/// <summary>
/// Determine the next time (in milliseconds) that is 'included' by the
/// Calendar after the given time. Return the original value if timeStamp is
/// included. Return 0 if all days are excluded.
/// </summary>
/// <param name="timeUtc"></param>
/// <returns></returns>
/// <seealso cref="ICalendar.GetNextIncludedTimeUtc"/>
public override DateTimeOffset GetNextIncludedTimeUtc(DateTimeOffset timeUtc)
{
DateTimeOffset nextIncludedTime = timeUtc.AddMilliseconds(OneMillis);
while (!IsTimeIncluded(nextIncludedTime))
{
if (!InvertTimeRange)
{
//If the time is in a range excluded by this calendar, we can
// move to the end of the excluded time range and continue
// testing from there. Otherwise, if nextIncludedTime is
// excluded by the baseCalendar, ask it the next time it
// includes and begin testing from there. Failing this, add one
// millisecond and continue testing.
if (nextIncludedTime >=
GetTimeRangeStartingTimeUtc(nextIncludedTime) &&
nextIncludedTime <=
GetTimeRangeEndingTimeUtc(nextIncludedTime))
{
nextIncludedTime =
GetTimeRangeEndingTimeUtc(nextIncludedTime).AddMilliseconds(OneMillis);
}
else if (CalendarBase != null &&
!CalendarBase.IsTimeIncluded(nextIncludedTime))
{
nextIncludedTime =
CalendarBase.GetNextIncludedTimeUtc(nextIncludedTime);
}
else
{
nextIncludedTime = nextIncludedTime.AddMilliseconds(1);
}
}
else
{
//If the time is in a range excluded by this calendar, we can
// move to the end of the excluded time range and continue
// testing from there. Otherwise, if nextIncludedTime is
// excluded by the baseCalendar, ask it the next time it
// includes and begin testing from there. Failing this, add one
// millisecond and continue testing.
if (nextIncludedTime <
GetTimeRangeStartingTimeUtc(nextIncludedTime))
{
nextIncludedTime =
GetTimeRangeStartingTimeUtc(nextIncludedTime);
}
else if (nextIncludedTime >
GetTimeRangeEndingTimeUtc(nextIncludedTime))
{
//(move to start of next day)
nextIncludedTime = GetEndOfDay(nextIncludedTime);
nextIncludedTime = nextIncludedTime.AddMilliseconds(1);
}
else if (CalendarBase != null &&
!CalendarBase.IsTimeIncluded(nextIncludedTime))
{
nextIncludedTime =
CalendarBase.GetNextIncludedTimeUtc(nextIncludedTime);
}
else
{
nextIncludedTime = nextIncludedTime.AddMilliseconds(1);
}
}
}
return(nextIncludedTime);
}
