using Modules.Library.Domain.EntitiesV0.MediaContent.CommonProperties.ShadowEntities;

namespace Modules.Library.Domain.EntitiesV0.MediaContent.CommonProperties;

public class CommonProperties : Entity
{
    private readonly CommonPropertiesShadow _shadow;
    public IReadOnlyCollection<NameItem> Names => _shadow.names.AsReadOnly();
    public MediaInfo? Preview => _shadow.preview;

    public IReadOnlyCollection<DescriptionItem> Descriptions => _shadow.descriptions.AsReadOnly();
    public IReadOnlyCollection<GenreProportionItem> Genres => _shadow.genres.AsReadOnly();
    public IReadOnlyCollection<MediaInfo> RelatedContent => _shadow.relatedContent.AsReadOnly();

    public DateTimeOffset? AnnouncementDate => _shadow.announcementDate;
    internal Action? AfterAnnouncementDateSet;
    public DateTimeOffset? EstimatedReleaseDate => _shadow.estimatedReleaseDate;
    internal Action? AfterEstimatedReleaseDateSet;
    public DateTimeOffset? ReleaseDate => _shadow.releaseDate;
    internal Action? AfterReleaseDateSet;

    public override bool Deleted => false;

    internal CommonProperties(CommonPropertiesShadow shadow, Action? afterAnnouncementDateSet, Action? afterEstimatedReleaseDateSet, Action? afterReleaseDateSet)
    {
        _shadow = shadow;
        AfterAnnouncementDateSet = afterAnnouncementDateSet;
        AfterEstimatedReleaseDateSet = afterEstimatedReleaseDateSet;
        AfterReleaseDateSet = afterReleaseDateSet;
    }


    #region Name
    internal void AddNameOriginal(string languageId, string value)
    {
        if (_shadow.names.Any(q => q.Type == NameType.Original)) throw new Exception("Original name is already exist.");
        var name = new NameItem(languageId, NameType.Original, value);
        AddName(name, value);
    }

    internal void AddNameOriginalInAnotherLanguage(string languageId, string value)
    {
        if (languageId == _shadow.names.Single(q => q.Type == NameType.Original).LanguageId)
            throw new Exception("Language must not match original name language");

        if (_shadow.names.Any(q => q.Type == NameType.OriginalInAnotherLanguage && q.LanguageId == languageId))
            throw new Exception("Name in following language is already exist.");

        var name = new NameItem(languageId, NameType.OriginalInAnotherLanguage);
        AddName(name, value);
    }
    internal void AddNameTranslation(string languageId, string value)
    {
        var name = new NameItem(languageId, NameType.Translation);
        AddName(name, value);
    }
    internal void AddNameAbbreviation(string languageId, string value)
    {
        var name = new NameItem(languageId, NameType.Abbreviation);
        AddName(name, value);
    }

    private void AddName(NameItem nameItem, string value)
    {
        _shadow.names.Add(nameItem);
        SetNameValue(nameItem, value);
    }

    internal void RemoveName(string nameId)
    {
        var name = GetName(nameId);
        if (name.Type == NameType.Original) throw new Exception($"Unable to remove original name");
        name.SetDeleted();
        //_names.Remove(name);
    }

    internal void SetNameValue(string nameId, string value) => SetNameValue(GetName(nameId), value);

    private void SetNameValue(NameItem nameItem, string value)
    {
        if (string.IsNullOrWhiteSpace(value)) throw new ArgumentNullException(nameof(value));
        if (nameItem.Type != NameType.Original && _shadow.names.Any(q => q.LanguageId == nameItem.LanguageId && q.Value == value))
            throw new Exception("Name item with in same language with same value is already exists");
        nameItem.SetValue(value);
    }

    private NameItem GetName(string nameId) => _shadow.names.FirstOrDefault(q => q.Id == nameId) ??
        throw new Exception($"Name with id [{nameId}] is not found");
    #endregion

    internal void SetPreview(string url, MediaInfoType type)
    {
        if (string.IsNullOrWhiteSpace(url)) throw new ArgumentNullException(nameof(url));
        _shadow.preview ??= new MediaInfo(url, type);
        _shadow.preview.SetUrl(url);
    }
    internal void DeletePreview()
    {
        _shadow.preview = null;
    }

