/*
 * 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.model.entity;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.Calendar;
import java.util.Collection;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

import javolution.util.FastList;
import net.sf.l2j.L2DatabaseFactory;
import net.sf.l2j.gameserver.Announcements;
import net.sf.l2j.gameserver.ThreadPoolManager;
import net.sf.l2j.gameserver.datatables.ClanTable;
import net.sf.l2j.gameserver.datatables.MapRegionTable;
import net.sf.l2j.gameserver.datatables.NpcTable;
import net.sf.l2j.gameserver.idfactory.IdFactory;
import net.sf.l2j.gameserver.instancemanager.FortSiegeGuardManager;
import net.sf.l2j.gameserver.instancemanager.FortSiegeManager;
import net.sf.l2j.gameserver.instancemanager.MercTicketManager;
import net.sf.l2j.gameserver.instancemanager.FortSiegeManager.SiegeSpawn;
import net.sf.l2j.gameserver.model.CombatFlag;
import net.sf.l2j.gameserver.model.L2Character;
import net.sf.l2j.gameserver.model.L2Clan;
import net.sf.l2j.gameserver.model.L2Object;
import net.sf.l2j.gameserver.model.L2SiegeClan;
import net.sf.l2j.gameserver.model.L2World;
import net.sf.l2j.gameserver.model.L2SiegeClan.SiegeClanType;
import net.sf.l2j.gameserver.model.actor.instance.L2CommanderInstance;
import net.sf.l2j.gameserver.model.actor.instance.L2NpcInstance;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.network.SystemMessageId;
import net.sf.l2j.gameserver.network.serverpackets.FortressSiegeInfo;
import net.sf.l2j.gameserver.network.serverpackets.RelationChanged;
import net.sf.l2j.gameserver.network.serverpackets.SystemMessage;
import net.sf.l2j.gameserver.network.serverpackets.UserInfo;

public class FortSiege
{
	protected static final Logger _log = Logger.getLogger(FortSiege.class.getName());
	
	public static enum TeleportWhoType
	{
		All,
		Attacker,
		DefenderNotOwner,
		Owner,
		Spectator
	}
	
	// ===============================================================
	// Schedule task
	public class ScheduleEndSiegeTask implements Runnable
	{
		private Fort _fortInst;
		
		public ScheduleEndSiegeTask(Fort pFort)
		{
			_fortInst = pFort;
		}
		
		public void run()
		{
			if (!getIsInProgress())
				return;
			
			try
			{
				long timeRemaining = _siegeEndDate.getTimeInMillis() - Calendar.getInstance().getTimeInMillis();
				if (timeRemaining > 3600000)
				{
					ThreadPoolManager.getInstance().scheduleGeneral(new ScheduleEndSiegeTask(_fortInst), timeRemaining - 3600000); // Prepare task for 1 hr left.
				}
				else if ((timeRemaining <= 3600000) && (timeRemaining > 600000))
				{
					announceToPlayer(Math.round(timeRemaining / 60000) + " minute(s) until " + getFort().getName() + " siege conclusion.", true);
					ThreadPoolManager.getInstance().scheduleGeneral(new ScheduleEndSiegeTask(_fortInst), timeRemaining - 600000); // Prepare task for 10 minute left.
				}
				else if ((timeRemaining <= 600000) && (timeRemaining > 300000))
				{
					announceToPlayer(Math.round(timeRemaining / 60000) + " minute(s) until " + getFort().getName() + " siege conclusion.", true);
					ThreadPoolManager.getInstance().scheduleGeneral(new ScheduleEndSiegeTask(_fortInst), timeRemaining - 300000); // Prepare task for 5 minute left.
				}
				else if ((timeRemaining <= 300000) && (timeRemaining > 10000))
				{
					announceToPlayer(Math.round(timeRemaining / 60000) + " minute(s) until " + getFort().getName() + " siege conclusion.", true);
					ThreadPoolManager.getInstance().scheduleGeneral(new ScheduleEndSiegeTask(_fortInst), timeRemaining - 10000); // Prepare task for 10 seconds count down
				}
				else if ((timeRemaining <= 10000) && (timeRemaining > 0))
				{
					announceToPlayer(getFort().getName() + " siege " + Math.round(timeRemaining / 1000) + " second(s) left!", true);
					ThreadPoolManager.getInstance().scheduleGeneral(new ScheduleEndSiegeTask(_fortInst), timeRemaining); // Prepare task for second count down
				}
				else
				{
					_fortInst.getSiege().endSiege();
				}
			}
			catch (Exception e)
			{
				_log.log(Level.SEVERE, "", e);
			}
		}
	}
	public class ScheduleStartSiegeTask implements Runnable
	{
		private Fort _fortInst;
		
		public ScheduleStartSiegeTask(Fort pFort)
		{
			_fortInst = pFort;
		}
		
		public void run()
		{
			if (getIsInProgress())
				return;
			
