using System;

using System.Windows.Data;

using WPFluent.Controls;
using WPFluent.Extensions;

namespace WPFluent.Converters;

/// <summary>
/// Converts HSB color values to SolidColorBrush and vice versa. Supports single and multi-value conversions.
/// </summary>
internal class HsbToColorConverter : IValueConverter, IMultiValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        if (value is Hsb hsb)
            return new SolidColorBrush(hsb.ToColor());
        return Binding.DoNothing;
    }

    public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
    {
        var h = (double)values[0];
        var s = (double)values[1];
        var b = (double)values[2];
        return new SolidColorBrush(new Hsb(h, s, b).ToColor());
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        if (value is SolidColorBrush brush)
            return brush.Color.ToHsb();
        return Binding.DoNothing;
    }

    public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
    { throw new NotImplementedException(); }
}