/**
  * Sets delivery sets parameters to PayPal callback
  *
  * @param oePayPalService   $oPayPalService   PayPal service.
  * @param oxDeliverySetList $aDeliverySetList Delivery list.
  * @param oxUser            $oUser            User object.
  * @param oxBasket          $oBasket          Basket object.
  *
  * @return int Total amount of deliveries
  */
 protected function _setDeliverySetListForCallbackResponse($oPayPalService, $aDeliverySetList, $oUser, $oBasket)
 {
     $dMaxDeliveryAmount = $this->getPayPalConfig()->getMaxPayPalDeliveryAmount();
     $oCur = $this->getConfig()->getActShopCurrencyObject();
     $dBasketPrice = $oBasket->getPriceForPayment() / $oCur->rate;
     $sActShipSet = $oBasket->getShippingId();
     $blHasActShipSet = false;
     $iCnt = 0;
     // VAT for delivery will be calculated always
     $fDelVATPercent = $oBasket->getAdditionalServicesVatPercent();
     foreach ($aDeliverySetList as $sDelSetId => $sDelSetName) {
         // checking if PayPal is valid payment for selected delivery set
         if (!$this->_isPayPalInDeliverySet($sDelSetId, $dBasketPrice, $oUser)) {
             continue;
         }
         $oDeliveryList = oxNew('oxDeliveryList');
         $aDeliveryList = array();
         // list of active delivery costs
         if ($oDeliveryList->hasDeliveries($oBasket, $oUser, $this->_getUserShippingCountryId($oUser), $sDelSetId)) {
             $aDeliveryList = $oDeliveryList->getDeliveryList($oBasket, $oUser, $this->_getUserShippingCountryId($oUser), $sDelSetId);
         }
         if (count($aDeliveryList) > 0) {
             $dPrice = 0;
             if ($this->getConfig()->getConfigParam('bl_perfLoadDelivery')) {
                 foreach ($aDeliveryList as $oDelivery) {
                     $dPrice += $oDelivery->getDeliveryPrice($fDelVATPercent)->getBruttoPrice();
                 }
             }
             if ($dPrice <= $dMaxDeliveryAmount) {
                 $oPayPalService->setParameter("L_SHIPPINGOPTIONNAME{$iCnt}", getStr()->html_entity_decode($sDelSetName));
                 $oPayPalService->setParameter("L_SHIPPINGOPTIONLABEL{$iCnt}", oxRegistry::getLang()->translateString("OEPAYPAL_PRICE"));
                 $oPayPalService->setParameter("L_SHIPPINGOPTIONAMOUNT{$iCnt}", $this->_formatFloat($dPrice));
                 //setting active delivery set
                 if ($sDelSetId == $sActShipSet) {
                     $blHasActShipSet = true;
                     $oPayPalService->setParameter("L_SHIPPINGOPTIONISDEFAULT{$iCnt}", "true");
                 } else {
                     $oPayPalService->setParameter("L_SHIPPINGOPTIONISDEFAULT{$iCnt}", "false");
                 }
                 if ($oBasket->isCalculationModeNetto()) {
                     $oPayPalService->setParameter("L_TAXAMT{$iCnt}", $this->_formatFloat($oBasket->getPayPalBasketVatValue()));
                 } else {
                     $oPayPalService->setParameter("L_TAXAMT{$iCnt}", $this->_formatFloat(0));
                 }
             }
             $iCnt++;
         }
     }
     //checking if active delivery set was set - if not, setting first in the list
     if ($iCnt > 0 && !$blHasActShipSet) {
         $oPayPalService->setParameter("L_SHIPPINGOPTIONISDEFAULT0", "true");
     }
     return $iCnt;
 }