<?php

/**
 *
 * Category model for the cart
 *
 * @package	VirtueMart
 * @subpackage Cart
 * @author RolandD
 * @author Max Milbers
 * @link https://virtuemart.net
 * @copyright Copyright (c) 2004 - 2010 VirtueMart Team. All rights reserved.
 * @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
 * VirtueMart is free software. This version may have been modified pursuant
 * to the GNU General Public License, and as distributed it includes or
 * is derivative of works licensed under the GNU General Public License or
 * other free or open source software licenses.
 * @version $Id: cart.php 9656 2017-10-25 11:20:38Z Milbo $
 */
// Check to ensure this file is included in Joomla!
defined('_JEXEC') or die('Restricted access');


/**
 * Model class for the cart
 * Very important, use ALWAYS the getCart function, to get the cart from the session
 * @package	VirtueMart
 * @subpackage Cart
 * @author RolandD
 * @author Max Milbers
 */
class VirtueMartCart {

	var $products = array();
	var $_productAdded = true;
	var $_calculated = false;
	var $_inCheckOut = false;
	var $_inConfirm = false;
	var $_fromCart = false;
	var $_dataValidated = false;
	var $_blockConfirm = false;
	var $_confirmDone = false;
	var $_redirect = false;
	var $_redirected = false;
	var $_redirect_disabled = false;
	var $_lastError = null; // Used to pass errmsg to the cart using addJS()
	//todo multivendor stuff must be set in the add function, first product determines ownership of cart, or a fixed vendor is used
	var $vendorId = 0;
	var $lastVisitedCategoryId = 0;
	var $virtuemart_shipmentmethod_id = 0;
	var $virtuemart_paymentmethod_id = 0;
	var $automaticSelectedShipment = false;
	var $automaticSelectedPayment  = false;
	var $BT = 0;
	var $ST = 0;
	var $cartfields = null;

	var $couponCode = '';
	var $order_language = '';
	var $orderDetails = 0;

	var $lists = null;
	var $order_number=null; // added to solve emptying cart for payment notification
	var $order_pass=null;
	var $virtuemart_order_id = false;
	var $customer_number=null;
	var $cartAdv = false;

	var $pricesCurrency = null;
	var $paymentCurrency = null;
	var $STsameAsBT = 1;
	var $selected_shipto = 0;
	var $productParentOrderable = TRUE;
	var $_triesValidateCoupon = array();

	var $cartProductsData = array();
	var $cartData = array();
	var $cartPrices = array();
	var $layout ;
	var $layoutPath='';
	var $virtuemart_cart_id = 0;
	var $customer_notified = false;
	/* @deprecated */
	var $pricesUnformatted = array();

	private static $_cart = null;

	var $useSSL = 1;

	public function __construct() {
		$this->useSSL = vmURI::useSSL();
		$this->useXHTML = false;
		$this->cartProductsData = array();
		$this->layout = VmConfig::get('cartlayout','default');

		if(empty($this->layout)){
			$this->layout = 'default';
		}
	}

	/**
	 * Get the cart from the session
	 *
	 * @author Max Milbers
	 * @access public
	 * @param array $cart the cart to store in the session
	 */
	public static function &getCart($forceNew=false, $options = array(), $cartData=NULL) {

		//What does this here? for json stuff?
		if (!class_exists('JTable')) require(VMPATH_LIBS . DS . 'joomla' . DS . 'database' . DS . 'table.php');

		if(empty(self::$_cart) or $forceNew){

			self::$_cart = new VirtueMartCart;

			if (empty($cartData)) {
				$session = JFactory::getSession($options);
				$cartSession = $session->get('vmcart', 0, 'vm');
				if (!empty($cartSession)) {
					$sessionCart = (object)json_decode( $cartSession ,true);

					if(empty($sessionCart->cartProductsData) or ($sessionCart->_guest and $sessionCart->_guest!=JFactory::getUser()->guest)){
						self::$_cart->loadCart($sessionCart);
					}
				}
			} else {
				$cartSession=$sessionCart=$cartData;
			}

			$userModel = VmModel::getModel('user');
			self::$_cart->user = $userModel->getCurrentUser();

			$lang = JFactory::getLanguage();
			self::$_cart->order_language = $lang->getTag();

			if (!empty($cartSession)) {

				if(isset($sessionCart->cartProductsData)){
					self::$_cart->cartProductsData 				= $sessionCart->cartProductsData;
					self::$_cart->vendorId	 					= $sessionCart->vendorId;
					self::$_cart->lastVisitedCategoryId	 		= $sessionCart->lastVisitedCategoryId;
					self::$_cart->virtuemart_shipmentmethod_id	= $sessionCart->virtuemart_shipmentmethod_id;
					self::$_cart->virtuemart_paymentmethod_id 	= $sessionCart->virtuemart_paymentmethod_id;
					self::$_cart->automaticSelectedShipment 	= $sessionCart->automaticSelectedShipment;
					self::$_cart->automaticSelectedPayment 		= $sessionCart->automaticSelectedPayment;
					self::$_cart->BT 							= $sessionCart->BT;
					self::$_cart->ST 							= $sessionCart->ST;
					self::$_cart->cartfields					= $sessionCart->cartfields;

					self::$_cart->couponCode 					= $sessionCart->couponCode;
					self::$_cart->_triesValidateCoupon			= $sessionCart->_triesValidateCoupon;
					self::$_cart->order_number					= $sessionCart->order_number;
					self::$_cart->pricesCurrency				= $sessionCart->pricesCurrency;
					self::$_cart->paymentCurrency				= $sessionCart->paymentCurrency;

					self::$_cart->_guest						=  $sessionCart->_guest;
					self::$_cart->_inCheckOut 					= $sessionCart->_inCheckOut;
					self::$_cart->_inConfirm					= $sessionCart->_inConfirm;
					self::$_cart->_dataValidated				= $sessionCart->_dataValidated;
					self::$_cart->_confirmDone					= $sessionCart->_confirmDone;
					self::$_cart->STsameAsBT					= $sessionCart->STsameAsBT;
					self::$_cart->selected_shipto 				= $sessionCart->selected_shipto;
					self::$_cart->_fromCart						= $sessionCart->_fromCart;
					self::$_cart->layout						= $sessionCart->layout;
					self::$_cart->layoutPath				    = $sessionCart->layoutPath;
					self::$_cart->virtuemart_cart_id			= $sessionCart->virtuemart_cart_id;
				}
			}

			self::$_cart->loadSetRenderBTSTAddress();

			if (empty(self::$_cart->virtuemart_shipmentmethod_id) && !empty(self::$_cart->user->virtuemart_shipmentmethod_id)) {
				self::$_cart->virtuemart_shipmentmethod_id = self::$_cart->user->virtuemart_shipmentmethod_id;
			}

			if (empty(self::$_cart->virtuemart_paymentmethod_id) && !empty(self::$_cart->user->virtuemart_paymentmethod_id)) {
				self::$_cart->virtuemart_paymentmethod_id = self::$_cart->user->virtuemart_paymentmethod_id;
			}

			//Todo must be removed
			if((!empty(self::$_cart->user->tos) || !empty(self::$_cart->BT['tos'])) && !VmConfig::get('agree_to_tos_onorder',0) ){
				self::$_cart->BT['tos'] = 1;
			}

			if(!empty(self::$_cart->user->customer_number)){
				self::$_cart->customer_number = self::$_cart->user->customer_number;
			}

			if(empty(self::$_cart->customer_number) or strpos(self::$_cart->customer_number,'nonreg_')!==FALSE){
				$firstName = empty(self::$_cart->BT['first_name'])? '':self::$_cart->BT['first_name'];
				$lastName = empty(self::$_cart->BT['last_name'])? '':self::$_cart->BT['last_name'];
				$email = empty(self::$_cart->BT['email'])? '':self::$_cart->BT['email'];
				$qdate = date("Ymd_His_");
				if (!class_exists ('shopFunctionsF')) require(VMPATH_SITE . DS . 'helpers' . DS . 'shopfunctionsf.php');
				self::$_cart->customer_number = 'nonreg_'.shopFunctionsF::vmSubstr($firstName,0,2).shopFunctionsF::vmSubstr($lastName,0,2).shopFunctionsF::vmSubstr($email,0,2).$qdate;
			}

			$multixcart = VmConfig::get('multixcart',0);
			if(!empty($multixcart)){
				if($multixcart=='byvendor' or self::$_cart->vendorId==1){
					$vendor = VmModel::getModel('vendor');
					$vId = $vendor->getLoggedVendor();
					if(!empty($vId) and $vId!=1){
						self::$_cart->vendorId = $vId;
					}
					if(empty(self::$_cart->vendorId)) self::$_cart->vendorId = 1;
				}
				if($multixcart=='byselection'){
					self::$_cart->vendorId = vRequest::getInt('virtuemart_vendor_id',self::$_cart->vendorId);
				}
			}

