package com.mzl.flower.service.content;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.mzl.flower.config.exception.ValidationException;
import com.mzl.flower.config.security.SecurityUtils;
import com.mzl.flower.constant.Constants;
import com.mzl.flower.dto.BatchDTO;
import com.mzl.flower.dto.request.content.QueryAnnouncementDTO;
import com.mzl.flower.dto.request.content.QueryBannerDTO;
import com.mzl.flower.dto.response.content.AnnouncementDTO;
import com.mzl.flower.dto.response.content.BannerDTO;
import com.mzl.flower.entity.content.Announcement;
import com.mzl.flower.entity.content.Banner;
import com.mzl.flower.mapper.content.BannerMapper;
import com.mzl.flower.utils.DateUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.time.LocalDate;
import java.util.List;

@Service
@Transactional
public class BannerService {

    private final BannerMapper bannerMapper;

    public BannerService(BannerMapper bannerMapper) {
        this.bannerMapper = bannerMapper;
    }

    public void add(Banner dto) {
        if(dto.getId()!=null){
            throw new ValidationException("id必须为空");
        }
        dto.setStatus(Constants.COMMON_PUBLISH_STATUS.unpublished.name());
        dto.create(SecurityUtils.getUserId());
        bannerMapper.insert(dto);
    }

    public void update(Banner dto) {
        if(dto.getId()==null || dto.getId()==0){
            throw new ValidationException("id不能为空");
        }
        Banner banner = bannerMapper.selectById(dto.getId());
        if(banner==null){
            throw new ValidationException("找不到id为"+dto.getId()+"的banner");
        }
        BeanUtils.copyProperties(dto, banner, "id", "createTime", "createBy","deleted","status");
        banner.update(SecurityUtils.getUserId());
        bannerMapper.updateById(banner);
    }

    public void delete(Long id) {
        Banner banner = bannerMapper.selectById(id);
        if(banner==null){
            throw new ValidationException("找不到id为"+id+"的公告");
        }
        bannerMapper.deleteById(id);
    }

    public BannerDTO detail(Long id) {
        Banner banner = bannerMapper.selectById(id);
        if(banner==null){
           return null;
        }
        BannerDTO dto = new BannerDTO();
        BeanUtils.copyProperties(banner,dto);
        return dto;
    }

    public Page<BannerDTO> queryPage(QueryBannerDTO dto, Page page) {
        if(StringUtils.isNotBlank(dto.getCreateDateBeginStr())){
            dto.setCreateDateBegin(DateUtils.dateToLocalDateTime(dto.getCreateDateBeginStr(),true));
        }
        if(StringUtils.isNotBlank(dto.getCreateDateEndStr())){
            dto.setCreateDateEnd(DateUtils.dateToLocalDateTime(dto.getCreateDateEndStr(),false));
        }
       List<BannerDTO> list =  bannerMapper.queryPage(dto,page);
        page.setRecords(list);
        return page;

    }

    public void changeStatus(Long id) {
        Banner banner = bannerMapper.selectById(id);
        if(banner==null){
            throw new ValidationException("找不到id为"+id+"的公告");
        }
        if(Constants.COMMON_PUBLISH_STATUS.published.name().equals(banner.getStatus())){
            banner.setStatus(Constants.COMMON_PUBLISH_STATUS.unpublished.name());
        }else{
            banner.setStatus(Constants.COMMON_PUBLISH_STATUS.published.name());
        }
        bannerMapper.updateById(banner);
    }

    public void batchDelete(BatchDTO dto) {
        bannerMapper.deleteBatchIds(dto.getIds());
    }

    public void batchPublish(BatchDTO dto) {
        List<Banner> list = bannerMapper.selectList(new LambdaQueryWrapper<Banner>().in(Banner::getId, dto.getIds()));
        for (Banner banner : list) {
            banner.setStatus(Constants.COMMON_PUBLISH_STATUS.published.name());
            bannerMapper.updateById(banner);
        }
    }

    public List<BannerDTO> queryList(QueryBannerDTO dto) {
        if(StringUtils.isNotBlank(dto.getCreateDateBeginStr())){
            dto.setCreateDateBegin(DateUtils.dateToLocalDateTime(dto.getCreateDateBeginStr(),true));
        }
        if(StringUtils.isNotBlank(dto.getCreateDateEndStr())){
            dto.setCreateDateEnd(DateUtils.dateToLocalDateTime(dto.getCreateDateEndStr(),false));
        }
        List<BannerDTO> list =  bannerMapper.queryList(dto);
        for (BannerDTO bannerDTO : list) {
            ///优化一下性能
            bannerDTO.setContent(null);
        }
        return list;
    }
}