Merge exams grading into homework
Redirect /teacher/exams/grading* to /teacher/homework/submissions; remove exam grading UI/actions/data-access; add homework student workflow and update design docs.
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SpecialX
345
src/modules/homework/components/homework-take-view.tsx
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345
src/modules/homework/components/homework-take-view.tsx
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"use client"
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import { useMemo, useState } from "react"
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import { useRouter } from "next/navigation"
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import { toast } from "sonner"
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import { Badge } from "@/shared/components/ui/badge"
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import { Button } from "@/shared/components/ui/button"
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import { Card, CardContent, CardHeader, CardTitle } from "@/shared/components/ui/card"
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import { Checkbox } from "@/shared/components/ui/checkbox"
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import { Label } from "@/shared/components/ui/label"
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import { Textarea } from "@/shared/components/ui/textarea"
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import { ScrollArea } from "@/shared/components/ui/scroll-area"
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import { Separator } from "@/shared/components/ui/separator"
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import {
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Select,
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SelectContent,
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SelectItem,
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SelectTrigger,
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SelectValue,
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} from "@/shared/components/ui/select"
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import type { StudentHomeworkTakeData } from "../types"
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import { saveHomeworkAnswerAction, startHomeworkSubmissionAction, submitHomeworkAction } from "../actions"
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const isRecord = (v: unknown): v is Record<string, unknown> => typeof v === "object" && v !== null
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type Option = { id: string; text: string }
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const getQuestionText = (content: unknown): string => {
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if (!isRecord(content)) return ""
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return typeof content.text === "string" ? content.text : ""
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}
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const getOptions = (content: unknown): Option[] => {
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if (!isRecord(content)) return []
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const raw = content.options
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if (!Array.isArray(raw)) return []
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const out: Option[] = []
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for (const item of raw) {
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if (!isRecord(item)) continue
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const id = typeof item.id === "string" ? item.id : ""
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const text = typeof item.text === "string" ? item.text : ""
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if (!id || !text) continue
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out.push({ id, text })
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}
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return out
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}
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const toAnswerShape = (questionType: string, v: unknown) => {
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if (questionType === "text") return { answer: typeof v === "string" ? v : "" }
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if (questionType === "judgment") return { answer: typeof v === "boolean" ? v : false }
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if (questionType === "single_choice") return { answer: typeof v === "string" ? v : "" }
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if (questionType === "multiple_choice") return { answer: Array.isArray(v) ? v.filter((x): x is string => typeof x === "string") : [] }
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return { answer: v }
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}
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const parseSavedAnswer = (saved: unknown, questionType: string) => {
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if (isRecord(saved) && "answer" in saved) return toAnswerShape(questionType, saved.answer)
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return toAnswerShape(questionType, saved)
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}
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type HomeworkTakeViewProps = {
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assignmentId: string
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initialData: StudentHomeworkTakeData
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}
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export function HomeworkTakeView({ assignmentId, initialData }: HomeworkTakeViewProps) {
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const router = useRouter()
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const [submissionId, setSubmissionId] = useState<string | null>(initialData.submission?.id ?? null)
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const [submissionStatus, setSubmissionStatus] = useState<string>(initialData.submission?.status ?? "not_started")
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const [isBusy, setIsBusy] = useState(false)
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const initialAnswersByQuestionId = useMemo(() => {
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const map = new Map<string, { answer: unknown }>()
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for (const q of initialData.questions) {
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map.set(q.questionId, parseSavedAnswer(q.savedAnswer, q.questionType))
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}
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return map
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}, [initialData.questions])
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const [answersByQuestionId, setAnswersByQuestionId] = useState(() => {
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const obj: Record<string, { answer: unknown }> = {}
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for (const [k, v] of initialAnswersByQuestionId.entries()) obj[k] = v
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return obj
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})
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const isStarted = submissionStatus === "started"
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const canEdit = isStarted && Boolean(submissionId)
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const handleStart = async () => {
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setIsBusy(true)
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const fd = new FormData()
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fd.set("assignmentId", assignmentId)
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const res = await startHomeworkSubmissionAction(null, fd)
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if (res.success && res.data) {
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setSubmissionId(res.data)
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setSubmissionStatus("started")
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toast.success("Started")
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router.refresh()
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} else {
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toast.error(res.message || "Failed to start")
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}
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setIsBusy(false)
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}
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const handleSaveQuestion = async (questionId: string) => {
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if (!submissionId) return
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setIsBusy(true)
