Add admin dashboard and class management actions

app/Http/Controllers/Api/Admin/ClassController.php

@@ -51,6 +51,26 @@ final class ClassController extends Controller
         return ApiResponse::success($class, '班级已创建');
     }
 
+    #[Apidoc\Title('更新班级')]
+    #[Apidoc\Url('/admin/classes/{class}')]
+    #[Apidoc\Method('PUT')]
+    #[Apidoc\RouteMiddleware(['permission:classes'])]
+    public function update(Request $request, mixed $class): JsonResponse
+    {
+        $class = $this->resolveClass($class);
+        abort_if($request->user()->role !== 'admin' && $class->owner_id !== $request->user()->id, 403, '权限不足');
+
+        $data = $request->validate([
+            'name' => ['sometimes', 'required', 'string', 'max:100'],
+            'description' => ['nullable', 'string'],
+            'is_active' => ['sometimes', 'boolean'],
+        ]);
+
+        $class->update($data);
+
+        return ApiResponse::success($class->fresh()->loadCount('members'), '班级已更新');
+    }
+
     #[Apidoc\Title('分配成员')]
     #[Apidoc\Url('/admin/classes/{class}/members')]
     #[Apidoc\Method('POST')]
@@ -72,6 +92,31 @@ final class ClassController extends Controller
         return ApiResponse::success($class->load('members'), '成员已加入');
     }
 
+    #[Apidoc\Title('批量分配成员')]
+    #[Apidoc\Url('/admin/classes/{class}/members/batch')]
+    #[Apidoc\Method('POST')]
+    #[Apidoc\RouteMiddleware(['permission:classes'])]
+    public function addMembers(Request $request, mixed $class): JsonResponse
+    {
+        $class = $this->resolveClass($class);
+        abort_if($request->user()->role !== 'admin' && $class->owner_id !== $request->user()->id, 403, '权限不足');
+
+        $data = $request->validate([
+            'user_ids' => ['required', 'array', 'min:1'],
+            'user_ids.*' => ['integer', 'exists:users,id'],
+            'role' => ['nullable', 'in:student,assistant'],
+        ]);
+
+        $role = $data['role'] ?? 'student';
+        $members = collect($data['user_ids'])
+            ->unique()
+            ->mapWithKeys(fn (int $userId): array => [$userId => ['role' => $role]])
+            ->all();
+        $class->members()->syncWithoutDetaching($members);
+
+        return ApiResponse::success($class->fresh()->loadCount('members'), '成员已加入');
+    }
+
     private function resolveClass(mixed $class): SchoolClass
     {
         if ($class instanceof SchoolClass && $class->exists) {

