Study/src/app/(protected)/[classSlug]/quizzes/page.tsx
2026-07-11 13:48:02 -07:00

501 lines
24 KiB
TypeScript

"use client";
import { useState, useEffect, useCallback } from "react";
import Link from "next/link";
import { useParams } from "next/navigation";
import { ImportModal } from "@/components/import/ImportModal";
import { ShareMenu } from "@/components/ui/ShareMenu";
import {
DndContext,
pointerWithin,
KeyboardSensor,
PointerSensor,
useSensor,
useSensors,
DragEndEvent,
DragOverEvent,
DragStartEvent,
DragOverlay,
useDroppable,
useDndContext,
} from "@dnd-kit/core";
import {
arrayMove,
SortableContext,
sortableKeyboardCoordinates,
verticalListSortingStrategy,
useSortable,
} from "@dnd-kit/sortable";
import { CSS } from "@dnd-kit/utilities";
interface QuizItem {
id: string;
name: string;
description: string | null;
groupId: string | null;
sortOrder: number;
_count: { questions: number; attempts: number };
}
interface MaterialGroup {
id: string;
name: string;
sortOrder: number;
}
const cache: Record<string, { quizzes: QuizItem[]; groups: MaterialGroup[] }> = {};
function SortableQuizCard({ quiz, onEdit, onDelete, classSlug }: any) {
const { attributes, listeners, setNodeRef, transform, transition, isDragging } = useSortable({ id: quiz.id });
const style = {
transform: CSS.Transform.toString(transform),
transition,
opacity: isDragging ? 0.4 : 1,
};
return (
<div ref={setNodeRef} style={style} className="group rounded-2xl border border-border-light bg-bg-surface shadow-[var(--shadow-card)] transition-all duration-300 hover:-translate-y-0.5 hover:border-primary/25 hover:shadow-[var(--shadow-card-hover)]">
<div className="flex h-full flex-1 flex-col p-5">
<div className="flex items-start gap-2">
<div {...attributes} {...listeners} className="mt-1 cursor-grab active:cursor-grabbing text-text-muted hover:text-text-heading">
<svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 8h16M4 16h16" />
</svg>
</div>
<div className="flex-1">
<h3 className="mb-1 text-lg font-extrabold text-text-heading">{quiz.name}</h3>
{quiz.description && <p className="text-sm text-text-secondary mb-3 line-clamp-2">{quiz.description}</p>}
</div>
</div>
<div className="flex items-center gap-3 mt-auto pl-7">
<span className="inline-flex items-center gap-1 px-2.5 py-1 rounded-full bg-badge-bg text-badge-text text-xs font-medium">
{quiz._count.questions} {quiz._count.questions === 1 ? "question" : "questions"}
</span>
{quiz._count.attempts > 0 && (
<span className="text-xs text-text-muted">
{quiz._count.attempts} {quiz._count.attempts === 1 ? "attempt" : "attempts"}
</span>
)}
</div>
<div className="flex items-center gap-2 mt-4 pt-4 border-t border-border-light pl-7">
<Link href={`/${classSlug}/quizzes/${quiz.id}`} className="flex-1 text-center py-2 px-4 rounded-lg bg-primary text-white text-sm font-medium hover:bg-primary-hover transition-all duration-200">
Start Quiz
</Link>
<button onClick={() => onEdit(quiz)} className="p-2 rounded-lg text-text-muted hover:text-text-heading hover:bg-bg-surface-alt transition-all duration-200 cursor-pointer" title="Edit">
<svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z" />
</svg>
</button>
<button onClick={() => onDelete(quiz)} className="p-2 rounded-lg text-text-muted hover:text-error hover:bg-error-bg transition-all duration-200 cursor-pointer" title="Delete">
<svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16" />
</svg>
</button>
</div>
</div>
</div>
);
}
function DroppableContainer({ id, children }: { id: string; children: React.ReactNode }) {
const { setNodeRef } = useDroppable({ id });
const { over } = useDndContext();
const isOverContainer = over?.id === id;
const isOverChild = over?.data?.current?.sortable?.containerId === id;
const isOver = isOverContainer || isOverChild;
return (
<div ref={setNodeRef} className={`grid grid-cols-1 md:grid-cols-2 gap-4 min-h-[60px] p-2 -mx-2 rounded-lg border-2 transition-colors duration-200 ${isOver ? "border-primary/40 bg-primary/5 shadow-inner" : "border-transparent"}`}>
{children}
</div>
);
}
export default function QuizzesPage() {
const params = useParams();
const classSlug = params.classSlug as string;
const [quizzes, setQuizzes] = useState<QuizItem[]>(cache[classSlug]?.quizzes || []);
const [groups, setGroups] = useState<MaterialGroup[]>(cache[classSlug]?.groups || []);