			//We need to check for the amount of products. A cart in Multix mode using the first product
			// to determine the vendorId is a valid if there is no product in the cart
			$cp = count(self::$_cart->cartProductsData);
			if( $cp >0 and empty(self::$_cart->vendorId)){
				self::$_cart->vendorId = 1;
			} else if ($cp == 0 and !empty($multixcart)) {
				self::$_cart->vendorId = 0;
			}
			//vmdebug('Created new cart',self::$_cart->vendorId);
		}

		return self::$_cart;
	}


	function loadSetRenderBTSTAddress(){

		//If the user is logged in and exists, we check if he has already addresses stored
		if(!empty($this->user->virtuemart_user_id)){

			foreach ($this->user->userInfo as $address) {
				if ($address->address_type == 'BT') {
					$this->saveAddressInCart((array) $address, $address->address_type,false);
				} else {
					if(!empty($this->selected_shipto) and $address->virtuemart_userinfo_id==$this->selected_shipto){
						$this->saveAddressInCart((array) $address, $address->address_type,false,'');
					}
				}
			}
			if(empty($this->selected_shipto)){
				$this->STsameAsBT = 1;
				$this->ST = 0;
			}
		}
	}


	//function prepareAddressDataInCart($type='BT',$new = false,$virtuemart_user_id = null){
	function prepareAddressFieldsInCart(){

		$userFieldsModel =VmModel::getModel('Userfields');

		$types = array('BT','ST');
		foreach($types as $type){
			if($type=='ST'){
				$preFix = 'shipto_';
			} else {
				$preFix = '';
			}

			$addresstype = $type.'address'; //for example BTaddress
			$userFields = $userFieldsModel->getUserFieldsFor('cart',$type);
			$this->$addresstype = $userFieldsModel->getUserFieldsFilled(
				$userFields
				,$this->$type
				,$preFix
			);
		}

	}

	/**
	 * @author Max Milbers
	 */
	public function loadCart(&$existingSession){
		$currentUser = JFactory::getUser();
		if(!$currentUser->guest and $existingSession){
			$model = new VmModel();
			$carts = $model->getTable('carts');
			if(!empty($existingSession->virtuemart_cart_id)){
				$carts->load($existingSession->virtuemart_cart_id,'virtuemart_cart_id');
			} else {
				$carts->load($currentUser->id,0,' ORDER BY `modified_on` DESC');
			}

			$cartData = $carts->loadFieldValues();
			unset($cartData['_inCheckOut']);
			unset($cartData['_dataValidated']);
			unset($cartData['_confirmDone']);
			unset($cartData['_fromCart']);
			$this->virtuemart_cart_id = $cartData['virtuemart_cart_id'];
			if($cartData and !empty($cartData['cartData'])){
				$cartData['cartData'] = (object)json_decode($cartData['cartData'],true);

				if(!empty($cartData['cartData'])){
					if(!empty($cartData['cartData']->cartProductsData) and is_array($cartData['cartData']->cartProductsData)){
						foreach($cartData['cartData']->cartProductsData as $k => $product){
							foreach($existingSession->cartProductsData as $kses => $productses){
								if($product==$productses){
									unset($cartData['cartData']->cartProductsData[$k]);
								}
							}
						}
					}

					foreach($cartData['cartData'] as $key=>$value){
						if(is_array($value)){
							$existingSession->$key = array_merge( $value,(array)$existingSession->$key);
						} else if(empty($existingSession->$key)){
							$existingSession->$key = $cartData['cartData']->$key;
						}
					}

					if(count($existingSession->_triesValidateCoupon)>6){
						$existingSession->_triesValidateCoupon = array_slice($existingSession->_triesValidateCoupon,0,6);
						vmdebug('Coupon were blocked, release 1');
					}
				}
			}
		}
	}

	public function storeCart($cartDataToStore = false){
		$adminID = vmAccess::getBgManagerId();
		$currentUser = JFactory::getUser();
		if(!$currentUser->guest && (!$adminID || $adminID == $currentUser->id)){
			$model = new VmModel();
			$carts = $model->getTable('carts');
			if(!$cartDataToStore) $cartDataToStore = json_encode($this->getCartDataToStore());

			$cObj = new StdClass();
			if(!empty($this->virtuemart_cart_id)) $cObj->virtuemart_cart_id = (int) $this->virtuemart_cart_id;
			$cObj->virtuemart_user_id = (int) $currentUser->id;
			$cObj->virtuemart_vendor_id = (int) $this->vendorId;
			$cObj->cartData = $cartDataToStore;
			$carts->bindChecknStore($cObj);

			if(!empty($cObj->virtuemart_cart_id)){
				$this->virtuemart_cart_id = $cObj->virtuemart_cart_id;
			}
		}
	}

	public function deleteCart(){

		$model = new VmModel();
		$carts = $model->getTable('carts');

		if(!empty($this->virtuemart_cart_id)){
			$carts->delete($this->virtuemart_cart_id,'virtuemart_cart_id');
		} else {
			$currentUser = JFactory::getUser();
			if(!empty($currentUser->id)) {
				$carts->delete($currentUser->id);
			}
		}

	}

	/**
	 * Set the cart in the session
	 *
	 * @access public
	 * @param array $cart the cart to store in the session
	 */
	public function setCartIntoSession($storeDb = false, $forceWrite = false) {

		$session = JFactory::getSession();


		$sessionCart = $this->getCartDataToStore();
		$sessionCart = json_encode($sessionCart);
		$session->set('vmcart', $sessionCart,'vm');

		if($forceWrite){
			session_write_close();
			session_start();
		}

		if($storeDb){
			$this->storeCart();
		}
	}

	public function getCartDataToStore(){
		$sessionCart = new stdClass();

		$sessionCart->cartProductsData = $this->cartProductsData;
		$sessionCart->vendorId	 					= $this->vendorId;
		$sessionCart->lastVisitedCategoryId	 		= $this->lastVisitedCategoryId;
		$sessionCart->virtuemart_shipmentmethod_id	= $this->virtuemart_shipmentmethod_id;
		$sessionCart->virtuemart_paymentmethod_id 	= $this->virtuemart_paymentmethod_id;
		$sessionCart->automaticSelectedShipment 	= $this->automaticSelectedShipment;
		$sessionCart->automaticSelectedPayment 		= $this->automaticSelectedPayment;
		$sessionCart->order_number 		            = $this->order_number;

		$sessionCart->BT 							= $this->BT;
		$sessionCart->ST 							= $this->ST;
		$sessionCart->cartfields					= $this->cartfields;

		$sessionCart->couponCode 					= $this->couponCode;
		$sessionCart->_triesValidateCoupon			= $this->_triesValidateCoupon;
		$sessionCart->order_language 				= $this->order_language;

		$sessionCart->pricesCurrency				= $this->pricesCurrency;
		$sessionCart->paymentCurrency				= $this->paymentCurrency;

		//private variables
		//We nee to store this, so that we now if a user logged in before
		$sessionCart->_guest						= JFactory::getUser()->guest;
		$sessionCart->_inCheckOut 					= $this->_inCheckOut;
		$sessionCart->_inConfirm					= $this->_inConfirm;
		$sessionCart->_dataValidated				= $this->_dataValidated;
		$sessionCart->_confirmDone					= $this->_confirmDone;
		$sessionCart->STsameAsBT					= $this->STsameAsBT;
		$sessionCart->selected_shipto 				= $this->selected_shipto;
		$sessionCart->_fromCart						= $this->_fromCart;
		$sessionCart->layout						= $this->layout;
		$sessionCart->layoutPath					= $this->layoutPath;
		$sessionCart->virtuemart_cart_id			= $this->virtuemart_cart_id;
		return $sessionCart;
	}



	/**
	 * Remove the cart from the session
	 *
	 * @author Max Milbers
	 * @access public
	 */
	public function removeCartFromSession() {
		$session = JFactory::getSession();
		$session->set('vmcart', 0, 'vm');
	}

	public function setDataValidation($valid=false) {
		$this->_dataValidated = $valid;
	}

	public function getDataValidated() {
		return $this->_dataValidated;
	}

	public function getInCheckOut() {
		return $this->_inCheckOut;
	}

	public function setOutOfCheckout(){
		$this->_inCheckOut = false;
		$this->_dataValidated = false;
		$this->_blockConfirm = true;
		$this->_redirected = true;
		$this->_redirect = false;
		$this->setCartIntoSession(false,true);
	}

	public function blockConfirm(){
		$this->_blockConfirm = true;
	}

	/**
	 * For one page checkouts, disable with this the redirects
	 * @param bool $bool
	 */
	public function setRedirectDisabled($bool = TRUE){
		$this->_redirect_disabled = $bool;
	}

