public DateTime GetDayOfWeekDateForWeek(int week, DayOfWeek dayOfWeek)
{
Checks.InRange(1, 5, week, $"{week} is out of range in month {_month.GetName()} of Year {_year.GetYear()}");
var daysUtilFirstDayOfThisWeek = 1 + (week - 1) * 7;
var dateTime = new DateTime(_year.GetYear(), _month.GetMonth(), daysUtilFirstDayOfThisWeek);
var firstDayOfThisWeek = dateTime.DayOfWeek;
var intOfDayOfWeek = dayOfWeek.GetInt();
var intOfFirstDayOfThisWeek = firstDayOfThisWeek.GetInt();
var days = intOfDayOfWeek >= intOfFirstDayOfThisWeek
? intOfDayOfWeek - intOfFirstDayOfThisWeek
: intOfDayOfWeek - intOfFirstDayOfThisWeek + 7
;
Checks.LessThanOrEqual <ArgumentOutOfRangeException>(TotalDays, days + 1, $"{dayOfWeek} doesn't exist in {week} week(s) of {_month.GetName()} {_year}");
return(dateTime.AddDays(days));
}
/// <summary>
/// Construct MonthOfYear by specified Month and this Year
/// </summary>
/// <param name="month">Month</param>
/// <returns>MonthOfYear</returns>
public MonthOfYear ForMonth(Month month)
{
return(MonthOfYear.Of(Month.Of(month.GetMonth()), Of(_year)));
}
public static DateTime Of(int year, Month month, int day, DateTimeKind kind)
{
return(DateTime.SpecifyKind(new DateTime(Year.CheckRange(year), month.GetMonth(), month.CheckRange(day, year)), kind));
}
public static DayOfMonth Of(int day, Month month)
{
return(new DayOfMonth(day, month.GetMonth(), 0));
}
