<?php

declare(strict_types=1);

namespace App\Tests\Controller\Booking\Create;

use App\BusProNet\Model\Room;
use App\BusProNet\Model\Travel;
use App\Controller\Booking\Create\Step1Controller;
use App\Form\Model\BookingCreateContext;
use App\Form\Model\BookingDto;
use App\Form\Model\BookingSummaryDto;
use App\Form\Model\RoomGroupsDto;
use App\Form\Model\RoomSelectionDto;
use App\Service\BookingAvailabilityRefreshResult;
use App\Service\BookingConfigurator;
use App\Service\BookingCreateContextFactory;
use App\Service\BookingSessionManager;
use PHPUnit\Framework\TestCase;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\RedirectResponse;

class Step1ControllerTest extends TestCase
{
    public function testIndexRefreshesBaselineAfterAutoPruningUnavailableRooms(): void
    {
        $request = Request::create('/bookings/create/rooms', 'GET');
        $bookingDto = $this->createBookingDtoWithUnavailableSelection();

        $bookingSessionService = $this->createMock(BookingSessionManager::class);
        $bookingSessionService->expects($this->once())
            ->method('getOrCreateBookingCreateDto')
            ->with($request)
            ->willReturn($bookingDto);
        $bookingSessionService->expects($this->once())
            ->method('getOrCreateBaselineSnapshot')
            ->with($request, $bookingDto)
            ->willReturn([[2, 1]]);
        $bookingSessionService->expects($this->once())
            ->method('refreshCreateAvailability')
            ->with($request, $bookingDto)
            ->willReturn(new BookingAvailabilityRefreshResult(
                availabilityRefreshed: true,
                roomSelectionQuantityReset: true,
                roomSelectionSnapshotChanged: true,
                hasAvailableRooms: true,
            ));
        $bookingSessionService->expects($this->once())
            ->method('saveBaselineSnapshot')
            ->with($request, $bookingDto);

        $bookingService = $this->createMock(BookingConfigurator::class);

        $form = $this->createMock(FormInterface::class);
        $form->expects($this->once())
            ->method('handleRequest')
            ->with($request)
            ->willReturnSelf();
        $form->expects($this->once())
            ->method('isSubmitted')
            ->willReturn(false);

        $createContextFactory = $this->createMock(BookingCreateContextFactory::class);
        $createContextFactory->expects($this->once())
            ->method('create')
            ->with($bookingDto, $this->anything())
            ->willReturn(new BookingCreateContext(
                bookingDto: $bookingDto,
                summaryData: $this->createMock(BookingSummaryDto::class),
                groupedRooms: new RoomGroupsDto([], []),
            ));

        $controller = new TestableStep1Controller(
            $bookingService,
            $bookingSessionService,
            $createContextFactory,
            $form,
        );

        $response = $controller->index($request);

        $this->assertInstanceOf(Response::class, $response);
        $this->assertSame(['warning', 'Mindestens eine Zimmerauswahl ist nicht mehr verfügbar und wurde zurückgesetzt.'], $controller->flashes[0]);
    }

    public function testIndexUsesPrunedBaselineBeforeSubmittingUnchangedSelections(): void
    {
        $request = Request::create('/bookings/create/rooms', 'POST');
        $bookingDto = $this->createBookingDtoWithUnavailableSelection();

        $bookingDto = $this->getMockBuilder(BookingDto::class)
            ->setConstructorArgs([$bookingDto->travel, $bookingDto->hotelId])
            ->onlyMethods(['hasRoomSelectionChanged', 'resetParticipantAssignments'])
            ->getMock();

        $bookingDto->roomSelections = $this->createBookingDtoWithUnavailableSelection()->roomSelections;
        $bookingDto->currentStep = 1;

        $bookingSessionService = $this->createMock(BookingSessionManager::class);
        $bookingSessionService->expects($this->once())
            ->method('getOrCreateBookingCreateDto')
            ->with($request)
            ->willReturn($bookingDto);
        $bookingSessionService->expects($this->once())
            ->method('getOrCreateBaselineSnapshot')
            ->with($request, $bookingDto)
            ->willReturn([[1, 0], [2, 1]]);
        $bookingSessionService->expects($this->once())
            ->method('refreshCreateAvailability')
            ->with($request, $bookingDto)
            ->willReturn(new BookingAvailabilityRefreshResult(
                availabilityRefreshed: true,
                roomSelectionQuantityReset: true,
                roomSelectionSnapshotChanged: true,
                hasAvailableRooms: true,
            ));
        $bookingSessionService->expects($this->once())
            ->method('saveBookingDto')
            ->with($request, $bookingDto, BookingDto::MODE_CREATE);
        $bookingSessionService->expects($this->once())
            ->method('saveBaselineSnapshot')
            ->with($request, $bookingDto)
            ->willReturn([[1, 0]]);
        $bookingSessionService->expects($this->once())
            ->method('clearBaselineSnapshot')
            ->with($request);

        $bookingService = $this->createMock(BookingConfigurator::class);
        $bookingService->expects($this->once())
            ->method('updateBookingStatusFromRoomSelection')
            ->with($bookingDto);

        $bookingDto->expects($this->never())
            ->method('resetParticipantAssignments');
        $bookingDto->expects($this->once())
            ->method('hasRoomSelectionChanged')
            ->with([[1, 0]])
            ->willReturn(false);

        $form = $this->createMock(FormInterface::class);
        $form->expects($this->once())
            ->method('handleRequest')
            ->with($request)
            ->willReturnSelf();
        $form->expects($this->once())
            ->method('isSubmitted')
            ->willReturn(true);
        $form->expects($this->once())
            ->method('isValid')
            ->willReturn(true);

        $createContextFactory = $this->createMock(BookingCreateContextFactory::class);
        $createContextFactory->expects($this->never())
            ->method('create');

        $controller = new TestableStep1Controller(
            $bookingService,
            $bookingSessionService,
            $createContextFactory,
            $form,
        );

        $response = $controller->index($request);

        $this->assertInstanceOf(Response::class, $response);
    }

    private function createBookingDtoWithUnavailableSelection(): BookingDto
    {
        $travel = new Travel();
        $travel->id = 1234;

        $availableRoom = new Room();
        $availableRoom->id = 1;
        $availableRoom->label = 'Doppelzimmer';
        $availableRoom->available = 2;
        $availableRoom->status = 'Frei';
        $travel->rooms = [$availableRoom];

        $bookingDto = new BookingDto($travel, 77);

        $selection = new RoomSelectionDto();
        $selection->id = 2;
        $selection->quantity = 1;
        $bookingDto->roomSelections = [$selection];

        return $bookingDto;
    }
}

final class TestableStep1Controller extends Step1Controller
{
    /**
     * @var array<int, array{string, mixed}>
     */
    public array $flashes = [];

    /**
     * @param FormInterface<mixed> $form
     */
    public function __construct(
        BookingConfigurator $bookingService,
        BookingSessionManager $bookingSessionService,
        BookingCreateContextFactory $createContextFactory,
        private readonly FormInterface $form,
    ) {
        parent::__construct($bookingService, $bookingSessionService, $createContextFactory);
    }

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

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

    /**
     * @param array<string, mixed> $parameters
     */
    protected function render(string $view, array $parameters = [], ?Response $response = null): Response
    {
        return new Response('rendered:'.$view);
    }

    protected function redirectToRoute(string $route, array $parameters = [], int $status = 302): RedirectResponse
    {
        return new RedirectResponse('redirect:'.$route, $status);
    }

    protected function generateUrl(string $route, array $parameters = [], int $referenceType = 0): string
    {
        return $route;
    }
}