Migrate project from typing_practiceweb

server/routes/userWordPass.ts

@@ -0,0 +1,56 @@
+import express from 'express';
+import { User } from '../models/User';
+import { WordRecord } from '../models/Vocabulary';
+
+const router = express.Router();
+
+/**
+ * 查询指定用户名前缀的用户及其通过单词数
+ * GET /api/user-word-pass?prefix=2023101
+ */
+router.get('/user-word-pass', async (req, res) => {
+  try {
+    const { prefix } = req.query;
+    if (!prefix || typeof prefix !== 'string') {
+      return res.status(400).json({ message: '缺少前缀参数' });
+    }
+
+    // 1. 查找所有以 prefix 开头的用户
+    const users = await User.find({ username: { $regex: `^${prefix}` } })
+      .select('_id username fullname')
+      .lean();
+
+    if (users.length === 0) {
+      return res.json([]);
+    }
+
+    // 2. 查找这些用户的通过单词数
+    const userIds = users.map(u => u._id);
+
+    // 聚合统计每个用户 isFullyMastered 为 true 的数量
+    const wordPassStats = await WordRecord.aggregate([
+      { $match: { user: { $in: userIds }, isFullyMastered: true } },
+      { $group: { _id: '$user', passCount: { $sum: 1 } } }
+    ]);
+
+    // 组装统计结果
+    const passMap = new Map<string, number>();
+    wordPassStats.forEach(item => {
+      passMap.set(item._id.toString(), item.passCount);
+    });
+
+    // 3. 合并并排序
+    const result = users.map(u => ({
+      username: u.username,
+      fullname: u.fullname,
+      passCount: passMap.get(u._id.toString()) || 0
+    })).sort((a, b) => b.passCount - a.passCount);
+
+    res.json(result);
+  } catch (error) {
+    console.error('查询用户通过单词数失败:', error);
+    res.status(500).json({ message: '服务器错误' });
+  }
+});
+
+export default router;