/**
* @param \Generated\Shared\Transfer\CartChangeTransfer $cartChangeTransfer
*
* @return \Generated\Shared\Transfer\QuoteTransfer
*/
public function removeItems(CartChangeTransfer $cartChangeTransfer)
{
$existingItems = $cartChangeTransfer->getQuote()->getItems();
$cartIndex = $this->createCartIndex($existingItems);
foreach ($cartChangeTransfer->getItems() as $itemTransfer) {
$this->isValidQuantity($itemTransfer);
$itemIdentifier = $this->getItemIdentifier($itemTransfer);
if (isset($cartIndex[$itemIdentifier])) {
$this->decreaseExistingItem($existingItems, $cartIndex[$itemIdentifier], $itemTransfer);
}
}
return $cartChangeTransfer->getQuote();
}
