test(community): CommunityComment 삭제 Usecase 추가 및 Service 구현

Author: ayoung-dev

src/main/java/com/somemore/community/service/comment/DeleteCommunityCommentService.java

@@ -0,0 +1,46 @@
+package com.somemore.community.service.comment;
+
+import com.somemore.community.domain.CommunityComment;
+import com.somemore.community.repository.comment.CommunityCommentRepository;
+import com.somemore.community.usecase.comment.DeleteCommunityCommentUseCase;
+import com.somemore.global.exception.BadRequestException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.UUID;
+
+import static com.somemore.global.exception.ExceptionMessage.*;
+
+@RequiredArgsConstructor
+@Transactional
+@Service
+public class DeleteCommunityCommentService implements DeleteCommunityCommentUseCase {
+
+    private final CommunityCommentRepository communityCommentRepository;
+
+    @Override
+    public void deleteCommunityComment(UUID writerId, Long id) {
+
+        CommunityComment communityComment = getCommunityBoardById(id);
+
+        validateWriter(communityComment, writerId);
+
+        communityComment.markAsDeleted();
+
+        communityCommentRepository.save(communityComment);
+    }
+
+    private CommunityComment getCommunityBoardById(Long id) {
+        return communityCommentRepository.findById(id)
+                .orElseThrow(() -> new BadRequestException(NOT_EXISTS_COMMUNITY_COMMENT.getMessage()));
+    }
+
+    private void validateWriter(CommunityComment communityComment, UUID writerId) {
+        if (communityComment.isWriter(writerId)) {
+            return;
+        }
+
+        throw new BadRequestException(UNAUTHORIZED_COMMUNITY_COMMENT.getMessage());
+    }
+}

src/main/java/com/somemore/community/usecase/comment/DeleteCommunityCommentUseCase.java

@@ -0,0 +1,7 @@
+package com.somemore.community.usecase.comment;
+
+import java.util.UUID;
+
+public interface DeleteCommunityCommentUseCase {
+    void deleteCommunityComment(UUID writerId, Long id);
+}