Merge pull request #34 from kookmin-sw/BE

BE #18  #22  #25

Author: wjdwlghks

backend/src/main/java/com/project/capstone/book/domain/Book.java

@@ -1,6 +1,8 @@
 package com.project.capstone.book.domain;
 
 import com.project.capstone.club.domain.Club;
+import com.project.capstone.content.domain.Content;
+import com.project.capstone.quiz.domain.Quiz;
 import jakarta.persistence.*;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
@@ -32,4 +34,10 @@ public class Book {
 
     @OneToMany(mappedBy = "book")
     private List<Club> clubs = new ArrayList<>();
+
+    @OneToMany(mappedBy = "book")
+    private List<Content> contents = new ArrayList<>();
+
+    @OneToMany(mappedBy = "book")
+    private List<Quiz> quizzes = new ArrayList<>();
 }

backend/src/main/java/com/project/capstone/book/domain/BookRepository.java

@@ -0,0 +1,9 @@
+package com.project.capstone.book.domain;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface BookRepository extends JpaRepository<Book, Long> {
+    Optional<Book> findBookById(Long id);
+}

backend/src/main/java/com/project/capstone/book/exception/BookException.java

@@ -0,0 +1,10 @@
+package com.project.capstone.book.exception;
+
+import com.project.capstone.common.exception.BaseException;
+import com.project.capstone.common.exception.ExceptionType;
+
+public class BookException extends BaseException {
+    public BookException(ExceptionType exceptionType) {
+        super(exceptionType);
+    }
+}

backend/src/main/java/com/project/capstone/book/exception/BookExceptionType.java

@@ -0,0 +1,33 @@
+package com.project.capstone.book.exception;
+
+import com.project.capstone.common.exception.ExceptionType;
+import lombok.AllArgsConstructor;
+import org.springframework.http.HttpStatus;
+
+import static org.springframework.http.HttpStatus.NOT_FOUND;
+
+@AllArgsConstructor
+public enum BookExceptionType implements ExceptionType {
+
+    BOOK_NOT_FOUND(NOT_FOUND, 801, "해당 책을 찾을 수 없습니다.")
+    ;
+
+    private final HttpStatus status;
+    private final int exceptionCode;
+    private final String message;
+
+    @Override
+    public HttpStatus httpStatus() {
+        return status;
+    }
+
+    @Override
+    public int exceptionCode() {
+        return exceptionCode;
+    }
+
+    @Override
+    public String message() {
+        return message;
+    }
+}

backend/src/main/java/com/project/capstone/club/controller/dto/ClubResponse.java

@@ -1,9 +1,12 @@
 package com.project.capstone.club.controller.dto;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.project.capstone.club.domain.Club;
 import com.project.capstone.club.domain.PublicStatus;
+import com.project.capstone.post.domain.Post;
 
 import java.time.LocalDateTime;
+import java.util.List;
 
 public record ClubResponse (
         Long id,
@@ -12,9 +15,11 @@ public record ClubResponse (
         String name,
         LocalDateTime createdAt,
         int maximum,
-        PublicStatus publicstatus
+        PublicStatus publicstatus,
+        List<Post> posts
+
 ) {
     public ClubResponse(Club club) {
-        this(club.getId(), club.getBook() == null ? null : club.getBook().getId(), club.getTopic(), club.getName(), club.getCreatedAt(), club.getMaximum(), club.getPublicStatus());
+        this(club.getId(), club.getBook() == null ? null : club.getBook().getId(), club.getTopic(), club.getName(), club.getCreatedAt(), club.getMaximum(), club.getPublicStatus(), club.getPosts());
     }
 }

backend/src/main/java/com/project/capstone/club/domain/Club.java

@@ -1,9 +1,12 @@
 package com.project.capstone.club.domain;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonManagedReference;
 import com.project.capstone.book.domain.Book;
 import com.project.capstone.memberclub.domain.MemberClub;
 import com.project.capstone.content.domain.Content;
 import com.project.capstone.post.domain.Post;
+import com.project.capstone.quiz.domain.Quiz;
 import jakarta.persistence.*;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
@@ -40,15 +43,22 @@ public class Club {
     private PublicStatus publicStatus;
     private Integer password;
 
+    @JsonManagedReference
     @OneToMany(mappedBy = "club")
     private List<Post> posts = new ArrayList<>();
 
+    @JsonManagedReference
     @OneToMany(mappedBy = "club")
     private List<MemberClub> members = new ArrayList<>();
 
+    @JsonManagedReference
     @OneToMany(mappedBy = "club")
     private List<Content> contents = new ArrayList<>();
 