app/Http/Controllers/Api/Admin/DashboardController.php

@@ -0,0 +1,91 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Controllers\Api\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Models\Question;
+use App\Models\QuestionBank;
+use App\Models\QuizAttempt;
+use App\Models\User;
+use App\Models\WrongQuestion;
+use App\Support\ApiResponse;
+use hg\apidoc\annotation as Apidoc;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\DB;
+
+#[Apidoc\Group('后台')]
+#[Apidoc\Title('控制台')]
+#[Apidoc\RouteMiddleware(['jwt.auth'])]
+final class DashboardController extends Controller
+{
+    #[Apidoc\Title('控制台概览')]
+    #[Apidoc\Url('/admin/dashboard')]
+    #[Apidoc\Method('GET')]
+    #[Apidoc\RouteMiddleware(['permission:dashboard'])]
+    public function index(Request $request): JsonResponse
+    {
+        $user = $request->user();
+        $bankScope = QuestionBank::query()->whereNull('deleted_at');
+        if ($user->role !== 'admin') {
+            $bankScope->where('owner_id', $user->id);
+        }
+        $bankIds = (clone $bankScope)->pluck('id');
+        $questionScope = Question::query()->whereIn('question_bank_id', $bankIds);
+        $todayAnswered = DB::table('quiz_attempt_questions')
+            ->join('quiz_attempts', 'quiz_attempts.id', '=', 'quiz_attempt_questions.quiz_attempt_id')
+            ->join('questions', 'questions.id', '=', 'quiz_attempt_questions.question_id')
+            ->whereIn('questions.question_bank_id', $bankIds)
+            ->whereDate('quiz_attempt_questions.answered_at', today())
+            ->whereNotNull('quiz_attempt_questions.answered_at');
+        $answered = (clone $todayAnswered)->count();
+        $correct = (clone $todayAnswered)->where('quiz_attempt_questions.is_correct', true)->count();
+        $trend = DB::table('quiz_attempt_questions')
+            ->join('questions', 'questions.id', '=', 'quiz_attempt_questions.question_id')
+            ->whereIn('questions.question_bank_id', $bankIds)
+            ->where('quiz_attempt_questions.answered_at', '>=', now()->subDays(6)->startOfDay())
+            ->whereNotNull('quiz_attempt_questions.answered_at')
+            ->selectRaw('date(quiz_attempt_questions.answered_at) as day, count(*) as answered_count')
+            ->groupBy('day')
+            ->orderBy('day')
+            ->get();
+        $classRanking = DB::table('classes')
+            ->leftJoin('class_members', 'class_members.class_id', '=', 'classes.id')
+            ->leftJoin('quiz_attempts', 'quiz_attempts.user_id', '=', 'class_members.user_id')
+            ->whereNull('classes.deleted_at')
+            ->when($user->role !== 'admin', fn ($query) => $query->where('classes.owner_id', $user->id))
+            ->selectRaw('classes.id, classes.name, count(distinct class_members.user_id) as members_count, count(distinct quiz_attempts.id) as attempts')
+            ->groupBy('classes.id', 'classes.name')
+            ->orderByDesc('attempts')
+            ->limit(5)
+            ->get();
+        $recentAttempts = QuizAttempt::query()
+            ->join('users', 'users.id', '=', 'quiz_attempts.user_id')
+            ->leftJoin('question_banks', 'question_banks.id', '=', 'quiz_attempts.question_bank_id')
+            ->when($user->role !== 'admin', fn ($query) => $query->whereIn('quiz_attempts.question_bank_id', $bankIds))
+            ->selectRaw('quiz_attempts.id, users.name as user_name, coalesce(question_banks.name, "固定试卷") as bank_name, quiz_attempts.mode, quiz_attempts.total_questions, quiz_attempts.correct_count, quiz_attempts.started_at')
+            ->latest('quiz_attempts.started_at')
+            ->limit(8)
+            ->get();
+
+        return ApiResponse::success([
+            'stats' => [
+                'banks' => (clone $bankScope)->count(),
+                'questions' => (clone $questionScope)->count(),
+                'today_answered' => $answered,
+                'accuracy' => $answered > 0 ? round($correct / $answered * 100, 2) : 0,
+                'users' => $user->role === 'admin' ? User::query()->count() : null,
+                'wrong_questions' => WrongQuestion::query()
+                    ->join('questions', 'questions.id', '=', 'wrong_questions.question_id')
+                    ->whereIn('questions.question_bank_id', $bankIds)
+                    ->whereNull('wrong_questions.mastered_at')
+                    ->count(),
+            ],
+            'trend' => $trend,
+            'class_ranking' => $classRanking,
+            'recent_attempts' => $recentAttempts,
+        ]);
+    }
+}

app/Http/Controllers/Api/Admin/UserController.php

@@ -126,4 +126,16 @@ final class UserController extends Controller
 
         return ApiResponse::success($invite, '邀请码已创建');
     }
+
+    #[Apidoc\Title('删除邀请码')]
+    #[Apidoc\Url('/admin/invite-codes/{invite}')]
+    #[Apidoc\Method('DELETE')]
+    #[Apidoc\RouteMiddleware(['permission:users.update'])]
+    public function deleteInvite(mixed $invite): JsonResponse
+    {
+        $invite = InviteCode::query()->findOrFail((int) $invite);
+        $invite->delete();
+
+        return ApiResponse::success(null, '邀请码已删除');
+    }
 }

frontend/src/api/admin.ts

@@ -1,6 +1,7 @@
 import { apiDelete, apiGet, apiPost, apiPut } from './http'
 import type {
   ImportJob,
+  DashboardData,
   PageData,
   Paper,
   Permission,
@@ -22,6 +23,10 @@ import type {
   User,
 } from '@/types/api'
 
