[4주차] 변승현 /[feat] 추가 API 구현

src/main/java/com/example/demo/controller/CommentController.java

@@ -0,0 +1,47 @@
+package com.example.demo.controller;
+
+import com.example.demo.domain.comment.dto.CommentAdoptRequest;
+import com.example.demo.domain.comment.dto.CommentCreateRequest;
+import com.example.demo.domain.comment.dto.CommentCreateResponse;
+import com.example.demo.domain.comment.dto.CommentStatusResponse;
+import com.example.demo.domain.comment.service.CommentService;
+import com.example.demo.global.response.ApiResponse;
+import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequiredArgsConstructor
+public class CommentController {
+
+    private final CommentService commentService;
+
+    @PostMapping("/api/posts/{postId}/comments")
+    public ResponseEntity<ApiResponse<CommentCreateResponse>> createComment(
+            @PathVariable Long postId,
+            @Valid @RequestBody CommentCreateRequest request
+    ) {
+        return ResponseEntity.status(HttpStatus.CREATED)
+                .body(ApiResponse.success(
+                        "COMMENT_CREATE_SUCCESS",
+                        "댓글 생성 성공",
+                        commentService.createComment(postId, request)
+                ));
+    }
+
+    @PostMapping("/api/comments/{commentId}/adoption")
+    public ResponseEntity<ApiResponse<CommentStatusResponse>> adoptComment(
+            @PathVariable Long commentId,
+            @Valid @RequestBody CommentAdoptRequest request
+    ) {
+        return ResponseEntity.ok(
+                ApiResponse.success(
+                        "COMMENT_ADOPT_SUCCESS",
+                        "댓글 채택 성공",
+                        commentService.adoptComment(commentId, request.userId())
+                )
+        );
+    }
+}

src/main/java/com/example/demo/controller/ReportController.java

@@ -0,0 +1,60 @@
+package com.example.demo.controller;
+
+import com.example.demo.domain.report.dto.ReportCreateRequest;
+import com.example.demo.domain.report.dto.ReportCreateResponse;
+import com.example.demo.domain.report.dto.ReportResolveRequest;
+import com.example.demo.domain.report.dto.ReportResolveResponse;
+import com.example.demo.domain.report.service.ReportService;
+import com.example.demo.global.response.ApiResponse;
+import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequiredArgsConstructor
+public class ReportController {
+
+    private final ReportService reportService;
+
+    @PostMapping("/api/posts/{postId}/reports")
+    public ResponseEntity<ApiResponse<ReportCreateResponse>> reportPost(
+            @PathVariable Long postId,
+            @Valid @RequestBody ReportCreateRequest request
+    ) {
+        return ResponseEntity.status(HttpStatus.CREATED)
+                .body(ApiResponse.success(
+                        "POST_REPORT_SUCCESS",
+                        "게시글 신고 접수 성공",
+                        reportService.reportPost(postId, request)
+                ));
+    }
+
+    @PostMapping("/api/comments/{commentId}/reports")
+    public ResponseEntity<ApiResponse<ReportCreateResponse>> reportComment(
+            @PathVariable Long commentId,
+            @Valid @RequestBody ReportCreateRequest request
+    ) {
+        return ResponseEntity.status(HttpStatus.CREATED)
+                .body(ApiResponse.success(
+                        "COMMENT_REPORT_SUCCESS",
+                        "댓글 신고 접수 성공",
+                        reportService.reportComment(commentId, request)
+                ));
+    }
+
+    @PatchMapping("/api/reports/{reportId}/resolve")
+    public ResponseEntity<ApiResponse<ReportResolveResponse>> resolveReport(
+            @PathVariable Long reportId,
+            @Valid @RequestBody ReportResolveRequest request
+    ) {
+        return ResponseEntity.ok(
+                ApiResponse.success(
+                        "REPORT_RESOLVE_SUCCESS",
+                        "신고 처리 완료",
+                        reportService.resolveReport(reportId, request)
+                )
+        );
+    }
+}

src/main/java/com/example/demo/domain/comment/dto/CommentAdoptRequest.java

@@ -0,0 +1,9 @@
+package com.example.demo.domain.comment.dto;
+
+import jakarta.validation.constraints.NotNull;
+
+public record CommentAdoptRequest(
+        @NotNull(message = "userId는 필수입니다.")
+        Long userId
+) {
+}

src/main/java/com/example/demo/domain/comment/dto/CommentCreateRequest.java

@@ -0,0 +1,13 @@
+package com.example.demo.domain.comment.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+
+public record CommentCreateRequest(
+        @NotNull(message = "userId는 필수입니다.")
+        Long userId,
+
+        @NotBlank(message = "content는 필수입니다.")
+        String content
+) {
+}