			try
			{
				long timeRemaining = getSiegeDate().getTimeInMillis() - Calendar.getInstance().getTimeInMillis();
				if (timeRemaining > 86400000)
				{
					ThreadPoolManager.getInstance().scheduleGeneral(new ScheduleStartSiegeTask(_fortInst), timeRemaining - 86400000); // Prepare task for 24 before siege start to end registration
				}
				else if ((timeRemaining <= 86400000) && (timeRemaining > 13600000))
				{
					ThreadPoolManager.getInstance().scheduleGeneral(new ScheduleStartSiegeTask(_fortInst), timeRemaining - 13600000); // Prepare task for 1 hr left before siege start.
				}
				else if ((timeRemaining <= 13600000) && (timeRemaining > 600000))
				{
					announceToPlayer(Math.round(timeRemaining / 60000) + " minute(s) until " + getFort().getName() + " siege begin.", false);
					ThreadPoolManager.getInstance().scheduleGeneral(new ScheduleStartSiegeTask(_fortInst), timeRemaining - 600000); // Prepare task for 10 minute left.
				}
				else if ((timeRemaining <= 600000) && (timeRemaining > 300000))
				{
					announceToPlayer("The registration term for " + getFort().getName() + " has ended.", false);
					_isRegistrationOver = true;
					clearSiegeWaitingClan();
					ThreadPoolManager.getInstance().scheduleGeneral(new ScheduleStartSiegeTask(_fortInst), timeRemaining - 300000); // Prepare task for 5 minute left.
				}
				else if ((timeRemaining <= 300000) && (timeRemaining > 10000))
				{
					announceToPlayer(Math.round(timeRemaining / 60000) + " minute(s) until " + getFort().getName() + " siege begin.", false);
					ThreadPoolManager.getInstance().scheduleGeneral(new ScheduleStartSiegeTask(_fortInst), timeRemaining - 10000); // Prepare task for 10 seconds count down
				}
				else if ((timeRemaining <= 10000) && (timeRemaining > 0))
				{
					announceToPlayer(getFort().getName() + " siege " + Math.round(timeRemaining / 1000) + " second(s) to start!", false);
					ThreadPoolManager.getInstance().scheduleGeneral(new ScheduleStartSiegeTask(_fortInst), timeRemaining); // Prepare task for second count down
				}
				else
				{
					_fortInst.getSiege().startSiege();
				}
			}
			catch (Exception e)
			{
				_log.log(Level.SEVERE, "", e);
			}
		}
	}
	
	// =========================================================
	// Data Field
	// Attacker and Defender
	private List<L2SiegeClan> _attackerClans = new FastList<L2SiegeClan>(); // L2SiegeClan
	
	private List<L2SiegeClan> _defenderClans = new FastList<L2SiegeClan>(); // L2SiegeClan
	private List<L2SiegeClan> _defenderWaitingClans = new FastList<L2SiegeClan>(); // L2SiegeClan
	private int _defenderRespawnDelayPenalty;
	
	// Fort setting
	private List<L2CommanderInstance> _commanders = new FastList<L2CommanderInstance>();
	private Fort[] _fort;
	private boolean _isInProgress = false;
	private boolean _isScheduled = false;
	private boolean _isNormalSide = true; // true = Atk is Atk, false = Atk is Def
	protected boolean _isRegistrationOver = false;
	protected Calendar _siegeEndDate;
	private FortSiegeGuardManager _siegeGuardManager;
	protected Calendar _siegeRegistrationEndDate;
	
	private boolean _hasCastle = false;
	
	// =========================================================
	// Constructor
	public FortSiege(Fort[] fort)
	{
		_fort = fort;
		//_siegeGuardManager = new SiegeGuardManager(getFort());
		
		checkAutoTask();
		FortSiegeManager.getInstance().addSiege(this);
	}
	
	public void setHasCastle()
	{
		_hasCastle = true;
	}
	
	// =========================================================
	// Siege phases
	/**
	 * When siege ends<BR><BR>
	 */
	public void endSiege()
	{
		if (getIsInProgress())
		{
			announceToPlayer("The siege of " + getFort().getName() + " has finished!", false);
			
			if (getFort().getOwnerId() <= 0 && !_hasCastle)
				announceToPlayer("The siege of " + getFort().getName() + " has ended in a draw.", false);
			
			removeFlags(); // Removes all flags. Note: Remove flag before teleporting players
			unSpawnFlags();
			teleportPlayer(FortSiege.TeleportWhoType.Attacker, MapRegionTable.TeleportWhereType.Town); // Teleport to the second closest town
			teleportPlayer(FortSiege.TeleportWhoType.DefenderNotOwner, MapRegionTable.TeleportWhereType.Town); // Teleport to the second closest town
			teleportPlayer(FortSiege.TeleportWhoType.Spectator, MapRegionTable.TeleportWhereType.Town); // Teleport to the second closest town
			_isInProgress = false; // Flag so that siege instance can be started
			updatePlayerSiegeStateFlags(true);
			saveFortSiege(); // Save fort specific data
			clearSiegeClan(); // Clear siege clan from db
			removeCommander(); // Remove commander from this fort
			_siegeGuardManager.unspawnSiegeGuard(); // Remove all spawned siege guard from this fort
			if (getFort().getOwnerId() > 0)
				_siegeGuardManager.removeMercs();
			getFort().spawnDoor(); // Respawn door to fort
			getFort().getZone().updateZoneStatusForCharactersInside();
		}
	}
	
	private void removeDefender(L2SiegeClan sc)
	{
		if (sc != null)
			getDefenderClans().remove(sc);
	}
	
	private void removeAttacker(L2SiegeClan sc)
	{
		if (sc != null)
			getAttackerClans().remove(sc);
	}
	
	private void addDefender(L2SiegeClan sc, SiegeClanType type)
	{
		if (sc == null)
			return;
		sc.setType(type);
		getDefenderClans().add(sc);
	}
	
	private void addAttacker(L2SiegeClan sc)
	{
		if (sc == null)
			return;
		sc.setType(SiegeClanType.ATTACKER);
		getAttackerClans().add(sc);
	}
	
