/**
* Adds the specified item to a productContainer
*
* @param item The Item to add
* @param container The ProductContainer to add the Item to
* @pre item != null
* @pre items.contains(item)
* @pre productsToItems.get(item.getProduct()).contains(item)
* @post removedItems.contains(item)
* @post !items.contains(item)
*/
@Override
public void unmanage(Item item) {
undoManage(item);
Set<Item> items = new TreeSet<Item>();
if (removedItems.containsKey(item.getProduct())) items = removedItems.get(item.getProduct());
items.add(item);
removedItems.put(item.getProduct(), items);
notifyObservers(new Action(item, ActionType.DELETE));
}
@Override
public void editItem(Item item, Date newEntryDate) {
items.remove(item);
Set<Item> localItems = productsToItems.remove(item.getProduct());
localItems.remove(item);
item.setEntryDate(newEntryDate);
localItems.add(item);
productsToItems.put(item.getProduct(), localItems);
items.add(item);
notifyObservers(new Action(item, ActionType.EDIT));
}
/**
* @param item
* @pre item != null
* @pre removedItems.contains(item)
* @post !removedItems.contains(item)
* @post items.contains(item)
* @post productsToItems.contains(item.getBarcode())
*/
@Override
public void remanage(Item item) {
if (item == null) {
throw new IllegalArgumentException("Null Item item");
}
if (removedItems.get(item.getProduct()) == null
|| !removedItems.get(item.getProduct()).contains(item))
throw new IllegalStateException("removedItems does not contain this item");
removedItems.get(item.getProduct()).remove(item);
manage(item);
notifyObservers(new Action(item, ActionType.CREATE));
}
public String toString() {
String result = "";
for (Item itm : item) {
result += String.format("%2d %-20s %-20s\n", itm.getQty(), itm.getProduct(), itm.getNotes());
}
return result;
}
/**
* Undo the management of an Item without adding it to the RemovedItems list.
*
* @param item the Item to unmanage
* @pre true
* @post !items.contains(item) && !removedItems.contains(item);
*/
@Override
public void undoManage(Item item) {
if (item == null) throw new IllegalArgumentException("Item to unmanage can't be null.");
// System.out.println("Unmanaging item " + item.getBarcode() + " "
// + item.getProduct().getDescription());
if (!items.contains(item) || !productsToItems.get(item.getProduct()).contains(item)) {
throw new IllegalStateException("unmanage() being called before manage()");
}
items.remove(item);
Set<Item> found = productsToItems.get(item.getProduct());
found.remove(item);
if (found.isEmpty()) productsToItems.remove(item.getProduct());
item.remove();
notifyObservers(new Action(item, ActionType.DELETE));
notifyObservers(new Action(item, ActionType.DEEP_DELETE));
}
/**
* Adds the given item to this Manager's indexes
*
* @param item Item to manage
* @pre item != null
* @post items.contains(item)
* @post productsToItems.get(item.getProduct()).contains(item)
*/
@Override
public void manage(Item item) {
if (item == null) {
throw new IllegalArgumentException("Null Item item");
}
// System.out.println("Managing item " + item.getBarcode() + " "
// + item.getProduct().getDescription());
Set<Item> found = productsToItems.get(item.getProduct());
if (found != null) found.add(item);
else {
TreeSet<Item> prItems = new TreeSet<Item>();
prItems.add(item);
productsToItems.put(item.getProduct(), prItems);
}
items.add(item);
notifyObservers(new Action(item, ActionType.CREATE));
}
