package com.gunshi.project.hsz.service;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.IdWorker;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.gunshi.project.hsz.mapper.BroadcastStationMapper;
import com.gunshi.project.hsz.model.BroadcastStation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

/**
 * 描述: 广播预警站
 * author: xusan
 * date: 2024-09-25 10:19:15
 */
@Service
@Slf4j
@Transactional(rollbackFor = Exception.class)
public class BroadcastStationService extends ServiceImpl<BroadcastStationMapper, BroadcastStation>
{

    public BroadcastStation saveData(BroadcastStation dto) {
        dto.setId(IdWorker.getId());
        QueryWrapper<BroadcastStation> queryWrapper = new QueryWrapper<>();
        queryWrapper.orderBy(true, false, "order_index");
        BroadcastStation lastOne = super.getOne(queryWrapper, false);
        int order = 0;
        if (lastOne == null) {
            order = 1;
        } else {
            order = lastOne.getOrderIndex() + 1;
        }
        dto.setOrderIndex(order);
        this.save(dto);
        return dto;
    }
}