package com.ruoyi.utils.websocket.service;

import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONArray;
import com.alibaba.fastjson2.JSONException;
import com.alibaba.fastjson2.JSONObject;
import com.ruoyi.app.position.service.impl.AppPositionPushService;
import com.ruoyi.call.dto.CallMessage;
import com.ruoyi.call.listener.WebsocketHandler;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.utils.websocket.util.WebSocketUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import javax.websocket.*;
import javax.websocket.server.PathParam;
import javax.websocket.server.ServerEndpoint;
import java.io.IOException;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import static com.ruoyi.utils.websocket.util.WebSocketUtils.ONLINE_USER_SESSIONS;

/**
 * @ClassName ChatServerEndpoint
 * @Description: websocket操作类
 * @Author 刘苏义
 * @Date 2023/1/27 7:42
 * @Version 1.0
 */

@Component
@Slf4j(topic = "websocket")
@ServerEndpoint("/websocket/{userId}")
public class ChatServerEndpoint {
    @OnOpen
    public void openSession(@PathParam("userId") String userId, Session session) {
        WebSocketUtils.ONLINE_USER_SESSIONS.put(userId, session);
        String message = "用户[" + userId + "] 成功连接！";
        log.info("用户登录：" + message);
        WebSocketUtils.sendMessage(session, message);
    }

    @OnMessage
    public void onMessage(@PathParam("userId") String userId, String message) {
        log.debug("收到消息：" + message);
        try {
            if(isValidJson(message)) {
                // 处理视频通话消息
                WebsocketHandler.handleMessage(userId, message);
                // 根据用户新的频率重新调整定时任务
                AppPositionPushService.messageHandler(userId, message);
            } else {
                // 处理其他消息
                WebSocketUtils.sendMessage(userId,"Received an invalid JSON message："+message);
            }
        } catch (Exception ex) {
            WebSocketUtils.sendMessage(userId, "无法解析消息【" + message + "】:" + ex.getMessage());
        }
    }

    @OnClose
    public void onClose(@PathParam("userId") String userId, Session session) {
        //当前的Session 移除
        WebSocketUtils.ONLINE_USER_SESSIONS.remove(userId);
        String message = "用户[" + userId + "] 断开连接！";
        log.info("消息：" + message);
        //从房间中移除用户
        WebSocketUtils.ROOM_USER_SET.values().stream().forEach(userSet -> userSet.remove(userId));
        try {
            session.close();
            AppPositionPushService.stopHandler(userId);
        } catch (IOException e) {
            log.error("onClose error", e);
        }
    }

    @OnError
    public void onError(Session session, Throwable throwable) {
        try {
            session.close();
        } catch (IOException e) {
            log.error("onError excepiton", e);
        }
        log.info("Throwable msg " + throwable.getMessage());
    }

    /**
     * 检查给定的字符串是否为有效的JSON格式。
     *
     * @param message 要检查的字符串
     * @return 如果是有效的JSON字符串，返回true；否则返回false。
     */
    public static boolean isValidJson(String message) {
        try {
            Object json = JSON.parse(message);
            // 确保解析结果是JSONObject或JSONArray类型
            return (json instanceof JSONObject || json instanceof JSONArray);
        } catch (JSONException e) {
            return false;  // 解析失败，说明不是合法的JSON
        }
    }
}