using System.Windows.Media;

namespace PamhagenSysCtrl.Helpers {
    public class PamhagenBrushes {

        public const double TRANSITION = 1.0 / 4096;

        public static readonly SolidColorBrush Green = new SolidColorBrush(Color.FromRgb(0x20, 0xE0, 0x20));
        public static readonly SolidColorBrush DimOrange = new SolidColorBrush(Color.FromRgb(0xFF, 0xC0, 0x80));
        public static readonly SolidColorBrush Yellow = new SolidColorBrush(Color.FromRgb(0xFF, 0xE0, 0x10));
        public static readonly SolidColorBrush Red = new SolidColorBrush(Color.FromRgb(0xFF, 0x20, 0x20));

        public static Brush ForFillState(FillState state, Color background) {
            return state switch {
                FillState.Empty => GetEmpty(background),
                FillState.Filled => GetFilled(background),
                FillState.Half => GetHalf(background),
                FillState.Full => GetFull(background),
                _ => GetEmpty(background),
            };
        }

        public static Brush ForFillState(FillState state, SolidColorBrush background) {
            return ForFillState(state, background.Color);
        }

        public static Brush GetEmpty(Color background) {
            return new SolidColorBrush(background);
        }

        public static Brush GetFilled(Color background) {
            return new LinearGradientBrush(background, Green.Color, new(0.5, 0.875 - TRANSITION), new(0.5, 0.875 + TRANSITION));
        }

        public static Brush GetHalf(Color background) {
            return new LinearGradientBrush(background, Green.Color, new(0.5, 0.5 - TRANSITION), new(0.5, 0.5 + TRANSITION));
        }

        public static Brush GetFull(Color background) {
            return new LinearGradientBrush(background, Red.Color, new(0.5, 0.0625 - TRANSITION), new(0.5, 0.0625 + TRANSITION));
        }
    }
}