using System.Linq;
using SixLabors.ImageSharp;
using SixLabors.ImageSharp.PixelFormats;

namespace Mosaic.Colors;

public static class ColorAnalyzer
{
    extension(Image<Rgba32> image)
    {
        public (Rgba32 color, float proportion)[] GetPalette()
        {
            var quantized = image.Quantize(6);
            var total = quantized.Values.Aggregate(0.0f, (t, v) => t + v);
            return [.. quantized.Select(kvp => (kvp.Key, kvp.Value / total)).OrderByDescending(p => p.Item2)];
        }
    }
}