package com.nanjing.water.host.mqtt;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;

import javax.websocket.OnClose;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpoint;
import java.util.concurrent.CopyOnWriteArraySet;

@Component
@ServerEndpoint("/webSocket")
@Order(3)
public class WebSocket {
    private static final Logger log = LoggerFactory.getLogger(WebSocket.class);

    private Session session;

    private static CopyOnWriteArraySet<WebSocket> webSocketSet=new CopyOnWriteArraySet<>();

    @OnOpen
    public void onOpen(Session session){
        this.session=session;
        webSocketSet.add(this);
        log.info("【websocket消息】 有新的连接，总数：{}",webSocketSet.size());
    }

    @OnClose
    public void onClose(){
        webSocketSet.remove(this);
        log.info("【websocket消息】 连接断开，总数：{}",webSocketSet.size());
    }

    @OnMessage
    public void onMessage(String message){
        log.info("【websocket消息】 收到客户端发来的消息：{}",message);
    }

    public static void sendMessage(String message){
        for(WebSocket webSocket:webSocketSet){
            log.info("【websocket消息】 广播消息，message={}",message);
            try {
                webSocket.session.getBasicRemote().sendText(message);
            }catch (Exception e){
                e.printStackTrace();
            }
        }
    }

}