Squashed commit message

backend/src/app/Handlers/FormsHandler.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace App\Handlers;
+
+use JsonException;
+use Acme\ECommerceFramework\Exceptions\EntityNotFoundException;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Acme\ECommerceFramework\Http\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Acme\ECommerceFramework\QueryBuilder\Builder;
+
+class FormsHandler
+{
+    private Builder $builder;
+
+    public function __construct(Builder $builder)
+    {
+        $this->builder = $builder;
+    }
+
+    /**
+     * @throws EntityNotFoundException
+     * @throws JsonException
+     */
+    public function getForm(Request $request): JsonResponse
+    {
+        $alias = $request->json('alias');
+        if (! $alias) {
+            return new JsonResponse([
+                'error' => 'Form alias is required',
+            ], Response::HTTP_UNPROCESSABLE_ENTITY);
+        }
+
+        $form = $this->builder->newQuery()
+            ->from('acmeshop_forms')
+            ->where('alias', '=', $alias)
+            ->firstOrNull();
+
+        if (! $form) {
+            throw new EntityNotFoundException("Form with alias `{$alias}` not found");
+        }
+
+        $schema = json_decode($form['schema'], true, 512, JSON_THROW_ON_ERROR);
+
+        return new JsonResponse([
+            'data' => [
+                'schema' => $schema,
+            ],
+        ]);
+    }
+}