/*
 * This program 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.
 *
 * This program 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.edelvez.gameserver.model.item;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.List;

import javolution.util.FastList;
import com.edelvez.Config;
import com.edelvez.L2DatabaseFactory;
import com.edelvez.gameserver.datatables.ArmorSetsTable;
import com.edelvez.gameserver.datatables.ItemTable;
import com.edelvez.gameserver.datatables.SkillTable;
import com.edelvez.gameserver.model.L2ArmorSet;
import com.edelvez.gameserver.model.L2ItemInstance;
import com.edelvez.gameserver.model.L2Object;
import com.edelvez.gameserver.model.L2Skill;
import com.edelvez.gameserver.model.L2World;
import com.edelvez.gameserver.model.L2ItemInstance.ItemLocation;
import com.edelvez.gameserver.model.actor.instance.L2PcInstance;
import com.edelvez.gameserver.network.SystemMessageId;
import com.edelvez.gameserver.network.serverpackets.SystemMessage;
import com.edelvez.gameserver.templates.L2Armor;
import com.edelvez.gameserver.templates.L2EtcItem;
import com.edelvez.gameserver.templates.L2EtcItemType;
import com.edelvez.gameserver.templates.L2Item;
import com.edelvez.gameserver.templates.L2Weapon;
import com.edelvez.gameserver.templates.L2WeaponType;

/**
 * This class manages inventory
 *
 * @version $Revision: 1.13.2.9.2.12 $ $Date: 2005/03/29 23:15:15 $ rewritten 23.2.2006 by Advi
 */
public abstract class Inventory extends ItemContainer
{
	// protected static final Logger _log =
	// Logger.getLogger(Inventory.class.getName());
	public interface PaperdollListener
	{
		public void notifyEquiped(int slot, L2ItemInstance inst);

		public void notifyUnequiped(int slot, L2ItemInstance inst);
	}

	public static final int PAPERDOLL_UNDER = 0;
	public static final int PAPERDOLL_LEAR = 1;
	public static final int PAPERDOLL_REAR = 2;
	public static final int PAPERDOLL_NECK = 3;
	public static final int PAPERDOLL_LFINGER = 4;
	public static final int PAPERDOLL_RFINGER = 5;
	public static final int PAPERDOLL_HEAD = 6;
	public static final int PAPERDOLL_RHAND = 7;
	public static final int PAPERDOLL_LHAND = 8;
	public static final int PAPERDOLL_GLOVES = 9;
	public static final int PAPERDOLL_CHEST = 10;
	public static final int PAPERDOLL_LEGS = 11;
	public static final int PAPERDOLL_FEET = 12;
	public static final int PAPERDOLL_BACK = 13;
	public static final int PAPERDOLL_LRHAND = 14;
	public static final int PAPERDOLL_FACE = 15;
	public static final int PAPERDOLL_HAIR = 16;
	public static final int PAPERDOLL_DHAIR = 17;
	// Speed percentage mods
	public static final double MAX_ARMOR_WEIGHT = 12000;
	private final L2ItemInstance[] _paperdoll;
	private final List<PaperdollListener> _paperdollListeners;
	// protected to be accessed from child classes only
	protected int _totalWeight;
	// used to quickly check for using of items of special type
	private int _wearedMask;

	final class FormalWearListener implements PaperdollListener
	{
		public void notifyUnequiped(int slot, L2ItemInstance item)
		{
			if (!(getOwner() != null && getOwner() instanceof L2PcInstance)) {
				return;
			}
			L2PcInstance owner = (L2PcInstance) getOwner();
			if (item.getItemId() == 6408) {
				owner.setIsWearingFormalWear(false);
			}
		}

		public void notifyEquiped(int slot, L2ItemInstance item)
		{
			if (!(getOwner() != null && getOwner() instanceof L2PcInstance)) {
				return;
			}
			L2PcInstance owner = (L2PcInstance) getOwner();
			// If player equip Formal Wear unequip weapons and abort
			// cast/attack
			if (item.getItemId() == 6408)
			{
				owner.setIsWearingFormalWear(true);
			}
			else
			{
				if (!owner.isWearingFormalWear()) {
					return;
				}
			}
		}
	}

	/**
	 * Recorder of alterations in inventory
	 */
	public static final class ChangeRecorder implements PaperdollListener
	{
		private final Inventory _inventory;
		private final List<L2ItemInstance> _changed;

		/**
		 * Constructor of the ChangeRecorder
		 *
		 * @param inventory
		 */
		ChangeRecorder(Inventory inventory)
		{
			_inventory = inventory;
			_changed = new FastList<L2ItemInstance>();
			_inventory.addPaperdollListener(this);
		}

		/**
		 * Add alteration in inventory when item equiped
		 */
		public void notifyEquiped(int slot, L2ItemInstance item)
		{
			if (!_changed.contains(item)) {
				_changed.add(item);
			}
		}

		/**
		 * Add alteration in inventory when item unequiped
		 */
		public void notifyUnequiped(int slot, L2ItemInstance item)
		{
			if (!_changed.contains(item)) {
				_changed.add(item);
			}
		}

