/* This method was written by Bob van Beek (610685) */
/// <summary>
/// Asynchronous method which retrieves the current Delivery of a Deliverer from the context.
/// </summary>
/// <param name="delivererId"></param>
/// <returns></returns>
public async Task <Delivery> GetCurrentDeliveryForDeliverer(Guid delivererId)
{
try
{
_logger.Information($"A request has been made to get the current Delivery for Deliverer {delivererId} from the context.");
Delivery d = await _deliveriesRepository.GetCurrentDeliveryForDeliverer(delivererId);
if (d == null)
{
throw new ArgumentNullException("Dependency failure: The repository returned null");
}
Delivery d2 = await AggregateLocations(d);
return(d2 ?? throw new ArgumentNullException("Dependency failure: AggregateLocations returned null."));
}
catch (Exception e) // Error handling
{
_logger.Error($"IDeliveriesService says: {e.Message} Exception occured on line {new StackTrace(e, true).GetFrame(0).GetFileLineNumber()}.");
return(null);
}
}
