/*
 * 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 net.sf.l2j.gameserver.handler.skillhandlers;

import java.util.logging.Logger;

import net.sf.l2j.Config;
import net.sf.l2j.gameserver.handler.ISkillHandler;
import net.sf.l2j.gameserver.model.L2Attackable;
import net.sf.l2j.gameserver.model.L2Character;
import net.sf.l2j.gameserver.model.L2ItemInstance;
import net.sf.l2j.gameserver.model.L2Object;
import net.sf.l2j.gameserver.model.L2Skill;
import net.sf.l2j.gameserver.model.actor.instance.L2MonsterInstance;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.network.SystemMessageId;
import net.sf.l2j.gameserver.network.serverpackets.InventoryUpdate;
import net.sf.l2j.gameserver.network.serverpackets.ItemList;
import net.sf.l2j.gameserver.network.serverpackets.SystemMessage;
import net.sf.l2j.gameserver.templates.skills.L2SkillType;
import net.sf.l2j.util.Rnd;

/**
 * @author  l3x
 */
public class Harvest implements ISkillHandler
{
	private static Logger _log = Logger.getLogger(Harvest.class.getName());
	
	private static final L2SkillType[] SKILL_IDS =
	{
		L2SkillType.HARVEST
	};
	
	private L2PcInstance _activeChar;
	private L2MonsterInstance _target;
	
	/**
	 * 
	 * @see net.sf.l2j.gameserver.handler.ISkillHandler#useSkill(net.sf.l2j.gameserver.model.L2Character, net.sf.l2j.gameserver.model.L2Skill, net.sf.l2j.gameserver.model.L2Object[])
	 */
	public void useSkill(L2Character activeChar, L2Skill skill, L2Object[] targets)
	{
		if (!(activeChar instanceof L2PcInstance))
			return;
		
		_activeChar = (L2PcInstance) activeChar;
		
		L2Object[] targetList = skill.getTargetList(activeChar);
		
		InventoryUpdate iu = Config.FORCE_INVENTORY_UPDATE ? null : new InventoryUpdate();
		
		if (targetList == null)
		{
			return;
		}
		
		if (Config.DEBUG)
		{
			_log.info("Casting harvest");
		}
		
		for (L2Object tgt: targetList)
		{
			if (!(tgt instanceof L2MonsterInstance))
				continue;
			
			_target = (L2MonsterInstance) tgt;
			
			if (_activeChar != _target.getSeeder())
			{
				SystemMessage sm = new SystemMessage(SystemMessageId.YOU_ARE_NOT_AUTHORIZED_TO_HARVEST);
				_activeChar.sendPacket(sm);
				continue;
			}
			
			boolean send = false;
			int total = 0;
			int cropId = 0;
			
			// TODO: check items and amount of items player harvest
			if (_target.isSeeded())
			{
				if (calcSuccess())
				{
					L2Attackable.RewardItem[] items = _target.takeHarvest();
					if (items != null && items.length > 0)
					{
						for (L2Attackable.RewardItem ritem : items)
						{
							cropId = ritem.getItemId(); // always got 1 type of crop as reward
							if (_activeChar.isInParty())
								_activeChar.getParty().distributeItem(_activeChar, ritem, true, _target);
							else
							{
								L2ItemInstance item = _activeChar.getInventory().addItem("Manor", ritem.getItemId(), ritem.getCount(), _activeChar, _target);
								if (iu != null)
									iu.addItem(item);
								send = true;
								total += ritem.getCount();
							}
						}
						if (send)
						{
							SystemMessage smsg = new SystemMessage(SystemMessageId.YOU_PICKED_UP_S1_S2);
							smsg.addNumber(total);
							smsg.addItemName(cropId);
							_activeChar.sendPacket(smsg);
							if (_activeChar.getParty() != null)
							{
								smsg = new SystemMessage(SystemMessageId.S1_HARVESTED_S3_S2S);
								smsg.addString(_activeChar.getName());
								smsg.addNumber(total);
								smsg.addItemName(cropId);
								_activeChar.getParty().broadcastToPartyMembers(_activeChar, smsg);
							}
							
							if (iu != null)
								_activeChar.sendPacket(iu);
							else
								_activeChar.sendPacket(new ItemList(_activeChar, false));
						}
					}
				}
				else
				{
					_activeChar.sendPacket(new SystemMessage(SystemMessageId.THE_HARVEST_HAS_FAILED));
				}
			}
			else
			{
				_activeChar.sendPacket(new SystemMessage(SystemMessageId.THE_HARVEST_FAILED_BECAUSE_THE_SEED_WAS_NOT_SOWN));
			}
		}
		
	}
	
	/**
	 * 
	 * @return
	 */
	private boolean calcSuccess()
	{
		int basicSuccess = 100;
		int levelPlayer = _activeChar.getLevel();
		int levelTarget = _target.getLevel();
		
		int diff = (levelPlayer - levelTarget);
		if (diff < 0)
			diff = -diff;
		
		// apply penalty, target <=> player levels
		// 5% penalty for each level
		if (diff > 5)
		{
			basicSuccess -= (diff - 5) * 5;
		}
		
		// success rate cant be less than 1%
		if (basicSuccess < 1)
			basicSuccess = 1;
		
		int rate = Rnd.nextInt(99);
		
		if (rate < basicSuccess)
			return true;
		return false;
	}
	
	/**
	 * 
	 * @see net.sf.l2j.gameserver.handler.ISkillHandler#getSkillIds()
	 */
	public L2SkillType[] getSkillIds()
	{
		return SKILL_IDS;
	}
}
