/*
 * This file is part of the L2J Mobius project.
 * 
 * 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 handlers.effecthandlers;

import com.l2jmobius.gameserver.enums.StatModifierType;
import com.l2jmobius.gameserver.model.StatsSet;
import com.l2jmobius.gameserver.model.actor.L2Character;
import com.l2jmobius.gameserver.model.effects.AbstractEffect;
import com.l2jmobius.gameserver.model.items.instance.L2ItemInstance;
import com.l2jmobius.gameserver.model.skills.Skill;
import com.l2jmobius.gameserver.network.SystemMessageId;
import com.l2jmobius.gameserver.network.serverpackets.SystemMessage;

/**
 * CP change effect. It is mostly used for potions and static damage.
 * @author Nik
 */
public final class Cp extends AbstractEffect
{
	private final int _amount;
	private final StatModifierType _mode;
	
	public Cp(StatsSet params)
	{
		_amount = params.getInt("amount", 0);
		_mode = params.getEnum("mode", StatModifierType.class, StatModifierType.DIFF);
	}
	
	@Override
	public boolean isInstant()
	{
		return true;
	}
	
	@Override
	public void instant(L2Character effector, L2Character effected, Skill skill, L2ItemInstance item)
	{
		if (effected.isDead() || effected.isDoor() || effected.isHpBlocked())
		{
			return;
		}
		
		double amount = 0;
		switch (_mode)
		{
			case DIFF:
			{
				amount = Math.min(_amount, effected.getMaxRecoverableCp() - effected.getCurrentCp());
				break;
			}
			case PER:
			{
				amount = Math.min((effected.getCurrentCp() * _amount) / 100.0, effected.getMaxRecoverableCp() - effected.getCurrentCp());
				break;
			}
		}
		
		if (amount != 0)
		{
			final double newCp = amount + effected.getCurrentCp();
			effected.setCurrentCp(newCp, false);
			effected.broadcastStatusUpdate(effector);
		}
		
		if (amount >= 0)
		{
			if ((effector != null) && (effector != effected))
			{
				final SystemMessage sm = SystemMessage.getSystemMessage(SystemMessageId.S2_CP_HAS_BEEN_RESTORED_BY_C1);
				sm.addCharName(effector);
				sm.addInt((int) amount);
				effected.sendPacket(sm);
			}
			else
			{
				final SystemMessage sm = SystemMessage.getSystemMessage(SystemMessageId.S1_CP_HAS_BEEN_RESTORED);
				sm.addInt((int) amount);
				effected.sendPacket(sm);
			}
		}
	}
}