using System.Reflection;
using ErsatzTV.Application.Libraries;
using ErsatzTV.Controllers.Api;
using ErsatzTV.Core.Api.Libraries;
using ErsatzTV.Core.Interfaces.Repositories;
using MediatR;
using Microsoft.AspNetCore.Mvc.Routing;
using NSubstitute;
using NUnit.Framework;
using Shouldly;

namespace ErsatzTV.Tests.Controllers;

[TestFixture]
public class LibrariesControllerTests
{
    private LibrariesController _controller = null!;
    private IMediator _mediator = null!;

    [SetUp]
    public void SetUp()
    {
        _mediator = Substitute.For<IMediator>();
        _controller = new LibrariesController(Substitute.For<ITelevisionRepository>(), _mediator);
    }

    [Test]
    public void ScanStatus_Should_Expose_Idiomatic_Rest_Route()
    {
        MethodInfo action = typeof(LibrariesController).GetMethod(nameof(LibrariesController.GetScanStatus))
            ?? throw new AssertionException("Missing action GetScanStatus");

        HttpMethodAttribute attribute = action.GetCustomAttributes<HttpMethodAttribute>(inherit: true).Single();
        attribute.HttpMethods.ShouldContain("GET");
        attribute.Template.ShouldBe("/api/libraries/scan-status");
        attribute.Name.ShouldBe("GetLibraryScanStatus");
    }

    [Test]
    public async Task GetScanStatus_Should_Return_Results_From_Mediator()
    {
        var expected = new List<LibraryScanStatusResponseModel>
        {
            new(1, 42.5m),
            new(2, 99m)
        };

        _mediator.Send(Arg.Any<GetLibraryScanStatus>(), Arg.Any<CancellationToken>())
            .Returns(expected);

        List<LibraryScanStatusResponseModel> result = await _controller.GetScanStatus(CancellationToken.None);

        result.ShouldBe(expected);
    }
}