const { sequelize, setupRelationships, syncDatabase } = require('../models');

/**
 * Script to sync all Sequelize models to database
 * This will create all tables with proper foreign keys and indexes
 */
async function syncAllTables() {
  try {
    console.log('🚀 Starting database synchronization...\n');
    
    // Setup model relationships first
    setupRelationships();
    console.log('✅ Model relationships configured\n');
    
    // Test database connection
    await sequelize.authenticate();
    console.log('✅ Database connection established\n');
    
    // Show current tables
    const [tablesBefore] = await sequelize.query(`
      SELECT TABLE_NAME 
      FROM information_schema.TABLES 
      WHERE TABLE_SCHEMA = DATABASE()
      ORDER BY TABLE_NAME;
    `);
    console.log('📊 Tables before sync:', tablesBefore.length);
    console.log(tablesBefore.map(t => t.TABLE_NAME).join(', '), '\n');
    
    // Sync database (force: false = don't drop existing tables)
    // Use { alter: true } to modify existing tables without dropping data
    // Use { force: true } to drop and recreate all tables (CAREFUL: data loss!)
    console.log('⚙️  Syncing database with alter mode...');
    await syncDatabase({ alter: true });
    
    // Show tables after sync
    const [tablesAfter] = await sequelize.query(`
      SELECT TABLE_NAME 
      FROM information_schema.TABLES 
      WHERE TABLE_SCHEMA = DATABASE()
      ORDER BY TABLE_NAME;
    `);
    console.log('\n📊 Tables after sync:', tablesAfter.length);
    console.log(tablesAfter.map(t => t.TABLE_NAME).join(', '), '\n');
    
    // Show newly created tables
    const newTables = tablesAfter.filter(
      t => !tablesBefore.some(b => b.TABLE_NAME === t.TABLE_NAME)
    );
    if (newTables.length > 0) {
      console.log('✨ Newly created tables:', newTables.length);
      console.log(newTables.map(t => t.TABLE_NAME).join(', '), '\n');
    }
    
    console.log('╔════════════════════════════════════════════════════════╗');
    console.log('║         ✅ DATABASE SYNC COMPLETED SUCCESSFULLY        ║');
    console.log('╚════════════════════════════════════════════════════════╝');
    
    process.exit(0);
  } catch (error) {
    console.error('\n❌ Database sync failed:');
    console.error(error);
    process.exit(1);
  }
}

// Run sync
syncAllTables();