Die Klassen sind wie besprochen eingerichtet

3 files changed, 628 insertions, 22 deletions

diff --git a/modules-available/locationinfo/inc/HisInOneAPI.php b/modules-available/locationinfo/inc/HisInOneAPI.php
new file mode 100644
index 00000000..fa7bf32f
--- /dev/null
+++ b/modules-available/locationinfo/inc/HisInOneAPI.php
@@ -0,0 +1,276 @@
+<?php
+interface iTimetableRequest
+{
+    public function getJson($param);
+    public function getJsons($param);
+}
+
+class HisInOneSoapClient implements iTimetableRequest
+{
+    private $username;
+    private $password;
+    private $location;
+
+
+    //Constructs the HisInOneClient all parameters are strings
+    function __construct($location, $username, $password) {
+        $this->location = $location;
+        $this->password = $password;
+        $this->username = $username;
+    }
+
+    
+    //Contstructs the Soap Header $doc is a DOMDocument this returns a DOMElement
+    private function getHeader($doc){
+        $header = $doc->createElement( 'SOAP-ENV:Header');
+        $security = $doc->createElementNS('http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd','ns2:Security');
+        $mustunderstand = $doc->createAttribute('SOAP-ENV:mustUnderstand');
+        $mustunderstand->value = 1;
+        $security->appendChild($mustunderstand);
+        $header->appendChild($security);
+        $token = $doc->createElement('ns2:UsernameToken');
+        $security->appendChild($token);
+        $user = $doc->createElement('ns2:Username',  $this->username);
+        $token->appendChild($user);
+        $pass = $doc->createElement('ns2:Password', $this->password);
+        $type = $doc->createAttribute('Type');
+        $type ->value = 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText';
+        $pass ->appendChild($type);
+        $token->appendChild($pass);
+        return $header;
+    }
+    
+    //returns the IDs in an array for a given roomID
+    public function findUnit($roomID){
+        $termyear = date('Y');
+        $termtype = date('n');
+        if($termtype > 3 && termtype < 10){
+            $termtype = 2;
+        }
+        elseif ($termtype > 10) {
+        $termtype = 1;
+        $termyear = $termyear + 1;
+        }
+        else{
+            $termtype = 1;
+        }
+        $doc  = new DOMDocument('1.0', 'utf-8');
+        $doc->formatOutput = true;
+        $envelope = $doc->createElementNS('http://schemas.xmlsoap.org/soap/envelope/', 'SOAP-ENV:Envelope');
+        $doc->appendChild($envelope);
+        $envelope->setAttributeNS('http://www.w3.org/2000/xmlns/' ,'xmlns:ns1', 'http://www.his.de/ws/courseService');
+        
+        $header = $this->getHeader($doc);
+        $envelope->appendChild($header);
+        //Body of the request
+        $body = $doc->createElement('SOAP-ENV:Body');
+        $envelope->appendChild($body);
+        $findUnit= $doc->createElement('ns1:findUnit');
+        $body->appendChild($findUnit);
+        $unitDefaulttext = $doc->createElement('ns1:unitDefaulttext');
+        $findUnit->appendChild($unitDefaulttext);
+        $unitElementnr = $doc->createElement('ns1:unitElementnr');
+        $findUnit->appendChild($unitElementnr);
+        $editingStatusId = $doc->createElement('ns1:editingStatusId');
+        $findUnit->appendChild($editingStatusId);
+        $courseEventtypeId = $doc->createElement('ns1:courseEventtypeId');
+        $findUnit->appendChild($courseEventtypeId);
+        $courseTeachingLanguageId = $doc->createElement('ns1:courseTeachingLanguageId');
+        $findUnit->appendChild($courseTeachingLanguageId);
+        $planelementDefaulttext = $doc->createElement('ns1:planelementDefaulttext');
+        $findUnit->appendChild($planelementDefaulttext);
+        $parallelgroupId= $doc->createElement('ns1:parallelgroupId');
+        $findUnit->appendChild($parallelgroupId);
+        $termYearN = $doc->createElement('termYear',$termyear);
+        $findUnit->appendChild($termYearN);
+        $termTypeValueId = $doc->createElement('termTypeValueId',$termtype);
+        $findUnit->appendChild($termTypeValueId);
+        $individualDatesExecutionDate = $doc->createElement('ns1:individualDatesExecutionDate');
+        $findUnit->appendChild($individualDatesExecutionDate);
+        $individualDatesStarttime = $doc->createElement('ns1:individualDatesStarttime');
+        $findUnit->appendChild($individualDatesStarttime);
+        $individualDatesEndtime = $doc->createElement('ns1:individualDatesEndtime');
+        $findUnit->appendChild($individualDatesEndtime);
+        $roomIdN = $doc->createElement('ns1:roomId',$roomID);
+        $findUnit->appendChild($roomIdN);
+        
+        $soap_request = $doc->saveXML();
+        $respons1 = $this->__doRequest($soap_request, "findUnit");
+        $respons2 = $this->toArray($respons1);
+        $id = $respons2['soapenvBody']['hisfindUnitResponse']['hisunitIds']['hisid'];
+        return $id;
+    }
+    
+    //This function sends a Soaprequest with the eventID and returns an array which contains much
+    // informations, like start and enddates for events and their name.
