static List <DateTime> GetMissingWeatherDatesForNode(WeatherNode node, DateTime startDate, DateTime endDate)
{
var latitude = node.Latitude;
var longitude = node.Longitude;
var dailyReports = _session.Get <WeatherDaily>(x => x.Latitude == latitude && x.Longitude == longitude).ToList();
var missingDates = new List <DateTime>();
var isWesternHemisphere = node.Longitude <= 0;
var tzOffsetMin = isWesternHemisphere ? -2 : -14;
var tzOffsetMax = isWesternHemisphere ? 14 : 2;
//Or "when is 12:00 AM at this location, relative to UTC?"
for (DateTime date = startDate.Date; date <= endDate.Date; date = date.AddDays(1))
{
var timestamp = TimeConversion.ConvertToTimestamp(date);
var tzOffsetMinTime = TimeConversion.ConvertToTimestamp(date.AddHours(tzOffsetMin));
var tzOffsetMaxTime = TimeConversion.ConvertToTimestamp(date.AddHours(tzOffsetMax));
if (!dailyReports.Any(x => x.Time >= tzOffsetMinTime && x.Time <= tzOffsetMaxTime))
{
var tzOffsetForDate = TimeConversion.GetTimezoneOffsetFromLocationAndDateInSeconds(timestamp, node.Latitude, node.Longitude);
missingDates.Add(date.AddSeconds(-tzOffsetForDate));
}
}
return(missingDates);
}
public void CanGetUTCDayStartFromDateTime()
{
//Arrange
var now = DateTime.Now;
var utcDayStart = TimeConversion.ConvertToTimestamp(DateTime.SpecifyKind(now.Date, DateTimeKind.Utc));
var localDayStart = TimeConversion.ConvertToTimestamp(now.Date);
}
public void CanStripHours()
{
//Arrange
var dayStart = TimeConversion.ConvertToTimestamp(DateTime.SpecifyKind(DateTime.Now.Date, DateTimeKind.Utc));
var testTimestamp = dayStart + 12345;
//Act
var testStripHours = TimeConversion.StripHours(testTimestamp);
//Assert
Assert.AreEqual(dayStart, testStripHours);
}
public virtual IHttpActionResult GetLatest(int latitude, int longitude)
{
return(GetAtTime(latitude, longitude, TimeConversion.ConvertToTimestamp(DateTime.Now)));
}