		/**
		 * Returns alterations in inventory
		 *
		 * @return L2ItemInstance[] : array of alterated items
		 */
		public L2ItemInstance[] getChangedItems()
		{
			return _changed.toArray(new L2ItemInstance[_changed.size()]);
		}
	}

	final class BowListener implements PaperdollListener
	{
		public void notifyUnequiped(int slot, L2ItemInstance item)
		{
			if (slot != PAPERDOLL_LRHAND) {
				return;
			}
			if (Config.ASSERT) {
				assert null == getPaperdollItem(PAPERDOLL_LRHAND);
			}
			if (item.getItemType() == L2WeaponType.BOW)
			{
				L2ItemInstance arrow = getPaperdollItem(PAPERDOLL_LHAND);
				if (arrow != null) {
					setPaperdollItem(PAPERDOLL_LHAND, null);
				}
			}
		}

		public void notifyEquiped(int slot, L2ItemInstance item)
		{
			if (slot != PAPERDOLL_LRHAND) {
				return;
			}
			if (Config.ASSERT) {
				assert item == getPaperdollItem(PAPERDOLL_LRHAND);
			}
			if (item.getItemType() == L2WeaponType.BOW)
			{
				L2ItemInstance arrow = findArrowForBow(item.getItem());
				if (arrow != null) {
					setPaperdollItem(PAPERDOLL_LHAND, arrow);
				}
			}
		}
	}

	final class StatsListener implements PaperdollListener
	{
		public void notifyUnequiped(int slot, L2ItemInstance item)
		{
			if (slot == PAPERDOLL_LRHAND) {
				return;
			}
			getOwner().removeStatsOwner(item);
		}

		public void notifyEquiped(int slot, L2ItemInstance item)
		{
			if (slot == PAPERDOLL_LRHAND) {
				return;
			}
			getOwner().addStatFuncs(item.getStatFuncs(getOwner()));
		}
	}

	final class ItemPassiveSkillsListener implements PaperdollListener
	{
		public void notifyUnequiped(int slot, L2ItemInstance item)
		{
			L2PcInstance player;
			if (getOwner() instanceof L2PcInstance)
			{
				player = (L2PcInstance) getOwner();
			} else {
				return;
			}
			L2Skill passiveSkill = null;
			L2Skill enchant4Skill = null;
			L2Item it = item.getItem();
			if (it instanceof L2Weapon)
			{
				passiveSkill = ((L2Weapon) it).getSkill();
				// Remove augmentation bonuses on unequip
				if (item.isAugmented() && getOwner() instanceof L2PcInstance) {
					item.getAugmentation().removeBonus((L2PcInstance) getOwner());
				}
				enchant4Skill = ((L2Weapon) it).getEnchant4Skill();
				if (it.getItemId() == 9140 || it.getItemId() == 9141)
				{
					player.removeSkill(SkillTable.getInstance().getInfo(3260, 1), false);
					player.removeSkill(SkillTable.getInstance().getInfo(3261, 1), false);
					player.removeSkill(SkillTable.getInstance().getInfo(3262, 1), false);
				}
			}
			else if (it instanceof L2Armor) {
				passiveSkill = ((L2Armor) it).getSkill();
			}
			if (passiveSkill != null)
			{
				player.removeSkill(passiveSkill, false);
				player.sendSkillList();
			}
			if (enchant4Skill != null)
			{
				player.removeSkill(enchant4Skill, false);
				player.sendSkillList();
			}
		}

		public void notifyEquiped(int slot, L2ItemInstance item)
		{
			L2PcInstance player;
			if (getOwner() instanceof L2PcInstance)
			{
				player = (L2PcInstance) getOwner();
			} else {
				return;
			}
			L2Skill passiveSkill = null;
			L2Skill enchant4Skill = null;
			L2Item it = item.getItem();
			if (it instanceof L2Weapon)
			{
				// Apply augmentation bonuses on equip
				if (item.isAugmented() && getOwner() instanceof L2PcInstance) {
					item.getAugmentation().applyBonus((L2PcInstance) getOwner());
				}
				passiveSkill = ((L2Weapon) it).getSkill();
				if (item.getEnchantLevel() >= 4) {
					enchant4Skill = ((L2Weapon) it).getEnchant4Skill();
				}
				if (it.getItemId() == 9140 || it.getItemId() == 9141)
				{
					player.addSkill(SkillTable.getInstance().getInfo(3260, 1), false);
					player.addSkill(SkillTable.getInstance().getInfo(3261, 1), false);
					player.addSkill(SkillTable.getInstance().getInfo(3262, 1), false);
				}
			}
			else if (it instanceof L2Armor) {
				passiveSkill = ((L2Armor) it).getSkill();
			}
			if (passiveSkill != null)
			{
				player.addSkill(passiveSkill, false);
				player.sendSkillList();
			}
			if (enchant4Skill != null)
			{
				player.addSkill(enchant4Skill, false);
				player.sendSkillList();
			}
		}
	}

