#5 feat: 전시회 상세 조회 API

place/src/main/java/com/umc/place/common/BaseResponseStatus.java

@@ -7,19 +7,40 @@ public enum BaseResponseStatus {
     /**
      * 1000: 요청 성공
      */
-    SUCCESS(true, 1000, "요청에 성공하였습니다.");
+    SUCCESS(true, 1000, "요청에 성공하였습니다."),
 
     /**
      * 2000: Request 오류
      */
+    // user(2000~2099)
+    INVALID_USER_IDX(false, 2000, "잘못된 user Idx 입니다."),
+
+    // story(2100~2199)
+
+    // exhibition(2200~2299)
+    INVALID_EXHIBITION_IDX(false, 2200, "잘못된 전시회 Idx 입니다."),
+
+    // comment(2300~2399)
+
+
 
     /**
      * 3000: Response 오류
      */
+    // user(3000~3099)
+
+    // story(3100~3199)
+
+    // exhibition(3200~3299)
+
+    // comment(3300~3399)
+
+
 
     /**
      * 4000: DB, Server 오류
      */
+    DATABASE_ERROR(false, 4000, "데이터베이스 연결에 실패했습니다.");
 
     private final boolean isSuccess;
     private final int code;

place/src/main/java/com/umc/place/exhibition/controller/ExhibitionController.java

@@ -1,11 +1,28 @@
 package com.umc.place.exhibition.controller;
 
+import com.umc.place.common.BaseException;
+import com.umc.place.common.BaseResponse;
+import com.umc.place.exhibition.dto.GetExhibitionDetailRes;
+import com.umc.place.exhibition.service.ExhibitionService;
 import lombok.RequiredArgsConstructor;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 @RestController
 @RequestMapping("/exhibitions")
 @RequiredArgsConstructor
 public class ExhibitionController {
+    private final ExhibitionService exhibitionService;
+
+    /**
+     * [GET] 전시회 상세 조회
+     */
+    @ResponseBody
+    @GetMapping("/{exhibitionIdx}/{userIdx}")
+    public BaseResponse<GetExhibitionDetailRes> getExhibitionDetail(@PathVariable("exhibitionIdx") Long exhibitionIdx, @PathVariable Long userIdx) { // TODO: authService 생성 후 userIdx 삭제
+        try {
+            return new BaseResponse<>(exhibitionService.getExhibitionDetail(exhibitionIdx, userIdx)); // TODO: userIdx -> authService.getUserIdx() 수정
+        } catch (BaseException e) {
+            return new BaseResponse<>(e.getStatus());
+        }
+    }
 }

place/src/main/java/com/umc/place/exhibition/dto/GetExhibitionDetailRes.java

@@ -0,0 +1,36 @@
+package com.umc.place.exhibition.dto;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import lombok.*;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class GetExhibitionDetailRes {
+    private String exhibitionName;
+    @JsonFormat(shape=JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd", timezone = "Asia/Seoul")
+    private LocalDateTime startDate;
+    @JsonFormat(shape=JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd", timezone = "Asia/Seoul")
+    private LocalDateTime endDate;
+    private String exhibitionImg;
+    private String operatingTime;
+    private String location;
+    private Integer fee;
+    private String artist;
+    private List<Story> stories;
+
+    @Getter
+    @Setter
+    @AllArgsConstructor
+    @NoArgsConstructor
+    public static class Story {
+        private Long storyIdx;
+        private String storyImg;
+        private String nickname;
+        private String userImg;
+        private Boolean heart;
+    }
+}

place/src/main/java/com/umc/place/exhibition/entity/Category.java

@@ -1,5 +1,20 @@
 package com.umc.place.exhibition.entity;
 
+import lombok.Getter;
+
+@Getter
 public enum Category {
-    DESIGN, PHOTO
+    DESIGN(1, "디자인"),
+    INTERACTIVE(2, "체험형"), 
+    PHOTO(3, "사진"),
+    INSTALLATION(4, "설치미술"),
+    ETC(5, "기타");
+
+    private final int num;
+    private final String category;
+
+    Category(int num, String category) {
+        this.num = num;
+        this.category = category;
+    }
 }

place/src/main/java/com/umc/place/exhibition/entity/Exhibition.java

@@ -11,7 +11,7 @@
 @Entity
 @Getter
 @NoArgsConstructor
-//@DynamicInsert
+@DynamicInsert
 public class Exhibition extends BaseEntity {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -36,7 +36,7 @@ public class Exhibition extends BaseEntity {
     private String location;
 
     @Column
-    private Long fee;
+    private Integer fee;
 
     @Column(nullable = false)
     private String artist;

place/src/main/java/com/umc/place/exhibition/service/ExhibitionService.java

@@ -1,10 +1,77 @@
 package com.umc.place.exhibition.service;
 
