wip: booking process, room assignment

src/Controller/Booking/CreateStep2Controller.php

@@ -0,0 +1,113 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Controller\Booking;
+
+use App\Form\BookingCreateStep2Type;
+use App\Form\Model\BookingCreateDto;
+use App\Form\Model\ParticipantDto;
+use App\Service\BookingService;
+use App\Validator\Constraints\Participant;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Attribute\Route;
+
+/**
+ * Handles the second step of the booking creation process.
+ *
+ * This controller manages participant information collection including
+ * dynamic room assignment functionality with HTMX-based form updates.
+ */
+class CreateStep2Controller extends AbstractController
+{
+    use BookingCreateTrait;
+
+    public function __construct(
+        private readonly BookingService $bookingService,
+    ) {
+    }
+
+    /**
+     * Displays and processes the participant information form.
+     */
+    #[Route('/bookings/create/participants', name: 'app_booking_create_step_2')]
+    public function participants(Request $request): Response
+    {
+        $bookingCreateDto = $this
+            ->bookingService
+            ->getOrCreateBookingCreateDto($request);
+
+        // Validate step access
+        $this->validateStepAccess($bookingCreateDto, 2);
+
+        // Ensure correct number of participants
+        $this->ensureCorrectNumberOfParticipants($bookingCreateDto);
+        $participantsCount = $this->getParticipantsCount($bookingCreateDto);
+        $this->bookingService->saveBookingCreateDto($request, $bookingCreateDto);
+
+        $form = $this->createForm(BookingCreateStep2Type::class, $bookingCreateDto, [
+            'attr' => ['novalidate' => 'novalidate'],
+            'validation_groups' => ['booking_create_step_2'],
+        ]);
+
+        $form->handleRequest($request);
+
+        if ($form->isSubmitted() && $form->isValid()) {
+            $bookingCreateDto->currentStep = 3;
+            $this->bookingService->saveBookingCreateDto($request, $bookingCreateDto);
+
+            return $this->redirectToRoute('app_booking_create_step_3');
+        }
+
+        return $this->render('booking/create_step_2.html.twig', [
+            'bookingCreateDto' => $bookingCreateDto,
+            'participantsCount' => $participantsCount,
+            'form' => $form->createView(),
+        ]);
+    }
+
+    /**
+     * Handles HTMX requests for dynamic form updates when room selections change.
+     */
+    #[Route('/bookings/create/participants/refresh', name: 'app_booking_create_step_2_refresh', methods: ['POST'])]
+    public function refreshParticipantForm(Request $request): Response
+    {
+        $bookingCreateDto = $this->bookingService->getOrCreateBookingCreateDto($request);
+
+        // Process form data without validation to capture current state
+        $form = $this->createForm(BookingCreateStep2Type::class, $bookingCreateDto, [
+            'attr' => ['novalidate' => 'novalidate'],
+            'validation_groups' => false,
+        ]);
+
+        $form->handleRequest($request);
+
+        $this->bookingService->saveBookingCreateDto($request, $bookingCreateDto);
+
+        return $this->renderBlock('booking/create_step_2.html.twig', 'participants_form', [
+            'form' => $form->createView(),
+        ]);
+    }
+
+    private function getParticipantsCount(BookingCreateDto $bookingCreateDto): int
+    {
+        return $this
+            ->bookingService
+            ->getParticipantsCount($bookingCreateDto->roomSelections, $bookingCreateDto->travelData);
+    }
+
+    private function ensureCorrectNumberOfParticipants(BookingCreateDto $bookingCreateDto): void
+    {
+        $participantsCount = $this->getParticipantsCount($bookingCreateDto);
+
+        $participants = $bookingCreateDto->participants;
+        $bookingCreateDto->participants = [];
+        for ($i = 0; $i < $participantsCount; ++$i) {
+            $participant = $participants[$i] ?? new ParticipantDto();
+            $participant->index = $i;
+            $bookingCreateDto->participants[$i] = $participant;
+        }
+    }
+}