package com.glxp.api.service.collect;

import cn.hutool.core.util.StrUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.github.pagehelper.PageHelper;
import com.glxp.api.dao.basic.BasicProductsDao;
import com.glxp.api.entity.basic.BasicProductsEntity;
import com.glxp.api.exception.JsonException;
import com.glxp.api.req.collect.RelCodeDetailRequest;
import com.glxp.api.res.collect.RelCodeDetailResponse;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import java.util.Collections;
import java.util.List;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.glxp.api.dao.collect.RelCodeDetailMapper;
import com.glxp.api.entity.collect.RelCodeDetail;
@Service
public class RelCodeDetailService extends ServiceImpl<RelCodeDetailMapper, RelCodeDetail> {

    @Resource
    private BasicProductsDao basicProductsDao;

    /**
     * 扫码获取子集
     * @param relCodeDetailRequest
     * @return
     */
    public RelCodeDetailResponse scanCode(RelCodeDetailRequest relCodeDetailRequest) {
        String parentCode = relCodeDetailRequest.getParentCode();
        if(StrUtil.isBlank(parentCode)){
            throw new JsonException("父级码不能为空");
        }
        RelCodeDetailResponse relCodeDetailResponse = new RelCodeDetailResponse();
        LambdaQueryWrapper<BasicProductsEntity> qw = new LambdaQueryWrapper<BasicProductsEntity>()
                .eq(BasicProductsEntity::getNameCode, relCodeDetailRequest.getParentCode())
                .last("limit 1");
        BasicProductsEntity parent = basicProductsDao.selectOne(qw);
        if(parent == null){
            throw new JsonException("产品信息不存在");
        }
        Integer packLevel = Integer.valueOf(parent.getPackLevel());
        if(packLevel == 1){
            throw new JsonException("产品信息不存在子包装");
        }
        //todo 可能存在多个子集 如何处理
        LambdaQueryWrapper<BasicProductsEntity> qw2 = new LambdaQueryWrapper<BasicProductsEntity>()
                .eq(BasicProductsEntity::getUuid, parent.getUuid())
                .eq(BasicProductsEntity::getPackLevel,packLevel - 1)
                .last("limit 1");
        BasicProductsEntity subset = basicProductsDao.selectOne(qw2);
        relCodeDetailResponse.setCurCode(subset.getNameCode());
        relCodeDetailResponse.setPackLayer(Integer.valueOf(subset.getPackLevel()));
        relCodeDetailResponse.setParentCode(parent.getNameCode());
        relCodeDetailResponse.setFlag(Integer.valueOf(subset.getMajorStatus()));
        return relCodeDetailResponse;
    }

    /**
     * 明细列表
     * @param relCodeDetailRequest
     * @return
     */
    public List<RelCodeDetailResponse> filterList(RelCodeDetailRequest relCodeDetailRequest) {
        if (relCodeDetailRequest == null) {
            return Collections.emptyList();
        }
        if (relCodeDetailRequest.getPage() != null) {
            int offset = (relCodeDetailRequest.getPage() - 1) * relCodeDetailRequest.getLimit();
            PageHelper.offsetPage(offset, relCodeDetailRequest.getLimit());
        }
        return this.baseMapper.filterList(relCodeDetailRequest);
    }

}