package com.lxw.test3d.Websocket;

import com.lxw.test3d.Service.Test3DService;
import com.lxw.test3d.config.WebSocketConfig;
import com.lxw.test3d.config.WebSocketEncoder;
import com.lxw.test3d.dto.Response;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpSession;
import javax.websocket.*;
import javax.websocket.server.ServerEndpoint;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;

@Component
@ServerEndpoint(value = "/random", encoders = WebSocketEncoder.class, configurator = WebSocketConfig.class)
public class RandomWebSocket {
    private volatile Thread thread;

    private static final int executeTime = 5000;

    private volatile boolean runFlag = true;

    private volatile Map<String, Thread> threadMap = new HashMap<>();

    private volatile Map<Long, Boolean> threadFlagMap = new HashMap<>();

    private static Test3DService service;


    private Session session;

    private HttpSession httpSession;

    @Autowired
    public void setService(Test3DService service) {
        RandomWebSocket.service = service;
    }


    @OnOpen
    public void onOpen(Session session) {
        this.session = session;
        thread = new Thread("Thread_random") {
            @Override
            public void run() {
                while (runFlag && !isInterrupted()) {
                    Thread thread = currentThread();
                    threadFlagMap.put(thread.getId(), true);
                    try {
                        if (session.isOpen()) {
                            Response response = new Response();
                            try {
                                response=service.getTest3DRandom();
                            }catch (Exception e){
                                response.set(0,"发生异常:"+e.toString());
                            }
                            //推送信息
                            synchronized (session) {
                                session.getBasicRemote().sendObject(response);
                            }
                            threadFlagMap.put(thread.getId(), false);
                        }
                        sleep(executeTime);
                        //} catch (IOException | InterruptedException | EncodeException e) {
                    } catch (Exception e) {
                        interrupt();
                    }
                }
            }
        };
        thread.start();
        threadFlagMap.put(thread.getId(), true);
        //停止老的socket线程
        Thread threadBefore = threadMap.get(session.getId());
        if (threadBefore != null && threadBefore.isAlive()) {
            while (threadFlagMap.get(threadBefore.getId())) {
            }
            threadBefore.interrupt();
        }
        //将线程存储,便于调用定位
        threadMap.put(session.getId(), this.thread);
    }

    @OnMessage
    public void onMessage(Session session, String message) {
    }

    @OnClose
    public void onClose(CloseReason closeReason) {
        System.err.println("closeReason = " + closeReason);
        runFlag = false;
        if (thread != null && thread.isAlive()) {
            thread.interrupt();
        }
        threadMap.remove(session.getId());
    }

    @OnError
    public void onError(Throwable error) {
        error.printStackTrace();
        if (thread != null && thread.isAlive()) {
            thread.interrupt();
        }
        threadMap.remove(session.getId());
    }
}