const fs = require('fs');
const path = require('path');
const db = require('../src/config/database');

async function runMigrations() {
  try {
    console.log('💾 Starting database migration...');

    // Check if database is connected
    await db.query('SELECT 1');
    console.log('✅ Database connection successful');

    // Read and execute schema
    const schemaPath = path.join(__dirname, 'schema.sql');
    const schema = fs.readFileSync(schemaPath, 'utf8');
    
    await db.query(schema);
    console.log('✅ Database schema created successfully');

    // Insert default admin user
    const bcrypt = require('bcryptjs');
    const hashedPassword = await bcrypt.hash('admin123', 10);
    
    try {
      await db.query(`
        INSERT INTO admins (username, password, name, email, role)
        VALUES ($1, $2, $3, $4, $5)
        ON CONFLICT (username) DO NOTHING
      `, ['admin', hashedPassword, 'Administrator', 'admin@example.com', 'admin']);
      console.log('✅ Default admin user created');
    } catch (error) {
      console.log('ℹ️ Admin user already exists');
    }

    // Insert default site settings
    const defaultSettings = [
      ['site_name', 'Korea Tourism Agency', 'text', 'Website name'],
      ['site_description', 'Discover Korea\'s hidden gems with our guided tours', 'text', 'Site description'],
      ['contact_email', 'info@koreatourism.com', 'text', 'Contact email'],
      ['contact_phone', '+82-2-1234-5678', 'text', 'Contact phone'],
      ['contact_address', 'Seoul, South Korea', 'text', 'Contact address'],
      ['facebook_url', '', 'text', 'Facebook page URL'],
      ['instagram_url', '', 'text', 'Instagram profile URL'],
      ['twitter_url', '', 'text', 'Twitter profile URL'],
      ['booking_enabled', 'true', 'boolean', 'Enable online booking'],
      ['maintenance_mode', 'false', 'boolean', 'Maintenance mode']
    ];

    for (const [key, value, type, description] of defaultSettings) {
      try {
        await db.query(`
          INSERT INTO site_settings (setting_key, setting_value, setting_type, description)
          VALUES ($1, $2, $3, $4)
          ON CONFLICT (setting_key) DO NOTHING
        `, [key, value, type, description]);
      } catch (error) {
        console.log(`ℹ️ Setting ${key} already exists`);
      }
    }
    console.log('✅ Default site settings inserted');

    console.log('✨ Migration completed successfully!');
    process.exit(0);
    
  } catch (error) {
    console.error('❌ Migration failed:', error);
    process.exit(1);
  }
}

if (require.main === module) {
  runMigrations();
}

module.exports = { runMigrations };