Merge pull request #73 from IT-Cotato/refactor/#72-folder-response

Refactor/#72 folder response

Author: ramen0519

src/main/java/com/finsight/finsight/domain/storage/application/dto/response/FolderResponse.java

@@ -6,14 +6,28 @@ public record FolderResponse(
         Long folderId,
         String folderType,
         String folderName,
-        Integer sortOrder
+        Integer sortOrder,
+        Long itemCount
 ) {
+    // 폴더 생성용 (itemCount 없이)
     public static FolderResponse from(FolderEntity entity) {
         return new FolderResponse(
                 entity.getFolderId(),
                 entity.getFolderType().name(),
                 entity.getFolderName(),
-                entity.getSortOrder()
+                entity.getSortOrder(),
+                null
+        );
+    }
+
+    // 폴더 조회/수정용 (itemCount 포함)
+    public static FolderResponse from(FolderEntity entity, Long itemCount) {
+        return new FolderResponse(
+                entity.getFolderId(),
+                entity.getFolderType().name(),
+                entity.getFolderName(),
+                entity.getSortOrder(),
+                itemCount
         );
     }
 }

src/main/java/com/finsight/finsight/domain/storage/domain/service/FolderService.java

@@ -10,6 +10,7 @@
 import com.finsight.finsight.domain.storage.exception.code.StorageErrorCode;
 import com.finsight.finsight.domain.storage.persistence.entity.FolderEntity;
 import com.finsight.finsight.domain.storage.persistence.entity.FolderType;
+import com.finsight.finsight.domain.storage.persistence.repository.FolderItemRepository;
 import com.finsight.finsight.domain.storage.persistence.repository.FolderRepository;
 import com.finsight.finsight.domain.user.persistence.entity.UserEntity;
 import com.finsight.finsight.domain.user.persistence.repository.UserRepository;
@@ -27,13 +28,17 @@ public class FolderService {
     private static final int MAX_FOLDER_COUNT = 10;
 
     private final FolderRepository folderRepository;
+    private final FolderItemRepository folderItemRepository;
     private final UserRepository userRepository;
 
     // 폴더 목록 조회
     public List<FolderResponse> getFolders(Long userId, FolderType folderType) {
         List<FolderEntity> folders = folderRepository.findByUserUserIdAndFolderTypeOrderBySortOrderAsc(userId, folderType);
         return folders.stream()
-                .map(FolderResponse::from)
+                .map(folder -> {
+                    long itemCount = folderItemRepository.countByFolderFolderId(folder.getFolderId());
+                    return FolderResponse.from(folder, itemCount);
+                })
                 .toList();
     }
 
@@ -88,7 +93,8 @@ public FolderResponse updateFolder(Long userId, Long folderId, UpdateFolderReque
         }
 
         folder.updateFolderName(request.folderName());
-        return FolderResponse.from(folder);
+        long itemCount = folderItemRepository.countByFolderFolderId(folder.getFolderId());
+        return FolderResponse.from(folder, itemCount);
     }
 
     // 폴더 삭제

src/main/java/com/finsight/finsight/domain/storage/persistence/repository/FolderItemRepository.java

@@ -17,6 +17,9 @@
 
 public interface FolderItemRepository extends JpaRepository<FolderItemEntity, Long> {
 
+    // 특정 폴더의 아이템 개수 조회
+    long countByFolderFolderId(Long folderId);
+
     // 특정 폴더의 아이템 목록 조회 (최신순)
     Page<FolderItemEntity> findByFolderFolderIdOrderBySavedAtDesc(Long folderId, Pageable pageable);