	final class ArmorSetListener implements PaperdollListener
	{
		public void notifyEquiped(int slot, L2ItemInstance item)
		{
			if (!(getOwner() instanceof L2PcInstance)) {
				return;
			}
			L2PcInstance player = (L2PcInstance) getOwner();
			// checks if player worns chest item
			L2ItemInstance chestItem = getPaperdollItem(PAPERDOLL_CHEST);
			if (chestItem == null) {
				return;
			}
			// checks if there is armorset for chest item that player worns
			L2ArmorSet armorSet = ArmorSetsTable.getInstance().getSet(chestItem.getItemId());
			if (armorSet == null) {
				return;
			}
			// checks if equiped item is part of set
			if (armorSet.containItem(slot, item.getItemId()))
			{
				if (armorSet.containAll(player))
				{
					L2Skill skill = SkillTable.getInstance().getInfo(armorSet.getSkillId(), 1);
					if (skill != null)
					{
						player.addSkill(skill, false);
						player.sendSkillList();
					} else {
						_log.warning("Inventory.ArmorSetListener: Incorrect skill: " + armorSet.getSkillId() + ".");
					}
					if (armorSet.containShield(player)) // has shield from set
					{
						L2Skill skills = SkillTable.getInstance().getInfo(armorSet.getShieldSkillId(), 1);
						if (skills != null)
						{
							player.addSkill(skills, false);
							player.sendSkillList();
						} else {
							_log.warning("Inventory.ArmorSetListener: Incorrect skill: " + armorSet.getShieldSkillId() + ".");
						}
					}
					if (armorSet.isEnchanted6(player)) // has all parts of set
					// enchanted to 6 or
					// more
					{
						int skillId = armorSet.getEnchant6skillId();
						if (skillId > 0)
						{
							L2Skill skille = SkillTable.getInstance().getInfo(skillId, 1);
							if (skille != null)
							{
								player.addSkill(skille, false);
								player.sendSkillList();
							} else {
								_log.warning("Inventory.ArmorSetListener: Incorrect skill: " + armorSet.getEnchant6skillId() + ".");
							}
						}
					}
				}
			}
			else if (armorSet.containShield(item.getItemId()))
			{
				if (armorSet.containAll(player))
				{
					L2Skill skills = SkillTable.getInstance().getInfo(armorSet.getShieldSkillId(), 1);
					if (skills != null)
					{
						player.addSkill(skills, false);
						player.sendSkillList();
					} else {
						_log.warning("Inventory.ArmorSetListener: Incorrect skill: " + armorSet.getShieldSkillId() + ".");
					}
				}
			}
		}

		public void notifyUnequiped(int slot, L2ItemInstance item)
		{
			if (!(getOwner() instanceof L2PcInstance)) {
				return;
			}
			L2PcInstance player = (L2PcInstance) getOwner();
			boolean remove = false;
			int removeSkillId1 = 0; // set skill
			int removeSkillId2 = 0; // shield skill
			int removeSkillId3 = 0; // enchant +6 skill
			if (slot == PAPERDOLL_CHEST)
			{
				L2ArmorSet armorSet = ArmorSetsTable.getInstance().getSet(item.getItemId());
				if (armorSet == null) {
					return;
				}
				remove = true;
				removeSkillId1 = armorSet.getSkillId();
				removeSkillId2 = armorSet.getShieldSkillId();
				removeSkillId3 = armorSet.getEnchant6skillId();
			}
			else
			{
				L2ItemInstance chestItem = getPaperdollItem(PAPERDOLL_CHEST);
				if (chestItem == null) {
					return;
				}
				L2ArmorSet armorSet = ArmorSetsTable.getInstance().getSet(chestItem.getItemId());
				if (armorSet == null) {
					return;
				}
				if (armorSet.containItem(slot, item.getItemId())) // removed part of set
				{
					remove = true;
					removeSkillId1 = armorSet.getSkillId();
					removeSkillId2 = armorSet.getShieldSkillId();
					removeSkillId3 = armorSet.getEnchant6skillId();
				}
				else if (armorSet.containShield(item.getItemId())) // removed shield
				{
					remove = true;
					removeSkillId2 = armorSet.getShieldSkillId();
				}
			}
			if (remove)
			{
				if (removeSkillId1 != 0)
				{
					L2Skill skill = SkillTable.getInstance().getInfo(removeSkillId1, 1);
					if (skill != null) {
						player.removeSkill(skill);
					} else {
						_log.warning("Inventory.ArmorSetListener: Incorrect skill: " + removeSkillId1 + ".");
					}
				}
				if (removeSkillId2 != 0)
				{
					L2Skill skill = SkillTable.getInstance().getInfo(removeSkillId2, 1);
					if (skill != null) {
						player.removeSkill(skill);
					} else {
						_log.warning("Inventory.ArmorSetListener: Incorrect skill: " + removeSkillId2 + ".");
					}
				}
				if (removeSkillId3 != 0)
				{
					L2Skill skill = SkillTable.getInstance().getInfo(removeSkillId3, 1);
					if (skill != null) {
						player.removeSkill(skill);
					} else {
						_log.warning("Inventory.ArmorSetListener: Incorrect skill: " + removeSkillId3 + ".");
					}
				}
				player.sendSkillList();
			}
		}
	}

	/**
	 * Constructor of the inventory
	 */
	protected Inventory()
	{
		_paperdoll = new L2ItemInstance[0x12];
		_paperdollListeners = new FastList<PaperdollListener>();
		addPaperdollListener(new ArmorSetListener());
		addPaperdollListener(new BowListener());
		addPaperdollListener(new ItemPassiveSkillsListener());
		addPaperdollListener(new StatsListener());
		addPaperdollListener(new FormalWearListener());
	}

	protected abstract ItemLocation getEquipLocation();

	/**
	 * Returns the instance of new ChangeRecorder
	 *
	 * @return ChangeRecorder
	 */
	public ChangeRecorder newRecorder()
	{
		return new ChangeRecorder(this);
	}

