<?php

//Constants
define( "EOL", "\n");
define("Z2M", "zigbee2mqtt");

// log levels
/*define( "DEBUG", 0);
define( "INFO", 1);
define( "WARNING", 3);
define( "ERROR", 4);*/
$logLevel = LOG_DEBUG;


declare(ticks = 1);

$listProperties = array("powerSource" => "batterie");
$listPropertiesKeys = array("property");

class Message
{
	public $id;
	public $state = false;
	public $msg;
}

class topic {
	public $mid;
	public $status;
	public $info;
	public $devices;
	public $groups;
	public $extensions;
	public $config;
}

class device
{
	public $method;    //auto or manual
	public $topic;
	public $device;
	public $ieeeAddress;
	public $groupID;
	public $friendlyName;
	public $powerSource;
	public $description;
	public $functions;
	public $payload;
	public $availibility;

	public function set($event)
	{
		publish($this, $this->payload, "set", $event);
	}

	public function get()
	{
		publish($this, $this->payload, "get", $event);
	}
}

class ranges
{
	public $start;			//datetime
	public $end;			//datetime
}

class event
{
	public $ieeeAddress;
	public $topic;
	public $param;
	public $value;
	public $device;
	public $published;
	public $dateTimeEvent;			// datetime : next occurence for recurrent event
	public $startDatetime;
	public $stopDatetime;
	public $recurrenceInterval;		// interval : for recurrent event
	public $exceptionInterval;		// array of object ranges
}

class interval
{
	public $startDate;
	public $endDate;
}

class notificationMethod
{
	public $url;
	public $msg;

	function __construct($url)
	{
		$this->url = $url;
	}

	public function send($text=null)
	{
		if (empty($text)) $text= $this->msg;
		if (!empty($msg))
		{
			$opts = array(
				'http'=>array(
					'method'=>"GET",
					'header'=>"Accept-language: fr\r\n"
				)
			);
			$context = stream_context_create($opts);

			/* Envoi une requête HTTP vers $url
			avec les en-têtes additionnels ci-dessus */
			$fp = fopen($url . "/" . $msg, 'r', false, $context);
			$response = stream_get_contents($fp, -1, 0);
			fclose($fp);
		}else
		{
			// TODO log_error("notificationMethod : $msg is null");
		}

	}
}

//global variables
$topics = array();				// list of topics
$mids = array();				// list of message IDs
$devices = array();				// array of device objetcs
$indexDevices = array();		// index devices by ieee_address
$hooks = array();				// array of hooks
$notificationMethods = array();	// array of notification methods objects
$events = array();				// list of event objects
$changed = array();				// list of changed devices
$dbInit = false;				// flag to indicate that desvices db is initialized
$connected = false;				// connected to MQTT server
$nSubscribed = 0;				// Number of topics subsribed
$included = false;				// flag indicate scripts are loaded
$logFh = null;					// filehandle of log file

// topics definition
$topics["zigbee2mqtt"] = new topic;

// gettext
bindtextdomain("moha", "./locale");
textdomain("moha");

if (!init()) exit(1);

require "mqtt_functions.php";
require "utils.php";
require "events.php";
require "db_functions.php";

$client = new Mosquitto\Client();
$client->onConnect('connectResponse');
$client->onDisconnect('disconnectResponse');
$client->onSubscribe('subscribeResponse');
$client->onUnsubscribe('unsubscribeResponse');

$client->onMessage('message');
$client->onLog('logger');
$client->onPublish('publishResponse');


//signal handling
pcntl_signal(SIGTERM, 'signalHandler');// Termination ('kill' was called)
pcntl_signal(SIGHUP, 'signalHandler'); // Terminal log-out
pcntl_signal(SIGINT, 'signalHandler');

// Program start


$client->connect("192.168.1.253", 1883, 5);
foreach($topics as $name => $topic)
{
	//echo $name;
	$topic->mid = $client->subscribe($name . "/#", 2);
	$mids[$topic->mid] = $name;
	$topic->status = false;
}

while (true)
{
	$client->loop();
	if ($dbInit == 2 and ! $included)
	{
		$hooksList = array();
		loadHooks("./hooks", $hooksList);
		//print_r($hooksList);
		if (!empty($hooksList))
		{
			foreach ($hooksList as $hook)
			{
				echo "Including $hook" . EOL;
				include $hook;
			}
		}
	}elseif($dbInit == 2 and $included)
	{
		checkEvents();
	}
}

endMoha();

function init()
{
	global $logFh, $client;
	date_default_timezone_set('Europe/Paris');

	if (! $logFh = fopen("moha.log", "w") )
	{
		echo _("error opening log file");
		return false;
	}
	return true;
}

function loadHooks($dir, &$hookList)
{
	global $included;
	$files = scandir($dir);
	//print_r($files);
	foreach ($files as $file)
	{
		//echo "=====> $file" . EOL;

		if ($file != "." and $file != "..")
		{
			//echo "not . or .." . EOL;echo strpos($file, ".php", -4) . EOL;
			if (is_dir($dir . "/" . $file))
			{
				//echo "directory : " . $dir . '/' . $file . EOL;
				loadHooks($dir . '/' . $file, $hookList);
			}elseif (strpos($file, ".php", -4) !== false)
			{
				//echo "file : " . $dir . "/" . $file . EOL;
				$hookList[] = $dir . "/" . $file;
			}
		}
	}
	//print_r($hookList);
	$included = true;
}


function endMoha()
{
	global $topics, $nSubscribed ,$client, $logFh, $connected;
	$x = 0;
	/*foreach($topics as $topic => $object)
	{
		if ($object->status)
		{*/
			$mid = $client->unsubscribe("#");
			/*$mids[$mid] = $topic;
		}
	}*/

	while ($connected)
	{
		//echo $nSubscribed;0x00124b0022ebac5c
		if ( $x++ > 60)
		{
			$client->disconnect();
			fclose($logFh);
			exit (1);
		}
		$client->loop();
	}
	fclose($logFh);
	exit(0);
}


?>