using Modules.Library.Domain.Entities;
using Modules.Library.Domain.Entities.MediaContent.CommonProperties;
using Modules.Library.Domain.Entities.MediaContent.Items.Anime;
using Modules.Library.Domain.Exceptions.Genre;
using Modules.Library.Domain.Gateways;

namespace Modules.Library.Domain.Interactors.MediaContent.Anime;

internal class CommonPropertiesService(ILanguageGateway languageGateway, IGenreGateway genreGateway)
{
    #region Name
    internal async Task AddName(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, NameType nameType, Guid languageId, string value)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        if (!await languageGateway.AnyWhere(q => q.Id == languageId)) throw new Exception("Language is not found");
        switch (nameType)
        {
            case NameType.Original:
                AddNameOriginal(commonProperties, languageId, value);
                break;
            case NameType.OriginalInAnotherLanguage:
                AddNameOriginalInAnotherLanguage(commonProperties, languageId, value);
                break;
            case NameType.Translation:
                AddNameTranslation(commonProperties, languageId, value);
                break;
            case NameType.Abbreviation:
                AddNameAbbreviation(commonProperties, languageId, value);
                break;
            default:
                throw new NotImplementedException();
        }
    }

    private static void AddNameOriginal(CommonProperties commonProperties, Guid languageId, string value)
    {
        if (string.IsNullOrWhiteSpace(value)) throw new ArgumentNullException(nameof(value));
        if (commonProperties.Names.Any(q => q.Type == NameType.Original)) throw new Exception("Original name is already exist.");
        commonProperties.Names.Add(new NameItem(languageId, NameType.Original, value));
    }

    private static void AddNameOriginalInAnotherLanguage(CommonProperties commonProperties, Guid languageId, string value)
    {
        if (string.IsNullOrWhiteSpace(value)) throw new ArgumentNullException(nameof(value));
        if (languageId == commonProperties.Names.SingleOrDefault(q => q.Type == NameType.Original)?.LanguageId)
            throw new Exception("Language must not match original name language");

        if (commonProperties.Names.Any(q => q.Type == NameType.OriginalInAnotherLanguage && q.LanguageId == languageId))
            throw new Exception("Name in following language is already exist.");
        commonProperties.Names.Add(new NameItem(languageId, NameType.OriginalInAnotherLanguage, value));
    }

    private static void AddNameTranslation(CommonProperties commonProperties, Guid languageId, string value)
    {
        if (string.IsNullOrWhiteSpace(value)) throw new ArgumentNullException(nameof(value));
        commonProperties.Names.Add(new NameItem(languageId, NameType.Translation, value));
    }
    
    private static void AddNameAbbreviation(CommonProperties commonProperties, Guid languageId, string value)
    {
        if (string.IsNullOrWhiteSpace(value)) throw new ArgumentNullException(nameof(value));
        commonProperties.Names.Add(new NameItem(languageId, NameType.Abbreviation, value));
    }

    internal static void RemoveName(CommonProperties commonProperties, Guid nameId)
    {
        var name = GetName(commonProperties, nameId);
        if (name.Type == NameType.Original) throw new Exception($"Unable to remove original name");
        commonProperties.Names.Remove(name);
    }

    internal static void SetNameValue(CommonProperties commonProperties, Guid nameId, string value)
    {
        if (string.IsNullOrWhiteSpace(value)) throw new ArgumentNullException(nameof(value));
        var name = GetName(commonProperties, nameId);
        if (name.Type != NameType.Original && commonProperties.Names.Any(q => q.LanguageId == name.LanguageId && q.Value == value))
            throw new Exception("Name item with in same language with same value is already exists");
        name.SetValue(value);
    }

    private static NameItem GetName(CommonProperties commonProperties, Guid nameId) => commonProperties.Names.FirstOrDefault(q => q.Id == nameId) ??
        throw new Exception($"Name with id [{nameId}] is not found");
    #endregion

    internal static void SetPreview(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, string url, MediaInfoType type)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        if (string.IsNullOrWhiteSpace(url)) throw new ArgumentNullException(nameof(url));
        commonProperties.Preview ??= new MediaInfo(url, type);
        commonProperties.Preview.Url = url;
    }

    internal static void DeletePreview(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        commonProperties.Preview = null;
    }

    #region Description
    internal async Task AddDescription(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, Guid languageId, bool isOriginal, string value)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        if (isOriginal)
        {
            if (!await languageGateway.AnyWhere(q => q.Id == languageId)) throw new Exception("Language is not found");
            if (commonProperties.Descriptions.Any(q => q.IsOriginal)) throw new Exception("Original description is already exist.");
        }
        if (!await languageGateway.AnyWhere(q => q.Id == languageId)) throw new Exception("Language is not found");
        var description = new DescriptionItem(languageId, isOriginal, value);
        commonProperties.Descriptions.Add(description);
    }

    internal static void RemoveDescription(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, Guid descriptionId)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        var description = GetDescription(commonProperties, descriptionId);
        if (description.IsOriginal) throw new Exception($"Unable to remove original description");
        commonProperties.Descriptions.Remove(description);
        
