using Musify.Application.Configuration;
using Musify.Domain.Entities;
using Musify.Domain.ValueObjects;
using Musify.Infrastructure.MassTransit.RoutingSlip;
using Musify.Infrastructure.MassTransit.RoutingSlip.Builders;
using Musify.Infrastructure.Tests.TestSupport;
using Xunit;

namespace Musify.Infrastructure.Tests.MassTransit
{
    [Collection(InfrastructureCollection.Name)]
    public sealed class DeleteRoutingSlipBuilderTests(InfrastructureTestFixture fixture)
    {
        private static CancellationToken Ct => TestContext.Current.CancellationToken;

        [Fact]
        public async Task BuildAlbum_WithProcessedPictures_RemovesEveryPictureBeforeDeletingTheRow()
        {
            var album = await SeedAlbumAsync(new EntityPictures
            {
                OriginalName = "original.webp",
                SmallName = "small.webp",
                MediumName = "medium.webp",
                LargeName = "large.webp"
            });
            await using var database = fixture.CreateDatabase();

            var slip = (await CreateBuilder(database).BuildAlbumAsync(album.Id, album.OwnerUserId, null, Ct)).Build();

            Assert.Equal(
                [
                    ActivityNames.MarkAlbumAsRemoving,
                    ActivityNames.RemoveAlbumOriginalPicture,
                    ActivityNames.RemoveAlbumSmallPicture,
                    ActivityNames.RemoveAlbumMediumPicture,
                    ActivityNames.RemoveAlbumLargePicture,
                    ActivityNames.DeleteAlbumFromDb,
                ],
                slip.Itinerary.Select(activity => activity.Name));
        }

        [Fact]
        public async Task BuildAlbum_WithPendingPicture_OnlyRemovesTheOriginal()
        {
            var album = await SeedAlbumAsync(EntityPictures.Pending("original.webp"));
            await using var database = fixture.CreateDatabase();

            var slip = (await CreateBuilder(database).BuildAlbumAsync(album.Id, album.OwnerUserId, null, Ct)).Build();

            Assert.Equal(
                [ActivityNames.MarkAlbumAsRemoving, ActivityNames.RemoveAlbumOriginalPicture, ActivityNames.DeleteAlbumFromDb],
                slip.Itinerary.Select(activity => activity.Name));
        }

        [Fact]
        public async Task BuildAlbum_MissingAlbum_OnlyMarksAndDeletes()
        {
            await using var database = fixture.CreateDatabase();

            var slip = (await CreateBuilder(database).BuildAlbumAsync(Guid.NewGuid(), 1, null, Ct)).Build();

            Assert.Equal(
                [ActivityNames.MarkAlbumAsRemoving, ActivityNames.DeleteAlbumFromDb],
                slip.Itinerary.Select(activity => activity.Name));
        }

        [Fact]
        public async Task BuildPlayList_WithoutPictures_OnlyMarksAndDeletes()
        {
            var playList = await SeedPlayListAsync(pictures: null);
            await using var database = fixture.CreateDatabase();

            var slip = (await CreateBuilder(database).BuildPlayListAsync(playList.Id, playList.OwnerUserId, null, Ct)).Build();

            Assert.Equal(
                [ActivityNames.MarkPlayListAsRemoving, ActivityNames.DeletePlayListFromDb],
                slip.Itinerary.Select(activity => activity.Name));
        }

        [Fact]
        public async Task BuildPlayList_WithPictures_RemovesThemBetweenMarkAndDelete()
        {
            var playList = await SeedPlayListAsync(new EntityPictures { OriginalName = "original.webp", SmallName = "small.webp" });
            await using var database = fixture.CreateDatabase();

            var slip = (await CreateBuilder(database).BuildPlayListAsync(playList.Id, playList.OwnerUserId, null, Ct)).Build();

            Assert.Equal(
                [
                    ActivityNames.MarkPlayListAsRemoving,
                    ActivityNames.RemovePlayListOriginalPicture,
                    ActivityNames.RemovePlayListSmallPicture,
                    ActivityNames.DeletePlayListFromDb,
                ],
                slip.Itinerary.Select(activity => activity.Name));
        }

