using System.Drawing;

namespace BlazorLottoPicker.Utilities
{
    public class Utils
    {
        // 노 파 빨 회 초
        public static Color[] Palettes = new Color[]
        {
            Color.FromArgb(245, 233, 77),
            Color.FromArgb(15, 76, 129),
            Color.FromArgb(191, 25, 50),
            Color.FromArgb(147, 149, 151),
            Color.FromArgb(0, 148, 115),
        };

        public static List<string> HexColorPallets = new List<string>()
        {
            HexConverter(Color.FromArgb(245, 233, 77)),
            HexConverter(Color.FromArgb(15, 76, 129)),
            HexConverter(Color.FromArgb(191, 25, 50)),
            HexConverter(Color.FromArgb(147, 149, 151)),
            HexConverter(Color.FromArgb(0, 148, 115)),
        };

        public static List<string> ColorPallets = new List<string>()
        {
            "Yellow",
            "Blue",
            "Red",
            "Gray",
            "Green",
        };

        private static int _callCount = 1;
        // 1-10, 11-20, 21-30, 31-40, 41-45
        public static int GetNumber(int index)
        {
            if (_callCount > int.MaxValue / 2)
                _callCount = 1;

            int min = 1;
            int max = 46;
            switch (index)
            {
                case 0:
                    min = 1;
                    max = 11;
                    break;
                case 1:
                    min = 11;
                    max = 21;
                    break;
                case 2:
                    min = 21;
                    max = 31;
                    break;
                case 3:
                    min = 31;
                    max = 41;
                    break;
                case 4:
                    min = 41;
                    max = 46;
                    break;
                default:
                    break;
            }

            Random rand = new Random(unchecked((int)DateTime.Now.Ticks) + _callCount);
            return rand.Next(min, max);
        }

        public static String HexConverter(Color c)
        {
            return "#" + c.R.ToString("X2") + c.G.ToString("X2") + c.B.ToString("X2");
        }

        public static String RGBConverter(Color c)
        {
            return "RGB(" + c.R.ToString() + "," + c.G.ToString() + "," + c.B.ToString() + ")";
        }
    }
}