	/**
	 * When control of fort changed during siege<BR><BR>
	 */
	public void midVictory()
	{
		if (getIsInProgress()) // Siege still in progress
		{
			// defenders to attacker
			for (L2SiegeClan sc : getDefenderClans())
			{
				if (sc != null)
				{
					removeDefender(sc);
					addAttacker(sc);
				}
			}
			
			// owner as defender
			if (getFort().getOwnerId() > 0)
			{
				L2SiegeClan sc_newowner = getAttackerClan(getFort().getOwnerId());
				removeAttacker(sc_newowner);
				addDefender(sc_newowner, SiegeClanType.OWNER);
			}
			endSiege();
			return;
			
		}
	}
	
	/**
	 * When siege starts<BR><BR>
	 */
	public void startSiege()
	{
		if (!getIsInProgress())
		{
			if (getAttackerClans().size() <= 0)
			{
				SystemMessage sm;
				if (getFort().getOwnerId() <= 0)
					sm = new SystemMessage(SystemMessageId.SIEGE_OF_S1_HAS_BEEN_CANCELED_DUE_TO_LACK_OF_INTEREST);
				else
					sm = new SystemMessage(SystemMessageId.S1_SIEGE_WAS_CANCELED_BECAUSE_NO_CLANS_PARTICIPATED);
				sm.addString(getFort().getName());
				Announcements.getInstance().announceToAll(sm);
				return;
			}
			
			_isNormalSide = true; // Atk is now atk
			_isInProgress = true; // Flag so that same siege instance cannot be started again
			_isScheduled = false;
			
			loadSiegeClan(); // Load siege clan from db
			updatePlayerSiegeStateFlags(false);
			teleportPlayer(FortSiege.TeleportWhoType.Attacker, MapRegionTable.TeleportWhereType.Town); // Teleport to the closest town
			//teleportPlayer(Siege.TeleportWhoType.Spectator, MapRegionTable.TeleportWhereType.Town);      // Teleport to the second closest town
			spawnCommander(getFort().getFortId()); // Spawn commander
			//spawnControlTower(getFort().getFortId()); // Spawn control tower
			getFort().spawnDoor(); // Spawn door
			spawnSiegeGuard(); // Spawn siege guard
			MercTicketManager.getInstance().deleteTickets(getFort().getFortId()); // remove the tickets from the ground
			_defenderRespawnDelayPenalty = 0; // Reset respawn delay
			
			getFort().getZone().updateZoneStatusForCharactersInside();
			
			// Schedule a task to prepare auto siege end
			_siegeEndDate = Calendar.getInstance();
			_siegeEndDate.add(Calendar.MINUTE, FortSiegeManager.getInstance().getSiegeLength());
			ThreadPoolManager.getInstance().scheduleGeneral(new ScheduleEndSiegeTask(getFort()), 1000); // Prepare auto end task
			
			announceToPlayer("The siege of " + getFort().getName() + " has started!", false);
			saveFortSiege();
		}
	}
	
	// =========================================================
	// Method - Public
	/**
	 * Announce to player.<BR><BR>
	 * @param message The String of the message to send to player
	 * @param inAreaOnly The boolean flag to show message to players in area only.
	 */
	public void announceToPlayer(String message, boolean inAreaOnly)
	{
		if (inAreaOnly)
		{
			getFort().getZone().announceToPlayers(message);
			return;
		}
		
		// Get all players
		Collection<L2PcInstance> pls = L2World.getInstance().getAllPlayers().values();
		//synchronized (L2World.getInstance().getAllPlayers())
		{
			for (L2PcInstance player : pls)
				player.sendMessage(message);
		}
	}
	
	public void updatePlayerSiegeStateFlags(boolean clear)
	{
		L2Clan clan;
		for (L2SiegeClan siegeclan : getAttackerClans())
		{
			clan = ClanTable.getInstance().getClan(siegeclan.getClanId());
			for (L2PcInstance member : clan.getOnlineMembers(0))
			{
				if (clear)
					member.setSiegeState((byte) 0);
				else
					member.setSiegeState((byte) 1);
				member.sendPacket(new UserInfo(member));
				Collection<L2PcInstance> plrs = member.getKnownList().getKnownPlayers().values();
				//synchronized (member.getKnownList().getKnownPlayers())
				{
					for (L2PcInstance player : plrs)
					{
						player.sendPacket(new RelationChanged(member, member.getRelation(player), member.isAutoAttackable(player)));
						if (member.getPet() != null)
							player.sendPacket(new RelationChanged(member.getPet(), member.getRelation(player), member.isAutoAttackable(player)));
					}
				}
			}
		}
		for (L2SiegeClan siegeclan : getDefenderClans())
		{
			clan = ClanTable.getInstance().getClan(siegeclan.getClanId());
			for (L2PcInstance member : clan.getOnlineMembers(0))
			{
				if (clear)
					member.setSiegeState((byte) 0);
				else
					member.setSiegeState((byte) 2);
				member.sendPacket(new UserInfo(member));
				Collection<L2PcInstance> plrs = member.getKnownList().getKnownPlayers().values();
				//synchronized (member.getKnownList().getKnownPlayers())
				{
					for (L2PcInstance player : plrs)
					{
						player.sendPacket(new RelationChanged(member, member.getRelation(player), member.isAutoAttackable(player)));
						if (member.getPet() != null)
							player.sendPacket(new RelationChanged(member.getPet(), member.getRelation(player), member.isAutoAttackable(player)));
					}
				}
			}
		}
	}
	
