Yimaru-Admin/src/pages/content-management/SubCoursesPage.tsx

1106 lines
44 KiB
TypeScript

import { useEffect, useState, useRef } from "react";
import { Link, useParams, useNavigate } from "react-router-dom";
import {
ArrowLeft,
ToggleLeft,
ToggleRight,
MoreVertical,
X,
Trash2,
AlertCircle,
Edit,
Link2,
Plus,
LayoutGrid,
GitBranch,
ChevronDown,
Lock,
ArrowRight,
} from "lucide-react";
import practiceSrc from "../../assets/Practice.svg";
import spinnerSrc from "../../assets/Circular-indeterminate progress indicator.svg";
import { Card, CardContent } from "../../components/ui/card";
import alertSrc from "../../assets/Alert.svg";
import { Badge } from "../../components/ui/badge";
import { Button } from "../../components/ui/button";
import {
getSubCoursesByCourse,
getCoursesByCategory,
getCourseCategories,
createSubCourse,
updateSubCourse,
updateSubCourseStatus,
deleteSubCourse,
getSubCoursePrerequisites,
addSubCoursePrerequisite,
removeSubCoursePrerequisite,
} from "../../api/courses.api";
import { uploadImageFile } from "../../api/files.api";
import { Input } from "../../components/ui/input";
import { FileUpload } from "../../components/ui/file-upload";
import type {
SubCourse,
Course,
CourseCategory,
SubCoursePrerequisite,
} from "../../types/course.types";
import { SpinnerIcon } from "../../components/ui/spinner-icon";
import { toast } from "sonner";
export function SubCoursesPage() {
const { categoryId, courseId } = useParams<{
categoryId: string;
courseId: string;
}>();
const navigate = useNavigate();
const [subCourses, setSubCourses] = useState<SubCourse[]>([]);
const [course, setCourse] = useState<Course | null>(null);
const [category, setCategory] = useState<CourseCategory | null>(null);
const [loading, setLoading] = useState(true);
const [error, setError] = useState<string | null>(null);
const [openMenuId, setOpenMenuId] = useState<number | null>(null);
const [togglingId, setTogglingId] = useState<number | null>(null);
const [showDeleteModal, setShowDeleteModal] = useState(false);
const [subCourseToDelete, setSubCourseToDelete] = useState<SubCourse | null>(
null,
);
const [deleting, setDeleting] = useState(false);
const menuRef = useRef<HTMLDivElement>(null);
const [showAddModal, setShowAddModal] = useState(false);
const [showEditModal, setShowEditModal] = useState(false);
const [subCourseToEdit, setSubCourseToEdit] = useState<SubCourse | null>(
null,
);
const [title, setTitle] = useState("");
const [description, setDescription] = useState("");
const [level, setLevel] = useState("BEGINNER");
const [subLevel, setSubLevel] = useState("");
const [thumbnailUrl, setThumbnailUrl] = useState("");
const [thumbnailFile, setThumbnailFile] = useState<File | null>(null);
const [displayOrder, setDisplayOrder] = useState("1");
const [saving, setSaving] = useState(false);
const [saveError, setSaveError] = useState<string | null>(null);
// View mode
const [viewMode, setViewMode] = useState<"grid" | "flow">("grid");
// All prerequisites map: subCourseId -> prerequisites[]
const [allPrereqMap, setAllPrereqMap] = useState<
Record<number, SubCoursePrerequisite[]>
>({});
const [allPrereqLoading, setAllPrereqLoading] = useState(false);
// Prerequisites state
const [showPrereqModal, setShowPrereqModal] = useState(false);
const [prereqSubCourse, setPrereqSubCourse] = useState<SubCourse | null>(
null,
);
const [prerequisites, setPrerequisites] = useState<SubCoursePrerequisite[]>(
[],
);
const [prereqLoading, setPrereqLoading] = useState(false);
const [prereqAdding, setPrereqAdding] = useState(false);
const [prereqRemoving, setPrereqRemoving] = useState<number | null>(null);
const [selectedPrereqId, setSelectedPrereqId] = useState<number | 0>(0);
useEffect(() => {
const handleClickOutside = (event: MouseEvent) => {
if (menuRef.current && !menuRef.current.contains(event.target as Node)) {
setOpenMenuId(null);
}
};
if (openMenuId !== null) {
document.addEventListener("mousedown", handleClickOutside);
}
return () => document.removeEventListener("mousedown", handleClickOutside);