	/**
	 * Drop item from inventory and updates database
	 *
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param item
	 *            : L2ItemInstance to be dropped
	 * @param actor
	 *            : L2PcInstance Player requesting the item drop
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling item or previous item in transformation
	 * @return L2ItemInstance corresponding to the destroyed item or the updated item in inventory
	 */
	public L2ItemInstance dropItem(String process, L2ItemInstance item, L2PcInstance actor, L2Object reference)
	{
		synchronized (item)
		{
			if (!_items.contains(item)) {
				return null;
			}
			removeItem(item);
			item.setOwnerId(process, 0, actor, reference);
			item.setLocation(ItemLocation.VOID);
			item.setLastChange(L2ItemInstance.REMOVED);
			item.updateDatabase();
			refreshWeight();
		}
		return item;
	}

	/**
	 * Drop item from inventory by using its <B>objectID</B> and updates database
	 *
	 * @param process
	 *            : String Identifier of process triggering this action
	 * @param objectId
	 *            : int Item Instance identifier of the item to be dropped
	 * @param count
	 *            : int Quantity of items to be dropped
	 * @param actor
	 *            : L2PcInstance Player requesting the item drop
	 * @param reference
	 *            : L2Object Object referencing current action like NPC selling item or previous item in transformation
	 * @return L2ItemInstance corresponding to the destroyed item or the updated item in inventory
	 */
	public L2ItemInstance dropItem(String process, int objectId, int count, L2PcInstance actor, L2Object reference)
	{
		L2ItemInstance item = getItemByObjectId(objectId);
		if (item == null) {
			return null;
		}
		// Adjust item quantity and create new instance to drop
		if (item.getCount() > count)
		{
			item.changeCount(process, -count, actor, reference);
			item.setLastChange(L2ItemInstance.MODIFIED);
			item.updateDatabase();
			item = ItemTable.getInstance().createItem(process, item.getItemId(), count, actor, reference);
			item.updateDatabase();
			refreshWeight();
			return item;
		}
		// Directly drop entire item
 else {
			return dropItem(process, item, actor, reference);
		}
	}

	/**
	 * Adds item to inventory for further adjustments and Equip it if necessary (itemlocation defined)<BR>
	 * <BR>
	 *
	 * @param item
	 *            : L2ItemInstance to be added from inventory
	 */
	@Override
	protected void addItem(L2ItemInstance item)
	{
		super.addItem(item);
		if (item.isEquipped()) {
			equipItem(item);
		}
	}

	/**
	 * Removes item from inventory for further adjustments.
	 *
	 * @param item
	 *            : L2ItemInstance to be removed from inventory
	 */
	@Override
	protected void removeItem(L2ItemInstance item)
	{
		// Unequip item if equiped
		// if (item.isEquipped())
		// unEquipItemInSlotAndRecord(item.getEquipSlot());
		for (int i = 0; i < _paperdoll.length; i++) {
			if (_paperdoll[i] == item) {
				unEquipItemInSlot(i);
			}
		}
		super.removeItem(item);
	}

	/**
	 * Returns the item in the paperdoll slot
	 *
	 * @return L2ItemInstance
	 */
	public L2ItemInstance getPaperdollItem(int slot)
	{
		return _paperdoll[slot];
	}

	/**
	 * Returns the item in the paperdoll L2Item slot
	 *
	 * @param L2Item
	 *            slot identifier
	 * @return L2ItemInstance
	 */
	public L2ItemInstance getPaperdollItemByL2ItemId(int slot)
	{
		switch (slot)
		{
			case 0x01:
				return _paperdoll[0];
			case 0x04:
				return _paperdoll[1];
			case 0x02:
				return _paperdoll[2];
			case 0x08:
				return _paperdoll[3];
			case 0x20:
				return _paperdoll[4];
			case 0x10:
				return _paperdoll[5];
			case 0x40:
				return _paperdoll[6];
			case 0x80:
				return _paperdoll[7];
			case 0x0100:
				return _paperdoll[8];
			case 0x0200:
				return _paperdoll[9];
			case 0x0400:
				return _paperdoll[10];
			case 0x0800:
				return _paperdoll[11];
			case 0x1000:
				return _paperdoll[12];
			case 0x2000:
				return _paperdoll[13];
			case 0x4000:
				return _paperdoll[14];
			case 0x040000:
				return _paperdoll[15];
			case 0x010000:
				return _paperdoll[16];
			case 0x080000:
				return _paperdoll[17];
		}
		return null;
	}

	/**
	 * Returns the ID of the item in the paperdol slot
	 *
	 * @param slot
	 *            : int designating the slot
	 * @return int designating the ID of the item
	 */
	public int getPaperdollItemId(int slot)
	{
		L2ItemInstance item = _paperdoll[slot];
		if (item != null) {
			return item.getItemId();
		} else if (slot == PAPERDOLL_HAIR)
		{
			item = _paperdoll[PAPERDOLL_DHAIR];
			if (item != null) {
				return item.getItemId();
			}
		}
		return 0;
	}

	public int getPaperdollAugmentationId(int slot)
	{
		L2ItemInstance item = _paperdoll[slot];
		if (item != null)
		{
			if (item.getAugmentation() != null) {
				return item.getAugmentation().getAugmentationId();
			} else {
				return 0;
			}
		}
		return 0;
	}

	/**
	 * Returns the objectID associated to the item in the paperdoll slot
	 *
	 * @param slot
	 *            : int pointing out the slot
	 * @return int designating the objectID
	 */
	public int getPaperdollObjectId(int slot)
	{
		L2ItemInstance item = _paperdoll[slot];
		if (item != null) {
			return item.getObjectId();
		} else if (slot == PAPERDOLL_HAIR)
		{
			item = _paperdoll[PAPERDOLL_DHAIR];
			if (item != null) {
				return item.getObjectId();
			}
		}
		return 0;
	}