	/**
	 * Approve clan as defender for siege<BR>
	 * <BR>
	 * 
	 * @param clanId
	 *            The int of player's clan id
	 */
	public void approveSiegeDefenderClan(int clanId)
	{
		if (clanId <= 0)
			return;
		saveSiegeClan(ClanTable.getInstance().getClan(clanId), 0, true);
		loadSiegeClan();
	}
	
	/** Return true if object is inside the zone */
	public boolean checkIfInZone(L2Object object)
	{
		return checkIfInZone(object.getX(), object.getY(), object.getZ());
	}
	
	/** Return true if object is inside the zone */
	public boolean checkIfInZone(int x, int y, int z)
	{
		return (getIsInProgress() && (getFort().checkIfInZone(x, y, z))); // Fort zone during siege
	}
	
	/**
	 * Return true if clan is attacker<BR><BR>
	 * @param clan The L2Clan of the player
	 */
	public boolean checkIsAttacker(L2Clan clan)
	{
		return (getAttackerClan(clan) != null);
	}
	
	/**
	 * Return true if clan is defender<BR><BR>
	 * @param clan The L2Clan of the player
	 */
	public boolean checkIsDefender(L2Clan clan)
	{
		return (getDefenderClan(clan) != null);
	}
	
	/**
	 * Return true if clan is defender waiting approval<BR><BR>
	 * @param clan The L2Clan of the player
	 */
	public boolean checkIsDefenderWaiting(L2Clan clan)
	{
		return (getDefenderWaitingClan(clan) != null);
	}
	
	/** Clear all registered siege clans from database for fort */
	public void clearSiegeClan()
	{
		java.sql.Connection con = null;
		try
		{
			con = L2DatabaseFactory.getInstance().getConnection();
			PreparedStatement statement = con.prepareStatement("DELETE FROM fortsiege_clans WHERE fort_id=?");
			statement.setInt(1, getFort().getFortId());
			statement.execute();
			statement.close();
			
			if (getFort().getOwnerId() > 0)
			{
				PreparedStatement statement2 = con.prepareStatement("DELETE FROM fortsiege_clans WHERE clan_id=?");
				statement2.setInt(1, getFort().getOwnerId());
				statement2.execute();
				statement2.close();
			}
			
			getAttackerClans().clear();
			getDefenderClans().clear();
			getDefenderWaitingClans().clear();
		}
		catch (Exception e)
		{
			_log.warning("Exception: clearSiegeClan(): " + e.getMessage());
			e.printStackTrace();
		}
		finally
		{
			try
			{
				con.close();
			}
			catch (Exception e)
			{
			}
		}
	}
	
	/** Set the date for the next siege. */
	private void clearSiegeDate()
	{
		getFort().getSiegeDate().setTimeInMillis(0);
		_isRegistrationOver = false; // Allow registration for next siege
	}
	
	/** Clear all siege clans waiting for approval from database for fort */
	public void clearSiegeWaitingClan()
	{
		java.sql.Connection con = null;
		try
		{
			con = L2DatabaseFactory.getInstance().getConnection();
			PreparedStatement statement = con.prepareStatement("DELETE FROM fortsiege_clans WHERE fort_id=? and type = 2");
			statement.setInt(1, getFort().getFortId());
			statement.execute();
			statement.close();
			
			getDefenderWaitingClans().clear();
		}
		catch (Exception e)
		{
			_log.warning("Exception: clearSiegeWaitingClan(): " + e.getMessage());
			e.printStackTrace();
		}
		finally
		{
			try
			{
				con.close();
			}
			catch (Exception e)
			{
			}
		}
	}
	
	/** Return list of L2PcInstance registered as attacker in the zone. */
	public List<L2PcInstance> getAttackersInZone()
	{
		List<L2PcInstance> players = new FastList<L2PcInstance>();
		L2Clan clan;
		for (L2SiegeClan siegeclan : getAttackerClans())
		{
			clan = ClanTable.getInstance().getClan(siegeclan.getClanId());
			for (L2PcInstance player : clan.getOnlineMembers(0))
			{
				if (checkIfInZone(player.getX(), player.getY(), player.getZ()))
					players.add(player);
			}
		}
		return players;
	}
	
	/** Return list of L2PcInstance registered as defender but not owner in the zone. */
	public List<L2PcInstance> getDefendersButNotOwnersInZone()
	{
		List<L2PcInstance> players = new FastList<L2PcInstance>();
		L2Clan clan;
		for (L2SiegeClan siegeclan : getDefenderClans())
		{
			clan = ClanTable.getInstance().getClan(siegeclan.getClanId());
			if (clan.getClanId() == getFort().getOwnerId())
				continue;
			for (L2PcInstance player : clan.getOnlineMembers(0))
			{
				if (checkIfInZone(player.getX(), player.getY(), player.getZ()))
					players.add(player);
			}
		}
		return players;
	}
	
	/** Return list of L2PcInstance in the zone. */
	public List<L2PcInstance> getPlayersInZone()
	{
		return getFort().getZone().getAllPlayers();
	}
	
	/** Return list of L2PcInstance owning the fort in the zone. */
	public List<L2PcInstance> getOwnersInZone()
	{
		List<L2PcInstance> players = new FastList<L2PcInstance>();
		L2Clan clan;
		for (L2SiegeClan siegeclan : getDefenderClans())
		{
			clan = ClanTable.getInstance().getClan(siegeclan.getClanId());
			if (clan.getClanId() != getFort().getOwnerId())
				continue;
			for (L2PcInstance player : clan.getOnlineMembers(0))
			{
				if (checkIfInZone(player.getX(), player.getY(), player.getZ()))
					players.add(player);
			}
		}
		return players;
	}
	