}, [openMenuId]);
const fetchSubCourses = async () => {
if (!courseId) return;
try {
const subCoursesRes = await getSubCoursesByCourse(Number(courseId));
setSubCourses(subCoursesRes.data.data.sub_courses ?? []);
} catch (err) {
console.error("Failed to fetch sub-courses:", err);
}
};
const fetchAllPrerequisites = async (scs: SubCourse[]) => {
if (scs.length === 0) return;
setAllPrereqLoading(true);
try {
const results = await Promise.all(
scs.map((sc) =>
getSubCoursePrerequisites(sc.id).then((res) => ({
id: sc.id,
data: res.data.data ?? [],
})),
),
);
const map: Record<number, SubCoursePrerequisite[]> = {};
for (const r of results) {
map[r.id] = r.data;
}
setAllPrereqMap(map);
} catch (err) {
console.error("Failed to fetch all prerequisites:", err);
} finally {
setAllPrereqLoading(false);
}
};
useEffect(() => {
const fetchData = async () => {
if (!courseId || !categoryId) return;
try {
const [subCoursesRes, coursesRes, categoriesRes] = await Promise.all([
getSubCoursesByCourse(Number(courseId)),
getCoursesByCategory(Number(categoryId)),
getCourseCategories(),
]);
setSubCourses(subCoursesRes.data.data.sub_courses ?? []);
const foundCourse = coursesRes.data.data.courses?.find(
(c) => c.id === Number(courseId),
);
setCourse(foundCourse ?? null);
const foundCategory = categoriesRes.data.data.categories?.find(
(c) => c.id === Number(categoryId),
);
setCategory(foundCategory ?? null);
} catch (err) {
console.error("Failed to fetch sub-courses:", err);
setError("Failed to load courses");
} finally {
setLoading(false);
}
};
fetchData();
}, [courseId, categoryId]);
useEffect(() => {
if (subCourses.length > 0) {
fetchAllPrerequisites(subCourses);
}
}, [subCourses]);
const handleToggleStatus = async (subCourse: SubCourse) => {
setTogglingId(subCourse.id);
try {
await updateSubCourseStatus(subCourse.id, {
is_active: !subCourse.is_active,
level: subCourse.level,
title: subCourse.title,
});
await fetchSubCourses();
} catch (err) {
console.error("Failed to update sub-course status:", err);
} finally {
setTogglingId(null);
}
};
const handleDeleteClick = (subCourse: SubCourse) => {
setSubCourseToDelete(subCourse);
setShowDeleteModal(true);
};
const handleConfirmDelete = async () => {
if (!subCourseToDelete) return;
setDeleting(true);
try {
await deleteSubCourse(subCourseToDelete.id);
setShowDeleteModal(false);
setSubCourseToDelete(null);
await fetchSubCourses();
} catch (err) {
console.error("Failed to delete sub-course:", err);
} finally {
setDeleting(false);
}
};
const nextSubCourseDisplayOrder = () =>
subCourses.length === 0
? 1
: Math.max(0, ...subCourses.map((s) => s.display_order ?? 0)) + 1;
const handleAddSubCourse = () => {
setTitle("");
setDescription("");
setLevel("BEGINNER");
setSubLevel("");
setThumbnailUrl("");
setThumbnailFile(null);
setDisplayOrder(String(nextSubCourseDisplayOrder()));
setSaveError(null);
setShowAddModal(true);
};
const handleSaveNewSubCourse = async () => {
if (!courseId) return;
setSaving(true);
setSaveError(null);
try {
let thumbnail = thumbnailUrl.trim();
if (thumbnailFile) {
const uploadRes = await uploadImageFile(thumbnailFile);
const uploadedUrl = uploadRes.data?.data?.url?.trim();
if (!uploadedUrl) throw new Error("Missing uploaded image url");
thumbnail = uploadedUrl;
}
const parsedOrder = parseInt(displayOrder, 10);
const display_order = Number.isFinite(parsedOrder) && parsedOrder >= 0
? parsedOrder
: nextSubCourseDisplayOrder();
await createSubCourse({
course_id: Number(courseId),
title: title.trim(),
description: description.trim(),
thumbnail,
display_order,
level: level.trim() || "BEGINNER",
sub_level: subLevel.trim(),
});
setShowAddModal(false);
setTitle("");
setDescription("");
setLevel("BEGINNER");
setSubLevel("");
setThumbnailUrl("");
setThumbnailFile(null);
setDisplayOrder("1");
await fetchSubCourses();
toast.success("Course created successfully");
} catch (err: unknown) {
console.error("Failed to create sub-course:", err);
const msg =
(err as { response?: { data?: { message?: string } } })?.response?.data?.message ??
