/**
* Prepare order data for refund
*
* @param \Magento\Sales\Model\Order\Creditmemo $creditmemo
* @return void
*/
protected function prepareOrder(\Magento\Sales\Model\Order\Creditmemo $creditmemo)
{
$order = $creditmemo->getOrder();
$baseOrderRefund = $this->priceCurrency->round($order->getBaseTotalRefunded() + $creditmemo->getBaseGrandTotal());
$orderRefund = $this->priceCurrency->round($order->getTotalRefunded() + $creditmemo->getGrandTotal());
$order->setBaseTotalRefunded($baseOrderRefund);
$order->setTotalRefunded($orderRefund);
$order->setBaseSubtotalRefunded($order->getBaseSubtotalRefunded() + $creditmemo->getBaseSubtotal());
$order->setSubtotalRefunded($order->getSubtotalRefunded() + $creditmemo->getSubtotal());
$order->setBaseTaxRefunded($order->getBaseTaxRefunded() + $creditmemo->getBaseTaxAmount());
$order->setTaxRefunded($order->getTaxRefunded() + $creditmemo->getTaxAmount());
$order->setBaseDiscountTaxCompensationRefunded($order->getBaseDiscountTaxCompensationRefunded() + $creditmemo->getBaseDiscountTaxCompensationAmount());
$order->setDiscountTaxCompensationRefunded($order->getDiscountTaxCompensationRefunded() + $creditmemo->getDiscountTaxCompensationAmount());
$order->setBaseShippingRefunded($order->getBaseShippingRefunded() + $creditmemo->getBaseShippingAmount());
$order->setShippingRefunded($order->getShippingRefunded() + $creditmemo->getShippingAmount());
$order->setBaseShippingTaxRefunded($order->getBaseShippingTaxRefunded() + $creditmemo->getBaseShippingTaxAmount());
$order->setShippingTaxRefunded($order->getShippingTaxRefunded() + $creditmemo->getShippingTaxAmount());
$order->setAdjustmentPositive($order->getAdjustmentPositive() + $creditmemo->getAdjustmentPositive());
$order->setBaseAdjustmentPositive($order->getBaseAdjustmentPositive() + $creditmemo->getBaseAdjustmentPositive());
$order->setAdjustmentNegative($order->getAdjustmentNegative() + $creditmemo->getAdjustmentNegative());
$order->setBaseAdjustmentNegative($order->getBaseAdjustmentNegative() + $creditmemo->getBaseAdjustmentNegative());
$order->setDiscountRefunded($order->getDiscountRefunded() + $creditmemo->getDiscountAmount());
$order->setBaseDiscountRefunded($order->getBaseDiscountRefunded() + $creditmemo->getBaseDiscountAmount());
if ($creditmemo->getDoTransaction()) {
$order->setTotalOnlineRefunded($order->getTotalOnlineRefunded() + $creditmemo->getGrandTotal());
$order->setBaseTotalOnlineRefunded($order->getBaseTotalOnlineRefunded() + $creditmemo->getBaseGrandTotal());
} else {
$order->setTotalOfflineRefunded($order->getTotalOfflineRefunded() + $creditmemo->getGrandTotal());
$order->setBaseTotalOfflineRefunded($order->getBaseTotalOfflineRefunded() + $creditmemo->getBaseGrandTotal());
}
$order->setBaseTotalInvoicedCost($order->getBaseTotalInvoicedCost() - $creditmemo->getBaseCost());
}