const [loading, setLoading] = useState(!cache[classSlug]);
const [animate] = useState(!cache[classSlug]);
const [showImport, setShowImport] = useState(false);
const [classId, setClassId] = useState<string>("");
const [editingId, setEditingId] = useState<string | null>(null);
const [editName, setEditName] = useState("");
const [editDescription, setEditDescription] = useState("");
const [isCreatingGroup, setIsCreatingGroup] = useState(false);
const [newGroupName, setNewGroupName] = useState("");
const [editingGroupId, setEditingGroupId] = useState<string | null>(null);
const [editGroupName, setEditGroupName] = useState("");
const [collapsedGroups, setCollapsedGroups] = useState<Record<string, boolean>>({});
useEffect(() => {
const saved = localStorage.getItem('quizzes_collapsed_groups');
if (saved) {
try { setCollapsedGroups(JSON.parse(saved)); } catch(e) {}
}
}, []);
function toggleGroup(id: string) {
setCollapsedGroups(prev => {
const next = { ...prev, [id]: !prev[id] };
localStorage.setItem('quizzes_collapsed_groups', JSON.stringify(next));
return next;
});
}
const fetchAll = useCallback(async (cId: string) => {
try {
const [quizRes, groupRes] = await Promise.all([
fetch(`/api/quizzes/list?classId=${cId}`),
fetch(`/api/material-groups?classId=${cId}&type=QUIZ`),
]);
const qs = quizRes.ok ? await quizRes.json() : [];
const gs = groupRes.ok ? await groupRes.json() : [];
setQuizzes(qs);
setGroups(gs);
cache[classSlug] = { quizzes: qs, groups: gs };
} catch {
setQuizzes([]);
setGroups([]);
} finally {
setLoading(false);
}
}, [classSlug]);
useEffect(() => {
async function init() {
try {
const classRes = await fetch("/api/classes");
const classes = await classRes.json();
const cls = classes.find((c: { slug: string }) => c.slug === classSlug);
if (!cls) {
setLoading(false);
return;
}
setClassId(cls.id);
fetchAll(cls.id);
} catch {
setLoading(false);
}
}
init();
}, [classSlug, fetchAll]);
// Group Management
async function handleCreateGroup() {
if (!newGroupName.trim()) return;
const res = await fetch("/api/material-groups", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ classId, name: newGroupName.trim(), type: "QUIZ" }),
});
if (res.ok) {
const g = await res.json();
setGroups((prev) => [...prev, g]);
setIsCreatingGroup(false);
setNewGroupName("");
}
}
async function handleRenameGroup(id: string) {
if (!editGroupName.trim()) return;
await fetch(`/api/material-groups/${id}`, {
method: "PATCH",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ name: editGroupName.trim() }),
});
setGroups((prev) => prev.map((g) => (g.id === id ? { ...g, name: editGroupName.trim() } : g)));
setEditingGroupId(null);
}
async function handleDeleteGroup(id: string, name: string) {
if (!confirm(`Delete group "${name}"? Quizzes inside will be moved to Uncategorized.`)) return;
await fetch(`/api/material-groups/${id}`, { method: "DELETE" });
setGroups((prev) => prev.filter((g) => g.id !== id));
setQuizzes((prev) => prev.map((q) => (q.groupId === id ? { ...q, groupId: null } : q)));
}
// Quiz Management
async function handleDeleteQuiz(quiz: QuizItem) {
if (!confirm(`Delete "${quiz.name}" and all its questions and attempts?`)) return;
await fetch(`/api/quizzes/${quiz.id}`, { method: "DELETE" });
setQuizzes((prev) => prev.filter((q) => q.id !== quiz.id));
}
async function handleRenameQuiz(id: string) {
if (!editName.trim()) return;
await fetch(`/api/quizzes/${id}`, {
method: "PATCH",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ name: editName.trim(), description: editDescription.trim() || null }),
});
setQuizzes((prev) =>
prev.map((q) => (q.id === id ? { ...q, name: editName.trim(), description: editDescription.trim() || null } : q))
);
setEditingId(null);
}
// Drag and drop setup
const sensors = useSensors(
useSensor(PointerSensor, { activationConstraint: { distance: 8 } }),
useSensor(KeyboardSensor, { coordinateGetter: sortableKeyboardCoordinates })
);
const [activeId, setActiveId] = useState<string | null>(null);
function handleDragStart(event: DragStartEvent) {
setActiveId(event.active.id as string);
}
function handleDragOver(event: DragOverEvent) {
const { active, over } = event;
if (!over) return;
const activeId = active.id as string;
const overId = over.id as string;
if (activeId === overId) return;
// Is it dropping over a container directly?