	/**
	 * Add a product to the cart
	 *
	 * @author Max Milbers
	 * @access public
	 */
	public function add($virtuemart_product_ids=null,&$errorMsg='') {

		$updateSession = false;
		$post = vRequest::getRequest();

		if(empty($virtuemart_product_ids)){
			$virtuemart_product_ids = vRequest::getInt('virtuemart_product_id'); //is sanitized
		}

		if (empty($virtuemart_product_ids)) {
			vmWarn('COM_VIRTUEMART_CART_ERROR_NO_PRODUCT_IDS');
			return false;
		} else {
			if(is_array($virtuemart_product_ids)){
				$virtuemart_product_ids = array_unique($virtuemart_product_ids);
			}
		}

		$products = array();
		$this->_productAdded = true;
		$productModel = VmModel::getModel('product');
		$customFieldsModel = VmModel::getModel('customfields');
		//Iterate through the prod_id's and perform an add to cart for each one
		foreach ($virtuemart_product_ids as $p_key => $virtuemart_product_id) {

			$product = false;
			$updateSession = true;
			$productData = array();

			if(empty($virtuemart_product_id)){
				vmWarn('Product could not be added with virtuemart_product_id = 0');
				return false;
			} else {
				$productData['virtuemart_product_id'] = (int)$virtuemart_product_id;
			}

			if(!empty( $post['quantity'][$p_key])){
				$productData['quantity'] = (int) $post['quantity'][$p_key];
			} else {
					continue;
			}

			if(!empty( $post['customProductData'][$virtuemart_product_id])){
				//$productData['customProductData']
				$customProductData  = $post['customProductData'][$virtuemart_product_id];
			} else {
				$customProductData = array();
			}

			//Now we check if the delivered customProductData is correct and add missing
			$productTemp = $productModel->getProduct($virtuemart_product_id, true, false,true,$productData['quantity']);
			$productTemp->modificatorSum = null;
			$product = clone($productTemp);

			if(VmConfig::get('multixcart',0)=='byproduct'){
				if(empty($this->vendorId)) $this->vendorId = $product->virtuemart_vendor_id;
				if(!empty($this->vendorId) and $this->vendorId != $product->virtuemart_vendor_id){
					//Product of another vendor recognised, for now we just return false,
					//later we will create here another cart (multicart)
					return false;
				}
			}

			$product->customfields = $customFieldsModel->getCustomEmbeddedProductCustomFields($product->allIds,0,1);
			$customProductDataTmp=array();

			// Some customfields may prevent the product being added to the cart
			$customFiltered = false;

			foreach($product->customfields as $customfield){

				if(!class_exists('vmCustomPlugin')) require(VMPATH_PLUGINLIBS.DS.'vmcustomplugin.php');
				JPluginHelper::importPlugin('vmcustom');
				$dispatcher = JDispatcher::getInstance();
				$addToCartReturnValues = $dispatcher->trigger('plgVmOnAddToCartFilter',array(&$product, &$customfield, &$customProductData, &$customFiltered));

				if(!$customFiltered && $customfield->is_input==1){
					if(isset($customProductData[$customfield->virtuemart_custom_id][$customfield->virtuemart_customfield_id])){

						if(is_array($customProductData[$customfield->virtuemart_custom_id][$customfield->virtuemart_customfield_id])){
							if(!class_exists('vmFilter'))require(VMPATH_ADMIN.DS.'helpers'.DS.'vmfilter.php');
							foreach($customProductData[$customfield->virtuemart_custom_id][$customfield->virtuemart_customfield_id] as $i=>$customData){

								$value = vmFilter::hl( $customData,array('deny_attribute'=>'*'));
								//to strong
								/* $value = preg_replace('@<[\/\!]*?[^<>]*?>@si','',$value);//remove all html tags  */
								//lets use instead
								$value = JComponentHelper::filterText($value);
								$value = (string)preg_replace('#on[a-z](.+?)\)#si','',$value);//replace start of script onclick() onload()...
								$value = trim(str_replace('"', ' ', $value),"'") ;
								$customProductData[$customfield->virtuemart_custom_id][$customfield->virtuemart_customfield_id][$i] = (string)preg_replace('#^\'#si','',$value);
							}
						}
						if(!isset($customProductDataTmp[$customfield->virtuemart_custom_id])) $customProductDataTmp[$customfield->virtuemart_custom_id] = array();
						$customProductDataTmp[$customfield->virtuemart_custom_id][$customfield->virtuemart_customfield_id] = $customProductData[$customfield->virtuemart_custom_id][$customfield->virtuemart_customfield_id];
					}
					else if(isset($customProductData[$customfield->virtuemart_custom_id])) {
						$customProductDataTmp[$customfield->virtuemart_custom_id] = $customProductData[$customfield->virtuemart_custom_id];
						vmdebug('my customp product data ',$customProductData[$customfield->virtuemart_custom_id]);
					}
				} else {
					if(!isset($customProductDataTmp[$customfield->virtuemart_custom_id])){
						$customProductDataTmp[$customfield->virtuemart_custom_id] = array();
					} else if(!is_array($customProductDataTmp[$customfield->virtuemart_custom_id])){
						$customProductDataTmp[$customfield->virtuemart_custom_id] = array($customProductDataTmp[$customfield->virtuemart_custom_id]);
					}
					$customProductDataTmp[$customfield->virtuemart_custom_id][(int)$customfield->virtuemart_customfield_id] = false;
				}

			}

			$productData['customProductData'] = $customProductDataTmp;


			$unsetA = array();
			$found = false;


			//Now lets check if there is already a product stored with the same id, if yes, increase quantity and recalculate
			foreach($this->cartProductsData as $k => &$cartProductData){
				$cartProductData = (array)$cartProductData;
				if(empty($cartProductData['virtuemart_product_id'])){
					$unsetA[] = $k;
					$errorMsg = true;
				} else {
					if($cartProductData['virtuemart_product_id'] == $productData['virtuemart_product_id']){

						//Okey, the id is already the same, so lets check the customProductData
						$diff = !$this->deepCompare($cartProductData['customProductData'],$productData['customProductData']);

						if(!$diff){

							$newTotal = $cartProductData['quantity'] + $productData['quantity'];

							if(!$product)$product = $this->getProduct((int) $productData['virtuemart_product_id'],$cartProductData['quantity']);
							if(empty($product->virtuemart_product_id)){
								vmWarn('COM_VIRTUEMART_PRODUCT_NOT_FOUND');
								$unsetA[] = $k;

							} else {
								$this->checkForQuantities($product, $newTotal);
								vmdebug("add to cart did checkForQuantities",$newTotal,$cartProductData['quantity'],$productData['quantity']);

								$product->quantity = $newTotal - $cartProductData['quantity'];
								$cartProductData['quantity'] = $newTotal;

								vmdebug('add to cart did $product->quantityAdded  ',$cartProductData['quantity']);
							}
							$found = TRUE;
							break;
						} else {
							vmdebug('product variant is different, I add to cart');
						}
					}
				}

				//add products to remove to array
				if($cartProductData['quantity']==0){
					$unsetA[] = $k;
				}

			}

			if(!$found){
				if(!$product)$product = $this->getProduct( (int)$productData['virtuemart_product_id'],$productData['quantity']);
				if(!empty($product->virtuemart_product_id)){

					$this->checkForQuantities($product, $product->quantity);
					vmdebug('my $productData $productData ',$productData);
					if(!empty($product->quantity)){
						$productData['quantity'] = $product->quantity;
						$this->cartProductsData[] = $productData;
					} else {
						$errorMsg = true;
					}
				} else {
					$errorMsg = true;
				}

			}

			if($product){
				$products[] = $product;
			}

			//Remove the products which have quantity=0
			foreach($unsetA as $v){
				unset($this->cartProductsData[$v]);
			}
		}

		JPluginHelper::importPlugin('vmextended');
		$dispatcher = JDispatcher::getInstance();
		$dispatcher->trigger('plgVmOnAddToCart',array(&$this));

		if ($updateSession== false) return false ;
		$this->_dataValidated = false;
		// End Iteration through Prod id's
		$this->setCartIntoSession(true);
		return $products;
	}

	static public function deepCompare($a,$b) {
		if(is_object($a) && is_object($b)) {
			if(get_class($a)!=get_class($b))
				return false;
			foreach($a as $key => $val) {
				if(!self::deepCompare($val,$b->$key))
					return false;
			}
			return true;
		}
		else if(is_array($a) && is_array($b)) {
			while(!is_null(key($a)) && !is_null(key($b))) {
				if (key($a)!==key($b) || !self::deepCompare(current($a),current($b)))
					return false;
				next($a); next($b);
			}
			return is_null(key($a)) && is_null(key($b));
		}
		else
			return $a===$b;
	}

