<?php

declare(strict_types=1);

namespace App\Tests\Controller\Groups;

use App\Controller\Groups\OfferController;
use App\Entity\Groups\Accommodation;
use App\Entity\Groups\AccommodationBooking;
use App\Enum\Groups\AccommodationBookingStatus;
use App\Form\Model\OfferAcceptDto;
use App\Repository\Groups\AccommodationBookingRepository;
use App\Service\AccommodationBookingBreakdownCalculator;
use App\Service\AccommodationBookingLinkSigner;
use App\Service\AccommodationBookingService;
use App\Service\AccommodationTermsUrlProvider;
use PHPUnit\Framework\TestCase;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\Session\Session;
use Symfony\Component\HttpFoundation\Session\Storage\MockArraySessionStorage;

class OfferControllerTest extends TestCase
{
    public function testAccessAuthorizesSessionAndRedirectsToView(): void
    {
        $booking = new AccommodationBooking();
        $booking->setStatus(AccommodationBookingStatus::Open);

        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->with(['uuid' => $booking->getUuid()])->willReturn($booking);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->method('isValidLinkRequest')->willReturn(true);
        $linkSigner->expects(self::once())->method('authorizeSession')->with(self::anything(), $booking);

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $this->createMock(AccommodationBookingBreakdownCalculator::class),
            $this->createMock(AccommodationBookingService::class),
        );

        $response = $controller->access($booking->getUuid(), Request::create('/groups/booking/offer/'.$booking->getUuid()));

        self::assertInstanceOf(RedirectResponse::class, $response);
        self::assertSame('/app_groups_booking_offer_view?uuid='.$booking->getUuid(), $response->getTargetUrl());
    }

    public function testAccessRendersUnavailableForInvalidLink(): void
    {
        $booking = new AccommodationBooking();

        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->willReturn($booking);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->method('isValidLinkRequest')->willReturn(false);
        $linkSigner->expects(self::never())->method('authorizeSession');

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $this->createMock(AccommodationBookingBreakdownCalculator::class),
            $this->createMock(AccommodationBookingService::class),
        );

        $response = $controller->access($booking->getUuid(), Request::create('/groups/booking/offer/'.$booking->getUuid()));

        self::assertSame(Response::HTTP_OK, $response->getStatusCode());
        self::assertSame('groups/booking/offer_unavailable.html.twig', $controller->renderedView);
    }

    public function testAccessRendersUnavailableForUnknownUuid(): void
    {
        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->willReturn(null);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->expects(self::never())->method('isValidLinkRequest');

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $this->createMock(AccommodationBookingBreakdownCalculator::class),
            $this->createMock(AccommodationBookingService::class),
        );

        $response = $controller->access('unknown-uuid', Request::create('/groups/booking/offer/unknown-uuid'));

        self::assertSame(Response::HTTP_OK, $response->getStatusCode());
        self::assertSame('groups/booking/offer_unavailable.html.twig', $controller->renderedView);
    }

    /**
     * @dataProvider statusesTheCustomerMustNotSee
     */
    public function testAccessRendersUnavailableForABookingThatIsNotOfferedYet(AccommodationBookingStatus $status): void
    {
        $booking = new AccommodationBooking();
        $booking->setStatus($status);

        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->willReturn($booking);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->method('isValidLinkRequest')->willReturn(true);
        $linkSigner->expects(self::never())->method('authorizeSession');

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $this->createMock(AccommodationBookingBreakdownCalculator::class),
            $this->createMock(AccommodationBookingService::class),
        );

        $response = $controller->access($booking->getUuid(), Request::create('/groups/booking/offer/'.$booking->getUuid()));

        self::assertSame(Response::HTTP_OK, $response->getStatusCode());
        self::assertSame('groups/booking/offer_unavailable.html.twig', $controller->renderedView);
    }

    /**
     * @return iterable<string, array{AccommodationBookingStatus}>
     */
    public static function statusesTheCustomerMustNotSee(): iterable
    {
        // A scratch record and an inquiry the office has not worked through yet are both
        // unfinished; a discarded one is over. All three behave like an expired link.
        yield 'draft' => [AccommodationBookingStatus::Draft];
        yield 'requested' => [AccommodationBookingStatus::Requested];
        yield 'discarded' => [AccommodationBookingStatus::Discarded];
    }

    public function testViewRendersUnavailableForDiscardedBooking(): void
    {
        $booking = new AccommodationBooking();
        $booking->setStatus(AccommodationBookingStatus::Discarded);
        $booking->setAccommodation(new Accommodation());

