public function onSalesModelOrderCreditmemoRefund($observer)
{
if ($observer->getCreditmemo()->getOrder()->getInstallmentTypeId()) {
if (NGC_Installment_Model_Master::refundInstallmentPayment($observer)) {
return mage::throwException('Unable to refund installment payments');
}
}
}
protected static function _calculateNextInstallmentDueDate()
{
$daysToPayment = Mage::getStoreConfig('installment/grace_period_options/grace_period_days');
return NGC_Installment_Model_Master::calculateAmountDueDate($daysToPayment);
}
protected static function _refundPartialOrder($observer)
{
$creditMemo = $observer->getCreditmemo();
$order = $creditMemo->getOrder();
$payment = $order->getPayment();
$orderId = $order->getRealOrderId();
$newGrandTotal = $order->getGrandTotal();
$refunded = 0;
$totalRefund = $creditMemo->getGrandTotal();
$totalPaid = self::getTotalPaid($orderId);
$master = Mage::getModel('installment/master')->getCollection();
$master->addFieldToFilter('order_id', $orderId);
if (self::isPlanComplete($orderId)) {
$payment->getMethodInstance()->setStore($order->getStoreId())->refund($order->getPayment(), $totalRefund);
$payment->addTransaction(Mage_Sales_Model_Order_Payment_Transaction::TYPE_REFUND, $payment, false, sprintf('Refunded amount of %s', $totalRefund))->save();
} else {
// Customer has paid equal to the new grand total. Suspend future installment payments and close invoice
if ($totalPaid == $newGrandTotal) {
// Suspend all future installments
if (!NGC_Installment_Model_Master::suspendInstallmentPayment($orderId, 1, 'Order was refunded')) {
return Mage::throwException('Unable to suspend future installment payments');
}
// Close invoice
foreach ($order->getInvoiceCollection() as $invoice) {
$invoice->setState(Mage_Sales_Model_Order_Invoice::STATE_PAID)->save();
}
// Customer has paid less than the new grand total. Update future installments to take into
// account the new order grand total
} elseif ($totalPaid <= $newGrandTotal) {
// Iterate installment payments and calculate the remaining amount due.
$planTotal = $totalPaid;
foreach ($master as $installment) {
if (!$installment->getInstallmentMasterInstallmentPaid()) {
$newTotal = $planTotal + $installment->getInstallmentMasterAmountDue();
// If the $newTotal plan total is less than the new grand total refund continue to next transaction
if ($newTotal < $newGrandTotal) {
$planTotal = $newTotal;
continue;
// If the $newTotal plan total is equal to the new grand total then suspend all future installments
} elseif ($newTotal == $newGrandTotal) {
$nextSeqNum = $installment->getInstallmentMasterSequenceNumber() + 1;
if (!NGC_Installment_Model_Master::suspendInstallmentPayment($orderId, $nextSeqNum, 'Order was refunded')) {
return Mage::throwException('Unable to suspend future installment payments');
}
// The $newTotal plan total is greater than the new grand total. Calculate the difference,
// decrease the installment payment by the difference, and suspend future payments
} else {
$totalDiff = $newTotal - $newGrandTotal;
$newInstallmentTotal = $installment->getInstallmentMasterAmountDue() - $totalDiff;
$installment->setInstallmentMasterAmountDue($newInstallmentTotal)->save();
$nextSeqNum = $installment->getInstallmentMasterSequenceNumber() + 1;
if (!NGC_Installment_Model_Master::suspendInstallmentPayment($orderId, $nextSeqNum, 'Order was refunded')) {
return Mage::throwException('Unable to suspend future installment payments');
}
}
}
}
// Customer has paid more than the new order grand total. Refund the difference and suspend any future
// installment payments, close invoice, and mark order as complete
} elseif ($totalPaid > $newGrandTotal) {
$totalDiff = $totalPaid - $newGrandTotal;
$payment->getMethodInstance()->setStore($order->getStoreId())->refund($order->getPayment(), $totalDiff);
$payment->addTransaction(Mage_Sales_Model_Order_Payment_Transaction::TYPE_REFUND, $payment, false, sprintf('Refunded amount of %s', $totalRefund))->save();
$master = Mage::getModel('installment/master')->getCollection();
$master->addFieldToFilter('installment_master_installment_paided', 0)->addFieldToFilter('installment_master_installment_authorized', 0);
foreach ($master as $installment) {
$nextSeqNum = $installment->getInstallmentMasterSequenceNumber();
break;
}
// Suspend all future installments
if (!NGC_Installment_Model_Master::suspendInstallmentPayment($orderId, $nextSeqNum, 'Order was refunded')) {
return Mage::throwException('Unable to suspend future installment payments');
}
// Close invoice
foreach ($order->getInvoiceCollection() as $invoice) {
$invoice->setState(Mage_Sales_Model_Order_Invoice::STATE_PAID)->save();
}
}
}
}
