private List <TimeInterval> CalculatePeriods(DateTime start, double hours)
{
var end = start;
while (hours > 0)
{
var hoursHolder = hours;
var increHours = Math.Min(hours, 1);
double hoursOffset;
var nextWorkingTime = NextWorkingTime(end, false, out hoursOffset);
if (double.IsNaN(hoursOffset))
{
hours -= increHours;
end = end.AddHours(increHours);
}
else
{
hours += hoursOffset;
var h = end;
end = end.AddHours(-hoursOffset);
if (h > end)
{
throw new Exception("NOt");
}
if (end < start)
{
throw new Exception("NOt");
}
Breaks.Add(new TimeInterval(start, end));
start = nextWorkingTime;
end = nextWorkingTime;
}
if (hours == 0)
{
if (end < start)
{
throw new Exception("NOt");
}
Breaks.Add(new TimeInterval(start, end));
}
}
return(this.Breaks);
}
private DateTime AddDays(DateTime start, double hours, bool isStart)
{
while (hours > 0)
{
if (hours > 1)
{
start = start.AddHours(1);
start = NextWorkingTime(start, false);
hours -= 1.0;
}
else
{
start = start.AddHours(hours);
if (start.TimeOfDay >= TimeSpan.FromHours(isStart ? 17 : 17.01))
{
TimeSpan duration = start.TimeOfDay - TimeSpan.FromHours(17);
start = NextWorkingTime(start, isStart).Add(duration);
}
hours = 0;
}
}
start = NextWorkingTime(start, isStart);
return(start);
}