/*
 * This file is part of aion-unique <aion-unique.org>.
 *
 *  aion-unique 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.
 *
 *  aion-unique 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 aion-unique.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.aionemu.gameserver.model.gameobjects.stats;

import java.util.concurrent.Future;
import java.util.concurrent.locks.ReentrantLock;

import com.aionemu.gameserver.model.gameobjects.player.Player;
import com.aionemu.gameserver.model.gameobjects.state.CreatureState;
import com.aionemu.gameserver.model.group.GroupEvent;
import com.aionemu.gameserver.network.aion.serverpackets.SM_FLY_TIME;
import com.aionemu.gameserver.network.aion.serverpackets.SM_STATUPDATE_HP;
import com.aionemu.gameserver.network.aion.serverpackets.SM_STATUPDATE_MP;
import com.aionemu.gameserver.services.LifeStatsRestoreService;
import com.aionemu.gameserver.taskmanager.tasks.PacketBroadcaster.BroadcastMode;
import com.aionemu.gameserver.utils.PacketSendUtility;

/**
 * @author ATracer, sphinx
 *
 */
public class PlayerLifeStats extends CreatureLifeStats<Player>
{
	protected int currentFp;
	private final ReentrantLock fpLock = new ReentrantLock();
	
	private Future<?> flyRestoreTask;
	private Future<?> flyReduceTask;
	
	public PlayerLifeStats(Player owner, int currentHp, int currentMp)
	{
		super(owner,currentHp,currentMp);
		this.currentFp = owner.getGameStats().getCurrentStat(StatEnum.FLY_TIME);
	}

	@Override
	protected void onReduceHp()
	{
		sendHpPacketUpdate();
		triggerHpMpRestoreTask();
		sendGroupPacketUpdate();	
	}

	@Override
	protected void onReduceMp()
	{
		sendMpPacketUpdate();		
		triggerHpMpRestoreTask();
		sendGroupPacketUpdate();
	}
	
	@Override
	protected void onIncreaseMp()
	{
		sendMpPacketUpdate();
		sendGroupPacketUpdate();
	}	
	
	@Override
	protected void onIncreaseHp()
	{
		sendHpPacketUpdate();
		sendAttackStatusPacketUpdate();
		sendGroupPacketUpdate();
	}
	
	private void sendGroupPacketUpdate()
	{
		Player owner = getOwner();
		if(owner.getPlayerGroup() != null)
		{
			owner.getPlayerGroup().updateGroupUIToEvent(owner, GroupEvent.UNK);
		}
	}

	@Override
	public Player getOwner()
	{
		return (Player) super.getOwner();
	}

	@Override
	public void restoreHp()
	{
		int currentRegenHp = getOwner().getGameStats().getCurrentStat(StatEnum.REGEN_HP);
		if(getOwner().isInState(CreatureState.RESTING))
			currentRegenHp *= 8;
		increaseHp(currentRegenHp);
	}

	@Override
	public void restoreMp()
	{
		int currentRegenMp = getOwner().getGameStats().getCurrentStat(StatEnum.REGEN_MP);
		if(getOwner().isInState(CreatureState.RESTING))
			currentRegenMp *= 8;
		increaseMp(currentRegenMp);
	}	

	@Override
	public void synchronizeWithMaxStats()
	{
		if(isAlreadyDead())
			return;
		
		super.synchronizeWithMaxStats();
		int maxFp = getMaxFp();
		if(currentFp != maxFp)
			currentFp = maxFp;
	}
	
	@Override
	public void updateCurrentStats()
	{
		super.updateCurrentStats();
		
		if(getMaxFp() < currentFp)
			currentFp = getMaxFp();

		if(!owner.isInState(CreatureState.FLYING))
			triggerFpRestore();
	}
	
	public void sendHpPacketUpdate()
	{
		owner.addPacketBroadcastMask(BroadcastMode.UPDATE_PLAYER_HP_STAT);
	}
	
	public void sendHpPacketUpdateImpl()
	{
		if(owner == null)
			return;
		
