using ErrorOr;
using Musify.Application.Albums;
using Musify.Application.Tests.TestSupport;
using Xunit;

namespace Musify.Application.Tests.Albums;

public sealed class GetAlbumCoverQueryHandlerTests : HandlerTestBase
{
    private GetAlbumCoverQueryHandler CreateHandler() =>
        new(Database, TestConfigurations.Storage("covers-bucket"), TestConfigurations.Album());

    [Theory]
    [InlineData("small", "small.webp")]
    [InlineData("large", "large.webp")]
    [InlineData("medium", "medium.webp")]
    public async Task Handle_ExistingAlbum_ReturnsRequestedSize(string size, string expectedFileName)
    {
        var owner = TestEntities.User();
        var album = TestEntities.Album(owner.Id);
        await SeedAsync(owner, album);

        var result = await CreateHandler().Handle(new GetAlbumCoverQuery(album.Id, size), TestContext.Current.CancellationToken);

        Assert.False(result.IsError);
        Assert.Equal("covers-bucket", result.Value.Bucket);
        Assert.EndsWith(expectedFileName, result.Value.Key);
    }

    [Fact]
    public async Task Handle_AlbumMissing_ReturnsNotFound()
    {
        var result = await CreateHandler().Handle(new GetAlbumCoverQuery(Guid.NewGuid(), "small"), TestContext.Current.CancellationToken);

        Assert.Equal(ErrorType.NotFound, result.FirstError.Type);
    }

    [Fact]
    public async Task Handle_PicturesStillProcessing_FallsBackToTheOriginal()
    {
        var owner = TestEntities.User();
        var album = TestEntities.Album(owner.Id, pictures: Musify.Domain.ValueObjects.EntityPictures.Pending("original.png"));
        await SeedAsync(owner, album);

        var result = await CreateHandler().Handle(new GetAlbumCoverQuery(album.Id, "small"), TestContext.Current.CancellationToken);

        Assert.False(result.IsError);
        Assert.Contains($"{owner.Id}", result.Value.Key);
        Assert.EndsWith("original.png", result.Value.Key);
        Assert.Equal("image/png", result.Value.ContentType);
    }
}