Feat: 프로필 화면 상단정보 / 피드 이미지 미리보기 api

src/main/java/EatPic/spring/domain/card/controller/CardController.java

@@ -143,5 +143,13 @@ public ApiResponse<List<RecommendCardResponse>> getRecommendedCards(
     return ApiResponse.onSuccess(cardService.getRecommendedCardPreviews(user.getId()));
   }
 
+  @GetMapping("/profile/{userId}")
+  @Operation(summary = "프로필 화면 피드 미리보기", description = "공유한 카드의 번호와 이미지 url 조회 API")
+  public ApiResponse<CardResponse.ProfileCardListDTO> getProfileCardsList(@PathVariable Long userId,
+                                                                          @RequestParam(required = false) Long cursor,
+                                                                          @RequestParam(defaultValue = "15") int size) {
+    return ApiResponse.onSuccess(cardService.getProfileCardList(userId, size, cursor));
+  }
+
 
 }

src/main/java/EatPic/spring/domain/card/converter/CardConverter.java

@@ -157,4 +157,23 @@ public static CardDeleteResponse toCardDeleteResponse(Card card) {
             .successMessage("카드 삭제 성공")
             .build();
     }
+
+    public static CardResponse.ProfileCardDTO toProfileCardDto(Card card){
+        return CardResponse.ProfileCardDTO.builder()
+                .cardId(card.getId())
+                .cardImageUrl(card.getCardImageUrl())
+                .build();
+    }
+
+    public static CardResponse.ProfileCardListDTO toProfileCardList(Long userId, Slice<Card> cardList) {
+        List<Card> list = cardList.getContent();
+        return CardResponse.ProfileCardListDTO.builder()
+                .hasNext(cardList.hasNext())
+                .nextCursor(cardList.hasNext() ? list.get(list.size() - 1).getId() : null)
+                .userId(userId)
+                .cardsList(cardList.getContent().stream()
+                        .map(CardConverter::toProfileCardDto)
+                        .toList())
+                .build();
+    }
 }

src/main/java/EatPic/spring/domain/card/dto/response/CardResponse.java

@@ -293,6 +293,25 @@ public static class CardDeleteResponse {
 
   }
 
+  @Builder
+  @Getter
+  @NoArgsConstructor
+  @AllArgsConstructor
+  public static class ProfileCardListDTO{
+    private Long userId;
+    private boolean hasNext;
+    private Long nextCursor;
+    private List<ProfileCardDTO> cardsList;
+  }
+
+  @Builder
+  @Getter
+  @NoArgsConstructor
+  @AllArgsConstructor
+  public static class ProfileCardDTO {
+    private Long cardId;
+    private String cardImageUrl;
+  }
 
 
 }

src/main/java/EatPic/spring/domain/card/repository/CardRepository.java

@@ -110,4 +110,17 @@ SELECT ch.hashtag.id, COUNT(ch.card.id)
     """)
   List<Object[]> countCardsByHashtagIds(@Param("hashtagIds") List<Long> hashtagIds);
 
+  Slice<Card> findByUserIdAndIsSharedTrueAndIsDeletedFalseOrderByIdDesc(Long userId, Pageable pageable);
+  Slice<Card> findByUserIdAndIsSharedTrueAndIsDeletedFalseAndIdLessThanOrderByIdDesc(Long userId, Long cursor, Pageable pageable);
+
+  @Query("""
+  select count(c)
+  from Card c
+  where c.isDeleted = false
+    and c.isShared = true
+    and c.user.id = :userId
+""")
+  Long countByUserIdAndIsDeletedFalseAndIsSharedTrue(@Param("userId") Long userId);
+
+
 }

src/main/java/EatPic/spring/domain/card/service/CardService.java

@@ -25,4 +25,5 @@ public interface CardService {
   CardDetailResponse updateCard(Long cardId, User user, CardUpdateRequest request);
   CardResponse.PagedCardFeedResponseDto getCardFeedByCursor(HttpServletRequest request, Long userId, int size, Long cursor);
   List<RecommendCardResponse> getRecommendedCardPreviews(Long userId);
+  CardResponse.ProfileCardListDTO getProfileCardList(Long userId, int size, Long cursor);
 }

src/main/java/EatPic/spring/domain/card/service/CardServiceImpl.java

@@ -251,6 +251,19 @@ public CardFeedResponse getCardFeed(Long cardId, Long userId) {
         );
     }
 
