first commit

api/routes/stats.ts

@@ -0,0 +1,196 @@
+/**
+ * Stats API routes
+ */
+import express, { type Request, type Response } from 'express';
+import { getDatabase } from '../config/database.js';
+
+const router = express.Router();
+
+/**
+ * Get overall statistics
+ */
+router.get('/overall', async (req: Request, res: Response) => {
+  try {
+    const db = await getDatabase();
+    
+    // Get total videos count
+    const videosResult = await db.get('SELECT COUNT(*) as total FROM videos');
+    const totalVideos = videosResult?.total || 0;
+    
+    // Get total users count
+    const usersResult = await db.get('SELECT COUNT(*) as total FROM users');
+    const totalUsers = usersResult?.total || 0;
+    
+    // Get total views (sum of all video views)
+    const viewsResult = await db.get('SELECT SUM(views) as total FROM videos');
+    const totalViews = viewsResult?.total || 0;
+    
+    // Get videos uploaded today
+    const todayStart = new Date();
+    todayStart.setHours(0, 0, 0, 0);
+    const todayResult = await db.get(
+      'SELECT COUNT(*) as total FROM videos WHERE created_at >= ?',
+      [todayStart.toISOString()]
+    );
+    const todayVideos = todayResult?.total || 0;
+    
+    res.json({
+      success: true,
+      data: {
+        totalVideos,
+        totalUsers,
+        totalViews,
+        todayVideos
+      }
+    });
+  } catch (error) {
+    console.error('获取统计数据失败:', error);
+    res.status(500).json({
+      success: false,
+      error: '获取统计数据失败'
+    });
+  }
+});
+
+/**
+ * Get video statistics by category
+ */
+router.get('/videos/category', async (req: Request, res: Response) => {
+  try {
+    const db = await getDatabase();
+    
+    const result = await db.all(`
+      SELECT 
+        category,
+        COUNT(*) as count,
+        SUM(views) as totalViews
+      FROM videos 
+      GROUP BY category
+      ORDER BY count DESC
+    `);
+    
+    res.json({
+      success: true,
+      data: result || []
+    });
+  } catch (error) {
+    console.error('获取分类统计失败:', error);
+    res.status(500).json({
+      success: false,
+      error: '获取分类统计失败'
+    });
+  }
+});
+
+/**
+ * Get recent activity stats
+ */
+router.get('/activity', async (req: Request, res: Response) => {
+  try {
+    const db = await getDatabase();
+    
+    // Get videos uploaded in last 7 days
+    const weekAgo = new Date();
+    weekAgo.setDate(weekAgo.getDate() - 7);
+    
+    const result = await db.all(`
+      SELECT 
+        DATE(created_at) as date,
+        COUNT(*) as count
+      FROM videos 
+      WHERE created_at >= ?
+      GROUP BY DATE(created_at)
+      ORDER BY date DESC
+    `, [weekAgo.toISOString()]);
+    
+    res.json({
+      success: true,
+      data: result || []
+    });
+  } catch (error) {
+    console.error('获取活动统计失败:', error);
+    res.status(500).json({
+      success: false,
+      error: '获取活动统计失败'
+    });
+  }
+});
+
+/**
+ * Get latest videos
+ */
+router.get('/latest', async (req: Request, res: Response) => {
+  try {
+    const db = await getDatabase();
+    const limit = parseInt(req.query.limit as string) || 10;
+    
+    const result = await db.all(`
+      SELECT 
+        id,
+        title,
+        description,
+        cover_url,
+        video_url,
+        duration,
+        views,
+        likes,
+        category,
+        status,
+        user_id,
+        created_at,
+        updated_at
+      FROM videos 
+      WHERE status = 'published'
+      ORDER BY created_at DESC
+      LIMIT ?
+    `, [limit]);
+    
+    res.json({
+      success: true,
+      data: result || []
+    });
+  } catch (error) {
+    console.error('获取最新视频失败:', error);
+    res.status(500).json({
+      success: false,
+      error: '获取最新视频失败'
+    });
+  }
+});
+
+/**
+ * Get recent users
+ */
+router.get('/recent-users', async (req: Request, res: Response) => {
+  try {
+    const db = await getDatabase();
+    const limit = parseInt(req.query.limit as string) || 10;
+    
+    const result = await db.all(`
+      SELECT 
+        id,
+        username,
+        email,
+        avatar,
+        role,
+        created_at,
+        updated_at
+      FROM users 
+      ORDER BY created_at DESC
+      LIMIT ?
+    `, [limit]);
+    
+    res.json({
+      success: true,
+      data: result || []
+    });
+  } catch (error) {
+    console.error('获取最近用户失败:', error);
+    res.status(500).json({
+      success: false,
+      error: '获取最近用户失败'
+    });
+  }
+});
+
+export default router;