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

async function clearDatabase() {
  const connection = await mysql.createConnection({
    host: 'mysql.theaken.com',
    port: 33306,
    user: 'AI_Platform',
    password: 'Aa123456',
    database: 'db_AI_Platform'
  });

  console.log('🗑️ 清空資料庫...');
  
  // 清空所有表（按依賴順序）
  const tables = [
    'app_judge_scores',
    'competition_apps', 
    'competition_judges',
    'apps',
    'judges',
    'competitions',
    'users'
  ];

  for (const table of tables) {
    await connection.execute(`DELETE FROM ${table}`);
    console.log(`✅ 清空了 ${table} 表`);
  }

  await connection.end();
  console.log('🎉 資料庫清空完成！');
}

clearDatabase().catch(console.error);