/// <summary>
/// Gets actualized days.
/// </summary>
/// <param name="calendar">The calendar.</param>
/// <param name="countTerm">The count term.</param>
/// <param name="dateTime">The date time.</param>
/// <param name="value">The value.</param>
/// <returns>Actualized calendar days collection.</returns>
public static IEnumerable <ICalendarDay> GetDays(this ICalendar <ICalendarDay> calendar, BaseCountTerm countTerm,
DateTime dateTime, int value)
{
countTerm.RegistrationDate = dateTime;
int weeksCount = countTerm.GetWeeksCount(calendar.WeekTemplate, value + 1);
IEnumerable <ICalendarDay> days = calendar.GenerateWeeks(dateTime, weeksCount);
countTerm.ActualizeDays(ref days, dateTime);
return(days);
}