custom/static-plugins/WexoGreenAlternatives/src/Subscriber/WexoGreenAlternativesCartSubscriber.php line 33

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  1. <?php declare(strict_types=1);
  3. namespace Wexo\GreenAlternatives\Subscriber;
  5. use Shopware\Core\Checkout\Cart\LineItem\LineItem;
  6. use Shopware\Core\Framework\DataAbstractionLayer\EntityRepository;
  7. use Shopware\Core\Framework\Struct\ArrayStruct;
  8. use Shopware\Storefront\Page\Checkout\Cart\CheckoutCartPageLoadedEvent;
  9. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  10. use Wexo\GreenAlternatives\Service\GreenAlternativeService;
  12. class WexoGreenAlternativesCartSubscriber implements EventSubscriberInterface
  13. {
  15.     private GreenAlternativeService $alternativeService;
  16.     private EntityRepository $greenAlternativeRepository;
  18.     public function __construct(
  19.         GreenAlternativeService   $alternativeService,
  20.         EntityRepository $greenAlternativeRepository
  21.     ) {
  22.         $this->alternativeService = $alternativeService;
  23.         $this->greenAlternativeRepository = $greenAlternativeRepository;
  24.     }
  26.     public static function getSubscribedEvents(): array
  27.     {
  28.         return [
  29.             CheckoutCartPageLoadedEvent::class => 'onCheckoutCartPageLoaded'
  30.         ];
  31.     }
  33.     public function onCheckoutCartPageLoaded(CheckoutCartPageLoadedEvent $event)
  34.     {
  35.         $lineItems = $event->getPage()->getCart()->getLineItems();
  36.         $greenAlternatives = $lineItems->filter(
  37.         /* Filter out any non products, such as custom products and promotions */
  38.             fn($item) => $item->getType() === LineItem::PRODUCT_LINE_ITEM_TYPE
  39.         )->map(fn($lineItem) => [
  40.             'current' => $lineItem,
  41.             'alternative' => $this->alternativeService->getGreenAlternativeByPriority(
  42.                 $lineItem->getId(),
  43.                 $event->getSalesChannelContext()->getContext()
  44.             )
  45.             ?? null
  46.         ]);
  47.         foreach ($greenAlternatives as $greenAlternative) {
  48.             if ($greenAlternative['alternative']) {
  49.                 $lineItems->addExtension('wexoGreenAlternative', new ArrayStruct(['alternativesAvailable' => true]));
  50.                 break;
  51.             }
  52.         }
  53.     }
  54. }