public function Refund(Varien_Object $payment, $amount)
{
try {
$oPayment = new AllInOne();
$oPayment->ServiceURL = $this->_getConfigData('test_mode') ? 'http://payment-stage.allpay.com.tw/CreditDetail/DoAction' : 'https://payment.allpay.com.tw/CreditDetail/DoAction';
$oPayment->HashKey = $this->_getConfigData('hash_key');
$oPayment->HashIV = $this->_getConfigData('hash_iv');
$oPayment->MerchantID = $this->_getConfigData('merchant_id');
$oPayment->Action['MerchantTradeNo'] = ($this->_getConfigData('test_mode') ? $this->_getConfigData('test_order_prefix') : '') . $this->_getOrder()->getRealOrderId();
$oPayment->Action['TradeNo'] = $payment->getLastTransId();
$oPayment->Action['Action'] = ActionType::R;
$oPayment->Action['TotalAmount'] = (int) $amount;
$arFeedback = $oPayment->DoAction();
} catch (Exception $e) {
Mage::throwException($e->getMessage());
}
return $this;
}
