/// <summary>
/// מחשב האם התאריך בטווח התאריכים בהתחשב בנתוני לוח עברי : שנה מעוברת ,שנים מלאות ,חסרות וכסדרן
/// </summary>
/// <param name="value">date to check(today)</param>
/// <param name="date">date of event</param>
/// <param name="length">how meny days is event</param>
/// <returns></returns>
public static bool IsInRange(this DateTime value, DateTime date, int length)
{
length--;
HebrewCalendar hd = new HebrewCalendar();
//case 1: The same type of year
if (hd.GetDaysInYear(hd.GetYear(value)) == hd.GetDaysInYear(hd.GetYear(date)))
{
//לא נכון למקרה הזה יכול להיות שימושי במקרים אחרים
//if (hd.GetDayOfYear(date) + length > hd.GetDaysInYear(hd.GetYear(date)))
// length += hd.GetDaysInYear(hd.GetYear(date));
if (hd.GetDayOfYear(value) >= hd.GetDayOfYear(date) && (hd.GetDayOfYear(value) <= (hd.GetDayOfYear(date) + length)))
{
return(true);
}
return(false);
}
int month = hd.GetMonth(value);
// all false options: different months(not Adar in leep year) or an erlier day in the month - same length of month
if (month < hd.GetMonth(date) && hd.IsLeapYear(hd.GetYear(date)) == false)
{
return(false);
}
//both are ether leap or not, The differencse is by the months
if (Math.Abs(hd.GetDaysInYear(hd.GetYear(value)) - hd.GetDaysInYear(hd.GetYear(date))) <= 2)
{
return(CheckRange(hd.GetYear(date), month, hd.GetDayOfMonth(value), value, date, length));
}
else if (hd.IsLeapYear(hd.GetYear(value)) == true)
{
if (month > 6)
{
month -= 1;
}
if (hd.GetMonth(value) != 6)
{
return(CheckRange(hd.GetYear(date), month, hd.GetDayOfMonth(value), value, date, length));
}
else
{
return(false);
}
}
//date is a leap year
else
{
if (month >= 6)
{
month += 1;
}
if (hd.GetMonth(date) == 6 || (hd.GetMonth(date) < 6 && (hd.GetMonth(hd.AddDays(date, length)) >= 6)))
{
return(false);
}
return(CheckRange(hd.GetYear(date), month, hd.GetDayOfMonth(value), value, date, length));
}
}
/// <summary>
/// חלק מחישוב האם התאריך ברצף תאריכים
/// </summary>
/// <param name="year"></param>
/// <param name="month"></param>
/// <param name="day"></param>
/// <param name="value"></param>
/// <param name="date"></param>
/// <param name="length"></param>
/// <returns></returns>
public static bool CheckRange(int year, int month, int day, DateTime value, DateTime date, int length)
{
HebrewCalendar hd = new HebrewCalendar();
try
{
DateTime tempDate = hd.ToDateTime(year, month, day, 0, 0, 0, 0);
if (hd.GetDayOfYear(value) >= hd.GetDayOfYear(date) && (hd.GetDayOfYear(value) <= (hd.GetDayOfYear(date) + length)))
{
return(true);
}
return(false);
}
catch (ArgumentOutOfRangeException)
{
return(false);
}
}
/// <summary>
/// Sets the date according to the Gregorian Calendar
/// </summary>
/// <param name="date">The Gregorian date</param>
public JewishDate(DateTime date)
{
GregDate = date;
HebrewCalendar hebCal = new HebrewCalendar();
Year = hebCal.GetYear(date);
Month = hebCal.GetMonth(date);
Day = hebCal.GetDayOfMonth(date);
DayOfWeek = hebCal.GetDayOfWeek(GregDate);
DayOfYear = hebCal.GetDayOfYear(GregDate);
}
/// <summary>
/// Sets the date according to the Hebrew Calendar
/// </summary>
/// <param name="year">Number of years since Creation</param>
/// <param name="month">Month of the year</param>
/// <param name="day">Day of the month</param>
public JewishDate(int year, int month, int day)
{
HebrewCalendar hebCal = new HebrewCalendar();
GregDate = hebCal.ToDateTime(year, month, day, 0, 0, 0, 0);
Year = year;
Month = month;
Day = day;
DayOfWeek = hebCal.GetDayOfWeek(GregDate);
DayOfYear = hebCal.GetDayOfYear(GregDate);
}