<?php

declare(strict_types=1);

namespace ShlinkioTest\Shlink\Rest\Middleware;

use Fig\Http\Message\RequestMethodInterface;
use Laminas\Diactoros\Response;
use Laminas\Diactoros\ServerRequest;
use Mezzio\Router\Route;
use Mezzio\Router\RouteResult;
use PHPUnit\Framework\TestCase;
use Prophecy\Argument;
use Prophecy\PhpUnit\ProphecyTrait;
use Prophecy\Prophecy\ObjectProphecy;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
use Shlinkio\Shlink\Rest\Action\HealthAction;
use Shlinkio\Shlink\Rest\Authentication\Plugin\AuthenticationPluginInterface;
use Shlinkio\Shlink\Rest\Authentication\RequestToHttpAuthPluginInterface;
use Shlinkio\Shlink\Rest\Middleware\AuthenticationMiddleware;

use function Laminas\Stratigility\middleware;

class AuthenticationMiddlewareTest extends TestCase
{
    use ProphecyTrait;

    private AuthenticationMiddleware $middleware;
    private ObjectProphecy $requestToPlugin;

    public function setUp(): void
    {
        $this->requestToPlugin = $this->prophesize(RequestToHttpAuthPluginInterface::class);
        $this->middleware = new AuthenticationMiddleware($this->requestToPlugin->reveal(), [HealthAction::class]);
    }

    /**
     * @test
     * @dataProvider provideWhitelistedRequests
     */
    public function someWhiteListedSituationsFallbackToNextMiddleware(ServerRequestInterface $request): void
    {
        $handler = $this->prophesize(RequestHandlerInterface::class);
        $handle = $handler->handle($request)->willReturn(new Response());
        $fromRequest = $this->requestToPlugin->fromRequest(Argument::any())->willReturn(
            $this->prophesize(AuthenticationPluginInterface::class)->reveal(),
        );

        $this->middleware->process($request, $handler->reveal());

        $handle->shouldHaveBeenCalledOnce();
        $fromRequest->shouldNotHaveBeenCalled();
    }

    public function provideWhitelistedRequests(): iterable
    {
        $dummyMiddleware = $this->getDummyMiddleware();

        yield 'with no route result' => [new ServerRequest()];
        yield 'with failure route result' => [(new ServerRequest())->withAttribute(
            RouteResult::class,
            RouteResult::fromRouteFailure([RequestMethodInterface::METHOD_GET]),
        )];
        yield 'with whitelisted route' => [(new ServerRequest())->withAttribute(
            RouteResult::class,
            RouteResult::fromRoute(
                new Route('foo', $dummyMiddleware, Route::HTTP_METHOD_ANY, HealthAction::class),
            ),
        )];
        yield 'with OPTIONS method' => [(new ServerRequest())->withAttribute(
            RouteResult::class,
            RouteResult::fromRoute(new Route('bar', $dummyMiddleware), []),
        )->withMethod(RequestMethodInterface::METHOD_OPTIONS)];
    }

    /** @test */
    public function updatedResponseIsReturnedWhenVerificationPasses(): void
    {
        $newResponse = new Response();
        $request = (new ServerRequest())->withAttribute(
            RouteResult::class,
            RouteResult::fromRoute(new Route('bar', $this->getDummyMiddleware()), []),
        );
        $plugin = $this->prophesize(AuthenticationPluginInterface::class);

        $verify = $plugin->verify($request)->will(function (): void {
        });
        $update = $plugin->update($request, Argument::type(ResponseInterface::class))->willReturn($newResponse);
        $fromRequest = $this->requestToPlugin->fromRequest(Argument::any())->willReturn($plugin->reveal());

        $handler = $this->prophesize(RequestHandlerInterface::class);
        $handle = $handler->handle($request)->willReturn(new Response());
        $response = $this->middleware->process($request, $handler->reveal());

        self::assertSame($response, $newResponse);
        $verify->shouldHaveBeenCalledOnce();
        $update->shouldHaveBeenCalledOnce();
        $handle->shouldHaveBeenCalledOnce();
        $fromRequest->shouldHaveBeenCalledOnce();
    }

    private function getDummyMiddleware(): MiddlewareInterface
    {
        return middleware(fn () => new Response\EmptyResponse());
    }
}