package com.gkhy.exam.system.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.gkhy.exam.common.api.CommonPage;
import com.gkhy.exam.common.exception.ApiException;
import com.gkhy.exam.common.utils.PageUtils;
import com.gkhy.exam.system.domain.SysCarousel;
import com.gkhy.exam.system.mapper.SysCarouselMapper;
import com.gkhy.exam.system.service.SysCarouselService;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * <p>
 * 轮播图表 服务实现类
 * </p>
 *
 * @author kzy
 * @since 2024-06-05 11:15:14
 */
@Service
public class SysCarouselServiceImpl extends ServiceImpl<SysCarouselMapper, SysCarousel> implements SysCarouselService {

    @Override
    public CommonPage selectCarouselList(SysCarousel carousel) {
        PageUtils.startPage();
        List<SysCarousel> carousels=baseMapper.selectCarouselList(carousel);
        return CommonPage.restPage(carousels);
    }

    @Override
    public SysCarousel selectCarouselById(Long carouselId) {
        return baseMapper.selectCarouselById(carouselId);
    }

    @Override
    public int insertCarousel(SysCarousel carousel) {
        int row= baseMapper.insert(carousel);
        if(row<1){
            throw new ApiException("新增轮播图失败");
        }
        return row;
    }

    @Override
    public int updateCarousel(SysCarousel carousel) {
        int row =baseMapper.updateById(carousel);
        if(row<1){
            throw new ApiException("更新轮播图失败");
        }
        return row;
    }

    @Override
    public int deleteCarouselById(Long carouselId) {
        int row=baseMapper.deleteById(carouselId);
        if(row<1) {
            throw new ApiException("删除轮播图失败");
        }
        return row;
    }
}