feat: 서비스 분리

Author: ense333

src/main/java/com/threestar/trainus/domain/review/service/ReviewService.java

@@ -5,8 +5,8 @@
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import com.threestar.trainus.domain.lesson.student.service.StudentLessonService;
 import com.threestar.trainus.domain.lesson.teacher.entity.Lesson;
-import com.threestar.trainus.domain.lesson.teacher.repository.LessonParticipantRepository;
 import com.threestar.trainus.domain.lesson.teacher.service.AdminLessonService;
 import com.threestar.trainus.domain.metadata.service.ProfileMetadataService;
 import com.threestar.trainus.domain.review.dto.ReviewCreateRequestDto;
@@ -16,7 +16,6 @@
 import com.threestar.trainus.domain.review.mapper.ReviewMapper;
 import com.threestar.trainus.domain.review.repository.ReviewRepository;
 import com.threestar.trainus.domain.user.entity.User;
-import com.threestar.trainus.domain.user.repository.UserRepository;
 import com.threestar.trainus.domain.user.service.UserService;
 import com.threestar.trainus.global.exception.domain.ErrorCode;
 import com.threestar.trainus.global.exception.handler.BusinessException;
@@ -31,8 +30,7 @@ public class ReviewService {
 	private final ProfileMetadataService profileMetadataService;
 	private final ReviewRepository reviewRepository;
 	private final AdminLessonService adminLessonService;
-	private final UserRepository userRepository;
-	private final LessonParticipantRepository lessonParticipantRepository;
+	private final StudentLessonService studentLessonService;
 	private final UserService userService;
 
 	//참여자 테이블에 있는지도 검증 필요 횟수도 한번으로 제한
@@ -51,10 +49,8 @@ public ReviewCreateResponseDto createReview(ReviewCreateRequestDto reviewRequest
 		User lessonLeader = userService.getUserById(findLesson.getLessonLeader());
 
 		//참여자 테이블 검증 추후 추가 -> lessonId 와 userId 다 갖고 있는지
-		if (!lessonParticipantRepository.existsByLessonIdAndUserId(findLesson.getId(),
-			findUser.getId())) {
-			throw new BusinessException(ErrorCode.INVALID_LESSON_PARTICIPANT);
-		}
+		studentLessonService.checkValidLessonParticipant(findLesson, findUser);
+
 		if (reviewRepository.existsByReviewer_IdAndLessonId(findUser.getId(), findLesson.getId())) {
 			throw new BusinessException(ErrorCode.INVALID_REVIEW_COUNT);
 		}