const isOverContainer = over.data.current?.sortable?.containerId || overId;
// ... we handle layout updates in dragEnd to keep it simple, or here for smooth lists.
// For simplicity, we just handle the final move in dragEnd.
}
async function handleDragEnd(event: DragEndEvent) {
setActiveId(null);
const { active, over } = event;
if (!over) return;
const activeId = active.id as string;
const overId = over.id as string;
const activeQuiz = quizzes.find((q) => q.id === activeId);
if (!activeQuiz) return;
let targetGroupId: string | null = null;
let targetIndex = 0;
// Check if over a group container directly
const overContainerId = over.data.current?.sortable?.containerId;
if (overContainerId) {
targetGroupId = overContainerId === "uncategorized" ? null : overContainerId;
} else if (groups.find(g => g.id === overId) || overId === "uncategorized") {
targetGroupId = overId === "uncategorized" ? null : overId;
} else {
const overQuiz = quizzes.find((q) => q.id === overId);
if (overQuiz) {
targetGroupId = overQuiz.groupId;
}
}
if (targetGroupId !== undefined) {
setQuizzes((items) => {
const oldIndex = items.findIndex((q) => q.id === activeId);
const overIndex = items.findIndex((q) => q.id === overId);
let newItems = [...items];
newItems[oldIndex].groupId = targetGroupId;
if (overIndex >= 0 && overIndex !== oldIndex) {
newItems = arrayMove(newItems, oldIndex, overIndex);
} else {
// just moved to end of a group
const oldItem = newItems.splice(oldIndex, 1)[0];
newItems.push(oldItem);
}
// Re-calculate sortOrder for the affected groups to persist
const affectedGroups = new Set([activeQuiz.groupId, targetGroupId]);
const updates: any[] = [];
affectedGroups.forEach(gId => {
const gItems = newItems.filter(q => q.groupId === gId);
gItems.forEach((item, index) => {
item.sortOrder = index;
updates.push({ id: item.id, sortOrder: index, groupId: item.groupId });
});
});
// Fire API
fetch("/api/quizzes/reorder", {
method: "PATCH",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ items: updates }),
});
return newItems;
});
}
}
// Derive grouped quizzes
const groupedQuizzes = groups.map(g => ({
...g,
quizzes: quizzes.filter(q => q.groupId === g.id).sort((a,b) => a.sortOrder - b.sortOrder)
}));
const uncategorizedQuizzes = quizzes.filter(q => q.groupId === null).sort((a,b) => a.sortOrder - b.sortOrder);
const activeQuiz = quizzes.find(q => q.id === activeId);
return (
<div className="pb-20">
{/* Header */}
<div className="mb-6 flex flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
<div><p className="text-xs font-bold uppercase tracking-[0.16em] text-primary">Practice</p><h2 className="editorial-title mt-1 text-3xl text-text-heading">Practice quizzes</h2></div>
<div className="grid grid-cols-2 gap-3 sm:flex">
<button onClick={() => setIsCreatingGroup(true)} className="inline-flex min-h-12 items-center justify-center gap-2 rounded-xl border border-border-light bg-bg-surface px-4 font-bold text-text-heading shadow-sm transition-colors hover:bg-bg-surface-alt">
Add Group
</button>
<button onClick={() => setShowImport(true)} className="inline-flex min-h-12 items-center justify-center gap-2 rounded-xl bg-primary px-4 font-bold text-white shadow-sm transition-colors hover:bg-primary-hover">
<svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4" />
</svg>
Import Quiz
</button>
</div>
</div>
{isCreatingGroup && (
<div className="animate-slide-up mb-6 flex flex-col gap-3 rounded-2xl border border-primary/20 bg-bg-surface p-5 shadow-sm sm:flex-row sm:items-center">
<input
autoFocus
type="text"
value={newGroupName}
onChange={(e) => setNewGroupName(e.target.value)}
