private void ChooseOrderBoxToPack()
{
// If orderBoxBeingPacked != null -> throw error
if (_orderBoxBeingPacked != null)
{
throw new InvalidDataException($"{nameof(_orderBoxBeingPacked)} should be null when this is called.");
}
// Loop through orderBoxes
foreach (var orderBox in OrderBoxes)
{
// Loop through unpacked lines
foreach (var line in orderBox.LinesNotPickedIn(_areaCode))
{
// If line matches shelfbox then
if (ShelfBoxes.Any(s => Equals(s.Line.Article, line.Article)))
{
// Create new OrderBoxLineBeingPicked with orderBox and line to be picked
_orderBoxBeingPacked = new OrderBoxPickingContainer(orderBox, line);
// Listen to orderBoxLineBeingPicked's finishedEvent
_orderBoxBeingPacked.OnLinePickedForOrderBox += OrderBoxLineFinishedPacking;
// Return, since we have found a pickable line
return;
}
}
}
}
private void OrderBoxLineFinishedPacking(OrderBox orderBox)
{
// Check if any shelfBoxes can be evicted
MaybeEvictShelfBoxes();
// Set orderBoxLineBeingPicked to null
_orderBoxBeingPacked = null;
// If orderBox is fully packed then
if (!orderBox.LinesNotPickedIn(_areaCode).Any())
{
// Evict orderBox
EvictOrderBox(orderBox);
}
}