	/**
	 * Remove a product from the cart
	 *
	 * @author RolandD
	 * @param array $cart_id the cart IDs to remove from the cart
	 * @access public
	 */
	public function removeProductCart($prod_id=0) {
		// Check for cart IDs
		if (empty($prod_id))
		$prod_id = vRequest::getInt('cart_virtuemart_product_id');
		unset($this->products[$prod_id]);
		if(isset($this->cartProductsData[$prod_id])){
			// hook for plugin action "remove from cart"
			if(!class_exists('vmCustomPlugin')) require(VMPATH_PLUGINLIBS.DS.'vmcustomplugin.php');
			JPluginHelper::importPlugin('vmcustom');
			$dispatcher = JDispatcher::getInstance();
			$addToCartReturnValues = $dispatcher->trigger('plgVmOnRemoveFromCart',array($this,$prod_id));
			unset($this->cartProductsData[$prod_id]);
			$this->setCartIntoSession(true);
			return true;
		} else {
			vmdebug('removeProductCart $prod_id '.$prod_id,$this->cartProductsData);
			return false;
		}
	}

	/**
	 * Update a product in the cart
	 *
	 * @author Max Milbers
	 * @param array $cart_id the cart IDs to remove from the cart
	 * @access public
	 */
	public function updateProductCart() {

		$quantities = vRequest::getInt('quantity');
		if(empty($quantities)) return false;
		$updated = false;

		foreach($quantities as $key=>$quantity){
			if (isset($this->cartProductsData[$key]) and !empty($quantity) and !isset($_POST['delete_'.$key])) {
				if($quantity!=$this->cartProductsData[$key]['quantity']){
					$this->cartProductsData[$key]['quantity'] = $quantity;
					$updated = true;
				}

			} else {
				//Todo when quantity is 0,  the product should be removed, maybe necessary to gather in array and execute delete func
				unset($this->cartProductsData[$key]);
				$updated = true;
			}
		}

		$this->setCartIntoSession(true);
		return $updated;
	}


	/**
	* Get the category ID from a product ID
	*
	* @author RolandD, Patrick Kohl
	* @access public
	* @return mixed if found the category ID else null
	* @deprecated, useless function, already done in the product model
	*
	*/
	public function getCardCategoryId($virtuemart_product_id) {
		return 0;
	}

	/**
	 * Validate the coupon code. If ok,. set it in the cart
	 * @param string $coupon_code Coupon code as entered by the user
	 * @author Oscar van Eijk
	 * TODO Change the coupon total/used in DB ?
	 * @access public
	 * @return string On error the message text, otherwise an empty string
	 */
	public function setCouponCode($coupon_code) {

		if(empty($coupon_code) or $coupon_code == vmText::_('COM_VIRTUEMART_COUPON_CODE_ENTER')) {
			$this->couponCode = '';
			return false;
		} else if($this->couponCode==$coupon_code) {
			return;
		}

		if (!class_exists('CouponHelper')) {
			require(VMPATH_SITE . DS . 'helpers' . DS . 'coupon.php');
		}

		$this->prepareCartData();
		//$this->getCartPrices();

		if(!in_array($coupon_code,$this->_triesValidateCoupon)){
			$this->_triesValidateCoupon[] = $coupon_code;
		}

		if(count($this->_triesValidateCoupon)<8){
			vmdebug('setCouponCode',$coupon_code, $this->cartPrices['salesPrice']);
			$msg = CouponHelper::ValidateCouponCode($coupon_code, $this->cartPrices['salesPrice']);;
		} else{
			$msg = vmText::_('COM_VIRTUEMART_CART_COUPON_TOO_MANY_TRIES');
		}

		if (!empty($msg)) {
			$this->_dataValidated = false;
			$this->_blockConfirm = true;
			$this->getCartPrices(true);
			$this->setCartIntoSession();
			return $msg;
		}
		$this->couponCode = $coupon_code;
		//$this->getCartPrices(true);
		$this->prepareCartData(true);
		$this->setCartIntoSession(true);
		return vmText::_('COM_VIRTUEMART_CART_COUPON_VALID');
	}

	/**
	 * Check the selected shipment data and store the info in the cart
	 * @param integer $shipment_id Shipment ID taken from the form data
	 * @author Max Milbers
	 */
	public function setShipmentMethod($force=false, $redirect=true, $virtuemart_shipmentmethod_id = null) {

		if(!isset($virtuemart_shipmentmethod_id)) $virtuemart_shipmentmethod_id = vRequest::getInt('virtuemart_shipmentmethod_id', $this->virtuemart_shipmentmethod_id);
		if($this->virtuemart_shipmentmethod_id != $virtuemart_shipmentmethod_id or (!empty($virtuemart_shipmentmethod_id) and $force)){
			//$this->_dataValidated = false;
			//Now set the shipment ID into the cart
			$this->virtuemart_shipmentmethod_id = $virtuemart_shipmentmethod_id;
			if (!class_exists('vmPSPlugin')) require(VMPATH_PLUGINLIBS . DS . 'vmpsplugin.php');
			JPluginHelper::importPlugin('vmshipment');

			//Add a hook here for other payment methods, checking the data of the choosed plugin
			$_dispatcher = JDispatcher::getInstance();
			$_retValues = $_dispatcher->trigger('plgVmOnSelectCheckShipment', array( &$this));
			$dataValid = true;
			foreach ($_retValues as $_retVal) {
				if ($_retVal === true ) {
					$this->setCartIntoSession();
					// Plugin completed successfull; nothing else to do
					break;
				} else if ($_retVal === false ) {
					if ($redirect) {
						$mainframe = JFactory::getApplication();
						$mainframe->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart&task=edit_shipment',$this->useXHTML,$this->useSSL), $_retVal);
						break;
					} else {
						return;
					}
				}
			}
			$this->setCartIntoSession();
		}
	}

	public function setPaymentMethod($force=false, $redirect=true, $virtuemart_paymentmethod_id = null) {

		if(!isset($virtuemart_paymentmethod_id)) $virtuemart_paymentmethod_id = vRequest::getInt('virtuemart_paymentmethod_id', $this->virtuemart_paymentmethod_id);
		if($this->virtuemart_paymentmethod_id != $virtuemart_paymentmethod_id or (!empty($virtuemart_paymentmethod_id) and $force)){
			//$this->_dataValidated = false;
			$this->virtuemart_paymentmethod_id = $virtuemart_paymentmethod_id;
			if(!class_exists('vmPSPlugin')) require(VMPATH_PLUGINLIBS.DS.'vmpsplugin.php');
			JPluginHelper::importPlugin('vmpayment');

			//Add a hook here for other payment methods, checking the data of the choosed plugin
			$msg = '';
			$_dispatcher = JDispatcher::getInstance();
			$_retValues = $_dispatcher->trigger('plgVmOnSelectCheckPayment', array( $this, &$msg));
			$dataValid = true;
			foreach ($_retValues as $_retVal) {
				if ($_retVal === true ) {
					$this->setCartIntoSession();
					// Plugin completed succesfull; nothing else to do
					break;
				} else if ($_retVal === false ) {
					if ($redirect) {
						$app = JFactory::getApplication();
						$app->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart&task=editpayment',$this->useXHTML,$this->useSSL), $msg);
						break;
					} else {
						return;
					}
				}
			}
			$this->setCartIntoSession();
		}

	}

	function confirmDone() {

		//Check if data has changed meanwhile
		$cHash = $this->getCartHash();
		if($cHash != $this->_dataValidated){
			$this->_dataValidated = false;
			$app = JFactory::getApplication();
			$app->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart'.$this->getLayoutUrlString(), FALSE), vmText::_('COM_VIRTUEMART_CART_CHECKOUT_DATA_CHANGED'));
		}

