/// <summary>
/// The priority method that is called when
/// inserting orders into the ready for shipping queue
/// </summary>
/// <param name="a">An order to compare</param>
/// <param name="b">Another order to compare</param>
/// <returns></returns>
public int Compare(Order a, Order b)
{
DateTime aTime = a.Created;
DateTime bTime = b.Created;
// Add the estimated delivery.
// This forces shorter trips to have higher priority
aTime = aTime.AddMinutes(fromWarehouse.GetOrderDeliveryMinutes(a));
bTime = bTime.AddMinutes(fromWarehouse.GetOrderDeliveryMinutes(b));
return(DateTime.Compare(bTime, aTime));
}
public virtual void ProcessOrder()
{
// Artificially advance the time to the next order waiting to be created
// This is a fail safe, just in case the the processing of orders don't advance time enough
if (!warehouse.HasOrders)
{
orderStreamer.AdvanceTime();
}
// Keep processing orders while there are orders
if (warehouse.HasOrders)
{
Order order;
// If there isn't time for delivery the order should be moved to next day delivery
if (!warehouse.HasTimeToDeliverNextOrder(orderStreamer.CurrentTime))
{
warehouse.MoveNextOrderToNextDay();
}
else if (warehouse.TrySendNextOrder(out order)) // Try to send the order out of the warehouse
{
// Create a delivered order and track its status and times
DeliveredOrder outboundOrder = new DeliveredOrder(order.Id);
outboundOrder.OrderPlaced = order.Created;
outboundOrder.DepartureTime = orderStreamer.CurrentTime;
outboundOrder.DeliveredTime = outboundOrder.DepartureTime;
// Time traveled to the destination
double travelMinutes = warehouse.GetOrderDeliveryMinutes(order);
outboundOrder.DeliveredTime = outboundOrder.DeliveredTime.AddMinutes(travelMinutes);
// Total time traveled, includes to destination and returning back to the warehouse
travelMinutes += warehouse.GetOrderReturnMinutes(order);
completedOrders.Add(outboundOrder);
deliveredOrderAction(outboundOrder);
switch (outboundOrder.GetRating())
{
case OrderHelper.RatingType.Detractor:
detractors++;
break;
case OrderHelper.RatingType.Promoter:
promoters++;
break;
}
warehouse.DockDrone();
// Update the mock global time (will also bring more new orders depending on the time)
orderStreamer.AddMinutesToTime(travelMinutes);
}
}
}