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const payload = answersByQuestionId[questionId]?.answer ?? null
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const fd = new FormData()
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fd.set("submissionId", submissionId)
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fd.set("questionId", questionId)
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fd.set("answerJson", JSON.stringify({ answer: payload }))
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const res = await saveHomeworkAnswerAction(null, fd)
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if (res.success) toast.success("Saved")
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else toast.error(res.message || "Failed to save")
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setIsBusy(false)
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}
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const handleSubmit = async () => {
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if (!submissionId) return
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setIsBusy(true)
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for (const q of initialData.questions) {
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const payload = answersByQuestionId[q.questionId]?.answer ?? null
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const fd = new FormData()
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fd.set("submissionId", submissionId)
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fd.set("questionId", q.questionId)
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fd.set("answerJson", JSON.stringify({ answer: payload }))
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const res = await saveHomeworkAnswerAction(null, fd)
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if (!res.success) {
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toast.error(res.message || "Failed to save")
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setIsBusy(false)
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return
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}
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}
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const submitFd = new FormData()
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submitFd.set("submissionId", submissionId)
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const submitRes = await submitHomeworkAction(null, submitFd)
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if (submitRes.success) {
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toast.success("Submitted")
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setSubmissionStatus("submitted")
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router.push("/student/learning/assignments")
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} else {
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toast.error(submitRes.message || "Failed to submit")
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}
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setIsBusy(false)
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}
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return (
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<div className="grid h-[calc(100vh-10rem)] grid-cols-1 gap-6 lg:grid-cols-3">
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<div className="lg:col-span-2 flex flex-col h-full overflow-hidden rounded-md border bg-card">
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<div className="border-b p-4 flex items-center justify-between">
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<div className="flex items-center gap-2">
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<h3 className="font-semibold">Questions</h3>
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<Badge variant="outline" className="capitalize">
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{submissionStatus === "not_started" ? "not started" : submissionStatus}
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</Badge>
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</div>
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{!canEdit ? (
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<Button onClick={handleStart} disabled={isBusy}>
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{isBusy ? "Starting..." : "Start"}
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</Button>
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) : (
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<Button onClick={handleSubmit} disabled={isBusy}>
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{isBusy ? "Submitting..." : "Submit"}
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</Button>
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)}
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</div>
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<ScrollArea className="flex-1 p-4">
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<div className="space-y-6">
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{initialData.questions.map((q, idx) => {
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const text = getQuestionText(q.questionContent)
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const options = getOptions(q.questionContent)
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const value = answersByQuestionId[q.questionId]?.answer
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return (
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<Card key={q.questionId} className="border-l-4 border-l-primary/20">
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<CardHeader className="py-3 px-4">
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<CardTitle className="text-sm font-medium flex items-center justify-between">
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<span>
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Q{idx + 1} <span className="text-muted-foreground font-normal">({q.questionType})</span>
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</span>
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<span className="text-xs text-muted-foreground">Max: {q.maxScore}</span>
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</CardTitle>
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</CardHeader>
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<CardContent className="py-3 px-4 space-y-4">
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<div className="text-sm">{text || "—"}</div>
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{q.questionType === "text" ? (
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<div className="grid gap-2">
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<Label>Your answer</Label>
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<Textarea
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value={typeof value === "string" ? value : ""}
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onChange={(e) =>
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setAnswersByQuestionId((prev) => ({
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...prev,
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[q.questionId]: { answer: e.target.value },
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}))
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}
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className="min-h-[100px]"
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disabled={!canEdit}
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/>
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</div>
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) : q.questionType === "judgment" ? (
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<div className="grid gap-2">
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<Label>Your answer</Label>
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<Select
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value={typeof value === "boolean" ? (value ? "true" : "false") : ""}
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onValueChange={(v) =>
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setAnswersByQuestionId((prev) => ({
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...prev,
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[q.questionId]: { answer: v === "true" },
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}))
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}
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disabled={!canEdit}
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>
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<SelectTrigger>
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<SelectValue placeholder="Select" />
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</SelectTrigger>
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<SelectContent>
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<SelectItem value="true">True</SelectItem>
