+    module_id = $1
+`
+
+func (q *Queries) CountLessonsInModule(ctx context.Context, moduleID int64) (int32, error) {
+	row := q.db.QueryRow(ctx, CountLessonsInModule, moduleID)
+	var n int32
+	err := row.Scan(&n)
+	return n, err
+}
+
+const CountLessonsInProgram = `-- name: CountLessonsInProgram :one
+SELECT
+    count(*)::int AS n
+FROM
+    lessons l
+    INNER JOIN modules m ON m.id = l.module_id
+    INNER JOIN courses c ON c.id = m.course_id
+WHERE
+    c.program_id = $1
+`
+
+// Lesson-based progress within a program (all courses).
+func (q *Queries) CountLessonsInProgram(ctx context.Context, programID int64) (int32, error) {
+	row := q.db.QueryRow(ctx, CountLessonsInProgram, programID)
+	var n int32
+	err := row.Scan(&n)
+	return n, err
+}
+
+const CountModulesInCourse = `-- name: CountModulesInCourse :one
+SELECT
+    count(*)::int AS n
+FROM
+    modules
+WHERE
+    course_id = $1
+`
+
+func (q *Queries) CountModulesInCourse(ctx context.Context, courseID int64) (int32, error) {
+	row := q.db.QueryRow(ctx, CountModulesInCourse, courseID)
+	var n int32
+	err := row.Scan(&n)
+	return n, err
+}
+
+const CountUserCompletedCoursesInProgram = `-- name: CountUserCompletedCoursesInProgram :one
+SELECT
+    count(*)::int AS n
+FROM
+    lms_user_course_progress ucp
+    INNER JOIN courses c ON c.id = ucp.course_id
+WHERE
+    c.program_id = $1
+    AND ucp.user_id = $2
+`
+
+type CountUserCompletedCoursesInProgramParams struct {
+	ProgramID int64 `json:"program_id"`
+	UserID    int64 `json:"user_id"`
+}
+
+func (q *Queries) CountUserCompletedCoursesInProgram(ctx context.Context, arg CountUserCompletedCoursesInProgramParams) (int32, error) {
+	row := q.db.QueryRow(ctx, CountUserCompletedCoursesInProgram, arg.ProgramID, arg.UserID)
+	var n int32
+	err := row.Scan(&n)
+	return n, err
+}
+
+const CountUserCompletedLessonsInCourse = `-- name: CountUserCompletedLessonsInCourse :one
+SELECT
+    count(*)::int AS n
+FROM
+    lms_user_lesson_progress ulp
+    INNER JOIN lessons l ON l.id = ulp.lesson_id
+    INNER JOIN modules m ON m.id = l.module_id
+WHERE
+    m.course_id = $1
+    AND ulp.user_id = $2
+`
+
+type CountUserCompletedLessonsInCourseParams struct {
+	CourseID int64 `json:"course_id"`
+	UserID   int64 `json:"user_id"`
+}
+
+func (q *Queries) CountUserCompletedLessonsInCourse(ctx context.Context, arg CountUserCompletedLessonsInCourseParams) (int32, error) {
+	row := q.db.QueryRow(ctx, CountUserCompletedLessonsInCourse, arg.CourseID, arg.UserID)
+	var n int32
+	err := row.Scan(&n)
+	return n, err
+}
+
+const CountUserCompletedLessonsInModule = `-- name: CountUserCompletedLessonsInModule :one
+SELECT
+    count(*)::int AS n
+FROM
+    lms_user_lesson_progress ulp
+    INNER JOIN lessons l ON l.id = ulp.lesson_id
+WHERE
+    l.module_id = $1
+    AND ulp.user_id = $2
+`
+
+type CountUserCompletedLessonsInModuleParams struct {
+	ModuleID int64 `json:"module_id"`
+	UserID   int64 `json:"user_id"`
+}
+
+func (q *Queries) CountUserCompletedLessonsInModule(ctx context.Context, arg CountUserCompletedLessonsInModuleParams) (int32, error) {
+	row := q.db.QueryRow(ctx, CountUserCompletedLessonsInModule, arg.ModuleID, arg.UserID)
+	var n int32
+	err := row.Scan(&n)
+	return n, err
+}
+
+const CountUserCompletedLessonsInProgram = `-- name: CountUserCompletedLessonsInProgram :one
+SELECT
+    count(*)::int AS n
+FROM
+    lms_user_lesson_progress ulp
+    INNER JOIN lessons l ON l.id = ulp.lesson_id
+    INNER JOIN modules m ON m.id = l.module_id
+    INNER JOIN courses c ON c.id = m.course_id
+WHERE
+    c.program_id = $1
+    AND ulp.user_id = $2
+`
+
+type CountUserCompletedLessonsInProgramParams struct {
+	ProgramID int64 `json:"program_id"`
+	UserID    int64 `json:"user_id"`
+}
+
+func (q *Queries) CountUserCompletedLessonsInProgram(ctx context.Context, arg CountUserCompletedLessonsInProgramParams) (int32, error) {
+	row := q.db.QueryRow(ctx, CountUserCompletedLessonsInProgram, arg.ProgramID, arg.UserID)
+	var n int32
+	err := row.Scan(&n)
+	return n, err
+}
+
+const CountUserCompletedModulesInCourse = `-- name: CountUserCompletedModulesInCourse :one
+SELECT
+    count(*)::int AS n
+FROM
+    lms_user_module_progress ump
+    INNER JOIN modules m ON m.id = ump.module_id
+WHERE
+    m.course_id = $1
+    AND ump.user_id = $2
+`
+
+type CountUserCompletedModulesInCourseParams struct {
+	CourseID int64 `json:"course_id"`
+	UserID   int64 `json:"user_id"`
+}
+
+func (q *Queries) CountUserCompletedModulesInCourse(ctx context.Context, arg CountUserCompletedModulesInCourseParams) (int32, error) {
+	row := q.db.QueryRow(ctx, CountUserCompletedModulesInCourse, arg.CourseID, arg.UserID)
+	var n int32
+	err := row.Scan(&n)
+	return n, err
+}
+
+const GetPreviousCourseInProgram = `-- name: GetPreviousCourseInProgram :one
+SELECT
+    c2.id, c2.program_id, c2.name, c2.description, c2.thumbnail, c2.created_at, c2.updated_at, c2.sort_order
+FROM
+    courses AS c1
+    INNER JOIN courses AS c2 ON c2.program_id = c1.program_id
+    AND c2.sort_order = c1.sort_order - 1
+WHERE
+    c1.id = $1
+`
+
+func (q *Queries) GetPreviousCourseInProgram(ctx context.Context, id int64) (Course, error) {
+	row := q.db.QueryRow(ctx, GetPreviousCourseInProgram, id)
+	var i Course
+	err := row.Scan(
+		&i.ID,
+		&i.ProgramID,
+		&i.Name,
+		&i.Description,
+		&i.Thumbnail,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+		&i.SortOrder,
+	)
+	return i, err
+}
+
+const GetPreviousLessonInModule = `-- name: GetPreviousLessonInModule :one
+SELECT
+    l2.id, l2.module_id, l2.title, l2.video_url, l2.thumbnail, l2.description, l2.created_at, l2.updated_at, l2.sort_order
+FROM
+    lessons AS l1
+    INNER JOIN lessons AS l2 ON l2.module_id = l1.module_id
+    AND l2.sort_order = l1.sort_order - 1
+WHERE
+    l1.id = $1
+`
+
+func (q *Queries) GetPreviousLessonInModule(ctx context.Context, id int64) (Lesson, error) {
+	row := q.db.QueryRow(ctx, GetPreviousLessonInModule, id)
+	var i Lesson
+	err := row.Scan(
+		&i.ID,
+		&i.ModuleID,
+		&i.Title,
+		&i.VideoUrl,
+		&i.Thumbnail,
+		&i.Description,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+		&i.SortOrder,
+	)
+	return i, err
+}
+
+const GetPreviousModuleInCourse = `-- name: GetPreviousModuleInCourse :one
+SELECT
+    m2.id, m2.program_id, m2.course_id, m2.name, m2.description, m2.icon, m2.created_at, m2.updated_at, m2.sort_order
+FROM
+    modules AS m1
+    INNER JOIN modules AS m2 ON m2.course_id = m1.course_id
+    AND m2.sort_order = m1.sort_order - 1
+WHERE
+    m1.id = $1
+`
+
+func (q *Queries) GetPreviousModuleInCourse(ctx context.Context, id int64) (Module, error) {
+	row := q.db.QueryRow(ctx, GetPreviousModuleInCourse, id)
+	var i Module
+	err := row.Scan(
+		&i.ID,
+		&i.ProgramID,
+		&i.CourseID,
+		&i.Name,
+		&i.Description,
+		&i.Icon,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+		&i.SortOrder,
+	)
+	return i, err
+}
+
+const GetPreviousProgram = `-- name: GetPreviousProgram :one
+SELECT
+    p2.id, p2.name, p2.description, p2.thumbnail, p2.created_at, p2.updated_at, p2.sort_order
+FROM
+    programs AS p1
+    INNER JOIN programs AS p2 ON p2.sort_order = p1.sort_order - 1
+WHERE
+    p1.id = $1
+`
+
+func (q *Queries) GetPreviousProgram(ctx context.Context, id int64) (Program, error) {
+	row := q.db.QueryRow(ctx, GetPreviousProgram, id)
+	var i Program
+	err := row.Scan(
+		&i.ID,
+		&i.Name,
+		&i.Description,
+		&i.Thumbnail,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+		&i.SortOrder,
+	)
+	return i, err
+}
+
+const InsertUserCourseProgress = `-- name: InsertUserCourseProgress :exec
+INSERT INTO lms_user_course_progress (user_id, course_id)
+    VALUES ($1, $2)
+ON CONFLICT (user_id, course_id)
+    DO NOTHING
+`
+
+type InsertUserCourseProgressParams struct {
+	UserID   int64 `json:"user_id"`
+	CourseID int64 `json:"course_id"`
+}
+
+func (q *Queries) InsertUserCourseProgress(ctx context.Context, arg InsertUserCourseProgressParams) error {
+	_, err := q.db.Exec(ctx, InsertUserCourseProgress, arg.UserID, arg.CourseID)
+	return err
+}
+
+const InsertUserLessonProgress = `-- name: InsertUserLessonProgress :exec
+INSERT INTO lms_user_lesson_progress (user_id, lesson_id)
+    VALUES ($1, $2)
+ON CONFLICT (user_id, lesson_id)
+    DO NOTHING
+`
+
+type InsertUserLessonProgressParams struct {
+	UserID   int64 `json:"user_id"`
+	LessonID int64 `json:"lesson_id"`
+}
+
+func (q *Queries) InsertUserLessonProgress(ctx context.Context, arg InsertUserLessonProgressParams) error {
+	_, err := q.db.Exec(ctx, InsertUserLessonProgress, arg.UserID, arg.LessonID)
+	return err
+}
+
+const InsertUserModuleProgress = `-- name: InsertUserModuleProgress :exec
+INSERT INTO lms_user_module_progress (user_id, module_id)
+    VALUES ($1, $2)
+ON CONFLICT (user_id, module_id)
+    DO NOTHING
+`
+
+type InsertUserModuleProgressParams struct {
+	UserID   int64 `json:"user_id"`
+	ModuleID int64 `json:"module_id"`
+}
+
+func (q *Queries) InsertUserModuleProgress(ctx context.Context, arg InsertUserModuleProgressParams) error {
+	_, err := q.db.Exec(ctx, InsertUserModuleProgress, arg.UserID, arg.ModuleID)
+	return err
+}
+
+const InsertUserProgramProgress = `-- name: InsertUserProgramProgress :exec
+INSERT INTO lms_user_program_progress (user_id, program_id)
+    VALUES ($1, $2)
+ON CONFLICT (user_id, program_id)
+    DO NOTHING
+`
+
+type InsertUserProgramProgressParams struct {
+	UserID    int64 `json:"user_id"`
+	ProgramID int64 `json:"program_id"`
+}
+
+func (q *Queries) InsertUserProgramProgress(ctx context.Context, arg InsertUserProgramProgressParams) error {
+	_, err := q.db.Exec(ctx, InsertUserProgramProgress, arg.UserID, arg.ProgramID)
+	return err
+}
+
+const ListLMSCompletedCourseIDsByUser = `-- name: ListLMSCompletedCourseIDsByUser :many
+SELECT
+    ucp.course_id
+FROM
+    lms_user_course_progress AS ucp
+WHERE
+    ucp.user_id = $1
+ORDER BY
+    ucp.completed_at ASC,
+    ucp.course_id ASC
+`
+
+func (q *Queries) ListLMSCompletedCourseIDsByUser(ctx context.Context, userID int64) ([]int64, error) {
+	rows, err := q.db.Query(ctx, ListLMSCompletedCourseIDsByUser, userID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []int64
+	for rows.Next() {
+		var course_id int64
+		if err := rows.Scan(&course_id); err != nil {
+			return nil, err
+		}
+		items = append(items, course_id)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const ListLMSCompletedLessonIDsByUser = `-- name: ListLMSCompletedLessonIDsByUser :many
+SELECT
+    ulp.lesson_id
+FROM
+    lms_user_lesson_progress AS ulp
+WHERE
+    ulp.user_id = $1
+ORDER BY
+    ulp.completed_at ASC,
+    ulp.lesson_id ASC
+`
+
+func (q *Queries) ListLMSCompletedLessonIDsByUser(ctx context.Context, userID int64) ([]int64, error) {
+	rows, err := q.db.Query(ctx, ListLMSCompletedLessonIDsByUser, userID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []int64
+	for rows.Next() {
+		var lesson_id int64
+		if err := rows.Scan(&lesson_id); err != nil {
+			return nil, err
+		}
+		items = append(items, lesson_id)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const ListLMSCompletedModuleIDsByUser = `-- name: ListLMSCompletedModuleIDsByUser :many
+SELECT
+    ump.module_id
+FROM
+    lms_user_module_progress AS ump
+WHERE
+    ump.user_id = $1
+ORDER BY
+    ump.completed_at ASC,
+    ump.module_id ASC
+`
+
+func (q *Queries) ListLMSCompletedModuleIDsByUser(ctx context.Context, userID int64) ([]int64, error) {
+	rows, err := q.db.Query(ctx, ListLMSCompletedModuleIDsByUser, userID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []int64
+	for rows.Next() {
+		var module_id int64
+		if err := rows.Scan(&module_id); err != nil {
+			return nil, err
+		}
+		items = append(items, module_id)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const ListLMSCompletedProgramIDsByUser = `-- name: ListLMSCompletedProgramIDsByUser :many
+SELECT
+    upp.program_id
+FROM
+    lms_user_program_progress AS upp
+WHERE
+    upp.user_id = $1
+ORDER BY
+    upp.completed_at ASC,
+    upp.program_id ASC
+`
+
+func (q *Queries) ListLMSCompletedProgramIDsByUser(ctx context.Context, userID int64) ([]int64, error) {
+	rows, err := q.db.Query(ctx, ListLMSCompletedProgramIDsByUser, userID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []int64
+	for rows.Next() {
+		var program_id int64
+		if err := rows.Scan(&program_id); err != nil {
+			return nil, err
+		}
+		items = append(items, program_id)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const UserHasCourseProgress = `-- name: UserHasCourseProgress :one
+SELECT
+    EXISTS (
+        SELECT
+            1
+        FROM
+            lms_user_course_progress
+        WHERE
+            user_id = $1
+            AND course_id = $2) AS v
+`
+
+type UserHasCourseProgressParams struct {
+	UserID   int64 `json:"user_id"`
+	CourseID int64 `json:"course_id"`
+}
+
+func (q *Queries) UserHasCourseProgress(ctx context.Context, arg UserHasCourseProgressParams) (bool, error) {
+	row := q.db.QueryRow(ctx, UserHasCourseProgress, arg.UserID, arg.CourseID)
+	var v bool
+	err := row.Scan(&v)
+	return v, err
+}
+
+const UserHasLessonProgress = `-- name: UserHasLessonProgress :one
+SELECT
+    EXISTS (
+        SELECT
+            1
+        FROM
+            lms_user_lesson_progress
+        WHERE
+            user_id = $1
+            AND lesson_id = $2) AS v
+`
+
+type UserHasLessonProgressParams struct {
+	UserID   int64 `json:"user_id"`
+	LessonID int64 `json:"lesson_id"`
+}
+
+func (q *Queries) UserHasLessonProgress(ctx context.Context, arg UserHasLessonProgressParams) (bool, error) {
+	row := q.db.QueryRow(ctx, UserHasLessonProgress, arg.UserID, arg.LessonID)
+	var v bool
+	err := row.Scan(&v)
+	return v, err
+}
+
+const UserHasModuleProgress = `-- name: UserHasModuleProgress :one
+SELECT
+    EXISTS (
+        SELECT
+            1
+        FROM
+            lms_user_module_progress
+        WHERE
+            user_id = $1
+            AND module_id = $2) AS v
+`
+
+type UserHasModuleProgressParams struct {
+	UserID   int64 `json:"user_id"`
+	ModuleID int64 `json:"module_id"`
+}
+
+func (q *Queries) UserHasModuleProgress(ctx context.Context, arg UserHasModuleProgressParams) (bool, error) {
+	row := q.db.QueryRow(ctx, UserHasModuleProgress, arg.UserID, arg.ModuleID)
+	var v bool
+	err := row.Scan(&v)
+	return v, err
+}
+
+const UserHasProgramProgress = `-- name: UserHasProgramProgress :one
+SELECT
+    EXISTS (
+        SELECT
+            1
+        FROM
+            lms_user_program_progress
+        WHERE
+            user_id = $1
+            AND program_id = $2) AS v
+`
+
+type UserHasProgramProgressParams struct {
+	UserID    int64 `json:"user_id"`
+	ProgramID int64 `json:"program_id"`
+}
+
+func (q *Queries) UserHasProgramProgress(ctx context.Context, arg UserHasProgramProgressParams) (bool, error) {
+	row := q.db.QueryRow(ctx, UserHasProgramProgress, arg.UserID, arg.ProgramID)
+	var v bool
+	err := row.Scan(&v)
+	return v, err
+}

