후기 댓글 작성 + 삭제 기능 추가

src/main/java/likelion/MZConnent/api/member/LoginController.java

@@ -33,7 +33,7 @@ public ResponseEntity register(@Valid @RequestBody CreateMemberRequest request,
         Long memberId = loginService.createUser(request);
         log.info("회원가입 성공: {}", memberId);
 
-        return ResponseEntity.ok("회원가입 성공");
+        return ResponseEntity.ok(Map.of("message", "회원가입 성공"));
     }
 
     @PostMapping("/api/auth/login")
@@ -50,7 +50,7 @@ public ResponseEntity login(@Valid @RequestBody LoginMemberRequest request, Bind
     }
 
     @PostMapping("/api/auth/logout")
-    public ResponseEntity logout(@AuthenticationPrincipal UserPrinciple userPrinciple, @RequestHeader("Authorization") String authHeader) {
+    public ResponseEntity<Map<String, String>> logout(@AuthenticationPrincipal UserPrinciple userPrinciple, @RequestHeader("Authorization") String authHeader) {
         String email = userPrinciple.getEmail();
 
         log.info("로그아웃 이메일: {}", email);
@@ -60,4 +60,16 @@ public ResponseEntity logout(@AuthenticationPrincipal UserPrinciple userPrincipl
 
         return ResponseEntity.ok(Map.of("message", "로그아웃 성공"));
     }
+
+    @GetMapping("/api/auth/email")
+    public ResponseEntity<Map<String, String>> checkDuplicateEmail(@RequestParam("email") String email) {
+        loginService.checkDuplicateEmail(email);
+        return ResponseEntity.ok(Map.of("message", "이메일 중복 점검 성공"));
+    }
+
+    @GetMapping("/api/auth/username")
+    public ResponseEntity<Map<String, String>> checkDuplicateUsername(@RequestParam("username") String username) {
+        loginService.checkDuplicateUsername(username);
+        return ResponseEntity.ok(Map.of("message", "닉네임 중복 점검 성공"));
+    }
 }

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

@@ -0,0 +1,36 @@
+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);
+    }
+
+    @DeleteMapping("/api/reviews/{reviewId}/comments/{commentId}")
+    public ResponseEntity<Map<String, String>> deleteComment(@PathVariable("commentId") Long commentId, @AuthenticationPrincipal UserPrinciple userPrinciple) {
+        commentService.deleteComment(userPrinciple.getEmail(), commentId);
+        return ResponseEntity.ok(Map.of("message", "댓글 삭제 성공"));
+    }
+
+}

src/main/java/likelion/MZConnent/config/SecurityConfig.java

@@ -44,7 +44,7 @@ public class SecurityConfig {
 
     // 아무나 접근 가능한 URI
     private final String[] permitAllUrl = {"/error",
-            "/api/auth/login", // 회원
+            "/api/auth/login", "/api/auth/email", "/api/auth/username", // 회원
             "/api/categories/culture", "/api/cultures", "/api/cultures/**", // 문화
             "/api/reviews", // 후기
             "/api/categories/region", "/api/clubs/list",

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/member/LoginService.java

@@ -45,18 +45,6 @@ public Long createUser(CreateMemberRequest request) {
         // 비밀번호 정책에 맞는지 점검
         checkPasswordPolicy(request.getPassword());
 
-        // 이미 등록된 이메일인지 점검
-        if (memberRepository.existsByEmail(request.getEmail())) {
-            log.info("이미 등록된 이메일={}", request.getEmail());
-            throw new IllegalArgumentException("이미 등록된 이메일입니다.");
-        }
-
-        // 중복되는 닉네임인지 점검
-        if (memberRepository.existsByUsername(request.getUsername())) {
-            log.info("중복되는 닉네임={}", request.getEmail());
-            throw new IllegalArgumentException("중복되는 닉네임입니다.");
-        }
-
         Member member = Member.builder()
                 .email(request.getEmail())
                 .password(passwordEncoder.encode(request.getPassword())) // 비밀번호 암호화
@@ -121,6 +109,22 @@ public void logoout(String accessToken, String email) {
         accessTokenBlackList.setBlackList(accessToken, email);
     }
 
+    // 이메일 중복 점검
+    public void checkDuplicateEmail(String email) {
+        if (memberRepository.existsByEmail(email)) {
+            log.info("이미 등록된 이메일={}", email);
+            throw new IllegalArgumentException("이미 등록된 이메일입니다.");
+        }
+    }
+
+    // 닉네임 중복 점검
+    public void checkDuplicateUsername(String username) {
+        if (memberRepository.existsByUsername(username)) {
+            log.info("중복되는 닉네임={}", username);
+            throw new IllegalArgumentException("중복되는 닉네임입니다.");
+        }
+    }
+
 
     // 비밀번호 정책에 맞는지 점검하는 함수
     private void checkPasswordPolicy(String password) {
@@ -146,4 +150,5 @@ private void checkPassword(String password, Member member) {
         }
     }
 
+
 }

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

@@ -0,0 +1,82 @@
+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;
+import java.util.Optional;
+
+@Service
+@Slf4j
+@RequiredArgsConstructor
+public class CommentService {
+    private final MemberRepository memberRepository;
+    private final ReviewCommentRepository reviewCommentRepository;
+    private final ReviewRepository reviewRepository;
+
+
+    // 후기 댓글 작성
+    @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();
+    }
+
+    // 후기 댓글 삭제
+    @Transactional
+    public void deleteComment(String email, Long commentId) {
+        ReviewComment comment = findCommentById(commentId);
+        Member member = findMemberByEmail(email);
+        Review review = findReviewById(comment.getReview().getReviewId());
+
+        member.getReviewComments().remove(comment);
+        review.getReviewComments().remove(comment);
+        reviewCommentRepository.delete(comment);
+    }
+
+    private ReviewComment findCommentById(Long commentId) {
+        return reviewCommentRepository.findById(commentId).orElseThrow(() -> {
+            log.info("해당 후기 댓글이 존재하지 않음.");
+            return new IllegalArgumentException("해당 후기 댓글이 존재하지 않습니다.");
+        });
+    }
+
+    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 {
+
+}