public function partialRefund(Customweb_Payment_Authorization_ITransaction $transaction, $items, $close)
{
if (!$transaction instanceof Customweb_Saferpay_Authorization_Transaction) {
throw new Exception("The given transaction is not instanceof Customweb_Saferpay_Authorization_Transaction.");
}
$amount = Customweb_Util_Invoice::getTotalAmountIncludingTax($items);
// Check the transaction state
$transaction->refundByLineItemsDry($items, $close);
$builder = new Customweb_Saferpay_BackendOperation_Adapter_Refund_ParameterBuilder($transaction, $this->getConfiguration(), $this->container);
$sendParameters = $builder->buildParameters($amount);
$requestUrl = Customweb_Saferpay_Util::addParametersToUrl($this->getExecuteUrl(), $sendParameters);
$response = Customweb_Saferpay_Util::sendRequest($requestUrl);
$parameters = $this->getXmlParameters($response);
if ($parameters['RESULT'] == 0) {
$id = $parameters['ID'];
$this->capture($transaction, $amount, $id);
$refundItem = $transaction->refundByLineItems($items, $close, Customweb_I18n_Translation::__("The total amount of the transaction was refunded. Refund transaction ID: '!paymentId' .", array('!paymentId' => $id)));
$refundItem->setRefundId($id);
} else {
if ($parameters['RESULT'] == '75') {
throw new Exception(Customweb_I18n_Translation::__('Refund of !amount failed because no card reference id was provided. This most likely because you try to refund a transaction authorized over the payment page. (Code: !result).', array('!amount' => $amount, '!result' => $parameters['RESULT'])));
} else {
throw new Exception(Customweb_I18n_Translation::__('Refund of !amount failed with code: !result.', array('!amount' => $amount, '!result' => $parameters['RESULT'])));
}
}
}
