From 609d91e1e62b1e8932b34b15b09baf02e7f09a93 Mon Sep 17 00:00:00 2001
From: puzhibing <393733352@qq.com>
Date: 星期一, 09 十二月 2024 10:36:47 +0800
Subject: [PATCH] Merge branch 'master' of http://120.76.84.145:10101/gitblit/r/java/qijisheng

---
 ruoyi-service/ruoyi-other/src/main/java/com/ruoyi/other/service/impl/ShopServiceImpl.java |   88 ++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 88 insertions(+), 0 deletions(-)

diff --git a/ruoyi-service/ruoyi-other/src/main/java/com/ruoyi/other/service/impl/ShopServiceImpl.java b/ruoyi-service/ruoyi-other/src/main/java/com/ruoyi/other/service/impl/ShopServiceImpl.java
new file mode 100644
index 0000000..de346ca
--- /dev/null
+++ b/ruoyi-service/ruoyi-other/src/main/java/com/ruoyi/other/service/impl/ShopServiceImpl.java
@@ -0,0 +1,88 @@
+package com.ruoyi.other.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.ruoyi.common.core.exception.ServiceException;
+import com.ruoyi.common.core.utils.GeodesyUtil;
+import com.ruoyi.other.api.domain.ShopScore;
+import com.ruoyi.other.mapper.ShopMapper;
+import com.ruoyi.other.api.domain.Shop;
+import com.ruoyi.other.service.ShopScoreService;
+import com.ruoyi.other.service.ShopService;
+import com.ruoyi.other.vo.NearbyShopVO;
+import com.ruoyi.other.vo.ShopDetailVO;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+/**
+ * <p>
+ *  服务实现类
+ * </p>
+ *
+ * @author luodangjia
+ * @since 2024-11-20
+ */
+@Service
+public class ShopServiceImpl extends ServiceImpl<ShopMapper, Shop> implements ShopService {
+    @Resource
+    private ShopMapper shopMapper;
+    @Resource
+    private ShopScoreService shopScoreService;
+
+    @Override
+    public List<NearbyShopVO> nearbyShopList(BigDecimal longitude, BigDecimal latitude) {
+        List<NearbyShopVO> nearbyShopVOS = shopMapper.selectNearbyShopList(longitude, longitude);
+        if (nearbyShopVOS == null || nearbyShopVOS.isEmpty()) {
+            return Collections.emptyList();
+        }
+
+        List<Long> shopIds = nearbyShopVOS.stream().map(NearbyShopVO::getId).collect(Collectors.toList());
+        List<ShopScore> shopScores = shopScoreService.list(new LambdaQueryWrapper<ShopScore>().in(ShopScore::getShopId, shopIds));
+        if (shopScores == null || shopScores.isEmpty()) {
+            return nearbyShopVOS;
+        }
+
+        Map<Long, List<ShopScore>> shopScoreMap = shopScores.stream().collect(Collectors.groupingBy(ShopScore::getShopId));
+
+        nearbyShopVOS.forEach(nearbyShopVO -> {
+            List<ShopScore> scores = shopScoreMap.get(nearbyShopVO.getId());
+            if (scores != null && !scores.isEmpty()){
+                BigDecimal score = scores.stream()
+                        .map(ShopScore::getScore)
+                        .reduce(BigDecimal.ZERO, BigDecimal::add)
+                        .divide(new BigDecimal(scores.size()), 1, RoundingMode.HALF_UP);
+                nearbyShopVO.setScore(score.toString());
+            }
+        });
+        return nearbyShopVOS;
+    }
+
+    @Override
+    public ShopDetailVO getShopDetail(Integer shopId, BigDecimal longitude, BigDecimal latitude) {
+        // 查询店铺详情
+        ShopDetailVO shopDetailVO = shopMapper.selectShopDetail(shopId);
+        if (shopDetailVO == null) {
+            throw new ServiceException("查询店铺不存在");
+        }
+
+        // 计算距离
+        if (shopDetailVO.getLongitude() != null && shopDetailVO.getLatitude() != null){
+            String shopLocation = String.format("%s,%s", shopDetailVO.getLongitude(), shopDetailVO.getLatitude());
+            String userLocation = String.format("%s,%s", longitude.toString(), latitude.toString());
+            Map<String, Double> distanceMap = GeodesyUtil.getDistance(userLocation, shopLocation);
+            Double wGs84 = distanceMap.get("WGS84");
+            shopDetailVO.setDistance(wGs84);
+        }
+        return shopDetailVO;
+    }
+
+
+
+}

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