/// <summary>
/// Checks whether provided event is expected according to this itinerary specification.
/// </summary>
/// <param name="event">A handling event.</param>
/// <returns>True, if it is expected. Otherwise - false.
/// If itinerary is empty, returns false.</returns>
public Boolean IsExpected(HandlingEvent @event)
{
if (IsEmpty)
{
return false;
}
if (@event.EventType == HandlingEventType.Receive)
{
Leg firstLeg = m_legs.First();
return firstLeg.LoadLocation == @event.Location;
}
if (@event.EventType == HandlingEventType.Claim)
{
Leg lastLeg = m_legs.Last();
return lastLeg.UnloadLocation == @event.Location;
}
if (@event.EventType == HandlingEventType.Load)
{
return m_legs.Any(x => x.LoadLocation == @event.Location);
}
if (@event.EventType == HandlingEventType.Unload)
{
return m_legs.Any(x => x.UnloadLocation == @event.Location);
}
//@event.EventType == HandlingEventType.Customs
return true;
}
private Delivery(HandlingEvent lastHandlingEvent, Itinerary itinerary,
RouteSpecification specification)
{
m_calculatedAt = DateTime.Now;
m_lastEvent = lastHandlingEvent;
m_misdirected = CalculateMisdirectionStatus(itinerary);
m_routingStatus = CalculateRoutingStatus(itinerary, specification);
m_transportStatus = CalculateTransportStatus();
m_lastKnownLocation = CalculateLastKnownLocation();
m_eta = CalculateEta(itinerary);
m_nextExpectedActivity = CalculateNextExpectedActivity(specification, itinerary);
m_isUnloadedAtDestination = CalculateUnloadedAtDestination(specification);
}
/// <summary>
/// Creates a new delivery snapshot based on the complete handling history of a cargo, as well
/// as its route specification and itinerary.
/// </summary>
/// <param name="specification">Current route specification.</param>
/// <param name="itinerary">Current itinerary.</param>
/// <param name="lastHandlingEvent">Most recent handling event.</param>
/// <returns>Delivery status description.</returns>
public static Delivery DerivedFrom(
RouteSpecification specification,
Itinerary itinerary,
HandlingEvent lastHandlingEvent)
{
return new Delivery(lastHandlingEvent, itinerary, specification);
}
/// <summary>
/// Updates delivery progress information according to handling history.
/// </summary>
/// <param name="lastHandlingEvent">Most recent handling event.</param>
public void DeriveDeliveryProgress(HandlingEvent lastHandlingEvent)
{
Delivery = Delivery.DerivedFrom(RouteSpecification, Itinerary, lastHandlingEvent);
if (Delivery.IsMisdirected)
{
m_eventAggegator.Publish<CargoWasMisdirectedEvent>(
new CargoWasMisdirectedEvent(this));
}
else if (Delivery.IsUnloadedAtDestination)
{
m_eventAggegator.Publish<CargoHasArrivedEvent>(
new CargoHasArrivedEvent(this));
}
}