private DateTimeOffset CalcLocalTime(FlightTime flightTime, AirportModel arrivingAt, DateTimeOffset departDate)
{
DateTimeOffset arrivalTime = departDate.Add(flightTime.Duration);
TimeZoneInfo timeZoneInfo = ContosoTravel.Web.Application.Extensions.TimeZoneHelper.FindSystemTimeZoneById(arrivingAt.TimeZone);
if (timeZoneInfo.IsDaylightSavingTime(arrivalTime))
{
arrivalTime = arrivalTime.AddHours(1);
}
return(TimeZoneInfo.ConvertTime(arrivalTime.DateTime, timeZoneInfo));
}
public async Task <IEnumerable <FlightModel> > GetAll(CancellationToken cancellationToken)
{
Random random = new Random();
List <FlightModel> allFlights = new List <FlightModel>();
foreach (var flightTime in FlightTime.GetAll())
{
var departingFrom = await _airportDataProvider.FindByCode(flightTime.DepartingFrom, CancellationToken.None);
var arrivingAt = await _airportDataProvider.FindByCode(flightTime.ArrivingAt, CancellationToken.None);
for (int dayOffset = -1; dayOffset < 7; dayOffset++)
{
int numberOfFlights = random.Next(3, 5);
DateTime today = DateTime.Now.Date.AddDays(dayOffset);
TimeZoneInfo departingTimeZone = ContosoTravel.Web.Application.Extensions.TimeZoneHelper.FindSystemTimeZoneById(departingFrom.TimeZone);
for (int ii = 0; ii < numberOfFlights; ii++)
{
int minutesToAddToFiveAm = (int)(random.NextDouble() * 19d * 60d);
DateTimeOffset departDate = DateTimeOffset.Parse($"{today.ToString("MM/dd/yyyy")} 5:00 AM {departingTimeZone.BaseUtcOffset.Hours.ToString("00")}:{departingTimeZone.BaseUtcOffset.Minutes.ToString("00")}").AddMinutes(minutesToAddToFiveAm);
if (departingTimeZone.IsDaylightSavingTime(today))
{
departDate = departDate.AddHours(1);
}
allFlights.Add(new FlightModel()
{
DepartingFromAiport = departingFrom,
DepartingFrom = flightTime.DepartingFrom,
ArrivingAtAiport = arrivingAt,
ArrivingAt = flightTime.ArrivingAt,
Duration = flightTime.Duration,
DepartureTime = departDate,
Cost = 1500d * random.NextDouble(),
ArrivalTime = CalcLocalTime(flightTime, arrivingAt, departDate)
});
}
}
}
return(allFlights);
}
