/*
 This file is part of the ZeroFusion MapleStory Server
 Copyright (C) 2008 Patrick Huy <patrick.huy@frz.cc> 
 Matthias Butz <matze@odinms.de>
 Jan Christian Meyer <vimes@odinms.de>
 ZeroFusion organized by "RMZero213" <RMZero213@hotmail.com>

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU Affero General Public License version 3
 as published by the Free Software Foundation. You may not use, modify
 or distribute this program under any other version of the
 GNU Affero General Public License.

 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 Affero General Public License for more details.

 You should have received a copy of the GNU Affero General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package server.life;

import java.awt.Point;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import database.DatabaseConnection;
import java.util.List;
import tools.Pair;

public class MobSkillFactory {

    private final Map<Pair<Integer, Integer>, MobSkill> mobSkillCache = new HashMap<>();
    private static final MobSkillFactory instance = new MobSkillFactory();

    public MobSkillFactory() {
        initialize();
    }

    public static MobSkillFactory getInstance() {
        return instance;
    }

    public static MobSkill getMobSkill(int skillId, int level) {
        return instance.mobSkillCache.get(new Pair<>(Integer.valueOf(skillId), Integer.valueOf(level)));
    }

    private void initialize() {
        try {
            Connection con = DatabaseConnection.getConnection();
            try (PreparedStatement ps = con.prepareStatement("SELECT * FROM wz_mobskilldata"); ResultSet rs = ps.executeQuery()) {
                while (rs.next()) {
                    mobSkillCache.put(new Pair<>(rs.getInt("skillid"), rs.getInt("level")), get(rs));
                }
            }
        } catch (SQLException e) {
        }
    }

    private MobSkill get(ResultSet rs) throws SQLException {
        List<Integer> toSummon = new ArrayList<>();
        final String[] summs = rs.getString("summons").split(", ");
        if (summs.length <= 0 && rs.getString("summons").length() > 0) {
            toSummon.add(Integer.parseInt(rs.getString("summons")));
        }
        for (String s : summs) {
            if (s.length() > 0) {
                toSummon.add(Integer.parseInt(s));
            }
        }
        Point lt = null;
        Point rb = null;
        //make sure the points exist before adding it
        if (rs.getInt("ltx") != 0 || rs.getInt("lty") != 0 || rs.getInt("rbx") != 0 || rs.getInt("rby") != 0) {
            lt = new Point(rs.getInt("ltx"), rs.getInt("lty"));
            rb = new Point(rs.getInt("rbx"), rs.getInt("rby"));
        }
        final MobSkill ret = new MobSkill(rs.getInt("skillid"), rs.getInt("level"));
        ret.addSummons(toSummon);
        ret.setCoolTime(rs.getInt("interval") * 1000);
        ret.setDuration(rs.getInt("time") * 1000);
        ret.setHp(rs.getInt("hp"));
        ret.setMpCon(rs.getInt("mpcon"));
        ret.setSpawnEffect(rs.getInt("spawneffect"));
        ret.setX(rs.getInt("x"));
        ret.setY(rs.getInt("y"));
        ret.setProp(rs.getInt("prop") / 100f);
        ret.setLimit((short) rs.getInt("limit"));
        ret.setOnce(rs.getByte("once") > 0);
        ret.setLtRb(lt, rb);
        return ret;
    }
}