public BadiDate GetBadiDate(DateTime gSourceDate, RelationToSunset relationToSunset)
{
// strip off time
gSourceDate = gSourceDate.Date;
var bDayRelationToMidnight = relationToSunset == RelationToSunset.gAfterSunset
? RelationToMidnight.bEvePrior_AfterSunset_Frag1
: RelationToMidnight.bDay_BeforeSunset_Frag2;
if (relationToSunset == RelationToSunset.gAfterSunset)
{
gSourceDate = gSourceDate.AddDays(1);
}
var gYear = gSourceDate.Year;
var gDayOfNawRuz = GetNawRuz(gYear, true);
var gDayLoftiness1 = gDayOfNawRuz.AddDays(-19);
var bYear = gYear - (gSourceDate >= gDayOfNawRuz ? 1843 : 1844);
int bMonth;
int bDay;
var isBeforeLoftiness = gSourceDate < gDayLoftiness1;
if (isBeforeLoftiness)
{
// back: Jan --> end of AyyamiHa
var gDayLoftiness1LastYear = GetNawRuz(gYear - 1, true).AddDays(-19);
var daysAfterLoftiness1LastYear = (int)Math.Round((gSourceDate - gDayLoftiness1LastYear).TotalDays);
var numMonthsFromLoftinessLastYear = (int)Math.Floor(daysAfterLoftiness1LastYear / 19D);
bDay = 1 + daysAfterLoftiness1LastYear - numMonthsFromLoftinessLastYear * 19;
bMonth = numMonthsFromLoftinessLastYear;
if (bMonth == 19)
{
bMonth = 0;
}
}
else
{
// forward: Loftiness --> Dec
var bDaysAfterLoftiness1 = (int)Math.Round((gSourceDate - gDayLoftiness1).TotalDays);
var bNumMonthsFromLoftiness = (int)Math.Floor(bDaysAfterLoftiness1 / 19D);
bDay = 1 + bDaysAfterLoftiness1 - bNumMonthsFromLoftiness * 19;
bMonth = bNumMonthsFromLoftiness;
if (bMonth == 0)
{
bMonth = 19;
}
}
return(new BadiDate(bYear, bMonth, bDay, bDayRelationToMidnight));
}
/// <summary>
/// This day, at sunset
/// </summary>
/// <param name="input"></param>
/// <param name="forceRelationToSunset"></param>
/// <returns></returns>
public DateTime AtSunset(DateTime input, RelationToSunset forceRelationToSunset = RelationToSunset.Undefined)
{
// not actually calculating for now...
var minute = DefaultSunsetMinute;
switch (forceRelationToSunset)
{
case RelationToSunset.gBeforeSunset:
minute--;
break;
case RelationToSunset.gAfterSunset:
minute++;
break;
}
return(new DateTime(input.Year, input.Month, input.Day, DefaultSunsetHour, minute, 0));
}
public void GetBadiDate_AfterNawRuz(int gYear, int gMonth, int gDay, RelationToSunset relationToSunset, int bYear,
int bMonth, int bDay, RelationToMidnight relationToMidnight)
{
_badi.GetBadiDate(new DateTime(gYear, gMonth, gDay), relationToSunset)
.ShouldBe(new BadiDate(bYear, bMonth, bDay, relationToMidnight));
}