gen/db/models.go

@@ -30,6 +30,7 @@ type Course struct {
 	Thumbnail   pgtype.Text        `json:"thumbnail"`
 	CreatedAt   pgtype.Timestamptz `json:"created_at"`
 	UpdatedAt   pgtype.Timestamptz `json:"updated_at"`
+	SortOrder   int32              `json:"sort_order"`
 }
 
 type Device struct {
@@ -58,6 +59,7 @@ type Lesson struct {
 	Description pgtype.Text        `json:"description"`
 	CreatedAt   pgtype.Timestamptz `json:"created_at"`
 	UpdatedAt   pgtype.Timestamptz `json:"updated_at"`
+	SortOrder   int32              `json:"sort_order"`
 }
 
 type LevelToSubCourse struct {
@@ -80,6 +82,30 @@ type LmsPractice struct {
 	UpdatedAt        pgtype.Timestamptz `json:"updated_at"`
 }
 
+type LmsUserCourseProgress struct {
+	UserID      int64              `json:"user_id"`
+	CourseID    int64              `json:"course_id"`
+	CompletedAt pgtype.Timestamptz `json:"completed_at"`
+}
+
+type LmsUserLessonProgress struct {
+	UserID      int64              `json:"user_id"`
+	LessonID    int64              `json:"lesson_id"`
+	CompletedAt pgtype.Timestamptz `json:"completed_at"`
+}
+
+type LmsUserModuleProgress struct {
+	UserID      int64              `json:"user_id"`
+	ModuleID    int64              `json:"module_id"`
+	CompletedAt pgtype.Timestamptz `json:"completed_at"`
+}
+
+type LmsUserProgramProgress struct {
+	UserID      int64              `json:"user_id"`
+	ProgramID   int64              `json:"program_id"`
+	CompletedAt pgtype.Timestamptz `json:"completed_at"`
+}
+
 type Module struct {
 	ID          int64              `json:"id"`
 	ProgramID   int64              `json:"program_id"`
@@ -89,6 +115,7 @@ type Module struct {
 	Icon        pgtype.Text        `json:"icon"`
 	CreatedAt   pgtype.Timestamptz `json:"created_at"`
 	UpdatedAt   pgtype.Timestamptz `json:"updated_at"`
+	SortOrder   int32              `json:"sort_order"`
 }
 
 type ModuleToSubCourse struct {
@@ -159,6 +186,7 @@ type Program struct {
 	Thumbnail   pgtype.Text        `json:"thumbnail"`
 	CreatedAt   pgtype.Timestamptz `json:"created_at"`
 	UpdatedAt   pgtype.Timestamptz `json:"updated_at"`
+	SortOrder   int32              `json:"sort_order"`
 }
 
 type Question struct {

gen/db/programs.sql.go

@@ -12,9 +12,17 @@ import (
 )
 
 const CreateProgram = `-- name: CreateProgram :one
-INSERT INTO programs (name, description, thumbnail)
+INSERT INTO programs (name, description, thumbnail, sort_order)
-VALUES ($1, $2, $3)
+SELECT
-RETURNING id, name, description, thumbnail, created_at, updated_at
+    $1,
+    $2,
+    $3,
+    coalesce((
+        SELECT
+            max(p.sort_order)
+        FROM programs AS p), 0) + 1
+RETURNING
+    id, name, description, thumbnail, created_at, updated_at, sort_order
 `
 
 type CreateProgramParams struct {
@@ -33,6 +41,7 @@ func (q *Queries) CreateProgram(ctx context.Context, arg CreateProgramParams) (P
 		&i.Thumbnail,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SortOrder,
 	)
 	return i, err
 }
@@ -48,7 +57,7 @@ func (q *Queries) DeleteProgram(ctx context.Context, id int64) error {
 }
 
 const GetProgramByID = `-- name: GetProgramByID :one
-SELECT id, name, description, thumbnail, created_at, updated_at
+SELECT id, name, description, thumbnail, created_at, updated_at, sort_order
 FROM programs
 WHERE id = $1
 `
@@ -63,10 +72,40 @@ func (q *Queries) GetProgramByID(ctx context.Context, id int64) (Program, error)
 		&i.Thumbnail,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SortOrder,
 	)
 	return i, err
 }
 
+const ListAllProgramIDs = `-- name: ListAllProgramIDs :many
+SELECT
+    p.id
+FROM
+    programs AS p
+ORDER BY
+    p.id
+`
+
+func (q *Queries) ListAllProgramIDs(ctx context.Context) ([]int64, error) {
+	rows, err := q.db.Query(ctx, ListAllProgramIDs)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []int64
+	for rows.Next() {
+		var id int64
+		if err := rows.Scan(&id); err != nil {
+			return nil, err
+		}
+		items = append(items, id)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
 const ListPrograms = `-- name: ListPrograms :many
 SELECT
     COUNT(*) OVER () AS total_count,
@@ -74,10 +113,11 @@ SELECT
     p.name,
     p.description,
     p.thumbnail,
+    p.sort_order,
     p.created_at,
     p.updated_at
 FROM programs p
-ORDER BY p.created_at DESC
+ORDER BY p.sort_order ASC, p.id ASC
 LIMIT $1 OFFSET $2
 `
 