		PacketSendUtility.sendPacket((Player) owner, new SM_STATUPDATE_HP(currentHp, getMaxHp()));
	}
	
	public void sendMpPacketUpdate()
	{
		owner.addPacketBroadcastMask(BroadcastMode.UPDATE_PLAYER_MP_STAT);
	}
	
	public void sendMpPacketUpdateImpl()
	{
		if(owner == null)
			return;

		PacketSendUtility.sendPacket((Player) owner, new SM_STATUPDATE_MP(currentMp, getMaxMp()));
	}
	
	/**
	 * 
	 * @return the currentFp
	 */
	public int getCurrentFp()
	{
		return this.currentFp;
	}
	
	/**
	 * 
	 * @return maxFp of creature according to stats
	 */
	public int getMaxFp()
	{
		return owner.getGameStats().getCurrentStat(StatEnum.FLY_TIME);
	}
	
	/**	 
	 * @return FP percentage 0 - 100
	 */
	public int getFpPercentage()
	{
		return 100 * currentFp / getMaxFp();
	}
	
	/**
	 * This method is called whenever caller wants to restore creatures's FP
	 * @param value
	 * @return
	 */
	public int increaseFp(int value)
	{
		if(value == getMaxFp())
			return 0;

		fpLock.lock();

		try
		{
			if(isAlreadyDead())
			{
				return 0;
			}
			int newFp = this.currentFp + value;
			if(newFp > getMaxFp())
			{
				newFp = getMaxFp();
			}
			this.currentFp = newFp;
		}
		finally
		{
			fpLock.unlock();
		}

		onIncreaseFp();

		return currentFp;

	}
	
	/**
	 * This method is called whenever caller wants to reduce creatures's MP
	 * 
	 * @param value
	 * @return
	 */
	public int reduceFp(int value)
	{
		fpLock.lock();
		try
		{
			int newFp = this.currentFp - value;

			if(newFp < 0)
				newFp = 0;

			this.currentFp = newFp;	
		}
		finally
		{
			fpLock.unlock();
		}
		
		onReduceFp();

		return currentFp;
	}
	
	protected void onIncreaseFp()
	{
		owner.addPacketBroadcastMask(BroadcastMode.UPDATE_PLAYER_FLY_TIME);
	}
	
	protected void onReduceFp()
	{
		owner.addPacketBroadcastMask(BroadcastMode.UPDATE_PLAYER_FLY_TIME);
	}	
	
	public void sendFpPacketUpdateImpl()
	{
		if(owner == null)
			return;
		
		PacketSendUtility.sendPacket((Player) owner, new SM_FLY_TIME(currentFp, getMaxFp()));
	}
	
	/**
	 * this method should be used only on FlyTimeRestoreService
	 */
	public void restoreFp()
	{
		//how much fly time restoring per 2 second.
		increaseFp(1);
	}
	
	public void triggerFpRestore()
	{
		cancelFpReduce();
		
		if(flyRestoreTask == null && !alreadyDead && !isFlyTimeFullyRestored())
		{
			this.flyRestoreTask = LifeStatsRestoreService.getInstance().scheduleFpRestoreTask(this);
		}
	}
	
	public void cancelFpRestore()
	{
		if(flyRestoreTask != null && !flyRestoreTask.isCancelled())
		{
			flyRestoreTask.cancel(false);
			this.flyRestoreTask = null;
		}
	}
	
	public void triggerFpReduce()
	{
		cancelFpRestore();
		
		if(flyReduceTask == null && !alreadyDead)
		{
			this.flyReduceTask = LifeStatsRestoreService.getInstance().scheduleFpReduceTask(this);
		}
	}
	
	public void cancelFpReduce()
	{
		if(flyReduceTask != null && !flyReduceTask.isCancelled())
		{
			flyReduceTask.cancel(false);
			this.flyReduceTask = null;
		}
	}
	
	public boolean isFlyTimeFullyRestored()
	{
		return getMaxFp() == currentFp;
	}

	@Override
	public void cancelAllTasks()
	{
		super.cancelAllTasks();
		cancelFpReduce();
		cancelFpRestore();
	}

	@Override
	public void triggerRestoreOnRevive()
	{
		super.triggerRestoreOnRevive();
		triggerFpRestore();
	}

}