		//Final check
		$this->checkoutData(false);
		if ($this->_dataValidated == $cHash) {
			$this->_confirmDone = true;
			$this->orderDetails = 0;
			$this->confirmedOrder();
		} else {
			$this->_dataValidated = false;
			$this->_confirmDone = false;
			$app = JFactory::getApplication();
			$app->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart'.$this->getLayoutUrlString(), FALSE), vmText::_('COM_VIRTUEMART_CART_CHECKOUT_DATA_NOT_VALID'));
		}
	}

	private function redirecter($relUrl,$redirectMsg){

		$this->_dataValidated = false;
		$app = JFactory::getApplication();
		if($this->_redirect and !$this->_redirected and !$this->_redirect_disabled){
			$this->_redirected = true;
			$this->setCartIntoSession(true);
			$app->redirect(JRoute::_($relUrl,$this->useXHTML,$this->useSSL), $redirectMsg);
			return true;
		} else {
			$this->_redirected = false;
			$this->_inCheckOut = false;
			$this->setCartIntoSession(true);
			return false;
		}
	}

	public function getLayoutUrlString(){
		$layoutName = vRequest::getCmd('layout', 'default');
		if(!empty($layoutName) and $layoutName!='default'){
			return '&layout='.$layoutName;
		} else {
			return '';
		}
	}

	public function checkoutData($redirect = true) {

		if($this->_redirected){
			$this->_redirect = false;
		} else {
			$this->_redirect = $redirect;
		}

		$layoutName = $this->getLayoutUrlString();

		$this->_inCheckOut = true;
		//This prevents that people checkout twice
		$this->setCartIntoSession(false,true);

		// Check if a minimun purchase value is set
		if (($redirectMsg = $this->checkPurchaseValue()) != null) {
			$this->_inCheckOut = false;
			return $this->redirecter('index.php?option=com_virtuemart&view=cart'.$layoutName , $redirectMsg);
		}

		$validUserDataBT = self::validateUserData();
		if ($validUserDataBT!==true) {	//Important, we can have as result -1,false and true.
			return $this->redirecter('index.php?option=com_virtuemart&view=user&task=editaddresscart&addrtype=BT' , '');
		}

		$currentUser = JFactory::getUser();
		if(!empty($this->STsameAsBT) or (!$currentUser->guest and empty($this->selected_shipto))){	//Guest
			$this->ST = $this->BT;
		} else {
			if ($this->selected_shipto >0 ) {
				$userModel = VmModel::getModel('user');
				$stData = $userModel->getUserAddressList($currentUser->id, 'ST', $this->selected_shipto);

				if(isset($stData[0]) and is_object($stData[0])){
					$stData = get_object_vars($stData[0]);
					if($this->validateUserData('ST', $stData)>0){
						$this->ST = $stData;
					}
				} else {
					$this->selected_shipto = 0;
					$this->ST = $this->BT;
				}
			}

			//Only when there is an ST data, test if all necessary fields are filled
			$validUserDataST = self::validateUserData('ST');
			if ($validUserDataST!==true) {
				return $this->redirecter('index.php?option=com_virtuemart&view=user&task=editaddresscart&addrtype=ST' , '');
			}
		}

		$usersConfig = JComponentHelper::getParams( 'com_users' );
		$useractivation = $usersConfig->get( 'useractivation' );
		if ($currentUser ->block) {
			if($useractivation!=1){
				$redirectMsg = vmText::_('JERROR_NOLOGIN_BLOCKED');
				return $this->redirecter('index.php?option=com_virtuemart&view=user&task=editaddresscart&addrtype=BT' , $redirectMsg);
			}
		}

		if(VmConfig::get('oncheckout_only_registered',0)) {
			if(empty($currentUser->id)) {
				$redirectMsg = vmText::_('COM_VIRTUEMART_CART_ONLY_REGISTERED');
				return $this->redirecter('index.php?option=com_virtuemart&view=user&task=editaddresscart&addrtype=BT' , $redirectMsg);
			}
		}

		// Test Coupon
		if (!empty($this->couponCode)) {
			if (!class_exists('CouponHelper')) {
				require(VMPATH_SITE . DS . 'helpers' . DS . 'coupon.php');
			}

			if(!in_array($this->couponCode,$this->_triesValidateCoupon)){
				$this->_triesValidateCoupon[] = $this->couponCode;
			}
			if(count($this->_triesValidateCoupon)<8){
				$redirectMsg = CouponHelper::ValidateCouponCode($this->couponCode, $this->cartPrices['salesPrice']);
			} else{
				$redirectMsg = vmText::_('COM_VIRTUEMART_CART_COUPON_TOO_MANY_TRIES');
			}

			if (!empty($redirectMsg)) {
				$this->couponCode = '';
				$this->_inCheckOut = false;
				$this->setCartIntoSession();
				return $this->redirecter('index.php?option=com_virtuemart&view=cart'.$layoutName , $redirectMsg);
			}
		}
		$redirectMsg = '';

		//Test Shipment and show shipment plugin
		if (empty($this->virtuemart_shipmentmethod_id)) {
			return $this->redirecter('index.php?option=com_virtuemart&view=cart&task=edit_shipment' , $redirectMsg);
		} else {
			if (!class_exists('vmPSPlugin')) require(VMPATH_PLUGINLIBS . DS . 'vmpsplugin.php');
			JPluginHelper::importPlugin('vmshipment');
			//Add a hook here for other shipment methods, checking the data of the choosed plugin
			$dispatcher = JDispatcher::getInstance();
			$retValues = $dispatcher->trigger('plgVmOnCheckoutCheckDataShipment', array(  $this));

			foreach ($retValues as $retVal) {
				if ($retVal === true) {
					break; // Plugin completed succesfull; nothing else to do
				} elseif ($retVal === false) {
					// Missing data, ask for it (again)
					return $this->redirecter('index.php?option=com_virtuemart&view=cart&task=edit_shipment' , $redirectMsg);
					// 	NOTE: inactive plugins will always return null, so that value cannot be used for anything else!
				}
			}
		}

		//Test Payment and show payment plugin
		if($this->cartPrices['salesPrice']>0.0){
			if (empty($this->virtuemart_paymentmethod_id)) {
				return $this->redirecter('index.php?option=com_virtuemart&view=cart&task=editpayment' , $redirectMsg);
			} else {
				if(!class_exists('vmPSPlugin')) require(VMPATH_PLUGINLIBS.DS.'vmpsplugin.php');
				JPluginHelper::importPlugin('vmpayment');
				//Add a hook here for other payment methods, checking the data of the choosed plugin
				$dispatcher = JDispatcher::getInstance();
				$retValues = $dispatcher->trigger('plgVmOnCheckoutCheckDataPayment', array( $this));

				foreach ($retValues as $retVal) {
					if ($retVal === true) {
						break; // Plugin completed succesful; nothing else to do
					} elseif ($retVal === false) {
						// Missing data, ask for it (again)
						return $this->redirecter('index.php?option=com_virtuemart&view=cart&task=editpayment' , $redirectMsg);
						// 	NOTE: inactive plugins will always return null, so that value cannot be used for anything else!
					}
				}
			}
		}

		$validUserDataCart = self::validateUserData('cartfields',$this->cartfields,$this->_redirect);

		if($validUserDataCart!==true){
			if($this->_redirect){
				$this->_inCheckOut = false;
				$redirectMsg = null;
				return $this->redirecter('index.php?option=com_virtuemart&view=cart'.$layoutName , $redirectMsg);
			}
			$this->_blockConfirm = true;
		} else {
			//Atm a bit dirty. We store this information in the BT order_userinfo, so we merge it here, it gives also
			//the advantage, that plugins can easily deal with it.
			//$this->BT = array_merge((array)$this->BT,(array)$this->cartfields);
		}

		//Either we use here $this->_redirect, or we redirect always directly, atm we check the boolean _redirect
		if (count($this->cartProductsData) == 0) {
			$this->_inCheckOut = false;
			return $this->redirecter('index.php?option=com_virtuemart&view=cart', vmText::_('COM_VIRTUEMART_CART_NO_PRODUCT'));
		}

		//Show cart and checkout data overview
		if($this->_redirected){
			$this->_redirected = false;
		} else {
			$this->_inCheckOut = false;
		}

		if($this->_blockConfirm){
			$this->_dataValidated = false;
			$this->_inCheckOut = false;
			$this->setCartIntoSession(true);
			return $this->redirecter('index.php?option=com_virtuemart&view=cart'.$layoutName,'');
		} else {
			$this->_dataValidated = $this->getCartHash();

			$this->setCartIntoSession(true);
			if ($this->_redirect) {
				$app = JFactory::getApplication();
				$app->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart'.$layoutName, FALSE), vmText::_('COM_VIRTUEMART_CART_CHECKOUT_DONE_CONFIRM_ORDER'));
			} else {
				return true;
			}
		}
	}

	/**
	 * Check if a minimum purchase value for this order has been set, and if so, if the current
	 * value is equal or hight than that value.
	 * @author Oscar van Eijk
	 * @return An error message when a minimum value was set that was not eached, null otherwise
	 */
	private function checkPurchaseValue() {

