Feat: [FN-222] 카드셋 조회시 좋아요/즐겨찾기 여부 반환

src/main/java/project/flipnote/bookmark/service/BookmarkReader.java

@@ -0,0 +1,26 @@
+package project.flipnote.bookmark.service;
+
+import org.springframework.stereotype.Service;
+
+import lombok.RequiredArgsConstructor;
+import project.flipnote.bookmark.entity.BookmarkTargetType;
+import project.flipnote.bookmark.repository.BookmarkRepository;
+
+@Service
+@RequiredArgsConstructor
+public class BookmarkReader {
+	private final BookmarkRepository bookmarkRepository;
+
+	/**
+	 * 즐겨찾기를 했는지 여부를 조회합니다.
+	 *
+	 * @param userId      즐겨찾기를 했는지 확인할 회원 ID
+	 * @param targetType  즐겨찾기 대상의 타입
+	 * @param targetId    즐겨찾기 대상의 ID
+	 * @return 타겟을 즐겨찾기 했으면 true, 아니면 false
+	 * @author 윤정환
+	 */
+	public boolean isBookmarked(Long userId, BookmarkTargetType targetType, Long targetId) {
+		return bookmarkRepository.existsByTargetTypeAndUserIdAndTargetId(targetType, userId, targetId);
+	}
+}

src/main/java/project/flipnote/cardset/model/CardSetDetailResponse.java

@@ -15,6 +15,8 @@ public record CardSetDetailResponse(
 	String imageUrl,
 	Long imageRefId,
 	boolean publicVisible,
+	boolean liked,
+	boolean bookmarked,
 
 	@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
 	LocalDateTime createdAt,
@@ -23,7 +25,7 @@ public record CardSetDetailResponse(
 	LocalDateTime modifiedAt
 ) {
 
-	public static CardSetDetailResponse from(CardSet cardSet, Long imageRefId) {
+	public static CardSetDetailResponse from(CardSet cardSet, boolean liked, boolean bookmarked, Long imageRefId) {
 		return new CardSetDetailResponse(
 			cardSet.getId(),
 			cardSet.getGroup().getId(),
@@ -33,6 +35,8 @@ public static CardSetDetailResponse from(CardSet cardSet, Long imageRefId) {
 			cardSet.getImageUrl(),
 			imageRefId,
 			cardSet.getPublicVisible(),
+			liked,
+			bookmarked,
 			cardSet.getCreatedAt(),
 			cardSet.getModifiedAt()
 		);

src/main/java/project/flipnote/cardset/service/CardSetService.java

@@ -1,7 +1,6 @@
 package project.flipnote.cardset.service;
 
 import java.util.List;
-import java.util.Optional;
 import java.util.Set;
 
 import org.springframework.beans.factory.annotation.Value;
@@ -11,6 +10,9 @@
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import project.flipnote.bookmark.entity.BookmarkTargetType;
+import project.flipnote.bookmark.service.BookmarkReader;
+import project.flipnote.bookmark.service.BookmarkService;
 import project.flipnote.cardset.entity.CardSet;
 import project.flipnote.cardset.entity.CardSetManager;
 import project.flipnote.cardset.entity.CardSetMetadata;
@@ -40,6 +42,8 @@
 import project.flipnote.image.entity.ReferenceType;
 import project.flipnote.image.service.ImageRefService;
 import project.flipnote.image.service.ImageService;
+import project.flipnote.like.entity.LikeTargetType;
+import project.flipnote.like.service.LikeReader;
 import project.flipnote.user.entity.UserProfile;
 import project.flipnote.user.entity.UserStatus;
 import project.flipnote.user.exception.UserErrorCode;
@@ -61,6 +65,8 @@ public class CardSetService {
 	private final ImageService imageService;
 	private final ImageRefService imageRefService;
 	private final GroupService groupService;
+	private final LikeReader likeReader;
+	private final BookmarkReader bookmarkReader;
 
 	@Value("${image.default.cardSet}")
 	private String defaultCardSetImage;
@@ -116,7 +122,7 @@ public CreateCardSetResponse createCardSet(Long groupId, AuthPrinciple authPrinc
 
 		cardSetRepository.save(cardSet);
 
