<?php
// mosquitto-php related functions

logger(DEBUG,"Including mqtt_functions.php");

function messageReceived($message)
{
	global $topics, $logFh, $devices, $included;
	$topic = explode ("/", $message->topic);
	$callback = $topics[$topic[0]]->callback;
	//logger(DEBUG, "message => " . var_export($message, true), __FILE__ . ":" . __LINE__);
	$callback($topic, $message);
}

// payload is an array :
// $key is property and $value is value of the property

function publish($topic, $payloadArray, $commande="set") //, $eventKey)
{
	global $client, $mids, $logFh, $testMode;
	$string = $topic . "/" . $commande;
	if ($testMode === false)
	{
		if ($client !== null)
		{
			$mid = $client->publish($string, json_encode($payloadArray) , 2);
			if (isset($mids[$mid]))
			{
				//echo "unsetting mids" .EOL;
				unset ($mids[$mid]);
			}else
			{
				//echo "setting mids" .EOL;
				$mids[$mid] = true;
			}
			logger(LOG_INFO, $logFh, "Publishing " . $string . " with payload => " . json_encode($payloadArray), __FILE__ . ":" . __LINE__);
		}else
		{
			logger(ERROR, $logFh, "MQTT client is null not publishing " . $string . " with payload => " . json_encode($payloadArray), __FILE__ . ":" . __LINE__);
		}

	}else
	{
		logger(INFO, _("Test mode on: no publishing "), __FILE__ . ":" . __LINE__);
	}
}

function connectResponse($r, $message)
{
	global $connected;
	//echo sprintf(_("I got code %d and message : '%s'"), $r, $message) . EOL;
	switch ($r)
	{
		case 0:
			logger(INFO, _("Successfull connection"), __FILE__ . ":" . __LINE__);
			$connected = true;
			break;
		case 1:
			logger(ERROR, _("Connection refused : unacceptable protocol version"), __FILE__ . ":" . __LINE__);
			$connected = true;
			break;
		case 2:
			logger(ERROR, _("Connection refused : identifier rejected"), __FILE__ . ":" . __LINE__);
			$connected = true;
			break;
		case 3:
			logger(ERROR, _("Connection refused (broker unavailable )"), __FILE__ . ":" . __LINE__);
			$connected = true;
			break;
	}
}

function subscribeResponse($mid, $qosCount)
{
	global $topics, $mids, $nSubscribed;
	//print_r($mids);
	$key = $mids[$mid];
	logger(INFO, _("Subscribed to ") . $key, __FILE__ . ":" . __LINE__);
	$topics[$key]->status = true;
	$nSubscribed += 1;
}

function unsubscribeResponse($mid)
{
	global $client;			//$topics, $mids, $nSubscribed;
	//$key = $mids[$mid];
	logger(INFO, _("Unsubscribed", __FILE__ . ":" . __LINE__));		// from ") . $topics[$key]->name);
	//$topics[$key]->status = false;
	//$nSubscribed -= 1;
	$client->disconnect();
}

function disconnectResponse($r)
{
	global $connected;
	if ($r != 0)
	{
		$str = _('Badly ');
	}else
	{
		$str = _('Cleanly ');
	}
	logger(ALERT, $str . _("disconnected from server"));
	$connected = false;
}

function publishResponse($mid)
{
	global $mids, $events;
	logger(LOG_INFO, sprintf(_("Event with mid = %d published by MQTT broker"), $mid), __FILE__ . ":" . __LINE__);
	if (isset($mids[$mid]))
	{
		//echo "unsetting mids" . EOL;
		unset ($mids[$mid]);
		//print_r($mids);
	}else
	{
		//echo "setting mids" . EOL;
		$mids[$mid] = true;
	}
}
?>