ProductMediaCollection example

$this->eventDispatcher->dispatch(new ProductPageCriteriaEvent($productId, $criteria, $context));

        $result = $this->productDetailRoute->load($productId, $request, $context, $criteria);
        $product = $result->getProduct();

        if ($product->getMedia()) {
            $product->getMedia()->sort(fn (ProductMediaEntity $a, ProductMediaEntity $b) => $a->getPosition() <=> $b->getPosition());
        }

        if ($product->getMedia() && $product->getCover()) {
            $product->setMedia(new ProductMediaCollection(array_merge(
                [$product->getCover()->getId() => $product->getCover()],
                $product->getMedia()->getElements()
            )));
        }

        if ($category = $product->getSeoCategory()) {
            $request->request->set('navigationId', $category->getId());
        }

        $page = $this->genericLoader->load($request, $context);
        $page = ProductPage::createFrom($page);

        

$mediaEntity->setId($mediaId);

            $tempProductMedia = new ProductMediaEntity();
            $tempProductMedia->setId($mediaId);
            $tempProductMedia->setMediaId($mediaId);
            $tempProductMedia->setMedia($mediaEntity);
            $tempProductMedia->setPosition($i);

            $productMedia[] = $tempProductMedia;
        }

        return new ProductMediaCollection($productMedia);
    }

    protected function getResolverContext(ProductMediaCollection $productMediaCollection, ?string $coverId = null): EntityResolverContext
    {
        $manufacturer = new ProductManufacturerEntity();
        $manufacturer->setId('manufacturer_01');

        $product = new SalesChannelProductEntity();
        $product->setId('product_01');
        $product->setManufacturer($manufacturer);
        $product->setMedia($productMediaCollection);

        

if ($sliderItems === null || (is_countable($sliderItems) ? \count($sliderItems) : 0) < 1) {
                return;
            }
            $this->sortItemsByPosition($sliderItems);

            if ($sliderItemsConfig->getStringValue() === 'product.media') {
                /** @var ProductEntity $productEntity */
                $productEntity = $resolverContext->getEntity();

                if ($productEntity->getCover()) {
                    /** @var ProductMediaCollection $sliderItems */
                    $sliderItems = new ProductMediaCollection(array_merge(
                        [$productEntity->getCoverId() => $productEntity->getCover()],
                        $sliderItems->getElements()
                    ));
                }
            }

            foreach ($sliderItems->getMedia() as $media) {
                $imageSliderItem = new ImageSliderItemStruct();
                $imageSliderItem->setMedia($media);
                $imageSlider->addSliderItem($imageSliderItem);
            }
        }

        return $this->filter(function DProductEntity $product) use ($optionIds) {
            $ids = $product->getOptionIds() ?? [];
            $same = array_intersect($ids, $optionIds);

            return \count($same) === \count($optionIds);
        });
    }

    public function getCovers(): ProductMediaCollection
    {
        return new ProductMediaCollection($this->fmap(fn (ProductEntity $product) => $product->getCover()));
    }

    public function getApiAlias(): string
    {
        return 'product_collection';
    }

    protected function getExpectedClass(): string
    {
        return ProductEntity::class;
    }
}