Kavita/API.Tests/Services/SeriesServiceTests.cs

using System;
using System.Collections.Generic;
using System.IO.Abstractions;
using System.Linq;
using System.Threading.Tasks;
using API.Data;
using API.Data.Repositories;
using API.DTOs;
using API.DTOs.CollectionTags;
using API.DTOs.Metadata;
using API.DTOs.SeriesDetail;
using API.Entities;
using API.Entities.Enums;
using API.Entities.Metadata;
using API.Extensions;
using API.Helpers.Builders;
using API.Services;
using API.Services.Plus;
using API.SignalR;
using API.Tests.Helpers;
using Hangfire;
using Hangfire.InMemory;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.FileProviders;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Hosting.Internal;
using Microsoft.Extensions.Logging;
using NSubstitute;
using Xunit;

namespace API.Tests.Services;

internal class MockHostingEnvironment : IHostEnvironment {
    public string ApplicationName { get => "API"; set => throw new NotImplementedException(); }
    public IFileProvider ContentRootFileProvider { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }

    public string ContentRootPath
    {
        get => throw new NotImplementedException();
        set => throw new NotImplementedException();
    }

    public string EnvironmentName { get => "Testing"; set => throw new NotImplementedException(); }
}


public class SeriesServiceTests : AbstractDbTest
{
    private readonly ISeriesService _seriesService;

    public SeriesServiceTests() : base()
    {
        var ds = new DirectoryService(Substitute.For<ILogger<DirectoryService>>(), new FileSystem()
        {

        });


        var locService = new LocalizationService(ds, new MockHostingEnvironment(),
            Substitute.For<IMemoryCache>(), Substitute.For<IUnitOfWork>());

        _seriesService = new SeriesService(_unitOfWork, Substitute.For<IEventHub>(),
            Substitute.For<ITaskScheduler>(), Substitute.For<ILogger<SeriesService>>(),
            Substitute.For<IScrobblingService>(), locService);
    }
    #region Setup

    protected override async Task ResetDb()
    {
        _context.Series.RemoveRange(_context.Series.ToList());
        _context.AppUserRating.RemoveRange(_context.AppUserRating.ToList());
        _context.Genre.RemoveRange(_context.Genre.ToList());
        _context.CollectionTag.RemoveRange(_context.CollectionTag.ToList());
        _context.Person.RemoveRange(_context.Person.ToList());
        _context.Library.RemoveRange(_context.Library.ToList());

        await _context.SaveChangesAsync();
    }

    private static UpdateRelatedSeriesDto CreateRelationsDto(Series series)
    {
        return new UpdateRelatedSeriesDto()
        {
            SeriesId = series.Id,
            Prequels = new List<int>(),
            Adaptations = new List<int>(),
            Characters = new List<int>(),
            Contains = new List<int>(),
            Doujinshis = new List<int>(),
            Others = new List<int>(),
            Sequels = new List<int>(),
            AlternativeSettings = new List<int>(),
            AlternativeVersions = new List<int>(),
            SideStories = new List<int>(),
            SpinOffs = new List<int>(),
            Editions = new List<int>()
        };
    }

    #endregion

    #region SeriesDetail

    [Fact]
    public async Task SeriesDetail_ShouldReturnSpecials()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .WithSeries(new SeriesBuilder("Test")

                .WithVolume(new VolumeBuilder("0")
                    .WithChapter(new ChapterBuilder("Omake").WithIsSpecial(true).WithTitle("Omake").WithPages(1).Build())
                    .WithChapter(new ChapterBuilder("Something SP02").WithIsSpecial(true).WithTitle("Something").WithPages(1).Build())
                    .Build())
                .WithVolume(new VolumeBuilder("2")
                    .WithChapter(new ChapterBuilder("21").WithPages(1).Build())
                    .WithChapter(new ChapterBuilder("21").WithPages(1).Build())
                    .Build())

                .WithVolume(new VolumeBuilder("3")
                    .WithChapter(new ChapterBuilder("31").WithPages(1).Build())
                    .WithChapter(new ChapterBuilder("32").WithPages(1).Build())
                    .Build())
                .Build())
            .Build());


        await _context.SaveChangesAsync();

        var expectedRanges = new[] {"Omake", "Something SP02"};

        var detail = await _seriesService.GetSeriesDetail(1, 1);
        Assert.NotEmpty(detail.Specials);
        Assert.True(2 == detail.Specials.Count());
        Assert.All(detail.Specials, dto => Assert.Contains(dto.Range, expectedRanges));
    }

    [Fact]
    public async Task SeriesDetail_ShouldReturnVolumesAndChapters()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .WithSeries(new SeriesBuilder("Test")

                .WithVolume(new VolumeBuilder("0")
                    .WithChapter(new ChapterBuilder("1").WithPages(1).Build())
                    .WithChapter(new ChapterBuilder("2").WithPages(1).Build())
                    .Build())
                .WithVolume(new VolumeBuilder("2")
                    .WithChapter(new ChapterBuilder("21").WithPages(1).Build())
                    .WithChapter(new ChapterBuilder("21").WithPages(1).Build())
                    .Build())

                .WithVolume(new VolumeBuilder("3")
                    .WithChapter(new ChapterBuilder("31").WithPages(1).Build())
                    .WithChapter(new ChapterBuilder("32").WithPages(1).Build())
                    .Build())
                .Build())
            .Build()
        );

        await _context.SaveChangesAsync();

        var detail = await _seriesService.GetSeriesDetail(1, 1);
        Assert.NotEmpty(detail.Chapters);
        Assert.Equal(6, detail.Chapters.Count());

        Assert.NotEmpty(detail.Volumes);
        Assert.Equal(2, detail.Volumes.Count()); // Volume 0 shouldn't be sent in Volumes
        Assert.All(detail.Volumes, dto => Assert.Contains(dto.Name, new[] {"Volume 2", "Volume 3"})); // Volumes get names mapped
    }

