namespace FrostFS.SDK.Client.Models.Netmap.Placement;

internal readonly struct SigmoidNorm : INormalizer
{
    private readonly double _scale;

    internal SigmoidNorm(double scale)
    {
        _scale = scale;
    }

    public readonly double Normalize(double w)
    {
        if (_scale == 0)
        {
            return 0;
        }

        var x = w / _scale;

        return x / (1 + x);
    }
}