<?php

declare(strict_types=1);

namespace App\Controller\Admin\AccommodationBooking;

use App\Entity\Groups\AccommodationBooking;
use App\Entity\User;
use App\Exception\ImplausibleBookingPriceException;
use App\Form\Admin\Groups\AccommodationBookingCreateType;
use App\Htmx\HxRedirectResponse;
use App\Service\AccommodationBookingService;
use Doctrine\ORM\EntityManagerInterface;
use Psr\Log\LoggerInterface;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Form\FormError;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Attribute\Route;
use Symfony\Component\Security\Http\Attribute\IsGranted;

#[IsGranted('ROLE_GROUPS_MANAGER')]
class CreateController extends AbstractController
{
    public function __construct(
        private readonly EntityManagerInterface $entityManager,
        private readonly LoggerInterface $logger,
        private readonly AccommodationBookingService $bookingService,
    ) {
    }

    #[Route('/admin/accommodation-booking/create', name: 'app_admin_accommodationbooking_create')]
    public function index(Request $request): Response
    {
        $booking = new AccommodationBooking();

        // Whoever creates a booking in the backoffice looks after it until someone else is
        // assigned in the edit form. The route is behind ROLE_GROUPS_MANAGER, so the creator
        // is always eligible as Betreuer.
        $user = $this->getUser();
        if ($user instanceof User) {
            $booking->setManagedBy($user);
        }

        $form = $this->createForm(AccommodationBookingCreateType::class, $booking, [
            'hx_post' => $request->getRequestUri(),
        ]);
        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid() && $this->refreshPriceSnapshot($form, $booking)) {
            $this->entityManager->persist($booking);
            $this->entityManager->flush();

            $this->addFlash('success', 'Die Buchung wurde erstellt');

            $this->logger->info('Created accommodation booking', [
                'id' => $booking->getId(),
            ]);

            return new HxRedirectResponse(
                $this->generateUrl('app_admin_accommodationbooking_edit', ['id' => $booking->getId()])
            );
        }

        return $this->render('admin/accommodation_booking/modal_create.html.twig', [
            'form' => $form,
        ]);
    }

    /**
     * The price is computed after validation, so an implausible total cannot be a constraint on
     * the form — it is reported as one anyway, because the office's next move is to go and fix
     * the house's prices, not to read an error page.
     *
     * @param FormInterface<AccommodationBooking> $form
     */
    private function refreshPriceSnapshot(FormInterface $form, AccommodationBooking $booking): bool
    {
        try {
            $this->bookingService->refreshPriceSnapshot($booking);

            return true;
        } catch (ImplausibleBookingPriceException $e) {
            $this->logger->error('Refused to store an implausible accommodation booking total', [
                'exception' => $e,
                'id' => $booking->getId(),
                'accommodation' => $booking->getAccommodation()?->getCalendarCode(),
                'paxCount' => $booking->getPaxCount(),
                'nights' => $booking->getNights(),
            ]);
            $form->addError(new FormError(ImplausibleBookingPriceException::FORM_ERROR_MESSAGE));

            return false;
        }
    }
}