	/**
	 * Adds new inventory's paperdoll listener
	 *
	 * @param PaperdollListener
	 *            pointing out the listener
	 */
	public synchronized void addPaperdollListener(PaperdollListener listener)
	{
		if (Config.ASSERT) {
			assert !_paperdollListeners.contains(listener);
		}
		_paperdollListeners.add(listener);
	}

	/**
	 * Removes a paperdoll listener
	 *
	 * @param PaperdollListener
	 *            pointing out the listener to be deleted
	 */
	public synchronized void removePaperdollListener(PaperdollListener listener)
	{
		_paperdollListeners.remove(listener);
	}

	/**
	 * Equips an item in the given slot of the paperdoll. <U><I>Remark :</I></U> The item <B>HAS TO BE</B> already in the inventory
	 *
	 * @param slot
	 *            : int pointing out the slot of the paperdoll
	 * @param item
	 *            : L2ItemInstance pointing out the item to add in slot
	 * @return L2ItemInstance designating the item placed in the slot before
	 */
	public L2ItemInstance setPaperdollItem(int slot, L2ItemInstance item)
	{
		L2ItemInstance old = _paperdoll[slot];
		if (old != item)
		{
			if (old != null)
			{
				_paperdoll[slot] = null;
				// Put old item from paperdoll slot to base location
				old.setLocation(getBaseLocation());
				old.setLastChange(L2ItemInstance.MODIFIED);
				// Get the mask for paperdoll
				int mask = 0;
				for (int i = 0; i < PAPERDOLL_LRHAND; i++)
				{
					L2ItemInstance pi = _paperdoll[i];
					if (pi != null) {
						mask |= pi.getItem().getItemMask();
					}
				}
				_wearedMask = mask;
				// Notify all paperdoll listener in order to unequip old item in
				// slot
				for (PaperdollListener listener : _paperdollListeners)
				{
					if (listener == null) {
						continue;
					}
					listener.notifyUnequiped(slot, old);
				}
				old.updateDatabase();
			}
			// Add new item in slot of paperdoll
			if (item != null)
			{
				_paperdoll[slot] = item;
				item.setLocation(getEquipLocation(), slot);
				item.setLastChange(L2ItemInstance.MODIFIED);
				_wearedMask |= item.getItem().getItemMask();
				for (PaperdollListener listener : _paperdollListeners) {
					listener.notifyEquiped(slot, item);
				}
				item.updateDatabase();
			}
		}
		return old;
	}

	/**
	 * Return the mask of weared item
	 *
	 * @return int
	 */
	public int getWearedMask()
	{
		return _wearedMask;
	}

	public int getSlotFromItem(L2ItemInstance item)
	{
		int slot = -1;
		int location = item.getEquipSlot();
		switch (location)
		{
			case PAPERDOLL_UNDER:
				slot = L2Item.SLOT_UNDERWEAR;
				break;
			case PAPERDOLL_LEAR:
				slot = L2Item.SLOT_L_EAR;
				break;
			case PAPERDOLL_REAR:
				slot = L2Item.SLOT_R_EAR;
				break;
			case PAPERDOLL_NECK:
				slot = L2Item.SLOT_NECK;
				break;
			case PAPERDOLL_RFINGER:
				slot = L2Item.SLOT_R_FINGER;
				break;
			case PAPERDOLL_LFINGER:
				slot = L2Item.SLOT_L_FINGER;
				break;
			case PAPERDOLL_HAIR:
				slot = L2Item.SLOT_HAIR;
				break;
			case PAPERDOLL_FACE:
				slot = L2Item.SLOT_FACE;
				break;
			case PAPERDOLL_DHAIR:
				slot = L2Item.SLOT_DHAIR;
				break;
			case PAPERDOLL_HEAD:
				slot = L2Item.SLOT_HEAD;
				break;
			case PAPERDOLL_RHAND:
				slot = L2Item.SLOT_R_HAND;
				break;
			case PAPERDOLL_LHAND:
				slot = L2Item.SLOT_L_HAND;
				break;
			case PAPERDOLL_GLOVES:
				slot = L2Item.SLOT_GLOVES;
				break;
			case PAPERDOLL_CHEST:
				slot = item.getItem().getBodyPart();
				break;// fall through
			case PAPERDOLL_LEGS:
				slot = L2Item.SLOT_LEGS;
				break;
			case PAPERDOLL_BACK:
				slot = L2Item.SLOT_BACK;
				break;
			case PAPERDOLL_FEET:
				slot = L2Item.SLOT_FEET;
				break;
			case PAPERDOLL_LRHAND:
				slot = L2Item.SLOT_LR_HAND;
				break;
		}
		return slot;
	}

	/**
	 * Unequips item in body slot and returns alterations.
	 *
	 * @param slot
	 *            : int designating the slot of the paperdoll
	 * @return L2ItemInstance[] : list of changes
	 */
	public synchronized L2ItemInstance[] unEquipItemInBodySlotAndRecord(int slot)
	{
		Inventory.ChangeRecorder recorder = newRecorder();
		try
		{
			unEquipItemInBodySlot(slot);
			if (getOwner() instanceof L2PcInstance) {
				((L2PcInstance) getOwner()).refreshExpertisePenalty();
			}
		}
		finally
		{
			removePaperdollListener(recorder);
		}
		return recorder.getChangedItems();
	}