		$this->prepareVendor();
		if ($this->vendor->vendor_min_pov > 0) {
			$this->getCartPrices();
			if ($this->cartPrices['salesPrice'] < $this->vendor->vendor_min_pov) {
				if (!class_exists('CurrencyDisplay'))
				require(VMPATH_ADMIN . DS . 'helpers' . DS . 'currencydisplay.php');
				$currency = CurrencyDisplay::getInstance();
				return vmText::sprintf('COM_VIRTUEMART_CART_MIN_PURCHASE', $currency->priceDisplay($this->vendor->vendor_min_pov));
			}
		}
		return null;
	}

	/**
	 * Test userdata if valid
	 *
	 * @author Max Milbers
	 * @param String if BT or ST
	 * @param Object If given, an object with data address data that must be formatted to an array
	 * @return redirectMsg, if there is a redirectMsg, the redirect should be executed after
	 */
	public function validateUserData($type='BT', $obj = null,$redirect = false) {

		$usersModel = VmModel::getModel('user');
		if($obj==null){
			return $usersModel->validateUserData($this->{$type},$type,$redirect);
		} else {
			return $usersModel->validateUserData($obj,$type,$redirect);
		}
	}

	/**
	 * This function is called, when the order is confirmed by the shopper.
	 *
	 * Here are the last checks done by payment plugins.
	 * The mails are created and send to vendor and shopper
	 * will show the orderdone page (thank you page)
	 *
	 */
	function confirmedOrder() {

		//Just to prevent direct call
		if ($this->_dataValidated and $this->_confirmDone and !$this->_inCheckOut) {

			if($this->_inConfirm) return false;

			//We set this in the trigger of the plugin. so old plugins keep the old behaviour
			$orderModel = VmModel::getModel('orders');

			if(!$this->virtuemart_order_id){
				$this->virtuemart_order_id = $orderModel->createOrderFromCart($this);
				if (!$this->virtuemart_order_id) {
					$mainframe = JFactory::getApplication();
					//vmError('No order created '.$orderModel->getError());
					$mainframe->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart', FALSE) );
				}
			}

			//$orderDetails = $orderModel->getMyOrderDetails($this->virtuemart_order_id,$this->order_number,$this->order_pass);
			$orderDetails = $orderModel->getOrder($this->virtuemart_order_id);

			if(!$orderDetails or empty($orderDetails['details'])){
				echo vmText::_('COM_VIRTUEMART_CART_ORDER_NOTFOUND');
				return;
			}

			$dispatcher = JDispatcher::getInstance();

			JPluginHelper::importPlugin('vmcalculation');
			JPluginHelper::importPlugin('vmcustom');
			JPluginHelper::importPlugin('vmshipment');
			JPluginHelper::importPlugin('vmpayment');

			$this->orderDetails = $orderDetails;

			$returnValues = $dispatcher->trigger('plgVmConfirmedOrder', array($this, $orderDetails));

			if( $this->_confirmDone ) {
				$lifetime = (24 * 60 * 60) * 180; //180 days
				if(!class_exists('vmCrypt')){
					require(VMPATH_ADMIN.DS.'helpers'.DS.'vmcrypt.php');
				}

				if(!$this->customer_notified ) {
					$orderModel->notifyCustomer($this->virtuemart_order_id, $orderDetails);
				}
			}

			// may be redirect is done by the payment plugin (eg: paypal)
			// if payment plugin echos a form, false = nothing happen, true= echo form ,
			// 1 = cart should be emptied, 0 cart should not be emptied
			$this->setCartIntoSession(false,true);

			return $this->virtuemart_order_id;
		}
	}

	public function getCartHash(){

		return md5(serialize($this->cartProductsData) .
		serialize($this->BT).
		($this->STsameAsBT) ? '': serialize($this->ST) .
		$this->STsameAsBT .
		$this->order_language.
		$this->selected_shipto.
		serialize($this->cartPrices).
		$this->virtuemart_shipmentmethod_id .
		(!empty($this->cartData['shipmentName']) ? $this->cartData['shipmentName'] : '') .
		$this->virtuemart_paymentmethod_id .
		(!empty($this->cartData['paymentName']) ? $this->cartData['paymentName'] : '') .
		$this->customer_number );
	}
	/**
	 * emptyCart: Used for payment handling.
	 *
	 * @author Valerie Cartan Isaksen
	 *
	 */
	public function emptyCart(){
		self::emptyCartValues($this);
	}

	/**
	 * emptyCart: Used for payment handling.
	 *
	 * @author Valerie Cartan Isaksen
	 *
	 */
	static public function emptyCartValues(&$cart, $session = true){

		//We delete the old stuff
		$cart->products = array();
		$cart->cartProductsData = array();
		$cart->cartData = array();
		$cart->cartPrices = array();
		$cart->cartfields = array();
		$cart->_inCheckOut = false;
		$cart->_dataValidated = false;
		$cart->_confirmDone = false;
		$cart->couponCode = '';
		$cart->order_language = '';
		$cart->virtuemart_shipmentmethod_id = 0; //OSP 2012-03-14
		$cart->virtuemart_paymentmethod_id = 0;
		$cart->order_number=null;
		$cart->_fromCart = false;
		$cart->_inConfirm = false;
		$cart->totalProduct=false;
		$cart->productsQuantity=array();
		$cart->virtuemart_order_id = null;
		$cart->layout = VmConfig::get('cartlayout','default');
		if($session){
			$cart->deleteCart();
			$cart->setCartIntoSession(false,true);
		}
	}

	function saveCartFieldsInCart(){

		if (!class_exists('VirtueMartModelUserfields'))
			require(VMPATH_ADMIN . DS . 'models' . DS . 'userfields.php');
		$userFieldsModel = VmModel::getModel('userfields');

		$cartFields = $userFieldsModel->getUserFields(
			'cart'
			, array('delimiters' => true, 'captcha' => true, 'system' => false)
			, array('delimiter_userinfo', 'name','username', 'password', 'password2', 'address_type_name', 'address_type', 'user_is_vendor', 'agreed'));

		foreach ($cartFields as $fld) {
			if(!empty($fld->name)){
				$name = $fld->name;

				if($fld->type=='checkbox'){
					$tmp = vRequest::getInt($name,0);
				} else {
					$tmp = vRequest::getString($name,null);
				}

				if(isset($tmp)){
					if(!empty($tmp)){
						if(is_array($tmp)){
							$tmp = implode("|*|",$tmp);
						}
						if (version_compare(phpversion(), '5.4.0', '<')) {
							// php version isn't high enough
							$tmp = htmlspecialchars ($tmp,ENT_QUOTES,'UTF-8',false);	//ENT_SUBSTITUTE only for php5.4 and higher
						} else {
							$tmp = htmlspecialchars ($tmp,ENT_QUOTES|ENT_SUBSTITUTE,'UTF-8',false);
						}

						$tmp = (string)preg_replace('#on[a-z](.+?)\)#si','',$tmp);//replace start of script onclick() onload()...
					}

					$this->cartfields[$name] = $tmp;
					//vmdebug('Store $this->cartfields[$name] '.$name.' '.$tmp);
				}

			}
		}
		$this->BT = array_merge((array)$this->BT,(array)$this->cartfields);
		$this->setCartIntoSession();
	}

	function saveAddressInCart($data, $type, $putIntoSession = true,$prefix='') {

		// VirtueMartModelUserfields::getUserFields() won't work
		if(!class_exists('VirtueMartModelUserfields')) require(VMPATH_ADMIN.DS.'models'.DS.'userfields.php' );
		$userFieldsModel = VmModel::getModel('userfields');

		if ($type == 'STaddress' or $type == 'BTaddress'){
			vmTrace('STaddress found, seek and destroy');
		}
		$prepareUserFields = $userFieldsModel->getUserFieldsFor('cart',$type);

		if(!is_array($data)){
			$data = get_object_vars($data);
		}

		if ($type =='ST') {
			$this->STsameAsBT = 0;
		} else { // BT
			if(empty($data['email'])){
				$jUser = JFactory::getUser();
				$address['email'] = $jUser->email;
			}
		}