        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->willReturn($booking);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->method('isSessionAuthorized')->willReturn(true);

        $breakdownCalculator = $this->createMock(AccommodationBookingBreakdownCalculator::class);
        $breakdownCalculator->expects(self::never())->method('compute');

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $breakdownCalculator,
            $this->createMock(AccommodationBookingService::class),
        );

        $request = Request::create('/groups/booking/offer/'.$booking->getUuid().'/view');
        $request->setSession(new Session(new MockArraySessionStorage()));
        $response = $controller->view($booking->getUuid(), $request);

        self::assertSame(Response::HTTP_OK, $response->getStatusCode());
        self::assertSame('groups/booking/offer_unavailable.html.twig', $controller->renderedView);
    }

    public function testViewRendersOfferWhenSessionAuthorized(): void
    {
        $booking = new AccommodationBooking();
        $booking->setStatus(AccommodationBookingStatus::Open);
        $booking->setAccommodation(new Accommodation());

        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->with(['uuid' => $booking->getUuid()])->willReturn($booking);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->method('isSessionAuthorized')->willReturn(true);

        $breakdownCalculator = $this->createMock(AccommodationBookingBreakdownCalculator::class);
        $breakdownCalculator->method('compute')->with($booking)->willReturn(['total' => 1000]);

        $bookingService = $this->createMock(AccommodationBookingService::class);
        $bookingService->expects(self::never())->method('acceptBooking');
        $bookingService->method('loadHotelCmsData')->willReturn(null);

        $controller = new TestableOfferController($bookingRepository, $linkSigner, $breakdownCalculator, $bookingService);

        $request = Request::create('/groups/booking/offer/'.$booking->getUuid().'/view');
        $request->setSession(new Session(new MockArraySessionStorage()));
        $response = $controller->view($booking->getUuid(), $request);

        self::assertSame(Response::HTTP_OK, $response->getStatusCode());
        self::assertSame('<html>offer</html>', $response->getContent());
        self::assertSame('groups/booking/offer.html.twig', $controller->renderedView);
        self::assertSame($booking, $controller->renderedParameters['booking']);
        self::assertSame(['total' => 1000], $controller->renderedParameters['priceBreakdown']);
        self::assertSame($booking->getAccommodation(), $controller->renderedParameters['ctx']->accommodation);
    }

    public function testViewRendersUnavailableWhenSessionNotAuthorized(): void
    {
        $booking = new AccommodationBooking();

        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->willReturn($booking);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->method('isSessionAuthorized')->willReturn(false);

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $this->createMock(AccommodationBookingBreakdownCalculator::class),
            $this->createMock(AccommodationBookingService::class),
        );

        $response = $controller->view($booking->getUuid(), Request::create('/groups/booking/offer/'.$booking->getUuid().'/view'));

        self::assertSame(Response::HTTP_OK, $response->getStatusCode());
        self::assertSame('groups/booking/offer_unavailable.html.twig', $controller->renderedView);
    }

    public function testConfirmGetRendersModalWithFreshForm(): void
    {
        $booking = new AccommodationBooking();
        $booking->setStatus(AccommodationBookingStatus::Open);
        $booking->setRemarks("Bitte Zimmer im EG\nDanke!");

        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->with(['uuid' => $booking->getUuid()])->willReturn($booking);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->method('isSessionAuthorized')->willReturn(true);

        $confirmationForm = $this->createMock(FormInterface::class);
        $confirmationForm->method('handleRequest')->willReturnSelf();
        $confirmationForm->method('isSubmitted')->willReturn(false);

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $this->createMock(AccommodationBookingBreakdownCalculator::class),
            $this->createMock(AccommodationBookingService::class),
            $confirmationForm,
        );

