public async Task <IActionResult> Get(
[FromRoute] string location,
[FromRoute] DawnDuskType dawnduskType,
[FromRoute] string dateInput)
{
if (dawnduskType == DawnDuskType.Unknown)
{
return(BadRequest("Invalid Dawn/Dusk request type, accepted values: sunrise|sunset|zenith|dayDuration|all"));
}
if (string.IsNullOrWhiteSpace(location))
{
return(BadRequest("Location must be provided"));
}
DateTimeOffset?date = GetDateFromInput(dateInput);
if (date.HasValue)
{
var coordinates = await _geolocationHelper.GetLocationAsync(location);
if (coordinates == null)
{
return(BadRequest($"Location {location} not found"));
}
var utcOffset = await _geolocationHelper.GetUtcOffsetAsync(coordinates, date.Value);
return(Ok(new DawnDusk(date.Value, coordinates, dawnduskType, utcOffset)));
}
return(BadRequest("Invalid date, accepted values: now|tomorrow|yesterday|date(YYYY-MM-DD)"));
}
public DawnDusk(DateTimeOffset date, GeoCoordinates coordinates, DawnDuskType dawnDuskType, double utcOffset)
{
Date = date.Date;
var mLon = (coordinates.Longitude * 4.0) / 60.0;
var solarDeclination = GetDeclination(GetDay(date));
var Ho = GetHo(solarDeclination, coordinates.Latitude, coordinates.Longitude);
var equationOfTime = GetEoT(GetDay(date));
Meridian = 12.0 + equationOfTime - mLon + utcOffset;
Sunrise = Meridian - Ho;
Sunset = Meridian + Ho;
Duration = Ho * 2;
_dawnDuskType = dawnDuskType;
}
