public static List <DateTime> Dates(this Repeats repeats, DateTime startDate, bool skipFirst = false)
{
List <DateTime> dates = new List <DateTime>();
switch (repeats)
{
case Repeats.Monthly:
dates.Add(skipFirst ? startDate.AddMonths(1) : startDate);
return(dates);
case Repeats.Weekly:
dates.Add(skipFirst ? startDate.AddDays(_daysInWeek) : startDate);
return(dates);
case Repeats.Daily:
dates.Add(skipFirst ? startDate.AddDays(1) : startDate);
return(dates);
case Repeats.None:
if (!skipFirst)
{
dates.Add(startDate);
}
return(dates);
default /* DaysOfWeek */:
List <DayOfWeek> list = repeats.DaysOfWeek();
for (int i = 0; i < _daysInWeek; i++)
{
DateTime date = startDate.AddDays(i);
if (list.Contains(date.DayOfWeek))
{
dates.Add(date);
}
}
if (skipFirst && dates.Count > 0)
{
dates[0] = dates[0].AddDays(_daysInWeek);
}
return(dates);
}
}
public static DateTime ActualDate(this Repeats repeats, DateTime startDate)
{
switch (repeats)
{
case Repeats.Monthly:
while (startDate.Date < DateTime.Today)
{
startDate = startDate.AddMonths(1);
}
return(startDate);
case Repeats.Weekly:
while (startDate.Date < DateTime.Today)
{
startDate = startDate.AddDays(_daysInWeek);
}
return(startDate);
case Repeats.Daily:
return(DateTime.Today.SetTime(startDate));
case Repeats.None:
return(startDate);
default /* DaysOfWeek */:
if (startDate.Date < DateTime.Today)
{
startDate = DateTime.Today.SetTime(startDate);
}
List <DayOfWeek> list = repeats.DaysOfWeek();
for (int i = 0; i < _daysInWeek; i++)
{
DateTime date = startDate.AddDays(i);
if (list.Contains(date.DayOfWeek))
{
return(date);
}
}
return(startDate);
}
}