public Times ApplyOffset(Dictionary<TimeNames, double> offsets)
{
var t = new Times(
Imsak + offsets[TimeNames.Imsak] / 60,
Fajr + offsets[TimeNames.Fajr] / 60,
Sunrise + offsets[TimeNames.Sunrise] / 60,
Dhuhur + offsets[TimeNames.Dhuhur] / 60,
Asr + offsets[TimeNames.Asr] / 60,
Sunset + offsets[TimeNames.Sunset] / 60,
Magrib + offsets[TimeNames.Magrib] / 60,
Isha + offsets[TimeNames.Isha] / 60);
return t;
}
public Times ToLongitudePortions(double timezone, double longitude)
{
var t = new Times(
Imsak + timezone - longitude / 15,
Fajr + timezone - longitude / 15,
Sunrise + timezone - longitude / 15,
Dhuhur + timezone - longitude / 15,
Asr + timezone - longitude / 15,
Sunset + timezone - longitude / 15,
Magrib + timezone - longitude / 15,
Isha + timezone - longitude / 15);
return t;
}
public Times ToDayPortions()
{
var t = new Times(
Imsak/24,
Fajr/24,
Sunrise/24,
Dhuhur/24,
Asr/24,
Sunset/24,
Magrib/24,
Isha/24);
return t;
}
private PrayerTimeDto ComputeTimes()
{
var times = new Times(5, 5, 6, 12, 13, 18, 18, 18);
times = ComputePrayerTimes(times);
times = AdjustTimes(times);
// Add midnight time
times.Midnight = _settings.Midnight == MidnightMethods.Jafari
? times.Magrib +
TimeDiff(times.Magrib, times.Fajr)/2.0
: times.Sunset +
TimeDiff(times.Sunset, times.Sunrise)/2.0;
times = TuneTimes(times);
return ModifyFormats(times);
}
private PrayerTimeDto ModifyFormats(Times times)
{
return times.GetFormattedTimes(_timeFormat);
}
private Times ComputePrayerTimes(Times times)
{
times = times.ToDayPortions();
var imsak = SunAngleTime(_settings.Imsak, times.Imsak, Directions.CCW);
var fajr = SunAngleTime(_settings.Fajr, times.Fajr, Directions.CCW);
var sunrise = SunAngleTime(RiseSetAngle(), times.Sunrise, Directions.CCW);
var dhuhur = MidDay(times.Dhuhur);
var asr = AsrTime(AsrFactor(_settings.AsrJuristic), times.Asr);
var sunset = SunAngleTime(RiseSetAngle(), times.Sunset);
var magrib = SunAngleTime(_settings.Magrib, times.Magrib);
var isha = SunAngleTime(_settings.Isha, times.Isha);
var t = new Times(imsak, fajr, sunrise, dhuhur, asr, sunset, magrib, isha);
return t;
}
private Times AdjustHighLatitudes(Times times)
{
var nightTime = TimeDiff(times.Sunset, times.Sunrise);
times.Imsak = AdjustHLTime(times.Imsak, times.Sunrise, _settings.Imsak, nightTime, Directions.CCW);
times.Fajr = AdjustHLTime(times.Fajr, times.Sunrise, _settings.Fajr, nightTime, Directions.CCW);
times.Isha = AdjustHLTime(times.Isha, times.Sunset, _settings.Isha, nightTime);
times.Magrib = AdjustHLTime(times.Magrib, times.Sunset, _settings.Magrib, nightTime);
return times;
}
private Times AdjustTimes(Times times)
{
times = times.ToLongitudePortions(_timezone, _longitude);
if (_settings.HighLatitudeMethod != HighLatitudeMethods.None)
times = AdjustHighLatitudes(times);
if (_settings.IsImsakInMinutes)
times.Imsak = times.Fajr - _settings.Imsak/60.0;
if (_settings.IsMagribInMinutes)
times.Magrib = times.Sunset + _settings.Magrib/60.0;
if (_settings.IsIshaInMinutes)
times.Isha = times.Magrib + _settings.Isha/60.0;
times.Dhuhur += _settings.DhuhurInMinutes/60.0;
return times;
}
private Times TuneTimes(Times times)
{
// Apply offsets to the times
times = times.ApplyOffset(_offsets);
return times;
}