/**
* refund the amount with transaction id
*
* @access public
* @param string $payment Varien_Object object
* @return Mage_Payment_Model_Abstract
*/
public function refund(Varien_Object $payment, $amount)
{
if ($payment->getCcTransId() && $payment->getAmount() > 0) {
$api = $this->getApi();
//we can refund the amount full or partial so it is good to set up as partial refund
$api->setTransactionId($payment->getCcTransId())->setRefundType(Mage_Paypal_Model_Api_Nvp::REFUND_TYPE_PARTIAL)->setAmount($amount);
if ($api->callRefundTransaction() !== false) {
$payment->setStatus('SUCCESS')->setCcTransId($api->getTransactionId());
} else {
$e = $api->getError();
$payment->setStatus('ERROR')->setStatusDescription($e['short_message'] . ': ' . $e['long_message']);
}
} else {
$payment->setStatus('ERROR');
$payment->setStatusDescription(Mage::helper('paypal')->__('Error in refunding the payment'));
}
}