"Failed to create course";
setSaveError(msg);
toast.error(msg);
} finally {
setSaving(false);
}
};
const handleEditClick = (subCourse: SubCourse) => {
setSubCourseToEdit(subCourse);
setTitle(subCourse.title);
setDescription(subCourse.description);
setLevel(subCourse.level);
setSaveError(null);
setShowEditModal(true);
};
const handleSaveEditSubCourse = async () => {
if (!subCourseToEdit) return;
setSaving(true);
setSaveError(null);
try {
await updateSubCourse(subCourseToEdit.id, {
title,
description,
level,
});
setShowEditModal(false);
setSubCourseToEdit(null);
setTitle("");
setDescription("");
setLevel("");
await fetchSubCourses();
} catch (err) {
console.error("Failed to update sub-course:", err);
setSaveError("Failed to update course");
} finally {
setSaving(false);
}
};
const handleSubCourseClick = (subCourseId: number) => {
navigate(
`/content/category/${categoryId}/courses/${courseId}/sub-courses/${subCourseId}`,
);
};
const handlePrereqClick = async (subCourse: SubCourse) => {
setPrereqSubCourse(subCourse);
setShowPrereqModal(true);
setPrereqLoading(true);
setSelectedPrereqId(0);
try {
const res = await getSubCoursePrerequisites(subCourse.id);
setPrerequisites(res.data.data ?? []);
} catch (err) {
console.error("Failed to fetch prerequisites:", err);
setPrerequisites([]);
} finally {
setPrereqLoading(false);
}
};
const handleAddPrerequisite = async () => {
if (!prereqSubCourse || !selectedPrereqId) return;
setPrereqAdding(true);
try {
await addSubCoursePrerequisite(prereqSubCourse.id, {
prerequisite_sub_course_id: selectedPrereqId,
});
const res = await getSubCoursePrerequisites(prereqSubCourse.id);
setPrerequisites(res.data.data ?? []);
setSelectedPrereqId(0);
} catch (err) {
console.error("Failed to add prerequisite:", err);
} finally {
setPrereqAdding(false);
}
};
const handleRemovePrerequisite = async (prereqId: number) => {
if (!prereqSubCourse) return;
setPrereqRemoving(prereqId);
try {
await removeSubCoursePrerequisite(prereqSubCourse.id, prereqId);
const res = await getSubCoursePrerequisites(prereqSubCourse.id);
setPrerequisites(res.data.data ?? []);
} catch (err) {
console.error("Failed to remove prerequisite:", err);
} finally {
setPrereqRemoving(null);
}
};
// Build flow layers using topological sort
const flowLayers = (() => {
if (subCourses.length === 0) return [];
// Find sub-courses with no prerequisites (roots)
const hasPrereqs = new Set<number>();
const isPrereqOf = new Map<number, number[]>(); // prereqId -> [subCourseIds that depend on it]
for (const sc of subCourses) {
const prereqs = allPrereqMap[sc.id] ?? [];
if (prereqs.length > 0) {
hasPrereqs.add(sc.id);
}
for (const p of prereqs) {
const dependents = isPrereqOf.get(p.prerequisite_sub_course_id) ?? [];
dependents.push(sc.id);
isPrereqOf.set(p.prerequisite_sub_course_id, dependents);
}
}
// BFS-based layering
const layers: SubCourse[][] = [];
const placed = new Set<number>();
// Layer 0: no prerequisites
const roots = subCourses.filter((sc) => !hasPrereqs.has(sc.id));
if (roots.length > 0) {
layers.push(roots);
roots.forEach((sc) => placed.add(sc.id));
}
// Subsequent layers: all prereqs already placed
let maxIterations = subCourses.length;
while (placed.size < subCourses.length && maxIterations-- > 0) {
const nextLayer = subCourses.filter((sc) => {
if (placed.has(sc.id)) return false;
const prereqs = allPrereqMap[sc.id] ?? [];
return prereqs.every((p) => placed.has(p.prerequisite_sub_course_id));
});
if (nextLayer.length === 0) {
// Remaining have circular deps or missing prereqs — just add them
const remaining = subCourses.filter((sc) => !placed.has(sc.id));
if (remaining.length > 0) layers.push(remaining);
break;
}
layers.push(nextLayer);
nextLayer.forEach((sc) => placed.add(sc.id));
}
return layers;
})();
const availablePrerequisites = subCourses.filter(
(sc) =>
prereqSubCourse &&
sc.id !== prereqSubCourse.id &&
!prerequisites.some((p) => p.prerequisite_sub_course_id === sc.id),
);
if (loading) {
return (
<div className="flex flex-col items-center justify-center py-24">
<img src={spinnerSrc} alt="" className="h-10 w-10 animate-spin" />
</div>
);
}
if (error) {
return (
