package com.ruoyi.other.service.impl;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.ruoyi.account.api.feignClient.AppUserClient;
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import com.ruoyi.common.core.exception.ServiceException;
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import com.ruoyi.common.core.utils.GeodesyUtil;
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import com.ruoyi.order.feignClient.RemoteOrderGoodsClient;
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import com.ruoyi.other.api.domain.ShopScore;
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import com.ruoyi.other.mapper.ShopMapper;
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import com.ruoyi.other.api.domain.Shop;
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import com.ruoyi.other.service.ShopScoreService;
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import com.ruoyi.other.service.ShopService;
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import com.ruoyi.other.vo.NearbyShopVO;
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import com.ruoyi.other.vo.ShopDetailVO;
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import org.springframework.stereotype.Service;
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import javax.annotation.Resource;
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import java.math.BigDecimal;
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import java.math.RoundingMode;
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import java.util.Collections;
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import java.util.List;
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import java.util.Map;
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import java.util.stream.Collectors;
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/**
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* <p>
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* 服务实现类
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* </p>
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*
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* @author luodangjia
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* @since 2024-11-20
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*/
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@Service
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public class ShopServiceImpl extends ServiceImpl<ShopMapper, Shop> implements ShopService {
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@Resource
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private ShopMapper shopMapper;
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@Resource
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private ShopScoreService shopScoreService;
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@Resource
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private RemoteOrderGoodsClient remoteOrderGoodsClient;
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@Override
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public IPage<Shop> getShopList(Integer PageNum, Integer pageSize, Shop shop) {
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Page<Shop> page = new Page<>();
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page.setCurrent(PageNum);
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page.setSize(pageSize);
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IPage<Shop> shopIPage = shopMapper.selectShopList(page, shop);
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return shopIPage;
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}
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@Override
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public List<NearbyShopVO> nearbyShopList(BigDecimal longitude, BigDecimal latitude) {
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List<NearbyShopVO> nearbyShopVOS = shopMapper.selectNearbyShopList(longitude, longitude);
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if (nearbyShopVOS == null || nearbyShopVOS.isEmpty()) {
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return Collections.emptyList();
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}
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List<Long> shopIds = nearbyShopVOS.stream().map(NearbyShopVO::getId).collect(Collectors.toList());
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List<ShopScore> shopScores = shopScoreService.list(new LambdaQueryWrapper<ShopScore>().in(ShopScore::getShopId, shopIds));
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if (shopScores == null || shopScores.isEmpty()) {
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return nearbyShopVOS;
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}
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Map<Long, List<ShopScore>> shopScoreMap = shopScores.stream().collect(Collectors.groupingBy(ShopScore::getShopId));
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nearbyShopVOS.forEach(nearbyShopVO -> {
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List<ShopScore> scores = shopScoreMap.get(nearbyShopVO.getId());
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if (scores != null && !scores.isEmpty()){
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BigDecimal score = scores.stream()
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.map(ShopScore::getScore)
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.reduce(BigDecimal.ZERO, BigDecimal::add)
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.divide(new BigDecimal(scores.size()), 1, RoundingMode.HALF_UP);
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nearbyShopVO.setScore(score.toString());
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}
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});
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return nearbyShopVOS;
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}
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@Override
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public ShopDetailVO getShopDetail(Integer shopId, BigDecimal longitude, BigDecimal latitude) {
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// 查询店铺详情
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ShopDetailVO shopDetailVO = shopMapper.selectShopDetail(shopId);
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if (shopDetailVO == null) {
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throw new ServiceException("查询店铺不存在");
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}
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// 计算距离
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if (shopDetailVO.getLongitude() != null && shopDetailVO.getLatitude() != null){
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String shopLocation = String.format("%s,%s", shopDetailVO.getLongitude(), shopDetailVO.getLatitude());
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String userLocation = String.format("%s,%s", longitude.toString(), latitude.toString());
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Map<String, Double> distanceMap = GeodesyUtil.getDistance(userLocation, shopLocation);
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Double wGs84 = distanceMap.get("WGS84");
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shopDetailVO.setDistance(wGs84);
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}
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return shopDetailVO;
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}
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}
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