feat: 实现题目批量操作 — 发布/下架/删除（Phase 1c）

src/components/ui/checkbox.tsx

@@ -0,0 +1,30 @@
+import * as React from "react"
+import { CheckIcon } from "lucide-react"
+import { Checkbox as CheckboxPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Checkbox({
+  className,
+  ...props
+}: React.ComponentProps<typeof CheckboxPrimitive.Root>) {
+  return (
+    <CheckboxPrimitive.Root
+      data-slot="checkbox"
+      className={cn(
+        "peer size-4 shrink-0 rounded-[4px] border border-input shadow-xs transition-shadow outline-none focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-destructive/20 data-[state=checked]:border-primary data-[state=checked]:bg-primary data-[state=checked]:text-primary-foreground dark:bg-input/30 dark:aria-invalid:ring-destructive/40 dark:data-[state=checked]:bg-primary",
+        className
+      )}
+      {...props}
+    >
+      <CheckboxPrimitive.Indicator
+        data-slot="checkbox-indicator"
+        className="grid place-content-center text-current transition-none"
+      >
+        <CheckIcon className="size-3.5" />
+      </CheckboxPrimitive.Indicator>
+    </CheckboxPrimitive.Root>
+  )
+}
+
+export { Checkbox }

src/lib/api/question-api.ts

@@ -55,6 +55,21 @@ export async function updateQuestionStatus(
     .json<ApiResponse<Question>>()
 }
 
+export type BatchAction = "publish" | "archive" | "delete"
+
+export interface BatchResult {
+  affected: number
+}
+
+export async function batchOperateQuestions(
+  ids: string[],
+  action: BatchAction
+): Promise<ApiResponse<BatchResult>> {
+  return apiClient
+    .post("questions/batch", { json: { ids, action } })
+    .json<ApiResponse<BatchResult>>()
+}
+
 export interface ImportResult {
   imported: number
   failed: number

src/routes/questions/index.tsx

@@ -4,8 +4,9 @@ import {
   useReactTable,
   getCoreRowModel,
   flexRender,
+  type ColumnDef,
 } from "@tanstack/react-table"
-import { Plus, Search } from "lucide-react"
+import { Plus, Search, Trash2, EyeOff, Send } from "lucide-react"
 import { Button } from "@/components/ui/button"
 import { Input } from "@/components/ui/input"
 import {
@@ -36,7 +37,8 @@ import {
 import { getColumns } from "@/components/question/columns"
 import { StatusTransitionDialog } from "@/components/question/StatusTransitionDialog"
 import { ImportQuestionsDialog } from "@/components/question/ImportQuestionsDialog"
-import { fetchQuestions, deleteQuestion, updateQuestionStatus } from "@/lib/api/question-api"
+import { Checkbox } from "@/components/ui/checkbox"
+import { fetchQuestions, deleteQuestion, updateQuestionStatus, batchOperateQuestions } from "@/lib/api/question-api"
 import { fetchCategories } from "@/lib/api/category-api"
 import { DIFFICULTY_LABELS, QUESTION_STATUSES } from "@/lib/constants"
 import type { Question, QuestionStatus, Difficulty } from "@/types/question"
@@ -67,6 +69,11 @@ export default function QuestionsPage() {
   // 批量导入对话框
   const [importOpen, setImportOpen] = useState(false)
 
+  // 批量操作
+  const [batchConfirmOpen, setBatchConfirmOpen] = useState(false)
+  const [batchAction, setBatchAction] = useState<"publish" | "archive" | "delete">("delete")
+  const [batchSubmitting, setBatchSubmitting] = useState(false)
+
   const totalPages = Math.max(1, Math.ceil(total / PAGE_SIZE))
 
   // 加载分类列表（用于筛选和列显示）
@@ -128,18 +135,63 @@ export default function QuestionsPage() {
     setDeleteOpen(true)
   }
 
+  // 批量操作
+
+  async function confirmBatchAction() {
+    setBatchSubmitting(true)
+    try {
+      const ids = table.getFilteredSelectedRowModel().rows.map((r) => r.original.id)
+      await batchOperateQuestions(ids, batchAction)
+      setBatchConfirmOpen(false)
+      table.resetRowSelection()
+      await loadQuestions()
+    } finally {
+      setBatchSubmitting(false)
+    }
+  }
+
+  function openBatchConfirm(action: "publish" | "archive" | "delete") {
+    setBatchAction(action)
+    setBatchConfirmOpen(true)
+  }
+
   const columns = getColumns({
     categories,
     onDelete: openDelete,
     onStatusChange: handleStatusChange,
   })
 