<div className="flex items-center justify-center py-24">
<div className="mx-4 flex w-full max-w-md items-center gap-3 rounded-xl border border-red-100 bg-red-50 px-5 py-4 shadow-md">
<img src={alertSrc} alt="" className="h-10 w-10 shrink-0" />
<p className="text-sm font-medium text-red-600">{error}</p>
</div>
</div>
);
}
return (
<div className="space-y-6">
{/* Header */}
<div className="flex flex-col gap-4 sm:flex-row sm:items-start sm:justify-between">
<div className="flex items-start gap-3 min-w-0">
<Link
to={`/content/category/${categoryId}/courses`}
className="mt-1 grid h-9 w-9 shrink-0 place-items-center rounded-xl border border-grayScale-200 bg-white text-grayScale-500 shadow-sm transition-all hover:border-brand-200 hover:bg-brand-50 hover:text-brand-600 hover:shadow-md"
>
<ArrowLeft className="h-4 w-4" />
</Link>
<div className="min-w-0">
<div className="mb-1 flex items-center gap-1.5 text-xs font-medium text-grayScale-400">
<span className="truncate max-w-[100px] rounded bg-grayScale-50 px-1.5 py-0.5 sm:max-w-none">
{category?.name}
</span>
<span className="shrink-0 text-grayScale-300"></span>
<span className="truncate max-w-[100px] rounded bg-grayScale-50 px-1.5 py-0.5 sm:max-w-none">
{course?.title}
</span>
</div>
<h1 className="text-2xl font-bold tracking-tight text-grayScale-700">
Courses
</h1>
<p className="mt-0.5 text-sm text-grayScale-400">
{subCourses.length} course{subCourses.length !== 1 ? "s" : ""}{" "}
available
</p>
</div>
</div>
<div className="flex items-center gap-2">
{subCourses.length > 0 && (
<div className="flex rounded-xl border border-grayScale-200 bg-white p-0.5 shadow-sm">
<button
onClick={() => setViewMode("grid")}
className={`flex items-center gap-1.5 rounded-lg px-3 py-1.5 text-xs font-medium transition-all ${
viewMode === "grid"
? "bg-brand-500 text-white shadow-sm"
: "text-grayScale-500 hover:text-grayScale-700"
}`}
>
<LayoutGrid className="h-3.5 w-3.5" />
Grid
</button>
<button
onClick={() => setViewMode("flow")}
className={`flex items-center gap-1.5 rounded-lg px-3 py-1.5 text-xs font-medium transition-all ${
viewMode === "flow"
? "bg-brand-500 text-white shadow-sm"
: "text-grayScale-500 hover:text-grayScale-700"
}`}
>
<GitBranch className="h-3.5 w-3.5" />
Flow
</button>
</div>
)}
<Button
className="w-full rounded-xl bg-brand-500 px-5 shadow-sm transition-all hover:bg-brand-600 hover:shadow-md sm:w-auto"
onClick={handleAddSubCourse}
>
Add New Course
</Button>
</div>
</div>
{/* Sub-course grid or empty state */}
{subCourses.length === 0 ? (
<Card className="border border-dashed border-grayScale-200 shadow-none">
<CardContent className="flex flex-col items-center justify-center py-16">
<img src={practiceSrc} alt="" className="h-20 w-20" />
<h3 className="mt-5 text-base font-semibold text-grayScale-600">
No courses yet
</h3>
<p className="mt-1.5 max-w-xs text-center text-sm text-grayScale-400">
Get started by adding your first course to this sub-category
</p>
<Button
className="mt-5 rounded-xl bg-brand-500 px-5 shadow-sm hover:bg-brand-600 hover:shadow-md"
onClick={handleAddSubCourse}
>
Add your first course
</Button>
</CardContent>
</Card>
) : (
<div className="grid grid-cols-1 gap-5 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4">
{subCourses.map((subCourse, index) => {
const gradients = [
"bg-gradient-to-br from-blue-100 to-blue-200",
"bg-gradient-to-br from-purple-100 to-purple-200",
"bg-gradient-to-br from-green-100 to-green-200",
"bg-gradient-to-br from-yellow-100 to-yellow-200",
];
return (
<Card
key={subCourse.id}
className="group cursor-pointer overflow-hidden border border-grayScale-100 bg-white shadow-sm transition-all duration-200 hover:shadow-soft hover:-translate-y-1 hover:border-brand-100"
onClick={() => handleSubCourseClick(subCourse.id)}
>
{/* Thumbnail with level badge */}
<div className="relative aspect-video w-full overflow-hidden">
{subCourse.thumbnail ? (
<img
src={subCourse.thumbnail}
alt={subCourse.title}
className="h-full w-full object-cover rounded-t-lg transition-transform duration-300 group-hover:scale-105"
/>
) : (
<div
className={`h-full w-full rounded-t-lg transition-transform duration-300 group-hover:scale-105 ${gradients[index % gradients.length]}`}
