Merge pull request #137 from CSID-DGU/backend/feature/crew

BE: [feat] 갤러리 댓글 조회 #83

src/backend/src/main/java/RunningMachines/R2R/domain/crew/post/gallery/comment/repository/CrewPostCommentRepository.java

@@ -1,7 +1,11 @@
 package RunningMachines.R2R.domain.crew.post.gallery.comment.repository;
 
+import RunningMachines.R2R.domain.crew.post.entity.CrewPost;
 import RunningMachines.R2R.domain.crew.post.entity.CrewPostComment;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.util.List;
+
 public interface CrewPostCommentRepository extends JpaRepository<CrewPostComment, Long> {
+    List<CrewPostComment> findByCrewPost(CrewPost crewPost);
 }

src/backend/src/main/java/RunningMachines/R2R/domain/crew/post/gallery/comment/service/CrewPostCommentService.java

@@ -15,6 +15,8 @@
 import org.springframework.transaction.annotation.Transactional;
 
 import java.time.format.DateTimeFormatter;
+import java.util.List;
+import java.util.stream.Collectors;
 
 @Service
 @RequiredArgsConstructor
@@ -49,4 +51,21 @@ public Long createComment(Long crewId, Long postId, CrewPostCommentRequestDto re
         return savedComment.getId();
     }
 
+    @Transactional(readOnly = true)
+    public List<CrewPostCommentResponseDto> getComments(Long crewPostId) {
+        CrewPost crewPost = crewPostRepository.findById(crewPostId)
+                .orElseThrow(() -> new IllegalArgumentException("게시글을 찾을 수 없습니다."));
+
+        List<CrewPostComment> comments = crewPostCommentRepository.findByCrewPost(crewPost);
+
+        return comments.stream()
+                .map(comment -> CrewPostCommentResponseDto.builder()
+                        .commentId(comment.getId())
+                        .content(comment.getContent())
+                        .authorName(comment.getUser().getNickname())
+                        .authorProfile(comment.getUser().getProfileImageUrl())
+                        .createdAt(comment.getCreatedAt().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm")))
+                        .build())
+                .collect(Collectors.toList());
+    }
 }

src/backend/src/main/java/RunningMachines/R2R/domain/crew/post/gallery/controller/GalleryPostController.java

@@ -57,4 +57,10 @@ public ResponseEntity<Long> createComment(@PathVariable Long crewId, @PathVariab
         Long commentId = crewPostCommentService.createComment(crewId, postId, requestDto);
         return ResponseEntity.ok(commentId);
     }
+
+    @GetMapping("/{crewPostId}/comments")
+    public ResponseEntity<List<CrewPostCommentResponseDto>> getComments(@PathVariable Long crewId, @PathVariable Long crewPostId) {
+        List<CrewPostCommentResponseDto> comments = crewPostCommentService.getComments(crewPostId);
+        return ResponseEntity.ok(comments);
+    }
 }