	/** Return list of L2PcInstance not registered as attacker or defender in the zone. */
	public List<L2PcInstance> getSpectatorsInZone()
	{
		List<L2PcInstance> players = new FastList<L2PcInstance>();
		
		Collection<L2PcInstance> pls = L2World.getInstance().getAllPlayers().values();
		//synchronized (L2World.getInstance().getAllPlayers())
		{
			for (L2PcInstance player : pls)
			{
				// quick check from player states, which don't include siege number however
				if (!player.isInsideZone(L2Character.ZONE_SIEGE) || player.getSiegeState() != 0)
					continue;
				if (checkIfInZone(player.getX(), player.getY(), player.getZ()))
					players.add(player);
			}
		}
		
		return players;
	}
	
	/** Control Tower was skilled */
	public void killedCT(L2NpcInstance ct)
	{
		_defenderRespawnDelayPenalty += FortSiegeManager.getInstance().getControlTowerLosePenalty(); // Add respawn penalty to defenders for each control tower lose
	}
	
	/** Commanderr was skilled */
	public void killedCommander(L2CommanderInstance ct)
	{
		if (_commanders != null)
		{
			_commanders.remove(ct);
			if (_commanders.size() == 0)
				spawnFlag(getFort().getFortId());
			//System.out.println("Commander empty !");
		}
		
	}
	
	/** Remove the flag that was killed */
	public void killedFlag(L2NpcInstance flag)
	{
		if (flag == null)
			return;
		for (L2SiegeClan clan : getAttackerClans())
		{
			if (clan.removeFlag(flag))
				return;
		}
	}
	
	/** Display list of registered clans */
	public void listRegisterClan(L2PcInstance player)
	{
		player.sendPacket(new FortressSiegeInfo(getFort()));
	}
	
	/**
	 * Register clan as attacker<BR><BR>
	 * @param player The L2PcInstance of the player trying to register
	 */
	public void registerAttacker(L2PcInstance player)
	{
		registerAttacker(player, false);
	}
	
	public void registerAttacker(L2PcInstance player, boolean force)
	{
		
		if (player.getClan() == null)
			return;
		int allyId = 0;
		if (getFort().getOwnerId() != 0)
			allyId = ClanTable.getInstance().getClan(getFort().getOwnerId()).getAllyId();
		if (allyId != 0)
		{
			if (player.getClan().getAllyId() == allyId && !force)
			{
				player.sendMessage("You cannot register as an attacker because your alliance owns the fort");
				return;
			}
		}
		if (force || checkIfCanRegister(player))
		{
			saveSiegeClan(player.getClan(), 1, false); // Save to database
			// if the first registering we start the timer
			if (getAttackerClans().size() == 1)
				startAutoTask(true);
		}
	}
	
	/**
	 * Register clan as defender<BR><BR>
	 * @param player The L2PcInstance of the player trying to register
	 */
	public void registerDefender(L2PcInstance player)
	{
		registerDefender(player, false);
	}
	
	public void registerDefender(L2PcInstance player, boolean force)
	{
		if (getFort().getOwnerId() <= 0)
			player.sendMessage("You cannot register as a defender because " + getFort().getName() + " is owned by NPC.");
		else if (force || checkIfCanRegister(player))
			saveSiegeClan(player.getClan(), 2, false); // Save to database
	}
	
	/**
	 * Remove clan from siege<BR><BR>
	 * @param clanId The int of player's clan id
	 */
	public void removeSiegeClan(int clanId)
	{
		
		java.sql.Connection con = null;
		try
		{
			con = L2DatabaseFactory.getInstance().getConnection();
			PreparedStatement statement;
			if (clanId != 0)
				statement = con.prepareStatement("DELETE FROM fortsiege_clans WHERE fort_id=? and clan_id=?");
			else
				statement = con.prepareStatement("DELETE FROM fortsiege_clans WHERE fort_id=?");
			
			statement.setInt(1, getFort().getFortId());
			if (clanId != 0)
				statement.setInt(2, clanId);
			statement.execute();
			statement.close();
			
			loadSiegeClan();
		}
		catch (Exception e)
		{
		}
		finally
		{
			try
			{
				con.close();
			}
			catch (Exception e)
			{
			}
		}
	}
	
	/**
	 * Remove clan from siege<BR><BR>
	 * @param player The L2PcInstance of player/clan being removed
	 */
	public void removeSiegeClan(L2Clan clan)
	{
		if (clan == null || clan.getHasFort() == getFort().getFortId() || !FortSiegeManager.getInstance().checkIsRegistered(clan, getFort().getFortId()))
			return;
		removeSiegeClan(clan.getClanId());
	}
	
	/**
	 * Remove clan from siege<BR><BR>
	 * @param player The L2PcInstance of player/clan being removed
	 */
	public void removeSiegeClan(L2PcInstance player)
	{
		removeSiegeClan(player.getClan());
	}
	
