/// <summary>
/// terator for the month dates.
/// </summary>
/// <returns>an iterator for date objects starting from the start of the
/// month to the end</returns>
/// <param name="month">Month.</param>
/// <param name="year">Year.</param>
public IEnumerable <Date> IterMonthDates(int month, int year)
{
int dayIncrement = 1;
while (EtDateValidator.IsValid(dayIncrement, month, year))
{
Date date = new Date(dayIncrement, month, year);
yield return(date);
dayIncrement++;
}
}
/// <summary>
/// Convert Ethiopian Date into JDN(Julian Date Number).
/// </summary>
/// <returns>JDN number integer value.</returns>
/// <param name="day">Day.</param>
/// <param name="month">Month.</param>
/// <param name="year">Year.</param>
/// <param name="era">Era. Defines if it is `Amete miheret` or `Amete alem`,
/// the Ethiopian equivalents to A.D and B.C respectively.
/// Possible values are JDN_EPOCH_OFFSET.AMETE_MIHRET or JDN_EPOCH_OFFSET.AMETE_ALEM </param>
public static int EthiopianToJDN(int day, int month, int year, int era = (int)JDN_EPOCH_OFFSET.AMETE_MIHRET)
{
if (!EtDateValidator.IsValidDayRange(day))
{
throw new InvalidDayException();
}
if (!EtDateValidator.IsValidMonthRange(month))
{
throw new InvalidMonthException();
}
if (!EtDateValidator.IsValidPagumeDayRange(day, month))
{
throw new InvalidPagumeDayException();
}
if (EtDateValidator.IsValid(day, month, year))
{
return((int)(era + (int)JDN_CONST._365 + (int)JDN_CONST._365 *
(year - (int)JDN_CONST._1) + Math.Floor((double)year /
(int)JDN_CONST._4) + (int)JDN_CONST._30 * month + day - (int)JDN_CONST._31));
}
//TODO fix this return
return(0);
}
/// <summary>
/// Initializes a new instance of the <see cref="T:EthiopianCalendar.Date"/> class.
/// </summary>
/// <param name="day">Day.</param>
/// <param name="month">Month.</param>
/// <param name="year">Year.</param>
public Date(int day, int month, int year)
{
if (EtDateValidator.IsValid(day, month, year))
{
Day = day;
Month = month;
Year = year;
WeekDayNumber = Converter.EthiopianWeekDayNumber(day, month, year);
Special = Holiday.IsHoliday(this) ? Holiday.HolidayName(this) : null;
}
if (!EtDateValidator.IsValidDayRange(day))
{
throw new InvalidDayException();
}
if (!EtDateValidator.IsValidMonthRange(month))
{
throw new InvalidMonthException();
}
if (!EtDateValidator.IsValidPagumeDayRange(day, month))
{
throw new InvalidPagumeDayException();
}
}