		$address = array();
		if(!class_exists('vmFilter'))require(VMPATH_ADMIN.DS.'helpers'.DS.'vmfilter.php');
		foreach ($prepareUserFields as $fld) {
			if(!empty($fld->name)){
				$name = $fld->name;

				if(!isset($data[$prefix.$name])){
					$tmp = vRequest::getString($prefix.$name,false);
					if($tmp){
						$data[$prefix.$name] = $tmp;
					}
					else if($fld->required and isset($this->{$type}[$name])){	//Why we have this fallback to the already stored value?
						$data[$prefix.$name] = $this->{$type}[$name];
					}
					/*if($fld->type=='text'){
					} else {
						vmdebug('my fld ',$fld);
					}*/
				}

				if(isset($data[$prefix.$name])){
					if(!empty($data[$prefix.$name])){
						if(is_array($data[$prefix.$name])){
							foreach($data[$prefix.$name] as $k=>$v){
								$data[$prefix.$name][$k] = self::filterCartInput($v);
							}
						} else {
							$data[$prefix.$name] = self::filterCartInput($data[$prefix.$name]);
						}
					}
					$address[$name] = $data[$prefix.$name];
				} else {
					//vmdebug('Data not found for type '.$type.' and name '.$prefix.$name.' ');
				}
			}
		}

		//dont store passwords in the session
		unset($address['password']);
		unset($address['password2']);

		$this->{$type} = $address;

		if($putIntoSession){
			$this->setCartIntoSession(true);
		}

	}

	private function filterCartInput($v){
		$v = vmFilter::hl( $v,array('deny_attribute'=>'*'));
		//to strong
		/* $value = preg_replace('@<[\/\!]*?[^<>]*?>@si','',$value);//remove all html tags  */
		//lets use instead
		$v = JComponentHelper::filterText($v);
		$v = (string)preg_replace('#on[a-z](.+?)\)#si','',$v);//replace start of script onclick() onload()...
		$v =  str_replace(array('"',"\t","\n","\r","\0","\x0B"),' ',trim($v));
		return (string)preg_replace('#^\'#si','',$v);
	}

	/**
	 * Returns ST address considering the set options, with fallback
	 * @author Max Milbers
	 */
	public function getST($name=0,$FBBT=true){

		$addr = $this->ST;

		if($this->STsameAsBT == 0){
			if($FBBT){
				if($name!==0){
					if(!isset($this->ST[$name])){
						$addr = $this->BT;
					}
				} else if($this->ST == 0){
					vmdebug('getST ST=0, use BT');
					$addr = $this->BT;
				}
			}
		} else {
			//vmdebug('getST STsameAsBT is set, use BT');
			$addr = $this->BT;
		}

		if($name!==0){
			return isset($addr[$name]) ? $addr[$name] : '';
		} else {
			return $addr!==0 ? $addr : array();
		}

	}

	/**
	 * @author Valérie Isaksen, Max Milbers
	 * @param $type
	 * @return bool
	 */
	function checkAutomaticSelectedPlug($type){

		$vm_method_name = 'virtuemart_'.$type.'method_id';
		if (count($this->products) == 0  or  VmConfig::get('set_automatic_'.$type,'0')=='-1') {
			return false;
		}

		if (!class_exists('vmPSPlugin')) {
			require(VMPATH_PLUGINLIBS . DS . 'vmpsplugin.php');
		}

		$counter=0;
		$dispatcher = JDispatcher::getInstance();
		$returnValues = $dispatcher->trigger('plgVmOnCheckAutomaticSelected'.ucfirst($type), array(  $this,$this->cartPrices, &$counter));

		$nb = 0;
		$method_id = 0;
		foreach ($returnValues as $returnValue) {
			if ( isset($returnValue )) {
				$nb ++;
				if ($returnValue) $method_id = $returnValue;
			}
		}

		$vm_autoSelected_name = 'automaticSelected'.ucfirst($type);
		if ($nb==1 && $method_id) {
			$this->$vm_method_name = $method_id;
			$this->$vm_autoSelected_name=true;
			$this->setCartIntoSession();
			//vmdebug('FOUND automatic SELECTED '.$type.' !!',$this->$vm_method_name);
			return true;
		} else {
			$this->$vm_autoSelected_name=false;
			return false;
		}

	}

	/*
	 * CheckAutomaticSelectedShipment
	* If only one shipment is available for this amount, then automatically select it
	* @deprecated
	* @author Valérie Isaksen
	*/
	function CheckAutomaticSelectedShipment() {
		return $this->checkAutomaticSelectedPlug('shipment');
	}

	/*
	 * CheckAutomaticSelectedPayment
	* If only one payment is available for this amount, then automatically select it
	* @deprecated
	* @author Valérie Isaksen
	*/
	function CheckAutomaticSelectedPayment() {
		return $this->checkAutomaticSelectedPlug('payment');
	}

	/**
	 * Function Description
	 *
	 * @author Max Milbers
	 * @access public
	 * @param array $cart the cart to get the products for
	 * @return array of product objects
	 */

	public function getCartPrices($force=false) {

		if(empty($this->cartPrices) or !$this->_calculated or $force){
			if(!class_exists('calculationHelper')) require(VMPATH_ADMIN.DS.'helpers'.DS.'calculationh.php');
			$calculator = calculationHelper::getInstance();

			$this->pricesCurrency = $calculator->_currencyDisplay->getCurrencyForDisplay();

			$calculator->getCheckoutPrices($this);

			//Fallback for old extensions
			$this->pricesUnformatted = $this->cartPrices;

			//We must do this here, otherwise if we have a product more than one time in the cart
			//it has always the same price
			foreach($this->products as $k => $product){
				$this->products[$k]->prices = &$product->allPrices[$product->selectedPrice];
			}
			$this->_calculated = true;
			//$this->setCartIntoSession();
		}
		return $this->cartPrices;
	}

	function prepareVendor(){
		if(empty($this->vendor)){
			$vendorModel = VmModel::getModel('vendor');
			$this->vendor = $vendorModel->getVendor($this->vendorId);
			$vendorModel->addImages($this->vendor,1);
			if (VmConfig::get('enable_content_plugin', 0)) {
				shopFunctionsF::triggerContentPlugin($this->vendor, 'vendor','vendor_terms_of_service');
			}
		}
	}

	function prepareCartData($force=true){

		//$this->totalProduct = 0;
		if(count($this->products) != count($this->cartProductsData) or $this->_productAdded){
			$productsModel = VmModel::getModel('product');
			$this->totalProduct = 0;
			$this->productsQuantity = array();
			$customFieldsModel = VmModel::getModel('customfields');
			foreach($this->cartProductsData as $k =>&$productdata){
				$productdata = (array)$productdata;

				if(isset($productdata['virtuemart_product_id'])){
					if(empty($productdata['virtuemart_product_id']) or empty($productdata['quantity'])){
						unset($this->cartProductsData[$k]);
						continue;
					}
					$productdata['quantity'] = (int)$productdata['quantity'];
					//Important, must not use calculation, would lead to wrong prices, because the full cart is not know yet.
					$productTemp = $productsModel->getProduct($productdata['virtuemart_product_id'],TRUE,FALSE,TRUE,$productdata['quantity']);

					if(empty($productTemp->virtuemart_product_id)){
						vmError('prepareCartData virtuemart_product_id is empty','The product is no longer available');
						unset($this->cartProductsData[$k]);
						continue;
					}

					//Very important! must be cloned, else all products with same id get the same productCustomData due the product cache
					$productTemp->modificatorSum = null;
					$product = clone($productTemp);

					$productdata['virtuemart_product_id'] = (int)$productdata['virtuemart_product_id'];

					$product -> customProductData = $productdata['customProductData'];
					$product -> quantity = $productdata['quantity'];

					// No full link because Mail want absolute path and in shop is better relative path
					$product->url = JRoute::_('index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id='.$product->virtuemart_product_id.'&virtuemart_category_id='.$product->virtuemart_category_id);//JHtml::link($url, $product->product_name);
					$product->cart_item_id = $k ;

					if ( VmConfig::get('oncheckout_show_images')){
						$productsModel->addImages($product,1);
					}

					$product->customfields = $customFieldsModel->getCustomEmbeddedProductCustomFields($product->allIds,0,1);

					$enough = $this->checkForQuantities($product,$product -> quantity);

					if($product->quantity<=0){
						unset($this->cartProductsData[$k]);
						continue;
					}
					$this->products[$k] = $product;
					$this->totalProduct += $product -> quantity;
					$productdata['quantity'] = $product -> quantity;

					if(isset($this->productsQuantity[$product->virtuemart_product_id])){
						$this->productsQuantity[$product->virtuemart_product_id] += $product -> quantity;
					} else {
						$this->productsQuantity[$product->virtuemart_product_id] = $product -> quantity;
					}

					$product = null;
				} else {
					unset($this->cartProductsData[$k]);
					vmError('prepareCartData $productdata[virtuemart_product_id] was empty');
				}
			}
			$this->setCartIntoSession();
		} else {

		}

		$this->getCartPrices($force);

		if(!class_exists('vmPSPlugin')) require(VMPATH_PLUGINLIBS.DS.'vmpsplugin.php');
		JPluginHelper::importPlugin('vmpayment');
		$dispatcher = JDispatcher::getInstance();
		$returnValues = $dispatcher->trigger('plgVmgetPaymentCurrency', array( $this->virtuemart_paymentmethod_id, &$this->paymentCurrency));