	/**
	 * Sets item in slot of the paperdoll to null value
	 *
	 * @param pdollSlot
	 *            : int designating the slot
	 * @return L2ItemInstance designating the item in slot before change
	 */
	public synchronized L2ItemInstance unEquipItemInSlot(int pdollSlot)
	{
		return setPaperdollItem(pdollSlot, null);
	}

	/**
	 * Unepquips item in slot and returns alterations
	 *
	 * @param slot
	 *            : int designating the slot
	 * @return L2ItemInstance[] : list of items altered
	 */
	public synchronized L2ItemInstance[] unEquipItemInSlotAndRecord(int slot)
	{
		Inventory.ChangeRecorder recorder = newRecorder();
		try
		{
			unEquipItemInSlot(slot);
			if (getOwner() instanceof L2PcInstance) {
				((L2PcInstance) getOwner()).refreshExpertisePenalty();
			}
		}
		finally
		{
			removePaperdollListener(recorder);
		}
		return recorder.getChangedItems();
	}

	/**
	 * Unequips item in slot (i.e. equips with default value)
	 *
	 * @param slot
	 *            : int designating the slot
	 */
	private void unEquipItemInBodySlot(int slot)
	{
		if (Config.DEBUG) {
			_log.fine("--- unequip body slot:" + slot);
		}
		int pdollSlot = -1;
		switch (slot)
		{
			case L2Item.SLOT_L_EAR:
				pdollSlot = PAPERDOLL_LEAR;
				break;
			case L2Item.SLOT_R_EAR:
				pdollSlot = PAPERDOLL_REAR;
				break;
			case L2Item.SLOT_NECK:
				pdollSlot = PAPERDOLL_NECK;
				break;
			case L2Item.SLOT_R_FINGER:
				pdollSlot = PAPERDOLL_RFINGER;
				break;
			case L2Item.SLOT_L_FINGER:
				pdollSlot = PAPERDOLL_LFINGER;
				break;
			case L2Item.SLOT_HAIR:
				pdollSlot = PAPERDOLL_HAIR;
				break;
			case L2Item.SLOT_FACE:
				pdollSlot = PAPERDOLL_FACE;
				break;
			case L2Item.SLOT_DHAIR:
				setPaperdollItem(PAPERDOLL_HAIR, null);
				setPaperdollItem(PAPERDOLL_FACE, null);// this should be the
				// same as in DHAIR
				pdollSlot = PAPERDOLL_DHAIR;
				break;
			case L2Item.SLOT_HEAD:
				pdollSlot = PAPERDOLL_HEAD;
				break;
			case L2Item.SLOT_R_HAND:
				pdollSlot = PAPERDOLL_RHAND;
				break;
			case L2Item.SLOT_L_HAND:
				pdollSlot = PAPERDOLL_LHAND;
				break;
			case L2Item.SLOT_GLOVES:
				pdollSlot = PAPERDOLL_GLOVES;
				break;
			case L2Item.SLOT_CHEST: // fall through
			case L2Item.SLOT_FULL_ARMOR:
				pdollSlot = PAPERDOLL_CHEST;
				break;
			case L2Item.SLOT_LEGS:
				pdollSlot = PAPERDOLL_LEGS;
				break;
			case L2Item.SLOT_BACK:
				pdollSlot = PAPERDOLL_BACK;
				break;
			case L2Item.SLOT_FEET:
				pdollSlot = PAPERDOLL_FEET;
				break;
			case L2Item.SLOT_UNDERWEAR:
				pdollSlot = PAPERDOLL_UNDER;
				break;
			case L2Item.SLOT_LR_HAND:
				setPaperdollItem(PAPERDOLL_LHAND, null);
				setPaperdollItem(PAPERDOLL_RHAND, null);// this should be the
				// same as in LRHAND
				pdollSlot = PAPERDOLL_LRHAND;
				break;
		}
		if (pdollSlot >= 0) {
			setPaperdollItem(pdollSlot, null);
		}
	}

	/**
	 * Equips item and returns list of alterations
	 *
	 * @param item
	 *            : L2ItemInstance corresponding to the item
	 * @return L2ItemInstance[] : list of alterations
	 */
	public L2ItemInstance[] equipItemAndRecord(L2ItemInstance item)
	{
		Inventory.ChangeRecorder recorder = newRecorder();
		try
		{
			equipItem(item);
		}
		finally
		{
			removePaperdollListener(recorder);
		}
		return recorder.getChangedItems();
	}

