备份：修复前完整项目快照 2026-04-19

backend/routes_backup/exchange.js

@@ -0,0 +1,87 @@
+const express = require('express');
+const db = require('../db-sqlite');
+const { authenticate } = require('../middleware/auth');
+
+module.exports = function(app) {
+  const router = express.Router();
+
+  router.get('/latest', authenticate, async (req, res) => {
+    try {
+      const latestRateResult = await db.query('SELECT currency, rate, updated_at FROM exchange_rates ORDER BY updated_at DESC LIMIT 1');
+      const latestRate = latestRateResult.rows[0];
+      res.json({ success: true, data: latestRate });
+    } catch (error) {
+      console.error('获取最新汇率失败:', error);
+      res.status(500).json({ success: false, message: '获取最新汇率失败' });
+    }
+  });
+
+  router.get('/', authenticate, async (req, res) => {
+    try {
+      const ratesResult = await db.query('SELECT id, currency, rate, updated_at FROM exchange_rates ORDER BY updated_at DESC');
+      const rates = ratesResult.rows;
+      res.json({ success: true, data: rates, count: rates.length });
+    } catch (error) {
+      console.error('获取汇率列表失败:', error);
+      res.status(500).json({ success: false, message: '获取汇率列表失败' });
+    }
+  });
+
+  router.get('/history', authenticate, async (req, res) => {
+    try {
+      const { currency, startDate, endDate } = req.query;
+      let query = 'SELECT id, currency, rate, updated_at FROM exchange_rates';
+      const params = [];
+      
+      if (currency) {
+        query += ' WHERE currency = ?';
+        params.push(currency);
+      }
+      
+      if (startDate) {
+        query += (params.length > 0 ? ' AND' : ' WHERE') + ' updated_at >= ?';
+        params.push(startDate);
+      }
+      
+      if (endDate) {
+        query query += ' AND updated_at <= ?';
+        params.push(endDate);
+      }
+      
+      query += ' ORDER BY updated_at DESC';
+      
+      const historyResult = await db.query(query, params);
+      const history = historyResult.rows;
+      res.json({ success: true, data: history, count: history.length });
+    } catch (error) {
+      console.error('获取汇率历史失败:', error);
+      res.status(500).json({ success: false, message: '获取汇率历史失败' });
+    }
+  });
+
+  router.post('/', authenticate, async (req, res) => {
+    try {
+      const { currency, rate } = req.body;
+      
+      if (!currency || !rate) {
+        return res.status(400).json({ success: false, message: '货币和汇率为必填项' });
+      }
+      
+      const result = await db.query(
+        'INSERT INTO exchange_rates (currency, rate, updated_at) VALUES (?, ?, CURRENT_TIMESTAMP)',
+        [currency, rate]
+      );
+      
+      const newRateResult = await db.query('SELECT id, currency, rate, updated_at FROM exchange_rates WHERE id = ?', [result.lastID]);
+      const newRate = newRateResult.rows[0];
+      
+      console.log(`汇率 ${currency} = ${rate} 更新成功，由 ${req.user.username} 操作`);
+      res.json({ success: true, data: newRate });
+    } catch (error) {
+      console.error('更新汇率失败:', error);
+      res.status(500).json({ success: false, message: '更新汇率失败' });
+    }
+  });
+
+  app.use('/api/exchange-rates', router);
+};