		$this->_productAdded = false;
		return $this->cartData ;

	}

	/*
	 * Trigger to place Coupon, payment, shipment advertisement on the cart
	 */
	public function getCheckoutAdvertise() {

		if(!$this->cartAdv){
			$this->cartAdv=array();
			JPluginHelper::importPlugin('vmextended');
			JPluginHelper::importPlugin('vmcoupon');
			JPluginHelper::importPlugin('vmshipment');
			JPluginHelper::importPlugin('vmpayment');
			JPluginHelper::importPlugin('vmuserfield');
			$dispatcher = JDispatcher::getInstance();
			$returnValues = $dispatcher->trigger('plgVmOnCheckoutAdvertise', array( $this, &$this->cartAdv));
		}
		return $this->cartAdv;
	}

	/** Checks if the quantity is correct
	 *
	 * @author Max Milbers
	 */
	private function checkForQuantities($product, &$quantity=0) {

		$dispatcher = JDispatcher::getInstance();
		JPluginHelper::importPlugin('vmcustom');
		// return null to proceed with further VM rules
		// return true to not validate the quantity with OPC or VM
		// return false to return errorMsg
		//if to allow to adjust the current quantity
		$adjustQ = false; 
		$errorMsg = ''; 
		$retValues = $dispatcher->trigger('plgVmOnCheckoutCheckStock', array(  &$this, &$product, &$quantity, &$errorMsg, &$adjustQ));
		
		foreach ($retValues as $v) {
			if ($v === false) {
				vmInfo($errorMsg,$product->product_name);
				return false; 
			}
			if ($v === true) {
				return true; 
			}
		}
	
		$stockhandle = VmConfig::get('stockhandle_products', false) && $product->product_stockhandle ? $product->product_stockhandle : VmConfig::get('stockhandle','none');
		$mainframe = JFactory::getApplication();
		// Check for a valid quantity
		if (!is_numeric( $quantity)) {
			$errorMsg = vmText::_('COM_VIRTUEMART_CART_ERROR_NO_VALID_QUANTITY', false);
			vmInfo($errorMsg,$product->product_name);
			return false;
		}
		// Check for negative quantity
		if ($quantity < 1) {
			$errorMsg = vmText::_('COM_VIRTUEMART_CART_ERROR_NO_VALID_QUANTITY', false);
			vmInfo($errorMsg,$product->product_name);
			return false;
		}

		// Check to see if checking stock quantity
		if ($stockhandle!='none' && $stockhandle!='risetime') {

			$productsleft = $product->product_in_stock - $product->product_ordered;

			// TODO $productsleft = $product->product_in_stock - $product->product_ordered - $quantityincart ;
			if ($quantity > $productsleft ){
				vmdebug('my products left '.$productsleft.' and my quantity '.$quantity);
				if($productsleft>0){
					$quantity = $productsleft;
					$product->errorMsg = vmText::sprintf('COM_VIRTUEMART_CART_PRODUCT_OUT_OF_QUANTITY',$product->product_name,$quantity);
					vmError($product->errorMsg);
				} else {
					$quantity = 0;
					$product->errorMsg = vmText::_('COM_VIRTUEMART_CART_PRODUCT_OUT_OF_STOCK');
					vmError($product->errorMsg); // Private error retrieved with getError is used only by addJS, so only the latest is fine
					// todo better key string
					vmInfo($product->errorMsg. ' '.$product->product_name);
					return false;
				}
			}
		}

		// Check for the minimum and maximum quantities
		$min = $product->min_order_level;
		if ($min != 0 && $quantity < $min){
			$quantity = $min;
			$errorMsg = vmText::sprintf('COM_VIRTUEMART_CART_MIN_ORDER', $min, $product->product_name);
			vmInfo($errorMsg,$product->product_name);
			return false;
		}

		$max = $product->max_order_level;
		if ($max != 0 && $quantity > $max) {
			$quantity = $max;
			$errorMsg = vmText::sprintf('COM_VIRTUEMART_CART_MAX_ORDER', $max, $product->product_name);
			vmInfo($errorMsg,$product->product_name);
			return false;
		}

		$step = $product->step_order_level;
		if ($step != 0 && ($quantity%$step)!= 0) {
			$quantity = $quantity + ($quantity%$step);
			$errorMsg = vmText::sprintf('COM_VIRTUEMART_CART_STEP_ORDER', $step);
			vmInfo($errorMsg,$product->product_name);
			return false;
		}
		return true;
	}

	// Render the code for Ajax Cart
	function prepareAjaxData($withProductImages=false){

		$this->prepareCartData(false);
		$data = new stdClass();
		$data->products = array();
		$data->totalProduct = 0;

		//OSP when prices removed needed to format billTotal for AJAX
		if (!class_exists('CurrencyDisplay'))
			require(VMPATH_ADMIN . DS . 'helpers' . DS . 'currencydisplay.php');
		$currencyDisplay = CurrencyDisplay::getInstance();

		foreach ($this->products as $i=>$product){

			//Create product URL
			$url = JRoute::_('index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id='.$product->virtuemart_product_id.'&virtuemart_category_id='.$product->virtuemart_category_id, FALSE);
			$data->products[$i]['product_name'] = JHtml::link($url, $product->product_name);

			if(!class_exists('VirtueMartModelCustomfields'))require(VMPATH_ADMIN.DS.'models'.DS.'customfields.php');

			//  custom product fields display for cart
			$data->products[$i]['customProductData'] = VirtueMartModelCustomfields::CustomsFieldCartModDisplay($product);
			$data->products[$i]['product_sku'] = $product->product_sku;
			$data->products[$i]['prices'] = $currencyDisplay->priceDisplay( $product->allPrices[$product->selectedPrice]['subtotal']);
			if($withProductImages and !empty($product->images[0])) $data->products[$i]['image']= $product->images[0]->displayMediaThumb ('', FALSE);

			// other possible option to use for display
			$data->products[$i]['subtotal'] = $currencyDisplay->priceDisplay($product->allPrices[$product->selectedPrice]['subtotal']);
			$data->products[$i]['subtotal_tax_amount'] = $currencyDisplay->priceDisplay($product->allPrices[$product->selectedPrice]['subtotal_tax_amount']);
			$data->products[$i]['subtotal_discount'] = $currencyDisplay->priceDisplay( $product->allPrices[$product->selectedPrice]['subtotal_discount']);
			$data->products[$i]['subtotal_with_tax'] = $currencyDisplay->priceDisplay($product->allPrices[$product->selectedPrice]['subtotal_with_tax']);

			// UPDATE CART / DELETE FROM CART
			$data->products[$i]['quantity'] = $product->quantity;
			$data->totalProduct += $product->quantity ;

		}

		if(empty($this->cartPrices['billTotal']) or $this->cartPrices['billTotal'] < 0){
			$this->cartPrices['billTotal'] = 0.0;
		}

		$data->billTotal = $currencyDisplay->priceDisplay( $this->cartPrices['billTotal'] );
		$data->billTotal_tax_amount = $currencyDisplay->priceDisplay( $this->cartPrices['taxAmount'] );
		$data->billTotal_net = $currencyDisplay->priceDisplay( $this->cartPrices['priceWithoutTax'] );
		$data->billTotal_discounted_net = $currencyDisplay->priceDisplay( $this->cartPrices['discountedPriceWithoutTax'] );
		//end
		$data->dataValidated = $this->_dataValidated ;

		if ($data->totalProduct>1) $data->totalProductTxt = vmText::sprintf('COM_VIRTUEMART_CART_X_PRODUCTS', $data->totalProduct);
		else if ($data->totalProduct == 1) $data->totalProductTxt = vmText::_('COM_VIRTUEMART_CART_ONE_PRODUCT');
		else $data->totalProductTxt = vmText::_('COM_VIRTUEMART_EMPTY_CART');
		if (false && $data->dataValidated == true) {
			$taskRoute = '&task=confirm';
			$linkName = vmText::_('COM_VIRTUEMART_ORDER_CONFIRM_MNU');
		} else {
			$taskRoute = '';
			$linkName = vmText::_('COM_VIRTUEMART_CART_SHOW');
		}

		$data->cart_show = '<a style ="float:right;" href="'.JRoute::_("index.php?option=com_virtuemart&view=cart".$taskRoute,$this->useSSL).'" rel="nofollow" >'.$linkName.'</a>';
		$data->billTotal = vmText::sprintf('COM_VIRTUEMART_CART_TOTALP',$data->billTotal);

		return $data ;
	}
}