	/**
	 * Equips item in slot of paperdoll.
	 *
	 * @param item
	 *            : L2ItemInstance designating the item and slot used.
	 */
	public synchronized void equipItem(L2ItemInstance item)
	{
		if (getOwner() instanceof L2PcInstance && ((L2PcInstance) getOwner()).getPrivateStoreType() != 0) {
			return;
		}
		if (getOwner() instanceof L2PcInstance)
		{
			L2PcInstance player = (L2PcInstance) getOwner();
			if (Config.STRICT_HERO_SYSTEM && !player.isGM() && !player.isHero())
			{
				if (item.isHeroitem())
				{
					return;
				}
			}
			if (player.getPkKills() > 0 && item.getItemId() >= 7816 && item.getItemId() <= 7831)
			{
				player.sendPacket(new SystemMessage(SystemMessageId.UNABLE_TO_EQUIP_ITEM_WHEN_PK_COUNT_GREATER_OR_EQUAL_THAN_ONE));
				return;
			}
			if (!player.isGM()) {
				if (!player.isHero())
				{
					int itemId = item.getItemId();
					if (itemId >= 6611 && itemId <= 6621 || itemId == 6842)
					{
						return;
					}
				}
			}
		}
		int targetSlot = item.getItem().getBodyPart();
		switch (targetSlot)
		{
			case L2Item.SLOT_LR_HAND:
			{
				if (setPaperdollItem(PAPERDOLL_LHAND, null) != null)
				{
					// exchange 2h for 2h
					setPaperdollItem(PAPERDOLL_RHAND, null);
					setPaperdollItem(PAPERDOLL_LHAND, null);
				}
				else
				{
					setPaperdollItem(PAPERDOLL_RHAND, null);
				}
				setPaperdollItem(PAPERDOLL_RHAND, item);
				setPaperdollItem(PAPERDOLL_LRHAND, item);
				break;
			}
			case L2Item.SLOT_L_HAND:
			{
				if (!(item.getItem() instanceof L2EtcItem) || item.getItem().getItemType() != L2EtcItemType.ARROW)
				{
					L2ItemInstance old1 = setPaperdollItem(PAPERDOLL_LRHAND, null);
					if (old1 != null)
					{
						setPaperdollItem(PAPERDOLL_RHAND, null);
					}
				}
				setPaperdollItem(PAPERDOLL_LHAND, null);
				setPaperdollItem(PAPERDOLL_LHAND, item);
				break;
			}
			case L2Item.SLOT_R_HAND:
			{
				if (_paperdoll[PAPERDOLL_LRHAND] != null)
				{
					setPaperdollItem(PAPERDOLL_LRHAND, null);
					setPaperdollItem(PAPERDOLL_LHAND, null);
					setPaperdollItem(PAPERDOLL_RHAND, null);
				}
				else
				{
					setPaperdollItem(PAPERDOLL_RHAND, null);
				}
				setPaperdollItem(PAPERDOLL_RHAND, item);
				break;
			}
			case L2Item.SLOT_L_EAR:
			case L2Item.SLOT_R_EAR:
			case L2Item.SLOT_L_EAR | L2Item.SLOT_R_EAR:
			{
				if (_paperdoll[PAPERDOLL_LEAR] == null)
				{
					setPaperdollItem(PAPERDOLL_LEAR, item);
				}
				else if (_paperdoll[PAPERDOLL_REAR] == null)
				{
					setPaperdollItem(PAPERDOLL_REAR, item);
				}
				else
				{
					setPaperdollItem(PAPERDOLL_LEAR, null);
					setPaperdollItem(PAPERDOLL_LEAR, item);
				}
				break;
			}
			case L2Item.SLOT_L_FINGER:
			case L2Item.SLOT_R_FINGER:
			case L2Item.SLOT_L_FINGER | L2Item.SLOT_R_FINGER:
			{
				if (_paperdoll[PAPERDOLL_LFINGER] == null)
				{
					setPaperdollItem(PAPERDOLL_LFINGER, item);
				}
				else if (_paperdoll[PAPERDOLL_RFINGER] == null)
				{
					setPaperdollItem(PAPERDOLL_RFINGER, item);
				}
				else
				{
					setPaperdollItem(PAPERDOLL_LFINGER, null);
					setPaperdollItem(PAPERDOLL_LFINGER, item);
				}
				break;
			}
			case L2Item.SLOT_NECK:
				setPaperdollItem(PAPERDOLL_NECK, item);
				break;
			case L2Item.SLOT_FULL_ARMOR:
				setPaperdollItem(PAPERDOLL_CHEST, null);
				setPaperdollItem(PAPERDOLL_LEGS, null);
				setPaperdollItem(PAPERDOLL_CHEST, item);
				break;
			case L2Item.SLOT_CHEST:
				setPaperdollItem(PAPERDOLL_CHEST, item);
				break;
			case L2Item.SLOT_LEGS:
			{
				// handle full armor
				L2ItemInstance chest = getPaperdollItem(PAPERDOLL_CHEST);
				if (chest != null && chest.getItem().getBodyPart() == L2Item.SLOT_FULL_ARMOR)
				{
					setPaperdollItem(PAPERDOLL_CHEST, null);
				}
				setPaperdollItem(PAPERDOLL_LEGS, null);
				setPaperdollItem(PAPERDOLL_LEGS, item);
				break;
			}
			case L2Item.SLOT_FEET:
				setPaperdollItem(PAPERDOLL_FEET, item);
				break;
			case L2Item.SLOT_GLOVES:
				setPaperdollItem(PAPERDOLL_GLOVES, item);
				break;
			case L2Item.SLOT_HEAD:
				setPaperdollItem(PAPERDOLL_HEAD, item);
				break;
			case L2Item.SLOT_HAIR:
				if (setPaperdollItem(PAPERDOLL_DHAIR, null) != null)
				{
					setPaperdollItem(PAPERDOLL_DHAIR, null);
					setPaperdollItem(PAPERDOLL_HAIR, null);
					setPaperdollItem(PAPERDOLL_FACE, null);
				} else {
					setPaperdollItem(PAPERDOLL_HAIR, null);
				}
				setPaperdollItem(PAPERDOLL_HAIR, item);
				break;
			case L2Item.SLOT_FACE:
				if (setPaperdollItem(PAPERDOLL_DHAIR, null) != null)
				{
					setPaperdollItem(PAPERDOLL_DHAIR, null);
					setPaperdollItem(PAPERDOLL_HAIR, null);
					setPaperdollItem(PAPERDOLL_FACE, null);
				} else {
					setPaperdollItem(PAPERDOLL_FACE, null);
				}
				setPaperdollItem(PAPERDOLL_FACE, item);
				break;
			case L2Item.SLOT_DHAIR:
				if (setPaperdollItem(PAPERDOLL_HAIR, null) != null)
				{
					setPaperdollItem(PAPERDOLL_HAIR, null);
					setPaperdollItem(PAPERDOLL_FACE, null);
				}
				else
				{
					setPaperdollItem(PAPERDOLL_FACE, null);
				}
				setPaperdollItem(PAPERDOLL_DHAIR, item);
				break;
			case L2Item.SLOT_UNDERWEAR:
				setPaperdollItem(PAPERDOLL_UNDER, item);
				break;
			case L2Item.SLOT_BACK:
				setPaperdollItem(PAPERDOLL_BACK, item);
				break;
			default:
				_log.warning("unknown body slot:" + targetSlot);
		}
	}

