INT-221: predictivebasket example for kastner

src/Model/Api/Example.php

@@ -0,0 +1,55 @@
+<?php
+declare(strict_types=1);
+
+namespace Omikron\Factfinder\Model\Api;
+
+use Magento\Checkout\Model\Session as CheckoutSession;
+use Magento\Quote\Model\Quote\Item;
+use Omikron\FactFinder\Communication\Client\ClientBuilder;
+use Omikron\Factfinder\Model\Config\AuthConfig;
+use Omikron\Factfinder\Model\Config\CommunicationConfig;
+use Omikron\Factfinder\Model\SessionData;
+
+class Example
+{
+    public function __construct(
+        private readonly SessionData $sessionData,
+        private readonly CommunicationConfig $communicationConfig,
+        private readonly ClientBuilder $clientBuilder,
+        private readonly AuthConfig $authConfig,
+        private readonly CheckoutSession $checkoutSession,
+    ) {
+    }
+
+    public function getPredictiveBasketSkus(): array
+    {
+        $cartSkus = array_map(
+            static fn (Item $item): string => $item->getProduct()->getSku(),
+            $this->checkoutSession->getQuote()->getItems() ?? []
+        );
+
+        $baseParams = [
+            'idsOnly' => true,
+            'userId'  => $this->sessionData->getUserId(),
+        ];
+
+        $queryString = http_build_query($baseParams, '', '&', PHP_QUERY_RFC3986);
+
+        foreach ($cartSkus as $sku) {
+            $queryString .= '&blacklist=' . rawurlencode($sku);
+        }
+
+        $client = $this->clientBuilder
+            ->withServerUrl($this->communicationConfig->getAddress())
+            ->withApiKey($this->authConfig->getApiKey())
+            ->withVersion($this->communicationConfig->getVersion())
+            ->build();
+
+        $result = $client->request(
+            'GET',
+            'rest/v5/predictivebasket/dev_kastner?' . $queryString
+        );
+
+        return array_column($result['hits'] ?? [], 'id');
+    }
+}