/>
)}
{subCourse.level && (
<div className="absolute bottom-2.5 right-2.5 rounded-md bg-brand-600/90 px-2.5 py-1 text-xs font-semibold tracking-wide text-white shadow-sm backdrop-blur-sm">
{subCourse.level}
</div>
)}
</div>
{/* Content */}
<div className="flex flex-col gap-3 p-4">
{/* Status and menu */}
<div className="flex items-center justify-between">
<Badge
className={`rounded-full px-2.5 py-0.5 text-[11px] font-semibold uppercase tracking-wider ${
subCourse.is_active
? "border border-green-200 bg-green-50 text-green-700"
: "border border-grayScale-200 bg-grayScale-50 text-grayScale-500"
}`}
>
<span
className={`mr-1.5 inline-block h-1.5 w-1.5 rounded-full ${subCourse.is_active ? "bg-green-500" : "bg-grayScale-400"}`}
/>
{subCourse.is_active ? "Active" : "Inactive"}
</Badge>
<div
className="relative"
ref={openMenuId === subCourse.id ? menuRef : undefined}
onClick={(e) => e.stopPropagation()}
>
<button
onClick={() =>
setOpenMenuId(
openMenuId === subCourse.id ? null : subCourse.id,
)
}
className="grid h-7 w-7 place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-grayScale-100 hover:text-grayScale-600"
>
<MoreVertical className="h-4 w-4" />
</button>
{openMenuId === subCourse.id && (
<div className="absolute right-0 top-full z-10 mt-1.5 w-44 overflow-hidden rounded-xl border border-grayScale-100 bg-white py-1 shadow-lg">
<button
onClick={() => {
handlePrereqClick(subCourse);
setOpenMenuId(null);
}}
className="flex w-full items-center gap-2.5 px-4 py-2.5 text-sm text-grayScale-600 transition-colors hover:bg-grayScale-50"
>
<Link2 className="h-4 w-4" />
Prerequisites
</button>
<div className="mx-3 border-t border-grayScale-100" />
<button
onClick={() => {
handleToggleStatus(subCourse);
setOpenMenuId(null);
}}
disabled={togglingId === subCourse.id}
className="flex w-full items-center gap-2.5 px-4 py-2.5 text-sm text-grayScale-600 transition-colors hover:bg-grayScale-50 disabled:opacity-50"
>
{subCourse.is_active ? (
<>
<ToggleLeft className="h-4 w-4" />
Deactivate
</>
) : (
<>
<ToggleRight className="h-4 w-4" />
Activate
</>
)}
</button>
<div className="mx-3 border-t border-grayScale-100" />
<button
onClick={() => {
handleDeleteClick(subCourse);
setOpenMenuId(null);
}}
className="flex w-full items-center gap-2.5 px-4 py-2.5 text-sm text-red-500 transition-colors hover:bg-red-50"
>
<Trash2 className="h-4 w-4" />
Delete
</button>
</div>
)}
</div>
</div>
{/* Title */}
<div>
<h3 className="font-semibold text-grayScale-700 group-hover:text-brand-600 transition-colors">
{subCourse.title}
</h3>
<p className="mt-1 text-sm leading-relaxed text-grayScale-400 line-clamp-2">
{subCourse.description || "No description available"}
</p>
</div>
{/* Edit button */}
<Button
variant="outline"
className="mt-auto w-full rounded-lg border-grayScale-200 text-grayScale-500 transition-all hover:border-brand-200 hover:bg-brand-50 hover:text-brand-600"
onClick={(e) => {
e.stopPropagation();
handleEditClick(subCourse);
}}
>
<Edit className="mr-2 h-3.5 w-3.5" />
Edit
</Button>
</div>
</Card>
);
})}
</div>
)}
{/* Delete Modal */}
{showDeleteModal && subCourseToDelete && (
<div className="fixed inset-0 z-50 flex items-center justify-center overflow-y-auto overflow-x-hidden bg-black/40 p-3 backdrop-blur-sm sm:p-6">
<div className="my-auto w-full max-w-sm rounded-2xl bg-white shadow-2xl">
<div className="flex items-center justify-between border-b border-grayScale-100 px-6 py-4">
<h2 className="text-lg font-semibold text-grayScale-700">
Delete Course
</h2>
<button
onClick={() => setShowDeleteModal(false)}
className="grid h-8 w-8 place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-grayScale-100 hover:text-grayScale-600"
>
<X className="h-5 w-5" />
</button>
</div>
<div className="px-6 py-6">
<div className="mx-auto mb-4 grid h-12 w-12 place-items-center rounded-full bg-red-50">
<Trash2 className="h-5 w-5 text-red-500" />
</div>
<p className="text-center text-sm leading-relaxed text-grayScale-600">
Are you sure you want to delete{" "}
<span className="font-semibold text-grayScale-700">
{subCourseToDelete.title}
</span>
? This action cannot be undone.
