feat: 添加批量删除、最近活动、界面优化等功能

src/routes/settings.js

@@ -0,0 +1,75 @@
+import express from 'express';
+import fs from 'fs/promises';
+import { authenticateAdmin } from '../middleware/auth.js';
+
+const router = express.Router();
+
+// 所有路由都需要认证
+router.use(authenticateAdmin);
+
+// 配置文件路径
+const CONFIG_FILE = '.env';
+
+// 获取负载均衡策略
+router.get('/load-balance-strategy', async (req, res) => {
+  try {
+    const strategy = process.env.LOAD_BALANCE_STRATEGY || 'round-robin';
+    res.json({ strategy });
+  } catch (error) {
+    console.error('获取策略失败:', error);
+    res.status(500).json({ error: '获取策略失败' });
+  }
+});
+
+// 更新负载均衡策略
+router.post('/load-balance-strategy', async (req, res) => {
+  try {
+    const { strategy } = req.body;
+    
+    if (!['round-robin', 'random', 'least-used'].includes(strategy)) {
+      return res.status(400).json({ error: '无效的策略' });
+    }
+    
+    // 读取 .env 文件
+    let envContent = '';
+    try {
+      envContent = await fs.readFile(CONFIG_FILE, 'utf-8');
+    } catch (err) {
+      // 文件不存在，创建新的
+      envContent = '';
+    }
+    
+    // 更新或添加 LOAD_BALANCE_STRATEGY
+    const lines = envContent.split('\n');
+    let found = false;
+    
+    for (let i = 0; i < lines.length; i++) {
+      if (lines[i].startsWith('LOAD_BALANCE_STRATEGY=')) {
+        lines[i] = `LOAD_BALANCE_STRATEGY=${strategy}`;
+        found = true;
+        break;
+      }
+    }
+    
+    if (!found) {
+      lines.push(`LOAD_BALANCE_STRATEGY=${strategy}`);
+    }
+    
+    // 写回文件
+    await fs.writeFile(CONFIG_FILE, lines.join('\n'), 'utf-8');
+    
+    // 更新环境变量
+    process.env.LOAD_BALANCE_STRATEGY = strategy;
+    
+    res.json({ 
+      success: true, 
+      message: '策略已更新，将在下次请求时生效',
+      strategy 
+    });
+  } catch (error) {
+    console.error('更新策略失败:', error);
+    res.status(500).json({ error: '更新策略失败' });
+  }
+});
+
+export default router;