const fs = require('fs').promises;
const path = require('path');

async function createMigration() {
  try {
    const name = process.argv[2];
    if (!name) {
      console.error('Please provide a migration name');
      console.log('Usage: node createMigration.js <migration_name>');
      process.exit(1);
    }

    const timestamp = new Date().toISOString().replace(/[-:]/g, '').split('.')[0];
    const fileName = `${timestamp}_${name}.js`;
    const filePath = path.join(__dirname, 'migrations', fileName);

    const template = `const db = require('../../config/database');

module.exports = {
  async up() {
    // Add your migration SQL here
    // Example:
    // await db.query(\`
    //   CREATE TABLE IF NOT EXISTS table_name (
    //     id INT AUTO_INCREMENT PRIMARY KEY,
    //     name VARCHAR(255) NOT NULL,
    //     created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
    //   )
    // \`);
  },

  async down() {
    // Add your rollback SQL here
    // Example:
    // await db.query('DROP TABLE IF EXISTS table_name');
  }
};`;

    await fs.writeFile(filePath, template);
    console.log(`Created migration file: ${fileName}`);
  } catch (error) {
    console.error('Error creating migration:', error);
    process.exit(1);
  }
}

createMigration();