From c357d4a9ff1cf0b8297628ac7c2954039f8a8683 Mon Sep 17 00:00:00 2001
From: eekrwl <wani9909@naver.com>
Date: Thu, 3 Oct 2024 11:37:58 +0900
Subject: [PATCH] =?UTF-8?q?KKUMI-118=20[FEATURE]=20#73=20=EC=A2=8B?=
 =?UTF-8?q?=EC=95=84=EC=9A=94=20=EC=B7=A8=EC=86=8C=20=EA=B8=B0=EB=8A=A5?=
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---
 .../mykkumiserver/like/LikesController.java   | 11 ++++++++--
 .../mykkumiserver/like/LikesService.java      | 20 +++++++++++++++++++
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/swmarastro/mykkumiserver/like/LikesController.java b/src/main/java/com/swmarastro/mykkumiserver/like/LikesController.java
index 90d386d..b7dd76b 100644
--- a/src/main/java/com/swmarastro/mykkumiserver/like/LikesController.java
+++ b/src/main/java/com/swmarastro/mykkumiserver/like/LikesController.java
@@ -13,16 +13,23 @@
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
-@RequestMapping("/api/v1")
+@RequestMapping("/api/v1/likes")
 @RequiredArgsConstructor
 public class LikesController {
 
     private final LikesService likeService;
 
     @RequiresLogin
-    @PostMapping("/likes")
+    @PostMapping("/like")
     public ResponseEntity<LikesResponse> like(@Login User user, @RequestBody LikesRequest request) {
         LikesResponse response = LikesResponse.of(likeService.like(user, request.getPostId()));
         return ResponseEntity.ok(response);
     }
+
+    @RequiresLogin
+    @PostMapping("/unlike")
+    public ResponseEntity<LikesResponse> unlike(@Login User user, @RequestBody LikesRequest request) {
+        LikesResponse response = LikesResponse.of(likeService.unlike(user, request.getPostId()));
+        return ResponseEntity.ok(response);
+    }
 }
diff --git a/src/main/java/com/swmarastro/mykkumiserver/like/LikesService.java b/src/main/java/com/swmarastro/mykkumiserver/like/LikesService.java
index 95ed1bc..ebe9df9 100644
--- a/src/main/java/com/swmarastro/mykkumiserver/like/LikesService.java
+++ b/src/main/java/com/swmarastro/mykkumiserver/like/LikesService.java
@@ -39,4 +39,24 @@ public Boolean like(User user, Long postId) {
         //있는데 이미 눌린상태 -> 이미 좋아요 누른 포스트입니다.
         throw new CommonException(ErrorCode.ALREADY_EXISTS, "이미 좋아요를 누른 포스트입니다.", "이미 좋아요를 누른 포스트입니다.");
     }
+
+    public Boolean unlike(User user, Long postId) {
+        Post post = postService.findById(postId);
+
+        //like가 테이블에 있는지 확인
+        Optional<Likes> optionalLike = likeRepository.findByPostAndUser(post, user);
+
+        //없음 -> 좋아요를 취소할 수 없습니다.
+        if(optionalLike.isEmpty()) {
+            //TODO 이게 not_found가 맞는지 뭘쓸지 모르겠다
+            throw new CommonException(ErrorCode.NOT_FOUND, "좋아요를 취소할 수 없습니다.", "좋아요를 취소할 수 없습니다.");
+        }
+
+        //있음 -> 좋아요 취소
+        Likes likes = optionalLike.get();
+        return likes.unlike();
+
+        //TODO 좋아요가 이미 취소된 상태 -> 그냥 success 보내고 가만히 있으면 되지않나
+    }
+
 }