package cn.lili.modules.lmk.service.impl;


import cn.lili.base.Result;
import cn.lili.common.enums.ActivityCoverTypeEnum;
import cn.lili.modules.lmk.domain.entity.Activity;
import cn.lili.modules.lmk.domain.entity.MySubscribe;
import cn.lili.modules.lmk.domain.entity.News;
import cn.lili.modules.lmk.domain.form.ActivityForm;
import cn.lili.modules.lmk.domain.form.NewsForm;
import cn.lili.modules.lmk.domain.query.NewsQuery;
import cn.lili.modules.lmk.domain.vo.ActivityVO;
import cn.lili.modules.lmk.domain.vo.NewsVO;
import cn.lili.modules.lmk.mapper.NewsMapper;
import cn.lili.modules.lmk.service.NewsService;
import cn.lili.utils.PageUtil;
import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import org.springframework.util.Assert;

import java.util.*;
import java.util.function.Function;

/**
 * lmk-shop-java
 * 新闻服务实现类
 *
 * @author : zxl
 * @date : 2025-06-20 14:55
 **/
@Service
@RequiredArgsConstructor
public class NewsServiceImpl extends ServiceImpl<NewsMapper, News> implements NewsService {

    private final NewsMapper newsMapper;
    @Override
    public Result add(NewsForm form) {
        News entity = NewsForm.getEntityByForm(form, null);
        baseMapper.insert(entity);
        return Result.ok("添加成功");
    }

    @Override
    public Result update(NewsForm form) {
        News entity = baseMapper.selectById(form.getId());

        Assert.notNull(entity, "记录不存在");
        BeanUtils.copyProperties(form, entity);

        baseMapper.updateById(entity);


        return Result.ok("修改成功");
    }

    @Override
    public Result remove(List<String> ids) {
        for (String id : ids) {
            if (isPublishNews(id)){
                return Result.error("存在新闻已发布删除前请下架该新闻！");
            }
        }

        baseMapper.deleteBatchIds(ids);
        return Result.ok("删除成功");
    }
    public Boolean isPublishNews(String id){
        News entity = baseMapper.selectById(id);
        return entity.getPublish();
    }
    @Override
    public Result removeById(String id) {
        //判断是否发布发布则提示先下架，再删除
        if(isPublishNews(id)){
            return Result.error("该新闻已发布删除前请下架该新闻！");
        }

        baseMapper.deleteById(id);
        return Result.ok("删除成功");
    }

    @Override
    public Result page(NewsQuery query) {
        IPage<NewsVO> page = PageUtil.getPage(query, NewsVO.class);

        baseMapper.getPage(page, query);

        return Result.ok().data(page.getRecords()).total(page.getTotal());
    }

    @Override
    public Result detail(String id) {
        NewsVO vo = baseMapper.getById(id);
        Assert.notNull(vo, "记录不存在");
        return Result.ok().data(vo);
    }

    @Override
    public Result publish(String id) {
        News entity = baseMapper.selectById(id);
        if (!entity.getPublish()) {
            entity.setPublishDate(new Date());
        }else {
            entity.setPublishDate(null);
        }
        entity.setPublish(!entity.getPublish());
        baseMapper.updateById(entity);
        return Result.ok("成功");
    }


}