package cc.mrbird.febs.mall.service.impl;

import cc.mrbird.febs.common.exception.FebsException;
import cc.mrbird.febs.mall.conversion.MallGoodsConversion;
import cc.mrbird.febs.mall.conversion.MallMemberConversion;
import cc.mrbird.febs.mall.dto.MallGoodsQueryDto;
import cc.mrbird.febs.mall.entity.MallGoods;
import cc.mrbird.febs.mall.mapper.MallGoodsImagesMapper;
import cc.mrbird.febs.mall.mapper.MallGoodsMapper;
import cc.mrbird.febs.mall.service.IApiMallGoodsService;
import cc.mrbird.febs.mall.vo.MallGoodsDetailsVo;
import cc.mrbird.febs.mall.vo.MallGoodsListVo;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.List;
import java.util.Map;

/**
 * @author wzy
 * @date 2021-09-17
 **/
@Slf4j
@Service
@RequiredArgsConstructor
public class ApiMallGoodsServiceImpl extends ServiceImpl<MallGoodsMapper, MallGoods> implements IApiMallGoodsService {

    private final MallGoodsImagesMapper goodsImagesMapper;

    @Override
    public IPage<MallGoodsListVo> findMallGoodsListInPage(MallGoodsQueryDto queryDto) {
        Page<MallGoodsListVo> page = new Page<>(queryDto.getPageNow(), queryDto.getPageSize());
        return this.baseMapper.selectMallGoodsListQueryInPage(queryDto, page);
    }

    @Override
    public MallGoodsDetailsVo findMallGoodsDetailsById(Long id) {
        MallGoods mallGoods = this.baseMapper.selectGoodsDetailById(id);
        if (mallGoods == null) {
            throw new FebsException("商品不存在");
        }
        List<String> images = goodsImagesMapper.selectGoodsImagesByGoodsId(mallGoods.getId());
        MallGoodsDetailsVo mallGoodsDetailsVo = MallGoodsConversion.INSTANCE.entityToDetailsVo(mallGoods);

        Map<String, BigDecimal> stockAndVolume = this.baseMapper.selectGoodsStockAndVolume(id);
        mallGoodsDetailsVo.setStock(stockAndVolume.get("stock").intValue());
        mallGoodsDetailsVo.setVolume(stockAndVolume.get("volume").intValue());
        mallGoodsDetailsVo.setImages(images);
        return mallGoodsDetailsVo;
    }
}