feat: 레시피 삭제 시 자동으로 S3에서 이미지 삭제되도록 수정 - #102

src/main/java/com/hackathonteam1/refreshrator/repository/ImageRepository.java

@@ -1,9 +1,12 @@
 package com.hackathonteam1.refreshrator.repository;
 
 import com.hackathonteam1.refreshrator.entity.Image;
+import com.hackathonteam1.refreshrator.entity.Recipe;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.util.Optional;
 import java.util.UUID;
 
 public interface ImageRepository extends JpaRepository<Image, UUID> {
+    Optional<Image> findByRecipe(Recipe recipe);
 }

src/main/java/com/hackathonteam1/refreshrator/service/RecipeServiceImpl.java

@@ -46,10 +46,7 @@
 
 
 import java.io.IOException;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-import java.util.UUID;
+import java.util.*;
 import java.util.stream.Collectors;
 
 @Service
@@ -159,6 +156,10 @@ public void modifyContent(ModifyRecipeDto modifyRecipeDto, User user, UUID recip
     public void delete(UUID recipeId, User user) {
         Recipe recipe = findRecipeByRecipeId(recipeId);
         checkAuth(recipe.getUser(), user);
+        if(recipe.isContainingImage()){
+            Image image = findImageByRecipe(recipe);
+            s3Uploader.removeS3File(image.getUrl().split("/")[3]);
+        }
         recipeRepository.delete(recipe);
     }
 
@@ -397,4 +398,8 @@ private <T> void checkValidPage(Page<T> pages, int page){
             throw new NotFoundException(ErrorCode.PAGE_NOT_FOUND);
         }
     }
+
+    private Image findImageByRecipe(Recipe recipe){
+        return imageRepository.findByRecipe(recipe).orElseThrow(()->new NotFoundException(ErrorCode.IMAGE_NOT_FOUND));
+    }
 }