From 8b7bad96445f4c97e848098791c8f35dbe02f5b6 Mon Sep 17 00:00:00 2001
From: jae-2024 <dbswotkd2019@naver.com>
Date: Mon, 9 Mar 2026 13:59:20 +0900
Subject: [PATCH] =?UTF-8?q?[#68]=20Refactor:=20commentSystem=20=EC=8A=B9?=
 =?UTF-8?q?=EC=9D=B8,=20=EA=B1=B0=EC=A0=88=20=EB=A9=94=EC=8B=9C=EC=A7=80?=
 =?UTF-8?q?=20=EC=82=AD=EC=A0=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Mua_backend/domain/comment/entity/Comment.java   |  4 ++++
 .../domain/comment/repository/CommentRepository.java |  3 +++
 .../domain/comment/service/CommentService.java       |  9 +++++++++
 .../participation/service/ParticipationService.java  | 12 ++----------
 4 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/src/main/java/Mua/Mua_backend/domain/comment/entity/Comment.java b/src/main/java/Mua/Mua_backend/domain/comment/entity/Comment.java
index c050580..10707fa 100644
--- a/src/main/java/Mua/Mua_backend/domain/comment/entity/Comment.java
+++ b/src/main/java/Mua/Mua_backend/domain/comment/entity/Comment.java
@@ -114,4 +114,8 @@ public void delete() {
         this.isDeleted = true;
         this.description = "삭제된 댓글입니다.";
     }
+
+    public void changeType(CommentType type) {
+        this.commentType = type;
+    }
 }
diff --git a/src/main/java/Mua/Mua_backend/domain/comment/repository/CommentRepository.java b/src/main/java/Mua/Mua_backend/domain/comment/repository/CommentRepository.java
index 3b2958c..8f5f79f 100644
--- a/src/main/java/Mua/Mua_backend/domain/comment/repository/CommentRepository.java
+++ b/src/main/java/Mua/Mua_backend/domain/comment/repository/CommentRepository.java
@@ -4,10 +4,13 @@
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.List;
+import java.util.Optional;
 
 public interface CommentRepository extends JpaRepository<Comment, Long> {
 
     List<Comment> findByFeedIdOrderByCreatedAtAsc(Long feedId);
 
     List<Comment> findByParentIdOrderByCreatedAtAsc(Long parentId);
+
+    Optional<Comment> findByParticipationId(Long participationId);
 }
\ No newline at end of file
diff --git a/src/main/java/Mua/Mua_backend/domain/comment/service/CommentService.java b/src/main/java/Mua/Mua_backend/domain/comment/service/CommentService.java
index 77e380c..4b4c617 100644
--- a/src/main/java/Mua/Mua_backend/domain/comment/service/CommentService.java
+++ b/src/main/java/Mua/Mua_backend/domain/comment/service/CommentService.java
@@ -119,4 +119,13 @@ public void deleteComment(Long commentId, Long memberId) {
 
         comment.delete();
     }
+
+    // 참가 승인, 거절에 따른 댓글 상태변환
+    public void updateEventComment(Long participationId, CommentType type) {
+
+        Comment comment = commentRepository.findByParticipationId(participationId)
+                .orElseThrow(() -> new IllegalArgumentException("댓글이 존재하지 않습니다."));
+
+        comment.changeType(type);
+    }
 }
diff --git a/src/main/java/Mua/Mua_backend/domain/participation/service/ParticipationService.java b/src/main/java/Mua/Mua_backend/domain/participation/service/ParticipationService.java
index 3371486..4c659ea 100644
--- a/src/main/java/Mua/Mua_backend/domain/participation/service/ParticipationService.java
+++ b/src/main/java/Mua/Mua_backend/domain/participation/service/ParticipationService.java
@@ -95,12 +95,8 @@ public void approve(Long participationId, Member writer) {
         Member applicant = participation.getApplicant();
         Feed feed = participation.getFeed();
 
-        String message = applicant.getNickname() + "님의 참가가 승인되었습니다.";
-
-        commentService.createEventComment(
-                feed.getId(),
+        commentService.updateEventComment(
                 participation.getId(),
-                message,
                 CommentType.APPROVE
         );
 
@@ -125,12 +121,8 @@ public void reject(Long participationId, Member writer) {
         Member applicant = participation.getApplicant();
         Feed feed = participation.getFeed();
 
-        String message = applicant.getNickname() + "님의 참가가 거절되었습니다.";
-
-        commentService.createEventComment(
-                feed.getId(),
+        commentService.updateEventComment(
                 participation.getId(),
-                message,
                 CommentType.REJECT
         );