internal static CalendarDate ToCalendarDate(OrdinalDate ordinalDate, CalendarDatePrecision precision)
{
if (precision == CalendarDatePrecision.Century)
{
return new CalendarDate(ISO8601Calculator.CenturyOfYear(ordinalDate.Year));
}
if (precision == CalendarDatePrecision.Year)
{
return new CalendarDate(ordinalDate.Year);
}
var days = ISO8601Calculator.IsLeapYear(ordinalDate.Year) ? DaysToMonth366 : DaysToMonth365;
var month = 0;
var day = 0;
for (int i = days.Length - 1; i >= 0; i--)
{
if (ordinalDate.Day > days[i])
{
month = i + 1;
day = ordinalDate.Day - days[i];
break;
}
}
if (precision == CalendarDatePrecision.Month)
{
return new CalendarDate(ordinalDate.Year, month);
}
return new CalendarDate(ordinalDate.Year, month, day);
}
internal static WeekDate ToWeekDate(OrdinalDate ordinalDate, WeekDatePrecision precision)
{
return ordinalDate.ToCalendarDate(CalendarDatePrecision.Day).ToWeekDate(precision);
}