placeholder="e.g. Exam 1 Quizzes"
className="flex-1 px-3 py-2 rounded-lg border border-border bg-bg-surface-alt/50 text-text-heading focus:outline-none focus:ring-2 focus:ring-primary/30"
/>
<button onClick={handleCreateGroup} className="px-4 py-2 bg-primary text-white font-medium rounded-md hover:bg-primary-hover cursor-pointer">
Save
</button>
<button onClick={() => { setIsCreatingGroup(false); setNewGroupName(""); }} className="px-4 py-2 bg-bg-surface-alt text-text-heading font-medium rounded-md hover:bg-border cursor-pointer">
Cancel
</button>
</div>
)}
{/* Editing quiz modal/inline - simplified as a modal-like overlay for simplicity when editing */}
{editingId && (
<div className="fixed inset-0 z-50 flex items-center justify-center p-4 bg-black/40 backdrop-blur-sm">
<div className="w-full max-w-md rounded-3xl border border-border bg-bg-surface p-6 shadow-[var(--shadow-modal)]">
<h3 className="editorial-title mb-4 text-2xl text-text-heading">Edit quiz</h3>
<input
type="text"
value={editName}
onChange={(e) => setEditName(e.target.value)}
placeholder="Quiz Name"
autoFocus
className="w-full px-3 py-2 mb-3 rounded-lg border border-border bg-bg-surface-alt/50 text-text-heading focus:outline-none focus:ring-2 focus:ring-primary/30"
/>
<textarea
value={editDescription}
onChange={(e) => setEditDescription(e.target.value)}
placeholder="Description (optional)"
rows={3}
className="w-full px-3 py-2 mb-4 rounded-lg border border-border bg-bg-surface-alt/50 text-text-heading focus:outline-none focus:ring-2 focus:ring-primary/30 resize-none"
/>
<div className="flex gap-2 justify-end">
<button onClick={() => setEditingId(null)} className="px-4 py-2 bg-bg-surface-alt text-text-heading font-medium rounded-md hover:bg-border cursor-pointer">Cancel</button>
<button onClick={() => handleRenameQuiz(editingId)} className="px-4 py-2 bg-primary text-white font-medium rounded-md hover:bg-primary-hover cursor-pointer">Save Changes</button>
</div>
</div>
</div>
)}
{!loading && quizzes.length === 0 && groups.length === 0 && (
<div className="text-center py-16">
<h3 className="text-lg font-semibold text-text-heading mb-1">No quizzes yet</h3>
<p className="text-text-secondary mb-4">Import your first quiz or create a group</p>
</div>
)}
{!loading && (
<DndContext sensors={sensors} collisionDetection={pointerWithin} onDragStart={handleDragStart} onDragOver={handleDragOver} onDragEnd={handleDragEnd}>
<div className="space-y-8">
{groupedQuizzes.map(group => (
<div key={group.id} className="rounded-2xl border border-border-light bg-bg-surface/70 p-4 shadow-[var(--shadow-card)] sm:p-5">
<div className={`flex items-center justify-between ${collapsedGroups[group.id] ? "" : "mb-4"}`}>
{editingGroupId === group.id ? (
<div className="flex items-center gap-2">
<input autoFocus value={editGroupName} onChange={e => setEditGroupName(e.target.value)} className="px-2 py-1 rounded border border-border bg-bg-surface text-text-heading focus:ring-1 focus:ring-primary" />
<button onClick={() => handleRenameGroup(group.id)} className="text-xs px-2 py-1 bg-primary text-white rounded">Save</button>
<button onClick={() => setEditingGroupId(null)} className="text-xs px-2 py-1 bg-bg-surface text-text-heading rounded border border-border-light">Cancel</button>
</div>
) : (
<div className="flex items-center gap-2">
<button onClick={() => toggleGroup(group.id)} className="p-1 rounded text-text-muted hover:text-text-heading hover:bg-bg-surface transition-colors cursor-pointer" title={collapsedGroups[group.id] ? "Expand" : "Collapse"}>
