public async Task <IEnumerable <Lift> > GetNearByAsync(double latitude, double longitude)
{
var lifts = await _liftsRepository.GetNearByAsync(latitude, longitude);
var liftCounts = await _liftLinesRepository.LiftSkiersWaitingAsync();
var liftHistory = await _liftLinesRepository.LiftWaitHistoryAsync(TimeSpan.FromMinutes(30));
foreach (var lift in lifts)
{
lift.WaitingTime = lift.Status != LiftStatus.Open ? -1 :
ComputeWaitTime(liftCounts.FirstOrDefault(l => l.Item1 == lift.Name)?.Item2);
var history = liftHistory.Where(lh => lh.Item1 == lift.Name)
.Select(lh => Tuple.Create(lh.Item2, lh.Item3));
lift.StayAway = ShowStayAway(lift) ? true : await AnomalyDetector.SlowChairliftAsync(history);
}
return(lifts);
}