+export function fetchDashboard() {
+  return apiGet<DashboardData>('/api/admin/dashboard')
+}
+
 export function fetchBanks(params?: Record<string, unknown>) {
   return apiGet<PageData<QuestionBank>>('/api/admin/banks', params)
 }
@@ -130,10 +135,18 @@ export function createClass(payload: { name: string; description?: string }) {
   return apiPost<SchoolClass>('/api/admin/classes', payload)
 }
 
+export function updateClass(classId: number, payload: { name?: string; description?: string; is_active?: boolean }) {
+  return apiPut<SchoolClass>(`/api/admin/classes/${classId}`, payload)
+}
+
 export function addClassMember(classId: number, payload: { user_id: number; role?: string }) {
   return apiPost<SchoolClass>(`/api/admin/classes/${classId}/members`, payload)
 }
 
+export function addClassMembers(classId: number, payload: { user_ids: number[]; role?: string }) {
+  return apiPost<SchoolClass>(`/api/admin/classes/${classId}/members/batch`, payload)
+}
+
 export function fetchPapers(params?: Record<string, unknown>) {
   return apiGet<PageData<Paper>>('/api/admin/papers', params)
 }
@@ -191,6 +204,10 @@ export function createInvite(payload: { role: string; assigned_name?: string; ma
   return apiPost('/api/admin/invite-codes', payload)
 }
 
+export function deleteInvite(inviteId: number) {
+  return apiDelete<null>(`/api/admin/invite-codes/${inviteId}`)
+}
+
 export function fetchPermissions() {
   return apiGet<{
     permissions: Permission[]

frontend/src/types/api.ts

@@ -243,3 +243,25 @@ export interface ReportBankDetail {
   types: ReportDimension[]
   question_errors: ReportQuestionError[]
 }
+
+export interface DashboardData {
+  stats: {
+    banks: number
+    questions: number
+    today_answered: number
+    accuracy: number
+    users?: number | null
+    wrong_questions: number
+  }
+  trend: Array<{ day: string; answered_count: number }>
+  class_ranking: Array<{ id: number; name: string; members_count: number; attempts: number }>
+  recent_attempts: Array<{
+    id: number
+    user_name: string
+    bank_name: string
+    mode: string
+    total_questions: number
+    correct_count: number
+    started_at: string
+  }>
+}

frontend/src/views/admin/ClassesView.vue

@@ -1,25 +1,28 @@
 <script setup lang="ts">
 import { computed, onMounted, reactive, shallowRef } from 'vue'
 import { ElMessage } from 'element-plus'
-import { Plus, UserFilled } from '@element-plus/icons-vue'
+import { Edit, Plus, UserFilled } from '@element-plus/icons-vue'
-import { addClassMember, createClass, fetchClasses, fetchUsers } from '@/api/admin'
+import { addClassMembers, createClass, fetchClasses, fetchUsers, updateClass } from '@/api/admin'
 import type { SchoolClass, User } from '@/types/api'
 
 const loading = shallowRef(false)
 const dialogVisible = shallowRef(false)
 const memberVisible = shallowRef(false)
+const dialogMode = shallowRef<'create' | 'edit'>('create')
 const classes = shallowRef<SchoolClass[]>([])
 const users = shallowRef<User[]>([])
 const selectedClass = shallowRef<SchoolClass | null>(null)
 const form = reactive({
   name: '',
   description: '',
+  is_active: true,
 })
 const memberForm = reactive({
-  user_id: undefined as number | undefined,
+  user_ids: [] as number[],
   role: 'student',
 })
 const activeUsers = computed(() => users.value.filter((item) => item.is_active))
+const dialogTitle = computed(() => (dialogMode.value === 'create' ? '新建班级' : '编辑班级'))
 
 async function loadClasses() {
   loading.value = true
@@ -36,26 +39,52 @@ async function loadUsers() {
   users.value = response.data.items
 }
 
