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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
declare(strict_types=1);
namespace Magento\SalesRule\Observer;
use Magento\Framework\Api\SearchCriteriaBuilder;
use Magento\Framework\Event\Observer as EventObserver;
use Magento\Framework\Event\ObserverInterface;
use Magento\Quote\Api\CartRepositoryInterface;
use Magento\Quote\Api\Data\CartInterface;
use Magento\Quote\Model\Quote;
use Magento\SalesRule\Api\Exception\CodeRequestLimitException;
use Magento\SalesRule\Model\Spi\CodeLimitManagerInterface;
/**
* Validate newly provided coupon code before using it while calculating totals.
*/
class CouponCodeValidation implements ObserverInterface
{
/**
* @var CartRepositoryInterface
*/
private $cartRepository;
/**
* @var SearchCriteriaBuilder
*/
private $criteriaBuilder;
/**
* @var CodeLimitManagerInterface
*/
private $codeLimitManager;
/**
* @param CodeLimitManagerInterface $codeLimitManager
* @param CartRepositoryInterface $cartRepository
* @param SearchCriteriaBuilder $criteriaBuilder
*/
public function __construct(
CodeLimitManagerInterface $codeLimitManager,
CartRepositoryInterface $cartRepository,
SearchCriteriaBuilder $criteriaBuilder
) {
$this->codeLimitManager = $codeLimitManager;
$this->cartRepository = $cartRepository;
$this->criteriaBuilder = $criteriaBuilder;
}
/**
* @inheritDoc
*/
public function execute(EventObserver $observer)
{
/** @var Quote $quote */
$quote = $observer->getData('quote');
$code = $quote->getCouponCode();
if ($code) {
//Only validating the code if it's a new code.
/** @var Quote[] $found */
$found = $this->cartRepository->getList(
$this->criteriaBuilder->addFilter('main_table.' . CartInterface::KEY_ENTITY_ID, $quote->getId())
->create()
)->getItems();
if (!$found || ((string)array_shift($found)->getCouponCode()) !== (string)$code) {
try {
$this->codeLimitManager->checkRequest($code);
} catch (CodeRequestLimitException $exception) {
$quote->setCouponCode('');
throw $exception;
}
}
}
}
}