internal static DateTime?GetNextOccurrence(this DateTime dateTime, WeeklyPatternModel weeklyPattern)
{
DateTime currentDate = dateTime.AddDays(1);
while (currentDate <= weeklyPattern.EndDate)
{
if (weeklyPattern.Days.Contains(currentDate.DayOfWeek))
{
return(currentDate);
}
currentDate = currentDate.AddDays(1);
}
return(null);
}
public IEnumerable <DiaryEventModel> CreateSeries(WeeklyPatternModel weeklyPattern, DateTime endDate)
{
var series = new List <DiaryEventModel>();
series.Add(this);
DateTime?nextStartTime = StartTime.GetNextOccurrence(weeklyPattern);
TimeSpan duration = EndTime - StartTime;
while (nextStartTime.HasValue && nextStartTime <= endDate)
{
var newEvent = (DiaryEventModel)Clone();
newEvent.StartTime = nextStartTime.Value;
newEvent.EndTime = nextStartTime.Value.Add(duration);
series.Add(newEvent);
nextStartTime = nextStartTime.Value.GetNextOccurrence(weeklyPattern);
}
return(series);
}