    [Fact]
    public async Task SeriesDetail_ShouldReturnVolumesAndChapters_ButRemove0Chapter()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .WithSeries(new SeriesBuilder("Test")

                .WithVolume(new VolumeBuilder("0")
                    .WithChapter(new ChapterBuilder("1").WithPages(1).Build())
                    .WithChapter(new ChapterBuilder("2").WithPages(1).Build())
                    .Build())
                .WithVolume(new VolumeBuilder("2")
                    .WithChapter(new ChapterBuilder("0").WithPages(1).Build())
                    .Build())

                .WithVolume(new VolumeBuilder("3")
                    .WithChapter(new ChapterBuilder("31").WithPages(1).Build())
                    .Build())
                .Build())
            .Build());

        await _context.SaveChangesAsync();

        var detail = await _seriesService.GetSeriesDetail(1, 1);
        Assert.NotEmpty(detail.Chapters);
        // volume 2 has a 0 chapter aka a single chapter that is represented as a volume. We don't show in Chapters area
        Assert.Equal(3, detail.Chapters.Count());

        Assert.NotEmpty(detail.Volumes);
        Assert.Equal(2, detail.Volumes.Count());
    }

    [Fact]
    public async Task SeriesDetail_ShouldReturnCorrectNaming_VolumeTitle()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .WithSeries(new SeriesBuilder("Test")
                .WithVolume(new VolumeBuilder("0")
                    .WithChapter(new ChapterBuilder("1").WithPages(1).Build())
                    .WithChapter(new ChapterBuilder("2").WithPages(1).Build())
                    .Build())
                .WithVolume(new VolumeBuilder("2")
                    .WithChapter(new ChapterBuilder("0").WithPages(1).Build())
                    .Build())

                .WithVolume(new VolumeBuilder("3")
                    .WithChapter(new ChapterBuilder("31").WithPages(1).Build())
                    .Build())
                .Build())
            .Build());

        await _context.SaveChangesAsync();

        var detail = await _seriesService.GetSeriesDetail(1, 1);
        Assert.NotEmpty(detail.Chapters);
        // volume 2 has a 0 chapter aka a single chapter that is represented as a volume. We don't show in Chapters area
        Assert.Equal(3, detail.Chapters.Count());

        Assert.NotEmpty(detail.Volumes);
        Assert.Equal(2, detail.Volumes.Count());

        Assert.Equal(string.Empty, detail.Chapters.First().VolumeTitle); // loose leaf chapter
        Assert.Equal("Volume 3", detail.Chapters.Last().VolumeTitle); // volume based chapter
    }

    [Fact]
    public async Task SeriesDetail_ShouldReturnChaptersOnly_WhenBookLibrary()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb", LibraryType.Book)
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .WithSeries(new SeriesBuilder("Test")

                .WithVolume(new VolumeBuilder("2")
                    .WithChapter(new ChapterBuilder("0").WithPages(1).Build())
                    .Build())

                .WithVolume(new VolumeBuilder("3")
                    .WithChapter(new ChapterBuilder("0").WithPages(1).Build())
                    .Build())
                .Build())
            .Build());


        await _context.SaveChangesAsync();

        var detail = await _seriesService.GetSeriesDetail(1, 1);
        Assert.NotEmpty(detail.Volumes);

        Assert.Empty(detail.Chapters); // A book library where all books are Volumes, will show no "chapters" on the UI because it doesn't make sense
        Assert.Equal(2, detail.Volumes.Count());
    }

    [Fact]
    public async Task SeriesDetail_WhenBookLibrary_ShouldReturnVolumesAndSpecial()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb", LibraryType.Book)
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .WithSeries(new SeriesBuilder("Test")

                .WithVolume(new VolumeBuilder("0")
                    .WithChapter(new ChapterBuilder("Ano Orokamono ni mo Kyakkou wo! - Volume 1.epub", "Ano Orokamono ni mo Kyakkou wo! - Volume 1.epub").WithIsSpecial(true).WithPages(1).Build())
                    .Build())
                .WithVolume(new VolumeBuilder("2")
                    .WithChapter(new ChapterBuilder("Ano Orokamono ni mo Kyakkou wo! - Volume 2.epub", "Ano Orokamono ni mo Kyakkou wo! - Volume 2.epub").WithPages(1).Build())
                    .Build())
                .Build())
            .Build());



        await _context.SaveChangesAsync();

        var detail = await _seriesService.GetSeriesDetail(1, 1);
        Assert.NotEmpty(detail.Volumes);
        Assert.Equal("2 - Ano Orokamono ni mo Kyakkou wo! - Volume 2", detail.Volumes.ElementAt(0).Name);

        Assert.NotEmpty(detail.Specials);
        Assert.Equal("Ano Orokamono ni mo Kyakkou wo! - Volume 1.epub", detail.Specials.ElementAt(0).Range);

        // A book library where all books are Volumes, will show no "chapters" on the UI because it doesn't make sense
        Assert.Empty(detail.Chapters);

        Assert.Equal(1, detail.Volumes.Count());
    }

    [Fact]
    public async Task SeriesDetail_ShouldSortVolumesByName()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb", LibraryType.Manga)
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .WithSeries(new SeriesBuilder("Test")

                .WithVolume(new VolumeBuilder("2")
                    .WithChapter(new ChapterBuilder("0").WithPages(1).Build())
                    .Build())

                .WithVolume(new VolumeBuilder("1.2")
                    .WithChapter(new ChapterBuilder("0").WithPages(1).Build())
                    .Build())
                .WithVolume(new VolumeBuilder("1")
                    .WithChapter(new ChapterBuilder("0").WithPages(1).Build())
                    .Build())
                .Build())
            .Build());


        await _context.SaveChangesAsync();

        var detail = await _seriesService.GetSeriesDetail(1, 1);
        Assert.Equal("Volume 1", detail.Volumes.ElementAt(0).Name);
        Assert.Equal("Volume 1.2", detail.Volumes.ElementAt(1).Name);
        Assert.Equal("Volume 2", detail.Volumes.ElementAt(2).Name);
    }


