/**
* Check coupons for validation
* Function will throw an ShopgateLibraryException if
* * Count of coupons > 1
* * Coupon cannot found
* * Magento throws an exception
*
* @param $mageCart
* @param ShopgateCart $cart
*
* @return mixed|null|ShopgateExternalCoupon
* @throws ShopgateLibraryException
*/
public function checkCoupons($mageCart, ShopgateCart $cart)
{
/* @var $mageQuote Mage_Sales_Model_Quote */
/* @var $mageCart Mage_Checkout_Model_Cart */
/* @var $mageCoupon Mage_SalesRule_Model_Coupon */
/* @var $mageRule Mage_SalesRule_Model_Rule */
if (!$cart->getExternalCoupons()) {
return null;
}
$externalCoupons = array();
$mageQuote = $mageCart->getQuote();
$validCouponsInCart = 0;
foreach ($cart->getExternalCoupons() as $coupon) {
/** @var ShopgateExternalCoupon $coupon */
$externalCoupon = new ShopgateExternalCoupon();
$externalCoupon->setIsValid(true);
$externalCoupon->setCode($coupon->getCode());
try {
$mageQuote->setCouponCode($coupon->getCode());
$mageQuote->setTotalsCollectedFlag(false)->collectTotals();
} catch (Exception $e) {
$externalCoupon->setIsValid(false);
$externalCoupon->setNotValidMessage($e->getMessage());
}
if ($this->_getConfigHelper()->getIsMagentoVersionLower1410()) {
$mageRule = Mage::getModel('salesrule/rule')->load($coupon->getCode(), 'coupon_code');
$mageCoupon = $mageRule;
} else {
$mageCoupon = Mage::getModel('salesrule/coupon')->load($coupon->getCode(), 'code');
$mageRule = Mage::getModel('salesrule/rule')->load($mageCoupon->getRuleId());
}
if ($mageRule->getId() && $mageQuote->getCouponCode()) {
$couponInfo = array();
$couponInfo["coupon_id"] = $mageCoupon->getId();
$couponInfo["rule_id"] = $mageRule->getId();
$amountCoupon = $mageQuote->getSubtotal() - $mageQuote->getSubtotalWithDiscount();
$storeLabel = $mageRule->getStoreLabel(Mage::app()->getStore()->getId());
$externalCoupon->setName($storeLabel ? $storeLabel : $mageRule->getName());
$externalCoupon->setDescription($mageRule->getDescription());
$externalCoupon->setIsFreeShipping((bool) $mageQuote->getShippingAddress()->getFreeShipping());
$externalCoupon->setInternalInfo($this->jsonEncode($couponInfo));
$externalCoupon->setAmountGross($amountCoupon);
if (!$amountCoupon && !$externalCoupon->getIsFreeShipping()) {
$externalCoupon->setIsValid(false);
$externalCoupon->setNotValidMessage($this->_getHelper()->__('Coupon code "%s" is not valid.', Mage::helper('core')->htmlEscape($coupon->getCode())));
}
$externalCoupon->setTaxType('not_taxable');
} else {
$externalCoupon->setIsValid(false);
$externalCoupon->setNotValidMessage($this->_getHelper()->__('Coupon code "%s" is not valid.', Mage::helper('core')->htmlEscape($coupon->getCode())));
}
if ($externalCoupon->getIsValid() && $validCouponsInCart >= 1) {
$errorCode = ShopgateLibraryException::COUPON_TOO_MANY_COUPONS;
$externalCoupon->setIsValid(false);
$externalCoupon->setNotValidMessage(ShopgateLibraryException::getMessageFor($errorCode));
}
if ($externalCoupon->getIsValid()) {
$validCouponsInCart++;
}
$externalCoupons[] = $externalCoupon;
}
return $externalCoupons;
}