/*
 * EquipmentListFacadeImpl.java
 * Copyright 2011 Connor Petty <cpmeister@users.sourceforge.net>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 * 
 * Created on Jan 23, 2011, 5:35:52 PM
 */
package pcgen.gui2.facade;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import pcgen.core.Equipment;
import pcgen.facade.core.EquipmentFacade;
import pcgen.facade.core.EquipmentListFacade;
import pcgen.facade.util.AbstractListFacade;

/**
 *
 * @author Connor Petty <cpmeister@users.sourceforge.net>
 */
public class EquipmentListFacadeImpl extends AbstractListFacade<EquipmentFacade>
		implements EquipmentListFacade
{

	private ArrayList<EquipmentFacade> equipmentList;
	private Map<EquipmentFacade, Integer> quantityMap;

	public EquipmentListFacadeImpl()
	{
		equipmentList = new ArrayList<>();
		quantityMap = new HashMap<>();
	}

	public EquipmentListFacadeImpl(List<Equipment> list)
	{
		equipmentList = new ArrayList<>(list);
		quantityMap = new HashMap<>();
		for (Equipment equipment : list)
		{
			quantityMap.put(equipment, equipment.getQty().intValue());
		}
	}

	/**
	 * Refresh the equipment list facade with the supplied data.
	 * @param list The new list of equipment.
	 */
	public void refresh(List<Equipment> list)
	{
		equipmentList = new ArrayList<>(list);
		quantityMap = new HashMap<>();
		for (Equipment equipment : list)
		{
			quantityMap.put(equipment, equipment.getQty().intValue());
		}
		fireElementsChanged(this);
	}
	@Override
	public void addEquipmentListListener(EquipmentListListener listener)
	{
		listenerList.add(EquipmentListListener.class, listener);
	}

	@Override
	public void removeEquipmentListListener(EquipmentListListener listener)
	{
		listenerList.remove(EquipmentListListener.class, listener);
	}

	private void fireQuantityChangedEvent(Object source, EquipmentFacade equipment, int index)
	{
		Object[] listeners = listenerList.getListenerList();
		EquipmentListEvent e = null;
		for (int i = listeners.length - 2; i >= 0; i -= 2)
		{
			if (listeners[i] == EquipmentListListener.class)
			{
				if (e == null)
				{
					e = new EquipmentListEvent(source, equipment, index);
				}
				((EquipmentListListener) listeners[i + 1]).quantityChanged(e);
			}
		}
	}

	public void addElement(EquipmentFacade equipment, int quantity)
	{
		equipmentList.add(equipment);
		quantityMap.put(equipment, quantity);
		fireElementAdded(this, equipment, equipmentList.size() - 1);
	}

	public void removeElement(EquipmentFacade equipment)
	{
		int index = equipmentList.indexOf(equipment);
		if (index != -1)
		{
			equipmentList.remove(equipment);
			quantityMap.remove(equipment);
			fireElementRemoved(this, equipment, index);
		}
	}

	@Override
	public int getQuantity(EquipmentFacade equipment)
	{
		if (quantityMap.containsKey(equipment))
		{
			return quantityMap.get(equipment);
		}
		return 0;
	}

	public void setQuantity(EquipmentFacade equipment, int quantity)
	{
		quantityMap.put(equipment, quantity);
		fireQuantityChangedEvent(this, equipment, equipmentList.indexOf(equipment));
	}

	@Override
	public EquipmentFacade getElementAt(int index)
	{
		return equipmentList.get(index);
	}

	@Override
	public int getSize()
	{
		return equipmentList.size();
	}

	@Override
	public void modifyElement(EquipmentFacade equipment)
	{
		fireElementModified(this, equipment, equipmentList.indexOf(equipment));
	}
}