OP-303: Expose API resource

src/Api/DataProvider/ProductCollectionDataProvider.php

@@ -0,0 +1,54 @@
+<?php
+
+declare(strict_types=1);
+
+namespace BitBag\SyliusElasticsearchPlugin\Api\DataProvider;
+
+use ApiPlatform\Core\DataProvider\ContextAwareCollectionDataProviderInterface;
+use ApiPlatform\Core\DataProvider\RestrictedDataProviderInterface;
+use BitBag\SyliusElasticsearchPlugin\Api\RequestDataHandler\RequestDataHandlerInterface;
+use BitBag\SyliusElasticsearchPlugin\Api\Resolver\FacetsResolverInterface;
+use BitBag\SyliusElasticsearchPlugin\Finder\ShopProductsFinderInterface;
+
+final class ProductCollectionDataProvider implements ContextAwareCollectionDataProviderInterface, RestrictedDataProviderInterface
+{
+    private const SUPPORTED_OPERATION_TYPE = 'elasticsearch_shop_get';
+
+    public function __construct(
+        private RequestDataHandlerInterface $dataHandler,
+        private ShopProductsFinderInterface $shopProductsFinder,
+        private FacetsResolverInterface $facetsResolver
+    ) {
+    }
+
+    public function getCollection(
+        string $resourceClass,
+        string $operationName = null,
+        array $context = []
+    ) {
+        $data = $this->dataHandler->retrieveData($context);
+        $facets = $this->facetsResolver->resolve($data);
+        $products = $this->shopProductsFinder->find($data);
+
+        return [
+            'items' => $products->jsonSerialize(),
+            'facets' => $facets,
+            'pagination' => [
+                'current_page' => $products->getCurrentPage(),
+                'has_previous_page' => $products->hasPreviousPage(),
+                'has_next_page' => $products->hasNextPage(),
+                'per_page' => $products->getMaxPerPage(),
+                'total_items' => $products->getNbResults(),
+                'total_pages' => $products->getNbPages(),
+            ],
+        ];
+    }
+
+    public function supports(
+        string $resourceClass,
+        string $operationName = null,
+        array $context = []
+    ): bool {
+        return self::SUPPORTED_OPERATION_TYPE === $operationName;
+    }
+}