public SpanOfYears YearsIntervalForPeriod(MonthPeriod period)
{
SpanOfYears[] validSpan = Milestones.Where((x) => SeqOfYears.SelectForPeriod(x, period)).ToArray();
SpanOfYears firstSpan = validSpan.FirstOrDefault();
return(firstSpan == null?SpanOfYears.Empty() : firstSpan);
}
private static SpanOfYears TransformYearsToSpans(UInt16 yearFrom, UInt16 yearUpto)
{
UInt16 tranUpto = SeqOfYears.TransformZeroToUpto(yearUpto);
UInt16 spanUpto = (tranUpto == yearFrom ? tranUpto : (UInt16)(tranUpto - 1u));
return(new SpanOfYears(yearFrom, spanUpto));
}
public SeqOfYears(UInt16[] years)
{
UInt16[] sortedYears = years.OrderBy((x) => SeqOfYears.TransformZeroToUpto(x)).ToArray();
int beginsCount = sortedYears.Length - 1;
UInt16[] beginsYears = sortedYears.Take(beginsCount).ToArray();
UInt16[] finishYears = sortedYears.Skip(1).ToArray();
UInt16[][] sortedZiped = beginsYears.Zip(finishYears, (x, y) => new UInt16[] { x, y }).ToArray();
this.Milestones = sortedZiped.Select((x) => SeqOfYears.TransformYearsToSpans(x.First(), x.Last())).ToArray();
}
