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<?php |
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/* |
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* This file is part of the Sylius package. |
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* |
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* (c) Paweł Jędrzejewski |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Sylius\Component\Promotion\Generator; |
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use Doctrine\Common\Persistence\ObjectManager; |
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use Sylius\Component\Promotion\Exception\FailedGenerationException; |
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use Sylius\Component\Promotion\Model\CouponInterface; |
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use Sylius\Component\Promotion\Model\PromotionInterface; |
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use Sylius\Component\Promotion\Repository\CouponRepositoryInterface; |
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use Sylius\Component\Resource\Factory\FactoryInterface; |
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use Webmozart\Assert\Assert; |
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/** |
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* @author Paweł Jędrzejewski <[email protected]> |
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*/ |
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class CouponGenerator implements CouponGeneratorInterface |
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{ |
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/** |
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* @var FactoryInterface |
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*/ |
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protected $couponFactory; |
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/** |
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* @var CouponRepositoryInterface |
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*/ |
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protected $couponRepository; |
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/** |
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* @var ObjectManager |
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*/ |
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protected $objectManager; |
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/** |
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* @var GenerationPolicyInterface |
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*/ |
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protected $generationPolicy; |
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/** |
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* @var CouponInterface[] |
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*/ |
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protected $generatedCoupons = []; |
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/** |
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* @param FactoryInterface $couponFactory |
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* @param CouponRepositoryInterface $couponRepository |
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* @param ObjectManager $objectManager |
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* @param GenerationPolicyInterface $generationPolicy |
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*/ |
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public function __construct( |
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FactoryInterface $couponFactory, |
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CouponRepositoryInterface $couponRepository, |
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ObjectManager $objectManager, |
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GenerationPolicyInterface $generationPolicy |
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) { |
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$this->couponFactory = $couponFactory; |
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$this->couponRepository = $couponRepository; |
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$this->objectManager = $objectManager; |
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$this->generationPolicy = $generationPolicy; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function generate(PromotionInterface $promotion, InstructionInterface $instruction) |
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{ |
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$this->assertGenerationIsPossible($instruction); |
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for ($i = 0, $amount = $instruction->getAmount(); $i < $amount; ++$i) { |
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$code = $this->generateUniqueCode($instruction->getCodeLength()); |
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$coupon = $this->couponFactory->createNew(); |
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$coupon->setPromotion($promotion); |
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$coupon->setCode($code); |
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$coupon->setUsageLimit($instruction->getUsageLimit()); |
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$coupon->setExpiresAt($instruction->getExpiresAt()); |
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$this->generatedCoupons[$code] = true; |
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$this->objectManager->persist($coupon); |
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} |
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$this->objectManager->flush(); |
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$this->generatedCoupons = []; |
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} |
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/** |
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* @param int $codeLength |
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* |
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* @return string |
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*/ |
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protected function generateUniqueCode($codeLength) |
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{ |
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Assert::nullOrRange($codeLength, 1, 40, 'Invalid %d code length should be between %d and %d'); |
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do { |
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$hash = sha1(microtime(true)); |
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$code = strtoupper(substr($hash, 0, $codeLength)); |
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} while ($this->isUsedCode($code)); |
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return $code; |
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} |
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/** |
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* @param string $code |
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* |
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* @return bool |
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*/ |
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protected function isUsedCode($code) |
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{ |
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if (isset($this->generatedCoupons[$code])) { |
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return true; |
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} |
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return null !== $this->couponRepository->findOneBy(['code' => $code]); |
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} |
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/** |
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* @param InstructionInterface $instruction |
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* |
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* @throws FailedGenerationException |
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*/ |
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private function assertGenerationIsPossible(InstructionInterface $instruction) |
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{ |
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if (!$this->generationPolicy->isGenerationPossible($instruction)) { |
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throw new FailedGenerationException($instruction); |
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} |
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} |
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} |
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Sylius /
Sylius
