public async Task RunTrainAsync(TrainSettings trainSettings, CancellationToken token)
{
while (!token.IsCancellationRequested)
{
try
{
var train = await GetDataAsync(trainSettings, token);
await sender.SendAsync(trainSettings.Name, train);
int delay;
if (train.State == TrainState.Delayed && !train.TimeAtLocation.HasValue)
{
delay = 30 * 1000;
}
else if (train.AdvertisedTimeAtLocation.Subtract(DateTime.Now).TotalHours < 1 && !train.TimeAtLocation.HasValue)
{
delay = 60 * 1000;
}
else
{
delay = 60 * 1000 * 5;
}
logger.LogTrace("Sleeping for {0} seconds", delay);
await Task.Delay(delay, token);
}
catch (HttpRequestException ex)
{
logger.LogWarning(ex, "Failed to communicate with Trafikverket!");
await Task.Delay(60 * 1000 * 5, token);
}
catch (MqttCommunicationException ex)
{
logger.LogWarning(ex, "Failed to communicate with Trafikverket!");
await Task.Delay(60 * 1000 * 5, token);
}
catch (MqttTimeoutException ex)
{
logger.LogWarning(ex, "Failed to communicate with Trafikverket!");
await Task.Delay(60 * 1000 * 5, token);
}
catch (MqttClientException ex)
{
logger.LogWarning(ex, "Failed to communicate with MQTT server, error code: ", ex.ErrorCode);
await Task.Delay(60 * 1000 * 5, token);
}
}
}
public async Task <Train> GetDataAsync(TrainSettings trainSettings, CancellationToken token)
{
logger.LogDebug("Getting departure station");
var departureTrainStation = await trainStationClient.GetAsync(trainSettings.DepartureLocationName, token);
logger.LogDebug("Getting destination station");
var destinationTrainStation = await trainStationClient.GetAsync(trainSettings.DestinationLocationName, token);
if (departureTrainStation == null)
{
return(Train.DepartureStationNotFound);
}
if (destinationTrainStation == null)
{
return(Train.DestinationStationNotFound);
}
TrainAnnouncement trainAnnouncement;
logger.LogDebug("Getting train announcement");
if (trainSettings.DepatureTime.HasValue)
{
var departureTime = DateTime.Today.Add(trainSettings.DepatureTime.Value);
trainAnnouncement = await trainAnnouncementClient.GetTrainStopAsync(departureTrainStation.LocationSignature, destinationTrainStation.LocationSignature, departureTime, token);
}
else
{
trainAnnouncement = await trainAnnouncementClient.GetTrainStopAsync(departureTrainStation.LocationSignature, destinationTrainStation.LocationSignature, DateTime.Now, token);
}
if (trainAnnouncement == null)
{
return(Train.TrainRideNotFound);
}
else
{
return(new Train(trainAnnouncement));
}
}