<?php
/**
 * InputDeviceServices.API.php
 *
 * @package default
 */


$inputserver_sock = null;
$inputserver_ref = null;
$inputclients = null;
$inputserver_sock = null;
$inputserver_conn = null;
$stream = null;
class InputDeviceServices {


	/**
	 *
	 * @return unknown
	 */
	function loadInst() {
		static $inst = null;

		if ($inst === null) {
			$inst = new self;
		}
		return $inst;
	}


	/**
	 *
	 * @return unknown
	 */
	function module_loaded() {
		self::API_Register();
		return true;
	}


	/**
	 *
	 */
	function API_Register() {
		apiql::register("!OPEN/!INPUT/!SERVER[json]", "InputDeviceServices::InputServer");
		apiql::register("!CLOSE/!INPUT/!SERVER", "InputDeviceServices::CloseInputServer");
		apiql::register("!CONNECT/!INPUT/!DEVICES[json]", "InputDeviceServices::Connect");
		apiql::register("!DISCONNECT/!INPUT/!DEVICES", "InputDeviceServices::Disconnect");
	}


	/**
	 *
	 * @param unknown $sql
	 * @return unknown
	 */
	function CloseInputServer($sql) {
		global $inputserver_ref;
		global $inputserver_sock;
		$inputserver_sock->shutdown();
		$inputserver_ref->terminate();
		return true;
	}


	function InputServer($sql) {
		//echo(var_dump($sql));
		global $loop;
		global $clients;
		global $inputserver_ref;
		global $inputserver_sock;
		global $inputclients;
		$keyboard = $sql['SERVER']['keyboard'];
		$mouse = $sql['SERVER']['mouse'];
		$inputserver_ref = new React\ChildProcess\Process('exec /opt/uinput-mapper/input-read '.$keyboard.' -G '.$mouse.' -D -C');
		$inputserver_ref->on('exit', function($exitCode, $termSignal) use ($clients) {
				$ResponseArray = array("response_type"=>"success",
					"response_msg"=>"Event server has stopped.",
					"event_server_code"=>"EVT_201",
					"event_server_status"=>"stopped");
				foreach ($clients as $client) {
					$client->write(json_encode($ResponseArray)."\r\n");
				}
				return json_encode($ResponseArray);
			});
		
		$inputserver_sock = new React\Socket\Server($loop);
		$inputclients = new SplObjectStorage();
		$i = 0;
		$inputserver_sock->on('connection', function($connection) use ($inputclients, &$i) {
				global $inputserver_ref;
				global $loop;
			
				LogEcho("Connection to Event Server.", "INPUTS");
				$connection->id = ++$i;
				$connection->on('end',function() use ($inputserver_ref) {
					$inputserver_ref->terminate();
				});
				$inputclients->attach($connection);
				
				if($inputserver_ref->isRunning() == false)
				{$inputserver_ref->start($loop);}
						
				$inputserver_ref->stdout->on('data', function($output) use ($inputclients, $connection, &$i) {
					global $inputclients;
					foreach ($inputclients as $client) {
						if ($client->id == $connection->id) {
							$client->write($output);
						} else { continue; }
					}
				});
				$inputserver_ref->stderr->on('data', function($output) {
					if($output != "") LogEcho($output,"INPUTS");
				});
			});
		$inputserver_sock->listen("5055", "0.0.0.0");
		LogEcho("Event server started on port 5055", "INPUTS");

		//$loop->addTimer(0.001, function($timer) use ($inputserver_ref) {

		//});
		
				$ResponseArray = array("response_type"=>"success",
			"response_msg"=>"Event server started on port 5055",
			"event_server_code"=>"EVT_200",
			"event_server_port"=>5055,
			"event_server_status"=>"started");
		return json_encode($ResponseArray);
	}


	function Connect($sql) {
		$IP = $sql['DEVICES']['host'];
		$PORT = $sql['DEVICES']['port'];
		global $loop;
		global $input_client_process;
		global $input_client;
		global $stream;
		//$client = new steam_socket_client('tcp://'.$IP.":".$PORT);
		//$client_connection = new React\Stream\Steam($client, $loop);
		$input_client_process = new React\ChildProcess\Process('/opt/uinput-mapper/input-create -C');
		$input_client_process->start($loop);
		$input_client_process->stderr->on('data', function ($output) {
			if($output != "") LogEcho($output,"INPUTC");
		});
		
		$dnsResolverFactory = new React\Dns\Resolver\Factory();
		$dns = $dnsResolverFactory->createCached($IP, $loop);
		
		$input_client = new React\SocketClient\Connector($loop, $dns);
		$input_client->create($IP, $PORT)->then(function (React\Stream\Stream $stream) use ($IP, $PORT) {
				LogEcho("Connected to event server on: ".$IP. ":". $PORT,"INPUTC");
					global $stream;
					$stream = $stream;
					$stream->on('data', function($data) {
						global $input_client_process;
						#if(defined("DEBUG")) LogEcho($data, "INPUTC");
						$input_client_process->stdin->write($data);
					});
			});
		
		#$netcat_process = new React\ChildProcess\Process('exec nc '.$IP.' '.$PORT);
		#$netcat_process->start($loop);
		#$netcat_process->stdout->on('data', function($output) {
	#		$input_client_process->stdin->write($output);
	#	});
		
		//$connection->on('data', function($output) {
		//    $client_process->stdin->write($output);
		//});
		$ResponseArray = array("response_type"=>"success",
			"response_msg"=>"Successfully connected to Event Server socket.",
			"event_server_code"=>"EVT_200C");

		return json_encode($ResponseArray);

	}


	function Disconnect($sql) {
		global $input_client_process;
		global $input_client;
		global $stream;

		$input_client_process->terminate();
		$stream->end();
		//$input_client->end();
		$ResponseArray = array("response_type"=>"success",
			"response_msg"=>"Successfully disconnected from Event Server socket.",
			"event_server_code"=>"EVT_200D");

		return json_encode($ResponseArray);
	}


}