	/**
	 * Start the auto tasks<BR>
	 * <BR>
	 */
	public void checkAutoTask()
	{
		if (getFort().getSiegeDate().getTimeInMillis() < Calendar.getInstance().getTimeInMillis())
		{
			clearSiegeDate();
			saveSiegeDate();
			removeSiegeClan(0); // remove all clans
			return;
		}
		
		startAutoTask(false);
	}
	
	/**
	 * Start the auto tasks<BR><BR>
	 */
	public void startAutoTask(boolean setTime)
	{
		if (setTime)
			setSiegeDateTime();
		System.out.println("Siege of " + getFort().getName() + ": " + getFort().getSiegeDate().getTime());
		setIsScheduled(true);
		loadSiegeClan();
		// Schedule registration end
		_siegeRegistrationEndDate = Calendar.getInstance();
		_siegeRegistrationEndDate.setTimeInMillis(getFort().getSiegeDate().getTimeInMillis());
		_siegeRegistrationEndDate.add(Calendar.MINUTE, -10);
		// Schedule siege auto start
		ThreadPoolManager.getInstance().scheduleGeneral(new FortSiege.ScheduleStartSiegeTask(getFort()), 1000);
	}
	
	/**
	 * Teleport players
	 */
	public void teleportPlayer(TeleportWhoType teleportWho, MapRegionTable.TeleportWhereType teleportWhere)
	{
		List<L2PcInstance> players;
		switch (teleportWho)
		{
			case Owner:
				players = getOwnersInZone();
				break;
			case Attacker:
				players = getAttackersInZone();
				break;
			case DefenderNotOwner:
				players = getDefendersButNotOwnersInZone();
				break;
			case Spectator:
				players = getSpectatorsInZone();
				break;
			default:
				players = getPlayersInZone();
		}
		
		for (L2PcInstance player : players)
		{
			if (player.isGM() || player.isInJail())
				continue;
			player.teleToLocation(teleportWhere);
		}
	}
	
	// =========================================================
	// Method - Private
	/**
	 * Add clan as attacker<BR><BR>
	 * @param clanId The int of clan's id
	 */
	private void addAttacker(int clanId)
	{
		getAttackerClans().add(new L2SiegeClan(clanId, SiegeClanType.ATTACKER)); // Add registered attacker to attacker list
	}
	
	/**
	 * Add clan as defender<BR><BR>
	 * @param clanId The int of clan's id
	 */
	private void addDefender(int clanId)
	{
		getDefenderClans().add(new L2SiegeClan(clanId, SiegeClanType.DEFENDER)); // Add registered defender to defender list
	}
	
	/**
	 * <p>Add clan as defender with the specified type</p>
	 * @param clanId The int of clan's id
	 * @param type the type of the clan
	 */
	private void addDefender(int clanId, SiegeClanType type)
	{
		getDefenderClans().add(new L2SiegeClan(clanId, type));
	}
	
	/**
	 * Add clan as defender waiting approval<BR><BR>
	 * @param clanId The int of clan's id
	 */
	private void addDefenderWaiting(int clanId)
	{
		getDefenderWaitingClans().add(new L2SiegeClan(clanId, SiegeClanType.DEFENDER_PENDING)); // Add registered defender to defender list
	}
	
	/**
	 * Return true if the player can register.<BR><BR>
	 * @param player The L2PcInstance of the player trying to register
	 */
	private boolean checkIfCanRegister(L2PcInstance player)
	{
		if (getIsRegistrationOver())
			player.sendMessage("The deadline to register for the siege of " + getFort().getName() + " has passed.");
		else if (getIsInProgress())
			player.sendMessage("This is not the time for siege registration and so registration and cancellation cannot be done.");
		else if (player.getClan() == null || player.getClan().getLevel() < FortSiegeManager.getInstance().getSiegeClanMinLevel())
			player.sendMessage("Only clans with Level " + FortSiegeManager.getInstance().getSiegeClanMinLevel() + " and higher may register for a fort siege.");
		else if (player.getClan().getClanId() == getFort().getOwnerId())
			player.sendPacket(new SystemMessage(SystemMessageId.CLAN_THAT_OWNS_CASTLE_IS_AUTOMATICALLY_REGISTERED_DEFENDING));
		else if (FortSiegeManager.getInstance().checkIsRegistered(player.getClan(), getFort().getFortId()))
			player.sendPacket(new SystemMessage(SystemMessageId.ALREADY_REQUESTED_SIEGE_BATTLE));
		else if (checkIfAlreadyRegisteredForSameDay(player.getClan()))
			player.sendPacket(new SystemMessage(SystemMessageId.APPLICATION_DENIED_BECAUSE_ALREADY_SUBMITTED_A_REQUEST_FOR_ANOTHER_SIEGE_BATTLE));
		else
			return true;
		
		return false;
	}
	
	/**
	 * Return true if the clan has already registered to a siege for the same day.<BR><BR>
	 * @param clan The L2Clan of the player trying to register
	 */
	public boolean checkIfAlreadyRegisteredForSameDay(L2Clan clan)
	{
		for (FortSiege siege : FortSiegeManager.getInstance().getSieges())
		{
			if (siege == this)
				continue;
			if (siege.getSiegeDate().get(Calendar.DAY_OF_WEEK) == this.getSiegeDate().get(Calendar.DAY_OF_WEEK))
			{
				if (siege.checkIsAttacker(clan))
					return true;
				if (siege.checkIsDefender(clan))
					return true;
				if (siege.checkIsDefenderWaiting(clan))
					return true;
			}
		}
		return false;
	}
	
	private void setSiegeDateTime()
	{
		Calendar newDate = Calendar.getInstance();
		newDate.add(Calendar.MINUTE, 60);
		getFort().setSiegeDate(newDate);
		saveSiegeDate();
	}
	
	/** Load siege clans. */
	private void loadSiegeClan()
	{
		java.sql.Connection con = null;
		try
		{
			getAttackerClans().clear();
			getDefenderClans().clear();
			getDefenderWaitingClans().clear();
			