+    @Override
+    public CardResponse.ProfileCardListDTO getProfileCardList(Long userId, int size, Long cursor) {
+        Slice<Card> cardSlice;
+        Pageable pageable = PageRequest.of(0, size);
+
+        if (cursor == null) {
+            cardSlice = cardRepository.findByUserIdAndIsSharedTrueAndIsDeletedFalseOrderByIdDesc(userId, pageable);
+        } else {
+            cardSlice = cardRepository.findByUserIdAndIsSharedTrueAndIsDeletedFalseAndIdLessThanOrderByIdDesc(userId, cursor, pageable);
+        }
+        return CardConverter.toProfileCardList(userId, cardSlice);
+    }
+
     @Override
     @Transactional
     public CardDeleteResponse deleteCard(Long cardId, Long userId) {

src/main/java/EatPic/spring/domain/user/controller/UserRestController.java

@@ -79,4 +79,11 @@ public ApiResponse<UserResponseDTO.ProfileDto> updateUserIntroduce(
         UserResponseDTO.ProfileDto updatedProfile = userService.updateIntroduce(request, introduce, user);
         return ApiResponse.onSuccess(updatedProfile);
     }
+
+    @Operation(summary = "유저 프로필 조회")
+    @GetMapping("/profile/{userId}")
+    public ApiResponse<UserResponseDTO.DetailProfileDto> getProfile(HttpServletRequest request,
+                                                                    @PathVariable Long userId) {
+        return ApiResponse.onSuccess(userService.getProfile(request,userId));
+    }
 }

src/main/java/EatPic/spring/domain/user/converter/UserConverter.java

@@ -63,7 +63,6 @@ public static UserResponseDTO.ProfileDto toProfileIconDto(User user){
                 .isFollowing(true)
                 .build();
     }
-    // todo: 두개 비슷함 -> 합치기
     public static UserResponseDTO.ProfileDto toProfileDto(User user, Boolean isFollowing){
         return UserResponseDTO.ProfileDto.builder()
                 .userId(user.getId())
@@ -73,6 +72,25 @@ public static UserResponseDTO.ProfileDto toProfileDto(User user, Boolean isFollo
                 .isFollowing(isFollowing)
                 .build();
     }
+    public static UserResponseDTO.DetailProfileDto toDetailProfileDto(
+            User user,
+            Boolean isFollowing,
+            Long totalCard,
+            Long totalFollower,
+            Long totalFollowing) {
+
+        return UserResponseDTO.DetailProfileDto.builder()
+                .userId(user.getId())
+                .profileImageUrl(user.getProfileImageUrl())
+                .nameId(user.getNameId())
+                .nickname(user.getNickname())
+                .isFollowing(isFollowing)
+                .introduce(user.getIntroduce())
+                .totalCard(totalCard)
+                .totalFollower(totalFollower)
+                .totalFollowing(totalFollowing)
+                .build();
+    }
 
     public static ReactionResponseDTO.CardReactionUserListDto toCardReactionUsersListDto(Long cardId, ReactionType reactionType, Page<UserResponseDTO.ProfileDto> profileList){
         return ReactionResponseDTO.CardReactionUserListDto.builder()

src/main/java/EatPic/spring/domain/user/dto/response/UserResponseDTO.java

@@ -44,6 +44,31 @@ public static class UserIconListResponseDto{
         private List<ProfileDto> userIconList;
     }
 
+    @Getter
+    @Builder
+    @AllArgsConstructor
+    @NoArgsConstructor
+    public static class DetailProfileDto {
+        @NotNull
+        private Long userId;
+        @NotNull
+        private String profileImageUrl;
+        @NotNull
+        private String nameId;
+        @NotNull
+        private String nickname;
+        @NotNull
+        private Boolean isFollowing;
+        @NotNull
+        private String introduce;
+        @NotNull
+        private Long totalCard;
+        @NotNull
+        private Long totalFollower;
+        @NotNull
+        private Long totalFollowing;
+    }
+
     @Getter
     @Builder
     @AllArgsConstructor

src/main/java/EatPic/spring/domain/user/repository/UserFollowRepository.java

@@ -23,4 +23,7 @@ public interface UserFollowRepository extends JpaRepository<UserFollow,Long> {
     List<Long> findFollowingUserIds(@Param("userId") Long userId);
 