+  // 选择列 + 数据列
+  const tableColumns: ColumnDef<Question>[] = [
+    {
+      id: "select",
+      header: ({ table: t }) => (
+        <Checkbox
+          checked={t.getIsAllPageRowsSelected() || (t.getIsSomePageRowsSelected() && "indeterminate")}
+          onCheckedChange={(value: boolean) => t.toggleAllPageRowsSelected(!!value)}
+          aria-label="全选"
+        />
+      ),
+      cell: ({ row }) => (
+        <Checkbox
+          checked={row.getIsSelected()}
+          onCheckedChange={(value: boolean) => row.toggleSelected(!!value)}
+          aria-label="选择"
+        />
+      ),
+    },
+    ...columns,
+  ]
+
   const table = useReactTable({
     data: questions,
-    columns,
+    columns: tableColumns,
     getCoreRowModel: getCoreRowModel(),
+    enableRowSelection: true,
   })
 
+  const selectedCount = table.getFilteredSelectedRowModel().rows.length
+
   return (
     <div className="space-y-6">
       {/* 页面头部 */}
@@ -234,6 +286,49 @@ export default function QuestionsPage() {
         </Select>
       </div>
 
+      {/* 批量操作栏 */}
+      {selectedCount > 0 && (
+        <div className="flex items-center gap-3 rounded-lg border bg-muted/50 px-4 py-2">
+          <span className="text-sm text-muted-foreground">
+            已选 {selectedCount} 项
+          </span>
+          <div className="flex gap-2">
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => openBatchConfirm("publish")}
+            >
+              <Send className="size-3.5" />
+              批量发布
+            </Button>
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => openBatchConfirm("archive")}
+            >
+              <EyeOff className="size-3.5" />
+              批量下架
+            </Button>
+            <Button
+              variant="outline"
+              size="sm"
+              className="text-destructive hover:text-destructive"
+              onClick={() => openBatchConfirm("delete")}
+            >
+              <Trash2 className="size-3.5" />
+              批量删除
+            </Button>
+          </div>
+          <Button
+            variant="ghost"
+            size="sm"
+            onClick={() => table.resetRowSelection()}
+          >
+            取消选择
+          </Button>
+        </div>
+      )}
+
       {/* 表格 */}
       <div className="rounded-lg border">
         <Table>
@@ -353,6 +448,34 @@ export default function QuestionsPage() {
         onOpenChange={setImportOpen}
         onSuccess={loadQuestions}
       />
+
+      {/* 批量操作确认 */}
+      <AlertDialog open={batchConfirmOpen} onOpenChange={setBatchConfirmOpen}>
+        <AlertDialogContent>
+          <AlertDialogHeader>
+            <AlertDialogTitle>
+              {batchAction === "delete" ? "批量删除" : batchAction === "publish" ? "批量发布" : "批量下架"}
+            </AlertDialogTitle>
+            <AlertDialogDescription>
+              {batchAction === "delete"
+                ? `确定要删除选中的 ${selectedCount} 道题目吗？此操作不可撤销。`
+                : batchAction === "publish"
+                  ? `确定要将选中的 ${selectedCount} 道题目发布吗？`
+                  : `确定要将选中的 ${selectedCount} 道题目下架吗？`}
+            </AlertDialogDescription>
+          </AlertDialogHeader>
+          <AlertDialogFooter>
+            <AlertDialogCancel disabled={batchSubmitting}>取消</AlertDialogCancel>
+            <AlertDialogAction
+              onClick={confirmBatchAction}
+              disabled={batchSubmitting}
+              className={batchAction === "delete" ? "bg-destructive text-white hover:bg-destructive/90" : undefined}
+            >
+              {batchSubmitting ? "处理中..." : "确认"}
+            </AlertDialogAction>
+          </AlertDialogFooter>
+        </AlertDialogContent>
+      </AlertDialog>
     </div>
   )
 }