    #endregion


    #region UpdateRating

    [Fact]
    public async Task UpdateRating_ShouldSetRating()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb", LibraryType.Manga)
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .WithSeries(new SeriesBuilder("Test")

                .WithVolume(new VolumeBuilder("1")
                    .WithChapter(new ChapterBuilder("1").WithPages(1).Build())
                    .Build())
                .Build())
            .Build());


        await _context.SaveChangesAsync();


        var user = await _unitOfWork.UserRepository.GetUserByUsernameAsync("majora2007", AppUserIncludes.Ratings);

        JobStorage.Current = new InMemoryStorage();
        var result = await _seriesService.UpdateRating(user, new UpdateSeriesRatingDto()
        {
            SeriesId = 1,
            UserRating = 3,
        });

        Assert.True(result);

        var ratings = (await _unitOfWork.UserRepository.GetUserByUsernameAsync("majora2007", AppUserIncludes.Ratings))!
            .Ratings;
        Assert.NotEmpty(ratings);
        Assert.Equal(3, ratings.First().Rating);
    }

    [Fact]
    public async Task UpdateRating_ShouldUpdateExistingRating()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .WithSeries(new SeriesBuilder("Test")

                .WithVolume(new VolumeBuilder("1")
                    .WithChapter(new ChapterBuilder("1").WithPages(1).Build())
                    .Build())
                .Build())
            .Build());


        await _context.SaveChangesAsync();

        var user = await _unitOfWork.UserRepository.GetUserByUsernameAsync("majora2007", AppUserIncludes.Ratings);

        var result = await _seriesService.UpdateRating(user, new UpdateSeriesRatingDto()
        {
            SeriesId = 1,
            UserRating = 3,
        });

        Assert.True(result);

        JobStorage.Current = new InMemoryStorage();
        var ratings = (await _unitOfWork.UserRepository.GetUserByUsernameAsync("majora2007", AppUserIncludes.Ratings))
            .Ratings;
        Assert.NotEmpty(ratings);
        Assert.Equal(3, ratings.First().Rating);

        // Update the DB again

        var result2 = await _seriesService.UpdateRating(user, new UpdateSeriesRatingDto()
        {
            SeriesId = 1,
            UserRating = 5,
        });

        Assert.True(result2);

        var ratings2 = (await _unitOfWork.UserRepository.GetUserByUsernameAsync("majora2007", AppUserIncludes.Ratings))
            .Ratings;
        Assert.NotEmpty(ratings2);
        Assert.True(ratings2.Count == 1);
        Assert.Equal(5, ratings2.First().Rating);
    }

    [Fact]
    public async Task UpdateRating_ShouldClampRatingAt5()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .WithSeries(new SeriesBuilder("Test")

                .WithVolume(new VolumeBuilder("1")
                    .WithChapter(new ChapterBuilder("1").WithPages(1).Build())
                    .Build())
                .Build())
            .Build());

        await _context.SaveChangesAsync();

        var user = await _unitOfWork.UserRepository.GetUserByUsernameAsync("majora2007", AppUserIncludes.Ratings);

        var result = await _seriesService.UpdateRating(user, new UpdateSeriesRatingDto()
        {
            SeriesId = 1,
            UserRating = 10,
        });

        Assert.True(result);

        JobStorage.Current = new InMemoryStorage();
        var ratings = (await _unitOfWork.UserRepository.GetUserByUsernameAsync("majora2007",
                AppUserIncludes.Ratings))
            .Ratings;
        Assert.NotEmpty(ratings);
        Assert.Equal(5, ratings.First().Rating);
    }

    [Fact]
    public async Task UpdateRating_ShouldReturnFalseWhenSeriesDoesntExist()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb", LibraryType.Book)
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .WithSeries(new SeriesBuilder("Test")

                .WithVolume(new VolumeBuilder("1")
                    .WithChapter(new ChapterBuilder("1").WithPages(1).Build())
                    .Build())
                .Build())
            .Build());

        await _context.SaveChangesAsync();

        var user = await _unitOfWork.UserRepository.GetUserByUsernameAsync("majora2007", AppUserIncludes.Ratings);

        var result = await _seriesService.UpdateRating(user, new UpdateSeriesRatingDto()
        {
            SeriesId = 2,
            UserRating = 5,
        });

        Assert.False(result);

        var ratings = user.Ratings;
        Assert.Empty(ratings);
    }

    #endregion

    #region UpdateSeriesMetadata

    [Fact]
    public async Task UpdateSeriesMetadata_ShouldCreateEmptyMetadata_IfDoesntExist()
    {
        await ResetDb();
        var s = new SeriesBuilder("Test")
            .Build();
        s.Library = new LibraryBuilder("Test LIb", LibraryType.Book).Build();

        _context.Series.Add(s);
        await _context.SaveChangesAsync();

        var success = await _seriesService.UpdateSeriesMetadata(new UpdateSeriesMetadataDto()
        {
            SeriesMetadata = new SeriesMetadataDto()
            {
                SeriesId = 1,
                Genres = new List<GenreTagDto>() {new GenreTagDto() {Id = 0, Title = "New Genre"}}
            },
            CollectionTags = new List<CollectionTagDto>()
        });

        Assert.True(success);

        var series = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1);
        Assert.NotNull(series.Metadata);
        Assert.True(series.Metadata.Genres.Select(g => g.Title).Contains("New Genre".SentenceCase()));

