package com.whyc.webSocket;

import com.whyc.config.WebSocketConfig;
import com.whyc.dto.Response;
import com.whyc.service.LoginService;
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.io.IOException;
import java.util.HashMap;
import java.util.Map;

/**
 * 账号重复登录检查
 */
@Component
@ServerEndpoint(value = "/loginCheck",encoders = WebSocketEncoder.class,configurator = WebSocketConfig.class)
public class LoginCheckSocket {

    private Session session;

    private Thread thread;
    private static LoginService loginService;

    @Autowired
    public void setLoginService(LoginService loginService) {
        LoginCheckSocket.loginService = loginService;
    }

    @OnOpen
    public void onOpen(Session session, EndpointConfig config){
        this.session = session;
        HttpSession httpSession = (HttpSession) config.getUserProperties().get("httpSession");
        if(httpSession == null){
            Map<String, Response> res = new HashMap<>();
            Response resp1 = new Response().set(1, false, "登录信息失效,重新登录");
            res.put("checkLogin", resp1);
            try {
                session.getBasicRemote().sendObject(new Response().set(1,res));
            } catch (IOException | EncodeException e) {
                e.printStackTrace();
            }
        }else {
            Thread thread = new Thread() {
                @Override
                public void run() {
                    try {
                        Map<String, Response> res = new HashMap<>();
                        Response sessionRes = new Response().set(1, httpSession.getId());
                        while (!currentThread().isInterrupted()) {
                            Response response = loginService.checkUserWebSocket(httpSession);
                            res.put("checkLogin", response);
                            res.put("session", sessionRes);
                            session.getBasicRemote().sendObject(new Response().set(1, res));
                            if (response.getData() instanceof Boolean) {
                                if(response.getData().equals(false)) {
                                    this.interrupt();
                                }
                            }
                            sleep(4000);
                        }
                    } catch (Exception e) {
                        this.interrupt();
                    }
                }
            };
            thread.start();
            this.thread = thread;
        }
    }

    @OnClose
    public void onClose(CloseReason closeReason) throws IOException {
        System.err.println("closeReason = " + closeReason);
        if(session.isOpen()){
            session.close();
        }
    }

    @OnError
    public void onError(Throwable error) throws IOException {
        error.printStackTrace();
        thread.isInterrupted();
        if(session.isOpen()){
            session.close();
        }
    }

}