const { MetonaSqlark } = require('./dist/metona-sqlark.cjs.js');

(async () => {
  const db = new MetonaSqlark({ name: 'test', mode: 'memory' });
  await db.init();

  await db.defineTable('users', {
    id: { type: 'string', primaryKey: true },
    name: { type: 'string', required: true },
    email: { type: 'string' },
    age: { type: 'number', default: 0 },
  });

  // Step 1: ALTER TABLE ADD COLUMN
  await db.query('ALTER TABLE users ADD COLUMN phone STRING');

  const schema = await db.getEngine().getTableSchema('users');
  console.log('Schema columns:', Object.keys(schema.columns));

  // Step 2: INSERT
  await db.query("INSERT INTO users (id, name, age, phone) VALUES ('6', 'Frank', 33, '123-4567')");

  // Step 3: SELECT (first)
  const result1 = await db.query("SELECT * FROM users WHERE id = '6'");
  console.log('First query result:', JSON.stringify(result1));
  console.log('First query fields:', Object.keys(result1[0]));

  // Step 4: ALTER TABLE DROP COLUMN
  await db.query('ALTER TABLE users DROP COLUMN phone');

  // Step 5: SELECT (second)
  const result2 = await db.query("SELECT * FROM users WHERE id = '6'");
  console.log('Second query result:', JSON.stringify(result2));
  console.log('Second query fields:', Object.keys(result2[0]));

  await db.close();
})();