feat: implement payment step

src/Controller/Booking/BookingCreateTrait.php

@@ -46,4 +46,35 @@ trait BookingCreateTrait
 
         return $this->redirectToRoute($route);
     }
+
+    /**
+     * Returns the total number of participants based on room selections.
+     */
+    private function getParticipantsCount(BookingCreateDto $bookingCreateDto): int
+    {
+        return $this
+            ->bookingService
+            ->getParticipantsCount($bookingCreateDto->roomSelections, $bookingCreateDto->travel);
+    }
+
+    /**
+     * Prepares template variables for the booking summary sidebar.
+     *
+     * @return array<string, mixed> Array containing all variables needed for the summary partial
+     */
+    private function getSummaryVariables(BookingCreateDto $bookingCreateDto): array
+    {
+        $participantsCount = $this->getParticipantsCount($bookingCreateDto);
+        $summary = $this->bookingService->getRoomSummaryAndParticipantCount($bookingCreateDto);
+        $roomAssignmentCounts = $this->bookingService->getRoomAssignmentCounts($bookingCreateDto);
+        $availableRooms = $bookingCreateDto->travel->getAvailableRooms();
+        $groupedSelectedRooms = $this->bookingService->groupRoomSelectionsByType($bookingCreateDto->getSelectedRooms(), $availableRooms);
+
+        return [
+            'participantsCount' => $participantsCount,
+            'pricingData' => $summary['pricing'],
+            'assignmentCounts' => $roomAssignmentCounts,
+            'groupedSelectedRooms' => $groupedSelectedRooms,
+        ];
+    }
 }

src/Controller/Booking/CreateStep2Controller.php

@@ -166,20 +166,6 @@ class CreateStep2Controller extends AbstractController
         return $response;
     }
 
-    /**
-     * Calculates the total number of participants based on room selections.
-     *
-     * @param BookingCreateDto $bookingCreateDto The booking DTO containing room selections
-     *
-     * @return int Total number of participants required
-     */
-    private function getParticipantsCount(BookingCreateDto $bookingCreateDto): int
-    {
-        return $this
-            ->bookingService
-            ->getParticipantsCount($bookingCreateDto->roomSelections, $bookingCreateDto->travel);
-    }
-
     /**
      * Ensures the booking DTO has the correct number of participant objects.
      *

src/Controller/Booking/CreateStep3Controller.php

@@ -4,35 +4,37 @@ declare(strict_types=1);
 
 namespace App\Controller\Booking;
 
+use App\BusProNet\Constants;
+use App\Controller\Traits\HtmxControllerTrait;
+use App\Form\BookingCreateStep3Type;
 use App\Service\BookingService;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Attribute\Route;
+use Symfony\Component\Security\Http\Attribute\IsGranted;
 
 /**
- * Handles the third step of the booking creation process.
- *
- * This controller manages the booking confirmation and final review
- * before completing the booking process.
+ * Handles the third step of the booking creation process (payment method selection).
  */
 class CreateStep3Controller extends AbstractController
 {
     use BookingCreateTrait;
     use BookingExceptionHandlerTrait;
+    use HtmxControllerTrait;
 
     public function __construct(
-        private readonly BookingService $bookingCreateService,
+        private readonly BookingService $bookingService,
     ) {
     }
 
     /**
-     * Displays the booking confirmation page.
+     * Displays and processes the payment method form.
      */
-    #[Route('/bookings/create/confirm', name: 'app_booking_create_step_3')]
-    public function confirm(Request $request): Response
+    #[Route('/bookings/create/payment', name: 'app_booking_create_step_3')]
+    public function step3(Request $request): Response
     {
-        $result = $this->getOrCreateBookingCreateDto($this->bookingCreateService, $request);
+        $result = $this->getOrCreateBookingCreateDto($this->bookingService, $request);
         if ($result instanceof Response) {
             return $result;
         }
@@ -43,8 +45,48 @@ class CreateStep3Controller extends AbstractController
             return $redirect;
         }
 
+        $form = $this->createForm(BookingCreateStep3Type::class, $bookingCreateDto);
+        $form->handleRequest($request);
+
+        if ($form->isSubmitted() && $form->isValid()) {
+            $this->bookingService->saveBookingCreateDto($request, $bookingCreateDto);
+
+            // TODO: Redirect to confirmation page or direct API submission
+            $this->addFlash('success', 'Zahlungsart erfolgreich ausgewählt.');
+
+            return $this->redirectToRoute('app_booking_create_step_3');
+        }
+
         return $this->render('booking/create_step_3.html.twig', [
             'bookingCreateDto' => $bookingCreateDto,
+            'form' => $form->createView(),
+            ...$this->getSummaryVariables($bookingCreateDto),
+        ]);
+    }
+
+    /**
+     * Handles HTMX refresh when payment method changes.
+     */
+    #[Route('/bookings/create/payment/refresh', name: 'app_booking_create_step_3_refresh')]
+    public function refresh(Request $request): Response
+    {
+        $result = $this->getOrCreateBookingCreateDto($this->bookingService, $request);
+        if ($result instanceof Response) {
+            return $result;
+        }
+        $bookingCreateDto = $result;
+
+        $form = $this->createForm(BookingCreateStep3Type::class, $bookingCreateDto, [
+            'validation_groups' => false,
+        ]);
+        $form->handleRequest($request);
+
+        $this->bookingService->saveBookingCreateDto($request, $bookingCreateDto);
+
+        return $this->render('booking/create_step_3.html.twig', [
+            'bookingCreateDto' => $bookingCreateDto,
+            'form' => $form->createView(),
+            ...$this->getSummaryVariables($bookingCreateDto),
         ]);
     }
 }