public NsDateTime(int year, int month, int day, int hour, int minute, int second, double millisecond)
{
if (year < 1 || year > 9999)
{
throw new ArgumentOutOfRangeException(nameof(year), year,
"Enter a year between (1-9999).");
}
var daysOfMonth = NanakshahiDateTime.DaysInMonth(year, month);
var nanakshahiMonth = NsHelper.MonthToNsMonth(month - 1);
if (day < 1 || day > daysOfMonth)
{
throw new ArgumentOutOfRangeException(nameof(day), day,
$"Enter a valid day. The month {nanakshahiMonth.TransliterationName} in year {year} has (1-{daysOfMonth}) days.");
}
if (hour < 0 || hour > 23)
{
throw new ArgumentOutOfRangeException(nameof(hour), hour,
"Enter an hour between (0-23).");
}
if (minute < 0 || minute > 59)
{
throw new ArgumentOutOfRangeException(nameof(minute), minute,
"Enter a minute between (0-59).");
}
if (second < 0 || second > 59)
{
throw new ArgumentOutOfRangeException(nameof(second), second,
"Enter a second between (0-59).");
}
if (millisecond < 0 || millisecond > 999)
{
throw new ArgumentOutOfRangeException(nameof(millisecond), millisecond,
"Enter a second between (0-999).");
}
Year = year;
Month = month;
Day = day;
Hour = hour;
Minute = minute;
Second = second;
Millisecond = millisecond;
}
public static NanakshahiDateTime ToNanakshahiDateTime(this DateTime gregorianDate)
{
if (gregorianDate.Year < 1469 && gregorianDate.Month < 3 && gregorianDate.Day < 14)
{
throw new ArgumentOutOfRangeException(nameof(gregorianDate), gregorianDate,
"Enter a date of 1469/3/14 or larger.");
}
var holaMohalla = new DateTime(gregorianDate.Year, 3, 14);
var nsYear = gregorianDate >= holaMohalla
? gregorianDate.Year - 1468
: gregorianDate.Year - 1469;
var nsMonth = NsHelper.MonthToNsMonth((gregorianDate.Month + 8) % 12);
var nsNextMonth = NsHelper.MonthToNsMonth(nsMonth.MonthNumber % 12);
int nsDay;
if (gregorianDate.Day >= nsNextMonth.Offset)
{
nsMonth = nsNextMonth;
nsDay = gregorianDate.Day - nsNextMonth.Offset + 1;
}
else
{
var firstOfNsMonth = new DateTime(
gregorianDate.Year,
gregorianDate.Month - 1,
nsMonth.Offset
);
nsDay = (int)(gregorianDate.ToUniversalTime() - firstOfNsMonth.ToUniversalTime()).TotalDays + 1;
}
return(new NanakshahiDateTime(nsYear, nsMonth.MonthNumber, nsDay, gregorianDate.Hour, gregorianDate.Minute,
gregorianDate.Second, gregorianDate.Millisecond));
}