        $response = $controller->confirm($booking->getUuid(), Request::create('/groups/booking/offer/'.$booking->getUuid().'/confirm'));

        self::assertSame(Response::HTTP_OK, $response->getStatusCode());
        self::assertSame('groups/booking/_offer_accept_confirmation_modal.html.twig', $controller->renderedView);
        self::assertSame($booking, $controller->renderedParameters['booking']);
        self::assertSame($confirmationForm, $controller->renderedParameters['confirmationForm']);

        self::assertInstanceOf(OfferAcceptDto::class, $controller->formData);
        self::assertSame("Bitte Zimmer im EG\nDanke!", $controller->formData->remarks, 'the stored remark is prefilled into the modal');
        self::assertFalse($controller->formData->termsAccepted);
    }

    public function testConfirmPostValidAcceptsBookingAndRedirects(): void
    {
        $booking = new AccommodationBooking();
        $booking->setStatus(AccommodationBookingStatus::Open);
        $booking->setRemarks('Bitte Zimmer im EG');

        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->willReturn($booking);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->method('isSessionAuthorized')->willReturn(true);

        $bookingService = $this->createMock(AccommodationBookingService::class);
        $bookingService->expects(self::once())->method('acceptBooking')->with($booking, 'Bitte Zimmer im EG');

        $confirmationForm = $this->createMock(FormInterface::class);
        $confirmationForm->method('handleRequest')->willReturnSelf();
        $confirmationForm->method('isSubmitted')->willReturn(true);
        $confirmationForm->method('isValid')->willReturn(true);

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $this->createMock(AccommodationBookingBreakdownCalculator::class),
            $bookingService,
            $confirmationForm,
        );

        $request = Request::create('/groups/booking/offer/'.$booking->getUuid().'/confirm', 'POST');
        $response = $controller->confirm($booking->getUuid(), $request);

        self::assertInstanceOf(RedirectResponse::class, $response);
        self::assertSame('/app_groups_booking_offer_view?uuid='.$booking->getUuid(), $response->getTargetUrl());
        self::assertSame([['type' => 'success', 'message' => 'Deine Buchung ist bei uns eingegangen. Sobald sie geprüft ist, erhältst du eine Bestätigung per E-Mail.']], $controller->flashes);
    }

    public function testConfirmPostValidViaHtmxReturnsHxRedirect(): void
    {
        $booking = new AccommodationBooking();
        $booking->setStatus(AccommodationBookingStatus::Open);

        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->willReturn($booking);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->method('isSessionAuthorized')->willReturn(true);

        $bookingService = $this->createMock(AccommodationBookingService::class);
        // No remark on the booking and none submitted: the empty string clears rather than keeps.
        $bookingService->expects(self::once())->method('acceptBooking')->with($booking, '');

        $confirmationForm = $this->createMock(FormInterface::class);
        $confirmationForm->method('handleRequest')->willReturnSelf();
        $confirmationForm->method('isSubmitted')->willReturn(true);
        $confirmationForm->method('isValid')->willReturn(true);

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $this->createMock(AccommodationBookingBreakdownCalculator::class),
            $bookingService,
            $confirmationForm,
        );

        $request = Request::create('/groups/booking/offer/'.$booking->getUuid().'/confirm', 'POST');
        $request->headers->set('HX-Request', 'true');
        $response = $controller->confirm($booking->getUuid(), $request);

        self::assertSame(Response::HTTP_OK, $response->getStatusCode());
        self::assertTrue($response->headers->has('HX-Redirect'));
    }

    public function testConfirmPostInvalidReRendersModalWithoutAccepting(): void
    {
        $booking = new AccommodationBooking();
        $booking->setStatus(AccommodationBookingStatus::Open);

        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->willReturn($booking);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->method('isSessionAuthorized')->willReturn(true);

        $bookingService = $this->createMock(AccommodationBookingService::class);
        $bookingService->expects(self::never())->method('acceptBooking');

        $confirmationForm = $this->createMock(FormInterface::class);
        $confirmationForm->method('handleRequest')->willReturnSelf();
        $confirmationForm->method('isSubmitted')->willReturn(true);
        $confirmationForm->method('isValid')->willReturn(false);

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $this->createMock(AccommodationBookingBreakdownCalculator::class),
            $bookingService,
            $confirmationForm,
        );