+    public function readUnit($unit) {
+        $doc  = new DOMDocument('1.0', 'utf-8');
+        $doc->formatOutput = true;
+        $envelope = $doc->createElementNS('http://schemas.xmlsoap.org/soap/envelope/', 'SOAP-ENV:Envelope');
+        $doc->appendChild($envelope);
+        $envelope->setAttributeNS('http://www.w3.org/2000/xmlns/' ,'xmlns:ns1', 'http://www.his.de/ws/courseService');
+        
+        $header = $this->getHeader($doc);
+        $envelope->appendChild($header);
+        //body of the request
+        $body = $doc->createElement('SOAP-ENV:Body');
+        $envelope->appendChild($body);
+        $readUnit =$doc->createElement('ns1:readUnit');
+        $body->appendChild($readUnit);
+        $unitId = $doc->createElement('ns1:unitId',$unit);
+        $readUnit->appendChild($unitId);
+
+        $soap_request = $doc->saveXML();
+        $respons1 = $this->__doRequest($soap_request, "readUnit");
+        $respons2 = $this->toArray($respons1);
+        $respons3 = $respons2['soapenvBody']['hisreadUnitResponse'];
+        return $respons3;
+    }
+    //Makes a SOAP-Request as a normal POST
+    function __doRequest($request, $action){
+        $header = array(
+            "Content-type: text/xml;charset=\"utf-8\"",
+            "SOAPAction: \"".$action."\"",
+            "Content-length: ".strlen($request),
+            );
+
+        $soap_do = curl_init();
+
+        $options = array( 
+            CURLOPT_RETURNTRANSFER => true,
+            CURLOPT_FOLLOWLOCATION => true,
+            CURLOPT_SSL_VERIFYHOST => false,
+            CURLOPT_SSL_VERIFYPEER => false,
+            CURLOPT_URL            => $this->location ,			
+            CURLOPT_POSTFIELDS => $request ,
+            CURLOPT_HTTPHEADER => $header ,
+            );
+
+        curl_setopt_array($soap_do , $options);
+
+        $output = curl_exec($soap_do);
+
+        if( $output === false) 
+        {
+                $err = 'Curl error: ' . curl_error($soap_do);
+                echo $err;
+            } 
+        else 
+        {
+            ///Operation completed successfully
+            }
+        curl_close($soap_do);
+        return $output;
+    }
+    
+    //Request for a timetable with roomid as int
+    public function getJson($param){
+        //get all eventIDs in a given room
+        $eventIDs = $this-> findUnit($param);
+        //get all information on each event
+        foreach ($eventIDs as $each_event) {
+            $events[] = $this->readUnit((int) $each_event);
+        }
+        $timetable = array();
+        $currentWeek = $this->getCurrentWeekDates();
+        //Here I go over the soapresponse
+        foreach ($events as $event){
+            $title = $event['hisunit']['hisplanelements']['hisplanelement'][0]['hisdefaulttext'];
+            foreach($event as $subject){
+                $units = $subject['hisplanelements']['hisplanelement'];
+                foreach($units as $unit){
+                    $dates = $unit['hisplannedDates']['hisplannedDate']['hisindividualDates']['hisindividualDate'];
+                    foreach($dates as $date){
+                        $roomID = $date['hisroomId'];
+                        $datum = $date['hisexecutiondate'];
+                        if(intval($roomID) == $param && in_array($datum,$currentWeek)){
+                            
+                            $startTime = $date['hisstarttime'];
+                            $endTime = $date['hisendtime'];
+                            $json = array(
+                                'title' => $title,
+                                'start' => $datum." ".$startTime,
