后端: 添加用户统计API

backend/src/index.js

@@ -9,6 +9,7 @@ const userRoutes = require('./routes/user');
 const searchRoutes = require('./routes/search');
 const batchRoutes = require('./routes/batch');
 const trashRoutes = require('./routes/trash');
+const statsRoutes = require('./routes/stats');
 const errorHandler = require('./middleware/errorHandler');
 
 const app = express();
@@ -26,6 +27,7 @@ app.use('/api/user', userRoutes);
 app.use('/api/search', searchRoutes);
 app.use('/api/batch', batchRoutes);
 app.use('/api/trash', trashRoutes);
+app.use('/api/stats', statsRoutes);
 
 app.use(errorHandler);
 

backend/src/routes/stats.js

@@ -0,0 +1,33 @@
+const express = require('express');
+const db = require('../db');
+
+const router = express.Router();
+
+// Get user statistics
+router.get('/', (req, res) => {
+  const token = req.headers.authorization?.replace('Bearer ', '');
+  if (!token) return res.status(401).json({ error: 'No token' });
+  
+  try {
+    const jwt = require('jsonwebtoken');
+    const decoded = jwt.verify(token, process.env.JWT_SECRET || 'clouddisk-secret-key');
+    
+    Promise.all([
+      db.query('SELECT COUNT(*) as total FROM files WHERE user_id = ? AND deleted_at IS NULL', [decoded.userId]),
+      db.query('SELECT SUM(size) as used FROM files WHERE user_id = ? AND deleted_at IS NULL AND is_folder = 0', [decoded.userId]),
+      db.query('SELECT COUNT(*) as total FROM files WHERE user_id = ? AND deleted_at IS NOT NULL', [decoded.userId]),
+      db.query('SELECT COUNT(*) as total FROM shares WHERE file_id IN (SELECT id FROM files WHERE user_id = ?)', [decoded.userId])
+    ]).then(([files, storage, trash, shares]) => {
+      res.json({
+        totalFiles: files[0]?.total || 0,
+        storageUsed: storage[0]?.used || 0,
+        trashCount: trash[0]?.total || 0,
+        shareCount: shares[0]?.total || 0
+      });
+    });
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+module.exports = router;