/*
 * Copyright (C) 2004-2015 L2J Server
 * 
 * This file is part of L2J Server.
 * 
 * L2J Server is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * L2J Server 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
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package com.l2jserver.gameserver.network.clientpackets;

import java.util.Arrays;

import com.l2jserver.Config;
import com.l2jserver.gameserver.model.PcCondOverride;
import com.l2jserver.gameserver.model.actor.instance.L2PcInstance;
import com.l2jserver.gameserver.model.items.L2EtcItem;
import com.l2jserver.gameserver.model.items.L2Item;
import com.l2jserver.gameserver.model.items.instance.L2ItemInstance;
import com.l2jserver.gameserver.network.SystemMessageId;
import com.l2jserver.gameserver.network.serverpackets.InventoryUpdate;
import com.l2jserver.gameserver.network.serverpackets.SystemMessage;

/**
 * @author Zoey76
 */
public class RequestUnEquipItem extends L2GameClientPacket
{
	private static final String _C__16_REQUESTUNEQUIPITEM = "[C] 16 RequestUnequipItem";
	
	private int _slot;
	
	/**
	 * Packet type id 0x16 format: cd
	 */
	@Override
	protected void readImpl()
	{
		_slot = readD();
	}
	
	@Override
	protected void runImpl()
	{
		if (Config.DEBUG)
		{
			_log.fine("Request unequip slot " + _slot);
		}
		
		final L2PcInstance activeChar = getClient().getActiveChar();
		if (activeChar == null)
		{
			return;
		}
		
		final L2ItemInstance item = activeChar.getInventory().getPaperdollItemByL2ItemId(_slot);
		// Wear-items are not to be unequipped.
		if (item == null)
		{
			return;
		}
		
		// The English system message say weapon, but it's applied to any equipped item.
		if (activeChar.isAttackingNow() || activeChar.isCastingNow() || activeChar.isCastingSimultaneouslyNow())
		{
			activeChar.sendPacket(SystemMessageId.CANNOT_CHANGE_WEAPON_DURING_AN_ATTACK);
			return;
		}
		
		// Arrows and bolts.
		if ((_slot == L2Item.SLOT_L_HAND) && (item.getItem() instanceof L2EtcItem))
		{
			return;
		}
		
		// Prevent of unequipping a cursed weapon.
		if ((_slot == L2Item.SLOT_LR_HAND) && (activeChar.isCursedWeaponEquipped() || activeChar.isCombatFlagEquipped()))
		{
			return;
		}
		
		// Prevent player from unequipping items in special conditions.
		if (activeChar.isStunned() || activeChar.isSleeping() || activeChar.isParalyzed() || activeChar.isAlikeDead())
		{
			return;
		}
		
		if (!activeChar.getInventory().canManipulateWithItemId(item.getId()))
		{
			activeChar.sendPacket(SystemMessageId.ITEM_CANNOT_BE_TAKEN_OFF);
			return;
		}
		
		if (item.isWeapon() && item.getWeaponItem().isForceEquip() && !activeChar.canOverrideCond(PcCondOverride.ITEM_CONDITIONS))
		{
			activeChar.sendPacket(SystemMessageId.ITEM_CANNOT_BE_TAKEN_OFF);
			return;
		}
		
		final L2ItemInstance[] unequipped = activeChar.getInventory().unEquipItemInBodySlotAndRecord(_slot);
		activeChar.broadcastUserInfo();
		
		// This can be 0 if the user pressed the right mouse button twice very fast.
		if (unequipped.length > 0)
		{
			SystemMessage sm = null;
			if (unequipped[0].getEnchantLevel() > 0)
			{
				sm = SystemMessage.getSystemMessage(SystemMessageId.EQUIPMENT_S1_S2_REMOVED);
				sm.addInt(unequipped[0].getEnchantLevel());
			}
			else
			{
				sm = SystemMessage.getSystemMessage(SystemMessageId.S1_DISARMED);
			}
			sm.addItemName(unequipped[0]);
			activeChar.sendPacket(sm);
			
			InventoryUpdate iu = new InventoryUpdate();
			iu.addItems(Arrays.asList(unequipped));
			activeChar.sendPacket(iu);
		}
	}
	
	@Override
	public String getType()
	{
		return _C__16_REQUESTUNEQUIPITEM;
	}
}