+                                'end'   => $datum." ".$endTime
+                            );
+                            array_push($timetable,$json);
+                        }
+                        
+                       
+                      
+                       
+                   }
+               }
+           }
+           
+       }
+        return json_encode($timetable);
+    }
+    
+    //this function transforms a xml string into an array
+    private function toArray($response){
+        $cleanresponse = preg_replace("/(<\/?)(\w+):([^>]*>)/", "$1$2$3", $response);
+        $xml = new SimpleXMLElement($cleanresponse);
+        $array = json_decode(json_encode((array)$xml), TRUE);
+        return $array;
+    }
+
+    //Request for a timetable with roomids as array
+    public function getJsons($param){
+        //get all eventIDs in a given room
+        foreach ($param as $ID) {
+            $eventIDs = $this-> findUnit($ID);
+        }
+        $eventIDs = array_unique($eventIDs);
+        
+        //get all information on each event
+        foreach ($eventIDs as $each_event) {
+            $events[] = $this->readUnit((int) $each_event);
+        }
+        $ttables = [];
+        $currentWeek = $this->getCurrentWeekDates();
+        foreach ($param as $room){
+            $timetable = array();
+            //Here I go over the soapresponse
+            foreach ($events as $event){
+                $title = $event['hisunit']['hisplanelements']['hisplanelement'][0]['hisdefaulttext'];
+                foreach($event as $subject){
+                    $units = $subject['hisplanelements']['hisplanelement'];
+                    foreach($units as $unit){
+                        $dates = $unit['hisplannedDates']['hisplannedDate']['hisindividualDates']['hisindividualDate'];
+                        foreach($dates as $date){
+                            $roomID = $date['hisroomId'];
+                            $datum = $date['hisexecutiondate'];
+                            if(intval($roomID) == $room && in_array($datum,$currentWeek)){
+                            
+                                $startTime = $date['hisstarttime'];
+                                $endTime = $date['hisendtime'];
+                                $json = array(
+                                    'title' => $title,
+                                    'start' => $datum." ".$startTime,
+                                    'end'   => $datum." ".$endTime
+                                );
+                                $timetable[]= $json;
+                            }
+                        }
+                    }
+                } 
+            }
+            $ttables[$room] =json_encode($timetable);
+        }
+        return $ttables;
+    }
+    
+    
+    function getCurrentWeekDates()
+    {
+        $DateArray = array();
+        $startdate = strtotime('Now');
+        for($i=0 ;$i<=7; $i++) {
+            $DateArray[] = date('Y-m-d', strtotime("+ {$i} day", $startdate));
+        
+        }
+        return $DateArray;
+    }
+
+}
+?>
diff --git a/modules-available/locationinfo/inc/coursebackend.inc.php b/modules-available/locationinfo/inc/coursebackend.inc.php
index 39ba3b90..184ca048 100644
--- a/modules-available/locationinfo/inc/coursebackend.inc.php
+++ b/modules-available/locationinfo/inc/coursebackend.inc.php
@@ -75,34 +75,87 @@ abstract class CourseBackend
 	 */
 	public abstract function getDisplayName();
 
-	/**
+        /**
+         * initializes the class with url it needs to connect to.
