/*
 * 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 silentium.gameserver.model;

import java.util.concurrent.ScheduledFuture;

import silentium.gameserver.ThreadPoolManager;
import silentium.gameserver.model.actor.instance.L2PcInstance;
import silentium.gameserver.model.actor.instance.L2PetInstance;

/**
 * @author DrHouse
 */
public class DropProtection implements Runnable
{
	private volatile boolean _isProtected = false;
	private L2PcInstance _owner = null;
	private ScheduledFuture<?> _task = null;

	private static final long PROTECTED_MILLIS_TIME = 15000;

	@Override
	public synchronized void run()
	{
		_isProtected = false;
		_owner = null;
		_task = null;
	}

	public boolean isProtected()
	{
		return _isProtected;
	}

	public L2PcInstance getOwner()
	{
		return _owner;
	}

	public synchronized boolean tryPickUp(L2PcInstance actor)
	{
		if (!_isProtected)
			return true;

		if (_owner == actor)
			return true;

		if (_owner.getParty() != null && _owner.getParty() == actor.getParty())
			return true;

		return false;
	}

	public boolean tryPickUp(L2PetInstance pet)
	{
		return tryPickUp(pet.getOwner());
	}

	public synchronized void unprotect()
	{
		if (_task != null)
			_task.cancel(false);

		_isProtected = false;
		_owner = null;
		_task = null;
	}

	public synchronized void protect(L2PcInstance player)
	{
		unprotect();

		_isProtected = true;

		if ((_owner = player) == null)
			throw new NullPointerException("Trying to protect dropped item to null owner");

		_task = ThreadPoolManager.getInstance().scheduleGeneral(this, PROTECTED_MILLIS_TIME);
	}
}