</p>
</div>
<div className="flex flex-col-reverse gap-3 border-t border-grayScale-100 px-6 py-4 sm:flex-row sm:justify-end">
<Button
variant="outline"
onClick={() => setShowDeleteModal(false)}
disabled={deleting}
className="w-full rounded-lg sm:w-auto"
>
Cancel
</Button>
<Button
className="w-full rounded-lg bg-red-500 shadow-sm hover:bg-red-600 sm:w-auto"
onClick={handleConfirmDelete}
disabled={deleting}
>
{deleting ? "Deleting..." : "Delete"}
</Button>
</div>
</div>
</div>
)}
{/* Add Sub-course Modal — POST /course-management/sub-courses */}
{showAddModal && (
<div className="fixed inset-0 z-50 flex items-center justify-center overflow-y-auto overflow-x-hidden bg-black/40 p-3 backdrop-blur-sm sm:p-6">
<div
role="dialog"
aria-modal="true"
className="my-auto w-full max-w-4xl flex-shrink-0 rounded-2xl bg-white shadow-2xl"
>
<div className="flex items-center justify-between border-b border-grayScale-100 px-4 py-3 sm:px-6 sm:py-4">
<h2 className="text-base font-semibold text-grayScale-700 sm:text-lg">
Add New Course
</h2>
<button
type="button"
onClick={() => setShowAddModal(false)}
className="grid h-10 w-10 min-h-[44px] min-w-[44px] place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-grayScale-100 hover:text-grayScale-600 sm:h-8 sm:w-8 sm:min-h-0 sm:min-w-0"
>
<X className="h-5 w-5" />
</button>
</div>
<div className="max-h-[min(78vh,840px)] overflow-y-auto px-4 py-5 sm:px-6 sm:py-6">
<div className="grid grid-cols-1 gap-4 md:grid-cols-2 md:gap-x-6 md:gap-y-4">
<div className="space-y-1.5 md:col-span-2">
<label className="text-sm font-semibold text-grayScale-600">
Title
</label>
<Input
value={title}
onChange={(e) => setTitle(e.target.value)}
placeholder="Enter course title"
className="min-h-[44px]"
/>
</div>
<div className="space-y-1.5 md:col-span-2">
<label className="text-sm font-semibold text-grayScale-600">
Description
</label>
<textarea
value={description}
onChange={(e) => setDescription(e.target.value)}
placeholder="Enter course description"
className="w-full rounded-lg border border-grayScale-200 px-3 py-2.5 text-sm transition-colors focus:border-brand-500 focus:outline-none focus:ring-2 focus:ring-brand-500/20"
rows={3}
/>
</div>
<div className="space-y-1.5">
<label className="text-sm font-semibold text-grayScale-600">
Level
</label>
<select
value={level}
onChange={(e) => setLevel(e.target.value)}
className="min-h-[44px] w-full rounded-lg border border-grayScale-200 bg-white px-3 py-2.5 text-sm transition-colors focus:border-brand-500 focus:outline-none focus:ring-2 focus:ring-brand-500/20"
>
<option value="BEGINNER">BEGINNER</option>
<option value="INTERMEDIATE">INTERMEDIATE</option>
<option value="ADVANCED">ADVANCED</option>
<option value="EXPERT">EXPERT</option>
</select>
</div>
<div className="space-y-1.5">
<label className="text-sm font-semibold text-grayScale-600">
Sub-level
</label>
<Input
value={subLevel}
onChange={(e) => setSubLevel(e.target.value)}
placeholder='e.g. A1, B2 (CEFR or your scale)'
className="min-h-[44px]"
/>
</div>
<div className="space-y-1.5 md:col-span-2 md:max-w-xs">
<label className="text-sm font-semibold text-grayScale-600">
Display order
</label>
<Input
type="number"
min={0}
value={displayOrder}
onChange={(e) => setDisplayOrder(e.target.value)}
placeholder="1"
className="min-h-[44px]"
/>
</div>
<div className="space-y-3 md:col-span-2">
<label className="text-sm font-semibold text-grayScale-600">
Thumbnail
</label>
<div className="grid grid-cols-1 gap-4 lg:grid-cols-2 lg:items-start">
<FileUpload
variant="compact"
accept="image/*"
onFileSelect={setThumbnailFile}
label="Upload thumbnail image"
description="JPEG, PNG, WEBP — or paste a URL"
className="border-grayScale-200 transition-colors hover:border-brand-400 hover:bg-brand-50/30"
/>
<div className="space-y-1.5">
<span className="text-xs font-medium text-grayScale-500">
Thumbnail URL (optional)
</span>
<Input
value={thumbnailUrl}
onChange={(e) => setThumbnailUrl(e.target.value)}
placeholder="https://..."