@@ -92,6 +132,7 @@ type ListProgramsRow struct {
 	Name        string             `json:"name"`
 	Description pgtype.Text        `json:"description"`
 	Thumbnail   pgtype.Text        `json:"thumbnail"`
+	SortOrder   int32              `json:"sort_order"`
 	CreatedAt   pgtype.Timestamptz `json:"created_at"`
 	UpdatedAt   pgtype.Timestamptz `json:"updated_at"`
 }
@@ -111,6 +152,7 @@ func (q *Queries) ListPrograms(ctx context.Context, arg ListProgramsParams) ([]L
 			&i.Name,
 			&i.Description,
 			&i.Thumbnail,
+			&i.SortOrder,
 			&i.CreatedAt,
 			&i.UpdatedAt,
 		); err != nil {
@@ -130,15 +172,19 @@ SET
     name = COALESCE($1::varchar, name),
     description = COALESCE($2::text, description),
     thumbnail = COALESCE($3::text, thumbnail),
+    sort_order = coalesce($4::int, sort_order),
     updated_at = CURRENT_TIMESTAMP
-WHERE id = $4
+WHERE
-RETURNING id, name, description, thumbnail, created_at, updated_at
+    id = $5
+RETURNING
+    id, name, description, thumbnail, created_at, updated_at, sort_order
 `
 
 type UpdateProgramParams struct {
 	Name        pgtype.Text `json:"name"`
 	Description pgtype.Text `json:"description"`
 	Thumbnail   pgtype.Text `json:"thumbnail"`
+	SortOrder   pgtype.Int4 `json:"sort_order"`
 	ID          int64       `json:"id"`
 }
 
@@ -147,6 +193,7 @@ func (q *Queries) UpdateProgram(ctx context.Context, arg UpdateProgramParams) (P
 		arg.Name,
 		arg.Description,
 		arg.Thumbnail,
+		arg.SortOrder,
 		arg.ID,
 	)
 	var i Program
@@ -157,6 +204,7 @@ func (q *Queries) UpdateProgram(ctx context.Context, arg UpdateProgramParams) (P
 		&i.Thumbnail,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SortOrder,
 	)
 	return i, err
 }

internal/domain/course.go

@@ -13,8 +13,10 @@ type Course struct {
 	Name        string     `json:"name"`
 	Description *string    `json:"description,omitempty"`
 	Thumbnail   *string    `json:"thumbnail,omitempty"`
+	SortOrder   int        `json:"sort_order"`
 	CreatedAt   time.Time  `json:"created_at"`
 	UpdatedAt   *time.Time `json:"updated_at,omitempty"`
+	Access      *LMSEntityAccess `json:"access,omitempty"`
 }
 
 type CreateCourseInput struct {
@@ -27,4 +29,5 @@ type UpdateCourseInput struct {
 	Name        *string `json:"name,omitempty"`
 	Description *string `json:"description,omitempty"`
 	Thumbnail   *string `json:"thumbnail,omitempty"`
+	SortOrder   *int    `json:"sort_order,omitempty"`
 }

internal/domain/lesson.go

@@ -10,8 +10,10 @@ type Lesson struct {
 	VideoURL    *string    `json:"video_url,omitempty"`
 	Thumbnail   *string    `json:"thumbnail,omitempty"`
 	Description *string    `json:"description,omitempty"`
+	SortOrder   int        `json:"sort_order"`
 	CreatedAt   time.Time  `json:"created_at"`
 	UpdatedAt   *time.Time `json:"updated_at,omitempty"`
+	Access      *LMSEntityAccess `json:"access,omitempty"`
 }
 
 type CreateLessonInput struct {
@@ -26,4 +28,5 @@ type UpdateLessonInput struct {
 	VideoURL    *string `json:"video_url,omitempty"`
 	Thumbnail   *string `json:"thumbnail,omitempty"`
 	Description *string `json:"description,omitempty"`
+	SortOrder   *int    `json:"sort_order,omitempty"`
 }

internal/domain/lms_access.go

@@ -0,0 +1,22 @@
+package domain
+
+// LMSEntityAccess describes learner gating for a program, course, module, or lesson.
+// It is omitted (nil) for non-learner roles in API responses.
+// Progress fields count completed lessons vs total lessons in that entity’s scope (lesson: 0 or 1 of 1).
+type LMSEntityAccess struct {
+	IsAccessible     bool   `json:"is_accessible"`
+	IsCompleted      bool   `json:"is_completed"`
+	Reason           string `json:"reason,omitempty"`
+	CompletedCount   int    `json:"completed_count"`
+	TotalCount       int    `json:"total_count"`
+	ProgressPercent  int    `json:"progress_percent"`
+}
+
+// LMSUserProgress lists entity IDs the authenticated user has fully completed
+// (lessons as marked complete; module/course/program when rollup conditions were met).
+type LMSUserProgress struct {
+	LessonIDs  []int64 `json:"lesson_ids"`
+	ModuleIDs  []int64 `json:"module_ids"`
+	CourseIDs  []int64 `json:"course_ids"`
+	ProgramIDs []int64 `json:"program_ids"`
+}

internal/domain/module.go

@@ -10,8 +10,10 @@ type Module struct {
 	Name        string     `json:"name"`
 	Description *string    `json:"description,omitempty"`
 	Icon        *string    `json:"icon,omitempty"`
+	SortOrder   int        `json:"sort_order"`
 	CreatedAt   time.Time  `json:"created_at"`
 	UpdatedAt   *time.Time `json:"updated_at,omitempty"`
+	Access      *LMSEntityAccess `json:"access,omitempty"`
 }
 
 type CreateModuleInput struct {
@@ -24,4 +26,5 @@ type UpdateModuleInput struct {
 	Name        *string `json:"name,omitempty"`
 	Description *string `json:"description,omitempty"`
 	Icon        *string `json:"icon,omitempty"`
+	SortOrder   *int    `json:"sort_order,omitempty"`
 }

internal/domain/program.go

@@ -8,8 +8,10 @@ type Program struct {
 	Name        string     `json:"name"`
 	Description *string    `json:"description,omitempty"`
 	Thumbnail   *string    `json:"thumbnail,omitempty"`
+	SortOrder   int        `json:"sort_order"`
 	CreatedAt   time.Time  `json:"created_at"`
 	UpdatedAt   *time.Time `json:"updated_at,omitempty"`
+	Access      *LMSEntityAccess `json:"access,omitempty"`
 }
 
 type CreateProgramInput struct {
@@ -22,4 +24,5 @@ type UpdateProgramInput struct {
 	Name        *string `json:"name,omitempty"`
 	Description *string `json:"description,omitempty"`
 	Thumbnail   *string `json:"thumbnail,omitempty"`
+	SortOrder   *int    `json:"sort_order,omitempty"`
 }

internal/domain/reorder.go

@@ -0,0 +1,46 @@
+package domain
+
+import (
+	"errors"
+	"fmt"
+	"sort"
+)
+
+// ErrReorderInvalidIDSet means ordered_ids is not an exact permutation of the current entities in scope.
+var ErrReorderInvalidIDSet = errors.New("ordered_ids must list every id in this scope exactly once, with no duplicates")
+
+// ReorderIDsRequest is the body for batch reorder endpoints (drag-and-drop UI).
+// Send "ordered_ids": [] in display order. Must include every id in that scope (use GET list) when there is at least one entity.
+type ReorderIDsRequest struct {
+	OrderedIDs []int64 `json:"ordered_ids"`
+}
+
+// ValidateReorderPermutation checks that ordered contains the same multiset of ids as expected (new order vs current scope).
+func ValidateReorderPermutation(ordered, expected []int64) error {
+	if len(expected) == 0 {
+		if len(ordered) == 0 {
+			return nil
+		}
+		return fmt.Errorf("%w: no entities exist in this scope", ErrReorderInvalidIDSet)
+	}
+	if len(ordered) != len(expected) {
+		return fmt.Errorf("%w: want %d ids, got %d", ErrReorderInvalidIDSet, len(expected), len(ordered))
+	}
+	seen := make(map[int64]struct{}, len(ordered))
+	for _, id := range ordered {
+		if _, dup := seen[id]; dup {
+			return fmt.Errorf("%w: duplicate id %d", ErrReorderInvalidIDSet, id)
+		}
+		seen[id] = struct{}{}
+	}
+	a := append([]int64(nil), expected...)
+	b := append([]int64(nil), ordered...)
+	sort.Slice(a, func(i, j int) bool { return a[i] < a[j] })
+	sort.Slice(b, func(i, j int) bool { return b[i] < b[j] })
+	for i := range a {
+		if a[i] != b[i] {
+			return fmt.Errorf("%w: id set does not match current scope", ErrReorderInvalidIDSet)
+		}
+	}
+	return nil
+}

internal/ports/lms_course.go

@@ -9,6 +9,8 @@ type CourseStore interface {
 	CreateCourse(ctx context.Context, programID int64, input domain.CreateCourseInput) (domain.Course, error)
 	GetCourseByID(ctx context.Context, id int64) (domain.Course, error)
 	ListCoursesByProgramID(ctx context.Context, programID int64, limit, offset int32) ([]domain.Course, int64, error)
+	ListCourseIDsByProgram(ctx context.Context, programID int64) ([]int64, error)
+	ReorderCoursesInProgram(ctx context.Context, programID int64, orderedIDs []int64) error
 	UpdateCourse(ctx context.Context, id int64, input domain.UpdateCourseInput) (domain.Course, error)
 	DeleteCourse(ctx context.Context, id int64) error
 }

internal/ports/lms_module.go

@@ -9,6 +9,8 @@ type ModuleStore interface {
 	CreateModule(ctx context.Context, programID, courseID int64, input domain.CreateModuleInput) (domain.Module, error)
 	GetModuleByID(ctx context.Context, id int64) (domain.Module, error)
 	ListModulesByProgramAndCourse(ctx context.Context, programID, courseID int64, limit, offset int32) ([]domain.Module, int64, error)
+	ListModuleIDsByCourse(ctx context.Context, courseID int64) ([]int64, error)
+	ReorderModulesInCourse(ctx context.Context, courseID int64, orderedIDs []int64) error
 	UpdateModule(ctx context.Context, id int64, input domain.UpdateModuleInput) (domain.Module, error)
 	DeleteModule(ctx context.Context, id int64) error
 }

internal/ports/program.go

@@ -9,6 +9,8 @@ type ProgramStore interface {
 	CreateProgram(ctx context.Context, input domain.CreateProgramInput) (domain.Program, error)
 	GetProgramByID(ctx context.Context, id int64) (domain.Program, error)
 	ListPrograms(ctx context.Context, limit, offset int32) ([]domain.Program, int64, error)
+	ListAllProgramIDs(ctx context.Context) ([]int64, error)
+	ReorderPrograms(ctx context.Context, orderedIDs []int64) error
 	UpdateProgram(ctx context.Context, id int64, input domain.UpdateProgramInput) (domain.Program, error)
 	DeleteProgram(ctx context.Context, id int64) error
 }

