using System;
using System.Globalization;

namespace Maki
{
    public class DiscordColour
    {
        public int Raw = 0;

        public byte Red
        {
            get => (byte)(Raw >> 16 & 0xFF);
            set
            {
                Raw &= ~0xFF0000;
                Raw |= value << 16;
            }
        }

        public byte Green
        {
            get => (byte)(Raw >> 8 & 0xFF);
            set
            {
                Raw &= ~0xFF00;
                Raw |= value << 8;
            }
        }

        public byte Blue
        {
            get => (byte)(Raw & 0xFF);
            set
            {
                Raw &= ~0xFF;
                Raw |= value;
            }
        }

        public string Hex => $"{Red:X2}{Green:X2}{Blue:X2}";
        public override string ToString() => $"#{Hex}";

        public DiscordColour(int raw)
        {
            Raw = raw;
        }

        public DiscordColour(byte red, byte green, byte blue)
        {
            Raw |= red << 16;
            Raw |= green << 8;
            Raw |= blue;
        }

        public DiscordColour(string hex)
        {
            hex = hex.ToUpper();

            if (hex.Length == 3)
                hex = new string(hex[0], 2) + new string(hex[1], 2) + new string(hex[2], 2);

            if (hex.Length != 6)
                throw new FormatException("Invalid hex colour format!");

            Red = byte.Parse(hex.Substring(0, 2), NumberStyles.HexNumber);
            Green = byte.Parse(hex.Substring(2, 2), NumberStyles.HexNumber);
            Blue = byte.Parse(hex.Substring(4, 2), NumberStyles.HexNumber);
        }
    }
}