using Penumbra.GameData.Structs;

namespace Glamourer.Structs;

public readonly struct Stain
{
    public readonly string Name;
    public readonly uint RgbaColor;

    private readonly uint _seColorId;

    public byte R
        => (byte)(RgbaColor & 0xFF);

    public byte G
        => (byte)(RgbaColor >> 8 & 0xFF);

    public byte B
        => (byte)(RgbaColor >> 16 & 0xFF);

    public byte Intensity
        => (byte)((1 + R + G + B) / 3);

    public uint SeColor
        => _seColorId & 0x00FFFFFF;

    public StainId RowIndex
        => (StainId)(_seColorId >> 24);


    public static uint SeColorToRgba(uint color)
        => (color & 0xFF) << 16 | color >> 16 & 0xFF | color & 0xFF00 | 0xFF000000;

    public Stain(byte index, Lumina.Excel.GeneratedSheets.Stain stain)
    {
        Name = stain.Name.ToString();
        _seColorId = stain.Color | (uint)index << 24;
        RgbaColor = SeColorToRgba(stain.Color);
    }

    public static readonly Stain None = new("None");

    private Stain(string name)
    {
        Name = name;
        _seColorId = 0;
        RgbaColor = 0;
    }
}