public class DynamicLang : MarkupExtension
{
    private CompiledBindingExtension CompiledBindingExtension { get; }
    public LanguageManager LangMgr { get; set; }

    public List<object> Args { get; set; } = new List<object>(0);

    public string FixedCulture { get; set; }

    public string DefaultValue { get; set; }

    public bool NoUpdate { get; set; }



    public DynamicLang(CompiledBindingExtension compiledBindingExtension)
    {
        CompiledBindingExtension = compiledBindingExtension;
    }

    public string Key { get; set; }

    private static AoLangConverter _aoLangConverter = new AoLangConverter();
    public override object ProvideValue(IServiceProvider serviceProvider)
    {
         var source = new ObservableSource();
         
        (this.LangMgr ?? LanguageManager.Instance).CultureInfoChanged += (cultureInfo) =>
        {
            source.RaisePropertyChanged();
        };
        var binding = new MultiBinding()
        {
            Bindings = [
                new Binding()
                {
                    Path = CompiledBindingExtension.Path.ToString(),
                    Mode = BindingMode.OneWay,
                },
                new Binding()
                {
                    Path = nameof(ObservableSource.Value),
                    Source = source,
                    Mode = BindingMode.OneWay
                }
            ],
            Converter =_aoLangConverter
        };
        return binding;
    }
}
public class ObservableSource : INotifyPropertyChanged
{
    private bool _value;
    public bool Value
    {
        get => _value;
        set
        {
            _value = value;
            OnPropertyChanged();
        }
    }

    public void RaisePropertyChanged()
    {
        Value = !Value;
    }

    public event PropertyChangedEventHandler? PropertyChanged;

    protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
}

public class AoLangConverter : IMultiValueConverter
{
    public object? Convert(IList<object?> values, Type targetType, object? parameter, CultureInfo culture)
    {

        ILangStrBox langBox = LanguageManager.Instance.CreateLangBox(values[0]!.ToString(), (IList?)(parameter as string)?.Split(','), noUpdate: true);
        return langBox.Value; 
    }
}