fix: 피드백 빨간점 읽음 처리 (#131)

src/main/java/com/slatto/domain/notification/repository/NotificationRepository.java

@@ -103,6 +103,26 @@ int markAsReadByIdAndUserId(
         @Param("readAt") LocalDateTime readAt
     );
 
+    @Modifying(clearAutomatically = true, flushAutomatically = true)
+    @Query("""
+        update Notification n
+        set n.isRead = true,
+            n.readAt = :readAt
+        where n.user.id = :userId
+            and n.type = :type
+            and n.targetType = :targetType
+            and n.targetId = :videoId
+            and n.isRead = false
+            and n.deletedAt is null
+        """)
+    int markVideoFeedbackNotificationsAsRead(
+        @Param("userId") Long userId,
+        @Param("type") NotificationType type,
+        @Param("targetType") String targetType,
+        @Param("videoId") Long videoId,
+        @Param("readAt") LocalDateTime readAt
+    );
+
     // 동일 대상의 미읽음 그룹 알림을 잠금 조회해 누적 개수와 문구를 같은 엔티티 상태 기준으로 갱신한다.
     @Lock(LockModeType.PESSIMISTIC_WRITE)
     @Query("""

src/main/java/com/slatto/domain/notification/service/NotificationService.java

@@ -102,6 +102,20 @@ public void markAllNotificationsAsRead(Long currentUserId) {
         notificationRepository.markAllAsReadByUserId(currentUserId, LocalDateTime.now());
     }
 
+    @Transactional
+    public void markVideoFeedbackNotificationsAsRead(Long userId, Long videoId) {
+        validateActiveUser(userId);
+        validateRequiredId(videoId);
+
+        notificationRepository.markVideoFeedbackNotificationsAsRead(
+            userId,
+            NotificationType.VIDEO_FEEDBACK_COMMENTED,
+            NotificationTargetType.VIDEO.name(),
+            videoId,
+            LocalDateTime.now()
+        );
+    }
+
     /**
      * 영상 목록의 미읽은 피드백 누적 개수를 한 번에 조회한다.
      */

src/main/java/com/slatto/domain/video/service/VideoService.java

@@ -59,6 +59,7 @@ public class VideoService {
     private final YoutubeUrlParser youtubeUrlParser;
     private final YoutubeApiClient youtubeApiClient;
 
+    @Transactional
     public VideoDetailResDTO getVideo(Long memberId, Long projectId, Long videoId) {
         if (!projectAccessRepository.projectExistsById(projectId)) {
             throw new BaseException(CommonErrorCode.NOT_FOUND);
@@ -75,6 +76,8 @@ public VideoDetailResDTO getVideo(Long memberId, Long projectId, Long videoId) {
                 projectAccessRepository.findProjectRoleNames(projectId)
         );
 
+        notificationService.markVideoFeedbackNotificationsAsRead(memberId, videoId);
+
         return VideoDetailResDTO.from(video, bookmarked, projectTags);
     }