src/main/java/com/example/demo/domain/comment/dto/CommentCreateResponse.java

@@ -0,0 +1,9 @@
+package com.example.demo.domain.comment.dto;
+
+import com.example.demo.domain.comment.entity.CommentStatus;
+
+public record CommentCreateResponse(
+        Long commentId,
+        CommentStatus status
+) {
+}

src/main/java/com/example/demo/domain/comment/dto/CommentStatusResponse.java

@@ -0,0 +1,9 @@
+package com.example.demo.domain.comment.dto;
+
+import com.example.demo.domain.comment.entity.CommentStatus;
+
+public record CommentStatusResponse(
+        Long commentId,
+        CommentStatus status
+) {
+}

src/main/java/com/example/demo/domain/comment/entity/Comment.java

@@ -32,5 +32,26 @@ public class Comment extends BaseEntity {
     @Column(nullable = false, columnDefinition = "TEXT")
     private String content;
 
-
-}
+    @Enumerated(EnumType.STRING)
+    @Column(nullable = false, length = 20)
+    private CommentStatus status;
+
+    private Comment(User user, Post post, String content) {
+        this.user = user;
+        this.post = post;
+        this.content = content;
+        this.status = CommentStatus.ACTIVE;
+    }
+
+    public static Comment of(User user, Post post, String content) {
+        return new Comment(user, post, content);
+    }
+
+    public void hide() {
+        this.status = CommentStatus.HIDDEN;
+    }
+
+    public void adopt() {
+        this.status = CommentStatus.ADOPTED;
+    }
+}

src/main/java/com/example/demo/domain/comment/entity/CommentStatus.java

@@ -0,0 +1,7 @@
+package com.example.demo.domain.comment.entity;
+
+public enum CommentStatus {
+    ACTIVE,
+    HIDDEN,
+    ADOPTED
+}

src/main/java/com/example/demo/domain/comment/repository/CommentRepository.java

@@ -0,0 +1,9 @@
+package com.example.demo.domain.comment.repository;
+
+import com.example.demo.domain.comment.entity.Comment;
+import com.example.demo.domain.comment.entity.CommentStatus;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface CommentRepository extends JpaRepository<Comment, Long> {
+    boolean existsByPostIdAndStatus(Long postId, CommentStatus status);
+}

src/main/java/com/example/demo/domain/comment/service/CommentService.java

@@ -0,0 +1,78 @@
+package com.example.demo.domain.comment.service;
+
+import com.example.demo.domain.comment.dto.CommentCreateRequest;
+import com.example.demo.domain.comment.dto.CommentCreateResponse;
+import com.example.demo.domain.comment.dto.CommentStatusResponse;
+import com.example.demo.domain.comment.entity.Comment;
+import com.example.demo.domain.comment.entity.CommentStatus;
+import com.example.demo.domain.comment.repository.CommentRepository;
+import com.example.demo.domain.post.entity.Post;
+import com.example.demo.domain.post.entity.PostStatus;
+import com.example.demo.domain.post.repository.PostRepository;
+import com.example.demo.domain.user.entity.User;
+import com.example.demo.domain.user.repository.UserRepository;
+import com.example.demo.global.exception.CustomException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true)
+public class CommentService {
+
+    private final CommentRepository commentRepository;
+    private final PostRepository postRepository;
+    private final UserRepository userRepository;
+
+    @Transactional
+    public CommentCreateResponse createComment(Long postId, CommentCreateRequest request) {
+        Post post = findPost(postId);
+        User user = findUser(request.userId());
+
+        if (post.getStatus() == PostStatus.HIDDEN) {
+            throw new CustomException(HttpStatus.BAD_REQUEST, "POST_HIDDEN", "숨김 처리된 게시글에는 댓글을 작성할 수 없습니다.");
+        }
+
+        Comment comment = commentRepository.save(Comment.of(user, post, request.content()));
+        return new CommentCreateResponse(comment.getId(), comment.getStatus());
+    }
+
+    @Transactional
+    public CommentStatusResponse adoptComment(Long commentId, Long userId) {
+        Comment comment = findComment(commentId);
+        Post post = comment.getPost();
+
+        if (!post.getUser().getId().equals(userId)) {
+            throw new CustomException(HttpStatus.FORBIDDEN, "FORBIDDEN", "댓글 채택 권한이 없습니다.");
+        }
+        if (post.getStatus() == PostStatus.HIDDEN) {
+            throw new CustomException(HttpStatus.BAD_REQUEST, "POST_HIDDEN", "숨김 처리된 게시글에서는 댓글을 채택할 수 없습니다.");
+        }
+        if (comment.getStatus() == CommentStatus.HIDDEN) {
+            throw new CustomException(HttpStatus.BAD_REQUEST, "COMMENT_HIDDEN", "숨김 처리된 댓글은 채택할 수 없습니다.");
+        }
+        if (commentRepository.existsByPostIdAndStatus(post.getId(), CommentStatus.ADOPTED)) {
+            throw new CustomException(HttpStatus.CONFLICT, "COMMENT_ALREADY_ADOPTED", "이미 채택된 댓글이 있습니다.");
+        }
+
+        comment.adopt();
+        return new CommentStatusResponse(comment.getId(), comment.getStatus());
+    }
+
+    public Comment findComment(Long commentId) {
+        return commentRepository.findById(commentId)
+                .orElseThrow(() -> new CustomException(HttpStatus.NOT_FOUND, "COMMENT_NOT_FOUND", "해당 댓글을 찾을 수 없습니다."));
+    }
+
+    private Post findPost(Long postId) {
+        return postRepository.findById(postId)
+                .orElseThrow(() -> new CustomException(HttpStatus.NOT_FOUND, "POST_NOT_FOUND", "해당 게시글을 찾을 수 없습니다."));
+    }
+
+    private User findUser(Long userId) {
+        return userRepository.findById(userId)
+                .orElseThrow(() -> new CustomException(HttpStatus.NOT_FOUND, "USER_NOT_FOUND", "해당 사용자를 찾을 수 없습니다."));
+    }
+}

