/*
* LumaQQ - Java QQ Client
*
* Copyright (C) 2004 luma <stubma@163.com>
*
* 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 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package edu.tsinghua.lumaqq.qq.packets.in;

import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;

import edu.tsinghua.lumaqq.qq.PacketParseException;
import edu.tsinghua.lumaqq.qq.beans.OnlineUser;
import edu.tsinghua.lumaqq.qq.packets.InPacket;

/**
 * <pre>
 * 搜索在線用戶的回復包，格式為
 * 1. 頭部
 * 2. 有兩種形式
 *    第一種為搜索到了用戶
 * 	  以0x1F相隔的用戶數據，其中，一個用戶的數據分4個域，域之間用0x1E相隔，四個域為
 * 	  i.   用戶QQ號的字符串形式
 *    ii.  用戶昵稱
 *    iii. 用戶所在地區
 *    iv.  用戶的頭像號碼
 *    第二種是沒有更多的匹配了，表示本次搜索的全部匹配已取得
 *    i. 兩個固定字節: 0x2D, 0x31
 * 3. 尾部
 * </pre>
 * 
 * @author 馬若劼
 */
public class SearchUserReplyPacket extends InPacket {
	public List onlineUsers;
	public boolean finished;
	
    /**
     * 構造函數
     * @param buf 緩沖區
     * @param length 包長度
     * @throws PacketParseException 解析錯誤
     */
    public SearchUserReplyPacket(ByteBuffer buf, int length) throws PacketParseException {
        super(buf, length);       
    }   
	
    /* (non-Javadoc)
     * @see edu.tsinghua.lumaqq.qq.packets.InPacket#parseBody(java.nio.ByteBuffer)
     */
    protected void parseBody(ByteBuffer buf) throws PacketParseException {
    	// 判斷搜索是否已經結束
    	if(!buf.hasRemaining() || buf.get() == 0x2D && buf.get() == 0x31) {
    		finished = true;
    		return;
    	}
    	buf.rewind();
        // 只要還有數據就繼續讀取下一個friend結構
    	onlineUsers = new ArrayList();
        while(buf.hasRemaining()) {
        	OnlineUser onlineUser = new OnlineUser();
            onlineUser.readBean(buf);
            
            // 添加到list
            onlineUsers.add(onlineUser);
        }
    }
}