-async function submitClass() {
+function resetForm() {
-  await createClass(form)
-  ElMessage.success('班级已创建')
-  dialogVisible.value = false
   form.name = ''
   form.description = ''
+  form.is_active = true
+}
+
+function openCreateDialog() {
+  dialogMode.value = 'create'
+  selectedClass.value = null
+  resetForm()
+  dialogVisible.value = true
+}
+
+function openEditDialog(row: SchoolClass) {
+  dialogMode.value = 'edit'
+  selectedClass.value = row
+  form.name = row.name
+  form.description = row.description ?? ''
+  form.is_active = row.is_active
+  dialogVisible.value = true
+}
+
+async function submitClass() {
+  if (dialogMode.value === 'create') {
+    await createClass({ name: form.name, description: form.description })
+    ElMessage.success('班级已创建')
+  } else if (selectedClass.value) {
+    await updateClass(selectedClass.value.id, form)
+    ElMessage.success('班级已更新')
+  }
+  dialogVisible.value = false
+  resetForm()
   await loadClasses()
 }
 
 function openMemberDialog(row: SchoolClass) {
   selectedClass.value = row
-  memberForm.user_id = undefined
+  memberForm.user_ids = []
   memberForm.role = 'student'
   memberVisible.value = true
 }
 
 async function submitMember() {
-  if (!selectedClass.value || !memberForm.user_id) return
+  if (!selectedClass.value || memberForm.user_ids.length === 0) return
-  await addClassMember(selectedClass.value.id, {
+  await addClassMembers(selectedClass.value.id, {
-    user_id: memberForm.user_id,
+    user_ids: memberForm.user_ids,
     role: memberForm.role,
   })
   ElMessage.success('成员已加入班级')
@@ -76,7 +105,7 @@ onMounted(() => {
         <h1 class="page-title">班级管理</h1>
         <p class="muted text-sm mt-1">创建班级，使用班级码或后台分配成员。</p>
       </div>
-      <ElButton :icon="Plus" type="primary" @click="dialogVisible = true">新建班级</ElButton>
+      <ElButton :icon="Plus" type="primary" @click="openCreateDialog">新建班级</ElButton>
     </div>
 
     <ElTable v-loading="loading" :data="classes" row-key="id">
@@ -88,15 +117,21 @@ onMounted(() => {
       </ElTableColumn>
       <ElTableColumn prop="members_count" label="成员数" width="100" />
       <ElTableColumn prop="description" label="说明" min-width="220" show-overflow-tooltip />
-      <ElTableColumn label="操作" width="140">
+      <ElTableColumn prop="is_active" label="状态" width="100">
         <template #default="{ row }">
+          <ElTag :type="row.is_active ? 'success' : 'info'">{{ row.is_active ? '启用' : '停用' }}</ElTag>
+        </template>
+      </ElTableColumn>
+      <ElTableColumn label="操作" width="230" fixed="right">
+        <template #default="{ row }">
+          <ElButton :icon="Edit" size="small" @click="openEditDialog(row)">编辑</ElButton>
           <ElButton :icon="UserFilled" size="small" @click="openMemberDialog(row)">分配成员</ElButton>
         </template>
       </ElTableColumn>
     </ElTable>
   </section>
 
-  <ElDialog v-model="dialogVisible" title="新建班级" width="420px">
+  <ElDialog v-model="dialogVisible" :title="dialogTitle" width="420px">
     <ElForm :model="form" label-position="top">
       <ElFormItem label="名称">
         <ElInput v-model="form.name" />
@@ -104,6 +139,9 @@ onMounted(() => {
       <ElFormItem label="说明">
         <ElInput v-model="form.description" type="textarea" />
       </ElFormItem>
+      <ElFormItem v-if="dialogMode === 'edit'" label="状态">
+        <ElSwitch v-model="form.is_active" active-text="启用" inactive-text="停用" />
+      </ElFormItem>
     </ElForm>
     <template #footer>
       <ElButton @click="dialogVisible = false">取消</ElButton>
@@ -114,7 +152,7 @@ onMounted(() => {
   <ElDialog v-model="memberVisible" title="分配成员" width="420px">
     <ElForm :model="memberForm" label-position="top">
       <ElFormItem label="用户">
-        <ElSelect v-model="memberForm.user_id" class="w-full" filterable>
+        <ElSelect v-model="memberForm.user_ids" class="w-full" filterable multiple collapse-tags collapse-tags-tooltip placeholder="可一次选择多个用户">
           <ElOption
             v-for="item in activeUsers"
             :key="item.id"

