/**
* Process "delta" rounding
*
* @param \Magento\SalesRule\Model\Rule\Action\Discount\Data $discountData
* @param \Magento\Sales\Model\Quote\Item\AbstractItem $item
* @return $this
*/
public function deltaRoundingFix(\Magento\SalesRule\Model\Rule\Action\Discount\Data $discountData, \Magento\Sales\Model\Quote\Item\AbstractItem $item)
{
$store = $item->getQuote()->getStore();
$discountAmount = $discountData->getAmount();
$baseDiscountAmount = $discountData->getBaseAmount();
//TODO Seems \Magento\Sales\Model\Quote\Item\AbstractItem::getDiscountPercent() returns float value
//that can not be used as array index
$percentKey = $item->getDiscountPercent();
if ($percentKey) {
$delta = isset($this->_roundingDeltas[$percentKey]) ? $this->_roundingDeltas[$percentKey] : 0;
$baseDelta = isset($this->_baseRoundingDeltas[$percentKey]) ? $this->_baseRoundingDeltas[$percentKey] : 0;
$discountAmount += $delta;
$baseDiscountAmount += $baseDelta;
$this->_roundingDeltas[$percentKey] = $discountAmount - $this->priceCurrency->round($discountAmount);
$this->_baseRoundingDeltas[$percentKey] = $baseDiscountAmount - $this->priceCurrency->round($baseDiscountAmount);
}
$discountData->setAmount($this->priceCurrency->round($discountAmount));
$discountData->setBaseAmount($this->priceCurrency->round($baseDiscountAmount));
return $this;
}