import mysql from 'mysql2/promise';
import dotenv from 'dotenv';

dotenv.config();

const { DB_HOST, DB_USER, DB_PASS, DB_NAME, DB_PORT } = process.env;

async function dropLegacyTables() {
  const connection = await mysql.createConnection({
    host: DB_HOST,
    user: DB_USER,
    password: DB_PASS,
    database: DB_NAME,
    port: parseInt(DB_PORT || '3306')
  });

  console.log('🧹 Starting cleanup of obsolete legacy backup tables...');

  const tablesToDrop = [
    'asset_pc', 'asset_pc_backup',
    'asset_server', 'asset_server_backup',
    'asset_storage', 'asset_storage_backup',
    'asset_remote_backup', // IMPORTANT: DO NOT drop asset_remote!
    'asset_equipment', 'asset_equipment_backup',
    'asset_office_supplies', 'asset_office_supplies_backup',
    'asset_survey', 'asset_survey_backup',
    'asset_vip', 'asset_vip_backup',
    'asset_pc_parts'
  ];

  for (const table of tablesToDrop) {
    try {
      await connection.query(`DROP TABLE IF EXISTS ${table}`);
      console.log(`✅ Dropped table: ${table}`);
    } catch (err) {
      console.warn(`⚠️ Failed to drop table ${table}: ${err.message}`);
    }
  }

  console.log('🎉 Cleanup complete. Database is now lean and mean.');
  await connection.end();
}

dropLegacyTables().catch(console.error);