const { Pool } = require('pg');
const logger = require('../utils/logger');

const pool = new Pool({
  host: process.env.DB_HOST || 'listmonk-db',
  port: process.env.DB_PORT || 5432,
  database: process.env.DB_NAME || 'freealberta_food',
  user: process.env.DB_USER || process.env.POSTGRES_USER,
  password: process.env.DB_PASSWORD || process.env.POSTGRES_PASSWORD,
  max: 20,
  idleTimeoutMillis: 30000,
  connectionTimeoutMillis: 2000,
});

pool.on('connect', () => {
  logger.info('Connected to PostgreSQL database');
});

pool.on('error', (err) => {
  logger.error('Unexpected PostgreSQL error', { error: err.message });
});

module.exports = {
  query: (text, params) => pool.query(text, params),
  getClient: () => pool.connect(),
  end: () => pool.end()
};