<?php


class Query {
	private $socket;
	private $address;
	private $port;
	private $engine;
	private $timeout;
	public  $status;
	private $protocol;

	public function __construct($address, $port, $engine = 'minecraft', $timeout = 2) {

		/* Instantiating the variables */
		$this->address 	= $address;
		$this->port 	= $port;
		$this->engine 	= $engine;
		$this->timeout 	= $timeout;

		/* Load the engine if existing and initiate the class throught the protocol variable */
		if($this->engine !== false) {
			$this->loadEngine($this->engine);

			$this->protocol = new $this->engine();
		} 
		/* Else create an empty class and give the connectionType a default value */
		else {
			$this->protocol = new stdClass();
			$this->protocol->connectionType = "udp://";
		}

		/* Try and connect to the server */
		$this->connect();

	}


	public function loadEngine($engine) {
		$path = "engines/{$engine}.php";

		if(file_exists($path)) {
			require_once $path;
		} else {
			throw new Exception("The selected engine ( " . $engine . " ) doesn't exist !");
		}

	}

	public function connect() {

		/* Try and connect to the server */
		$this->socket = @fsockopen($this->protocol->connectionType . $this->address, $this->port, $errno, $errstr, $this->timeout);

		/* Set the timeout */
		@stream_set_timeout($this->socket, $this->timeout);

		/* Establish the server status */
		$this->status = (!$this->socket) ? false : true;
	
	}

	public function disconnect() {

		/* Disconnect from the server */
		fclose($this->socket);
		
	}


	public function get() {

		require "McFavicon.php";
		$favicon = new McFavicon($this->address, $this->port, 2);
		$favicon = $favicon->getFavicon();

		if(!$favicon) $favicon = false;

		/* If server is offline, return false */
		if(!$this->status) return false;

		/* Initiate the protocol */
		$this->protocol->initiate($this->socket, $this->address, $this->port);

		/* Store the received data into a variable */
		$info = $this->protocol->get_data();
		$info['general']['favicon'] = $favicon;
		if(isset($info['general']['maxplayers']) && $info['general']['maxplayers']) $info['general']['online'] = 1; else $info['general']['online'] = 0;


		/* If we got no response then return_false() */
		return $info;

	}


	public function return_false() {

		return array(
				"general" => array(
					'numplayers'	=> 'false',
					'maxplayers'	=> 'false',
					'motd'			=> 'false',
					'version'		=> 'false',
					'favcion'		=> 'false',
					'online'		=> 'false'
				),

				'players' => 'false'
			);

	}

}