using System;
using System.Globalization;
using System.Windows.Data;
using System.Windows.Media;

namespace HC_APTBS.Converters
{
    /// <summary>
    /// Converts a CSS-style hex colour string (e.g. "#26C200") to a
    /// <see cref="SolidColorBrush"/> for use in WPF bindings.
    /// Returns <see cref="Brushes.Transparent"/> for null or invalid input.
    /// </summary>
    [ValueConversion(typeof(string), typeof(SolidColorBrush))]
    public sealed class HexColorToBrushConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is string hex && !string.IsNullOrWhiteSpace(hex))
            {
                try
                {
                    return new SolidColorBrush((Color)ColorConverter.ConvertFromString(hex));
                }
                catch { /* fall through */ }
            }
            return Brushes.Transparent;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
            => throw new NotSupportedException();
    }
}