/**
* @param \Magento\SalesRule\Model\Rule $rule
* @param \Magento\Quote\Model\Quote\Item\AbstractItem $item
* @param float $qty
* @param float $rulePercent
* @return Data
*/
protected function _calculate($rule, $item, $qty, $rulePercent)
{
/** @var \Magento\SalesRule\Model\Rule\Action\Discount\Data $discountData */
$discountData = $this->discountFactory->create();
$itemPrice = $this->validator->getItemPrice($item);
$baseItemPrice = $this->validator->getItemBasePrice($item);
$itemOriginalPrice = $this->validator->getItemOriginalPrice($item);
$baseItemOriginalPrice = $this->validator->getItemBaseOriginalPrice($item);
$_rulePct = $rulePercent / 100;
$discountData->setAmount(($qty * $itemPrice - $item->getDiscountAmount()) * $_rulePct);
$discountData->setBaseAmount(($qty * $baseItemPrice - $item->getBaseDiscountAmount()) * $_rulePct);
$discountData->setOriginalAmount(($qty * $itemOriginalPrice - $item->getDiscountAmount()) * $_rulePct);
$discountData->setBaseOriginalAmount(($qty * $baseItemOriginalPrice - $item->getBaseDiscountAmount()) * $_rulePct);
if (!$rule->getDiscountQty() || $rule->getDiscountQty() > $qty) {
$discountPercent = min(100, $item->getDiscountPercent() + $rulePercent);
$item->setDiscountPercent($discountPercent);
}
return $discountData;
}
/**
* Return discount item qty
*
* @param \Magento\Quote\Model\Quote\Item\AbstractItem $item
* @param \Magento\SalesRule\Model\Rule $rule
* @return int
*/
public function getItemQty($item, $rule)
{
$qty = $item->getTotalQty();
$discountQty = $rule->getDiscountQty();
return $discountQty ? min($qty, $discountQty) : $qty;
}