+    @JsonManagedReference
+    @OneToMany(mappedBy = "club")
+    private List<Quiz> quizzes = new ArrayList<>();
+
     @ManyToOne
     private Book book;
 

backend/src/main/java/com/project/capstone/club/domain/PublicStatus.java

@@ -13,7 +13,7 @@ public enum PublicStatus {
     private final String description;
 
 
-    @JsonCreator
+    @JsonCreator(mode = JsonCreator.Mode.DELEGATING)
     public static PublicStatus from(String status) {
         for (PublicStatus publicStatus : PublicStatus.values()) {
             if (publicStatus.getDescription().equals(status)) {

backend/src/main/java/com/project/capstone/comment/controller/CommentController.java

@@ -0,0 +1,33 @@
+package com.project.capstone.comment.controller;
+
+import com.project.capstone.auth.domain.PrincipalDetails;
+import com.project.capstone.comment.controller.dto.CommentResponse;
+import com.project.capstone.comment.controller.dto.CreateCommentRequest;
+import com.project.capstone.comment.service.CommentService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/comment")
+public class CommentController {
+
+    private final CommentService commentService;
+
+    @PostMapping("create")
+    public ResponseEntity<?> createComment(@AuthenticationPrincipal PrincipalDetails details,
+                                           @RequestParam Long postId, @RequestBody CreateCommentRequest request) {
+        commentService.createPost(details.getUserId(), postId, request);
+        return ResponseEntity.ok().body("댓글 생성 완료");
+    }
+
+    @GetMapping("/{id}")
+    public ResponseEntity<?> getComment(@AuthenticationPrincipal PrincipalDetails details,
+                                        @PathVariable Long id) {
+        CommentResponse commentResponse = commentService.getComment(details.getUserId(), id);
+        return ResponseEntity.ok().body(commentResponse);
+    }
+
+}

backend/src/main/java/com/project/capstone/comment/controller/dto/CommentResponse.java

@@ -0,0 +1,18 @@
+package com.project.capstone.comment.controller.dto;
+
+import com.project.capstone.comment.domain.Comment;
+
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+public record CommentResponse(
+        Long id,
+        Long postId,
+        UUID memberId,
+        String body,
+        LocalDateTime createdAt
+) {
+    public CommentResponse(Comment comment) {
+        this(comment.getId(), comment.getPost().getId(), comment.getMember().getId(), comment.getBody(), comment.getCreatedAt());
+    }
+}

backend/src/main/java/com/project/capstone/comment/controller/dto/CreateCommentRequest.java

@@ -0,0 +1,6 @@
+package com.project.capstone.comment.controller.dto;
+
+public record CreateCommentRequest (
+        String body
+) {
+}

backend/src/main/java/com/project/capstone/comment/domain/Comment.java

@@ -1,5 +1,6 @@
 package com.project.capstone.comment.domain;
 
+import com.fasterxml.jackson.annotation.JsonBackReference;
 import com.project.capstone.member.domain.Member;
 import com.project.capstone.post.domain.Post;
 import jakarta.persistence.*;
@@ -27,9 +28,11 @@ public class Comment {
     @Column(name = "created_at")
     private LocalDateTime createdAt;
 
+    @JsonBackReference
     @ManyToOne
     private Member member;
 
+    @JsonBackReference
     @ManyToOne
     private Post post;
 }

backend/src/main/java/com/project/capstone/comment/domain/CommentRepository.java

@@ -0,0 +1,9 @@
+package com.project.capstone.comment.domain;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface CommentRepository extends JpaRepository<Comment, Long> {
+    Optional<Comment> findCommentById(Long id);
+}

backend/src/main/java/com/project/capstone/comment/exception/CommentException.java

@@ -0,0 +1,10 @@
+package com.project.capstone.comment.exception;
+
+import com.project.capstone.common.exception.BaseException;
+import com.project.capstone.common.exception.ExceptionType;
+
+public class CommentException extends BaseException {
+    public CommentException(ExceptionType exceptionType) {
+        super(exceptionType);
+    }
+}

backend/src/main/java/com/project/capstone/comment/exception/CommentExceptionType.java

