// backend/config/mysqlPool.js
import mysql from 'mysql2/promise';

const pool = mysql.createPool({
  host               : process.env.DB_HOST      || '127.0.0.1',
  port               : process.env.DB_PORT      || 3306,
  user               : process.env.DB_USER      || 'root',
  password           : process.env.DB_PASSWORD  || '',
  database           : process.env.DB_NAME      || 'user_profile_db',
  waitForConnections : true,
  connectionLimit    : 10,
  ...(process.env.DB_SOCKET ? { socketPath: process.env.DB_SOCKET } : {})
});

export default pool;