+         */
+        public abstract function __contruct($url);
+
+        
+        /**
+         * @returns array with parameter name as key and type as value
+         */
+        public abstract function getCredentials();
+        
+        /**
+         * uses json to setCredentials, the json must follow the form given in
+         * getCredentials
+         * @returns void 
+         */
+        public abstract function setCredentials($json);
+
+        /**
 	 * @return int desired caching time of results, in seconds. 0 = no caching
 	 */
 	public abstract function getCacheTime();
+        
+        /**
+         * @return int age after which ttables are no longer refreshed should be
+         * greater then CacheTime
+         */
+        public abstract function getRefreshTime();
 
-	/**
+        /**
 	 * Internal version of fetch, to be overridden by subclasses.
 	 * @param $roomIds
-	 * @return mixed
+	 * @return array a multidemensional array that uses the roomID as key
+         * and has the sheduls as string in the value
 	 */
-	protected abstract function fetchSchedulesInternal($roomIds);
+	protected abstract function fetchSchedulesInternal($roomId);
 
 	/**
-	 * Method for fetching the schedules of the given rooms.
-	 * @param array $roomIds Array of room IDs to fetch
-	 * @return array|bool some multidimensional array of rooms as result, or false on error
+	 * Method for fetching the schedule of the given room.
+	 * @param int $roomId int of room ID to fetch
+	 * @return string|bool some jsonstring as result, or false on error
 	 */
-	public final function fetchSchedules($roomIds)
+	public final function fetchSchedule($roomID)
 	{
-		// TODO: Check if in cache
-		// TODO: Check if we should refresh other rooms recently requested by front ends but not included in $roomIds
-		$aggregatedRoomIds = $roomIds; // + extra rooms
-		// ...
-		// If not in cache:
-		$result = $this->fetchSchedulesInternal($aggregatedRoomIds);
-		// TODO: Place in cache if necessary
-		// TODO: Remove entries from result that were not in $roomsIds
-		return $result;
+            $dbquery1 = Database::simpleQuery("SELECT servertype, serverid, serverroomid, lastcalenderupdate FROM location_info WHERE locationid = :id", array('id' => $roomID));
+            $dbd1=$dbquery1->fetch(PDO::FETCH_ASSOC);
+            $serverID = $dbd1['serverid'];
+            $sroomID = $dbd1['serverroomid'];
+            $lastUpdate = $dbd1['lastcalenderupdate'];
+            //Check if in cache
+            if(strtotime($lastUpdate) > strtotime("-".$this->getCachedTime()."seconds") && $this->getCachedTime()>0) {
+                $dbquery3 = Database::simpleQuery("SELECT calendar FROM location_info WHERE locationid = :id", array('id' => $sroomID));
+                $dbd3=$dbquery3->fetch(PDO::FETCH_ASSOC);
+                return $dbd3['callendar'];
+            }
+            //Check if we should refresh other rooms recently requested by front ends
+            elseif ($this->getCachedTime()>0) {
+                $dbquery4 = Database::simpleQuery("SELECT serverroomid, lastcalenderupdate FROM location_info WHERE serverid= :id", array('id' => $serverID));
+                $roomIDs[] = $sroomID;
+                foreach($dbquery4->fetchAll(PDO::FETCH_COLUMN) as $row){
+                    if($row['lastcalenderupdate']<$this->getRefreshTime()){
+                        $roomIDs[] = $row['serverroomid'];
+                    }
+                }
+                $roomIDs = array_unique($roomIDs);
+            }
+            else {
+                $roomIDs[] = $sroomID;
+            }
+            $dbquery2 = Database::simpleQuery("SELECT serverurl, credentials FROM `setting_location_info` WHERE serverid = :id", array('id' => $serverID));
+            $dbd2=$dbquery2->fetch(PDO::FETCH_ASSOC);
+            $this->setCredentials($dbd2['credentials']);
+            $result = $this->getJsons($roomIDs);
+            
+            if($this->getCachedTime()>0){
+                foreach ($result as $key => $value) {
+                    $now = strtotime('Now');
+                    $dbquery1 = Database::simpleQuery("UPDATE location_info SET calendar = :ttable, lastcalenderupdate = :now WHERE locationid = :id ", array('id' => $key,'ttable' => $result[$key],'now'=> $now));
