/*
 * 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;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.logging.Level;
import java.util.logging.Logger;

import net.sf.l2j.L2DatabaseFactory;
import net.sf.l2j.gameserver.model.L2Macro.L2MacroCmd;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.network.serverpackets.SendMacroList;
import net.sf.l2j.util.StringUtil;

public class MacroList
{
	private static Logger _log = Logger.getLogger(MacroList.class.getName());
	
	private final L2PcInstance _owner;
	private int _revision;
	private int _macroId;
	private final Map<Integer, L2Macro> _macroses = new HashMap<>();
	
	public MacroList(L2PcInstance owner)
	{
		_owner = owner;
		_revision = 1;
		_macroId = 1000;
	}
	
	public int getRevision()
	{
		return _revision;
	}
	
	public L2Macro[] getAllMacroses()
	{
		return _macroses.values().toArray(new L2Macro[_macroses.size()]);
	}
	
	public L2Macro getMacro(int id)
	{
		return _macroses.get(id - 1);
	}
	
	public void registerMacro(L2Macro macro)
	{
		if (macro.id == 0)
		{
			macro.id = _macroId++;
			
			while (_macroses.get(macro.id) != null)
				macro.id = _macroId++;
			
			_macroses.put(macro.id, macro);
			registerMacroInDb(macro);
		}
		else
		{
			final L2Macro old = _macroses.put(macro.id, macro);
			if (old != null)
				deleteMacroFromDb(old);
			
			registerMacroInDb(macro);
		}
		sendUpdate();
	}
	
	public void deleteMacro(int id)
	{
		final L2Macro toRemove = _macroses.get(id);
		if (toRemove != null)
			deleteMacroFromDb(toRemove);
		
		_macroses.remove(id);
		
		final L2ShortCut[] allShortCuts = _owner.getAllShortCuts();
		for (L2ShortCut sc : allShortCuts)
		{
			if (sc.getId() == id && sc.getType() == L2ShortCut.TYPE_MACRO)
				_owner.deleteShortCut(sc.getSlot(), sc.getPage());
		}
		
		sendUpdate();
	}
	
	public void sendUpdate()
	{
		_revision++;
		final L2Macro[] all = getAllMacroses();
		
		if (all.length == 0)
			_owner.sendPacket(new SendMacroList(_revision, all.length, null));
		else
		{
			for (L2Macro m : all)
				_owner.sendPacket(new SendMacroList(_revision, all.length, m));
		}
	}
	
	private void registerMacroInDb(L2Macro macro)
	{
		try (Connection con = L2DatabaseFactory.getInstance().getConnection())
		{
			PreparedStatement statement = con.prepareStatement("INSERT INTO character_macroses (char_obj_id,id,icon,name,descr,acronym,commands) values(?,?,?,?,?,?,?)");
			statement.setInt(1, _owner.getObjectId());
			statement.setInt(2, macro.id);
			statement.setInt(3, macro.icon);
			statement.setString(4, macro.name);
			statement.setString(5, macro.descr);
			statement.setString(6, macro.acronym);
			
			final StringBuilder sb = new StringBuilder(300);
			for (L2MacroCmd cmd : macro.commands)
			{
				StringUtil.append(sb, String.valueOf(cmd.type), ",", String.valueOf(cmd.d1), ",", String.valueOf(cmd.d2));
				if (cmd.cmd != null && cmd.cmd.length() > 0)
					StringUtil.append(sb, ",", cmd.cmd);
				
				sb.append(';');
			}
			
			if (sb.length() > 255)
				sb.setLength(255);
			
			statement.setString(7, sb.toString());
			statement.execute();
			statement.close();
		}
		catch (Exception e)
		{
			_log.log(Level.WARNING, "could not store macro:", e);
		}
	}
	
	private void deleteMacroFromDb(L2Macro macro)
	{
		try (Connection con = L2DatabaseFactory.getInstance().getConnection())
		{
			PreparedStatement statement = con.prepareStatement("DELETE FROM character_macroses WHERE char_obj_id=? AND id=?");
			statement.setInt(1, _owner.getObjectId());
			statement.setInt(2, macro.id);
			statement.execute();
			statement.close();
		}
		catch (Exception e)
		{
			_log.log(Level.WARNING, "could not delete macro:", e);
		}
	}
	
	public void restore()
	{
		_macroses.clear();
		
		try (Connection con = L2DatabaseFactory.getInstance().getConnection())
		{
			PreparedStatement statement = con.prepareStatement("SELECT char_obj_id, id, icon, name, descr, acronym, commands FROM character_macroses WHERE char_obj_id=?");
			statement.setInt(1, _owner.getObjectId());
			ResultSet rset = statement.executeQuery();
			while (rset.next())
			{
				int id = rset.getInt("id");
				int icon = rset.getInt("icon");
				String name = rset.getString("name");
				String descr = rset.getString("descr");
				String acronym = rset.getString("acronym");
				
				List<L2MacroCmd> commands = new ArrayList<>();
				StringTokenizer st1 = new StringTokenizer(rset.getString("commands"), ";");
				
				while (st1.hasMoreTokens())
				{
					StringTokenizer st = new StringTokenizer(st1.nextToken(), ",");
					if (st.countTokens() < 3)
						continue;
					
					int type = Integer.parseInt(st.nextToken());
					int d1 = Integer.parseInt(st.nextToken());
					int d2 = Integer.parseInt(st.nextToken());
					
					String cmd = "";
					if (st.hasMoreTokens())
						cmd = st.nextToken();
					
					L2MacroCmd mcmd = new L2MacroCmd(commands.size(), type, d1, d2, cmd);
					commands.add(mcmd);
				}
				
				L2Macro m = new L2Macro(id, icon, name, descr, acronym, commands.toArray(new L2MacroCmd[commands.size()]));
				_macroses.put(m.id, m);
			}
			rset.close();
			statement.close();
		}
		catch (Exception e)
		{
			_log.log(Level.WARNING, "could not store shortcuts:", e);
		}
	}
}