public bool CanVoidSelectedItems(IEnumerable <TicketItem> items)
{
if (!CanRemoveSelectedItems(items))
{
return(false);
}
foreach (var item in items)
{
if (!TicketItems.Contains(item))
{
return(false);
}
if (item.Voided)
{
return(false);
}
if (item.Gifted)
{
return(false);
}
if (!item.Locked)
{
return(false);
}
}
return(true);
}
public bool CanCancelSelectedItems(IEnumerable <TicketItem> items)
{
if (items.Count() == 0)
{
return(false);
}
foreach (var item in items)
{
if (!TicketItems.Contains(item))
{
return(false);
}
if (item.Locked && !item.Gifted)
{
return(false);
}
}
return(true);
}
public IEnumerable <TicketItem> ExtractSelectedTicketItems(IEnumerable <TicketItem> selectedItems)
{
var newItems = new List <TicketItem>();
foreach (var selectedTicketItem in selectedItems)
{
Debug.Assert(selectedTicketItem.SelectedQuantity > 0);
Debug.Assert(TicketItems.Contains(selectedTicketItem));
if (selectedTicketItem.SelectedQuantity >= selectedTicketItem.Quantity)
{
continue;
}
var newItem = CloneItem(selectedTicketItem);
newItem.Quantity = selectedTicketItem.SelectedQuantity;
selectedTicketItem.Quantity -= selectedTicketItem.SelectedQuantity;
newItems.Add(newItem);
}
return(newItems);
}