internal/repository/lms_access.go

@@ -0,0 +1,87 @@
+package repository
+
+import (
+	"context"
+
+	dbgen "Yimaru-Backend/gen/db"
+)
+
+func (s *Store) LmsGetPreviousProgram(ctx context.Context, programID int64) (dbgen.Program, error) {
+	return s.queries.GetPreviousProgram(ctx, programID)
+}
+
+func (s *Store) LmsGetPreviousCourseInProgram(ctx context.Context, courseID int64) (dbgen.Course, error) {
+	return s.queries.GetPreviousCourseInProgram(ctx, courseID)
+}
+
+func (s *Store) LmsGetPreviousModuleInCourse(ctx context.Context, moduleID int64) (dbgen.Module, error) {
+	return s.queries.GetPreviousModuleInCourse(ctx, moduleID)
+}
+
+func (s *Store) LmsGetPreviousLessonInModule(ctx context.Context, lessonID int64) (dbgen.Lesson, error) {
+	return s.queries.GetPreviousLessonInModule(ctx, lessonID)
+}
+
+func (s *Store) LmsUserHasProgramProgress(ctx context.Context, userID, programID int64) (bool, error) {
+	return s.queries.UserHasProgramProgress(ctx, dbgen.UserHasProgramProgressParams{UserID: userID, ProgramID: programID})
+}
+
+func (s *Store) LmsUserHasCourseProgress(ctx context.Context, userID, courseID int64) (bool, error) {
+	return s.queries.UserHasCourseProgress(ctx, dbgen.UserHasCourseProgressParams{UserID: userID, CourseID: courseID})
+}
+
+func (s *Store) LmsUserHasModuleProgress(ctx context.Context, userID, moduleID int64) (bool, error) {
+	return s.queries.UserHasModuleProgress(ctx, dbgen.UserHasModuleProgressParams{UserID: userID, ModuleID: moduleID})
+}
+
+func (s *Store) LmsUserHasLessonProgress(ctx context.Context, userID, lessonID int64) (bool, error) {
+	return s.queries.UserHasLessonProgress(ctx, dbgen.UserHasLessonProgressParams{UserID: userID, LessonID: lessonID})
+}
+
+// LmsUserLessonProgressInModule returns completed and total lesson counts in a module (for progress UI).
+func (s *Store) LmsUserLessonProgressInModule(ctx context.Context, userID, moduleID int64) (completed, total int32, err error) {
+	total, err = s.queries.CountLessonsInModule(ctx, moduleID)
+	if err != nil {
+		return 0, 0, err
+	}
+	completed, err = s.queries.CountUserCompletedLessonsInModule(ctx, dbgen.CountUserCompletedLessonsInModuleParams{
+		ModuleID: moduleID,
+		UserID:   userID,
+	})
+	if err != nil {
+		return 0, 0, err
+	}
+	return completed, total, nil
+}
+
+// LmsUserLessonProgressInCourse returns completed and total lesson counts in a course (all modules).
+func (s *Store) LmsUserLessonProgressInCourse(ctx context.Context, userID, courseID int64) (completed, total int32, err error) {
+	total, err = s.queries.CountLessonsInCourse(ctx, courseID)
+	if err != nil {
+		return 0, 0, err
+	}
+	completed, err = s.queries.CountUserCompletedLessonsInCourse(ctx, dbgen.CountUserCompletedLessonsInCourseParams{
+		CourseID: courseID,
+		UserID:   userID,
+	})
+	if err != nil {
+		return 0, 0, err
+	}
+	return completed, total, nil
+}
+
+// LmsUserLessonProgressInProgram returns completed and total lesson counts in a program (all courses).
+func (s *Store) LmsUserLessonProgressInProgram(ctx context.Context, userID, programID int64) (completed, total int32, err error) {
+	total, err = s.queries.CountLessonsInProgram(ctx, programID)
+	if err != nil {
+		return 0, 0, err
+	}
+	completed, err = s.queries.CountUserCompletedLessonsInProgram(ctx, dbgen.CountUserCompletedLessonsInProgramParams{
+		ProgramID: programID,
+		UserID:    userID,
+	})
+	if err != nil {
+		return 0, 0, err
+	}
+	return completed, total, nil
+}

internal/repository/lms_courses.go

@@ -24,6 +24,7 @@ func courseToDomain(c dbgen.Course) domain.Course {
 		t := c.UpdatedAt.Time
 		out.UpdatedAt = &t
 	}
+	out.SortOrder = int(c.SortOrder)
 	return out
 }
 
@@ -40,6 +41,10 @@ func (s *Store) CreateCourse(ctx context.Context, programID int64, input domain.
 	return courseToDomain(c), nil
 }
 
+func (s *Store) ListCourseIDsByProgram(ctx context.Context, programID int64) ([]int64, error) {
+	return s.queries.ListCourseIDsByProgram(ctx, programID)
+}
+
 func (s *Store) GetCourseByID(ctx context.Context, id int64) (domain.Course, error) {
 	c, err := s.queries.GetCourseByID(ctx, id)
 	if err != nil {
@@ -77,6 +82,7 @@ func (s *Store) ListCoursesByProgramID(ctx context.Context, programID int64, lim
 			Thumbnail:   r.Thumbnail,
 			CreatedAt:   r.CreatedAt,
 			UpdatedAt:   r.UpdatedAt,
+			SortOrder:   r.SortOrder,
 		}))
 	}
 	return out, total, nil
@@ -94,6 +100,7 @@ func (s *Store) UpdateCourse(ctx context.Context, id int64, input domain.UpdateC
 		Name:        nameText,
 		Description: optionalTextUpdate(input.Description),
 		Thumbnail:   optionalTextUpdate(input.Thumbnail),
+		SortOrder:   optionalInt4Update(input.SortOrder),
 	})
 	if err != nil {
 		if errors.Is(err, pgx.ErrNoRows) {

internal/repository/lms_lessons.go

@@ -25,6 +25,7 @@ func lessonToDomain(l dbgen.Lesson) domain.Lesson {
 		t := l.UpdatedAt.Time
 		out.UpdatedAt = &t
 	}
+	out.SortOrder = int(l.SortOrder)
 	return out
 }
 
@@ -80,6 +81,7 @@ func (s *Store) ListLessonsByModuleID(ctx context.Context, moduleID int64, limit
 			Description: r.Description,
 			CreatedAt:   r.CreatedAt,
 			UpdatedAt:   r.UpdatedAt,
+			SortOrder:   r.SortOrder,
 		}))
 	}
 	return out, total, nil
@@ -98,6 +100,7 @@ func (s *Store) UpdateLesson(ctx context.Context, id int64, input domain.UpdateL
 		VideoUrl:    optionalTextUpdate(input.VideoURL),
 		Thumbnail:   optionalTextUpdate(input.Thumbnail),
 		Description: optionalTextUpdate(input.Description),
+		SortOrder:   optionalInt4Update(input.SortOrder),
 	})
 	if err != nil {
 		if errors.Is(err, pgx.ErrNoRows) {

internal/repository/lms_modules.go

@@ -25,6 +25,7 @@ func moduleToDomain(m dbgen.Module) domain.Module {
 		t := m.UpdatedAt.Time
 		out.UpdatedAt = &t
 	}
+	out.SortOrder = int(m.SortOrder)
 	return out
 }
 
@@ -42,6 +43,10 @@ func (s *Store) CreateModule(ctx context.Context, programID, courseID int64, inp
 	return moduleToDomain(m), nil
 }
 
+func (s *Store) ListModuleIDsByCourse(ctx context.Context, courseID int64) ([]int64, error) {
+	return s.queries.ListModuleIDsByCourse(ctx, courseID)
+}
+
 func (s *Store) GetModuleByID(ctx context.Context, id int64) (domain.Module, error) {
 	m, err := s.queries.GetModuleByID(ctx, id)
 	if err != nil {
@@ -81,6 +86,7 @@ func (s *Store) ListModulesByProgramAndCourse(ctx context.Context, programID, co
 			Icon:        r.Icon,
 			CreatedAt:   r.CreatedAt,
 			UpdatedAt:   r.UpdatedAt,
+			SortOrder:   r.SortOrder,
 		}))
 	}
 	return out, total, nil
@@ -98,6 +104,7 @@ func (s *Store) UpdateModule(ctx context.Context, id int64, input domain.UpdateM
 		Name:        nameText,
 		Description: optionalTextUpdate(input.Description),
 		Icon:        optionalTextUpdate(input.Icon),
+		SortOrder:   optionalInt4Update(input.SortOrder),
 	})
 	if err != nil {
 		if errors.Is(err, pgx.ErrNoRows) {

internal/repository/lms_progress_tx.go

@@ -0,0 +1,86 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+
+	dbgen "Yimaru-Backend/gen/db"
+)
+
+// CompleteLessonForUser records lesson completion and cascades to module, course, and program when the user
+// has fully completed the preceding scope. Runs in a single transaction.
+func (s *Store) CompleteLessonForUser(ctx context.Context, userID, lessonID int64) error {
+	q, tx, err := s.BeginTx(ctx)
+	if err != nil {
+		return fmt.Errorf("begin tx: %w", err)
+	}
+	defer func() { _ = tx.Rollback(ctx) }()
+
+	if err := q.InsertUserLessonProgress(ctx, dbgen.InsertUserLessonProgressParams{UserID: userID, LessonID: lessonID}); err != nil {
+		return err
+	}
+	lesson, err := q.GetLessonByID(ctx, lessonID)
+	if err != nil {
+		return err
+	}
+	mod, err := q.GetModuleByID(ctx, lesson.ModuleID)
+	if err != nil {
+		return err
+	}
+	crs, err := q.GetCourseByID(ctx, mod.CourseID)
+	if err != nil {
+		return err
+	}
+	nLess, err := q.CountLessonsInModule(ctx, lesson.ModuleID)
+	if err != nil {
+		return err
+	}
+	nDoneLess, err := q.CountUserCompletedLessonsInModule(ctx, dbgen.CountUserCompletedLessonsInModuleParams{
+		ModuleID: lesson.ModuleID,
+		UserID:   userID,
+	})
+	if err != nil {
+		return err
+	}
+	if nLess > 0 && nDoneLess >= nLess {
+		if err := q.InsertUserModuleProgress(ctx, dbgen.InsertUserModuleProgressParams{UserID: userID, ModuleID: mod.ID}); err != nil {
+			return err
+		}
+		nMods, err := q.CountModulesInCourse(ctx, mod.CourseID)
+		if err != nil {
+			return err
+		}
+		nDoneMods, err := q.CountUserCompletedModulesInCourse(ctx, dbgen.CountUserCompletedModulesInCourseParams{
+			CourseID: mod.CourseID,
+			UserID:   userID,
+		})
+		if err != nil {
+			return err
+		}
+		if nMods > 0 && nDoneMods >= nMods {
+			if err := q.InsertUserCourseProgress(ctx, dbgen.InsertUserCourseProgressParams{UserID: userID, CourseID: crs.ID}); err != nil {
+				return err
+			}
+			nCr, err := q.CountCoursesInProgram(ctx, crs.ProgramID)
+			if err != nil {
+				return err
+			}
+			nCrDone, err := q.CountUserCompletedCoursesInProgram(ctx, dbgen.CountUserCompletedCoursesInProgramParams{
+				ProgramID: crs.ProgramID,
+				UserID:    userID,
+			})
+			if err != nil {
+				return err
+			}
+			if nCr > 0 && nCrDone >= nCr {
+				if err := q.InsertUserProgramProgress(ctx, dbgen.InsertUserProgramProgressParams{UserID: userID, ProgramID: crs.ProgramID}); err != nil {
+					return err
+				}
+			}
+		}
+	}
+	if err := tx.Commit(ctx); err != nil {
+		return fmt.Errorf("commit: %w", err)
+	}
+	return nil
+}