+                }
+            }
+            return $result[$roomID];
 	}
 
 }
diff --git a/modules-available/locationinfo/inc/coursebackend/coursebackend_hisinone.inc.php b/modules-available/locationinfo/inc/coursebackend/coursebackend_hisinone.inc.php
index 20ddeffb..0e790d27 100644
--- a/modules-available/locationinfo/inc/coursebackend/coursebackend_hisinone.inc.php
+++ b/modules-available/locationinfo/inc/coursebackend/coursebackend_hisinone.inc.php
@@ -2,12 +2,289 @@
 
 class CourseBackend_HisInOne extends CourseBackend
 {
+    private $username;
+    private $password;
+    private $location;
 
-	public function getDisplayName()
-	{
-		return 'HIS in One';
-	}
 
-	// TODO
+    //Constructs the HisInOneClient 
+    function __construct($location) {
+        $this->location = $location."/qisserver/services2/CourseService";
+    }
+    //
+    public function setCredentials($json) {
+        $data = json_decode($json, TRUE);
+        $this->password = $data['password'];
+        $this->username = $data['username']."/t".$data['role'];
+    }
+
+    //Cache the timetables for 30 minutes ttables older than 60 are not refreshed
+    public function getCacheTime(){
+        return  30*60;
+    }
+    //ttables older than 60 minutes are not refreshed
+    public function getRefreshTime() {
+        return 60*60;
+    }
+    
+    public function getDisplayName(){
+        return "HisInOne";
+    }
+    
+    public function getCredentials() {
+        $credentials = ["username" => "string", "role" =>"string","password"=>"string"];
+        return $credentials;
+    }
+    
+    //Contstructs the Soap Header $doc is a DOMDocument this returns a DOMElement
+    private function getHeader($doc){
+        $header = $doc->createElement( 'SOAP-ENV:Header');
+        $security = $doc->createElementNS('http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd','ns2:Security');
+        $mustunderstand = $doc->createAttribute('SOAP-ENV:mustUnderstand');
+        $mustunderstand->value = 1;
+        $security->appendChild($mustunderstand);
+        $header->appendChild($security);
+        $token = $doc->createElement('ns2:UsernameToken');
+        $security->appendChild($token);
+        $user = $doc->createElement('ns2:Username',  $this->username);
+        $token->appendChild($user);
+        $pass = $doc->createElement('ns2:Password', $this->password);
+        $type = $doc->createAttribute('Type');
+        $type ->value = 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText';
+        $pass ->appendChild($type);
+        $token->appendChild($pass);
+        return $header;
+    }
+    
+    //returns the IDs in an array for a given roomID
+    public function findUnit($roomID){
+        $termyear = date('Y');
+        $termtype = date('n');
+        if($termtype > 3 && termtype < 10){
+            $termtype = 2;
+        }
+        elseif ($termtype > 10) {
+        $termtype = 1;
+        $termyear = $termyear + 1;
+        }
+        else{
+            $termtype = 1;
+        }
+        $doc  = new DOMDocument('1.0', 'utf-8');
+        $doc->formatOutput = true;
+        $envelope = $doc->createElementNS('http://schemas.xmlsoap.org/soap/envelope/', 'SOAP-ENV:Envelope');
+        $doc->appendChild($envelope);
+        $envelope->setAttributeNS('http://www.w3.org/2000/xmlns/' ,'xmlns:ns1', 'http://www.his.de/ws/courseService');
+        
+        $header = $this->getHeader($doc);
+        $envelope->appendChild($header);
+        //Body of the request
+        $body = $doc->createElement('SOAP-ENV:Body');
+        $envelope->appendChild($body);
+        $findUnit= $doc->createElement('ns1:findUnit');
+        $body->appendChild($findUnit);
+        $unitDefaulttext = $doc->createElement('ns1:unitDefaulttext');
+        $findUnit->appendChild($unitDefaulttext);
+        $unitElementnr = $doc->createElement('ns1:unitElementnr');
+        $findUnit->appendChild($unitElementnr);
+        $editingStatusId = $doc->createElement('ns1:editingStatusId');
+        $findUnit->appendChild($editingStatusId);
+        $courseEventtypeId = $doc->createElement('ns1:courseEventtypeId');
+        $findUnit->appendChild($courseEventtypeId);
