=test_update_homework_tests_and_work_log

src/app/(dashboard)/student/learning/assignments/page.tsx

@@ -3,14 +3,7 @@ import Link from "next/link"
 import { EmptyState } from "@/shared/components/ui/empty-state"
 import { Badge } from "@/shared/components/ui/badge"
 import { Button } from "@/shared/components/ui/button"
-import {
-  Table,
-  TableBody,
-  TableCell,
-  TableHead,
-  TableHeader,
-  TableRow,
-} from "@/shared/components/ui/table"
+import { Card, CardContent, CardHeader, CardTitle } from "@/shared/components/ui/card"
 import { formatDate } from "@/shared/lib/utils"
 import { getDemoStudentUser, getStudentHomeworkAssignments } from "@/modules/homework/data-access"
 import { Inbox } from "lucide-react"
@@ -43,18 +36,14 @@ const getActionVariant = (status: string): "default" | "secondary" | "outline" =
   return "default"
 }
 
+const isAnswered = (status: string) => status === "submitted" || status === "graded"
+
 export default async function StudentAssignmentsPage() {
   const student = await getDemoStudentUser()
 
   if (!student) {
     return (
       <div className="h-full flex-1 flex-col space-y-8 p-8 md:flex">
-        <div className="flex items-center justify-between space-y-2">
-          <div>
-            <h2 className="text-2xl font-bold tracking-tight">Assignments</h2>
-            <p className="text-muted-foreground">Your homework assignments.</p>
-          </div>
-        </div>
         <EmptyState title="No user found" description="Create a student user to see assignments." icon={Inbox} />
       </div>
     )
@@ -62,63 +51,115 @@ export default async function StudentAssignmentsPage() {
 
   const assignments = await getStudentHomeworkAssignments(student.id)
   const hasAssignments = assignments.length > 0
+  const assignmentsBySubject = assignments.reduce((acc, assignment) => {
+    const subject = assignment.subjectName?.trim() || "Other"
+    const existing = acc.get(subject)
+    if (existing) {
+      existing.push(assignment)
+    } else {
+      acc.set(subject, [assignment])
+    }
+    return acc
+  }, new Map<string, typeof assignments>())
+  const subjectEntries = Array.from(assignmentsBySubject.entries()).sort((a, b) => a[0].localeCompare(b[0]))
 
