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

(async () => {
  const conn = await mysql.createConnection({
    host: 'localhost',
    port: 33060,
    user: 'root',
    password: 'root',
    database: 'iot_platform'
  });

  // 列出所有表
  const [tables] = await conn.query('SHOW TABLES');
  console.log('=== 当前数据库表 ===');
  tables.forEach(t => console.log(' ', Object.values(t)[0]));

  // 检查 alarm 相关表
  const alarmTables = ['alarm_record', 'alarm_rule', 'device_data_record'];
  console.log('\n=== 检查关键表是否存在 ===');
  for (const t of alarmTables) {
    const [r] = await conn.query(`SELECT COUNT(*) as cnt FROM information_schema.TABLES WHERE TABLE_SCHEMA='iot_platform' AND TABLE_NAME='${t}'`);
    console.log(` ${t}: ${r[0].cnt > 0 ? '✅ 存在' : '❌ 缺失'}`);
  }

  // 如果 alarm_record 表不存在，查看建表SQL
  console.log('\n=== 尝试查找建表SQL ===');
  try {
    const fs = require('fs');
    const path = require('path');
    
    // 搜索后端项目中的 SQL 文件
    const searchDirs = [
      'F:/work/iotsaas/backend/iot-alarm/src/main/resources/',
      'F:/work/iotsaas/backend/iot-device/src/main/resources/',
      'F:/work/iotsaas/docker/'
    ];
    
    for (const dir of searchDirs) {
      if (fs.existsSync(dir)) {
        const files = fs.readdirSync(dir).filter(f => f.endsWith('.sql') || f.endsWith('.xml'));
        if (files.length > 0) {
          console.log(`\n${dir}:`);
          files.forEach(f => console.log(`  - ${f}`));
        }
      }
    }
  } catch(e) { console.log('搜索出错:', e.message); }

  await conn.end();
})().catch(e => console.error('错误:', e.message));