<?php

declare(strict_types=1);

namespace App\Tests\Controller\Admin\AccommodationBooking;

use App\Controller\Admin\AccommodationBooking\DeleteController;
use App\Entity\Groups\Accommodation;
use App\Entity\Groups\AccommodationBooking;
use App\Enum\Groups\AccommodationBookingStatus;
use Doctrine\ORM\EntityManagerInterface;
use PHPUnit\Framework\TestCase;
use Psr\Log\LoggerInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Security\Core\Exception\AccessDeniedException;

/**
 * Covers the guards around removing a draft outright.
 */
class DeleteControllerTest extends TestCase
{
    public function testGetRendersTheConfirmationModal(): void
    {
        $entityManager = $this->createMock(EntityManagerInterface::class);
        $entityManager->expects(self::never())->method('remove');

        $controller = $this->buildController($entityManager);

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

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

    public function testPostRemovesTheDraftAndReturnsToTheList(): void
    {
        $booking = $this->draft();

        $entityManager = $this->createMock(EntityManagerInterface::class);
        $entityManager->expects(self::once())->method('remove')->with($booking);
        $entityManager->expects(self::once())->method('flush');

        $controller = $this->buildController($entityManager);

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

        self::assertSame(
            '/admin/accommodation-booking?page=2',
            $response->headers->get('HX-Redirect'),
            'the filtered list the delete was started from has to survive the round trip',
        );
        self::assertSame('success', $controller->flashes[0]['type']);
    }

    /**
     * @dataProvider undeletableStatuses
     */
    public function testOnlyADraftCanBeDeleted(AccommodationBookingStatus $status): void
    {
        // Anything past Entwurf has been in contact with the customer and is closed by an
        // Absage instead, which keeps the record readable.
        $booking = $this->draft();
        $booking->setStatus($status);

        $entityManager = $this->createMock(EntityManagerInterface::class);
        $entityManager->expects(self::never())->method('remove');
        $entityManager->expects(self::never())->method('flush');

        $controller = $this->buildController($entityManager);

        $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 undeletableStatuses(): iterable
    {
        yield 'requested' => [AccommodationBookingStatus::Requested];
        yield 'open' => [AccommodationBookingStatus::Open];
        yield 'received' => [AccommodationBookingStatus::Received];
        yield 'confirmed' => [AccommodationBookingStatus::Confirmed];
        yield 'discarded' => [AccommodationBookingStatus::Discarded];
    }

    public function testPostWithAnInvalidTokenIsDenied(): void
    {
        $entityManager = $this->createMock(EntityManagerInterface::class);
        $entityManager->expects(self::never())->method('remove');

        $controller = $this->buildController($entityManager, tokenValid: false);

        $this->expectException(AccessDeniedException::class);

        $controller->index($this->draft(), $this->request('POST'));
    }

    private function draft(): AccommodationBooking
    {
        $booking = new AccommodationBooking();
        $booking->setStatus(AccommodationBookingStatus::Draft);
        $booking->setGroupName('Schulklasse 7b');
        $booking->setAccommodation((new Accommodation())->setName('Seehaus'));

        return $booking;
    }

    private function request(string $method = 'GET'): Request
    {
        // Every entry point is htmx — the dropdown opens the modal, the modal posts back.
        return Request::create(
            '/admin/accommodation-booking/1/delete?r=%2Fadmin%2Faccommodation-booking%3Fpage%3D2',
            $method,
            server: ['HTTP_HX-Request' => 'true'],
        );
    }

    private function buildController(
        EntityManagerInterface $entityManager,
        bool $tokenValid = true,
    ): TestableBookingDeleteController {
        return new TestableBookingDeleteController(
            $entityManager,
            $this->createMock(LoggerInterface::class),
            $tokenValid,
        );
    }
}

final class TestableBookingDeleteController extends DeleteController
{
    public ?string $renderedView = null;

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

    public function __construct(
        EntityManagerInterface $entityManager,
        LoggerInterface $logger,
        private readonly bool $tokenValid = true,
    ) {
        parent::__construct($entityManager, $logger);
    }

    protected function isCsrfTokenValid(string $id, #[\SensitiveParameter] ?string $token): bool
    {
        return $this->tokenValid;
    }

    /**
     * @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);
    }
}