package com.gszc.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.baomidou.mybatisplus.plugins.Page;
import com.gszc.entity.Banner;
import com.gszc.entity.Banner;
import com.gszc.mapper.BannerMapper;
import com.gszc.service.IBannerService;
import com.baomidou.mybatisplus.service.impl.ServiceImpl;
import com.gszc.util.Uuid8Utils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

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

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author ky
 * @since 2020-05-25
 */
@Service
@Transactional
public class BannerServiceImpl extends ServiceImpl<BannerMapper, Banner> implements IBannerService {

    @Autowired
    BannerMapper bannerMapper;

    public void addBanner(Banner banner){
        String id = UUID.randomUUID().toString();
        banner.setId(id);
        banner.setCreateDate(new Date());
        banner.setModifyDate(new Date());
        bannerMapper.insert(banner);
    }

    public void deleteBanner(Banner banner){
        bannerMapper.deleteById(banner);
    }

    public void updateBanner(Banner banner){
        bannerMapper.updateById(banner);
    }

    public JSONObject queryBanner(Integer pageNum, Integer pageSize){

        Integer count = bannerMapper.selectCount(new EntityWrapper<Banner>());
        List<Banner> result = bannerMapper.selectPage(new Page<>((pageNum - 1) * pageSize, pageSize), new EntityWrapper<Banner>().eq("1", "1").orderBy("ix", true));
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("count",count);
        jsonObject.put("data",result);
        return jsonObject;
    }
	
}