public double?GetKml()
{
if (FillUps.Count <= 1)
{
return(null);
}
var kml = FillUps.Where(it => it.Next != null).Sum(it => it.Kml);
//Console.WriteLine(kml);
return(60);
}
public FillUp AddFillUp(int odoMeter, double liters)
{
FillUp f = new FillUp(odoMeter, liters);
//var prevFillUp = FillUps.LastOrDefault();
var prevFillUp = FillUps.Where(x => x.NextFillUp == null).FirstOrDefault();
if (prevFillUp != null)
{
prevFillUp.NextFillUp = f;
}
FillUps.Add(f);
return(f);
}