	/**
	 * Refresh the weight of equipment loaded
	 */
	@Override
	protected void refreshWeight()
	{
		int weight = 0;
		for (L2ItemInstance item : _items)
		{
			if (item != null && item.getItem() != null) {
				weight += item.getItem().getWeight() * item.getCount();
			}
		}
		_totalWeight = weight;
	}

	/**
	 * Returns the totalWeight.
	 *
	 * @return int
	 */
	public int getTotalWeight()
	{
		return _totalWeight;
	}

	/**
	 * Return the L2ItemInstance of the arrows needed for this bow.<BR>
	 * <BR>
	 *
	 * @param bow
	 *            : L2Item designating the bow
	 * @return L2ItemInstance pointing out arrows for bow
	 */
	public L2ItemInstance findArrowForBow(L2Item bow)
	{
		int arrowsId = 0;
		switch (bow.getCrystalType())
		{
			default: // broken weapon.csv ??
			case L2Item.CRYSTAL_NONE:
				arrowsId = 17;
				break; // Wooden arrow
			case L2Item.CRYSTAL_D:
				arrowsId = 1341;
				break; // Bone arrow
			case L2Item.CRYSTAL_C:
				arrowsId = 1342;
				break; // Fine steel arrow
			case L2Item.CRYSTAL_B:
				arrowsId = 1343;
				break; // Silver arrow
			case L2Item.CRYSTAL_A:
				arrowsId = 1344;
				break; // Mithril arrow
			case L2Item.CRYSTAL_S:
				arrowsId = 1345;
				break; // Shining arrow
		}
		// Get the L2ItemInstance corresponding to the item identifier and
		// return it
		return getItemByItemId(arrowsId);
	}

	/**
	 * Get back items in inventory from database
	 */
	@Override
	public void restore()
	{
		java.sql.Connection con = null;
		try
		{
			con = L2DatabaseFactory.getInstance().getConnection();
			PreparedStatement statement = con.prepareStatement("SELECT object_id FROM items WHERE owner_id=? AND (loc=? OR loc=?) " + "ORDER BY object_id DESC");
			statement.setInt(1, getOwner().getObjectId());
			statement.setString(2, getBaseLocation().name());
			statement.setString(3, getEquipLocation().name());
			ResultSet inv = statement.executeQuery();
			L2ItemInstance item;
			while (inv.next())
			{
				int objectId = inv.getInt(1);
				item = L2ItemInstance.restoreFromDb(objectId);
				if (item == null) {
					continue;
				}
				if (getOwner() instanceof L2PcInstance)
				{
					L2PcInstance player = (L2PcInstance) getOwner();
					if (player.getPkKills() > 0 && item.getItemId() >= 7816 && item.getItemId() <= 7831)
					{
						item.setLocation(ItemLocation.INVENTORY);
					}
					if (!player.isGM()) {
						if (Config.STRICT_HERO_SYSTEM)
						{
							if (!player.isHero())
							{
								int itemId = item.getItemId();
								if (itemId >= 6611 && itemId <= 6621 || itemId == 6842) {
									item.setLocation(ItemLocation.INVENTORY);
								}
							}
						}
					}
				}
				L2World.getInstance().storeObject(item);
				// If stackable item is found in inventory just add to current
				// quantity
				if (item.isStackable() && getItemByItemId(item.getItemId()) != null) {
					addItem("Restore", item, null, getOwner());
				} else {
					addItem(item);
				}
			}
			inv.close();
			statement.close();
			refreshWeight();
		}
		catch (Exception e)
		{
			_log.warning("Could not restore inventory : " + e);
		}
		finally
		{
			try
			{
				con.close();
			}
			catch (Exception e)
			{
			}
		}
	}

	/**
	 * Re-notify to paperdoll listeners every equipped item
	 */
	public void reloadEquippedItems()
	{
		L2ItemInstance item;
		int slot;
		for (L2ItemInstance element : _paperdoll) {
			item = element;
			if (item == null) {
				continue;
			}
			slot = item.getEquipSlot();
			for (PaperdollListener listener : _paperdollListeners)
			{
				if (listener == null) {
					continue;
				}
				listener.notifyUnequiped(slot, item);
				listener.notifyEquiped(slot, item);
			}
		}
	}
}