    }

    [Fact]
    public async Task UpdateSeriesMetadata_ShouldCreateNewTags_IfNoneExist()
    {
        await ResetDb();
        var s = new SeriesBuilder("Test")
            .Build();
        s.Library = new LibraryBuilder("Test LIb", LibraryType.Book).Build();

        _context.Series.Add(s);
        await _context.SaveChangesAsync();

        var success = await _seriesService.UpdateSeriesMetadata(new UpdateSeriesMetadataDto()
        {
            SeriesMetadata = new SeriesMetadataDto()
            {
                SeriesId = 1,
                Genres = new List<GenreTagDto>() {new GenreTagDto() {Id = 0, Title = "New Genre"}},
                Tags = new List<TagDto>() {new TagDto() {Id = 0, Title = "New Tag"}},
                Characters = new List<PersonDto>() {new PersonDto() {Id = 0, Name = "Joe Shmo", Role = PersonRole.Character}},
                Colorists = new List<PersonDto>() {new PersonDto() {Id = 0, Name = "Joe Shmo", Role = PersonRole.Colorist}},
                Pencillers = new List<PersonDto>() {new PersonDto() {Id = 0, Name = "Joe Shmo 2", Role = PersonRole.Penciller}},
            },
            CollectionTags = new List<CollectionTagDto>()
            {
                new CollectionTagDto() {Id = 0, Promoted = false, Summary = string.Empty, CoverImageLocked = false, Title = "New Collection"}
            }
        });

        Assert.True(success);

        var series = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1);
        Assert.NotNull(series.Metadata);
        Assert.True(series.Metadata.Genres.Select(g => g.Title).Contains("New Genre".SentenceCase()));
        Assert.True(series.Metadata.People.All(g => g.Name is "Joe Shmo" or "Joe Shmo 2"));
        Assert.True(series.Metadata.Tags.Select(g => g.Title).Contains("New Tag".SentenceCase()));
        Assert.True(series.Metadata.CollectionTags.Select(g => g.Title).Contains("New Collection"));

    }

    [Fact]
    public async Task UpdateSeriesMetadata_ShouldRemoveExistingTags()
    {
        await ResetDb();
        var s = new SeriesBuilder("Test")
            .WithMetadata(new SeriesMetadataBuilder().Build())
            .Build();
        s.Library = new LibraryBuilder("Test LIb", LibraryType.Book).Build();

        var g = new GenreBuilder("Existing Genre").Build();
        s.Metadata.Genres = new List<Genre>() {g};
        _context.Series.Add(s);

        _context.Genre.Add(g);
        await _context.SaveChangesAsync();

        var success = await _seriesService.UpdateSeriesMetadata(new UpdateSeriesMetadataDto()
        {
            SeriesMetadata = new SeriesMetadataDto()
            {
                SeriesId = 1,
                Genres = new List<GenreTagDto>() {new () {Id = 0, Title = "New Genre"}},
            },
            CollectionTags = new List<CollectionTagDto>()
        });

        Assert.True(success);

        var series = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1);
        Assert.NotNull(series.Metadata);
        Assert.True(series.Metadata.Genres.Select(g1 => g1.Title).All(g2 => g2 == "New Genre".SentenceCase()));
        Assert.False(series.Metadata.GenresLocked); // GenreLocked is false unless the UI Explicitly says it should be locked
    }

    [Fact]
    public async Task UpdateSeriesMetadata_ShouldAddNewPerson_NoExistingPeople()
    {
        await ResetDb();
        var s = new SeriesBuilder("Test")
            .WithMetadata(new SeriesMetadataBuilder().Build())
            .Build();
        s.Library = new LibraryBuilder("Test LIb", LibraryType.Book).Build();

        var g = new PersonBuilder("Existing Person", PersonRole.Publisher).Build();
        _context.Series.Add(s);

        _context.Person.Add(g);
        await _context.SaveChangesAsync();

        var success = await _seriesService.UpdateSeriesMetadata(new UpdateSeriesMetadataDto()
        {
            SeriesMetadata = new SeriesMetadataDto()
            {
                SeriesId = 1,
                Publishers = new List<PersonDto>() {new () {Id = 0, Name = "Existing Person", Role = PersonRole.Publisher}},
            },
            CollectionTags = new List<CollectionTagDto>()
        });

        Assert.True(success);

        var series = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1);
        Assert.NotNull(series.Metadata);
        Assert.True(series.Metadata.People.Select(g => g.Name).All(g => g == "Existing Person"));
        Assert.False(series.Metadata.PublisherLocked); // PublisherLocked is false unless the UI Explicitly says it should be locked
    }

    [Fact]
    public async Task UpdateSeriesMetadata_ShouldAddNewPerson_ExistingPeople()
    {
        await ResetDb();
        var s = new SeriesBuilder("Test")
            .WithMetadata(new SeriesMetadataBuilder().Build())
            .Build();
        s.Library = new LibraryBuilder("Test LIb", LibraryType.Book).Build();
        var g = new PersonBuilder("Existing Person", PersonRole.Publisher).Build();
        s.Metadata.People = new List<Person>() {new PersonBuilder("Existing Writer", PersonRole.Writer).Build(),
            new PersonBuilder("Existing Translator", PersonRole.Translator).Build(), new PersonBuilder("Existing Publisher 2", PersonRole.Publisher).Build()};
        _context.Series.Add(s);

        _context.Person.Add(g);
        await _context.SaveChangesAsync();

        var success = await _seriesService.UpdateSeriesMetadata(new UpdateSeriesMetadataDto()
        {
            SeriesMetadata = new SeriesMetadataDto()
            {
                SeriesId = 1,
                Publishers = new List<PersonDto>() {new () {Id = 0, Name = "Existing Person", Role = PersonRole.Publisher}},
                PublishersLocked = true
            },
            CollectionTags = new List<CollectionTagDto>()
        });