className="min-h-[44px]"
/>
</div>
</div>
</div>
{saveError && (
<div className="flex items-center gap-2 rounded-lg border border-red-100 bg-red-50 px-4 py-2.5 text-sm font-medium text-red-600 md:col-span-2">
<AlertCircle className="h-4 w-4 shrink-0" />
{saveError}
</div>
)}
</div>
</div>
<div className="flex flex-col-reverse gap-3 border-t border-grayScale-100 px-4 py-4 sm:flex-row sm:justify-end sm:px-6">
<Button
variant="outline"
onClick={() => setShowAddModal(false)}
disabled={saving}
className="w-full rounded-lg sm:w-auto"
>
Cancel
</Button>
<Button
className="w-full rounded-lg bg-brand-500 shadow-sm hover:bg-brand-600 sm:w-auto"
onClick={handleSaveNewSubCourse}
disabled={saving || !title.trim()}
>
{saving ? "Saving..." : "Save"}
</Button>
</div>
</div>
</div>
)}
{/* Prerequisites Modal */}
{showPrereqModal && prereqSubCourse && (
<div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 backdrop-blur-sm">
<div className="mx-4 w-full max-w-lg rounded-2xl bg-white shadow-2xl">
<div className="flex items-center justify-between border-b border-grayScale-100 px-6 py-4">
<div>
<h2 className="text-lg font-semibold text-grayScale-700">
Prerequisites
</h2>
<p className="mt-0.5 text-sm text-grayScale-400">
Manage prerequisites for{" "}
<span className="font-medium text-grayScale-600">
{prereqSubCourse.title}
</span>
</p>
</div>
<button
onClick={() => setShowPrereqModal(false)}
className="grid h-8 w-8 place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-grayScale-100 hover:text-grayScale-600"
>
<X className="h-5 w-5" />
</button>
</div>
<div className="px-6 py-5">
{/* Add prerequisite */}
{availablePrerequisites.length > 0 && (
<div className="mb-5">
<label className="mb-1.5 block text-sm font-semibold text-grayScale-600">
Add Prerequisite
</label>
<div className="flex gap-2">
<select
value={selectedPrereqId}
onChange={(e) =>
setSelectedPrereqId(Number(e.target.value))
}
className="flex-1 rounded-lg border border-grayScale-200 bg-white px-3 py-2.5 text-sm transition-colors focus:border-brand-500 focus:outline-none focus:ring-2 focus:ring-brand-500/20"
>
<option value={0}>Select a course...</option>
{availablePrerequisites.map((sc) => (
<option key={sc.id} value={sc.id}>
{sc.title} {sc.level ? `(${sc.level})` : ""}
</option>
))}
</select>
<Button
className="shrink-0 rounded-lg bg-brand-500 px-4 shadow-sm hover:bg-brand-600"
onClick={handleAddPrerequisite}
disabled={prereqAdding || !selectedPrereqId}
>
{prereqAdding ? (
<SpinnerIcon className="h-4 w-4" />
) : (
<Plus className="h-4 w-4" />
)}
</Button>
</div>
</div>
)}
{/* Current prerequisites list */}
{prereqLoading ? (
<div className="flex items-center justify-center py-8">
<img
src={spinnerSrc}
alt=""
className="h-8 w-8 animate-spin"
/>
</div>
) : prerequisites.length === 0 ? (
<div className="rounded-xl border border-dashed border-grayScale-200 px-4 py-8 text-center">
<Link2 className="mx-auto h-8 w-8 text-grayScale-300" />
<p className="mt-2 text-sm font-medium text-grayScale-500">
No prerequisites
</p>
<p className="mt-0.5 text-xs text-grayScale-400">
This course is accessible without completing others first
</p>
</div>
) : (
<div className="space-y-2">
<p className="text-sm font-semibold text-grayScale-600">
Current Prerequisites ({prerequisites.length})
</p>
{prerequisites.map((prereq) => (
<div
key={prereq.id}
className="flex items-center justify-between rounded-xl border border-grayScale-100 bg-grayScale-25 px-4 py-3 transition-colors hover:border-grayScale-200"
>
<div className="min-w-0 flex-1">
<p className="text-sm font-medium text-grayScale-700 truncate">
{prereq.prerequisite_title}
</p>
