/*
 * 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 net.sf.l2j.gameserver.handler.ISkillHandler;
import net.sf.l2j.gameserver.handler.SkillHandler;
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.L2Summon;
import net.sf.l2j.gameserver.model.L2Skill.SkillType;
import net.sf.l2j.gameserver.model.actor.instance.L2DoorInstance;
import net.sf.l2j.gameserver.model.actor.instance.L2NpcInstance;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.model.actor.instance.L2SiegeFlagInstance;
import net.sf.l2j.gameserver.network.SystemMessageId;
import net.sf.l2j.gameserver.network.serverpackets.StatusUpdate;
import net.sf.l2j.gameserver.network.serverpackets.SystemMessage;
import net.sf.l2j.gameserver.skills.Stats;
/**
 * This class ...
 *
 * @version $Revision: 1.1.2.2.2.4 $ $Date: 2005/04/06 16:13:48 $
 */

public class Heal implements ISkillHandler
{
	// all the items ids that this handler knowns
	//private static Logger _log = Logger.getLogger(Heal.class.getName());

	/* (non-Javadoc)
	 * @see net.sf.l2j.gameserver.handler.IItemHandler#useItem(net.sf.l2j.gameserver.model.L2PcInstance, net.sf.l2j.gameserver.model.L2ItemInstance)
	 */
	private static final SkillType[] SKILL_IDS = {SkillType.HEAL, SkillType.HEAL_PERCENT, SkillType.HEAL_STATIC};

	/* (non-Javadoc)
	 * @see net.sf.l2j.gameserver.handler.IItemHandler#useItem(net.sf.l2j.gameserver.model.L2PcInstance, net.sf.l2j.gameserver.model.L2ItemInstance)
	 */
	public void useSkill(L2Character activeChar, L2Skill skill, L2Object[] targets)
	{
//		L2Character activeChar = activeChar;
		//check for other effects
	    try {
	        ISkillHandler handler = SkillHandler.getInstance().getSkillHandler(SkillType.BUFF);

            if (handler != null)
                handler.useSkill(activeChar, skill, targets);
	    }
        catch (Exception e) {}

        L2Character target = null;
		L2ItemInstance weaponInst = activeChar.getActiveWeaponInstance();

		L2PcInstance player = null;
		if (activeChar instanceof L2PcInstance)
			player = (L2PcInstance)activeChar;

        for (int index = 0; index < targets.length; index++)
        {
            target = (L2Character)targets[index];

            // We should not heal if char is dead
            if (target == null || target.isDead())
                continue;

            // Player holding a cursed weapon can't be healed and can't heal
            if (target != activeChar)
            {
            	if (target instanceof L2PcInstance && ((L2PcInstance)target).isCursedWeaponEquipped())
            		continue;
            	else if (player != null && player.isCursedWeaponEquipped())
            		continue;
            }

			double hp = skill.getPower();

            if (skill.getSkillType() == SkillType.HEAL_PERCENT)
            {
                hp = target.getMaxHp() * hp / 100.0;
            }
            else
            {
                //Added effect of SpS and Bsps
                if (weaponInst != null)
                {
                    if (weaponInst.getChargedSpiritshot() == L2ItemInstance.CHARGED_BLESSED_SPIRITSHOT)
                    {
                        hp *= 1.5;
                        weaponInst.setChargedSpiritshot(L2ItemInstance.CHARGED_NONE);
                    }
                    else if (weaponInst.getChargedSpiritshot() == L2ItemInstance.CHARGED_SPIRITSHOT)
                    {
                        hp *= 1.3;
                        weaponInst.setChargedSpiritshot(L2ItemInstance.CHARGED_NONE);
                    }
                }
                // If there is no weapon equipped, check for an active summon.
                else if (activeChar instanceof L2Summon)
                {
                    L2Summon activeSummon = (L2Summon)activeChar;

                    if (activeSummon.getChargedSpiritShot() == L2ItemInstance.CHARGED_BLESSED_SPIRITSHOT)
                    {
                        hp *= 1.5;
                        activeSummon.setChargedSpiritShot(L2ItemInstance.CHARGED_NONE);
                    }
                    else if (activeSummon.getChargedSpiritShot() == L2ItemInstance.CHARGED_SPIRITSHOT)
                    {
                        hp *= 1.3;
                        activeSummon.setChargedSpiritShot(L2ItemInstance.CHARGED_NONE);
                    }
                }
                else if (activeChar instanceof L2NpcInstance)
                {
                	if(((L2NpcInstance)activeChar).isUsingShot(false)) hp *= 1.5;
                }
            }

			//int cLev = activeChar.getLevel();
			//hp += skill.getPower()/*+(Math.sqrt(cLev)*cLev)+cLev*/;
            if (skill.getSkillType() == SkillType.HEAL_STATIC)
            	hp = skill.getPower();
            else if (skill.getSkillType() != SkillType.HEAL_PERCENT)
				hp *= target.calcStat(Stats.HEAL_EFFECTIVNESS, 100, null, null) / 100;
            
            // Healer proficiency (since CT1)
            hp *= activeChar.calcStat(Stats.HEAL_PROFICIENCY, 100, null, null) / 100;
            // Extra bonus (since CT1.5)
            if (!skill.isPotion())
            	hp += target.calcStat(Stats.HEAL_STATIC_BONUS, 0, null, null);

            if (target instanceof L2DoorInstance || target instanceof L2SiegeFlagInstance)
            	hp = 0;

            //from CT2 u will receive exact HP, u can't go over it, if u have full HP and u get HP buff, u will receive 0HP restored message
            if (target.getCurrentHp()+hp >= target.getMaxHp())
            	hp = (target.getMaxHp()-(target.getCurrentHp()+hp));
            if (hp <0)
            	hp = 0; 
			target.setCurrentHp(hp + target.getCurrentHp());
			target.setLastHealAmount((int) hp);
			StatusUpdate su = new StatusUpdate(target.getObjectId());
			su.addAttribute(StatusUpdate.CUR_HP, (int)target.getCurrentHp());
			target.sendPacket(su);

			if (target instanceof L2PcInstance)
			{
                if (skill.getId() == 4051)
                {
                    SystemMessage sm = new SystemMessage(SystemMessageId.REJUVENATING_HP);
                    target.sendPacket(sm);
                }
                else
                {
                    if (activeChar instanceof L2PcInstance && activeChar != target)
                    {
                        SystemMessage sm = new SystemMessage(SystemMessageId.S2_HP_RESTORED_BY_S1);
                        sm.addString(activeChar.getName());
                        sm.addNumber((int)hp);
                        target.sendPacket(sm);
                    }
                    else
                    {
                        SystemMessage sm = new SystemMessage(SystemMessageId.S1_HP_RESTORED);
                        sm.addNumber((int)hp);
                        target.sendPacket(sm);
                    }
                }
			}
		}

	}


	public SkillType[] getSkillIds()
	{
		return SKILL_IDS;
	}
}