/*
 * 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 2, 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * http://www.gnu.org/copyleft/gpl.html
 */
package com.l2dot.gameserver.instancemanager;

import java.awt.Polygon;
import java.awt.Shape;
import java.io.File;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

import javax.xml.parsers.DocumentBuilderFactory;

import javolution.util.FastList;
import javolution.util.FastMap;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;

import com.l2dot.Config;
import com.l2dot.L2DatabaseFactory;
import com.l2dot.gameserver.datatables.NpcTable;
import com.l2dot.gameserver.datatables.SpawnTable;
import com.l2dot.gameserver.model.L2ItemInstance;
import com.l2dot.gameserver.model.L2Spawn;
import com.l2dot.gameserver.model.actor.instance.L2NpcInstance;
import com.l2dot.gameserver.model.actor.instance.L2PcInstance;
import com.l2dot.gameserver.model.entity.DimensionalRift;
import com.l2dot.gameserver.network.serverpackets.NpcHtmlMessage;
import com.l2dot.gameserver.templates.L2NpcTemplate;
import com.l2dot.gameserver.util.Util;
import com.l2dot.util.Rnd;

/**
* Thanks to L2Fortress and balancer.ru - kombat
*/
public class DimensionalRiftManager
{

    private static Log _log = LogFactory.getLog(DimensionalRiftManager.class.getName());
    private static DimensionalRiftManager _instance;
    private FastMap<Byte, FastMap<Byte, DimensionalRiftRoom>> _rooms = new FastMap<Byte, FastMap<Byte, DimensionalRiftRoom>>();
    private final short DIMENSIONAL_FRAGMENT_ITEM_ID = 7079;

    public static DimensionalRiftManager getInstance()
    {
        if(_instance == null)
            _instance = new DimensionalRiftManager();

        return _instance;
    }

    private DimensionalRiftManager()
    {
        loadRooms();
        loadSpawns();
    }

    public DimensionalRiftRoom getRoom(byte type, byte room)
    {
        return _rooms.get(type) == null ? null : _rooms.get(type).get(room);
    }

    private void loadRooms()
    {
        Connection con = null;

        try
        {
            con = L2DatabaseFactory.getInstance().getConnection();
            PreparedStatement s = con.prepareStatement("SELECT * FROM dimensional_rift");
            ResultSet rs = s.executeQuery();

            while(rs.next())
            {
                // 0 waiting room, 1 recruit, 2 soldier, 3 officer, 4 captain , 5 commander, 6 hero
                byte type = rs.getByte("type");
                byte room_id = rs.getByte("room_id");

                //coords related
                int xMin = rs.getInt("xMin");
                int xMax = rs.getInt("xMax");
                int yMin = rs.getInt("yMin");
                int yMax = rs.getInt("yMax");
                int z1 = rs.getInt("zMin");
                int z2 = rs.getInt("zMax");
                int xT = rs.getInt("xT");
                int yT = rs.getInt("yT");
                int zT = rs.getInt("zT");
                boolean isBossRoom = rs.getByte("boss") > 0;

                if(!_rooms.containsKey(type))
                    _rooms.put(type, new FastMap<Byte, DimensionalRiftRoom>());

                _rooms.get(type).put(room_id, new DimensionalRiftRoom(type, room_id, xMin, xMax, yMin, yMax, z1, z2, xT, yT, zT, isBossRoom));
            }

            s.close();
            con.close();
        }
        catch (Exception e)
        {
            _log.warn("Can't load Dimension Rift zones. " + e);
        }
        finally
        {
            try
            {
                con.close();
            }
            catch (Exception e)
            { /*do nothing */}
        }

        int typeSize = _rooms.keySet().size();
        int roomSize = 0;

        for(Byte b : _rooms.keySet())
            roomSize += _rooms.get(b).keySet().size();

        _log.info("DimensionalRiftManager: Loaded " + typeSize + " room types with " + roomSize + " rooms.");
    }

    public void loadSpawns()
    {
        int countGood = 0, countBad = 0;
        try
        {
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            factory.setValidating(false);
            factory.setIgnoringComments(true);

            File file = new File(Config.DATAPACK_ROOT+"/data/dimensionalRift.xml");
            if (!file.exists())
                throw new IOException();

            Document doc = factory.newDocumentBuilder().parse(file);
            NamedNodeMap attrs;
            byte type, roomId;
            int mobId, x, y, z, delay, count;
            L2Spawn spawnDat;
            L2NpcTemplate template;

            for (Node rift = doc.getFirstChild(); rift != null; rift = rift.getNextSibling())
            {
                if ("rift".equalsIgnoreCase(rift.getNodeName()))
                {
                    for (Node area = rift.getFirstChild(); area != null; area = area.getNextSibling())
                    {
                        if ("area".equalsIgnoreCase(area.getNodeName()))
                        {
                            attrs = area.getAttributes();
                            type = Byte.parseByte(attrs.getNamedItem("type").getNodeValue());

                            for (Node room = area.getFirstChild(); room != null; room = room.getNextSibling())
                            {
                                if ("room".equalsIgnoreCase(room.getNodeName()))
                                {
                                    attrs = room.getAttributes();
                                    roomId = Byte.parseByte(attrs.getNamedItem("id").getNodeValue());