frontend/src/views/admin/DashboardView.vue

@@ -1,21 +1,88 @@
 <script setup lang="ts">
-const stats = [
+import { computed, onMounted, shallowRef } from 'vue'
-  { label: '题库', value: '0', tone: 'moss' },
+import VChart from 'vue-echarts'
-  { label: '题目', value: '0', tone: 'indigo' },
+import { use } from 'echarts/core'
-  { label: '今日作答', value: '0', tone: 'amber' },
+import { BarChart } from 'echarts/charts'
-  { label: '平均正确率', value: '--', tone: 'moss' },
+import { GridComponent, TooltipComponent } from 'echarts/components'
-]
+import { CanvasRenderer } from 'echarts/renderers'
+import { fetchDashboard } from '@/api/admin'
+import type { DashboardData } from '@/types/api'
+
+use([CanvasRenderer, BarChart, GridComponent, TooltipComponent])
+
+const loading = shallowRef(false)
+const dashboard = shallowRef<DashboardData | null>(null)
+const stats = computed(() => [
+  { label: '题库', value: dashboard.value?.stats.banks ?? 0 },
+  { label: '题目', value: dashboard.value?.stats.questions ?? 0 },
+  { label: '今日作答', value: dashboard.value?.stats.today_answered ?? 0 },
+  { label: '平均正确率', value: `${dashboard.value?.stats.accuracy ?? 0}%` },
+  { label: '当前错题', value: dashboard.value?.stats.wrong_questions ?? 0 },
+  { label: '用户', value: dashboard.value?.stats.users ?? '-' },
+])
+const trendOption = computed(() => ({
+  tooltip: { trigger: 'axis' },
+  grid: { left: 36, right: 16, top: 24, bottom: 28 },
+  xAxis: { type: 'category', data: (dashboard.value?.trend ?? []).map((item) => item.day) },
+  yAxis: { type: 'value' },
+  series: [{ name: '作答题数', type: 'bar', data: (dashboard.value?.trend ?? []).map((item) => item.answered_count) }],
+}))
+const modeLabels: Record<string, string> = {
+  memorize: '背题',
+  sequence: '顺序刷题',
+  random: '随机刷题',
+  paper: '整卷测试',
+  practice: '刷题',
+}
+
+async function load() {
+  loading.value = true
+  try {
+    dashboard.value = (await fetchDashboard()).data
+  } finally {
+    loading.value = false
+  }
+}
+
+onMounted(load)
 </script>
 
