public virtual DateTime?FindAfter(DateTime dt)
{
if (Months == ScheduleMonths.None || Days == ScheduleDays.None || Times.Count == 0)
{
return(null);
}
TimeSpan ts;
Validate(ref dt, out ts);
try
{
var future = false;
for (var year = dt.Year; year <= dt.Year + 1; year++)
{
for (var month = future ? 1 : dt.Month; month <= 12; month++)
{
if (!HasMonth(Schedules.ConvertMonth(month)))
{
future = true;
continue;
}
var start = new DateTime(year, month, future ? 1 : dt.Day, 0, 0, 0, dt.Kind);
var end = new DateTime(year, month, DateTime.DaysInMonth(year, month), 0, 0, 0, dt.Kind);
for (var date = start; date <= end; date += _OneDay)
{
if (!HasDay(Schedules.ConvertDay(date.DayOfWeek)))
{
future = true;
continue;
}
foreach (var time in Times.Where(t => future || t > ts).OrderBy(t => t.Ticks))
{
return(new DateTime(year, month, date.Day, time.Hours, time.Minutes, 0, dt.Kind));
}
future = true;
}
}
future = true;
}
}
catch (Exception e)
{
VitaNexCore.Catch(e);
}
return(null);
}
public virtual DateTime?FindBefore(DateTime dt)
{
if (Months == ScheduleMonths.None || Days == ScheduleDays.None || Times.Count == 0)
{
return(null);
}
TimeSpan ts;
Validate(ref dt, out ts);
try
{
var past = false;
for (var year = dt.Year; year >= dt.Year - 1; year--)
{
for (var month = past ? 12 : dt.Month; month >= 1; month--)
{
if (!HasMonth(Schedules.ConvertMonth(month)))
{
past = true;
continue;
}
var start = new DateTime(year, month, past ? DateTime.DaysInMonth(year, month) : dt.Day, 0, 0, 0, dt.Kind);
var end = new DateTime(year, month, 1, 0, 0, 0, dt.Kind);
for (var date = start; date >= end; date -= _OneDay)
{
if (!HasDay(Schedules.ConvertDay(date.DayOfWeek)))
{
past = true;
continue;
}
foreach (var time in Times.Where(t => past || t < ts).OrderByDescending(t => t.Ticks))
{
return(new DateTime(year, month, date.Day, time.Hours, time.Minutes, 0, dt.Kind));
}
past = true;
}
}
past = true;
}
}
catch (Exception e)
{
VitaNexCore.Catch(e);
}
return(null);
}