const mysql = require('mysql2/promise');

// 資料庫連接配置
const dbConfig = {
  host: 'mysql.theaken.com',
  port: 33306,
  user: 'AI_Platform',
  password: 'Aa123456',
  database: 'db_AI_Platform',
  charset: 'utf8mb4'
};

async function testFavorites() {
  let connection;
  
  try {
    console.log('連接到資料庫...');
    connection = await mysql.createConnection(dbConfig);
    
    // 測試添加收藏
    const testUserId = 'test-user-123';
    const testAppId = 'test-app-456';
    
    console.log('測試添加收藏...');
    
    // 先清理可能存在的測試數據
    await connection.execute(
      'DELETE FROM user_favorites WHERE user_id = ? AND app_id = ?',
      [testUserId, testAppId]
    );
    
    // 第一次添加收藏
    const favoriteId1 = require('crypto').randomUUID();
    await connection.execute(`
      INSERT INTO user_favorites (id, user_id, app_id, created_at)
      VALUES (?, ?, ?, NOW())
    `, [favoriteId1, testUserId, testAppId]);
    
    console.log('✅ 第一次添加收藏成功');
    
    // 檢查是否已收藏
    const [checkResult] = await connection.execute(`
      SELECT COUNT(*) as count
      FROM user_favorites 
      WHERE user_id = ? AND app_id = ?
    `, [testUserId, testAppId]);
    
    console.log(`收藏記錄數量: ${checkResult[0].count}`);
    
    // 嘗試重複添加收藏（應該失敗）
    try {
      const favoriteId2 = require('crypto').randomUUID();
      await connection.execute(`
        INSERT INTO user_favorites (id, user_id, app_id, created_at)
        VALUES (?, ?, ?, NOW())
      `, [favoriteId2, testUserId, testAppId]);
      
      console.log('❌ 重複添加收藏應該失敗但成功了');
    } catch (error) {
      if (error.code === 'ER_DUP_ENTRY') {
        console.log('✅ 重複添加收藏正確地被阻止');
      } else {
        console.log('❌ 重複添加收藏失敗，但錯誤類型不正確:', error.message);
      }
    }
    
    // 清理測試數據
    await connection.execute(
      'DELETE FROM user_favorites WHERE user_id = ? AND app_id = ?',
      [testUserId, testAppId]
    );
    
    console.log('✅ 測試數據已清理');
    
  } catch (error) {
    console.error('測試過程中發生錯誤:', error);
  } finally {
    if (connection) {
      await connection.end();
      console.log('資料庫連接已關閉');
    }
  }
}

// 執行測試
testFavorites().catch(console.error);