/*
 * 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.instancemanager;

import java.util.Map;
import java.util.logging.Logger;

import javolution.util.FastMap;
import net.sf.l2j.Config;
import net.sf.l2j.gameserver.GameTimeController;
import net.sf.l2j.gameserver.model.L2Spawn;
import net.sf.l2j.gameserver.model.actor.instance.L2NpcInstance;
import net.sf.l2j.gameserver.model.actor.instance.L2RaidBossInstance;

/**
 * This class ...
 *
 * @version $Revision: $ $Date: $
 * @author  godson
 */

public class DayNightSpawnManager {

    private static Logger _log = Logger.getLogger(DayNightSpawnManager.class.getName());

    private static DayNightSpawnManager _instance;
    private static Map<L2Spawn, L2NpcInstance> _dayCreatures;
    private static Map<L2Spawn, L2NpcInstance> _nightCreatures;
    private static Map<L2Spawn, L2RaidBossInstance> _bosses;

    //private static int _currentState;  // 0 = Day, 1 = Night

    public static DayNightSpawnManager getInstance()
    {
        if (_instance == null)
            _instance = new DayNightSpawnManager();
        return _instance;
    }

    private DayNightSpawnManager()
    {
        _dayCreatures = new FastMap<L2Spawn, L2NpcInstance>();
        _nightCreatures = new FastMap<L2Spawn, L2NpcInstance>();
        _bosses = new FastMap<L2Spawn, L2RaidBossInstance>();
        
        _log.info("DayNightSpawnManager: Day/Night handler initialized");
    }

    public void addDayCreature(L2Spawn spawnDat)
    {
        if (_dayCreatures.containsKey(spawnDat))
        {
            _log.warning("DayNightSpawnManager: Spawn already added into day map");
            return;
        }
        else
            _dayCreatures.put(spawnDat, null);
    }

    public void addNightCreature(L2Spawn spawnDat)
    {
        if (_nightCreatures.containsKey(spawnDat))
        {
            _log.warning("DayNightSpawnManager: Spawn already added into night map");
            return;
        }
        else
            _nightCreatures.put(spawnDat, null);
    }
    /*
     * Spawn Day Creatures, and Unspawn Night Creatures
     */
    public void spawnDayCreatures(){
    	spawnCreatures(_nightCreatures,_dayCreatures, "night", "day");
	}
    /*
     * Spawn Night Creatures, and Unspawn Day Creatures
     */
    public void spawnNightCreatures(){
    	spawnCreatures(_dayCreatures,_nightCreatures, "day", "night");
	}
    /*
     * Manage Spawn/Respawn
     * Arg 1 : Map with L2NpcInstance must be unspawned
     * Arg 2 : Map with L2NpcInstance must be spawned
     * Arg 3 : String for log info for unspawned L2NpcInstance
     * Arg 4 : String for log info for spawned L2NpcInstance
     */
    private void spawnCreatures(Map<L2Spawn, L2NpcInstance> UnSpawnCreatures,Map<L2Spawn, L2NpcInstance> SpawnCreatures, String UnspawnLogInfo, String SpawnLogInfo){
        try
        {
            if (UnSpawnCreatures.size() != 0)
            {
                int i = 0;
                for (L2NpcInstance dayCreature : UnSpawnCreatures.values())
                {
                    if (dayCreature == null) continue;

                    dayCreature.getSpawn().stopRespawn();
                    dayCreature.deleteMe();
                    i++;
                }
                if (Config.DEBUG)
                	_log.info("DayNightSpawnManager: Deleted " + i + " "+UnspawnLogInfo+" creatures");
            }

            int i = 0;
            L2NpcInstance creature = null;
            for (L2Spawn spawnDat : SpawnCreatures.keySet())
            {
                if (SpawnCreatures.get(spawnDat) == null)
                {
                    creature = spawnDat.doSpawn();
                    if (creature == null) continue;

                    SpawnCreatures.remove(spawnDat);
                    SpawnCreatures.put(spawnDat, creature);
                    creature.setCurrentHp(creature.getMaxHp());
                    creature.setCurrentMp(creature.getMaxMp());
                    creature.getSpawn().startRespawn();
                    if (creature.isDecayed())
                        creature.setDecayed(false);
                    if (creature.isDead())
                        creature.doRevive();
                }
                else
                {
                    creature = SpawnCreatures.get(spawnDat);
                    if (creature == null) continue;

                    creature.getSpawn().startRespawn();
                    if (creature.isDecayed())
                        creature.setDecayed(false);
                    if (creature.isDead())
                        creature.doRevive();
                    creature.setCurrentHp(creature.getMaxHp());
                    creature.setCurrentMp(creature.getMaxMp());
                    creature.spawnMe();
                }

                i++;
            }

            if (Config.DEBUG)
            	_log.info("DayNightSpawnManager: Spawning " + i + " "+SpawnLogInfo+" creatures");
        }catch(Exception e){e.printStackTrace();}
    }
    private void changeMode(int mode)
    {
        if (_nightCreatures.size() == 0 && _dayCreatures.size() == 0)
            return;

        switch(mode) {
            case 0:
                spawnDayCreatures();
                specialNightBoss(0);
                break;
            case 1:
                spawnNightCreatures();
                specialNightBoss(1);
                break;
                default:
                    _log.warning("DayNightSpawnManager: Wrong mode sent");
                break;
        }
    }

    public void notifyChangeMode()
    {
        try{
            if (GameTimeController.getInstance().isNowNight())
                changeMode(1);
            else
                changeMode(0);
        }catch(Exception e){e.printStackTrace();}
    }

    public void cleanUp()
    {
        _nightCreatures.clear();
        _dayCreatures.clear();
        _bosses.clear();
    }

    private void specialNightBoss(int mode)
    {
        try{
        for (L2Spawn spawn : _bosses.keySet())
        {
            L2RaidBossInstance boss = _bosses.get(spawn);

            if (boss == null && mode == 1)
            {
                boss = (L2RaidBossInstance)spawn.doSpawn();
                RaidBossSpawnManager.getInstance().notifySpawnNightBoss(boss);
                _bosses.remove(spawn);
                _bosses.put(spawn, boss);
                continue;
            }

            if (boss == null && mode == 0)
                continue;

            if(boss.getNpcId() == 25328 &&
                    boss.getRaidStatus().equals(RaidBossSpawnManager.StatusEnum.ALIVE))
                handleHellmans(boss, mode);
            return;
        }
        }catch(Exception e){e.printStackTrace();}
    }

    private void handleHellmans(L2RaidBossInstance boss, int mode)
    {
        switch(mode)
        {
            case 0:
                boss.deleteMe();
                _log.info("DayNightSpawnManager: Deleting Hellman raidboss");
                break;
            case 1:
                boss.spawnMe();
                _log.info("DayNightSpawnManager: Spawning Hellman raidboss");
                break;
        }
    }

    public L2RaidBossInstance handleBoss(L2Spawn spawnDat)
    {
        if(_bosses.containsKey(spawnDat)) return _bosses.get(spawnDat);

        if (GameTimeController.getInstance().isNowNight())
        {
            L2RaidBossInstance raidboss = (L2RaidBossInstance)spawnDat.doSpawn();
            _bosses.put(spawnDat, raidboss);

            return raidboss;
        }
        else
            _bosses.put(spawnDat, null);

       return null;
    }
}