        Assert.True(success);

        var series = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1);
        Assert.NotNull(series.Metadata);
        Assert.True(series.Metadata.People.Select(g => g.Name).All(g => g == "Existing Person"));
        Assert.True(series.Metadata.PublisherLocked);
    }


    [Fact]
    public async Task UpdateSeriesMetadata_ShouldRemoveExistingPerson()
    {
        await ResetDb();
        var s = new SeriesBuilder("Test")
            .WithMetadata(new SeriesMetadataBuilder().Build())
            .Build();
        s.Library = new LibraryBuilder("Test LIb", LibraryType.Book).Build();
        var g = new PersonBuilder("Existing Person", PersonRole.Publisher).Build();
        _context.Series.Add(s);

        _context.Person.Add(g);
        await _context.SaveChangesAsync();

        var success = await _seriesService.UpdateSeriesMetadata(new UpdateSeriesMetadataDto()
        {
            SeriesMetadata = new SeriesMetadataDto()
            {
                SeriesId = 1,
                Publishers = new List<PersonDto>() {},
            },
            CollectionTags = new List<CollectionTagDto>()
        });

        Assert.True(success);

        var series = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1);
        Assert.NotNull(series.Metadata);
        Assert.False(series.Metadata.People.Any());
    }

    [Fact]
    public async Task UpdateSeriesMetadata_ShouldLockIfTold()
    {
        await ResetDb();
        var s = new SeriesBuilder("Test")
            .WithMetadata(new SeriesMetadataBuilder().Build())
            .Build();
        s.Library = new LibraryBuilder("Test LIb", LibraryType.Book).Build();
        var g = new GenreBuilder("Existing Genre").Build();
        s.Metadata.Genres = new List<Genre>() {g};
        s.Metadata.GenresLocked = true;
        _context.Series.Add(s);

        _context.Genre.Add(g);
        await _context.SaveChangesAsync();

        var success = await _seriesService.UpdateSeriesMetadata(new UpdateSeriesMetadataDto()
        {
            SeriesMetadata = new SeriesMetadataDto()
            {
                SeriesId = 1,
                Genres = new List<GenreTagDto>() {new () {Id = 1, Title = "Existing Genre"}},
                GenresLocked = true
            },
            CollectionTags = new List<CollectionTagDto>()
        });

        Assert.True(success);

        var series = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1);
        Assert.NotNull(series.Metadata);
        Assert.True(series.Metadata.Genres.Select(g => g.Title).All(g => g == "Existing Genre".SentenceCase()));
        Assert.True(series.Metadata.GenresLocked);
    }

    [Fact]
    public async Task UpdateSeriesMetadata_ShouldNotUpdateReleaseYear_IfLessThan1000()
    {
        await ResetDb();
        var s = new SeriesBuilder("Test")
            .WithMetadata(new SeriesMetadataBuilder().Build())
            .Build();
        s.Library = new LibraryBuilder("Test LIb", LibraryType.Book).Build();
        _context.Series.Add(s);
        await _context.SaveChangesAsync();

        var success = await _seriesService.UpdateSeriesMetadata(new UpdateSeriesMetadataDto()
        {
            SeriesMetadata = new SeriesMetadataDto()
            {
                SeriesId = 1,
                ReleaseYear = 100,
            },
            CollectionTags = new List<CollectionTagDto>()
        });

        Assert.True(success);

        var series = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1);
        Assert.NotNull(series.Metadata);
        Assert.Equal(0, series.Metadata.ReleaseYear);
        Assert.False(series.Metadata.ReleaseYearLocked);
    }

    #endregion

    #region GetFirstChapterForMetadata

    private static Series CreateSeriesMock()
    {
        var file = new MangaFileBuilder("Test.cbz", MangaFormat.Archive, 1).Build();

        var series = new SeriesBuilder("Test")
            .WithVolume(new VolumeBuilder("0")
                .WithChapter(new ChapterBuilder("95").WithPages(1).WithFile(file).Build())
                .WithChapter(new ChapterBuilder("96").WithPages(1).WithFile(file).Build())
                .WithChapter(new ChapterBuilder("A Special Case").WithIsSpecial(true).WithFile(file).WithPages(1).Build())
                .Build())
            .WithVolume(new VolumeBuilder("1")
                .WithChapter(new ChapterBuilder("1").WithPages(1).WithFile(file).Build())
                .WithChapter(new ChapterBuilder("2").WithPages(1).WithFile(file).Build())
                .Build())

            .WithVolume(new VolumeBuilder("2")
                .WithChapter(new ChapterBuilder("21").WithPages(1).WithFile(file).Build())
                .WithChapter(new ChapterBuilder("22").WithPages(1).WithFile(file).Build())
                .Build())

            .WithVolume(new VolumeBuilder("3")
                .WithChapter(new ChapterBuilder("31").WithPages(1).WithFile(file).Build())
                .WithChapter(new ChapterBuilder("32").WithPages(1).WithFile(file).Build())
                .Build())
            .Build();
        series.Library = new LibraryBuilder("Test LIb", LibraryType.Book).Build();

        return series;
    }

    [Fact]
    public void GetFirstChapterForMetadata_Book_Test()
    {
        var series = CreateSeriesMock();

        var firstChapter = SeriesService.GetFirstChapterForMetadata(series);
        Assert.Same("1", firstChapter.Range);
    }

    [Fact]
    public void GetFirstChapterForMetadata_NonBook_ShouldReturnVolume1()
    {
        var series = CreateSeriesMock();

        var firstChapter = SeriesService.GetFirstChapterForMetadata(series);
        Assert.Same("1", firstChapter.Range);
    }

