const { Pool } = require('pg');

// Test database connection
async function testConnection() {
  const poolConfig = process.env.DATABASE_URL 
    ? { connectionString: process.env.DATABASE_URL }
    : {
        host: process.env.DB_HOST,
        port: process.env.DB_PORT,
        database: process.env.DB_NAME,
        user: process.env.DB_USER,
        password: process.env.DB_PASSWORD,
      };

  console.log('Database config:', {
    hasUrl: !!process.env.DATABASE_URL,
    host: process.env.DB_HOST,
    port: process.env.DB_PORT,
    database: process.env.DB_NAME,
    user: process.env.DB_USER,
    hasPassword: !!process.env.DB_PASSWORD
  });

  const pool = new Pool({
    ...poolConfig,
    max: 1,
    idleTimeoutMillis: 5000,
    connectionTimeoutMillis: 10000,
  });

  try {
    console.log('Testing database connection...');
    const client = await pool.connect();
    console.log('✅ Database connection successful!');
    
    const result = await client.query('SELECT NOW() as current_time');
    console.log('✅ Query successful:', result.rows[0]);
    
    client.release();
    await pool.end();
    console.log('✅ Connection pool closed successfully');
  } catch (error) {
    console.error('❌ Database connection failed:', error.message);
    console.error('Error details:', error);
    process.exit(1);
  }
}

testConnection();