        $response = $controller->confirm($booking->getUuid(), Request::create('/groups/booking/offer/'.$booking->getUuid().'/confirm', 'POST'));

        self::assertSame(Response::HTTP_OK, $response->getStatusCode());
        self::assertFalse($response->headers->has('HX-Redirect'));
        self::assertSame('groups/booking/_offer_accept_confirmation_modal.html.twig', $controller->renderedView);
    }

    public function testConfirmRedirectsWhenAlreadyAccepted(): void
    {
        $booking = new AccommodationBooking();
        $booking->setStatus(AccommodationBookingStatus::Received);

        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->willReturn($booking);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->method('isSessionAuthorized')->willReturn(true);

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $this->createMock(AccommodationBookingBreakdownCalculator::class),
            $this->createMock(AccommodationBookingService::class),
        );

        $response = $controller->confirm($booking->getUuid(), Request::create('/groups/booking/offer/'.$booking->getUuid().'/confirm'));

        self::assertInstanceOf(RedirectResponse::class, $response);
    }

    public function testConfirmRedirectsWhenSessionNotAuthorized(): void
    {
        $booking = new AccommodationBooking();

        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->willReturn($booking);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->method('isSessionAuthorized')->willReturn(false);

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $this->createMock(AccommodationBookingBreakdownCalculator::class),
            $this->createMock(AccommodationBookingService::class),
        );

        $response = $controller->confirm($booking->getUuid(), Request::create('/groups/booking/offer/'.$booking->getUuid().'/confirm'));

        self::assertInstanceOf(RedirectResponse::class, $response);
    }

    public function testConfirmRedirectsForUnknownUuid(): void
    {
        $bookingRepository = $this->createMock(AccommodationBookingRepository::class);
        $bookingRepository->method('findOneBy')->willReturn(null);

        $linkSigner = $this->createMock(AccommodationBookingLinkSigner::class);
        $linkSigner->expects(self::never())->method('isSessionAuthorized');

        $controller = new TestableOfferController(
            $bookingRepository,
            $linkSigner,
            $this->createMock(AccommodationBookingBreakdownCalculator::class),
            $this->createMock(AccommodationBookingService::class),
        );

        $response = $controller->confirm('unknown-uuid', Request::create('/groups/booking/offer/unknown-uuid/confirm'));

        self::assertInstanceOf(RedirectResponse::class, $response);
    }
}

final class TestableOfferController extends OfferController
{
    public ?string $renderedView = null;

    /** @var array<string, mixed> */
    public array $renderedParameters = [];

    public mixed $formData = null;

    public function __construct(
        AccommodationBookingRepository $bookingRepository,
        AccommodationBookingLinkSigner $linkSigner,
        AccommodationBookingBreakdownCalculator $breakdownCalculator,
        AccommodationBookingService $bookingService,
        private readonly ?FormInterface $confirmationForm = null,
    ) {
        parent::__construct(
            $bookingRepository,
            $linkSigner,
            $breakdownCalculator,
            $bookingService,
            new AccommodationTermsUrlProvider(['AT' => '', 'CH' => '', 'IT' => ''], 'https://example.test/agb/'),
        );
    }

    protected function createForm(string $type, mixed $data = null, array $options = []): FormInterface
    {
        $this->formData = $data;

        return $this->confirmationForm ?? throw new \LogicException('No confirmation form mock configured for this test.');
    }

    protected function getParameter(string $name): array|bool|string|int|float|\UnitEnum|null
    {
        return 'https://example.test/agb/';
    }

    /**
     * @var array<int, array{type: string, message: mixed}>
     */
    public array $flashes = [];

    protected function addFlash(string $type, mixed $message): void
    {
        $this->flashes[] = ['type' => $type, 'message' => $message];
    }

    /**
     * @param array<string, mixed> $parameters
     */
    protected function generateUrl(string $route, array $parameters = [], int $referenceType = 1): string
    {
        return '/'.$route.'?'.http_build_query($parameters);
    }

    protected function render(string $view, array $parameters = [], ?Response $response = null): Response
    {
        $this->renderedView = $view;
        $this->renderedParameters = $parameters;

        if ('groups/booking/offer.html.twig' === $view) {
            $content = null !== $parameters['booking']->getAcceptedAt() ? '<html>confirmed</html>' : '<html>offer</html>';
        } else {
            $content = '<html>unavailable</html>';
        }

        $response ??= new Response();
        $response->setContent($content);

        return $response;
    }
}