var mysql = require('mysql');
require('dotenv').config()

var connection = mysql.createConnection({
  host: process.env.DB_HOST,
  user: process.env.DB_USER,
  password: process.env.DB_PASSWORD,
  port: process.env.DB_PORT,
  database: 'travopti'
});

// var pool = mysql.createPool({
//   connectionLimit: 10,
//   host: process.env.DB_HOST,
//   user: process.env.DB_USER,
//   password: process.env.DB_PASSWORD,
//   port: process.env.DB_PORT,
//   database: 'travopti'
// });

// let travoptidb = {}
// travoptidb.all = () => {
//   return new Promise((resolve, reject) => {
//     pool.query(`SELECT * FROM regions`, (err, results) => {
//       if (err) {
//         return reject(err)
//       }
//       return resolve(results)
//     })
//   })
// }

connection.connect((err) => {
  if (err) throw err;
  console.log('Database connected!')
});


exports.getRegions = () => {
  let sql = `SELECT * FROM regions`;
  console.log(connection.state)
  if (connection.state === 'disconnected') {
    setTimeout(() => console.log('waiting...'), 1000);
  }
  console.log('executed')
  let res = {}
  connection.query(sql, (error, results, fields) => {
    if (error) {
      return console.error(error.message);
    }
    console.log('innercallback(1)')
    res = results[0]
  });
  console.log('outsidecallback(2)')
  return res;
}

exports.getBYTdata = () => {
  connection.query(`SELECT * FROM regions_byt`, (error, results, fields) => {
    if (error) {
      return console.error(error.message);
    }
    console.log(results[0])
    nres = results.map((obj) => {
      return obj.region
    })
    //console.log(nres);
  });
}

exports.end = () => connection.end();

// module.exports = connection;