+        $courseTeachingLanguageId = $doc->createElement('ns1:courseTeachingLanguageId');
+        $findUnit->appendChild($courseTeachingLanguageId);
+        $planelementDefaulttext = $doc->createElement('ns1:planelementDefaulttext');
+        $findUnit->appendChild($planelementDefaulttext);
+        $parallelgroupId= $doc->createElement('ns1:parallelgroupId');
+        $findUnit->appendChild($parallelgroupId);
+        $termYearN = $doc->createElement('termYear',$termyear);
+        $findUnit->appendChild($termYearN);
+        $termTypeValueId = $doc->createElement('termTypeValueId',$termtype);
+        $findUnit->appendChild($termTypeValueId);
+        $individualDatesExecutionDate = $doc->createElement('ns1:individualDatesExecutionDate');
+        $findUnit->appendChild($individualDatesExecutionDate);
+        $individualDatesStarttime = $doc->createElement('ns1:individualDatesStarttime');
+        $findUnit->appendChild($individualDatesStarttime);
+        $individualDatesEndtime = $doc->createElement('ns1:individualDatesEndtime');
+        $findUnit->appendChild($individualDatesEndtime);
+        $roomIdN = $doc->createElement('ns1:roomId',$roomID);
+        $findUnit->appendChild($roomIdN);
+        
+        $soap_request = $doc->saveXML();
+        $respons1 = $this->__doRequest($soap_request, "findUnit");
+        $respons2 = $this->toArray($respons1);
+        $id = $respons2['soapenvBody']['hisfindUnitResponse']['hisunitIds']['hisid'];
+        return $id;
+    }
+    
+    //This function sends a Soaprequest with the eventID and returns an array which contains much
+    // informations, like start and enddates for events and their name.
+    public function readUnit($unit) {
+        $doc  = new DOMDocument('1.0', 'utf-8');
+        $doc->formatOutput = true;
+        $envelope = $doc->createElementNS('http://schemas.xmlsoap.org/soap/envelope/', 'SOAP-ENV:Envelope');
+        $doc->appendChild($envelope);
+        $envelope->setAttributeNS('http://www.w3.org/2000/xmlns/' ,'xmlns:ns1', 'http://www.his.de/ws/courseService');
+        
+        $header = $this->getHeader($doc);
+        $envelope->appendChild($header);
+        //body of the request
+        $body = $doc->createElement('SOAP-ENV:Body');
+        $envelope->appendChild($body);
+        $readUnit =$doc->createElement('ns1:readUnit');
+        $body->appendChild($readUnit);
+        $unitId = $doc->createElement('ns1:unitId',$unit);
+        $readUnit->appendChild($unitId);
+
+        $soap_request = $doc->saveXML();
+        $respons1 = $this->__doRequest($soap_request, "readUnit");
+        $respons2 = $this->toArray($respons1);
+        $respons3 = $respons2['soapenvBody']['hisreadUnitResponse'];
+        return $respons3;
+    }
+    
+    //Makes a SOAP-Request as a normal POST
+    function __doRequest($request, $action){
+        $header = array(
+            "Content-type: text/xml;charset=\"utf-8\"",
+            "SOAPAction: \"".$action."\"",
+            "Content-length: ".strlen($request),
+            );
+
+        $soap_do = curl_init();
+
+        $options = array( 
+            CURLOPT_RETURNTRANSFER => true,
+            CURLOPT_FOLLOWLOCATION => true,
+            CURLOPT_SSL_VERIFYHOST => false,
+            CURLOPT_SSL_VERIFYPEER => false,
+            CURLOPT_URL            => $this->location ,			
+            CURLOPT_POSTFIELDS => $request ,
+            CURLOPT_HTTPHEADER => $header ,
+            );
+
+        curl_setopt_array($soap_do , $options);
+
+        $output = curl_exec($soap_do);
+
+        if( $output === false) 
+        {
+                $err = 'Curl error: ' . curl_error($soap_do);
+                echo $err;
+            } 
+        else 
+        {
+            ///Operation completed successfully
+            }
+        curl_close($soap_do);
+        return $output;
+    }
+    
+    //Request for a timetable with roomid as int
+    public function getJson($param){
+        //get all eventIDs in a given room
+        $eventIDs = $this-> findUnit($param);
+        //get all information on each event
+        foreach ($eventIDs as $each_event) {
+            $events[] = $this->readUnit((int) $each_event);
+        }