+import com.umc.place.common.BaseException;
+import com.umc.place.exhibition.dto.GetExhibitionDetailRes;
+import com.umc.place.exhibition.entity.Exhibition;
+import com.umc.place.exhibition.repository.ExhibitionRepository;
+import com.umc.place.story.entity.Story;
+import com.umc.place.story.repository.StoryRepository;
+import com.umc.place.storyLike.repository.StoryLikeRepository;
+import com.umc.place.user.entity.User;
+import com.umc.place.user.repository.UserRepository;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+import java.util.stream.Collectors;
+
+import static com.umc.place.common.BaseResponseStatus.*;
+
 @Service
 @RequiredArgsConstructor
 public class ExhibitionService {
+    private final ExhibitionRepository exhibitionRepository;
+    private final StoryRepository storyRepository;
+    private final StoryLikeRepository storyLikeRepository;
+    private final UserRepository userRepository;
+
+    /**
+     * 전시회 상세 조회
+     * @param exhibitionIdx
+     * @return GetExhibitionDetailRes
+     * @throws BaseException
+     */
+    public GetExhibitionDetailRes getExhibitionDetail(Long exhibitionIdx, Long userIdx) throws BaseException{
+        try {
+            Exhibition exhibition = exhibitionRepository.findById(exhibitionIdx).orElseThrow(() -> new BaseException(INVALID_EXHIBITION_IDX));
+
+            List<GetExhibitionDetailRes.Story> storyList;
+            if (userRepository.existsById(userIdx)) {
+                User user = userRepository.findById(userIdx).orElseThrow(() -> new BaseException(INVALID_USER_IDX));
+                //List<GetExhibitionDetailRes.Story> storyList = getStoryList(exhibition, user);
+                storyList = getStoryList(exhibition, user);
+            } else {
+                storyList = getStoryListAnonymous(exhibition);
+            }
+
+            // TODO: S3 설정 완료 후 이미지 가져오는 부분 수정 필요
+            return new GetExhibitionDetailRes(exhibition.getExhibitionName(), exhibition.getStartDate(), exhibition.getEndDate(),
+                    exhibition.getExhibitionImg(), exhibition.getOperatingTime(), exhibition.getLocation(), exhibition.getFee(), exhibition.getArtist(), storyList);
+        } catch (BaseException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BaseException(DATABASE_ERROR);
+        }
+
+    }
+
+    // 회원) 스토리 조회
+    private List<GetExhibitionDetailRes.Story> getStoryList(Exhibition exhibition, User user) {
+        return storyRepository.findFirst2ByExhibition(exhibition).stream()
+                .map(story -> new GetExhibitionDetailRes.Story(story.getStoryIdx(), story.getStoryImg(), story.getUser().getNickname(),
+                        story.getUser().getUserImg(), getLike(user, story))).collect(Collectors.toList());
+    }
+
+    private Boolean getLike(User user, Story story) {
+        // 좋아요 눌렀으면 True 아니면 False
+        return storyLikeRepository.existsByUserAndStory(user, story);
+    }
+
+    // 비회원) 스토리 조회
+    private List<GetExhibitionDetailRes.Story> getStoryListAnonymous(Exhibition exhibition) {
+        return storyRepository.findFirst2ByExhibition(exhibition).stream()
+                .map(story -> new GetExhibitionDetailRes.Story(story.getStoryIdx(), story.getStoryImg(), story.getUser().getNickname(),
+                        story.getUser().getUserImg(), Boolean.FALSE)).collect(Collectors.toList());
+    }
 
 }

place/src/main/java/com/umc/place/exhibitionLike/entity/ExhibitionLike.java

@@ -12,7 +12,6 @@
 @Getter
 @NoArgsConstructor
 @DynamicInsert
-@Table(name = "exhibitionLikes")
 public class ExhibitionLike extends BaseEntity {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)

place/src/main/java/com/umc/place/story/repository/StoryRepository.java

@@ -1,9 +1,13 @@
 package com.umc.place.story.repository;
 
+import com.umc.place.exhibition.entity.Exhibition;
 import com.umc.place.story.entity.Story;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
+import java.util.List;
+
 @Repository
 public interface StoryRepository extends JpaRepository<Story, Long> {
+    List<Story> findFirst2ByExhibition(Exhibition exhibition);
 }

place/src/main/java/com/umc/place/storyLike/entity/StoryLike.java

@@ -12,7 +12,6 @@
 @Getter
 @NoArgsConstructor
 @DynamicInsert
-@Table(name = "storyLikes")
 public class StoryLike extends BaseEntity {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)

place/src/main/java/com/umc/place/storyLike/repository/StoryLikeRepository.java

@@ -1,9 +1,12 @@
 package com.umc.place.storyLike.repository;
 
+import com.umc.place.story.entity.Story;
 import com.umc.place.storyLike.entity.StoryLike;
+import com.umc.place.user.entity.User;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
 @Repository
 public interface StoryLikeRepository extends JpaRepository<StoryLike, Long> {
+    Boolean existsByUserAndStory(User user, Story story);
 }