			// Add fort owner as defender (add owner first so that they are on the top of the defender list)
			if (getFort().getOwnerId() > 0)
				addDefender(getFort().getOwnerId(), SiegeClanType.OWNER);
			
			PreparedStatement statement = null;
			ResultSet rs = null;
			
			con = L2DatabaseFactory.getInstance().getConnection();
			
			statement = con.prepareStatement("SELECT clan_id,type FROM fortsiege_clans where fort_id=?");
			statement.setInt(1, getFort().getFortId());
			rs = statement.executeQuery();
			
			int typeId;
			while (rs.next())
			{
				typeId = rs.getInt("type");
				if (typeId == 0)
					addDefender(rs.getInt("clan_id"));
				else if (typeId == 1)
					addAttacker(rs.getInt("clan_id"));
				else if (typeId == 2)
					addDefenderWaiting(rs.getInt("clan_id"));
			}
			
			rs.close();
			statement.close();
		}
		catch (Exception e)
		{
			_log.warning("Exception: loadSiegeClan(): " + e.getMessage());
			e.printStackTrace();
		}
		finally
		{
			try
			{
				con.close();
			}
			catch (Exception e)
			{
			}
		}
	}
	
	/** Remove artifacts spawned. */
	private void removeCommander()
	{
		if (_commanders != null)
		{
			// Remove all instance of artifact for this fort
			for (L2CommanderInstance commander : _commanders)
			{
				if (commander != null)
					commander.decayMe();
			}
			_commanders = null;
		}
	}
	
	/** Remove all flags. */
	private void removeFlags()
	{
		for (L2SiegeClan sc : getAttackerClans())
		{
			if (sc != null)
				sc.removeFlags();
		}
		for (L2SiegeClan sc : getDefenderClans())
		{
			if (sc != null)
				sc.removeFlags();
		}
	}
	
	/** Save fort siege related to database. */
	private void saveFortSiege()
	{
		clearSiegeDate(); // clear siege date
		saveSiegeDate(); // Save the new date
		setIsScheduled(false);
	}
	
	/** Save siege date to database. */
	private void saveSiegeDate()
	{
		java.sql.Connection con = null;
		try
		{
			con = L2DatabaseFactory.getInstance().getConnection();
			PreparedStatement statement = con.prepareStatement("Update fort set siegeDate = ? where id = ?");
			statement.setLong(1, getSiegeDate().getTimeInMillis());
			statement.setInt(2, getFort().getFortId());
			statement.execute();
			
			statement.close();
		}
		catch (Exception e)
		{
			_log.warning("Exception: saveSiegeDate(): " + e.getMessage());
			e.printStackTrace();
		}
		finally
		{
			try
			{
				con.close();
			}
			catch (Exception e)
			{
			}
		}
	}
	
	/**
	 * Save registration to database.<BR><BR>
	 * @param clan The L2Clan of player
	 * @param typeId -1 = owner 0 = defender, 1 = attacker, 2 = defender waiting
	 */
	private void saveSiegeClan(L2Clan clan, int typeId, boolean isUpdateRegistration)
	{
		if (clan.getHasFort() > 0)
			return;
		
		java.sql.Connection con = null;
		try
		{
			if (typeId == 0 || typeId == 2 || typeId == -1)
			{
				if (getDefenderClans().size() + getDefenderWaitingClans().size() >= FortSiegeManager.getInstance().getDefenderMaxClans())
					return;
			}
			else
			{
				if (getAttackerClans().size() >= FortSiegeManager.getInstance().getAttackerMaxClans())
					return;
			}
			
			con = L2DatabaseFactory.getInstance().getConnection();
			PreparedStatement statement;
			if (!isUpdateRegistration)
			{
				statement = con.prepareStatement("INSERT INTO fortsiege_clans (clan_id,fort_id,type,fort_owner) values (?,?,?,0)");
				statement.setInt(1, clan.getClanId());
				statement.setInt(2, getFort().getFortId());
				statement.setInt(3, typeId);
				statement.execute();
				statement.close();
			}
			else
			{
				statement = con.prepareStatement("Update fortsiege_clans set type = ? where fort_id = ? and clan_id = ?");
				statement.setInt(1, typeId);
				statement.setInt(2, getFort().getFortId());
				statement.setInt(3, clan.getClanId());
				statement.execute();
				statement.close();
			}
			
			if (typeId == 0 || typeId == -1)
			{
				addDefender(clan.getClanId());
				announceToPlayer(clan.getName() + " has been registered to defend " + getFort().getName(), false);
			}
			else if (typeId == 1)
			{
				addAttacker(clan.getClanId());
				announceToPlayer(clan.getName() + " has been registered to attack " + getFort().getName(), false);
			}
			else if (typeId == 2)
			{
				addDefenderWaiting(clan.getClanId());
				announceToPlayer(clan.getName() + " has requested to defend " + getFort().getName(), false);
			}
		}
		catch (Exception e)
		{
			_log.warning("Exception: saveSiegeClan(L2Clan clan, int typeId, boolean isUpdateRegistration): " + e.getMessage());
			e.printStackTrace();
		}
		finally
		{
			try
			{
				con.close();
			}
			catch (Exception e)
			{
			}
		}
	}
	