                                    for (Node spawn = room.getFirstChild(); spawn != null; spawn = spawn.getNextSibling())
                                    {
                                        if ("spawn".equalsIgnoreCase(spawn.getNodeName()))
                                        {
                                            attrs = spawn.getAttributes();
                                            mobId = Integer.parseInt(attrs.getNamedItem("mobId").getNodeValue());
                                            delay = Integer.parseInt(attrs.getNamedItem("delay").getNodeValue());
                                            count = Integer.parseInt(attrs.getNamedItem("count").getNodeValue());

                                            template = NpcTable.getInstance().getTemplate(mobId);
                                            if(template==null)_log.warn("Template "+mobId+" not found!");
                                            if(!_rooms.containsKey(type))_log.warn("Type "+type+" not found!");
                                            else if(!_rooms.get(type).containsKey(roomId))_log.warn("Room "+roomId+" in Type "+type+" not found!");

                                            for (int i = 0; i < count; i++)
                                            {
	                                            DimensionalRiftRoom riftRoom = _rooms.get(type).get(roomId);
	                                            x = riftRoom.getRandomX();
	                                            y = riftRoom.getRandomY();
	                                            z = riftRoom.getTeleportCoords()[2];

	                                            if (template != null && _rooms.containsKey(type) && _rooms.get(type).containsKey(roomId))
	                                            {
	                                                spawnDat = new L2Spawn(template);
	                                                spawnDat.setAmount(1);
	                                                spawnDat.setLocx(x);
	                                                spawnDat.setLocy(y);
	                                                spawnDat.setLocz(z);
	                                                spawnDat.setHeading(-1);
	                                                spawnDat.setRespawnDelay(delay);
	                                                SpawnTable.getInstance().addNewSpawn(spawnDat, false);
	                                                _rooms.get(type).get(roomId).getSpawns().add(spawnDat);
	                                                countGood++;
	                                            }
	                                            else
	                                            {
	                                                countBad++;
	                                            }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
        catch(Exception e)
        {
            _log.warn("Error on loading dimensional rift spawns: " + e);
            e.printStackTrace();
        }
        _log.info("DimensionalRiftManager: Loaded " + countGood + " dimensional rift spawns, "+countBad + " errors.");
    }

    public void reload()
    {
        for(Byte b : _rooms.keySet())
        {
            for(int i : _rooms.get(b).keySet())
            {
                _rooms.get(b).get(i).getSpawns().clear();
            }
            _rooms.get(b).clear();
       }
        _rooms.clear();
        loadRooms();
        loadSpawns();
    }

    public boolean checkIfInRiftZone(int x, int y, int z, boolean ignorePeaceZone)
    {
        if(ignorePeaceZone)
            return _rooms.get((byte) 0).get((byte) 1).checkIfInZone(x, y, z);
        else
            return _rooms.get((byte) 0).get((byte) 1).checkIfInZone(x, y, z) && !_rooms.get((byte) 0).get((byte) 0).checkIfInZone(x, y, z);
    }

    public boolean checkIfInPeaceZone(int x, int y, int z)
    {
        return _rooms.get((byte) 0).get((byte) 0).checkIfInZone(x, y, z);
    }

    public void teleportToWaitingRoom(L2PcInstance player)
    {
        int[] coords = getRoom((byte) 0, (byte) 0).getTeleportCoords();
        player.teleToLocation(coords[0], coords[1], coords[2]);
    }

    public void start(L2PcInstance player, byte type, L2NpcInstance npc)
    {
        boolean canPass = true;
        if(!player.isInParty())
        {
            showHtmlFile(player, "data/html/seven_signs/rift/NoParty.htm", npc);
            return;
        }

        if(player.getParty().getPartyLeaderOID() != player.getObjectId())
        {
            showHtmlFile(player, "data/html/seven_signs/rift/NotPartyLeader.htm", npc);
            return;
        }

        if(player.getParty().isInDimensionalRift())
        {
            handleCheat(player, npc);
            return;
        }

        if(player.getParty().getMemberCount() < Config.RIFT_MIN_PARTY_SIZE)
        {
            NpcHtmlMessage html = new NpcHtmlMessage(npc.getObjectId());
            html.setFile("data/html/seven_signs/rift/SmallParty.htm");
            html.replace("%npc_name%", npc.getName());
            html.replace("%count%", new Integer(Config.RIFT_MIN_PARTY_SIZE).toString());
            player.sendPacket(html);
            return;
        }

        for(L2PcInstance p : player.getParty().getPartyMembers())
            if(!checkIfInPeaceZone(p.getX(), p.getY(), p.getZ()))
                canPass = false;

        if(!canPass)
        {
            showHtmlFile(player, "data/html/seven_signs/rift/NotInWaitingRoom.htm", npc);
            return;
        }

