<?php

class User_PoolController extends Zend_Controller_Action
{
	private $membership;
    public function init()
    {
		$membershipMapper = new Application_Model_MembershipMapper();
		$this->membership = new Application_Model_Membership();
		$membershipMapper->find($_SESSION['membershipID'],$this->membership);
    }

    public function indexAction()
    {    	
    	// TODO: ACL: is he allowed to see the pools of a group
    	
    	$result = $this->_request->getParam('deleteresult');
		if($result != ""){
			$pbsNotifier = new Pbs_Notifier();
			$this->view->notification = $pbsNotifier->notify('delete',$result);
		}
		$result = $this->_request->getParam('modifyresult');
		if($result != ""){
			$pbsNotifier = new Pbs_Notifier();
			$this->view->notification = $pbsNotifier->notify('modify',$result);
		}
		$result = $this->_request->getParam('addresult');
		if($result != ""){
			$pbsNotifier = new Pbs_Notifier();
			$this->view->notification = $pbsNotifier->notify('create',$result);
		}
		
		
        $poolMapper = new Application_Model_PoolMapper();
        $this->view->pools = $poolMapper->fetchAll();
		
		$clientmapper = new Application_Model_ClientMapper();
		$clients = $clientmapper->fetchAll();
		foreach($clients as $c){
			#$client = new Application_Model_Client($c);
			$clientsArray[] = $c->toArray();
		}
		$assignedclientmapper = new Application_Model_PoolEntriesMapper();
		$assignedclients = $assignedclientmapper->fetchAll();
		foreach($assignedclients as $c){
			$assignedclientsArray[] = $c->toArray();
		}			
		$freeclients  = $this->arrayDiff($clientsArray,$assignedclientsArray);
		
		$this->view->freeclients = $freeclients;	
    }

    public function createpoolAction()    	
    {
    	// TODO: ACL: is he allowed to create a pool?
    	if (!isset($_POST["add"])){
    		$addfilterform = new user_Form_Pool(array('buttontext' => 'Create Pool'));    		
			$this->view->addpool = $addfilterform;		
		}else {
			$addpoolform = new user_Form_Pool(array('buttontext' => 'Create Pool'),$_POST);
			if ($addpoolform->isValid($_POST)) {			
				try{
					$pool = new Application_Model_Pool($_POST);
					$pool->setGroupID($this->membership->getGroupID());
					$poolmapper = new Application_Model_PoolMapper();
					$poolmapper->save($pool);
					$this->_redirect('/dev/pool/index/addresult/ok');
				}catch (Zend_Exception $e) {  
        			echo "Error message 2: " . $e->getMessage() . "\n";
        			$this->_redirect('/dev/pool/index/addresult/error');  
        		}
			}
			$this->view->addpool = $addfilterform;		
		}
    }

    public function deletepoolAction()
    {
        $poolID = $this->_request->getParam('poolID');
		// TODO: ACL: is he allowed to delete a pool?
		#if( he is allowed){
			if(is_numeric($poolID)){
				$poolmapper = new Application_Model_PoolMapper();
				$pool = new Application_Model_Pool();
				$poolmapper->find($poolID,$pool);
				if($this->membership->getGroupID() == $pool->getGroupID()){								
					$deletepool = new Application_Model_Pool();
					$deletepool->setID($poolID);				
					$poolmapper->delete($deletepool);
					$this->_redirect('/user/pool/index/deleteresult/ok');
				}
				else{
					$this->_redirect('/user/pool/index/deleteresult/forbidden');
				}				
			}			
			$this->_redirect('/user/pool/index/deleteresult/error');
		#}else{
		#	$this->_redirect('/user/pool/index/deleteresult/forbidden');
		#}
    }

    public function editpoolAction()
    {
    	// TODO: ACL: is he allowed to edit a pool?
    	// TODO: is he allowed to edit this pool?
        if (!isset($_POST["add"])){        
			$poolID = $this->_request->getParam('poolID');
			$pool = new Application_Model_Pool();
			$poolmapper = new Application_Model_PoolMapper();
			$poolmapper->find($poolID,$pool);		
			$poolArray = $pool->toArray();
			$editpool = new user_Form_Pool(array('buttontext' => 'Edit Pool'));
			$editpool->populate($poolArray);
			$this->view->editpool = $editpool;
		
		}else {
			$editpoolform = new user_Form_Pool(array('buttontext' => 'Edit Pool'),$_POST);
			if ($editpoolform->isValid($_POST)) {			
				try{
					$pool = new Application_Model_Pool($_POST);
					$pool->setID($this->_request->getParam('poolID'));
					$poolmapper = new Application_Model_PoolMapper();
					$poolmapper->save($pool);
					$this->_redirect('/dev/pool/index/modifyresult/ok');			    	
				}catch (Zend_Exception $e) {  
        			echo "Error message 2: " . $e->getMessage() . "\n";  
        			$this->_redirect('/dev/pool/index/modifyresult/error');	
        		}
			}
			$this->view->editpool = $editpoolform;
		}
    }

    public function linkclientAction()
    {
        // action body
    }

    public function unlinkclientAction()
    {
        // action body
    }
    
    // creates an array of two arrays
    // first parameter is the list of all clients
    // second parameter is the list of clients which are already in a group
    // return value is a list of all clients, which are in no group
	private function arrayDiff($a, $b){
		foreach($a as $k1 => $i1){
			foreach($b as $k2 => $i2){
				if($i1['clientID'] == $i2['clientID']){
					unset($a[$k1]);
				}
			}
		}
		return $a;
	}

}