    #region Description
    internal void AddOriginalDescription(string languageId, string value)
    {
        if (_shadow.descriptions.Any(q => q.IsOriginal)) throw new Exception("Original description is already exist.");
        var description = new DescriptionItem(languageId, true);
        _shadow.descriptions.Add(description);
        SetDescriptionValue(description, value);
    }

    internal void AddNotOriginalDescription(string languageId, string value)
    {
        var description = new DescriptionItem(languageId, false);
        _shadow.descriptions.Add(description);
        SetDescriptionValue(description, value);
    }

    internal void RemoveDescription(string descriptionId)
    {
        var description = GetDescription(descriptionId);
        if (description.IsOriginal) throw new Exception($"Unable to remove original description");
        //_descriptions.Remove(name);
        description.SetDeleted();
    }

    internal void SetDescriptionValue(string descriptionId, string value)
    {
        var name = GetDescription(descriptionId);
        SetDescriptionValue(name, value);
    }

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

    private DescriptionItem GetDescription(string descriptionId)
    {
        return _shadow.descriptions.FirstOrDefault(q => q.Id == descriptionId) ??
            throw new Exception($"Description with id [{descriptionId}] is not found");
    }
    #endregion

    #region Genre
    internal void AddGenre(string genreId, decimal? proportion = null)
    {
        if (_shadow.genres.Any(q => q.GenreId == genreId)) throw new Exception("Genre is already in the list");
        var genreProportionItem = new GenreProportionItem(genreId);
        _shadow.genres.Add(genreProportionItem);
        if (proportion.HasValue) genreProportionItem.SetProportion(proportion);
    }

    internal void SetGenreProportion(string genreProportionItemId, decimal? value = null)
    {
        var genreProportionItem = GetGenreProportionItem(genreProportionItemId);
        genreProportionItem.SetProportion(value);
    }

    internal void RemoveGenre(string genreProportionItemId)
    {
        var genreProportionItem = GetGenreProportionItem(genreProportionItemId);
        //_genres.Remove(genreProportionItem);
        genreProportionItem.SetDeleted();
    }

    private GenreProportionItem GetGenreProportionItem(string genreProportionItemId)
    {
        return _shadow.genres.FirstOrDefault(q => q.Id == genreProportionItemId) ??
            throw new Exception($"Genre proportion item with id [{genreProportionItemId}] is not found");
    }
#endregion

    #region RelatedContent

    internal void AddRelatedContent(string url, MediaInfoType type)
    {
        if (string.IsNullOrWhiteSpace(url)) throw new ArgumentNullException(nameof(url));
        CheckIfCanAddOrEdit(url, type);
        _shadow.relatedContent.Add(new MediaInfo(url, type));
    }

    internal void EditRelatedContent(string relatedContentId, string url, MediaInfoType type)
    {
        var relatedContent = GetRelatedContent(relatedContentId);
        CheckIfCanAddOrEdit(url, type);
        relatedContent.SetUrl(url);
        relatedContent.SetType(type);
    }

    internal void RemoveRelatedContent(string relatedContentId)
    {
        var relatedContent = GetRelatedContent(relatedContentId);
        //_relatedContent.Remove(relatedContent);
        relatedContent.SetDeleted();
    }

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


    private MediaInfo GetRelatedContent(string relatedContentId)
    {
        return _shadow.relatedContent.FirstOrDefault(q => q.Id == relatedContentId) ??
            throw new Exception($"Related content with id [{relatedContentId}] is not found");
    }
    #endregion


    internal void SetAnnouncementDate(DateTimeOffset value)
    {
        if (value == default) throw new ArgumentNullException(nameof(value));
        _shadow.announcementDate = value;
        AfterAnnouncementDateSet?.Invoke();
    }

    internal void SetEstimatedReleaseDate(DateTimeOffset value)
    {
        if (value == default) throw new ArgumentNullException(nameof(value));
        if (_shadow.announcementDate.HasValue && value <= _shadow.announcementDate.Value)
            throw new Exception("Estimated release date can not be less or equal to announcement date");
        _shadow.estimatedReleaseDate = value;
        AfterEstimatedReleaseDateSet?.Invoke();
    }
    internal void SetReleaseDate(DateTimeOffset value)
    {
        if (value == default) throw new ArgumentNullException(nameof(value));
        if (_shadow.announcementDate.HasValue && value <= _shadow.announcementDate.Value)
            throw new Exception("Release date can not be less or equal to announcement date");
        _shadow.releaseDate = value;
        AfterReleaseDateSet?.Invoke();
    }

    internal override void SetDeleted() { }
}