src/main/java/com/example/demo/domain/post/dto/PostDetailResponse.java

@@ -1,12 +1,15 @@
 package com.example.demo.domain.post.dto;
 
+import com.example.demo.domain.post.entity.PostStatus;
+
 import java.time.LocalDateTime;
 
 public record PostDetailResponse(
         Long postId,
         String title,
         String content,
         String imageUrl,
+        PostStatus status,
         Long authorId,
         String author,
         LocalDateTime createdAt,

src/main/java/com/example/demo/domain/post/dto/PostListItemResponse.java

@@ -1,12 +1,15 @@
 package com.example.demo.domain.post.dto;
 
+import com.example.demo.domain.post.entity.PostStatus;
+
 import java.time.LocalDateTime;
 
 public record PostListItemResponse(
         Long postId,
         String title,
         String content,
         String thumbnailImageUrl,
+        PostStatus status,
         String author,
         LocalDateTime createdAt
 ) {

src/main/java/com/example/demo/domain/post/entity/Post.java

@@ -38,6 +38,10 @@ public class Post extends BaseEntity {
     @Column(name = "image_url")
     private String imageUrl;
 
+    @Enumerated(EnumType.STRING)
+    @Column(nullable = false, length = 20)
+    private PostStatus status;
+
     @OneToMany(mappedBy = "post", cascade = CascadeType.ALL, orphanRemoval = true)
     private List<Comment> comments = new ArrayList<>();
 
@@ -46,6 +50,7 @@ private Post(User user, String title, String content, String imageUrl) {
         this.title = title;
         this.content = content;
         this.imageUrl = imageUrl;
+        this.status = PostStatus.ACTIVE;
     }
 
     public static Post of(User user, String title, String content, String imageUrl) {
@@ -61,4 +66,8 @@ public void update(String title, String content, String imageUrl) {
         }
         this.imageUrl = imageUrl;
     }
-}
+
+    public void hide() {
+        this.status = PostStatus.HIDDEN;
+    }
+}

src/main/java/com/example/demo/domain/post/entity/PostStatus.java

@@ -0,0 +1,6 @@
+package com.example.demo.domain.post.entity;
+
+public enum PostStatus {
+    ACTIVE,
+    HIDDEN
+}

src/main/java/com/example/demo/domain/post/service/PostService.java

@@ -31,6 +31,7 @@ public PostListResponse getPosts(int page, int size) {
                                 post.getTitle(),
                                 post.getContent(),
                                 post.getImageUrl(),
+                                post.getStatus(),
                                 post.getUser().getName(),
                                 post.getCreatedAt()
                         ))
@@ -53,6 +54,7 @@ public PostDetailResponse getPost(Long postId) {
                 post.getTitle(),
                 post.getContent(),
                 post.getImageUrl(),
+                post.getStatus(),
                 post.getUser().getId(),
                 post.getUser().getName(),
                 post.getCreatedAt(),

src/main/java/com/example/demo/domain/report/dto/ReportCreateRequest.java

@@ -0,0 +1,13 @@
+package com.example.demo.domain.report.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+
+public record ReportCreateRequest(
+        @NotNull(message = "reporterId는 필수입니다.")
+        Long reporterId,
+
+        @NotBlank(message = "reason은 필수입니다.")
+        String reason
+) {
+}

src/main/java/com/example/demo/domain/report/dto/ReportCreateResponse.java

@@ -0,0 +1,11 @@
+package com.example.demo.domain.report.dto;
+
+import com.example.demo.domain.report.entity.ReportStatus;
+import com.example.demo.domain.report.entity.ReportTargetType;
+
+public record ReportCreateResponse(
+        Long reportId,
+        ReportTargetType targetType,
+        ReportStatus status
+) {
+}