/// <summary>
/// Refreshes the data.
/// </summary>
protected override async Task RefreshAsync(bool force, CancellationToken token)
{
if (Settings.Stations.Count == 0)
{
var defaultStationsResponse = await _transportService.GetDefaultStationsAsync(token);
if (defaultStationsResponse.Status != TransportStatus.Success)
{
throw new Exception("An error occurred on the server while fetching the default stations.");
}
Settings.Stations = new ObservableCollection <Station>(defaultStationsResponse.Stations);
}
if (SelectedStation == null && Settings.SortByPosition)
{
var locationAndStatus = await _locationService.GetLocationAsync();
var location = locationAndStatus.Item1;
LocationStatus = locationAndStatus.Item2;
if (LocationStatus != GeoLocationStatus.Error)
{
SelectedStation = Settings.Stations.OrderBy(s => s.Position.DistanceTo(location)).First();
}
}
if (SelectedStation == null)
{
SelectedStation = Settings.Stations.First();
}
if (!token.IsCancellationRequested)
{
Trips = Settings.Stations
.Where(s => s != SelectedStation)
.Select(to => new StationTrips(_transportService, SelectedStation, to))
.ToArray();
foreach (var trip in Trips)
{
trip.StartRefresh();
}
}
}