    [Fact]
    public void GetFirstChapterForMetadata_NonBook_ShouldReturnVolume1_WhenFirstChapterIsFloat()
    {
        var series = CreateSeriesMock();
        var files = new List<MangaFile>()
        {
            new MangaFileBuilder("Test.cbz", MangaFormat.Archive, 1).Build()
        };
        series.Volumes[1].Chapters = new List<Chapter>()
        {
            new ChapterBuilder("2").WithFiles(files).WithPages(1).Build(),
            new ChapterBuilder("1.1").WithFiles(files).WithPages(1).Build(),
            new ChapterBuilder("1.2").WithFiles(files).WithPages(1).Build(),
        };

        var firstChapter = SeriesService.GetFirstChapterForMetadata(series);
        Assert.Same("1.1", firstChapter.Range);
    }

    [Fact]
    public void GetFirstChapterForMetadata_NonBook_ShouldReturnChapter1_WhenFirstVolumeIs3()
    {
        var file = new MangaFileBuilder("Test.cbz", MangaFormat.Archive, 1).Build();

        var series = new SeriesBuilder("Test")
            .WithVolume(new VolumeBuilder("0")
                .WithChapter(new ChapterBuilder("1").WithPages(1).WithFile(file).Build())
                .WithChapter(new ChapterBuilder("2").WithPages(1).WithFile(file).Build())
                .Build())
            .WithVolume(new VolumeBuilder("2")
                .WithChapter(new ChapterBuilder("21").WithPages(1).WithFile(file).Build())
                .WithChapter(new ChapterBuilder("22").WithPages(1).WithFile(file).Build())
                .Build())
            .WithVolume(new VolumeBuilder("3")
                .WithChapter(new ChapterBuilder("31").WithPages(1).WithFile(file).Build())
                .WithChapter(new ChapterBuilder("32").WithPages(1).WithFile(file).Build())
                .Build())
            .Build();
        series.Library = new LibraryBuilder("Test LIb", LibraryType.Book).Build();

        var firstChapter = SeriesService.GetFirstChapterForMetadata(series);
        Assert.Same("1", firstChapter.Range);
    }

    #endregion

    #region SeriesRelation
    [Fact]
    public async Task UpdateRelatedSeries_ShouldAddAllRelations()
    {
        await ResetDb();
        _context.Library.Add(new Library()
        {
            AppUsers = new List<AppUser>()
            {
                new AppUser()
                {
                    UserName = "majora2007"
                }
            },
            Name = "Test LIb",
            Type = LibraryType.Book,
            Series = new List<Series>()
            {
                new SeriesBuilder("Test Series").Build(),
                new SeriesBuilder("Test Series Prequels").Build(),
                new SeriesBuilder("Test Series Sequels").Build(),
            }
        });

        await _context.SaveChangesAsync();

        var series1 = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1, SeriesIncludes.Related);
        // Add relations
        var addRelationDto = CreateRelationsDto(series1);
        addRelationDto.Adaptations.Add(2);
        addRelationDto.Sequels.Add(3);
        await _seriesService.UpdateRelatedSeries(addRelationDto);
        Assert.Equal(2, series1.Relations.Single(s => s.TargetSeriesId == 2).TargetSeriesId);
        Assert.Equal(3, series1.Relations.Single(s => s.TargetSeriesId == 3).TargetSeriesId);
    }

    [Fact]
    public async Task UpdateRelatedSeries_DeleteAllRelations()
    {
        await ResetDb();
        _context.Library.Add(new Library()
        {
            AppUsers = new List<AppUser>()
            {
                new AppUser()
                {
                    UserName = "majora2007"
                }
            },
            Name = "Test LIb",
            Type = LibraryType.Book,
            Series = new List<Series>()
            {
                new SeriesBuilder("Test Series").Build(),
                new SeriesBuilder("Test Series Prequels").Build(),
                new SeriesBuilder("Test Series Sequels").Build(),
            }
        });

        await _context.SaveChangesAsync();

        var series1 = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1, SeriesIncludes.Related);
        // Add relations
        var addRelationDto = CreateRelationsDto(series1);
        addRelationDto.Adaptations.Add(2);
        addRelationDto.Sequels.Add(3);
        await _seriesService.UpdateRelatedSeries(addRelationDto);
        Assert.Equal(2, series1.Relations.Single(s => s.TargetSeriesId == 2).TargetSeriesId);
        Assert.Equal(3, series1.Relations.Single(s => s.TargetSeriesId == 3).TargetSeriesId);

        // Remove relations
        var removeRelationDto = CreateRelationsDto(series1);
        await _seriesService.UpdateRelatedSeries(removeRelationDto);
        Assert.Empty(series1.Relations.Where(s => s.TargetSeriesId == 1));
        Assert.Empty(series1.Relations.Where(s => s.TargetSeriesId == 2));
    }


    [Fact]
    public async Task UpdateRelatedSeries_DeleteTargetSeries_ShouldSucceed()
    {
        await ResetDb();
        _context.Library.Add(new Library()
        {
            AppUsers = new List<AppUser>()
            {
                new AppUser()
                {
                    UserName = "majora2007"
                }
            },
            Name = "Test LIb",
            Type = LibraryType.Book,
            Series = new List<Series>()
            {
                new SeriesBuilder("Series A").Build(),
                new SeriesBuilder("Series B").Build(),
            }
        });

        await _context.SaveChangesAsync();

        var series1 = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1, SeriesIncludes.Related);
        // Add relations
        var addRelationDto = CreateRelationsDto(series1);
        addRelationDto.Adaptations.Add(2);
        await _seriesService.UpdateRelatedSeries(addRelationDto);
        Assert.Equal(2, series1.Relations.Single(s => s.TargetSeriesId == 2).TargetSeriesId);

        _context.Series.Remove(await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(2));
        try
        {
            await _context.SaveChangesAsync();
        }
        catch (Exception)
        {
            Assert.Fail("Delete of Target Series Failed");
        }

        // Remove relations
        Assert.Empty((await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1, SeriesIncludes.Related)).Relations);
    }

