package com.moral.api.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.moral.api.entity.Sensor;
import com.moral.api.mapper.SensorMapper;
import com.moral.api.service.SensorService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.moral.constant.Constants;
import com.moral.constant.RedisConstants;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author moral
 * @since 2021-06-28
 */
@Service
public class SensorServiceImpl extends ServiceImpl<SensorMapper, Sensor> implements SensorService {

    @Autowired
    SensorMapper sensorMapper;
    @Autowired
    RedisTemplate redisTemplate;

    @Override
    public Sensor getSensorByCode(String code) {
        Sensor sensor = (Sensor) redisTemplate.opsForHash().get(RedisConstants.SENSOR_KEY, code);
        if(sensor==null)
            sensor = getSensorByCodeFromDb(code);
        return sensor;
    }


    private Sensor getSensorByCodeFromDb(String code) {
        QueryWrapper<Sensor> wrapper = new QueryWrapper<>();
        wrapper.eq("code",code);
        wrapper.eq("is_delete", Constants.NOT_DELETE);
        Sensor sensor = sensorMapper.selectOne(wrapper);
        redisTemplate.opsForHash().put(RedisConstants.SENSOR_KEY, code,sensor);
        return sensor;
    }
}