-		if(req.imageRefId()!=null) {
+		if (req.imageRefId() != null) {
 			// 이미지 활성화
 			imageService.changeUrlStatus(req.imageRefId(), REFERENCE_TYPE, cardSet.getId());
 		}
@@ -147,7 +153,7 @@ public CreateCardSetResponse createCardSet(Long groupId, AuthPrinciple authPrinc
 	public PagingResponse<CardSetSummaryResponse> getCardSets(CardSetSearchRequest req) {
 		// TODO: Projection 튜닝 필요
 		Page<CardSetInfo> cardSetPage = cardSetRepository.searchByNameContainingAndCategory(
-				req.getKeyword(), Category.from(req.getCategory()), req.getPageRequest()
+			req.getKeyword(), Category.from(req.getCategory()), req.getPageRequest()
 		);
 
 		Page<CardSetSummaryResponse> res = cardSetPage.map(CardSetSummaryResponse::from);
@@ -169,13 +175,14 @@ public CardSetDetailResponse getCardSet(Long userId, Long groupId, Long cardSetI
 
 		cardSetPolicyService.validateCardSetViewable(cardSet, userId);
 
-		Optional<ImageRef> imageRef = imageRefService.findByTypeAndReferenceId(REFERENCE_TYPE, cardSetId);
+		boolean liked = likeReader.isLiked(userId, LikeTargetType.CARD_SET, cardSetId);
+		boolean bookmarked = bookmarkReader.isBookmarked(userId, BookmarkTargetType.CARD_SET, cardSetId);
 
 		Long imageRefId = imageRefService.findByTypeAndReferenceId(REFERENCE_TYPE, cardSetId)
 			.map(ImageRef::getId)
 			.orElse(null);
 
-		return CardSetDetailResponse.from(cardSet, imageRefId);
+		return CardSetDetailResponse.from(cardSet, liked, bookmarked, imageRefId);
 	}
 
 	/**
@@ -201,7 +208,10 @@ public CardSetDetailResponse updateCardSet(Long userId, Long groupId, Long cardS
 
 		cardSetRepository.saveAndFlush(cardSet);
 
-		return CardSetDetailResponse.from(cardSet, imageMeta.imageRefId());
+		boolean liked = likeReader.isLiked(userId, LikeTargetType.CARD_SET, cardSetId);
+		boolean bookmarked = bookmarkReader.isBookmarked(userId, BookmarkTargetType.CARD_SET, cardSetId);
+
+		return CardSetDetailResponse.from(cardSet, liked, bookmarked, imageMeta.imageRefId());
 	}
 
 	/**

src/main/java/project/flipnote/like/service/LikeReader.java

@@ -19,4 +19,18 @@ public Like findByTargetAndUserId(LikeTargetType targetType, Long targetId, Long
 		return likeRepository.findByTargetTypeAndTargetIdAndUserId(targetType, targetId, userId)
 			.orElseThrow(() -> new BizException(LikeErrorCode.LIKE_NOT_FOUND));
 	}
+
+
+	/**
+	 * 좋아요 누른 여부를 조회합니다.
+	 *
+	 * @param userId      좋아요를 눌렀는지 확인할 회원 ID
+	 * @param targetType  좋아요 대상의 타입
+	 * @param targetId    좋아요 대상의 ID
+	 * @return 타겟을 좋아요 눌렀으면 true, 아니면 false
+	 * @author 윤정환
+	 */
+	public boolean isLiked(Long userId, LikeTargetType targetType, Long targetId) {
+		return likeRepository.existsByTargetTypeAndTargetIdAndUserId(targetType, targetId, userId);
+	}
 }

src/main/java/project/flipnote/like/service/LikeService.java

@@ -20,8 +20,8 @@
 import project.flipnote.like.entity.Like;
 import project.flipnote.like.entity.LikeTargetType;
 import project.flipnote.like.exception.LikeErrorCode;
-import project.flipnote.like.model.response.LikeResponse;
 import project.flipnote.like.model.request.LikeSearchRequest;
+import project.flipnote.like.model.response.LikeResponse;
 import project.flipnote.like.model.response.LikeTargetResponse;
 import project.flipnote.like.repository.LikeRepository;