	/** Spawn artifact. */
	private void spawnCommander(int Id)
	{
		//Set commanders array size if one does not exist
		if (_commanders == null)
			_commanders = new FastList<L2CommanderInstance>();
		
		for (SiegeSpawn _sp : FortSiegeManager.getInstance().getCommanderSpawnList(Id))
		{
			L2CommanderInstance commander;
			
			commander = new L2CommanderInstance(IdFactory.getInstance().getNextId(), NpcTable.getInstance().getTemplate(_sp.getNpcId()));
			commander.setCurrentHpMp(commander.getMaxHp(), commander.getMaxMp());
			commander.setHeading(_sp.getLocation().getHeading());
			commander.spawnMe(_sp.getLocation().getX(), _sp.getLocation().getY(), _sp.getLocation().getZ() + 50);
			
			_commanders.add(commander);
		}
	}
	
	private void spawnFlag(int Id)
	{
		for (CombatFlag cf : FortSiegeManager.getInstance().getFlagList(Id))
		{
			cf.spawnMe();
		}
		
	}
	
	private void unSpawnFlags()
	{
		
		for (CombatFlag cf : FortSiegeManager.getInstance().getFlagList(getFort().getFortId()))
		{
			cf.unSpawnMe();
		}
		
	}
	
	/**
	 * Spawn siege guard.<BR><BR>
	 */
	private void spawnSiegeGuard()
	{
		getSiegeGuardManager().spawnSiegeGuard();
		
		// Register guard to the closest Control Tower
		// When CT dies, so do all the guards that it controls
		//        if (getSiegeGuardManager().getSiegeGuardSpawn().size() > 0 && _controlTowers.size() > 0)
		//        {
		//            L2ControlTowerInstance closestCt;
		//            double distance, x, y, z;
		//            double distanceClosest = 0;
		//            for (L2Spawn spawn : getSiegeGuardManager().getSiegeGuardSpawn())
		//            {
		//                if (spawn == null) continue;
		//                closestCt = null;
		//                distanceClosest = 0;
		//                for (L2ControlTowerInstance ct : _controlTowers)
		//                {
		//                    if (ct == null) continue;
		//                    x = (spawn.getLocx() - ct.getX());
		//                    y = (spawn.getLocy() - ct.getY());
		//                    z = (spawn.getLocz() - ct.getZ());
		//
		//                    distance = (x * x) + (y * y) + (z * z);
		//
		//                    if (closestCt == null || distance < distanceClosest)
		//                    {
		//                        closestCt = ct;
		//                        distanceClosest = distance;
		//                    }
		//                }
		//
		//                if (closestCt != null) closestCt.registerGuard(spawn);
		//            }
		//        }
	}
	
	public final L2SiegeClan getAttackerClan(L2Clan clan)
	{
		if (clan == null)
			return null;
		return getAttackerClan(clan.getClanId());
	}
	
	public final L2SiegeClan getAttackerClan(int clanId)
	{
		for (L2SiegeClan sc : getAttackerClans())
			if (sc != null && sc.getClanId() == clanId)
				return sc;
		return null;
	}
	
	public final List<L2SiegeClan> getAttackerClans()
	{
		if (_isNormalSide)
			return _attackerClans;
		return _defenderClans;
	}
	
	public final int getAttackerRespawnDelay()
	{
		return (FortSiegeManager.getInstance().getAttackerRespawnDelay());
	}
	
	public final Fort getFort()
	{
		if (_fort == null || _fort.length <= 0)
			return null;
		return _fort[0];
	}
	
	public final L2SiegeClan getDefenderClan(L2Clan clan)
	{
		if (clan == null)
			return null;
		return getDefenderClan(clan.getClanId());
	}
	
	public final L2SiegeClan getDefenderClan(int clanId)
	{
		for (L2SiegeClan sc : getDefenderClans())
			if (sc != null && sc.getClanId() == clanId)
				return sc;
		return null;
	}
	
	public final List<L2SiegeClan> getDefenderClans()
	{
		if (_isNormalSide)
			return _defenderClans;
		return _attackerClans;
	}
	
	public final L2SiegeClan getDefenderWaitingClan(L2Clan clan)
	{
		if (clan == null)
			return null;
		return getDefenderWaitingClan(clan.getClanId());
	}
	
	public final L2SiegeClan getDefenderWaitingClan(int clanId)
	{
		for (L2SiegeClan sc : getDefenderWaitingClans())
			if (sc != null && sc.getClanId() == clanId)
				return sc;
		return null;
	}
	
	public final List<L2SiegeClan> getDefenderWaitingClans()
	{
		return _defenderWaitingClans;
	}
	
	public final int getDefenderRespawnDelay()
	{
		return (FortSiegeManager.getInstance().getDefenderRespawnDelay() + _defenderRespawnDelayPenalty);
	}
	
	public final boolean getIsInProgress()
	{
		return _isInProgress;
	}
	
	public final boolean getIsScheduled()
	{
		return _isScheduled;
	}
	
	public final void setIsScheduled(boolean isScheduled)
	{
		_isScheduled = isScheduled;
	}
	
	public final boolean getIsRegistrationOver()
	{
		return _isRegistrationOver;
	}
	
	public final Calendar getSiegeDate()
	{
		return getFort().getSiegeDate();
	}
	
	public List<L2NpcInstance> getFlag(L2Clan clan)
	{
		if (clan != null)
		{
			L2SiegeClan sc = getAttackerClan(clan);
			if (sc != null)
				return sc.getFlag();
		}
		return null;
	}
	
	public final FortSiegeGuardManager getSiegeGuardManager()
	{
		if (_siegeGuardManager == null)
		{
			_siegeGuardManager = new FortSiegeGuardManager(getFort());
		}
		return _siegeGuardManager;
	}
}
