package com.whyc.webSocket;

import com.whyc.dto.Response;
import com.whyc.factory.ThreadPoolExecutorFactory;
import com.whyc.service.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.websocket.*;
import javax.websocket.server.ServerEndpoint;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

/**
 * packageName com.whyc.websocket
 *
 * @author lxw
 * @version JDK 8
 * @className BattSocket (此处以class为例)
 * @date 2024/6/15
 * @description
 */
@Component
@ServerEndpoint(value = "/batt", encoders = WebSocketEncoder.class)
public class BattSocket {
    private Session session;

    private Thread thread;

    private volatile boolean runFlag = true;

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


    private static final int executeTime = 5000;

    private static RtStateService rtStateService;

    private static RtDataService rtDataService;

    private static BattAlarmService battAlarmService;

    private static RtEnvirmentService rtEnvirmentService;

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


    @Autowired
    public void setRtStateService(RtStateService rtStateService) {
        BattSocket.rtStateService = rtStateService;
    }

    @Autowired
    public void setRtDataService(RtDataService rtDataService) {
        BattSocket.rtDataService = rtDataService;
    }

    @Autowired
    public void setBattAlarmService(BattAlarmService battAlarmService) {
        BattSocket.battAlarmService = battAlarmService;
    }

    @Autowired
    public void setRtEnvirmentService(RtEnvirmentService rtEnvirmentService) {
        BattSocket.rtEnvirmentService = rtEnvirmentService;
    }

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

    @OnMessage
    public void onMessage(Session session, String message) {
        int binfId=Integer.valueOf(message);
        thread = new Thread("Thread_BattSocket") {
            @Override
            public void run() {
                Map<String, Object> res = new HashMap<>();
                while (runFlag && !isInterrupted()) {
                    Thread thread = currentThread();
                    threadFlagMap.put(thread.getId(), true);
                    try {
                        ThreadPoolExecutor poolExecutor = ThreadPoolExecutorFactory.getPoolExecutor();
                        CountDownLatch latch = new CountDownLatch(4);
                        poolExecutor.execute(() -> {
                            Response resRtState = rtStateService.getResRtState(binfId);
                            res.put("resRtState", resRtState);
                            latch.countDown();
                        });
                        poolExecutor.execute(() -> {
                            Response resRtData = rtDataService.getResRtData(binfId);
                            res.put("resRtData", resRtData);
                            latch.countDown();
                        });
                        poolExecutor.execute(() -> {
                            Response resBattAlm = battAlarmService.getResBattAlm(binfId);
                            res.put("resBattAlm", resBattAlm);
                            latch.countDown();
                        });
                        poolExecutor.execute(() -> {
                            Response resRtEnvir = rtEnvirmentService.getResRtEnvir();
                            res.put("resRtEnvir", resRtEnvir);
                            latch.countDown();
                        });
                        latch.await(10, TimeUnit.MINUTES);
                        if (session.isOpen()) {
                            //推送信息
                            synchronized (session) {
                                session.getBasicRemote().sendObject(new Response().set(1, res));
                            }
                            threadFlagMap.put(thread.getId(), false);
                        }
                        sleep(executeTime);
                    } 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);
    }

    @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());
    }
}