package com.nova.sankuai.service.impl;

import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.nova.sankuai.domain.entity.HotCity;
import com.nova.sankuai.infra.config.CommonException;
import com.nova.sankuai.infra.mapper.HotCityMapper;
import com.nova.sankuai.infra.utils.PageRequest;
import com.nova.sankuai.service.IHotCityService;
import lombok.AllArgsConstructor;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * @author weikangdi
 * @create 2021/11/3
 */
@Service
@AllArgsConstructor
public class HotCityServiceImpl extends ServiceImpl<HotCityMapper, HotCity> implements IHotCityService {

    private final HotCityMapper hotCityMapper;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void saveHotCity(HotCity hotCity) {
        HotCity city = lambdaQuery().eq(HotCity::getCityId, hotCity.getCityId()).one();
        if (city != null && !city.getId().equals(hotCity.getId())) {
            throw new CommonException("该城市已经被设置为热门城市");
        }
        saveOrUpdate(hotCity);
    }

    @Override
    public List<HotCity> getHotCities() {
        List<HotCity> hotCities = hotCityMapper.getHotCities();
        return hotCities;
    }

    @Override
    public IPage<HotCity> pageHotCities(PageRequest pageRequest) {
        Page<HotCity> page = new Page<>(pageRequest.getPageNo(), pageRequest.getPageSize());
        IPage<HotCity> result = hotCityMapper.pageModel(page);
        return result;
    }

    @Override
    public void invalidHotCity(Long id, Integer status) {
        HotCity hotCity = getById(id);
        if (hotCity == null) {
            throw new CommonException("该热门城市不存在");
        }
        hotCity.setEnableFlag(status);
        updateById(hotCity);
    }
}