Examples for presentation.

sources/Example/VeryGood/Controller.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Example\VeryGood;
+
+use Psr\Http\Message\RequestInterface;
+
+class Controller
+{
+    private ApiClient $apiClient;
+    private Repository $repository;
+
+    private float $vat;
+
+    public function __construct(ApiClient $apiClient, Repository $repository, float $vat)
+    {
+        $this->apiClient = $apiClient;
+        $this->repository = $repository;
+        $this->vat = $vat;
+    }
+
+    public function getProducts(RequestInterface $request): array
+    {
+        $params = $request->getBody();
+
+        $apiProducts = $this->apiClient->getProducts($params);
+
+        $skus = array_map(fn($product) => $product->sku, $apiProducts);
+
+        $dbProducts = $this->repository->getProducts($skus);
+
+        Indexer::applyWhenMatch(
+            $dbProducts,
+            $apiProducts,
+            fn($product) => $product->getSku(),
+            fn($product) => $product->getSku(),
+            fn(Product $dbProduct, Product $apiProduct) => $dbProduct->setQuantity($apiProduct->quantity));
+
+        return array_map(fn($product) => $product->applyVat($this->vat), $dbProducts);
+    }
+}