<?php

declare(strict_types=1);

namespace App\Tests\Controller\Admin\AccommodationBooking;

use App\Controller\Admin\AccommodationBooking\ChangeAccommodationController;
use App\Entity\Groups\Accommodation;
use App\Entity\Groups\AccommodationBooking;
use App\Enum\Groups\AccommodationBookingStatus;
use App\Service\AccommodationBookingService;
use PHPUnit\Framework\TestCase;
use Psr\Log\LoggerInterface;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

/**
 * Covers the guards around correcting the Gruppenhaus — the transition itself is tested in
 * AccommodationBookingServiceTest.
 */
class ChangeAccommodationControllerTest extends TestCase
{
    public function testGetRendersTheModalForADraft(): void
    {
        $bookingService = $this->createMock(AccommodationBookingService::class);
        $bookingService->expects(self::never())->method('changeAccommodation');

        $controller = $this->buildController($bookingService, $this->unsubmittedForm());

        $response = $controller->index($this->draft(), $this->request());

        self::assertSame(Response::HTTP_OK, $response->getStatusCode());
        self::assertSame('admin/accommodation_booking/modal_change_accommodation.html.twig', $controller->renderedView);
    }

    /**
     * @dataProvider lockedStatuses
     */
    public function testABookingThatHasLeftEntwurfCannotMoveHouse(AccommodationBookingStatus $status): void
    {
        // The customer may already be looking at the offer under their access link.
        $booking = $this->draft();
        $booking->setStatus($status);
        $selected = new Accommodation();

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

        $controller = $this->buildController($bookingService, $this->submittedForm($selected));

        $response = $controller->index($booking, $this->request('POST'));

        self::assertTrue($response->headers->has('HX-Redirect'));
        self::assertNull($controller->renderedView);
        self::assertSame('error', $controller->flashes[0]['type']);
    }

    /**
     * @return iterable<string, array{AccommodationBookingStatus}>
     */
    public static function lockedStatuses(): iterable
    {
        yield 'requested' => [AccommodationBookingStatus::Requested];
        yield 'open' => [AccommodationBookingStatus::Open];
        yield 'received' => [AccommodationBookingStatus::Received];
        yield 'confirmed' => [AccommodationBookingStatus::Confirmed];
        yield 'discarded' => [AccommodationBookingStatus::Discarded];
    }

    public function testAValidSubmitChangesTheHouseAndSendsTheBrowserBackToTheEditForm(): void
    {
        $booking = $this->draft();
        $selected = new Accommodation();

        $bookingService = $this->createMock(AccommodationBookingService::class);
        $bookingService->expects(self::once())->method('changeAccommodation')->with($booking, $selected);

        $controller = $this->buildController($bookingService, $this->submittedForm($selected));

        $response = $controller->index($booking, $this->request('POST'));

        self::assertSame(
            '/app_admin_accommodationbooking_edit?r=%2Fadmin%2Faccommodation-booking%3Fpage%3D2',
            $response->headers->get('HX-Redirect'),
            'the still-encoded return url has to survive so the edit page leads back to the list',
        );
        self::assertSame('success', $controller->flashes[0]['type']);
    }

    public function testPickingTheSameHouseIsNotReportedAsAChange(): void
    {
        $booking = $this->draft();
        $accommodation = $booking->getAccommodation();
        self::assertNotNull($accommodation);

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

        $controller = $this->buildController($bookingService, $this->submittedForm($accommodation));

        $response = $controller->index($booking, $this->request('POST'));

        self::assertTrue($response->headers->has('HX-Redirect'));
        self::assertSame([], $controller->flashes);
    }

    private function draft(): AccommodationBooking
    {
        $booking = new AccommodationBooking();
        $booking->setStatus(AccommodationBookingStatus::Draft);
        $booking->setAccommodation((new Accommodation())->setName('Seehaus'));

        return $booking;
    }

    private function request(string $method = 'GET'): Request
    {
        // Every entry point is htmx — the button opens the modal, the modal posts back — so
        // the header is what makes htmxRedirect() answer with HX-Redirect rather than a 302.
        return Request::create(
            '/admin/accommodation-booking/1/change-accommodation?r=%2Fadmin%2Faccommodation-booking%3Fpage%3D2',
            $method,
            server: ['HTTP_HX-Request' => 'true'],
        );
    }

    private function unsubmittedForm(): FormInterface
    {
        $form = $this->createMock(FormInterface::class);
        $form->method('handleRequest')->willReturn($form);
        $form->method('isSubmitted')->willReturn(false);

        return $form;
    }

    private function submittedForm(Accommodation $selected): FormInterface
    {
        $field = $this->createMock(FormInterface::class);
        $field->method('getData')->willReturn($selected);

        $form = $this->createMock(FormInterface::class);
        $form->method('handleRequest')->willReturn($form);
        $form->method('isSubmitted')->willReturn(true);
        $form->method('isValid')->willReturn(true);
        $form->method('get')->with('accommodation')->willReturn($field);

        return $form;
    }

    private function buildController(
        AccommodationBookingService $bookingService,
        FormInterface $form,
    ): TestableChangeAccommodationController {
        return new TestableChangeAccommodationController(
            $bookingService,
            $this->createMock(LoggerInterface::class),
            $form,
        );
    }
}

final class TestableChangeAccommodationController extends ChangeAccommodationController
{
    public ?string $renderedView = null;

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

    public function __construct(
        AccommodationBookingService $bookingService,
        LoggerInterface $logger,
        private readonly FormInterface $form,
    ) {
        parent::__construct($bookingService, $logger);
    }

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

    /**
     * @param array<string, mixed> $parameters
     */
    protected function render(string $view, array $parameters = [], ?Response $response = null): Response
    {
        $this->renderedView = $view;

        return new Response();
    }

    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);
    }
}