@@ -0,0 +1,32 @@
+package com.project.capstone.comment.exception;
+
+import com.project.capstone.common.exception.ExceptionType;
+import lombok.AllArgsConstructor;
+import org.springframework.http.HttpStatus;
+
+import static org.springframework.http.HttpStatus.NOT_FOUND;
+
+@AllArgsConstructor
+public enum CommentExceptionType implements ExceptionType {
+    COMMENT_NOT_FOUND(NOT_FOUND, 501, "해당 댓글을 찾을 수 없습니다.");
+    ;
+
+    private final HttpStatus status;
+    private final int exceptionCode;
+    private final String message;
+
+    @Override
+    public HttpStatus httpStatus() {
+        return status;
+    }
+
+    @Override
+    public int exceptionCode() {
+        return exceptionCode;
+    }
+
+    @Override
+    public String message() {
+        return message;
+    }
+}

backend/src/main/java/com/project/capstone/comment/service/CommentService.java

@@ -0,0 +1,62 @@
+package com.project.capstone.comment.service;
+
+import com.project.capstone.comment.controller.dto.CommentResponse;
+import com.project.capstone.comment.controller.dto.CreateCommentRequest;
+import com.project.capstone.comment.domain.Comment;
+import com.project.capstone.comment.domain.CommentRepository;
+import com.project.capstone.comment.exception.CommentException;
+import com.project.capstone.member.domain.Member;
+import com.project.capstone.member.domain.MemberRepository;
+import com.project.capstone.member.exception.MemberException;
+import com.project.capstone.post.domain.Post;
+import com.project.capstone.post.domain.PostRepository;
+import com.project.capstone.post.exception.PostException;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+import java.util.UUID;
+
+import static com.project.capstone.comment.exception.CommentExceptionType.COMMENT_NOT_FOUND;
+import static com.project.capstone.member.exception.MemberExceptionType.MEMBER_NOT_FOUND;
+import static com.project.capstone.post.exception.PostExceptionType.POST_NOT_FOUND;
+
+@Service
+@RequiredArgsConstructor
+@Slf4j
+public class CommentService {
+
+    private final CommentRepository commentRepository;
+    private final MemberRepository memberRepository;
+    private final PostRepository postRepository;
+
+    public void createPost(String userId, Long postId, CreateCommentRequest request) {
+        Member member = memberRepository.findMemberById(UUID.fromString(userId)).orElseThrow(
+                () -> new MemberException(MEMBER_NOT_FOUND)
+        );
+
+        Post post = postRepository.findPostById(postId).orElseThrow(
+                () -> new PostException(POST_NOT_FOUND)
+        );
+
+        Comment saved = commentRepository.save(Comment.builder()
+                .body(request.body())
+                .member(member)
+                .post(post)
+                .build());
+
+        member.getComments().add(saved);
+        post.getComments().add(saved);
+    }
+
+
+    public CommentResponse getComment(String userId, Long id) {
+        if (memberRepository.findMemberById(UUID.fromString(userId)).isEmpty()) {
+            throw new MemberException(MEMBER_NOT_FOUND);
+        }
+        Comment comment = commentRepository.findCommentById(id).orElseThrow(
+                () -> new CommentException(COMMENT_NOT_FOUND)
+        );
+        return new CommentResponse(comment);
+    }
+}

backend/src/main/java/com/project/capstone/content/controller/ContentController.java

@@ -0,0 +1,43 @@
+package com.project.capstone.content.controller;
+
+import com.project.capstone.auth.domain.PrincipalDetails;
+import com.project.capstone.content.controller.dto.ContentCreateRequest;
+import com.project.capstone.content.controller.dto.ContentResponse;
+import com.project.capstone.content.service.ContentService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/content")
+public class ContentController {
+
+    private final ContentService contentService;
+
+    // 컨텐츠 생성
+    @PostMapping("/create")
+    public ResponseEntity<?> createContent(@AuthenticationPrincipal PrincipalDetails details,
+                                           @RequestBody ContentCreateRequest request,
+                                           @RequestParam Long bookId, @RequestParam(required = false) Long clubId) {
+        contentService.createContent(details.getUserId(), request, bookId, clubId);
+        return ResponseEntity.ok().body("컨텐츠 생성 완료");
+    }
+
+    // 단일 컨텐츠 조회
+    @GetMapping("/{id}")
+    public ResponseEntity<ContentResponse> getContent(@PathVariable Long id) {
+        ContentResponse contentResponse = contentService.getContent(id);
+        return ResponseEntity.ok().body(contentResponse);
+    }
+
+    // 컨텐츠 종류별 조회
+    @GetMapping("/get")
+    public ResponseEntity<List<ContentResponse>> getContents(@RequestParam String type) {
+        List<ContentResponse> contentResponseList = contentService.getContents(type);
+        return ResponseEntity.ok().body(contentResponseList);
+    }
+}

backend/src/main/java/com/project/capstone/content/controller/dto/ContentCreateRequest.java

@@ -0,0 +1,10 @@
+package com.project.capstone.content.controller.dto;
+
+import com.project.capstone.content.domain.ContentType;
+
+public record ContentCreateRequest(
+        ContentType contentType,
+        String title,
+        String body
+) {
+}