internal/repository/lms_reorder.go

@@ -0,0 +1,73 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+)
+
+// ReorderPrograms sets sort_order to 1..n in the given order (transactional).
+func (s *Store) ReorderPrograms(ctx context.Context, orderedIDs []int64) error {
+	tx, err := s.conn.Begin(ctx)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = tx.Rollback(ctx) }()
+	for i, id := range orderedIDs {
+		tag, err := tx.Exec(ctx, `UPDATE programs SET sort_order = $1, updated_at = CURRENT_TIMESTAMP WHERE id = $2`, int32(i+1), id)
+		if err != nil {
+			return err
+		}
+		if tag.RowsAffected() == 0 {
+			return fmt.Errorf("program id %d not found", id)
+		}
+	}
+	return tx.Commit(ctx)
+}
+
+// ReorderCoursesInProgram sets sort_order for courses under programID (transactional).
+func (s *Store) ReorderCoursesInProgram(ctx context.Context, programID int64, orderedIDs []int64) error {
+	tx, err := s.conn.Begin(ctx)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = tx.Rollback(ctx) }()
+	for i, id := range orderedIDs {
+		tag, err := tx.Exec(ctx, `
+UPDATE courses
+SET sort_order = $1,
+    updated_at = CURRENT_TIMESTAMP
+WHERE id = $2
+  AND program_id = $3`, int32(i+1), id, programID)
+		if err != nil {
+			return err
+		}
+		if tag.RowsAffected() == 0 {
+			return fmt.Errorf("course id %d not in program %d", id, programID)
+		}
+	}
+	return tx.Commit(ctx)
+}
+
+// ReorderModulesInCourse sets sort_order for modules under courseID (transactional).
+func (s *Store) ReorderModulesInCourse(ctx context.Context, courseID int64, orderedIDs []int64) error {
+	tx, err := s.conn.Begin(ctx)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = tx.Rollback(ctx) }()
+	for i, id := range orderedIDs {
+		tag, err := tx.Exec(ctx, `
+UPDATE modules
+SET sort_order = $1,
+    updated_at = CURRENT_TIMESTAMP
+WHERE id = $2
+  AND course_id = $3`, int32(i+1), id, courseID)
+		if err != nil {
+			return err
+		}
+		if tag.RowsAffected() == 0 {
+			return fmt.Errorf("module id %d not in course %d", id, courseID)
+		}
+	}
+	return tx.Commit(ctx)
+}

internal/repository/lms_user_progress_snapshot.go

@@ -0,0 +1,33 @@
+package repository
+
+import (
+	"context"
+
+	"Yimaru-Backend/internal/domain"
+)
+
+// GetLMSUserProgressSnapshot returns all completed lesson, module, course, and program IDs for a user.
+func (s *Store) GetLMSUserProgressSnapshot(ctx context.Context, userID int64) (domain.LMSUserProgress, error) {
+	lessons, err := s.queries.ListLMSCompletedLessonIDsByUser(ctx, userID)
+	if err != nil {
+		return domain.LMSUserProgress{}, err
+	}
+	mods, err := s.queries.ListLMSCompletedModuleIDsByUser(ctx, userID)
+	if err != nil {
+		return domain.LMSUserProgress{}, err
+	}
+	courses, err := s.queries.ListLMSCompletedCourseIDsByUser(ctx, userID)
+	if err != nil {
+		return domain.LMSUserProgress{}, err
+	}
+	programs, err := s.queries.ListLMSCompletedProgramIDsByUser(ctx, userID)
+	if err != nil {
+		return domain.LMSUserProgress{}, err
+	}
+	return domain.LMSUserProgress{
+		LessonIDs:  lessons,
+		ModuleIDs:  mods,
+		CourseIDs:  courses,
+		ProgramIDs: programs,
+	}, nil
+}

internal/repository/programs.go

@@ -23,6 +23,7 @@ func programToDomain(p dbgen.Program) domain.Program {
 		t := p.UpdatedAt.Time
 		out.UpdatedAt = &t
 	}
+	out.SortOrder = int(p.SortOrder)
 	return out
 }
 
@@ -38,6 +39,10 @@ func (s *Store) CreateProgram(ctx context.Context, input domain.CreateProgramInp
 	return programToDomain(p), nil
 }
 
+func (s *Store) ListAllProgramIDs(ctx context.Context) ([]int64, error) {
+	return s.queries.ListAllProgramIDs(ctx)
+}
+
 func (s *Store) GetProgramByID(ctx context.Context, id int64) (domain.Program, error) {
 	p, err := s.queries.GetProgramByID(ctx, id)
 	if err != nil {
@@ -73,6 +78,7 @@ func (s *Store) ListPrograms(ctx context.Context, limit, offset int32) ([]domain
 			Thumbnail:   r.Thumbnail,
 			CreatedAt:   r.CreatedAt,
 			UpdatedAt:   r.UpdatedAt,
+			SortOrder:   r.SortOrder,
 		}))
 	}
 	return out, total, nil
@@ -85,6 +91,13 @@ func optionalTextUpdate(val *string) pgtype.Text {
 	return pgtype.Text{String: *val, Valid: true}
 }
 
+func optionalInt4Update(v *int) pgtype.Int4 {
+	if v == nil {
+		return pgtype.Int4{Valid: false}
+	}
+	return pgtype.Int4{Int32: int32(*v), Valid: true}
+}
+
 func (s *Store) UpdateProgram(ctx context.Context, id int64, input domain.UpdateProgramInput) (domain.Program, error) {
 	var nameText pgtype.Text
 	if input.Name != nil {
@@ -97,6 +110,7 @@ func (s *Store) UpdateProgram(ctx context.Context, id int64, input domain.Update
 		Name:        nameText,
 		Description: optionalTextUpdate(input.Description),
 		Thumbnail:   optionalTextUpdate(input.Thumbnail),
+		SortOrder:   optionalInt4Update(input.SortOrder),
 	})
 	if err != nil {
 		if errors.Is(err, pgx.ErrNoRows) {

internal/services/courses/service.go

@@ -81,3 +81,25 @@ func (s *Service) Delete(ctx context.Context, id int64) error {
 	}
 	return s.courses.DeleteCourse(ctx, id)
 }
+
+// ReorderInProgram sets course sort_order under a program. ordered must list every course id in that program
+// exactly once (e.g. from GET /programs/{id}/courses) in the desired order.
+func (s *Service) ReorderInProgram(ctx context.Context, programID int64, ordered []int64) error {
+	if _, err := s.programs.GetProgramByID(ctx, programID); err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			return programs.ErrProgramNotFound
+		}
+		return err
+	}
+	expected, err := s.courses.ListCourseIDsByProgram(ctx, programID)
+	if err != nil {
+		return err
+	}
+	if err := domain.ValidateReorderPermutation(ordered, expected); err != nil {
+		return err
+	}
+	if len(ordered) == 0 {
+		return nil
+	}
+	return s.courses.ReorderCoursesInProgram(ctx, programID, ordered)
+}

internal/services/lmsprogress/service.go

@@ -0,0 +1,279 @@
+package lmsprogress
+
+import (
+	"context"
+	"errors"
+
+	"Yimaru-Backend/internal/domain"
+	"Yimaru-Backend/internal/repository"
+
+	"github.com/jackc/pgx/v5"
+)
+
+const (
+	errPrevProgram = "Complete the previous program before accessing this one."
+	errPrevCourse  = "Complete the previous course in this program first."
+	errPrevModule  = "Complete the previous module in this course first."
+	errPrevLesson  = "Complete the previous lesson in this module first."
+)
+
+// Service enforces sequential LMS access for learners and records lesson progress.
+type Service struct {
+	store *repository.Store
+}
+
+func NewService(store *repository.Store) *Service {
+	return &Service{store: store}
+}
+
+// CompleteLessonForUser records lesson completion and rolls up to module, course, and program when applicable.
+func (s *Service) CompleteLessonForUser(ctx context.Context, userID, lessonID int64) error {
+	return s.store.CompleteLessonForUser(ctx, userID, lessonID)
+}
+
+// GetMyProgress returns completed lesson, module, course, and program IDs for the user.
+func (s *Service) GetMyProgress(ctx context.Context, userID int64) (domain.LMSUserProgress, error) {
+	return s.store.GetLMSUserProgressSnapshot(ctx, userID)
+}
+
+// CanAccessProgram returns whether the user may use content under this program (previous program must be fully completed if any).
+func (s *Service) CanAccessProgram(ctx context.Context, userID, programID int64) (ok bool, reason string, err error) {
+	if _, err := s.store.GetProgramByID(ctx, programID); err != nil {
+		return false, "", err
+	}
+	prev, err := s.store.LmsGetPreviousProgram(ctx, programID)
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			return true, "", nil
+		}
+		return false, "", err
+	}
+	has, err := s.store.LmsUserHasProgramProgress(ctx, userID, prev.ID)
+	if err != nil {
+		return false, "", err
+	}
+	if !has {
+		return false, errPrevProgram, nil
+	}
+	return true, "", nil
+}
+
+// CanAccessCourse requires the parent program to be accessible and the previous course in the program to be completed.
+func (s *Service) CanAccessCourse(ctx context.Context, userID, courseID int64) (ok bool, reason string, err error) {
+	c, err := s.store.GetCourseByID(ctx, courseID)
+	if err != nil {
+		return false, "", err
+	}
+	ok, reason, err = s.CanAccessProgram(ctx, userID, c.ProgramID)
+	if err != nil || !ok {
+		return ok, reason, err
+	}
+	prev, err := s.store.LmsGetPreviousCourseInProgram(ctx, courseID)
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			return true, "", nil
+		}
+		return false, "", err
+	}
+	has, err := s.store.LmsUserHasCourseProgress(ctx, userID, prev.ID)
+	if err != nil {
+		return false, "", err
+	}
+	if !has {
+		return false, errPrevCourse, nil
+	}
+	return true, "", nil
+}
+
+// CanAccessModule requires the course (and its program chain) to be accessible and the previous module in the course to be completed.
+func (s *Service) CanAccessModule(ctx context.Context, userID, moduleID int64) (ok bool, reason string, err error) {
+	m, err := s.store.GetModuleByID(ctx, moduleID)
+	if err != nil {
+		return false, "", err
+	}
+	ok, reason, err = s.CanAccessCourse(ctx, userID, m.CourseID)
+	if err != nil || !ok {
+		return ok, reason, err
+	}
+	prev, err := s.store.LmsGetPreviousModuleInCourse(ctx, moduleID)
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			return true, "", nil
+		}
+		return false, "", err
+	}
+	has, err := s.store.LmsUserHasModuleProgress(ctx, userID, prev.ID)
+	if err != nil {
+		return false, "", err
+	}
+	if !has {
+		return false, errPrevModule, nil
+	}
+	return true, "", nil
+}
+
+// CanAccessLesson requires the module chain to be accessible and the previous lesson in the module to be completed.
+func (s *Service) CanAccessLesson(ctx context.Context, userID, lessonID int64) (ok bool, reason string, err error) {
+	lesson, err := s.store.GetLessonByID(ctx, lessonID)
+	if err != nil {
+		return false, "", err
+	}
+	ok, reason, err = s.CanAccessModule(ctx, userID, lesson.ModuleID)
+	if err != nil || !ok {
+		return ok, reason, err
+	}
+	prev, err := s.store.LmsGetPreviousLessonInModule(ctx, lessonID)
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			return true, "", nil
+		}
+		return false, "", err
+	}
+	has, err := s.store.LmsUserHasLessonProgress(ctx, userID, prev.ID)
+	if err != nil {
+		return false, "", err
+	}
+	if !has {
+		return false, errPrevLesson, nil
+	}
+	return true, "", nil
+}
+
+// ApplyAccessProgram sets p.Access for a learner. Non-learners: clears Access to omit from JSON.
+func (s *Service) ApplyAccessProgram(ctx context.Context, role domain.Role, userID int64, p *domain.Program) error {
+	if role != domain.RoleStudent {
+		p.Access = nil
+		return nil
+	}
+	ok, reason, err := s.CanAccessProgram(ctx, userID, p.ID)
+	if err != nil {
+		return err
+	}
+	done, err := s.store.LmsUserHasProgramProgress(ctx, userID, p.ID)
+	if err != nil {
+		return err
+	}
+	comp, tot, err := s.store.LmsUserLessonProgressInProgram(ctx, userID, p.ID)
+	if err != nil {
+		return err
+	}
+	c, t, pct := lmsProgressCounts(comp, tot, done)
+	p.Access = &domain.LMSEntityAccess{
+		IsAccessible: ok, IsCompleted: done, Reason: reasonIf(ok, reason),
+		CompletedCount: c, TotalCount: t, ProgressPercent: pct,
+	}
+	return nil
+}
+
+// ApplyAccessCourse sets c.Access for a learner.
+func (s *Service) ApplyAccessCourse(ctx context.Context, role domain.Role, userID int64, c *domain.Course) error {
+	if role != domain.RoleStudent {
+		c.Access = nil
+		return nil
+	}
+	ok, reason, err := s.CanAccessCourse(ctx, userID, c.ID)
+	if err != nil {
+		return err
+	}
+	done, err := s.store.LmsUserHasCourseProgress(ctx, userID, c.ID)
+	if err != nil {
+		return err
+	}
+	comp, tot, err := s.store.LmsUserLessonProgressInCourse(ctx, userID, c.ID)
+	if err != nil {
+		return err
+	}
+	cc, tt, pct := lmsProgressCounts(comp, tot, done)
+	c.Access = &domain.LMSEntityAccess{
+		IsAccessible: ok, IsCompleted: done, Reason: reasonIf(ok, reason),
+		CompletedCount: cc, TotalCount: tt, ProgressPercent: pct,
+	}
+	return nil
+}
+
+// ApplyAccessModule sets m.Access for a learner.
+func (s *Service) ApplyAccessModule(ctx context.Context, role domain.Role, userID int64, m *domain.Module) error {
+	if role != domain.RoleStudent {
+		m.Access = nil
+		return nil
+	}
+	ok, reason, err := s.CanAccessModule(ctx, userID, m.ID)
+	if err != nil {
+		return err
+	}
+	done, err := s.store.LmsUserHasModuleProgress(ctx, userID, m.ID)
+	if err != nil {
+		return err
+	}
+	comp, tot, err := s.store.LmsUserLessonProgressInModule(ctx, userID, m.ID)
+	if err != nil {
+		return err
+	}
+	cc, tt, pct := lmsProgressCounts(comp, tot, done)
+	m.Access = &domain.LMSEntityAccess{
+		IsAccessible: ok, IsCompleted: done, Reason: reasonIf(ok, reason),
+		CompletedCount: cc, TotalCount: tt, ProgressPercent: pct,
+	}
+	return nil
+}
+
+// ApplyAccessLesson sets l.Access for a learner.
+func (s *Service) ApplyAccessLesson(ctx context.Context, role domain.Role, userID int64, les *domain.Lesson) error {
+	if role != domain.RoleStudent {
+		les.Access = nil
+		return nil
+	}
+	ok, reason, err := s.CanAccessLesson(ctx, userID, les.ID)
+	if err != nil {
+		return err
+	}
+	done, err := s.store.LmsUserHasLessonProgress(ctx, userID, les.ID)
+	if err != nil {
+		return err
+	}
+	var comp, tot int32
+	if done {
+		comp, tot = 1, 1
+	} else {
+		comp, tot = 0, 1
+	}
+	c, t, pct := lmsProgressCounts(comp, tot, done)
+	les.Access = &domain.LMSEntityAccess{
+		IsAccessible: ok, IsCompleted: done, Reason: reasonIf(ok, reason),
+		CompletedCount: c, TotalCount: t, ProgressPercent: pct,
+	}
+	return nil
+}
+
+// lmsProgressCounts maps DB lesson completion counts to UI fields. Percent is 0–100; completed
+// and total are aligned with isCompleted when the entity is fully done.
+func lmsProgressCounts(completed, total int32, isCompleted bool) (c, t, pct int) {
+	c, t = int(completed), int(total)
+	if t < 0 {
+		t = 0
+	}
+	if c < 0 {
+		c = 0
+	}
+	if isCompleted {
+		if t > 0 {
+			return t, t, 100
+		}
+		return c, t, 100
+	}
+	if t == 0 {
+		return 0, 0, 0
+	}
+	pct = (c * 100) / t
+	if pct > 100 {
+		pct = 100
+	}
+	return c, t, pct
+}
+
+func reasonIf(ok bool, r string) string {
+	if ok {
+		return ""
+	}
+	return r
+}