<div className="mt-0.5 flex items-center gap-2">
{prereq.prerequisite_level && (
<span className="rounded bg-brand-50 px-1.5 py-0.5 text-[11px] font-medium text-brand-600">
{prereq.prerequisite_level}
</span>
)}
<span className="text-[11px] text-grayScale-400">
Order: {prereq.prerequisite_display_order}
</span>
</div>
</div>
<button
onClick={() => handleRemovePrerequisite(prereq.id)}
disabled={prereqRemoving === prereq.id}
className="ml-3 grid h-8 w-8 shrink-0 place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-red-50 hover:text-red-500 disabled:opacity-50"
>
{prereqRemoving === prereq.id ? (
<SpinnerIcon className="h-4 w-4" />
) : (
<Trash2 className="h-4 w-4" />
)}
</button>
</div>
))}
</div>
)}
</div>
<div className="flex justify-end border-t border-grayScale-100 px-6 py-4">
<Button
variant="outline"
onClick={() => setShowPrereqModal(false)}
className="rounded-lg"
>
Close
</Button>
</div>
</div>
</div>
)}
{/* Edit Sub-course Modal */}
{showEditModal && subCourseToEdit && (
<div className="fixed inset-0 z-50 flex items-center justify-center overflow-y-auto overflow-x-hidden bg-black/40 p-3 backdrop-blur-sm sm:p-6">
<div
role="dialog"
aria-modal="true"
className="my-auto w-full max-w-3xl flex-shrink-0 rounded-2xl bg-white shadow-2xl"
>
<div className="flex items-center justify-between border-b border-grayScale-100 px-4 py-3 sm:px-6 sm:py-4">
<h2 className="text-base font-semibold text-grayScale-700 sm:text-lg">
Edit Course
</h2>
<button
type="button"
onClick={() => setShowEditModal(false)}
className="grid h-10 w-10 min-h-[44px] min-w-[44px] place-items-center rounded-lg text-grayScale-400 transition-colors hover:bg-grayScale-100 hover:text-grayScale-600 sm:h-8 sm:w-8 sm:min-h-0 sm:min-w-0"
>
<X className="h-5 w-5" />
</button>
</div>
<div className="max-h-[min(78vh,640px)] overflow-y-auto px-4 py-5 sm:px-6 sm:py-6">
<div className="grid grid-cols-1 gap-4 md:grid-cols-2 md:gap-x-6 md:gap-y-4">
<div className="space-y-1.5 md:col-span-2">
<label className="text-sm font-semibold text-grayScale-600">
Title
</label>
<Input
value={title}
onChange={(e) => setTitle(e.target.value)}
placeholder="Enter course title"
className="min-h-[44px]"
/>
</div>
<div className="space-y-1.5 md:col-span-2">
<label className="text-sm font-semibold text-grayScale-600">
Description
</label>
<textarea
value={description}
onChange={(e) => setDescription(e.target.value)}
placeholder="Enter course description"
className="w-full rounded-lg border border-grayScale-200 px-3 py-2.5 text-sm transition-colors focus:border-brand-500 focus:outline-none focus:ring-2 focus:ring-brand-500/20"
rows={3}
/>
</div>
<div className="space-y-1.5 md:col-span-2 md:max-w-md">
<label className="text-sm font-semibold text-grayScale-600">
Level
</label>
<Input
value={level}
onChange={(e) => setLevel(e.target.value)}
placeholder="e.g., BEGINNER, Intermediate, Advanced"
className="min-h-[44px]"
/>
</div>
{saveError && (
<div className="flex items-center gap-2 rounded-lg border border-red-100 bg-red-50 px-4 py-2.5 text-sm font-medium text-red-600 md:col-span-2">
<AlertCircle className="h-4 w-4 shrink-0" />
{saveError}
</div>
)}
</div>
</div>
<div className="flex flex-col-reverse gap-3 border-t border-grayScale-100 px-4 py-4 sm:flex-row sm:justify-end sm:px-6">
<Button
variant="outline"
onClick={() => setShowEditModal(false)}
disabled={saving}
className="w-full rounded-lg sm:w-auto"
>
Cancel
</Button>
<Button
className="w-full rounded-lg bg-brand-500 shadow-sm hover:bg-brand-600 sm:w-auto"
onClick={handleSaveEditSubCourse}
disabled={saving || !title.trim()}
>
{saving ? "Saving..." : "Save"}
</Button>
</div>
</div>
</div>
)}
</div>
);
}