        [Fact]
        public async Task BuildTrack_Unprocessed_NeverRemovesTheSharedPresetPictures()
        {
            var track = await SeedTrackAsync(new TrackPictures { OriginalName = "original.webp", SmallName = "preset.webp" }, new TrackAudio { OriginalName = "audio.mp3" });
            await using var database = fixture.CreateDatabase();

            var slip = (await CreateBuilder(database).BuildTrackAsync(track.Id, track.OwnerUserId, null, Ct)).Build();

            Assert.Equal(
                [
                    ActivityNames.MarkTrackAsRemoving,
                    ActivityNames.RemoveTrackOriginalPicture,
                    ActivityNames.RemoveTrackOriginalAudio,
                    ActivityNames.DeleteTrackFromDb,
                ],
                slip.Itinerary.Select(activity => activity.Name));
        }

        [Fact]
        public async Task BuildTrack_Processed_RemovesResizedPicturesAndProcessedAudio()
        {
            var track = await SeedTrackAsync(
                new TrackPictures
                {
                    OriginalName = "original.webp",
                    SmallName = "s.webp",
                    MediumName = "m.webp",
                    LargeName = "l.webp",
                    ProcessingStatus = ProcessingStatus.Completed
                },
                new TrackAudio { OriginalName = "audio.mp3", FolderName = "folder", TranscodeStatus = ProcessingStatus.Completed });
            await using var database = fixture.CreateDatabase();

            var slip = (await CreateBuilder(database).BuildTrackAsync(track.Id, track.OwnerUserId, null, Ct)).Build();

            Assert.Equal(
                [
                    ActivityNames.MarkTrackAsRemoving,
                    ActivityNames.RemoveTrackOriginalPicture,
                    ActivityNames.RemoveTrackSmallPicture,
                    ActivityNames.RemoveTrackMediumPicture,
                    ActivityNames.RemoveTrackLargePicture,
                    ActivityNames.RemoveTrackOriginalAudio,
                    ActivityNames.RemoveTrackProcessedAudio,
                    ActivityNames.DeleteTrackFromDb,
                ],
                slip.Itinerary.Select(activity => activity.Name));
        }

        private static DeleteRoutingSlipBuilder CreateBuilder(Musify.Application.Contracts.IDatabase database) =>
            new(
                database,
                new TrackConfiguration(),
                new AlbumConfiguration(),
                new PlayListConfiguration(),
                new ApplicationStorageConfiguration { Bucket = "bucket" });

        private async Task<User> SeedUserAsync()
        {
            await using var database = fixture.CreateDatabase();
            var name = $"delete-{Guid.NewGuid():N}"[..30];
            var user = new User { Id = Random.Shared.NextInt64(1, long.MaxValue), Name = name, NormalizedName = name.ToUpperInvariant() };
            await database.Users.AddAsync(user, Ct);
            await database.SaveChangesAsync(Ct);
            return user;
        }

        private async Task<Album> SeedAlbumAsync(EntityPictures? pictures)
        {
            var user = await SeedUserAsync();
            await using var database = fixture.CreateDatabase();
            var title = $"album-{Guid.NewGuid():N}";
            var album = new Album { Title = title, NormalizedTitle = title.ToUpperInvariant(), OwnerUserId = user.Id, Pictures = pictures };
            await database.Albums.AddAsync(album, Ct);
            await database.SaveChangesAsync(Ct);
            return album;
        }

        private async Task<PlayList> SeedPlayListAsync(EntityPictures? pictures)
        {
            var user = await SeedUserAsync();
            await using var database = fixture.CreateDatabase();
            var name = $"pl-{Guid.NewGuid():N}"[..30];
            var playList = new PlayList { Name = name, NormalizedName = name.ToUpperInvariant(), OwnerUserId = user.Id, Pictures = pictures };
            await database.PlayLists.AddAsync(playList, Ct);
            await database.SaveChangesAsync(Ct);
            return playList;
        }

        private async Task<Track> SeedTrackAsync(TrackPictures pictures, TrackAudio audio)
        {
            var user = await SeedUserAsync();
            await using var database = fixture.CreateDatabase();
            var title = $"track-{Guid.NewGuid():N}";
            var track = new Track
            {
                Title = title,
                NormalizedTitle = title.ToUpperInvariant(),
                DurationSeconds = 10,
                OwnerUserId = user.Id,
                Pictures = pictures,
                Audio = audio
            };
            await database.Tracks.AddAsync(track, Ct);
            await database.SaveChangesAsync(Ct);
            return track;
        }
    }
}