    [Fact]
    public async Task UpdateRelatedSeries_DeleteSourceSeries_ShouldSucceed()
    {
        await ResetDb();
        _context.Library.Add(new Library()
        {
            AppUsers = new List<AppUser>()
            {
                new AppUser()
                {
                    UserName = "majora2007"
                }
            },
            Name = "Test LIb",
            Type = LibraryType.Book,
            Series = new List<Series>()
            {
                new SeriesBuilder("Series A").Build(),
                new SeriesBuilder("Series B").Build(),
            }
        });

        await _context.SaveChangesAsync();

        var series1 = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1, SeriesIncludes.Related);
        // Add relations
        var addRelationDto = CreateRelationsDto(series1);
        addRelationDto.Adaptations.Add(2);
        await _seriesService.UpdateRelatedSeries(addRelationDto);
        Assert.Equal(2, series1.Relations.Single(s => s.TargetSeriesId == 2).TargetSeriesId);

        _context.Series.Remove(await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1));
        try
        {
            await _context.SaveChangesAsync();
        }
        catch (Exception)
        {
            Assert.Fail("Delete of Target Series Failed");
        }

        // Remove relations
        Assert.Empty((await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(2, SeriesIncludes.Related)).Relations);
    }

    [Fact]
    public async Task UpdateRelatedSeries_ShouldNotAllowDuplicates()
    {
        await ResetDb();
        _context.Library.Add(new Library()
        {
            AppUsers = new List<AppUser>()
            {
                new AppUser()
                {
                    UserName = "majora2007"
                }
            },
            Name = "Test LIb",
            Type = LibraryType.Book,
            Series = new List<Series>()
            {
                new SeriesBuilder("Test Series").Build(),
                new SeriesBuilder("Test Series Prequels").Build(),
            }
        });

        await _context.SaveChangesAsync();

        var series1 = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1, SeriesIncludes.Related);
        var relation = new SeriesRelation()
        {
            Series = series1,
            SeriesId = series1.Id,
            TargetSeriesId = 2, // Target series id
            RelationKind = RelationKind.Prequel

        };
        // Manually create a relation
        series1.Relations.Add(relation);

        // Create a new dto with the previous relation as well
        var relationDto = CreateRelationsDto(series1);
        relationDto.Adaptations.Add(2);

        await _seriesService.UpdateRelatedSeries(relationDto);
        // Expected is only one instance of the relation (hence not duping)
        Assert.Equal(2, series1.Relations.Single(s => s.TargetSeriesId == 2).TargetSeriesId);
    }

    [Fact]
    public async Task GetRelatedSeries_EditionPrequelSequel_ShouldNotHaveParent()
    {
        await ResetDb();
        _context.Library.Add(new Library()
        {
            AppUsers = new List<AppUser>()
            {
                new AppUser()
                {
                    UserName = "majora2007"
                }
            },
            Name = "Test LIb",
            Type = LibraryType.Book,
            Series = new List<Series>()
            {
                new SeriesBuilder("Test Series").Build(),
                new SeriesBuilder("Test Series Editions").Build(),
                new SeriesBuilder("Test Series Prequels").Build(),
                new SeriesBuilder("Test Series Sequels").Build(),
                new SeriesBuilder("Test Series Adaption").Build(),
            }
        });
        await _context.SaveChangesAsync();
        var series1 = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1, SeriesIncludes.Related);
        // Add relations
        var addRelationDto = CreateRelationsDto(series1);
        addRelationDto.Editions.Add(2);
        addRelationDto.Prequels.Add(3);
        addRelationDto.Sequels.Add(4);
        addRelationDto.Adaptations.Add(5);
        await _seriesService.UpdateRelatedSeries(addRelationDto);


        Assert.Empty(_seriesService.GetRelatedSeries(1, 2).Result.Parent);
        Assert.Empty(_seriesService.GetRelatedSeries(1, 3).Result.Parent);
        Assert.Empty(_seriesService.GetRelatedSeries(1, 4).Result.Parent);
        Assert.NotEmpty(_seriesService.GetRelatedSeries(1, 5).Result.Parent);
    }

    [Fact]
    public async Task SeriesRelation_ShouldAllowDeleteOnLibrary()
    {
        await ResetDb();
        var lib = new LibraryBuilder("Test LIb")
            .WithSeries(new SeriesBuilder("Test Series").Build())
            .WithSeries(new SeriesBuilder("Test Series Prequels").Build())
            .WithSeries(new SeriesBuilder("Test Series Sequels").Build())
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .Build();
        _context.Library.Add(lib);

        await _context.SaveChangesAsync();

        var series1 = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1, SeriesIncludes.Related);
        // Add relations
        var addRelationDto = CreateRelationsDto(series1);
        addRelationDto.Adaptations.Add(2);
        addRelationDto.Sequels.Add(3);
        await _seriesService.UpdateRelatedSeries(addRelationDto);

        var library = await _unitOfWork.LibraryRepository.GetLibraryForIdAsync(lib.Id);
        _unitOfWork.LibraryRepository.Delete(library);

        try
        {
            await _unitOfWork.CommitAsync();
        }
        catch (Exception)
        {
            Assert.False(true);
        }

