package com.fh.plugin.websocketInstantMsg;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import net.sf.json.JSONObject;

import org.java_websocket.WebSocket;
import org.java_websocket.WebSocketImpl;
import org.java_websocket.framing.Framedata;
import org.java_websocket.handshake.ClientHandshake;
import org.java_websocket.server.WebSocketServer;


public class ChatServer extends WebSocketServer{
	
	private List<WebSocket> list = new ArrayList<WebSocket>();

	public ChatServer(int port) throws UnknownHostException {
		super(new InetSocketAddress(port));
	}

	public ChatServer(InetSocketAddress address) {
		super(address);
	}

	/**
	 * 触发连接事件
	 */
	@Override
	public void onOpen( WebSocket conn, ClientHandshake handshake ) {
		//this.sendToAll( "new connection: " + handshake.getResourceDescriptor() );
		//System.out.println("===" + conn.getRemoteSocketAddress().getAddress().getHostAddress());
		list.add(conn);
	}

	/**
	 * 触发关闭事件
	 */
	@Override
	public void onClose( WebSocket conn, int code, String reason, boolean remote ) {
		list.remove(conn);
	}

	/**
	 * 客户端发送消息到服务器时触发事件
	 */
	@Override
	public void onMessage(WebSocket conn, String message){
		for(WebSocket w:list){
			if(w != conn){
				w.send(message);
			}
		}
	}

	public void onFragment( WebSocket conn, Framedata fragment ) {
	}

	/**
	 * 触发异常事件
	 */
	@Override
	public void onError( WebSocket conn, Exception ex ) {
		try{
			conn.close(0);
		}catch(Exception e){}
		list.remove(conn);
	}

	
	/**
	 * 用户加入处理
	 * @param user
	 */
	public void userjoin(String user, WebSocket conn){
		JSONObject result = new JSONObject();
		result.element("type", "user_join");
		result.element("user", "<a onclick=\"toUserMsg('"+user+"');\">"+user+"</a>");
		ChatServerPool.sendMessage(result.toString());				//把当前用户加入到所有在线用户列表中
		String joinMsg = "{\"from\":\"[系统]\",\"content\":\""+user+"上线了\",\"timestamp\":"+new Date().getTime()+",\"type\":\"message\"}";
		ChatServerPool.sendMessage(joinMsg);						//向所有在线用户推送当前用户上线的消息
		result = new JSONObject();
		result.element("type", "get_online_user");
		ChatServerPool.addUser(user,conn);							//向连接池添加当前的连接对象
		result.element("list", ChatServerPool.getOnlineUser());
		ChatServerPool.sendMessageToUser(conn, result.toString());	//向当前连接发送当前在线用户的列表
	}
	
	/**
	 * 用户下线处理
	 * @param user
	 */
	public void userLeave(WebSocket conn){
//		String user = ChatServerPool.getUserByKey(conn);
		boolean b = ChatServerPool.removeUser(conn);				//在连接池中移除连接
//		if(b){
//			JSONObject result = new JSONObject();
//			result.element("type", "user_leave");
//			result.element("user", "<a onclick=\"toUserMsg('"+user+"');\">"+user+"</a>");
//			ChatServerPool.sendMessage(result.toString());			//把当前用户从所有在线用户列表中删除
//			String joinMsg = "{\"from\":\"[系统]\",\"content\":\""+user+"下线了\",\"timestamp\":"+new Date().getTime()+",\"type\":\"message\"}";
//			ChatServerPool.sendMessage(joinMsg);					//向在线用户发送当前用户退出的消息
//		}
	}
	public static void main( String[] args ) throws InterruptedException , IOException {
		WebSocketImpl.DEBUG = false;
		int port = 8887; //端口
		ChatServer s = new ChatServer(port);
		s.start();
		//System.out.println( "服务器的端口" + s.getPort() );
	}

}