feat: 후기 댓글 작성 기능 추가

후기 댓글 작성 기능 추가함

src/main/java/likelion/MZConnent/api/review/CommentController.java

@@ -0,0 +1,30 @@
+package likelion.MZConnent.api.review;
+
+import likelion.MZConnent.dto.review.request.SaveCommentRequest;
+import likelion.MZConnent.dto.review.response.SaveCommentResponse;
+import likelion.MZConnent.jwt.principle.UserPrinciple;
+import likelion.MZConnent.service.review.CommentService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.Map;
+
+@RestController
+@RequiredArgsConstructor
+@Slf4j
+public class CommentController {
+    private final CommentService commentService;
+
+    @PostMapping("/api/reviews/{reviewId}/comments")
+    public ResponseEntity<SaveCommentResponse> saveComment(@RequestBody Map<String, String> request, @PathVariable("reviewId") Long reviewId, @AuthenticationPrincipal UserPrinciple userPrinciple) {
+        SaveCommentResponse comment = commentService.saveComment(userPrinciple.getEmail(), reviewId, request.get("content"));
+
+        log.info("댓글 작성: {}", comment);
+
+        return ResponseEntity.ok(comment);
+    }
+
+}

src/main/java/likelion/MZConnent/dto/member/MemberProfileDto.java

@@ -2,6 +2,7 @@
 
 import likelion.MZConnent.domain.member.Member;
 import lombok.AccessLevel;
+import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
@@ -12,6 +13,7 @@ public class MemberProfileDto {
     private String username;
     private String profileImageUrl = ""; // TODO: 기본 이미지로 초기화
 
+    @Builder
     public MemberProfileDto(Member member) {
         this.userId = member.getId();
         this.username = member.getUsername();

src/main/java/likelion/MZConnent/dto/review/request/SaveCommentRequest.java

@@ -0,0 +1,14 @@
+package likelion.MZConnent.dto.review.request;
+
+import likelion.MZConnent.domain.member.Member;
+import likelion.MZConnent.domain.review.ReviewComment;
+import likelion.MZConnent.dto.review.response.SaveCommentResponse;
+import lombok.*;
+
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor
+public class SaveCommentRequest {
+    private Long reviewId;
+    private String content;
+}

src/main/java/likelion/MZConnent/dto/review/response/SaveCommentResponse.java

@@ -0,0 +1,25 @@
+package likelion.MZConnent.dto.review.response;
+
+import likelion.MZConnent.domain.review.ReviewComment;
+import likelion.MZConnent.dto.member.MemberProfileDto;
+import lombok.*;
+
+@Getter
+@ToString
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class SaveCommentResponse {
+    private Long commentId;
+    private Long reviewId;
+    private MemberProfileDto commenter;
+    private String content;
+
+
+    @Builder
+    public SaveCommentResponse(ReviewComment comment) {
+        this.commentId = comment.getCommentId();
+        this.reviewId = comment.getReview().getReviewId();
+        this.commenter = MemberProfileDto.builder()
+                .member(comment.getMember()).build();
+        this.content = comment.getContent();
+    }
+}

src/main/java/likelion/MZConnent/service/review/CommentService.java

@@ -0,0 +1,57 @@
+package likelion.MZConnent.service.review;
+
+import likelion.MZConnent.domain.member.Member;
+import likelion.MZConnent.domain.review.Review;
+import likelion.MZConnent.domain.review.ReviewComment;
+import likelion.MZConnent.dto.culture.request.CreateCultureRequest;
+import likelion.MZConnent.dto.review.request.SaveCommentRequest;
+import likelion.MZConnent.dto.review.response.SaveCommentResponse;
+import likelion.MZConnent.repository.member.MemberRepository;
+import likelion.MZConnent.repository.review.ReviewCommentRepository;
+import likelion.MZConnent.repository.review.ReviewRepository;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.time.LocalDateTime;
+
+@Service
+@Slf4j
+@RequiredArgsConstructor
+public class CommentService {
+    private final MemberRepository memberRepository;
+    private final ReviewCommentRepository reviewCommentRepository;
+    private final ReviewRepository reviewRepository;
+
+    @Transactional
+    public SaveCommentResponse saveComment(String email, Long reviewId, String content) {
+        Member member = findMemberByEmail(email);
+        Review review = findReviewById(reviewId);
+
+        ReviewComment comment = ReviewComment.builder()
+                .content(content)
+                .createdDate(LocalDateTime.now())
+                .member(member)
+                .review(review)
+                .build();
+
+        reviewCommentRepository.save(comment);
+
+        return SaveCommentResponse.builder().comment(comment).build();
+    }
+
+    private Review findReviewById(Long reviewId ) {
+        return reviewRepository.findById(reviewId).orElseThrow(() -> {
+            log.info("후기가 존재하지 않음.");
+            return new IllegalArgumentException("후기가 존재하지 않습니다.");
+        });
+    }
+
+    private Member findMemberByEmail(String email) {
+        return memberRepository.findByEmail(email).orElseThrow(() -> {
+            log.info("회원이 존재하지 않음.");
+            return new IllegalArgumentException("회원이 존재하지 않습니다.");
+        });
+    }
+}

src/test/java/likelion/MZConnent/service/review/CommentServiceTest.java

@@ -0,0 +1,4 @@
+import static org.junit.jupiter.api.Assertions.*;
+class CommentServiceTest {
+
+}