const mysql = require('mysql');
const config = require('../config');
class Mysql {

  constructor() {
    this.pool = mysql.createPool(config.MysqlConfig)
  }

  query (params) {
    return new Promise((resolve,reject) => {
      this.pool.query(params.sql, params.par ? params.par : [], function (error, results, fields) {
        if (error) {
          throw error;
          reject(error)
        } else {
          config.ApiStatusCode.success.data = results
          results.length == 0 ? resolve(config.ApiStatusCode.errors) : resolve(config.ApiStatusCode.success);
        }
      })
    })
  }
}

module.exports = new Mysql()