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

import cc.mrbird.febs.common.exception.FebsException;
import cc.mrbird.febs.common.utils.LoginUserUtil;
import cc.mrbird.febs.mall.dto.AddCollectionDto;
import cc.mrbird.febs.mall.dto.MemberCollectionListDto;
import cc.mrbird.febs.mall.entity.MallGoods;
import cc.mrbird.febs.mall.entity.MallMember;
import cc.mrbird.febs.mall.entity.MallMemberCollection;
import cc.mrbird.febs.mall.mapper.MallMemberCollectionMapper;
import cc.mrbird.febs.mall.service.IApiMallGoodsService;
import cc.mrbird.febs.mall.service.IMallMemberCollectionService;
import cc.mrbird.febs.mall.vo.AddCollectionVo;
import cc.mrbird.febs.mall.vo.CollectionListVo;
import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.StrUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

@Slf4j
@Service
@RequiredArgsConstructor
public class MallMemberCollectionServiceImpl extends ServiceImpl<MallMemberCollectionMapper, MallMemberCollection> implements IMallMemberCollectionService {

    private final IApiMallGoodsService apiMallGoodsService;

    @Override
    public void add(AddCollectionDto addCollectionDto) {
        MallMember member = LoginUserUtil.getLoginUser();

        MallGoods mallgoods = apiMallGoodsService.getById(addCollectionDto.getGoodsId());
        if (mallgoods == null) {
            throw new FebsException("商品不存在");
        }

        LambdaQueryWrapper<MallMemberCollection> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(MallMemberCollection::getMemberId, member.getId());
        queryWrapper.eq(MallMemberCollection::getGoodsId, addCollectionDto.getGoodsId());
        List<MallMemberCollection> mallMemberCollections = this.baseMapper.selectList(queryWrapper);
        if (CollUtil.isNotEmpty(mallMemberCollections)) {
            throw new FebsException("商品已收藏");
        }

        MallMemberCollection collection = new MallMemberCollection();
        collection.setMemberId(member.getId());
        collection.setGoodsId(addCollectionDto.getGoodsId());

        this.baseMapper.insert(collection);
    }

    @Override
    public List<CollectionListVo> findMemberCollectionList(MemberCollectionListDto memberCollectionListDto) {
        MallMember member = LoginUserUtil.getLoginUser();
        MallMemberCollection collection = new MallMemberCollection();
        collection.setMemberId(member.getId());

        Page<MallMemberCollection> page = new Page<>(memberCollectionListDto.getPageNow(), memberCollectionListDto.getPageSize());
        IPage<MallMemberCollection> result = this.baseMapper.selectMemberCollectionListInPage(collection, page);
        if (CollUtil.isEmpty(result.getRecords())) {
            return new ArrayList<>();
        }

        return result.getRecords().stream().map(item -> BeanUtil.copyProperties(item, CollectionListVo.class)).collect(Collectors.toList());
    }

    @Override
    public void del(String ids) {
        MallMember member = LoginUserUtil.getLoginUser();
        List<String> goodsIdList = StrUtil.split(ids, ',');

        LambdaQueryWrapper<MallMemberCollection> query = new LambdaQueryWrapper<>();
        query.in(MallMemberCollection::getGoodsId, goodsIdList);
        query.eq(MallMemberCollection::getMemberId, member.getId());
        List<MallMemberCollection> collections = this.baseMapper.selectList(query);

        List<Long> idsList = collections.stream().map(MallMemberCollection::getId).collect(Collectors.toList());
        LambdaQueryWrapper<MallMemberCollection> delQuery = new LambdaQueryWrapper<>();
        delQuery.in(MallMemberCollection::getId, idsList);
        delQuery.eq(MallMemberCollection::getMemberId, member.getId());
        this.baseMapper.delete(delQuery);
    }
}