        L2ItemInstance i;
        for(L2PcInstance p : player.getParty().getPartyMembers())
        {
            i = p.getInventory().getItemByItemId(DIMENSIONAL_FRAGMENT_ITEM_ID);

            if(i == null)
            {
                canPass = false;
                break;
            }

            if(i.getCount() > 0)
                if(i.getCount() < getNeededItems(type))
                    canPass = false;
        }

        if(!canPass)
        {
            NpcHtmlMessage html = new NpcHtmlMessage(npc.getObjectId());
            html.setFile("data/html/seven_signs/rift/NoFragments.htm");
            html.replace("%npc_name%", npc.getName());
            html.replace("%count%", new Integer(getNeededItems(type)).toString());
            player.sendPacket(html);
            return;
        }

        for (L2PcInstance p : player.getParty().getPartyMembers())
        {
            i = p.getInventory().getItemByItemId(DIMENSIONAL_FRAGMENT_ITEM_ID);
            p.destroyItem("RiftEntrance", i.getObjectId(), getNeededItems(type), null, false);
        }

        new DimensionalRift(player.getParty(), type, (byte) Rnd.get(1, 9));
    }

    public void killRift(DimensionalRift d)
    {
        if(d.getTeleportTimerTask() != null)d.getTeleportTimerTask().cancel();
        d.setTeleportTimerTask(null);

        if(d.getTeleportTimer() != null)d.getTeleportTimer().cancel();
        d.setTeleportTimer(null);

        if(d.getSpawnTimerTask() != null)d.getSpawnTimerTask().cancel();
        d.setSpawnTimerTask(null);

        if(d.getSpawnTimer() != null)d.getSpawnTimer().cancel();
        d.setSpawnTimer(null);
    }

    public class DimensionalRiftRoom
    {
        protected final byte _type;
        protected final byte _room;
        private final int _xMin;
        private final int _xMax;
        private final int _yMin;
        private final int _yMax;
        private final int _zMin;
        private final int _zMax;
        private final int[] _teleportCoords;
        private final Shape _s;
        private final boolean _isBossRoom;
        private final FastList<L2Spawn> _roomSpawns;
        protected final FastList<L2NpcInstance> _roomMobs;

        public DimensionalRiftRoom(byte type, byte room, int xMin, int xMax, int yMin, int yMax, int zMin, int zMax, int xT, int yT, int zT, boolean isBossRoom)
        {
            _type = type;
            _room = room;
            _xMin = (xMin + 128);
            _xMax = (xMax - 128);
            _yMin = (yMin + 128);
            _yMax = (yMax - 128);
            _zMin = zMin;
            _zMax = zMax;
            _teleportCoords = new int[] { xT, yT, zT };
            _isBossRoom = isBossRoom;
            _roomSpawns = new FastList<L2Spawn>();
            _roomMobs = new FastList<L2NpcInstance>();
            _s = new Polygon(new int[] { xMin, xMax, xMax, xMin }, new int[] { yMin, yMin, yMax, yMax }, 4);
        }

        public int getRandomX()
        {
        	return Rnd.get(_xMin, _xMax);
        }

        public int getRandomY()
        {
        	return Rnd.get(_yMin, _yMax);
        }

        public int[] getTeleportCoords()
        {
            return _teleportCoords;
        }

        public boolean checkIfInZone(int x, int y, int z)
        {
            return _s.contains(x, y) && z >= _zMin && z <= _zMax;
        }

        public boolean isBossRoom()
        {
            return _isBossRoom;
        }

        public FastList<L2Spawn> getSpawns()
        {
            return _roomSpawns;
        }

        public void spawn()
        {
            for(L2Spawn spawn : _roomSpawns)
            {
                spawn.doSpawn();
                spawn.startRespawn();
            }
        }

        public void unspawn()
        {
            for(L2Spawn spawn : _roomSpawns)
            {
                spawn.stopRespawn();
                if(spawn.getLastSpawn() != null)
                    spawn.getLastSpawn().deleteMe();
            }
        }
    }

    private int getNeededItems(byte type)
    {
        switch(type)
        {
            case 1:
                return Config.RIFT_ENTER_COST_RECRUIT;
            case 2:
                return Config.RIFT_ENTER_COST_SOLDIER;
            case 3:
                return Config.RIFT_ENTER_COST_OFFICER;
            case 4:
                return Config.RIFT_ENTER_COST_CAPTAIN;
            case 5:
                return Config.RIFT_ENTER_COST_COMMANDER;
            case 6:
                return Config.RIFT_ENTER_COST_HERO;
            default:
                return 999999;
        }
    }

    public void showHtmlFile(L2PcInstance player, String file, L2NpcInstance npc)
    {
        NpcHtmlMessage html = new NpcHtmlMessage(npc.getObjectId());
        html.setFile(file);
        html.replace("%npc_name%", npc.getName());
        player.sendPacket(html);
    }

    public void handleCheat(L2PcInstance player, L2NpcInstance npc)
    {
        showHtmlFile(player, "data/html/seven_signs/rift/Cheater.htm", npc);
        if (!player.isGM())
        {
            _log.warn("Player "+player.getName()+"("+player.getObjectId()+") was cheating in dimension rift area!");
            Util.handleIllegalPlayerAction(player,"Warning!! Character "+player.getName()+" tried to cheat in dimensional rift.",Config.DEFAULT_PUNISH);
        }
    }
}
