备份：修复前完整项目快照 2026-04-19

2026-04-19 19:15:01 +08:00
parent 5266d7732b
commit d00f41a120
449 changed files with 89577 additions and 23251 deletions
@@ -0,0 +1,101 @@
+const express = require('express');
+const db = require('../db');
+const router = express.Router();
+
+router.get('/latest', async (req, res) => {
+  try {
+    const result = await db.query(`
+      SELECT e1.currency_code, e1.to_currency_code, e1.rate, e1.effective_date, e1.created_at
+      FROM exchange_rates e1
+      JOIN (
+        SELECT currency_code, to_currency_code, MAX(effective_date) as max_date
+        FROM exchange_rates
+        WHERE effective_date <= CURRENT_DATE
+        GROUP BY currency_code, to_currency_code
+      ) e2 ON e1.currency_code = e2.currency_code AND e1.to_currency_code = e2.to_currency_code AND e1.effective_date = e2.max_date
+    `);
+    const data = {};
+    let latestUpdateTime = null;
+    result.rows.forEach(row => {
+      const pairKey = `${row.currency_code}_${row.to_currency_code}`;
+      data[pairKey] = parseFloat(row.rate);
+      if (!latestUpdateTime || new Date(row.created_at) > new Date(latestUpdateTime)) {
+        latestUpdateTime = row.created_at;
+      }
+    });
+    if (Object.keys(data).length === 0) {
+      data.CNY_LAK = 2900;
+      data.CNY_USD = 0.143;
+      data.CNY_THB = 4.8;
+      data.USD_LAK = 20300;
+      data.THB_LAK = 604;
+    }
+    res.json({
+      success: true,
+      data: data,
+      updated_at: latestUpdateTime || new Date().toISOString(),
+      date: new Date().toISOString().split('T')[0]
+    });
+  } catch (error) {
+    console.error('获取汇率失败:', error);
+    res.status(500).json({ success: false, message: '获取汇率失败', error: error.message });
+  }
+});
+
+router.get('/', async (req, res) => {
+  try {
+    const result = await db.query(`
+      SELECT * FROM exchange_rates ORDER BY effective_date DESC LIMIT 20
+    `);
+    res.json({ success: true, data: result.rows, count: result.rows.length });
+  } catch (error) {
+    console.error('获取汇率失败:', error);
+    res.status(500).json({ success: false, message: '获取汇率失败', error: error.message });
+  }
+});
+
+router.get('/history', async (req, res) => {
+  try {
+    const limit = parseInt(req.query.limit) || 20;
+    const result = await db.query(`
+      SELECT * FROM exchange_rates ORDER BY created_at DESC LIMIT $1
+    `, [limit]);
+    const formattedData = result.rows.map(row => ({
+      ...row,
+      pair_key: `${row.currency_code}_${row.to_currency_code}`,
+      from_currency: row.currency_code,
+      to_currency: row.to_currency_code
+    }));
+    res.json({ success: true, data: formattedData });
+  } catch (error) {
+    console.error('获取历史汇率失败:', error);
+    res.status(500).json({ success: false, message: '获取历史汇率失败', error: error.message });
+  }
+});
+
+router.post('/', async (req, res) => {
+  try {
+    const { pair_key, rate, effective_date, from_currency, to_currency } = req.body;
+    let currencyCode = from_currency;
+    let toCurrencyCode = to_currency;
+    if (!currencyCode && pair_key) {
+      const parts = pair_key.split('_');
+      currencyCode = parts[0];
+      toCurrencyCode = parts[1];
+    }
+    if (!currencyCode || !toCurrencyCode || rate === undefined || !effective_date) {
+      return res.status(400).json({ success: false, message: '缺少必要参数' });
+    }
+    const result = await db.query(
+      `INSERT INTO exchange_rates (currency_code, to_currency_code, rate, effective_date, created_at)
+       VALUES ($1, $2, $3, $4, CURRENT_TIMESTAMP) RETURNING *`,
+      [currencyCode, toCurrencyCode, rate, effective_date]
+    );
+    res.json({ success: true, message: '汇率保存成功', data: result.rows[0] });
+  } catch (error) {
+    console.error('保存汇率失败:', error);
+    res.status(500).json({ success: false, message: '保存汇率失败', error: error.message });
+  }
+});
+
+module.exports = router;