     UserFollow findByUserAndTargetUser(User user, User target);
+
+    Long countUserFollowByTargetUser(User targetUser);
+    Long countUserFollowByUser(User user);
 }

src/main/java/EatPic/spring/domain/user/service/UserService.java

@@ -27,6 +27,7 @@ public interface UserService {
     UserResponseDTO.UserActionResponseDto followUser(HttpServletRequest request, Long targetUserId);
     UserResponseDTO.UserActionResponseDto unfollowUser(HttpServletRequest request, Long targetUserId);
     User getLoginUser(HttpServletRequest request);
+    UserResponseDTO.DetailProfileDto getProfile(HttpServletRequest request,Long userId);
 
     // 마이페이지 업데이트 관련 서비스
     UserResponseDTO.ProfileDto updateUserProfileImage(HttpServletRequest request, MultipartFile profileImage, User user);

src/main/java/EatPic/spring/domain/user/service/UserServiceImpl.java

@@ -1,5 +1,6 @@
 package EatPic.spring.domain.user.service;
 
+import EatPic.spring.domain.card.repository.CardRepository;
 import EatPic.spring.domain.user.converter.UserConverter;
 import EatPic.spring.domain.user.dto.*;
 import EatPic.spring.domain.user.dto.request.LoginRequestDTO;
@@ -44,6 +45,7 @@ public class UserServiceImpl implements UserService{
     private final UserFollowRepository userFollowRepository;
     private final UserBlockRepository userBlockRepository;
     private final UserBadgeService userBadgeService;
+    private final CardRepository cardRepository;
     private final PasswordEncoder passwordEncoder;
     private final JwtTokenProvider jwtTokenProvider;
 
@@ -189,6 +191,19 @@ public User getLoginUser(HttpServletRequest request) {
                 .orElseThrow(() -> new ExceptionHandler(ErrorStatus.MEMBER_NOT_FOUND));
     }
 
+    @Override
+    public UserResponseDTO.DetailProfileDto getProfile(HttpServletRequest request, Long userId) {
+        User me = getLoginUser(request);
+
+        User user = userRepository.findById(userId).orElseThrow(()-> new ExceptionHandler(USER_NOT_FOUND));
+        Boolean isFollowing = userFollowRepository.existsByUserAndTargetUser(me, user);
+        Long totalCard = cardRepository.countByUserIdAndIsDeletedFalseAndIsSharedTrue(userId);
+        Long totalFollower = userFollowRepository.countUserFollowByTargetUser(user);
+        Long totalFollowing = userFollowRepository.countUserFollowByUser(user);
+
+        return UserConverter.toDetailProfileDto(user, isFollowing,totalCard,totalFollower,totalFollowing);
+    }
+
     @Override
     public UserResponseDTO.UserActionResponseDto unfollowUser(HttpServletRequest request, Long targetUserId) {
         User user = getLoginUser(request);
@@ -207,8 +222,13 @@ public UserResponseDTO.UserActionResponseDto unfollowUser(HttpServletRequest req
     @Override
     public UserResponseDTO.UserActionResponseDto followUser(HttpServletRequest request, Long targetUserId) {
         User user = getLoginUser(request);
+        if(user.getId().equals(targetUserId)) {
+            throw new ExceptionHandler(FOLLOW_FORBBIDEN);
+        }
+
         User target = userRepository.findUserById(targetUserId);
 
+
         UserFollow prev = userFollowRepository.findByUserAndTargetUser(user,target);
         UserFollow follow = UserFollow.builder().user(user).targetUser(target).build();
         if(prev!=null && prev.getTargetUser().getId().equals(targetUserId)) {

src/main/java/EatPic/spring/global/common/code/status/ErrorStatus.java

@@ -65,6 +65,7 @@ public enum ErrorStatus implements BaseErrorCode {
     // 팔로우 관련 응답
     FOLLOW_ALREADY_EXISTS(HttpStatus.BAD_REQUEST, "FOLLOW_001", "이미 팔로잉 중입니다"),
     FOLLOW_NOT_EXISTS(HttpStatus.BAD_REQUEST, "FOLLOW_002", "팔로우 기록이 없습니다"),
+    FOLLOW_FORBBIDEN(HttpStatus.FORBIDDEN, "FOLLOW_003", "자신을 팔로우 할 수 없습니다."),
 
     // 약관 관련 응답
     TERM_NOT_FOUND(HttpStatus.NOT_FOUND, "TERM_001", "해당 약관을 찾을 수 없습니다.");