<?php

function storeDB($db, $filepath)
{
	$data = serialize($db);
	$fp = fopen($filePath, "w");
    fwrite($fp, $data);
    fclose($fp);
}

function mkDevicesDB($topic, $json, $group=false)
{
	global $devices, $listProperties, $listPropertiesKeys, $indexDevices, $dbInit, $logFh, $hooks;
	if (!isset($devices[$topic]))
	{
		$devices[$topic]= array();
	}
	foreach ($json as $jsonDevice)
	{
		//print_r($device);
		$fn = $jsonDevice->friendly_name;
		$fnTree = explode("/", $fn);
		$device = & $devices[$topic];
		foreach($fnTree as $fnPart)
		{
			if (!isset($device[$fnPart]))
			{
				$device[$fnPart] = array();
			}
			$device = & $device[$fnPart];
		}
		if (!isset($device["device"]))
		{
			$device["device"] = new device;
		}
		$device["device"]->topic = $topic;
		//$device["device"]->device = $jsonDevice;
		$device["device"]->friendlyName = $jsonDevice->friendly_name;
		if ($group)
		{
			//print_r($device);
			$device["device"]->groupID = $jsonDevice->id;
			$indexDevices[$device["device"]->groupID] = $jsonDevice->friendly_name;
		}else
		{
			addDevice($device, $fn, $jsonDevice);
		}
	}
	$dbInit += 1;
	fwrite($logFh, "################################START##################################################");
	fwrite($logFh, print_r($devices, true));
	fwrite($logFh, "################################END##################################################");

	echo "Devices DB made" . EOL;
	//print_r($devices);
}

function addDevice(& $device, $fn, $jsonDevice )
{
	global $listProperties, $listPropertiesKeys, $hooks, $indexDevices;
	$device["device"]->type = $jsonDevice->type;
	$device["device"]->ieeeAddress = $jsonDevice->ieee_address;
	if ( !empty($jsonDevice->power_source ) )
	{
		$device["device"]->powerSource = $jsonDevice->power_source;
	}
	if ($jsonDevice->definition != null)
	{
		$device["device"]->description = $jsonDevice->definition->description;
		searchPropertyKey($fn, $device["device"], $jsonDevice->definition->exposes, $listPropertiesKeys);
	}
	searchPropertyValue($fn, $device["device"], $jsonDevice, $listProperties);

	// adding callback function for availability
	//print_r($hooks);
	//$device["device"]->availability["functions"][] = $hooks["availability"]->getHook();

	//indexing device
	$indexDevices[$device["device"]->ieeeAddress] = & $device["device"];

	//print_r($device);
}

function searchPropertyKey($fn, &$device, $object, $listPropertiesKeys)
{
	foreach($listPropertiesKeys as $property)
	{
		foreach($object as $key => $value)
		{
			if (gettype($value) == "object" or gettype($value) == "array")
			{
				searchPropertyKey($fn, $device, $value, $listPropertiesKeys);
			}
			if ( isset($value->property))
			{
				$string = $value->property;
				//echo "property ===> " . $value->property . EOL;
				$device->{$string}["value"] = null;
				$device->$string["functions"] = array();
			}
		}
		//print_r($device);
	}
}

function searchPropertyValue($fn, &$device, $object, $listProperties)
{
	$objectArray = (array)$object;
	foreach($listProperties as $key => $value)
	{
		if (in_array($value, $objectArray))
		{
			//echo "$value trouvé =>";
			$device->$key = $value;
			//echo $device->$key . EOL;
		}
	}
}

function changeDevice($topic, $fn, &$device, $payloadArray)
{
	//$fnTree = explode("/", $fn);
	//print_r($payloadArray);
	if (!empty($payloadArray))
	{
		iterateDevice($topic, $fn, $device, $payloadArray);
	}else
	{
		logger(ERROR, _("payloadArray is empty!"));
	}

}

function iterateDevice($topic, $fn, &$device, $payloadArray)
{
	global $changed;
	//print_r($payloadArray);
	//echo "device =>";print_r($device);echo EOL;
	foreach($payloadArray as $key => $value)
	{
		$oldValue = 0;
		//echo "key =>"; print_r($key); echo EOL;
		//echo "value =>"; print_r($value); echo EOL;

		//echo "type : " . gettype($value) .EOL;
		if (gettype($value) == "object")
		{
			//echo " is Object" . EOL;
			if (!property_exists($device, $key))
			{
				$device->{$key} = null;
			}
			//echo "iterating" . EOL;
			iterateDevice($topic, $fn, $device, $value);
		}elseif (gettype($value) == "array")
		{
			//echo "is array" . EOL;

			iterateDevice($topic, $fn, $device, $value);
		}else
		{
			if (empty($device->$key) or $value != null)
			{
				if (isset($device->$key))
				{
					$oldValue = $device->$key;

				}else
				{
					$device->{$key}["value"] = null;
					$device->$key["functions"] = array();
				}
				if ($oldValue != $value)
				{
					$device->$key["value"] = $value;
					$changed[$fn]["key"] = $key;
					$changed[$fn]["value"] = $value;

					//echo "oldvalue => " . print_r($oldValue, true) . EOL;
					/*if (empty($oldValue))
					{
						echo "Initializing " . $key;
					}else
					{
						echo "changed " . $key . " value " . $oldValue;;
					}
					echo  " to " . $value . EOL;*/
				}
				//print_r($device->functions);		print_r($value);
				//print_r($device);
				if (!empty($device->$key["functions"]))
				{
					echo "executing notifications functions " . EOL;
					foreach($device->$key["functions"] as $function)
					{
						//print_r($function);
						$function($device, $key, $value);
					}
				}
			}
		}
	}
}

function getDevicesValues()
{

}

?>