using NPOI.SS.Formula.Functions;
using System.Diagnostics.Metrics;

namespace HStation.WinFrmUI.PhartRelation
{
    public class ColorHelper
    {
        public static System.Drawing.Color GetRandomColor()
        {
            Random random = new Random();
            int red = random.Next(0, 256);
            int green = random.Next(0, 256);
            int blue = random.Next(0, 256);

            Color randomColor = Color.FromArgb(red, green, blue);


            return randomColor;
        }

        public static System.Drawing.Color GetDarkerColor()
        {
            Random randomNum_1 = new Random(Guid.NewGuid().GetHashCode());
            System.Threading.Thread.Sleep(randomNum_1.Next(1));
            int int_Red = randomNum_1.Next(255);

            Random randomNum_2 = new Random((int)DateTime.Now.Ticks);
            int int_Green = randomNum_2.Next(255);

            Random randomNum_3 = new Random(Guid.NewGuid().GetHashCode());

            int int_Blue = randomNum_3.Next(255);
            int_Blue = (int_Red + int_Green > 380) ? int_Red + int_Green - 380 : int_Blue;
            int_Blue = (int_Blue > 255) ? 255 : int_Blue;


            return GetDarkerColor(System.Drawing.Color.FromArgb(int_Red, int_Green, int_Blue));
        }




        private static List<Color> _color_array = new List<Color>()
        {
            Color.Red, Color.Blue, Color.Green,Color.DodgerBlue,
            Color.Fuchsia, Color.MidnightBlue,  Color.Maroon, Color.Aquamarine,
            Color.Bisque,Color.BurlyWood
        };


        public static System.Drawing.Color GetDarkerColor(int index)
        {
            if (index < _color_array.Count)
            {
                return _color_array[index];
            }  
            return GetDarkerColor();
        }

        //获取加深颜色
        public static Color GetDarkerColor(Color color)
        {
            const int max = 255;
            int increase = new Random(Guid.NewGuid().GetHashCode()).Next(30, 255); //还可以根据需要调整此处的值


            int r = Math.Abs(Math.Min(color.R - increase, max));
            int g = Math.Abs(Math.Min(color.G - increase, max));
            int b = Math.Abs(Math.Min(color.B - increase, max));

            return Color.FromArgb(r, g, b);
        }

   
    

    }
}