/**
* Refund the card transaction through gateway
*
* @param Mage_Payment_Model_Info $payment
* @param Varien_Object $card
* @return Mage_Sales_Model_Order_Payment_Transaction
*/
protected function _refundCardTransaction($payment, $amount, $card)
{
/**
* Card has last transaction with type "refund" when all captured amount is refunded.
* Until this moment card has last transaction with type "capture".
*/
$captureTransactionId = $card->getLastTransId();
$captureTransaction = $payment->getTransaction($captureTransactionId);
$realCaptureTransactionId = $captureTransaction->getAdditionalInformation($this->_realTransactionIdKey);
$payment->setAnetTransType(self::REQUEST_TYPE_CREDIT);
$payment->setXTransId($realCaptureTransactionId);
$payment->setAmount($amount);
$request = $this->_buildRequest($payment);
$request->setXCardNum($card->getCcLast4());
$result = $this->_postRequest($request);
switch ($result->getResponseCode()) {
case self::RESPONSE_CODE_APPROVED:
if ($result->getResponseReasonCode() == self::RESPONSE_REASON_CODE_APPROVED) {
$refundTransactionId = $result->getTransactionId() . '-refund';
$shouldCloseCaptureTransaction = 0;
/**
* If it is last amount for refund, transaction with type "capture" will be closed
* and card will has last transaction with type "refund"
*/
if ($this->_formatAmount($card->getCapturedAmount() - $card->getRefundedAmount()) == $amount) {
$card->setLastTransId($refundTransactionId);
$shouldCloseCaptureTransaction = 1;
}
return $this->_addTransaction($payment, $refundTransactionId, Mage_Sales_Model_Order_Payment_Transaction::TYPE_REFUND, array('is_transaction_closed' => 1, 'should_close_parent_transaction' => $shouldCloseCaptureTransaction, 'parent_transaction_id' => $captureTransactionId), array($this->_realTransactionIdKey => $result->getTransactionId()), Mage::helper('paygate')->getTransactionMessage($payment, self::REQUEST_TYPE_CREDIT, $result->getTransactionId(), $card, $amount));
}
$exceptionMessage = $this->_wrapGatewayError($result->getResponseReasonText());
break;
case self::RESPONSE_CODE_DECLINED:
case self::RESPONSE_CODE_ERROR:
$exceptionMessage = $this->_wrapGatewayError($result->getResponseReasonText());
break;
default:
$exceptionMessage = Mage::helper('paygate')->__('Payment refunding error.');
break;
}
$exceptionMessage = Mage::helper('paygate')->getTransactionMessage($payment, self::REQUEST_TYPE_CREDIT, $realCaptureTransactionId, $card, $amount, $exceptionMessage);
Mage::throwException($exceptionMessage);
}