    }

    internal static void SetDescriptionValue(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, Guid descriptionId, string value)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        var name = GetDescription(commonProperties, descriptionId);
        SetDescriptionValue(commonProperties, name, value);
    }

    private static void SetDescriptionValue(CommonProperties commonProperties, DescriptionItem descriptionItem, string value)
    {
        if (string.IsNullOrWhiteSpace(value)) throw new ArgumentNullException(nameof(value));
        if (!descriptionItem.IsOriginal && commonProperties.Descriptions.Any(q => q.LanguageId == descriptionItem.LanguageId && q.Value == value))
            throw new Exception("Descriptoin item with with same value is already exists");
        descriptionItem.Value = value;
    }

    private static DescriptionItem GetDescription(CommonProperties commonProperties, Guid descriptionId)
    {
        return commonProperties.Descriptions.FirstOrDefault(q => q.Id == descriptionId) ??
            throw new Exception($"Description with id [{descriptionId}] is not found");
    }
    #endregion

    #region RelatedContent
    internal static void AddRelatedContent(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, string url, MediaInfoType type)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        if (string.IsNullOrWhiteSpace(url)) throw new ArgumentNullException(nameof(url));
        CheckIfCanAddOrEdit(commonProperties, url, type);
        commonProperties.RelatedContent.Add(new MediaInfo(url, type));
    }

    internal static void EditRelatedContent(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, Guid relatedContentId, string url, MediaInfoType type)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        var relatedContent = GetRelatedContent(commonProperties, relatedContentId);
        CheckIfCanAddOrEdit(commonProperties, url, type);
        relatedContent.Url = url;
        relatedContent.Type = type;
    }

    internal static void RemoveRelatedContent(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, Guid relatedContentId)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        var relatedContent = GetRelatedContent(commonProperties, relatedContentId);
        //_relatedContent.Remove(relatedContent);
        commonProperties.RelatedContent.Remove(relatedContent);
    }

    private static void CheckIfCanAddOrEdit(CommonProperties commonProperties, string url, MediaInfoType type)
    {
        if (commonProperties.RelatedContent.Any(q => q.Url == url && q.Type == type))
            throw new Exception("Related content with same url and same type is already exists");
    }

    private static MediaInfo GetRelatedContent(CommonProperties commonProperties, Guid relatedContentId)
    {
        return commonProperties.RelatedContent.FirstOrDefault(q => q.Id == relatedContentId) ??
            throw new Exception($"Related content with id [{relatedContentId}] is not found");
    }
    #endregion

    #region Genre
    internal async Task AddGenre(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, Guid genreId, decimal? proportion)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        if (!await genreGateway.AnyWhere(q => q.Id == genreId)) throw new GenreIsNotFoundException();
        commonProperties.Genres.Add(new GenreProportionItem(genreId, proportion));
    }

    internal static void SetGenreProportion(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, Guid genreProportionId, decimal? proportion)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        var genreProportion = commonProperties.Genres.First(q => q.GenreId == genreProportionId);
        genreProportion.Proportion = proportion;
    }

    internal static void RemoveGenre(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, Guid genreProportionId, decimal? proportion)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        var genreProportion = commonProperties.Genres.First(q => q.GenreId == genreProportionId);
        commonProperties.Genres.Remove(genreProportion);
    }
    #endregion

    internal static void SetAnnouncementDate(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, DateTimeOffset value)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        if (value == default) throw new ArgumentNullException(nameof(value));
        commonProperties.AnnouncementDate = value;
    }

    internal static void SetEstimatedReleaseDate(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, DateTimeOffset value)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        if (value == default) throw new ArgumentNullException(nameof(value));
        if (commonProperties.AnnouncementDate.HasValue && value <= commonProperties.AnnouncementDate.Value)
            throw new Exception("Estimated release date can not be less or equal to announcement date");
        commonProperties.EstimatedReleaseDate = value;
    }

    internal static void SetReleaseDate(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId, DateTimeOffset value)
    {
        var commonProperties = GetCommonProperties(title, animeSeasonId, animeEpisodeId);
        if (value == default) throw new ArgumentNullException(nameof(value));
        if (commonProperties.AnnouncementDate.HasValue && value <= commonProperties.AnnouncementDate.Value)
            throw new Exception("Release date can not be less or equal to announcement date");
        commonProperties.ReleaseDate = value;
    }

    private static CommonProperties GetCommonProperties(AnimeTitle title, Guid? animeSeasonId, Guid? animeEpisodeId)
    {
        if (!animeSeasonId.HasValue && !animeEpisodeId.HasValue) return title.CommonProperties;
        else if (animeSeasonId.HasValue && !animeEpisodeId.HasValue)
        {
            var season = title.Items.OfType<AnimeSeason>().First(q => q.Id == animeSeasonId);
            return season.CommonProperties;
        }
        else if (!animeSeasonId.HasValue && animeEpisodeId.HasValue)
        {
            //set to unseason episode
            var episode = title.Items.OfType<AnimeEpisode>().First(q => q.Id == animeEpisodeId);
            return episode.CommonProperties;
        }
        else
        {
            var season = title.Items.OfType<AnimeSeason>().First(q => q.Id == animeSeasonId);
            var episode = season.Episodes.First(q => q.Id == animeEpisodeId);
            return episode.CommonProperties;
        }
    }
}