namespace PicView.Avalonia.AnimatedImage.Decoding
{
    public readonly struct GifRect(int x, int y, int width, int height)
    {
        public int X { get; } = x;
        public int Y { get; } = y;
        public int Width { get; } = width;
        public int Height { get; } = height;
        public int TotalPixels { get; } = width * height;

        public static bool operator ==(GifRect a, GifRect b)
        {
            return a.X == b.X && a.Y == b.Y && a.Width == b.Width && a.Height == b.Height;
        }

        public static bool operator !=(GifRect a, GifRect b)
        {
            return !(a == b);
        }

        public override bool Equals(object? obj)
        {
            if (obj == null || GetType() != obj.GetType())
                return false;

            return this == (GifRect)obj;
        }

        public override int GetHashCode()
        {
            return X.GetHashCode() ^ Y.GetHashCode() | Width.GetHashCode() ^ Height.GetHashCode();
        }
    }
}