+        $timetable = array();
+        $currentWeek = $this->getCurrentWeekDates();
+        //Here I go over the soapresponse
+        foreach ($events as $event){
+            $title = $event['hisunit']['hisplanelements']['hisplanelement'][0]['hisdefaulttext'];
+            foreach($event as $subject){
+                $units = $subject['hisplanelements']['hisplanelement'];
+                foreach($units as $unit){
+                    $dates = $unit['hisplannedDates']['hisplannedDate']['hisindividualDates']['hisindividualDate'];
+                    foreach($dates as $date){
+                        $roomID = $date['hisroomId'];
+                        $datum = $date['hisexecutiondate'];
+                        if(intval($roomID) == $param && in_array($datum,$currentWeek)){
+                            
+                            $startTime = $date['hisstarttime'];
+                            $endTime = $date['hisendtime'];
+                            $json = array(
+                                'title' => $title,
+                                'start' => $datum." ".$startTime,
+                                'end'   => $datum." ".$endTime
+                            );
+                            array_push($timetable,$json);
+                        }
+                        
+                       
+                      
+                       
+                   }
+               }
+           }
+           
+       }
+        return json_encode($timetable);
+    }
+    
+    //this function transforms a xml string into an array
+    private function toArray($response){
+        $cleanresponse = preg_replace("/(<\/?)(\w+):([^>]*>)/", "$1$2$3", $response);
+        $xml = new SimpleXMLElement($cleanresponse);
+        $array = json_decode(json_encode((array)$xml), TRUE);
+        return $array;
+    }
+
+    //Request for a timetable with roomids as array
+    public function fetchSchedulesInternal($param){
+        //get all eventIDs in a given room
+        foreach ($param as $ID) {
+            $eventIDs = $this-> findUnit($ID);
+        }
+        $eventIDs = array_unique($eventIDs);
+        
+        //get all information on each event
+        foreach ($eventIDs as $each_event) {
+            $events[] = $this->readUnit((int) $each_event);
+        }
+        $ttables = [];
+        $currentWeek = $this->getCurrentWeekDates();
+        foreach ($param as $room){
+            $timetable = array();
+            //Here I go over the soapresponse
+            foreach ($events as $event){
+                $title = $event['hisunit']['hisplanelements']['hisplanelement'][0]['hisdefaulttext'];
+                foreach($event as $subject){
+                    $units = $subject['hisplanelements']['hisplanelement'];
+                    foreach($units as $unit){
+                        $dates = $unit['hisplannedDates']['hisplannedDate']['hisindividualDates']['hisindividualDate'];
+                        foreach($dates as $date){
+                            $roomID = $date['hisroomId'];
+                            $datum = $date['hisexecutiondate'];
+                            if(intval($roomID) == $room && in_array($datum,$currentWeek)){
+                            
+                                $startTime = $date['hisstarttime'];
+                                $endTime = $date['hisendtime'];
+                                $json = array(
+                                    'title' => $title,
+                                    'start' => $datum." ".$startTime,
+                                    'end'   => $datum." ".$endTime
+                                );
+                                $timetable[]= $json;
+                            }
+                        }
+                    }
+                } 
+            }
+            $ttables[$room] =json_encode($timetable);
+        }
+        return $ttables;
+    }
+    
+    
+    private function getCurrentWeekDates(){
+        $DateArray = array();
+        $startdate = strtotime('Now');
+        for($i=0 ;$i<=7; $i++) {
+            $DateArray[] = date('Y-m-d', strtotime("+ {$i} day", $startdate)); 
+        }
+        return $DateArray;
+    }
 
 }
\ No newline at end of file