feat: 管理员重新判题

Author: CodeJudge

backend/src/routes/submissions.js

@@ -1,7 +1,8 @@
 const router = require('express').Router();
 const { submit, listSubmissions, getSubmission } = require('../controllers/submissionController');
 const { authenticate, adminOnly } = require('../middleware/auth');
-const { queryAll } = require('../config/db');
+const { queryAll, queryOne, run } = require('../config/db');
+const { judgeCode, judgeChoice, judgeFillBlank } = require('../services/judgeService');
 
 router.post('/', authenticate, submit);
 router.get('/', authenticate, listSubmissions);
@@ -20,6 +21,38 @@ router.get('/admin/all', authenticate, adminOnly, (req, res) => {
   );
   res.json({ submissions, total, page: Number(page), totalPages: Math.ceil(total / Number(limit)) });
 });
+router.post('/admin/rejudge/:id', authenticate, adminOnly, (req, res) => {
+  const submission = queryOne('SELECT * FROM submissions WHERE id = ?', [req.params.id]);
+  if (!submission) return res.status(404).json({ error: '提交记录不存在' });
+  const problem = queryOne('SELECT * FROM problems WHERE id = ?', [submission.problem_id]);
+  if (!problem) return res.status(404).json({ error: '题目不存在' });
+
+  let result;
+  try {
+    let testCases;
+    try { testCases = JSON.parse(problem.test_cases); } catch { testCases = []; }
+
+    if (submission.type === 'programming' || problem.type === 'programming') {
+      result = judgeCode(submission.code, submission.language || 'javascript', testCases);
+    } else if (submission.type === 'choice' || problem.type === 'choice') {
+      let options; try { options = JSON.parse(problem.options); } catch { options = []; }
+      result = judgeChoice(submission.answer, problem.blanks_answer, options);
+    } else {
+      let answers; try { answers = JSON.parse(problem.blanks_answer); } catch { answers = []; }
+      result = judgeFillBlank(submission.answer, answers, problem.solution);
+    }
+
+    run('UPDATE submissions SET status = ?, score = ?, details = ? WHERE id = ?',
+      [result.status, result.score, JSON.stringify(result.details), submission.id]);
+    if (result.status === 'accepted') {
+      run('UPDATE problems SET accepted_count = accepted_count + 1 WHERE id = ?', [submission.problem_id]);
+    }
+
+    res.json({ message: '重新判题完成', result });
+  } catch (e) {
+    res.status(500).json({ error: e.message });
+  }
+});
 router.get('/:id', authenticate, getSubmission);
 
 module.exports = router;

frontend/src/pages/Admin.tsx

@@ -22,6 +22,7 @@ export default function Admin() {
   const [allSubmissions, setAllSubmissions] = useState<any[]>([]);
   const [allLoading, setAllLoading] = useState(false);
   const [dbOptimizing, setDbOptimizing] = useState(false);
+  const [rejudgingId, setRejudgingId] = useState<number | null>(null);
 
   const fetchData = useCallback(async () => {
     setLoading(true);
@@ -131,6 +132,24 @@ export default function Admin() {
     finally { setAllLoading(false); }
   };
 
+  const handleRejudge = async (id: number) => {
+    setRejudgingId(id);
+    try {
+      const token = localStorage.getItem('oj_token');
+      const res = await fetch(`/api/submissions/admin/rejudge/${id}`, {
+        method: 'POST', headers: { Authorization: `Bearer ${token}` },
+      });
+      const data = await res.json();
+      if (res.ok) {
+        toast.success(`重新判题完成: ${data.result.status}`);
+        fetchAllSubmissions();
+      } else {
+        toast.error(data.error || '重判失败');
+      }
+    } catch { toast.error('重判失败'); }
+    finally { setRejudgingId(null); }
+  };
+
   const TYPE_LABELS: Record<string, string> = {
     programming: '编程题',
     choice: '选择题',
@@ -452,6 +471,7 @@ export default function Admin() {
                   <th className="text-left py-2 px-3 text-dark-400">题目</th>
                   <th className="text-left py-2 px-3 text-dark-400">状态</th>
                   <th className="text-left py-2 px-3 text-dark-400 hidden md:table-cell">时间</th>
+                  <th className="text-center py-2 px-3 text-dark-400">操作</th>
                 </tr>
               </thead>
               <tbody>
@@ -468,6 +488,14 @@ export default function Admin() {
                       <SubmissionStatus status={s.status} score={s.score} />
                     </td>
                     <td className="py-2 px-3 text-dark-400 hidden md:table-cell text-xs">{s.created_at?.slice(0, 16).replace('T', ' ')}</td>
+                    <td className="py-2 px-3 text-center">
+                      <button
+                        onClick={() => handleRejudge(s.id)}
+                        disabled={rejudgingId === s.id}
+                        className="text-xs text-cyan-400 hover:text-cyan-300 disabled:opacity-50 transition-colors"
+                      >
+                        {rejudgingId === s.id ? <Loader2 className="w-3.5 h-3.5 animate-spin mx-auto" /> : '重判'}
+                      </button>
                   </tr>
                 ))}
               </tbody>