feat: voucher purchase flow

src/Controller/Voucher/Step2Controller.php

@@ -0,0 +1,66 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Controller\Voucher;
+
+use App\Entity\User;
+use App\Form\VoucherPurchaseStep2Type;
+use App\Service\ParticipantDataPrefiller;
+use App\Service\VoucherPurchaseSessionManager;
+use App\Service\VoucherThumbnailResolver;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Attribute\Route;
+
+/**
+ * Step 2: the buyer (rechnungsempfänger), prefilled for signed-in accounts. Payment is fixed to
+ * transfer.
+ */
+class Step2Controller extends AbstractVoucherPurchaseController
+{
+    public function __construct(
+        VoucherPurchaseSessionManager $sessionManager,
+        VoucherThumbnailResolver $thumbnailResolver,
+        private readonly ParticipantDataPrefiller $personalDataPrefiller,
+    ) {
+        parent::__construct($sessionManager, $thumbnailResolver);
+    }
+
+    #[Route('/gutschein/kaeufer', name: 'app_voucher_step_2')]
+    public function index(Request $request): Response
+    {
+        $dto = $this->sessionManager->find($request);
+        if (null === $dto) {
+            return $this->createSessionExpiredResponse($request);
+        }
+
+        if (null !== $redirect = $this->validateStepAccess($dto, 2)) {
+            return $redirect;
+        }
+
+        $user = $this->getUser();
+        if ($user instanceof User && false === $dto->hasBuyerData()) {
+            $personalData = $this->personalDataPrefiller->fetchPersonalData($user);
+            if (null !== $personalData) {
+                $dto->prefillBuyer($personalData, $user->getEmail());
+                $this->sessionManager->save($request, $dto);
+            }
+        }
+
+        $form = $this->createForm(VoucherPurchaseStep2Type::class, $dto);
+        $form->handleRequest($request);
+
+        if (true === $form->isSubmitted() && true === $form->isValid()) {
+            $dto->currentStep = 3;
+            $this->sessionManager->save($request, $dto);
+
+            return $this->redirectToRoute('app_voucher_step_3');
+        }
+
+        return $this->render('voucher/step_2.html.twig', [
+            ...$this->createStepContext($dto),
+            'form' => $form,
+        ]);
+    }
+}