/*
 * 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 silentium.gameserver.network.serverpackets;

import java.util.List;

import javolution.util.FastList;
import silentium.gameserver.model.L2World;
import silentium.gameserver.model.actor.instance.L2PcInstance;
import silentium.gameserver.tables.CharNameTable;

/**
 * Support for "Chat with Friends" dialog. Format: ch (hdSdh) h: Total Friend Count h: Unknown d: Player Object ID S: Friend Name d:
 * Online/Offline h: Unknown
 * 
 * @author Tempy
 */
public class FriendList extends L2GameServerPacket
{
	private final List<FriendInfo> _info;

	private static class FriendInfo
	{
		int _objId;
		String _name;
		boolean _online;

		public FriendInfo(int objId, String name, boolean online)
		{
			_objId = objId;
			_name = name;
			_online = online;
		}
	}

	public FriendList(L2PcInstance player)
	{
		_info = new FastList<>(player.getFriendList().size());

		for (int objId : player.getFriendList())
		{
			String name = CharNameTable.getInstance().getNameById(objId);
			L2PcInstance player1 = L2World.getInstance().getPlayer(objId);
			boolean online = false;

			if (player1 != null && player1.isOnline())
				online = true;

			_info.add(new FriendInfo(objId, name, online));
		}
	}

	@Override
	protected final void writeImpl()
	{
		writeC(0xfa);
		writeD(_info.size());
		for (FriendInfo info : _info)
		{
			writeD(info._objId); // character id
			writeS(info._name);
			writeD(info._online ? 0x01 : 0x00); // online
		}
	}
}