/// <summary>
/// Initializes this ViewModel.
/// </summary>
private void PopulateKitchenOrderItemList()
{
try
{
OrderItem tempSelectedKitchenOrderItem = SelectedKitchenOrderItem;
SelectedKitchenOrderItem = null;
// get entire list
EntireOrderItemList = _orderItemManager.GetList();
List <OrderItem> UpdatedOrderItemList = EntireOrderItemList.Where(o => o.IsKitchenProcessCompleted != true).ToList();
OrderItem searchItem = null;
// check with current list, if there is changing, need update
foreach (OrderItem item in UpdatedOrderItemList)
{
searchItem = this.KitchenOrderItemList.SingleOrDefault <OrderItem>(x => x.OrderId == item.OrderId && x.Sequence == item.Sequence);
// no have in current list, it means it is new item
if (searchItem == null)
{
/*item.EdittedQuantity = item.Quantity;
* item.OldQuantity = item.Quantity;
* item.Quantity = 0;*/
item.MarkAsChild();
item.MarkUpdated();
item.AddChangeLog("New order " + item.Quantity + " -> ");
// add this item to list
// add message into item
// ...
KitchenOrderItemList.Add(item);
}
// item exist in current list, check if there is change
else
{
if (item.IsCancelled == true)
{
if (searchItem.IsCancelled != item.IsCancelled)
{
searchItem.MarkUpdated();
searchItem.MarkCancelled();
searchItem.AddChangeLog("Cancelled");
}
}
else
{
switch (searchItem.State)
{
case OrderItemState.Ordered:
if (item.State != OrderItemState.Ordered)
{
searchItem.State = item.State;
//searchItem.EdittedQuantity = item.Quantity - searchItem.Quantity;
//searchItem.UpdatedQuantity = item.Quantity;
searchItem.MarkUpdated();
searchItem.AddChangeLog(searchItem.State.ToString() + " -> ");
}
else
{
if (item.Quantity != searchItem.Quantity)
{
searchItem.State = item.State;
searchItem.SetOldQuantity();
searchItem.Quantity = item.Quantity;
//searchItem.UpdatedQuantity = item.Quantity;
searchItem.MarkUpdated();
searchItem.AddChangeLog("Change quantity " + searchItem.EdittedQuantity.ToString() + " -> ");
}
}
break;
case OrderItemState.Processing:
// do nothing
// must care about problem: undo processing
// can chage quantity at this state? Wondering Who will be permitted?
if (item.State > OrderItemState.Processing)
{
searchItem.State = item.State;
searchItem.MarkUpdated();
searchItem.AddChangeLog(searchItem.State.ToString() + " -> ");
}
break;
case OrderItemState.Ready:
// check new state (if there), dont care other state
if (item.State == OrderItemState.Served)
{
searchItem.State = item.State;
searchItem.MarkUpdated();
searchItem.AddChangeLog(searchItem.State.ToString() + " -> ");
}
break;
case OrderItemState.Served:
{
// do nothing
}
break;
default:
break;
}
}
}
}
// check with current list, is there item cancelled?
foreach (OrderItem item in KitchenOrderItemList.ToList())
{
searchItem = UpdatedOrderItemList.SingleOrDefault <OrderItem>(x => x.OrderId == item.OrderId && x.Sequence == item.Sequence);
// no have in current list, it means it is new item
if (searchItem == null)
{
// search in entire list
searchItem = EntireOrderItemList.Where(o => o.IsKitchenProcessCompleted == true).SingleOrDefault <OrderItem>(x => x.OrderId == item.OrderId && x.Sequence == item.Sequence);
if (searchItem != null)
{
// if this item is served
if (item.State == OrderItemState.Served || item.IsCancelled == true)
{
// if user acknowledged this item
if (item.IsAcknownledged == true)
{
// need remove it from list
KitchenOrderItemList.Remove(item);
}
//else // user not acknowledge it, let it display for user
}
else
{
// after long time, list is updated but this item is remove from kitchen list
item.State = searchItem.State;
item.IsCancelled = searchItem.IsCancelled;
item.Quantity = searchItem.Quantity;
item.MarkUpdated();
item.AddChangeLog("Order item was processed out.");
}
}
// order of this item is checked out or cancelled
else
{
if (item.State == OrderItemState.OutOfKitchen)
{
if (item.IsAcknownledged == true)
{
// need remove it from list
KitchenOrderItemList.Remove(item);
}
}
else
{
item.State = OrderItemState.OutOfKitchen;
item.MarkUpdated();
item.AddChangeLog("Order is checked out.");
}
}
}
}
Sort(KitchenOrderItemList);
if (tempSelectedKitchenOrderItem != null && tempSelectedKitchenOrderItem.IsUpdated != true)
{
SelectedKitchenOrderItem = tempSelectedKitchenOrderItem;
}
// update completed item list
CompletedOrderItemList = new ObservableCollection <OrderItem>((List <OrderItem>)(KitchenOrderItemList as IEditableCollection).GetDeletedList());
}
catch (Exception ex)
{
this.messageBoxService.ShowError(this.GetType().FullName + System.Reflection.MethodBase.GetCurrentMethod().Name + ": " + ex.Message);
}
}