package com.mes.mechanicalMonitor.service.impl;

import cn.hutool.json.JSONObject;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.mes.mechanicalMonitor.entity.MechanicalMonitor;
import com.mes.mechanicalMonitor.mapper.MechanicalMonitorMapper;
import com.mes.mechanicalMonitor.service.MechanicalMonitorService;
import com.mes.websocket.WebSocketServer;
import org.springframework.stereotype.Service;

import java.util.Date;
import java.util.List;

@Service
public class MechanicalMonitorServiceImpl extends ServiceImpl<MechanicalMonitorMapper, MechanicalMonitor> 
    implements MechanicalMonitorService {

    @Override
    public List<MechanicalMonitor> getAllDeviceStatus() {
        return this.list();
    }

    @Override
    public void updateDeviceStatus(String deviceId, Integer status, String alarmInfo) {
        MechanicalMonitor monitor = this.lambdaQuery()
            .eq(MechanicalMonitor::getDeviceId, deviceId)
            .one();
            
        if (monitor == null) {
            monitor = new MechanicalMonitor();
            monitor.setDeviceId(deviceId);
        }
        
        monitor.setStatus(status);
        monitor.setAlarmInfo(alarmInfo);
        
        if (status == 2) { // 故障状态
            monitor.setAlarmTime(new Date());
        } else if (status == 0) { // 未连接状态
            monitor.setDisconnectTime(new Date());
        }
        
        this.saveOrUpdate(monitor);
        
        // 通知状态变化
        notifyStatusChange(monitor);
    }

    @Override
    public void notifyStatusChange(MechanicalMonitor monitor) {
        JSONObject message = new JSONObject();
        message.set("type", "status_change");
        message.set("data", monitor);
        
        List<WebSocketServer> servers = WebSocketServer.SESSIONMAP.get("mechanicalMonitor");
        if (servers != null) {
            for (WebSocketServer server : servers) {
                server.sendToWeb("",message.toString());
            }
        }
    }
}