internal/services/modules/service.go

@@ -90,3 +90,22 @@ func (s *Service) Delete(ctx context.Context, id int64) error {
 	}
 	return s.modules.DeleteModule(ctx, id)
 }
+
+// ReorderInCourse sets module sort_order under a course. ordered must list every module id in that course
+// exactly once (e.g. from GET /courses/{id}/modules) in the desired order.
+func (s *Service) ReorderInCourse(ctx context.Context, courseID int64, ordered []int64) error {
+	if _, err := s.getCourseOrErr(ctx, courseID); err != nil {
+		return err
+	}
+	expected, err := s.modules.ListModuleIDsByCourse(ctx, courseID)
+	if err != nil {
+		return err
+	}
+	if err := domain.ValidateReorderPermutation(ordered, expected); err != nil {
+		return err
+	}
+	if len(ordered) == 0 {
+		return nil
+	}
+	return s.modules.ReorderModulesInCourse(ctx, courseID, ordered)
+}

internal/services/programs/service.go

@@ -67,3 +67,19 @@ func (s *Service) Delete(ctx context.Context, id int64) error {
 	}
 	return s.store.DeleteProgram(ctx, id)
 }
+
+// Reorder sets program sort_order from ordered ids (1..n). ordered must list every program id exactly once
+// (e.g. from GET /programs) in the desired display / learning order.
+func (s *Service) Reorder(ctx context.Context, ordered []int64) error {
+	expected, err := s.store.ListAllProgramIDs(ctx)
+	if err != nil {
+		return err
+	}
+	if err := domain.ValidateReorderPermutation(ordered, expected); err != nil {
+		return err
+	}
+	if len(ordered) == 0 {
+		return nil
+	}
+	return s.store.ReorderPrograms(ctx, ordered)
+}

internal/services/rbac/seeds.go

@@ -27,6 +27,7 @@ var AllPermissions = []domain.PermissionSeed{
 	{Key: "programs.get", Name: "Get Program", Description: "Get a program by ID", GroupName: "Programs"},
 	{Key: "programs.update", Name: "Update Program", Description: "Update a program", GroupName: "Programs"},
 	{Key: "programs.delete", Name: "Delete Program", Description: "Delete a program", GroupName: "Programs"},
+	{Key: "programs.reorder", Name: "Reorder Programs", Description: "Set program order for the learning path (batch)", GroupName: "Programs"},
 
 	// Modules (LMS, under a course)
 	{Key: "modules.create", Name: "Create Module", Description: "Create a module in a course", GroupName: "Modules"},
@@ -34,14 +35,19 @@ var AllPermissions = []domain.PermissionSeed{
 	{Key: "modules.list_by_course", Name: "List Modules by Course", Description: "List modules under a program and course", GroupName: "Modules"},
 	{Key: "modules.update", Name: "Update Module", Description: "Update a module", GroupName: "Modules"},
 	{Key: "modules.delete", Name: "Delete Module", Description: "Delete a module", GroupName: "Modules"},
+	{Key: "modules.reorder", Name: "Reorder Modules", Description: "Set module order within a course (batch)", GroupName: "Modules"},
 
 	// Lessons (LMS, under a module)
 	{Key: "lessons.create", Name: "Create Lesson", Description: "Create a lesson in a module", GroupName: "Lessons"},
 	{Key: "lessons.get", Name: "Get Lesson", Description: "Get a lesson by ID", GroupName: "Lessons"},
+	{Key: "lessons.complete", Name: "Complete Lesson", Description: "Mark a lesson as complete (sequential learning progress)", GroupName: "Lessons"},
 	{Key: "lessons.list_by_module", Name: "List Lessons by Module", Description: "List lessons under a module", GroupName: "Lessons"},
 	{Key: "lessons.update", Name: "Update Lesson", Description: "Update a lesson", GroupName: "Lessons"},
 	{Key: "lessons.delete", Name: "Delete Lesson", Description: "Delete a lesson", GroupName: "Lessons"},
 
+	// LMS progress (current user)
+	{Key: "lms.get_my_progress", Name: "Get My LMS Progress", Description: "List completed lesson, module, course, and program IDs for the authenticated user", GroupName: "LMS"},
+
 	// Practices (LMS, scoped to course, module, or lesson)
 	{Key: "practices.create", Name: "Create Practice", Description: "Create a practice", GroupName: "Practices"},
 	{Key: "practices.get", Name: "Get Practice", Description: "Get a practice by ID", GroupName: "Practices"},
@@ -273,13 +279,14 @@ var DefaultRolePermissions = map[string][]string{
 		"learning_tree.get", "practices.reorder",
 
 		// Programs
-		"programs.create", "programs.list", "programs.get", "programs.update", "programs.delete",
+		"programs.create", "programs.list", "programs.get", "programs.update", "programs.delete", "programs.reorder",
+		"lms.get_my_progress",
 
 		// Modules
-		"modules.create", "modules.get", "modules.list_by_course", "modules.update", "modules.delete",
+		"modules.create", "modules.get", "modules.list_by_course", "modules.update", "modules.delete", "modules.reorder",
 
 		// Lessons
-		"lessons.create", "lessons.get", "lessons.list_by_module", "lessons.update", "lessons.delete",
+		"lessons.create", "lessons.get", "lessons.list_by_module", "lessons.complete", "lessons.update", "lessons.delete",
 
 		// Practices
 		"practices.create", "practices.get", "practices.list", "practices.update", "practices.delete",
@@ -360,13 +367,14 @@ var DefaultRolePermissions = map[string][]string{
 		"course_categories.list", "course_categories.get",
 		"courses.get", "courses.list_by_program",
 		"modules.get", "modules.list_by_course",
-		"lessons.get", "lessons.list_by_module",
+		"lessons.get", "lessons.list_by_module", "lessons.complete",
 		"practices.get", "practices.list",
 		"subcourses.get", "subcourses.list_by_course", "subcourses.list_by_course_list", "subcourses.list_active",
 		"videos.get", "videos.list_by_subcourse", "videos.list_published",
 		"learning_tree.get",
 
 		"programs.list", "programs.get",
+		"lms.get_my_progress",
 
 		// Questions (read + attempt)
 		"questions.list", "questions.search", "questions.get",
@@ -413,12 +421,15 @@ var DefaultRolePermissions = map[string][]string{
 		"course_categories.list", "course_categories.get",
 		"courses.get", "courses.list_by_program",
 		"modules.get", "modules.list_by_course",
-		"lessons.get", "lessons.list_by_module",
+		"lessons.get", "lessons.list_by_module", "lessons.complete",
 		"practices.get", "practices.list",
 		"subcourses.get", "subcourses.list_by_course", "subcourses.list_by_course_list", "subcourses.list_active",
 		"videos.get", "videos.list_by_subcourse", "videos.list_published",
 		"learning_tree.get",
 
