package com.web.jhsop.websocket.util;



import com.web.jhsop.websocket.config.WebSocketConfig;
import com.web.jhsop.websocket.dao.SopDeviceDao;
import com.web.jhsop.websocket.dao.SopFileDao;
import com.web.jhsop.websocket.entity.SopDevice;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.stereotype.Component;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;

import javax.websocket.*;
import javax.websocket.server.PathParam;
import java.util.Date;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArraySet;

@ConditionalOnClass(value = WebSocketConfig.class)
@Component
//开发时候注释，打包时放出来
//@ServerEndpoint("/websocket/{deviceId}")  // 接口路径 ws://localhost:9999/webSocket/deviceId;
public class WebSocketUtil {

    protected Logger logger = LoggerFactory.getLogger(this.getClass());

    private static SopDeviceDao sopDeviceDao;

    private static SopFileDao sopFileDao;

    @Autowired
    public void setSopDeviceDao(SopDeviceDao sopDeviceDao){
        WebSocketUtil.sopDeviceDao = sopDeviceDao;
    }

    @Autowired
    public void setSopFileDao(SopFileDao sopFileDao){
        WebSocketUtil.sopFileDao = sopFileDao;
    }

    //与某个客户端的连接会话，需要通过它来给客户端发送数据
    private Session session;
    /**
     * 设备ID
     */
    private String deviceId;

    //concurrent包的线程安全Set，用来存放每个客户端对应的MyWebSocket对象。
    //虽然@Component默认是单例模式的，但springboot还是会为每个websocket连接初始化一个bean，所以可以用一个静态set保存起来。
    //  注：底下WebSocket是当前类名
    private static CopyOnWriteArraySet<WebSocketUtil> webSockets =new CopyOnWriteArraySet<>();
    // 用来存在线连接用户信息
    private static ConcurrentHashMap<String,Session> sessionPool = new ConcurrentHashMap<String,Session>();

    /**
     * 链接成功调用的方法
     */
    @OnOpen
    public void onOpen(Session session, @PathParam(value="deviceId")String deviceId) {
        try {
            if(StringUtils.isEmpty(deviceId)||deviceId.equals("undefined")){
                return;
            }
            if(deviceId.length() <= 12){
                //12位组成 则为设备唯一码 否则则是翻页功能中发起的socket连接
                List<SopDevice>  list = sopDeviceDao.findByBsDevice(deviceId);
                if(CollectionUtils.isEmpty(list)){
                    SopDevice sopDevice = new SopDevice();
                    sopDevice.setBsDevice(deviceId);
                    sopDevice.setCreatedTime(new Date());
                    sopDeviceDao.save(sopDevice);
                }
            }

            this.session = session;
            this.deviceId = deviceId;
            webSockets.add(this);
            sessionPool.put(deviceId, session);
            logger.info("【websocket消息】有新的连接，总数为:"+webSockets.size());
        } catch (Exception e) {
        }
    }

    /**
     * 链接关闭调用的方法
     */
    @OnClose
    public void onClose() {
        try {
            webSockets.remove(this);
            sessionPool.remove(this.deviceId);
            logger.info("【websocket消息】连接断开，总数为:"+webSockets.size());
        } catch (Exception e) {
        }
    }
    /**
     * 收到客户端消息后调用的方法
     *
     * @param message
     */
    @OnMessage
    public void onMessage(String message) {
        logger.info("【websocket消息】收到客户端消息:"+message);
    }

    /** 发送错误时的处理
     * @param session
     * @param error
     */
    @OnError
    public void onError(Session session, Throwable error) {

        logger.error("用户错误,原因:"+error.getMessage());
        error.printStackTrace();
    }



    // 此为广播消息
    public void sendAllMessage(String message) {
        logger.info("【websocket消息】广播消息:"+message);
        for(WebSocketUtil webSocket : webSockets) {
            try {
                if(webSocket.session.isOpen()) {
                    webSocket.session.getAsyncRemote().sendText(message);
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }


    // 此为单点消息
    public void sendOneMessage(String deviceId, String message) {
        Session session = sessionPool.get(deviceId);
        if (session != null&&session.isOpen()) {
            try {
                logger.info("【websocket消息】 单点消息:"+message);
                session.getAsyncRemote().sendText(message);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    // 此为单点消息
    public void sendOneObject(String deviceId, Object object) {
        Session session = sessionPool.get(deviceId);
        if (session != null&&session.isOpen()) {
            try {
                logger.info("【websocket消息】 单点消息(对象):"+object);
                session.getAsyncRemote().sendObject(object);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    // 此为单点消息(多人)
    public void sendMoreMessage(String[] deviceIds, String message) {
        for(String deviceId:deviceIds) {
            Session session = sessionPool.get(deviceId);
            if (session != null&&session.isOpen()) {
                try {
                    logger.info("【websocket消息】 单点消息:"+message);
                    session.getAsyncRemote().sendText(message);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }

    }

}