 <template>
-  <div class="dashboard-grid">
+  <div v-loading="loading" class="dashboard-grid">
     <section v-for="item in stats" :key="item.label" class="stat-card">
       <p>{{ item.label }}</p>
       <strong>{{ item.value }}</strong>
     </section>
+
     <section class="panel dashboard-wide">
-      <h2 class="page-title">今日工作</h2>
+      <div class="section-head">
-      <ElEmpty description="完成数据库配置并导入题库后，这里会显示练习趋势和班级排行。" />
+        <h2 class="page-title">近 7 天作答趋势</h2>
+        <ElButton text type="primary" @click="load">刷新</ElButton>
+      </div>
+      <VChart class="trend-chart" :option="trendOption" autoresize />
+    </section>
+
+    <section class="panel dashboard-panel">
+      <h2 class="page-title mb-3">班级排行</h2>
+      <ElTable :data="dashboard?.class_ranking ?? []" row-key="id" height="280">
+        <ElTableColumn prop="name" label="班级" min-width="140" show-overflow-tooltip />
+        <ElTableColumn prop="members_count" label="成员" width="80" />
+        <ElTableColumn prop="attempts" label="练习" width="80" />
+      </ElTable>
+    </section>
+
+    <section class="panel dashboard-panel">
+      <h2 class="page-title mb-3">最近练习</h2>
+      <ElTable :data="dashboard?.recent_attempts ?? []" row-key="id" height="280">
+        <ElTableColumn prop="user_name" label="用户" min-width="100" show-overflow-tooltip />
+        <ElTableColumn prop="bank_name" label="题库/试卷" min-width="140" show-overflow-tooltip />
+        <ElTableColumn label="模式" width="90">
+          <template #default="{ row }">{{ modeLabels[row.mode] || row.mode }}</template>
+        </ElTableColumn>
+        <ElTableColumn label="正确" width="90">
+          <template #default="{ row }">{{ row.correct_count }}/{{ row.total_questions }}</template>
+        </ElTableColumn>
+      </ElTable>
     </section>
   </div>
 </template>
@@ -23,7 +90,7 @@ const stats = [
 <style scoped>
 .dashboard-grid {
   display: grid;
-  grid-template-columns: repeat(4, minmax(0, 1fr));
+  grid-template-columns: repeat(6, minmax(0, 1fr));
   gap: 16px;
 }
 
@@ -48,9 +115,30 @@ const stats = [
   padding: 20px;
 }
 
-@media (max-width: 900px) {
+.dashboard-panel {
+  grid-column: span 3;
+  padding: 20px;
+}
+
+.section-head {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 12px;
+}
+
+.trend-chart {
+  width: 100%;
+  height: 300px;
+}
+
+@media (max-width: 1100px) {
   .dashboard-grid {
-    grid-template-columns: repeat(2, minmax(0, 1fr));
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+  }
+
+  .dashboard-panel {
+    grid-column: 1 / -1;
   }
 }
 

frontend/src/views/admin/UsersView.vue

@@ -2,7 +2,7 @@
 import { computed, onMounted, reactive, shallowRef, watch } from 'vue'
 import { ElMessage, ElMessageBox } from 'element-plus'
 import { Delete, Edit } from '@element-plus/icons-vue'
-import { createInvite, createUser, fetchInvites, fetchUsers, updateUser } from '@/api/admin'
+import { createInvite, createUser, deleteInvite, fetchInvites, fetchUsers, updateUser } from '@/api/admin'
 import type { User } from '@/types/api'
 
 const users = shallowRef<User[]>([])
@@ -124,6 +124,17 @@ async function copyInviteLink(row: Record<string, unknown>) {
   await copyText(registerLink(String(row.code ?? '')), '注册链接已复制')
 }
 
+async function removeInvite(row: Record<string, unknown>) {
+  await ElMessageBox.confirm(`确定删除邀请码 ${String(row.code ?? '')} 吗？`, '删除邀请码', {
+    confirmButtonText: '删除',
+    cancelButtonText: '取消',
+    type: 'warning',
+  })
+  await deleteInvite(Number(row.id))
+  ElMessage.success('邀请码已删除')
+  await load()
+}
+
 async function saveInvite() {
   if (inviteForm.assigned_name.trim()) {
     inviteForm.max_uses = 1
@@ -193,10 +204,11 @@ onMounted(load)
           </ElTableColumn>
           <ElTableColumn prop="max_uses" label="可用次数" />
           <ElTableColumn prop="used_count" label="已使用" />
-          <ElTableColumn label="操作" width="220" fixed="right">
+          <ElTableColumn label="操作" width="320" fixed="right">
             <template #default="{ row }">
               <ElButton size="small" @click="copyInviteCode(row)">复制分享码</ElButton>
               <ElButton size="small" type="primary" plain @click="copyInviteLink(row)">复制分享链接</ElButton>
+              <ElButton :icon="Delete" size="small" type="danger" plain @click="removeInvite(row)">删除</ElButton>
             </template>
           </ElTableColumn>
         </ElTable>