package com.zy.asrs.wcs.rcs.ws;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.zy.asrs.framework.common.R;
import com.zy.asrs.framework.common.SpringUtils;
import com.zy.asrs.wcs.common.config.ConfigProperties;
import com.zy.asrs.wcs.common.security.JwtSubject;
import com.zy.asrs.wcs.rcs.model.protocol.ShuttleProtocol;
import com.zy.asrs.wcs.rcs.service.ShuttleService;
import com.zy.asrs.wcs.rcs.ws.model.WebSocketMessage;
import com.zy.asrs.wcs.utils.JwtUtil;
import io.jsonwebtoken.Claims;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import javax.websocket.*;
import javax.websocket.server.ServerEndpoint;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.CopyOnWriteArraySet;

@Component
@Slf4j
@Service
@ServerEndpoint("/ws/shuttle/websocket")
@Data
public class ShuttleWebSocket {

    //客户端在线人数
    private static int onlineClient = 0;

    //客户端池
    private static CopyOnWriteArraySet<ShuttleWebSocket> webSocketServers = new CopyOnWriteArraySet<>();

    private Session session;

    private String username;

    private Long hostId;

    //管道ID
    private String sessionId;

    @OnOpen
    public void onOpen(Session session) {
        this.session = session;
        this.sessionId = session.getId();

        //将websocket对象进行保存
        webSocketServers.add(this);
        //添加在线人数
        addOnlineClient();
        log.info("有新窗口开始监听:" + session.getId() + ",当前在线人数为:" + getOnlineClient());
    }

    /**
     * 连接关闭调用的方法
     */
    @OnClose
    public void onClose() {
        webSocketServers.remove(this);  //从set中删除
        subOnlineClient();           //在线数减1
        log.info("关闭的连接：" + sessionId);
        log.info("有一连接关闭！当前在线人数为" + getOnlineClient());
    }

    /**
     * 收到客户端消息后调用的方法
     * @ Param message 客户端发送过来的消息
     */
    @OnMessage
    public void onMessage(String message, Session session) throws IOException {
        ShuttleService shuttleService = SpringUtils.getBean(ShuttleService.class);
        WebSocketMessage socketMessage = JSON.parseObject(message, WebSocketMessage.class);
        if (socketMessage.getUrl().equals("login")) {
            try {
                // 解析token
                ConfigProperties configProperties = SpringUtils.getBean(ConfigProperties.class);
                JSONObject data = JSON.parseObject(socketMessage.getData());
                Claims claims = JwtUtil.parseToken(data.getString("token"), configProperties.getTokenKey());
                JwtSubject jwtSubject = JwtUtil.getJwtSubject(claims);
                this.username = jwtSubject.getUsername();
                this.hostId = jwtSubject.getHostId();
                socketMessage.setData(JSON.toJSONString(R.ok("auth success")));
            } catch (Exception e) {
                e.printStackTrace();
                socketMessage.setData(JSON.toJSONString(R.error("auth fail")));
            }
            this.sendMessage(JSON.toJSONString(socketMessage));
        } else if (socketMessage.getUrl().equals("/shuttle/status/list")) {
            if (this.hostId != null) {
                List<ShuttleProtocol> data = shuttleService.getShuttleStatusList(this.hostId);
                socketMessage.setData(JSON.toJSONString(data));
                this.sendMessage(JSON.toJSONString(socketMessage));
            }
        }
//        log.info("收到来自连接：" + sessionId + "的信息:" + message);
    }

    /**
     * @ Param session
     * @ Param error
     */
    @OnError
    public void onError(Session session, Throwable error) {
        log.error("发生错误");
        error.printStackTrace();
    }

    /**
     * 实现服务器主动推送
     */
    public void sendMessage(String message) throws IOException {
        this.session.getBasicRemote().sendText(message);
    }

    /**
     * 服务器主动推送给指定用户
     */
    public void sendMessage(String message, String account) throws IOException {
        for (ShuttleWebSocket item : webSocketServers) {
            item.sendMessage(message);
        }
    }

    public void sendMessage(String message, int userId) throws IOException {
        for (ShuttleWebSocket item : webSocketServers) {
            item.sendMessage(message);
        }
    }

    /**
     * 服务器主动推送给指定用户
     */
    public static boolean sendMessageGlobal(String message, String account) throws IOException {
        boolean tag = false;
        for (ShuttleWebSocket item : webSocketServers) {
            tag = true;
            item.sendMessage(message);
        }
        return tag;
    }

    public static boolean sendMessageGlobal(String message, int userId) throws IOException {
        boolean tag = false;
        for (ShuttleWebSocket item : webSocketServers) {
            tag = true;
            item.sendMessage(message);
        }
        return tag;
    }

    public static synchronized int getOnlineClient() {
        return onlineClient;
    }

    public static synchronized void addOnlineClient() {
        ShuttleWebSocket.onlineClient++;
    }

    public static synchronized void subOnlineClient() {
        if (ShuttleWebSocket.onlineClient > 0) {
            ShuttleWebSocket.onlineClient--;
        }
    }

}