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<SelectItem value="false">False</SelectItem>
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</SelectContent>
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</Select>
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</div>
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) : q.questionType === "single_choice" ? (
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<div className="grid gap-2">
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<Label>Your answer</Label>
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<Select
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value={typeof value === "string" ? value : ""}
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onValueChange={(v) =>
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setAnswersByQuestionId((prev) => ({
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...prev,
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[q.questionId]: { answer: v },
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}))
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}
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disabled={!canEdit}
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>
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<SelectTrigger>
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<SelectValue placeholder="Select an option" />
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</SelectTrigger>
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<SelectContent>
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{options.map((o) => (
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<SelectItem key={o.id} value={o.id}>
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{o.text}
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</SelectItem>
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))}
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</SelectContent>
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</Select>
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</div>
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) : q.questionType === "multiple_choice" ? (
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<div className="grid gap-2">
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<Label>Your answer</Label>
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<div className="space-y-2">
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{options.map((o) => {
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const selected = Array.isArray(value) ? value.includes(o.id) : false
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return (
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<label key={o.id} className="flex items-start gap-3 rounded-md border p-3">
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<Checkbox
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checked={selected}
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onCheckedChange={(checked) => {
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const isChecked = checked === true
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setAnswersByQuestionId((prev) => {
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const current = Array.isArray(prev[q.questionId]?.answer)
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? (prev[q.questionId]?.answer as string[])
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: []
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const next = isChecked
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? Array.from(new Set([...current, o.id]))
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: current.filter((x) => x !== o.id)
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return { ...prev, [q.questionId]: { answer: next } }
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})
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}}
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disabled={!canEdit}
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/>
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<span className="text-sm">{o.text}</span>
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</label>
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)
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})}
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</div>
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</div>
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) : (
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<div className="text-sm text-muted-foreground">Unsupported question type</div>
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)}
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{canEdit ? (
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<>
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<Separator />
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<div className="flex justify-end">
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<Button
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variant="outline"
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size="sm"
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onClick={() => handleSaveQuestion(q.questionId)}
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disabled={isBusy}
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>
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Save
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</Button>
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</div>
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</>
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) : null}
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</CardContent>
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</Card>
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)
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})}
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</div>
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</ScrollArea>
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</div>
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<div className="flex flex-col h-full overflow-hidden rounded-md border bg-card">
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<div className="border-b p-4">
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<h3 className="font-semibold">Info</h3>
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<div className="mt-2 space-y-1 text-sm text-muted-foreground">
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<div className="flex items-center justify-between">
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<span>Status</span>
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<span className="capitalize text-foreground">{submissionStatus === "not_started" ? "not started" : submissionStatus}</span>
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</div>
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<div className="flex items-center justify-between">
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<span>Questions</span>
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<span className="text-foreground tabular-nums">{initialData.questions.length}</span>
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</div>
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</div>
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</div>
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<div className="flex-1 p-4">
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<div className="space-y-3 text-sm">
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<div className="text-muted-foreground">{initialData.assignment.description || "—"}</div>
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</div>
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</div>
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<div className="border-t p-4 bg-muted/20">
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{canEdit ? (
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<Button className="w-full" onClick={handleSubmit} disabled={isBusy}>
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{isBusy ? "Submitting..." : "Submit"}
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</Button>
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) : (
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<Button className="w-full" onClick={handleStart} disabled={isBusy}>
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{isBusy ? "Starting..." : "Start"}
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</Button>
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)}
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</div>
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</div>
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</div>
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)
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}
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