/*
 * Copyright (c) 2013 L2jMobius
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
 * IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.l2jmobius.gameserver.network.serverpackets;

import java.util.Collection;

import org.l2jmobius.commons.network.buffer.WriteBuffer;
import org.l2jmobius.gameserver.entity.actor.Player;
import org.l2jmobius.gameserver.entity.item.instance.Item;
import org.l2jmobius.gameserver.network.GameClient;
import org.l2jmobius.gameserver.network.ServerPackets;
import org.l2jmobius.gameserver.network.holders.TradeItem;
import org.l2jmobius.gameserver.network.holders.TradeList;

/**
 * @author Beetle
 */
public class TradeUpdate extends ServerPacket
{
	private final Collection<Item> _items;
	private final Collection<TradeItem> _tradeItems;
	
	public TradeUpdate(TradeList trade, Player player)
	{
		_items = player.getInventory().getItems();
		_tradeItems = trade.getItems();
	}
	
	private int getItemCount(int objectId)
	{
		for (Item item : _items)
		{
			if (item.getObjectId() == objectId)
			{
				return item.getCount();
			}
		}
		
		return 0;
	}
	
	@Override
	public void writeImpl(GameClient client, WriteBuffer buffer)
	{
		ServerPackets.TRADE_UPDATE.writeId(this, buffer);
		buffer.writeShort(_tradeItems.size());
		for (TradeItem item : _tradeItems)
		{
			int aveCount = getItemCount(item.getObjectId()) - item.getCount();
			boolean stackable = item.getItem().isStackable();
			if (aveCount == 0)
			{
				aveCount = 1;
				stackable = false;
			}
			
			buffer.writeShort(stackable ? 3 : 2);
			buffer.writeShort(item.getItem().getType1()); // item type1
			buffer.writeInt(item.getObjectId());
			buffer.writeInt(item.getItem().getId());
			buffer.writeInt(aveCount);
			buffer.writeShort(item.getItem().getType2()); // item type2
			buffer.writeShort(0); // ?
			buffer.writeInt(item.getItem().getBodyPart().getMask()); // rev 415 slot 0006-lr.ear 0008-neck 0030-lr.finger 0040-head 0080-?? 0100-l.hand 0200-gloves 0400-chest 0800-pants 1000-feet 2000-?? 4000-r.hand 8000-r.hand
			buffer.writeShort(item.getEnchant()); // enchant level
			buffer.writeShort(0); // ?
			buffer.writeShort(0);
		}
	}
}