+		"programs.list", "programs.get",
+		"lms.get_my_progress",
+
 		// Questions (full — instructors create content)
 		"questions.create", "questions.list", "questions.search", "questions.get", "questions.update", "questions.delete",
 		"question_sets.create", "question_sets.list", "question_sets.list_by_owner", "question_sets.get", "question_sets.update", "question_sets.delete",

internal/web_server/app.go

@@ -13,6 +13,7 @@ import (
 	notificationservice "Yimaru-Backend/internal/services/notification"
 	"Yimaru-Backend/internal/services/courses"
 	"Yimaru-Backend/internal/services/lessons"
+	"Yimaru-Backend/internal/services/lmsprogress"
 	"Yimaru-Backend/internal/services/modules"
 	"Yimaru-Backend/internal/services/practices"
 	"Yimaru-Backend/internal/services/programs"
@@ -48,6 +49,7 @@ type App struct {
 	courseSvc        *courses.Service
 	moduleSvc        *modules.Service
 	lessonSvc        *lessons.Service
+	lmsProgressSvc   *lmsprogress.Service
 	practiceSvc      *practices.Service
 	subscriptionsSvc *subscriptions.Service
 	arifpaySvc        *arifpay.ArifpayService
@@ -84,6 +86,7 @@ func NewApp(
 	courseSvc *courses.Service,
 	moduleSvc *modules.Service,
 	lessonSvc *lessons.Service,
+	lmsProgressSvc *lmsprogress.Service,
 	practiceSvc *practices.Service,
 	subscriptionsSvc *subscriptions.Service,
 	arifpaySvc *arifpay.ArifpayService,
@@ -132,6 +135,7 @@ func NewApp(
 		courseSvc:         courseSvc,
 		moduleSvc:         moduleSvc,
 		lessonSvc:         lessonSvc,
+		lmsProgressSvc:    lmsProgressSvc,
 		practiceSvc:       practiceSvc,
 		subscriptionsSvc:  subscriptionsSvc,
 		arifpaySvc:        arifpaySvc,

internal/web_server/handlers/course_handler.go

@@ -105,6 +105,16 @@ func (h *Handler) ListCoursesByProgram(c *fiber.Ctx) error {
 			Error:   err.Error(),
 		})
 	}
+	uid := c.Locals("user_id").(int64)
+	role := c.Locals("role").(domain.Role)
+	for i := range items {
+		if err := h.lmsProgressSvc.ApplyAccessCourse(c.Context(), role, uid, &items[i]); err != nil {
+			return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+				Message: "Failed to build course list",
+				Error:   err.Error(),
+			})
+		}
+	}
 	return c.JSON(domain.Response{
 		Message: "Courses retrieved successfully",
 		Data: fiber.Map{
@@ -147,6 +157,17 @@ func (h *Handler) GetCourse(c *fiber.Ctx) error {
 			Error:   err.Error(),
 		})
 	}
+	uid := c.Locals("user_id").(int64)
+	role := c.Locals("role").(domain.Role)
+	if err := h.lmsProgressSvc.ApplyAccessCourse(c.Context(), role, uid, &course); err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+			Message: "Failed to evaluate course access",
+			Error:   err.Error(),
+		})
+	}
+	if err := lmsBlockIfInaccessible(c, course.Access); err != nil {
+		return err
+	}
 	return c.JSON(domain.Response{
 		Message:    "Course retrieved successfully",
 		Data:       course,

internal/web_server/handlers/handlers.go

@@ -18,6 +18,7 @@ import (
 	notificationservice 	"Yimaru-Backend/internal/services/notification"
 	"Yimaru-Backend/internal/services/courses"
 	"Yimaru-Backend/internal/services/lessons"
+	"Yimaru-Backend/internal/services/lmsprogress"
 	"Yimaru-Backend/internal/services/modules"
 	"Yimaru-Backend/internal/services/practices"
 	"Yimaru-Backend/internal/services/programs"
@@ -47,6 +48,7 @@ type Handler struct {
 	courseSvc        *courses.Service
 	moduleSvc        *modules.Service
 	lessonSvc        *lessons.Service
+	lmsProgressSvc   *lmsprogress.Service
 	practiceSvc      *practices.Service
 	subscriptionsSvc *subscriptions.Service
 	arifpaySvc        *arifpay.ArifpayService
@@ -79,6 +81,7 @@ func New(
 	courseSvc *courses.Service,
 	moduleSvc *modules.Service,
 	lessonSvc *lessons.Service,
+	lmsProgressSvc *lmsprogress.Service,
 	practiceSvc *practices.Service,
 	subscriptionsSvc *subscriptions.Service,
 	arifpaySvc *arifpay.ArifpayService,
@@ -110,6 +113,7 @@ func New(
 		courseSvc:         courseSvc,
 		moduleSvc:         moduleSvc,
 		lessonSvc:         lessonSvc,
+		lmsProgressSvc:    lmsProgressSvc,
 		practiceSvc:       practiceSvc,
 		subscriptionsSvc:  subscriptionsSvc,
 		arifpaySvc:        arifpaySvc,

internal/web_server/handlers/lesson_handler.go

@@ -97,6 +97,16 @@ func (h *Handler) ListLessonsByModule(c *fiber.Ctx) error {
 			Error:   err.Error(),
 		})
 	}
+	uid := c.Locals("user_id").(int64)
+	role := c.Locals("role").(domain.Role)
+	for i := range items {
+		if err := h.lmsProgressSvc.ApplyAccessLesson(c.Context(), role, uid, &items[i]); err != nil {
+			return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+				Message: "Failed to build lesson list",
+				Error:   err.Error(),
+			})
+		}
+	}
 	return c.JSON(domain.Response{
 		Message: "Lessons retrieved successfully",
 		Data: fiber.Map{
@@ -135,6 +145,17 @@ func (h *Handler) GetLesson(c *fiber.Ctx) error {
 			Error:   err.Error(),
 		})
 	}
+	uid := c.Locals("user_id").(int64)
+	role := c.Locals("role").(domain.Role)
+	if err := h.lmsProgressSvc.ApplyAccessLesson(c.Context(), role, uid, &les); err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+			Message: "Failed to evaluate lesson access",
+			Error:   err.Error(),
+		})
+	}
+	if err := lmsBlockIfInaccessible(c, les.Access); err != nil {
+		return err
+	}
 	return c.JSON(domain.Response{
 		Message:    "Lesson retrieved successfully",
 		Data:       les,
@@ -227,3 +248,61 @@ func (h *Handler) DeleteLesson(c *fiber.Ctx) error {
 		StatusCode: fiber.StatusOK,
 	})
 }
+
+// CompleteLesson godoc
+// @Summary Mark a lesson as completed
+// @Description Records lesson completion; may cascade to module, course, and program progress for the authenticated user. Learners must meet sequential prerequisites; staff bypass checks.
+// @Tags lessons
+// @Param id path int true "Lesson ID"
+// @Success 200 {object} domain.Response
+// @Failure 403 {object} domain.ErrorResponse
+// @Router /api/v1/lessons/{id}/complete [post]
+func (h *Handler) CompleteLesson(c *fiber.Ctx) error {
+	id, err := strconv.ParseInt(c.Params("id"), 10, 64)
+	if err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
+			Message: "Invalid lesson id",
+			Error:   err.Error(),
+		})
+	}
+	if _, err := h.lessonSvc.GetByID(c.Context(), id); err != nil {
+		if errors.Is(err, lessons.ErrLessonNotFound) {
+			return c.Status(fiber.StatusNotFound).JSON(domain.ErrorResponse{
+				Message: "Lesson not found",
+				Error:   err.Error(),
+			})
+		}
+		return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+			Message: "Failed to load lesson",
+			Error:   err.Error(),
+		})
+	}
+	uid := c.Locals("user_id").(int64)
+	role := c.Locals("role").(domain.Role)
+	if role == domain.RoleStudent {
+		ok, reason, err := h.lmsProgressSvc.CanAccessLesson(c.Context(), uid, id)
+		if err != nil {
+			return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+				Message: "Failed to verify lesson access",
+				Error:   err.Error(),
+			})
+		}
+		if !ok {
+			return c.Status(fiber.StatusForbidden).JSON(domain.ErrorResponse{
+				Message: reason,
+				Error:   "LMS_PREREQUISITE_NOT_MET",
+			})
+		}
+	}
+	if err := h.lmsProgressSvc.CompleteLessonForUser(c.Context(), uid, id); err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+			Message: "Failed to record lesson progress",
+			Error:   err.Error(),
+		})
+	}
+	return c.JSON(domain.Response{
+		Message:    "Lesson marked complete",
+		Success:    true,
+		StatusCode: fiber.StatusOK,
+	})
+}

internal/web_server/handlers/lms_gating.go

@@ -0,0 +1,18 @@
+package handlers
+
+import (
+	"Yimaru-Backend/internal/domain"
+
+	"github.com/gofiber/fiber/v2"
+)
+
+// lmsBlockIfInaccessible returns a 403 response when a learner is blocked; otherwise nil.
+func lmsBlockIfInaccessible(c *fiber.Ctx, a *domain.LMSEntityAccess) error {
+	if a == nil || a.IsAccessible {
+		return nil
+	}
+	return c.Status(fiber.StatusForbidden).JSON(domain.ErrorResponse{
+		Message: a.Reason,
+		Error:   "LMS_PREREQUISITE_NOT_MET",
+	})
+}

internal/web_server/handlers/lms_progress_handler.go

@@ -0,0 +1,32 @@
+package handlers
+
+import (
+	"Yimaru-Backend/internal/domain"
+
+	"github.com/gofiber/fiber/v2"
+)
+
+// GetMyLMSProgress godoc
+// @Summary Get my LMS completion history
+// @Description Returns completed lesson, module, course, and program IDs for the authenticated user (ordered by completion time, then id).
+// @Tags lms
+// @Produce json
+// @Success 200 {object} domain.Response
+// @Failure 500 {object} domain.ErrorResponse
+// @Router /api/v1/lms/progress [get]
+func (h *Handler) GetMyLMSProgress(c *fiber.Ctx) error {
+	uid := c.Locals("user_id").(int64)
+	prog, err := h.lmsProgressSvc.GetMyProgress(c.Context(), uid)
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+			Message: "Failed to load learning progress",
+			Error:   err.Error(),
+		})
+	}
+	return c.JSON(domain.Response{
+		Message:    "LMS progress retrieved successfully",
+		Data:       prog,
+		Success:    true,
+		StatusCode: fiber.StatusOK,
+	})
+}

