<?php

class DatabaseSingleton
{

    private $_connection;
    private static $_instance;
    const HOST = "localhost";
    const DBNAME = "gsm";
    const USER = "root";
    const PASS = "root";

    /*
    Get an instance of the Database
    @return Instance
    */
    public static function getInstance()
    {
        if (!self::$_instance) {
            self::$_instance = new self();
        }

        return self::$_instance;
    }

    // Constructor
    private function __construct()
    {
        // $settingsFilePath = __DIR__ . '/.env';
        // $settings = parse_ini_file($settingsFilePath);

        try {
            // $dbh = new \PDO(
            //     "mysql:host={$settings['host']};dbname={$settings['dbName']}", $settings['user'],
            //     $settings['password']
            // );
            $dbh = new \PDO(
                "mysql:host=" . self::HOST . ";dbname=" . self::DBNAME, self::USER, self::PASS);
            $dbh->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);

            $this->_connection = $dbh;

        } catch (PDOException $e) {
            die($e->getMessage());
        }
    }

    public function getConnection()
    {
        return $this->_connection;
    }

    // Magic method clone is empty to prevent duplication of connection
    private function __clone()
    {
    }

}