Mini Cart quantity/price calculation error

if(!empty($rows)){
/*			$ids = array();

			....

$currencyClass->getListingPrices($rows,$pageInfo->zone_id,$pageInfo->currency_id,$pageInfo->filter->price_display_type); */
}

	function cart(){
		$module = hikashop_get('helper.module');
		$module->initialize($this);

		if(!HIKASHOP_PHP5) {
			$app =& JFactory::getApplication();
			$database =& JFactory::getDBO();
			$config =& hikashop_config();
		} else {
			$app = JFactory::getApplication();
			$database = JFactory::getDBO();
			$config = hikashop_config();
		}
		$currencyClass = hikashop_get('class.currency');
		$class = hikashop_get('class.cart');
		$productClass = hikashop_get('class.product');
		$main_currency = (int)$config->get('main_currency',1);
		$currency_id = hikashop_getCurrency();
		//$currency_id = $app->getUserStateFromRequest( HIKASHOP_COMPONENT.'.currency_id', 'currency_id', $main_currency, 'int' );
		if($config->get('tax_zone_type','shipping')=='billing'){
			$zone_id = hikashop_getZone('billing');
		}else{
			$zone_id = hikashop_getZone('shipping');
		}
		$discount_before_tax = (int)$config->get('discount_before_tax',0);

		$cart_type = $this->params->get('cart_type','cart');
		$cart_id =$app->getUserState( HIKASHOP_COMPONENT.'.'.$cart_type.'_id', 0, 'int' );
		//$rows = $class->get($cart_id,false,$cart_type);

		$full = $class->loadFullCart(true);
		$rows = $full->products;

		$total = new stdClass();
		/*
		if(!empty($rows)){
			//add variants inside main products as reference for tax calculus
			$variants = false;
			$ids = array();
			foreach($rows as $k => $row){
				$ids[]=$row->product_id;
				if($row->product_type=='variant'){
					$variants = true;
					foreach($rows as $k2 => $row2){
						if($row->product_parent_id==$row2->product_id){
							$rows[$k2]->variants[]=&$rows[$k];
						//	break;
						}
					}
				}
			}

			if($variants){
				$this->selected_variant_id = 0;
				//add the characteristics infos
				$query = 'SELECT a.*,b.* FROM '.hikashop_table('variant').' AS a LEFT JOIN '.hikashop_table('characteristic').' AS b ON a.variant_characteristic_id=b.characteristic_id WHERE a.variant_product_id IN ('.implode(',',$ids).') ORDER BY a.ordering ASC,b.characteristic_value ASC';
				$database->setQuery($query);
				$characteristics = $database->loadObjectList();
				if(!empty($characteristics)){
					foreach($rows as $k => $row){
						$element =& $rows[$k];
						$product_id=$row->product_id;
						if($row->product_type=='variant'){
							continue;
						}
						$mainCharacteristics = array();
						foreach($characteristics as $characteristic){
							if($product_id==$characteristic->variant_product_id){
								$mainCharacteristics[$product_id][$characteristic->characteristic_parent_id][$characteristic->characteristic_id]=$characteristic;
							}
							if(!empty($element->options)){
								foreach($element->options as $k => $optionElement){
									if($optionElement->product_id==$characteristic->variant_product_id){
										$mainCharacteristics[$optionElement->product_id][$characteristic->characteristic_parent_id][$characteristic->characteristic_id]=$characteristic;
									}
								}
							}
						}
						if(!empty($element->variants)){
							$this->addCharacteristics($element,$mainCharacteristics,$characteristics);
						}

						if(!empty($element->options)){
							foreach($element->options as $k => $optionElement){
								if(!empty($optionElement->variants)){
									$this->addCharacteristics($element->options[$k],$mainCharacteristics,$characteristics);
								}
							}
						}
					}
				}
			}

			//calculate prices
			$product_quantities = array();
			foreach($rows as $row){
				if(empty($product_quantities[$row->product_id])){
					$product_quantities[$row->product_id] = (int)@$row->cart_product_quantity;
				}else{
					$product_quantities[$row->product_id]+=(int)@$row->cart_product_quantity;
				}
				if(empty($product_quantities[$row->product_parent_id])){
					$product_quantities[$row->product_parent_id] = (int)@$row->cart_product_quantity;
				}else{
					$product_quantities[$row->product_parent_id] += (int)@$row->cart_product_quantity;
				}
			}
			foreach($rows as $k => $row){
				$rows[$k]->cart_product_total_quantity = $product_quantities[$row->product_id];
				if($row->product_parent_id){
					$rows[$k]->cart_product_total_variants_quantity = $product_quantities[$row->product_parent_id];
				}else{
					$rows[$k]->cart_product_total_variants_quantity = $rows[$k]->cart_product_total_quantity;
				}
			}
			//calculate prices
			$currencyClass->getPrices($rows,$ids,$currency_id,$main_currency,$zone_id,$discount_before_tax);
			foreach($rows as $k => $row){
				if(!empty($row->variants)){
					foreach($row->variants as $k2 => $variant){
						$productClass->checkVariant($rows[$k]->variants[$k2],$row);
					}
				}
			}
			foreach($rows as $k => $row){
				$currencyClass->calculateProductPriceForQuantity($rows[$k]);

				//If row_type = variant, the oldest is a main > hide the main
				$rows[$k]->hide = 0;
				if($row->product_type == 'variant'){
					$rows[--$k]->hide = 1;
				}
			}

			$total=new stdClass();
			$currencyClass->calculateTotal($rows,$total,$currency_id);

		}
		*/
		$this->assignRef('total',$total);
		$this->assignRef('rows',$rows);
		$this->assignRef('config',$config);
		$cart=hikashop_get('helper.cart');
		$this->assignRef('cart',$cart);
		$this->assignRef('currencyHelper',$currencyClass);
		$cart->cartCount(true);
		$url = $this->init(true);

		$this->params->set('url',$url);
		ob_start();
		$cart->getJS($url,false);
		$notice_html = ob_get_clean();
		$this->assignRef('notice_html',$notice_html);
		if(hikashop_level(2)){
			$null=null;
			$fieldsClass=hikashop_get('class.field');
			$itemFields = $fieldsClass->getFields('frontcomp',$null,'item','checkout&task=state');
			$this->assignRef('itemFields',$itemFields);
			$this->assignRef('fieldsClass',$fieldsClass);
		}
		//$this->addJS();
	}