internal/web_server/handlers/lms_reorder_handler.go

@@ -0,0 +1,178 @@
+package handlers
+
+import (
+	"Yimaru-Backend/internal/domain"
+	"Yimaru-Backend/internal/services/courses"
+	"Yimaru-Backend/internal/services/programs"
+	"context"
+	"errors"
+	"strconv"
+
+	"github.com/gofiber/fiber/v2"
+)
+
+// ReorderPrograms godoc
+// @Summary Reorder all programs
+// @Description Sets learning order of programs. Body must list every current program id exactly once, in the desired order (index 0 = first in path).
+// @Tags programs
+// @Accept json
+// @Produce json
+// @Param body body domain.ReorderIDsRequest true "New order: ordered_ids is the full set of program ids"
+// @Success 200 {object} domain.Response
+// @Failure 400 {object} domain.ErrorResponse
+// @Router /api/v1/programs/reorder [put]
+func (h *Handler) ReorderPrograms(c *fiber.Ctx) error {
+	var req domain.ReorderIDsRequest
+	if err := c.BodyParser(&req); err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
+			Message: "Invalid request body",
+			Error:   err.Error(),
+		})
+	}
+	if req.OrderedIDs == nil {
+		return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
+			Message: "ordered_ids is required (use an empty array if there are no programs)",
+			Error:   "missing ordered_ids",
+		})
+	}
+	if err := h.programSvc.Reorder(c.Context(), req.OrderedIDs); err != nil {
+		if errors.Is(err, domain.ErrReorderInvalidIDSet) {
+			return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
+				Message: err.Error(),
+				Error:   "INVALID_REORDER",
+			})
+		}
+		return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+			Message: "Failed to reorder programs",
+			Error:   err.Error(),
+		})
+	}
+	actorID := c.Locals("user_id").(int64)
+	actorRole := string(c.Locals("role").(domain.Role))
+	ip := c.IP()
+	ua := c.Get("User-Agent")
+	go h.activityLogSvc.RecordAction(context.Background(), &actorID, &actorRole, domain.ActionProgramUpdated, domain.ResourceProgram, nil, "Reordered programs", nil, &ip, &ua)
+
+	return c.JSON(domain.Response{
+		Message:    "Programs reordered successfully",
+		Success:    true,
+		StatusCode: fiber.StatusOK,
+	})
+}
+
+// ReorderCoursesInProgram godoc
+// @Summary Reorder courses within a program
+// @Param id path int true "Program ID"
+// @Param body body domain.ReorderIDsRequest true "ordered_ids: every course id in this program, in the new order"
+// @Tags courses
+// @Router /api/v1/programs/{id}/courses/reorder [put]
+func (h *Handler) ReorderCoursesInProgram(c *fiber.Ctx) error {
+	programID, err := strconv.ParseInt(c.Params("id"), 10, 64)
+	if err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
+			Message: "Invalid program id",
+			Error:   err.Error(),
+		})
+	}
+	var req domain.ReorderIDsRequest
+	if err := c.BodyParser(&req); err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
+			Message: "Invalid request body",
+			Error:   err.Error(),
+		})
+	}
+	if req.OrderedIDs == nil {
+		return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
+			Message: "ordered_ids is required (use an empty array if the program has no courses)",
+			Error:   "missing ordered_ids",
+		})
+	}
+	if err := h.courseSvc.ReorderInProgram(c.Context(), programID, req.OrderedIDs); err != nil {
+		if errors.Is(err, programs.ErrProgramNotFound) {
+			return c.Status(fiber.StatusNotFound).JSON(domain.ErrorResponse{
+				Message: "Program not found",
+				Error:   err.Error(),
+			})
+		}
+		if errors.Is(err, domain.ErrReorderInvalidIDSet) {
+			return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
+				Message: err.Error(),
+				Error:   "INVALID_REORDER",
+			})
+		}
+		return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+			Message: "Failed to reorder courses",
+			Error:   err.Error(),
+		})
+	}
+	actorID := c.Locals("user_id").(int64)
+	actorRole := string(c.Locals("role").(domain.Role))
+	ip := c.IP()
+	ua := c.Get("User-Agent")
+	msg := "Reordered courses in program"
+	go h.activityLogSvc.RecordAction(context.Background(), &actorID, &actorRole, domain.ActionCourseUpdated, domain.ResourceProgram, &programID, msg, nil, &ip, &ua)
+
+	return c.JSON(domain.Response{
+		Message:    "Courses reordered successfully",
+		Success:    true,
+		StatusCode: fiber.StatusOK,
+	})
+}
+
+// ReorderModulesInCourse godoc
+// @Summary Reorder modules within a course
+// @Param courseId path int true "Course ID"
+// @Param body body domain.ReorderIDsRequest true "ordered_ids: every module id in this course, in the new order"
+// @Tags modules
+// @Router /api/v1/courses/{courseId}/modules/reorder [put]
+func (h *Handler) ReorderModulesInCourse(c *fiber.Ctx) error {
+	courseID, err := strconv.ParseInt(c.Params("courseId"), 10, 64)
+	if err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
+			Message: "Invalid course id",
+			Error:   err.Error(),
+		})
+	}
+	var req domain.ReorderIDsRequest
+	if err := c.BodyParser(&req); err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
+			Message: "Invalid request body",
+			Error:   err.Error(),
+		})
+	}
+	if req.OrderedIDs == nil {
+		return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
+			Message: "ordered_ids is required (use an empty array if the course has no modules)",
+			Error:   "missing ordered_ids",
+		})
+	}
+	if err := h.moduleSvc.ReorderInCourse(c.Context(), courseID, req.OrderedIDs); err != nil {
+		if errors.Is(err, courses.ErrCourseNotFound) {
+			return c.Status(fiber.StatusNotFound).JSON(domain.ErrorResponse{
+				Message: "Course not found",
+				Error:   err.Error(),
+			})
+		}
+		if errors.Is(err, domain.ErrReorderInvalidIDSet) {
+			return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
+				Message: err.Error(),
+				Error:   "INVALID_REORDER",
+			})
+		}
+		return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+			Message: "Failed to reorder modules",
+			Error:   err.Error(),
+		})
+	}
+	actorID := c.Locals("user_id").(int64)
+	actorRole := string(c.Locals("role").(domain.Role))
+	ip := c.IP()
+	ua := c.Get("User-Agent")
+	go h.activityLogSvc.RecordAction(context.Background(), &actorID, &actorRole, domain.ActionModuleUpdated, domain.ResourceCourse, &courseID, "Reordered modules in course", nil, &ip, &ua)
+
+	return c.JSON(domain.Response{
+		Message:    "Modules reordered successfully",
+		Success:    true,
+		StatusCode: fiber.StatusOK,
+	})
+}

internal/web_server/handlers/module_handler.go

@@ -103,6 +103,16 @@ func (h *Handler) ListModulesByCourse(c *fiber.Ctx) error {
 			Error:   err.Error(),
 		})
 	}
+	uid := c.Locals("user_id").(int64)
+	role := c.Locals("role").(domain.Role)
+	for i := range items {
+		if err := h.lmsProgressSvc.ApplyAccessModule(c.Context(), role, uid, &items[i]); err != nil {
+			return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+				Message: "Failed to build module list",
+				Error:   err.Error(),
+			})
+		}
+	}
 	return c.JSON(domain.Response{
 		Message: "Modules retrieved successfully",
 		Data: fiber.Map{
@@ -142,6 +152,17 @@ func (h *Handler) GetModule(c *fiber.Ctx) error {
 			Error:   err.Error(),
 		})
 	}
+	uid := c.Locals("user_id").(int64)
+	role := c.Locals("role").(domain.Role)
+	if err := h.lmsProgressSvc.ApplyAccessModule(c.Context(), role, uid, &mod); err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+			Message: "Failed to evaluate module access",
+			Error:   err.Error(),
+		})
+	}
+	if err := lmsBlockIfInaccessible(c, mod.Access); err != nil {
+		return err
+	}
 	return c.JSON(domain.Response{
 		Message:    "Module retrieved successfully",
 		Data:       mod,

internal/web_server/handlers/program_handler.go

@@ -76,6 +76,16 @@ func (h *Handler) ListPrograms(c *fiber.Ctx) error {
 			Error:   err.Error(),
 		})
 	}
+	uid := c.Locals("user_id").(int64)
+	role := c.Locals("role").(domain.Role)
+	for i := range items {
+		if err := h.lmsProgressSvc.ApplyAccessProgram(c.Context(), role, uid, &items[i]); err != nil {
+			return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+				Message: "Failed to build program list",
+				Error:   err.Error(),
+			})
+		}
+	}
 	return c.JSON(domain.Response{
 		Message: "Programs retrieved successfully",
 		Data: fiber.Map{
@@ -118,6 +128,17 @@ func (h *Handler) GetProgram(c *fiber.Ctx) error {
 			Error:   err.Error(),
 		})
 	}
+	uid := c.Locals("user_id").(int64)
+	role := c.Locals("role").(domain.Role)
+	if err := h.lmsProgressSvc.ApplyAccessProgram(c.Context(), role, uid, &p); err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+			Message: "Failed to evaluate program access",
+			Error:   err.Error(),
+		})
+	}
+	if err := lmsBlockIfInaccessible(c, p.Access); err != nil {
+		return err
+	}
 	return c.JSON(domain.Response{
 		Message:    "Program retrieved successfully",
 		Data:       p,

internal/web_server/routes.go

@@ -19,6 +19,7 @@ func (a *App) initAppRoutes() {
 		a.courseSvc,
 		a.moduleSvc,
 		a.lessonSvc,
+		a.lmsProgressSvc,
 		a.practiceSvc,
 		a.subscriptionsSvc,
 		a.arifpaySvc,
@@ -74,18 +75,22 @@ func (a *App) initAppRoutes() {
 	// Programs (LMS top-level)
 	groupV1.Post("/programs", a.authMiddleware, a.RequirePermission("programs.create"), h.CreateProgram)
 	groupV1.Get("/programs", a.authMiddleware, a.RequirePermission("programs.list"), h.ListPrograms)
+	groupV1.Put("/programs/reorder", a.authMiddleware, a.RequirePermission("programs.reorder"), h.ReorderPrograms)
+	groupV1.Get("/lms/progress", a.authMiddleware, a.RequirePermission("lms.get_my_progress"), h.GetMyLMSProgress)
 	groupV1.Get("/programs/:id", a.authMiddleware, a.RequirePermission("programs.get"), h.GetProgram)
 	groupV1.Put("/programs/:id", a.authMiddleware, a.RequirePermission("programs.update"), h.UpdateProgram)
 	groupV1.Delete("/programs/:id", a.authMiddleware, a.RequirePermission("programs.delete"), h.DeleteProgram)
 
 	// Courses
 	groupV1.Post("/programs/:id/courses", a.authMiddleware, a.RequirePermission("courses.create"), h.CreateCourse)
+	groupV1.Put("/programs/:id/courses/reorder", a.authMiddleware, a.RequirePermission("courses.reorder"), h.ReorderCoursesInProgram)
 	groupV1.Get("/programs/:id/courses", a.authMiddleware, a.RequirePermission("courses.list_by_program"), h.ListCoursesByProgram)
 	groupV1.Get("/courses/:id/practices", a.authMiddleware, a.RequirePermission("practices.list"), h.ListPracticesByCourse)
 	groupV1.Get("/courses/:id", a.authMiddleware, a.RequirePermission("courses.get"), h.GetCourse)
 	groupV1.Put("/courses/:id", a.authMiddleware, a.RequirePermission("courses.update"), h.UpdateCourse)
 	groupV1.Delete("/courses/:id", a.authMiddleware, a.RequirePermission("courses.delete"), h.DeleteCourse)
 	groupV1.Post("/courses/:courseId/modules", a.authMiddleware, a.RequirePermission("modules.create"), h.CreateModule)
+	groupV1.Put("/courses/:courseId/modules/reorder", a.authMiddleware, a.RequirePermission("modules.reorder"), h.ReorderModulesInCourse)
 	groupV1.Get("/courses/:courseId/modules", a.authMiddleware, a.RequirePermission("modules.list_by_course"), h.ListModulesByCourse)
 
 	// /modules/:moduleId/lessons before /modules/:id; /modules/:id/practices before /modules/:id
@@ -96,6 +101,7 @@ func (a *App) initAppRoutes() {
 	groupV1.Put("/modules/:id", a.authMiddleware, a.RequirePermission("modules.update"), h.UpdateModule)
 	groupV1.Delete("/modules/:id", a.authMiddleware, a.RequirePermission("modules.delete"), h.DeleteModule)
 	groupV1.Get("/lessons/:id/practices", a.authMiddleware, a.RequirePermission("practices.list"), h.ListPracticesByLesson)
+	groupV1.Post("/lessons/:id/complete", a.authMiddleware, a.RequirePermission("lessons.complete"), h.CompleteLesson)
 	groupV1.Get("/lessons/:id", a.authMiddleware, a.RequirePermission("lessons.get"), h.GetLesson)
 	groupV1.Put("/lessons/:id", a.authMiddleware, a.RequirePermission("lessons.update"), h.UpdateLesson)
 	groupV1.Delete("/lessons/:id", a.authMiddleware, a.RequirePermission("lessons.delete"), h.DeleteLesson)