   return (
     <div className="h-full flex-1 flex-col space-y-8 p-8 md:flex">
-      <div className="flex items-center justify-between space-y-2">
-        <div>
-          <h2 className="text-2xl font-bold tracking-tight">Assignments</h2>
-          <p className="text-muted-foreground">Your homework assignments.</p>
-        </div>
-        <Button asChild variant="outline">
-          <Link href="/student/dashboard">Back</Link>
-        </Button>
-      </div>
-
       {!hasAssignments ? (
         <EmptyState title="No assignments" description="You have no assigned homework right now." icon={Inbox} />
       ) : (
-        <div className="rounded-md border bg-card">
-          <Table>
-            <TableHeader>
-              <TableRow>
-                <TableHead>Title</TableHead>
-                <TableHead>Status</TableHead>
-                <TableHead>Due</TableHead>
-                <TableHead>Attempts</TableHead>
-                <TableHead>Score</TableHead>
-                <TableHead className="text-right">Action</TableHead>
-              </TableRow>
-            </TableHeader>
-            <TableBody>
-              {assignments.map((a) => (
-                <TableRow key={a.id}>
-                  <TableCell className="font-medium">
-                    <Link href={`/student/learning/assignments/${a.id}`} className="hover:underline">
-                      {a.title}
-                    </Link>
-                  </TableCell>
-                  <TableCell>
-                    <Badge variant={getStatusVariant(a.progressStatus)} className="capitalize">
-                      {getStatusLabel(a.progressStatus)}
-                    </Badge>
-                  </TableCell>
-                  <TableCell>{a.dueAt ? formatDate(a.dueAt) : "-"}</TableCell>
-                  <TableCell className="tabular-nums text-muted-foreground">
-                    {a.attemptsUsed}/{a.maxAttempts}
-                  </TableCell>
-                  <TableCell className="tabular-nums">{a.latestScore ?? "-"}</TableCell>
-                  <TableCell className="text-right">
-                    <Button asChild size="sm" variant={getActionVariant(a.progressStatus)}>
-                      <Link href={`/student/learning/assignments/${a.id}`}>
-                        {getActionLabel(a.progressStatus)}
-                      </Link>
-                    </Button>
-                  </TableCell>
-                </TableRow>
-              ))}
-            </TableBody>
-          </Table>
+        <div className="space-y-6">
+          {subjectEntries.map(([subject, items]) => {
+            const answeredItems = items.filter((a) => isAnswered(a.progressStatus))
+            const unansweredItems = items.filter((a) => !isAnswered(a.progressStatus))
+
+            return (
+              <div key={subject} className="space-y-3">
+              <div className="text-sm font-semibold text-muted-foreground">{subject}</div>
+              {unansweredItems.length > 0 && (
+                <div className="space-y-3">
+                  <div className="text-xs font-semibold uppercase tracking-wide text-muted-foreground">未答题</div>
+                  <div className="grid gap-4 md:grid-cols-2 xl:grid-cols-3">
+                    {unansweredItems.map((a) => (
+                      <Card key={a.id} className="flex h-full flex-col overflow-hidden transition-all hover:shadow-md">
+                        <CardHeader className="gap-2 pb-3">
+                          <div className="flex items-start justify-between gap-3">
+                            <CardTitle className="text-base">
+                              <Link href={`/student/learning/assignments/${a.id}`} className="hover:underline">
+                                {a.title}
+                              </Link>
+                            </CardTitle>
+                            <Badge variant={getStatusVariant(a.progressStatus)} className="capitalize">
+                              {getStatusLabel(a.progressStatus)}
+                            </Badge>
+                          </div>
+                          <div className="text-xs text-muted-foreground">
+                            <span>Due {a.dueAt ? formatDate(a.dueAt) : "-"}</span>
+                            <span className="px-2">•</span>
+                            <span>
+                              Attempts {a.attemptsUsed}/{a.maxAttempts}
+                            </span>
+                          </div>
+                        </CardHeader>
+                        <CardContent className="mt-auto flex items-center justify-between">
+                          <div className="text-sm">
+                            <div className="text-muted-foreground">Score</div>
+                            <div className="font-medium tabular-nums">{a.latestScore ?? "-"}</div>
+                          </div>
+                          <Button asChild size="sm" variant={getActionVariant(a.progressStatus)}>
+                            <Link href={`/student/learning/assignments/${a.id}`}>
+                              {getActionLabel(a.progressStatus)}
+                            </Link>
+                          </Button>
+                        </CardContent>
+                      </Card>
+                    ))}
+                  </div>
+                </div>
+              )}
+              {answeredItems.length > 0 && (
+                <div className="space-y-3">
+                  <div className="text-xs font-semibold uppercase tracking-wide text-muted-foreground">已答题</div>
+                  <div className="grid gap-4 md:grid-cols-2 xl:grid-cols-3">
+                    {answeredItems.map((a) => (
+                      <Card key={a.id} className="flex h-full flex-col overflow-hidden transition-all hover:shadow-md">
+                        <CardHeader className="gap-2 pb-3">
+                          <div className="flex items-start justify-between gap-3">
+                            <CardTitle className="text-base">
+                              <Link href={`/student/learning/assignments/${a.id}`} className="hover:underline">
+                                {a.title}
+                              </Link>
+                            </CardTitle>
+                            <Badge variant={getStatusVariant(a.progressStatus)} className="capitalize">
+                              {getStatusLabel(a.progressStatus)}
+                            </Badge>
+                          </div>
+                          <div className="text-xs text-muted-foreground">
+                            <span>Due {a.dueAt ? formatDate(a.dueAt) : "-"}</span>
+                            <span className="px-2">•</span>
+                            <span>
+                              Attempts {a.attemptsUsed}/{a.maxAttempts}
+                            </span>
+                          </div>
+                        </CardHeader>
+                        <CardContent className="mt-auto flex items-center justify-between">
+                          <div className="text-sm">
+                            <div className="text-muted-foreground">Score</div>
+                            <div className="font-medium tabular-nums">{a.latestScore ?? "-"}</div>
+                          </div>
+                          <Button asChild size="sm" variant={getActionVariant(a.progressStatus)}>
+                            <Link href={`/student/learning/assignments/${a.id}`}>
+                              {getActionLabel(a.progressStatus)}
+                            </Link>
+                          </Button>
+                        </CardContent>
+                      </Card>
+                    ))}
+                  </div>
+                </div>
+              )}
+            </div>
+          )})}
         </div>
       )}
     </div>

src/app/(dashboard)/teacher/exams/create/page.tsx

@@ -3,7 +3,7 @@ import { ExamForm } from "@/modules/exams/components/exam-form"
 export default function CreateExamPage() {
   return (
     
-    <div className="flex justify-center items-center min-h-[calc(100vh-160px)] p-8 max-w-[1200px] mx-auto">
+    <div className="flex w-full justify-center items-center min-h-[calc(100vh-160px)] p-8 max-w-[1200px] mx-auto">
       <ExamForm />
     </div>
   )

src/app/api/ai/chat/route.ts

@@ -0,0 +1,28 @@
+import { NextResponse } from "next/server"
+import { auth } from "@/auth"
+import { createAiChatCompletion, getAiErrorMessage, parseAiChatPayload } from "@/shared/lib/ai"
+
+export const dynamic = "force-dynamic"
+
+const getStatusFromError = (message: string) => {
+  if (message === "Invalid payload" || message === "Messages are required") return 400
+  if (message === "AI API key missing") return 500
+  if (message === "Empty response") return 502
+  return 502
+}
+
+export async function POST(req: Request) {
+  const session = await auth()
+  const userId = String(session?.user?.id ?? "").trim()
+  if (!userId) return NextResponse.json({ success: false, message: "Unauthorized" }, { status: 401 })
+
+  try {
+    const body = await req.json().catch(() => null)
+    const input = parseAiChatPayload(body)
+    const result = await createAiChatCompletion(input)
+    return NextResponse.json({ success: true, content: result.content, usage: result.usage })
+  } catch (e) {
+    const message = getAiErrorMessage(e)
+    return NextResponse.json({ success: false, message }, { status: getStatusFromError(message) })
+  }
+}

src/app/globals.css

@@ -172,7 +172,7 @@
     @apply border-border;
   }
   body {
-    @apply bg-background text-foreground;
+    @apply bg-background text-foreground h-screen overflow-hidden;
     font-feature-settings: "rlig" 1, "calt" 1;
   }
 }

src/app/layout.tsx

@@ -20,6 +20,7 @@ export default function RootLayout({
     <html lang="en" suppressHydrationWarning>
       <body
         className={`antialiased`}
+        suppressHydrationWarning
       >
         <ThemeProvider
             attribute="class"