        Assert.Null(await _unitOfWork.LibraryRepository.GetLibraryForIdAsync(1));
    }

    [Fact]
    public async Task SeriesRelation_ShouldAllowDeleteOnLibrary_WhenSeriesCrossLibraries()
    {
        await ResetDb();
        var lib1 = new LibraryBuilder("Test LIb")
            .WithSeries(new SeriesBuilder("Test Series")
                .WithVolume(new VolumeBuilder("0")
                    .WithChapter(new ChapterBuilder("1").WithFile(
                        new MangaFileBuilder($"{DataDirectory}1.zip", MangaFormat.Archive)
                            .WithPages(1)
                            .Build()
                        ).Build())
                    .Build())
                .Build())
            .WithSeries(new SeriesBuilder("Test Series Prequels").Build())
            .WithSeries(new SeriesBuilder("Test Series Sequels").Build())
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .Build();
        _context.Library.Add(lib1);

        var lib2 = new LibraryBuilder("Test LIb 2", LibraryType.Book)
            .WithSeries(new SeriesBuilder("Test Series 2").Build())
            .WithSeries(new SeriesBuilder("Test Series Prequels 2").Build())
            .WithSeries(new SeriesBuilder("Test Series Prequels 2").Build())// TODO: Is this a bug
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty).Build())
            .Build();
        _context.Library.Add(lib2);

        await _context.SaveChangesAsync();

        var series1 = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(1, SeriesIncludes.Related);
        // Add relations
        var addRelationDto = CreateRelationsDto(series1);
        addRelationDto.Adaptations.Add(4); // cross library link
        await _seriesService.UpdateRelatedSeries(addRelationDto);

        var library = await _unitOfWork.LibraryRepository.GetLibraryForIdAsync(lib1.Id, LibraryIncludes.Series);
        _unitOfWork.LibraryRepository.Delete(library);

        try
        {
            await _unitOfWork.CommitAsync();
        }
        catch (Exception)
        {
            Assert.False(true);
        }

        Assert.Null(await _unitOfWork.LibraryRepository.GetLibraryForIdAsync(1));
    }

    #endregion

    #region UpdateRelatedList

    // TODO: Implement UpdateRelatedList

    #endregion

    #region FormatChapterName

    [Theory]
    [InlineData(LibraryType.Manga, false, "Chapter")]
    [InlineData(LibraryType.Comic, false, "Issue")]
    [InlineData(LibraryType.Comic, true, "Issue #")]
    [InlineData(LibraryType.Book, false, "Book")]
    public async Task FormatChapterNameTest(LibraryType libraryType, bool withHash, string expected )
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty)
                .WithLocale("en")
                .Build())
            .Build());

        await _context.SaveChangesAsync();

        Assert.Equal(expected, await _seriesService.FormatChapterName(1, libraryType, withHash));
    }

    #endregion

    #region FormatChapterTitle

    [Fact]
    public async Task FormatChapterTitle_Manga_NonSpecial()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty)
                .WithLocale("en")
                .Build())
            .Build());

        await _context.SaveChangesAsync();

        var chapter = new ChapterBuilder("1").WithTitle("Some title").WithIsSpecial(false).Build();
        Assert.Equal("Chapter Some title", await _seriesService.FormatChapterTitle(1, chapter, LibraryType.Manga, false));
    }

    [Fact]
    public async Task FormatChapterTitle_Manga_Special()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty)
                .WithLocale("en")
                .Build())
            .Build());

        await _context.SaveChangesAsync();
        var chapter = new ChapterBuilder("1").WithTitle("Some title").WithIsSpecial(true).Build();
        Assert.Equal("Some title", await _seriesService.FormatChapterTitle(1, chapter, LibraryType.Manga, false));
    }

    [Fact]
    public async Task FormatChapterTitle_Comic_NonSpecial_WithoutHash()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty)
                .WithLocale("en")
                .Build())
            .Build());

        await _context.SaveChangesAsync();
        var chapter = new ChapterBuilder("1").WithTitle("Some title").WithIsSpecial(false).Build();
        Assert.Equal("Issue Some title", await _seriesService.FormatChapterTitle(1, chapter, LibraryType.Comic, false));
    }

    [Fact]
    public async Task FormatChapterTitle_Comic_Special_WithoutHash()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty)
                .WithLocale("en")
                .Build())
            .Build());

        await _context.SaveChangesAsync();
        var chapter = new ChapterBuilder("1").WithTitle("Some title").WithIsSpecial(true).Build();
        Assert.Equal("Some title", await _seriesService.FormatChapterTitle(1, chapter, LibraryType.Comic, false));
    }

    [Fact]
    public async Task FormatChapterTitle_Comic_NonSpecial_WithHash()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty)
                .WithLocale("en")
                .Build())
            .Build());

        await _context.SaveChangesAsync();
        var chapter = new ChapterBuilder("1").WithTitle("Some title").WithIsSpecial(false).Build();
        Assert.Equal("Issue #Some title", await _seriesService.FormatChapterTitle(1, chapter, LibraryType.Comic, true));
    }

    [Fact]
    public async Task FormatChapterTitle_Comic_Special_WithHash()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty)
                .WithLocale("en")
                .Build())
            .Build());

        await _context.SaveChangesAsync();
        var chapter = new ChapterBuilder("1").WithTitle("Some title").WithIsSpecial(true).Build();
        Assert.Equal("Some title", await _seriesService.FormatChapterTitle(1, chapter, LibraryType.Comic, true));
    }

    [Fact]
    public async Task FormatChapterTitle_Book_NonSpecial()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty)
                .WithLocale("en")
                .Build())
            .Build());

        await _context.SaveChangesAsync();
        var chapter = new ChapterBuilder("1").WithTitle("Some title").WithIsSpecial(false).Build();
        Assert.Equal("Book Some title", await _seriesService.FormatChapterTitle(1, chapter, LibraryType.Book, false));
    }

    [Fact]
    public async Task FormatChapterTitle_Book_Special()
    {
        await ResetDb();

        _context.Library.Add(new LibraryBuilder("Test LIb")
            .WithAppUser(new AppUserBuilder("majora2007", string.Empty)
                .WithLocale("en")
                .Build())
            .Build());

        await _context.SaveChangesAsync();
        var chapter = new ChapterBuilder("1").WithTitle("Some title").WithIsSpecial(true).Build();
        Assert.Equal("Some title", await _seriesService.FormatChapterTitle(1, chapter, LibraryType.Book, false));
    }

    #endregion
}