// /**
//  * File: DvDt.cs
//  * Author: haraldwolff
//  *
//  * This file and it's content is copyrighted by the Author and / or copyright holder.
//  * Any use wihtout proper permission is illegal and may lead to legal actions.
//  *
//  *
//  **/
using System;
namespace ln.type
{
    public class dVdT
    {
        public double Current { get; private set; }
        public double LastValue => lastValue;
        public DateTime LastTimeStamp => lastTimestamp;

        DateTime lastTimestamp;
        double lastValue;

        public dVdT()
        {
            lastTimestamp = DateTime.MinValue;
            lastValue = 0.0;
        }

        public void Update(double value)
        {
            DateTime now = DateTime.Now;
            double interval = (now - lastTimestamp).TotalSeconds;
            if (Math.Abs(interval) > double.Epsilon)
            {
                double dV = value - lastValue;
                Current = dV / interval;
                lastTimestamp = now;
                lastValue = value;
            }
        }
    }
}