<svg className={`w-5 h-5 transition-transform duration-200 ${collapsedGroups[group.id] ? '-rotate-90' : ''}`} fill="none" stroke="currentColor" viewBox="0 0 24 24"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 9l-7 7-7-7" /></svg>
</button>
<h3 className="text-lg font-extrabold text-text-heading">{group.name}</h3>
</div>
)}
<div className="flex items-center gap-2">
<ShareMenu targetType="GROUP" contentId={group.id} classSlug={params.classSlug as string} />
<button onClick={() => { setEditingGroupId(group.id); setEditGroupName(group.name); }} className="p-1.5 rounded-lg text-text-muted hover:text-text-heading hover:bg-bg-surface transition-colors cursor-pointer"><svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z" /></svg></button>
<button onClick={() => handleDeleteGroup(group.id, group.name)} className="p-1.5 rounded-lg text-text-muted hover:text-error hover:bg-bg-surface transition-colors cursor-pointer"><svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16" /></svg></button>
</div>
</div>
<div className={collapsedGroups[group.id] ? "hidden" : "block"}>
<SortableContext id={group.id} items={group.quizzes.map(q => q.id)} strategy={verticalListSortingStrategy}>
<DroppableContainer id={group.id}>
{group.quizzes.length === 0 ? (
<div className="col-span-1 md:col-span-2 text-center py-4 text-text-muted text-sm border-2 border-dashed border-border-light rounded-lg">Drop quizzes here</div>
) : (
group.quizzes.map(quiz => (
<SortableQuizCard key={quiz.id} quiz={quiz} onEdit={(q: QuizItem) => { setEditingId(q.id); setEditName(q.name); setEditDescription(q.description || ""); }} onDelete={handleDeleteQuiz} classSlug={classSlug} />
))
)}
</DroppableContainer>
</SortableContext>
</div>
</div>
))}
{/* Uncategorized */}
<div className="rounded-2xl border border-border-light bg-bg-surface/70 p-4 shadow-[var(--shadow-card)] sm:p-5">
<div className={`flex items-center gap-2 ${collapsedGroups["uncategorized"] ? "" : "mb-4"}`}>
<button onClick={() => toggleGroup("uncategorized")} className="p-1 rounded text-text-muted hover:text-text-heading hover:bg-bg-surface transition-colors cursor-pointer" title={collapsedGroups["uncategorized"] ? "Expand" : "Collapse"}>
<svg className={`w-5 h-5 transition-transform duration-200 ${collapsedGroups["uncategorized"] ? '-rotate-90' : ''}`} fill="none" stroke="currentColor" viewBox="0 0 24 24"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 9l-7 7-7-7" /></svg>
</button>
<h3 className="text-lg font-semibold text-text-heading">Uncategorized</h3>
</div>
<div className={collapsedGroups["uncategorized"] ? "hidden" : "block"}>
<SortableContext id="uncategorized" items={uncategorizedQuizzes.map(q => q.id)} strategy={verticalListSortingStrategy}>
<DroppableContainer id="uncategorized">
{uncategorizedQuizzes.length === 0 ? (
<div className="col-span-1 md:col-span-2 text-center py-4 text-text-muted text-sm border-2 border-dashed border-border-light rounded-lg">No uncategorized quizzes</div>
) : (
uncategorizedQuizzes.map(quiz => (
<SortableQuizCard key={quiz.id} quiz={quiz} onEdit={(q: QuizItem) => { setEditingId(q.id); setEditName(q.name); setEditDescription(q.description || ""); }} onDelete={handleDeleteQuiz} classSlug={classSlug} />
))
)}
</DroppableContainer>
</SortableContext>
</div>
</div>
</div>
<DragOverlay>
{activeQuiz ? (
<div className="opacity-80 scale-105 shadow-xl rotate-2">
<SortableQuizCard quiz={activeQuiz} onEdit={()=>{}} onDelete={()=>{}} classSlug={classSlug} />
</div>
) : null}
</DragOverlay>
</DndContext>
)}
{showImport && (
<ImportModal classId={classId} importType="quizzes" onClose={() => setShowImport(false)} onImported={() => { setShowImport(false); window.location.reload(); }} />
)}
</div>
);
}