Merge pull request #65 from Decodeat/Refactor/#64

Refactor: 좋아요시 user_behavior에 추가/삭제되도록 수정

Author: Yujin1219

src/main/java/com/DecodEat/domain/products/service/ProductService.java

@@ -365,6 +365,8 @@ public ProductLikeResponseDTO addOrUpdateLike(Long userId, Long productId) {
             // 이미 눌렀으면 → 좋아요 취소
             productLikeRepository.delete(existingLike.get());
             isLiked = false;
+            userBehaviorService.deleteUserBehavior(user,product, Behavior.LIKE);
+
         } else {
             // 처음 누르면 → 좋아요 추가
             ProductLike productLike = ProductLike.builder()
@@ -373,6 +375,7 @@ public ProductLikeResponseDTO addOrUpdateLike(Long userId, Long productId) {
                     .build();
             productLikeRepository.save(productLike);
             isLiked = true;
+            userBehaviorService.saveUserBehavior(user,product, Behavior.LIKE);
         }
         return ProductConverter.toProductLikeDTO(productId, isLiked);
     }

src/main/java/com/DecodEat/domain/users/repository/UserBehaviorRepository.java

@@ -1,7 +1,13 @@
 package com.DecodEat.domain.users.repository;
 
+import com.DecodEat.domain.products.entity.Product;
+import com.DecodEat.domain.users.entity.Behavior;
+import com.DecodEat.domain.users.entity.User;
 import com.DecodEat.domain.users.entity.UserBehavior;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 public interface UserBehaviorRepository extends JpaRepository<UserBehavior, Long> {
+
+    void deleteByUserAndProductAndBehavior(User user, Product product, Behavior behavior);
+
 }

src/main/java/com/DecodEat/domain/users/service/UserBehaviorService.java

@@ -12,7 +12,9 @@
 @Service
 @RequiredArgsConstructor
 public class UserBehaviorService {
+
     private final UserBehaviorRepository userBehaviorRepository;
+
     @Transactional
     public void saveUserBehavior(User user, Product product, Behavior behavior) {
         UserBehavior userBehavior = UserBehavior.builder()
@@ -22,4 +24,10 @@ public void saveUserBehavior(User user, Product product, Behavior behavior) {
                 .build();
         userBehaviorRepository.save(userBehavior);
     }
+
+    @Transactional
+    public void deleteUserBehavior(User user, Product product, Behavior behavior) {
+        userBehaviorRepository.deleteByUserAndProductAndBehavior(user, product, behavior);
+    }
+
 }