✨ 좋아요 및 좋아요 취소 API

src/app/mocks/consts/error.ts

@@ -1,4 +1,5 @@
 export const errorMessage = Object.freeze({
+  '0000': 'Unknown error',
   '4003': 'Malformed request body',
   '4040': 'Requested resource not found',
   '4220': 'Unprocessable Content',

src/app/mocks/handler/like.ts

@@ -41,13 +41,16 @@ export const likeHandlers = [
       return createHttpErrorResponse('4040');
     }
 
-    if (!likeInfo.isLiked) {
-      likeInfo.isLiked = true;
-      likeInfo.totalCount += 1;
-      feeds[formattedFeedId].isLiked = true;
-      feeds[formattedFeedId].likeCount += 1;
+    // 이미 좋아요 누른 경우
+    if (likeInfo.isLiked) {
+      return createHttpErrorResponse('0000');
     }
 
+    likeInfo.isLiked = true;
+    likeInfo.totalCount += 1;
+    feeds[formattedFeedId].isLiked = true;
+    feeds[formattedFeedId].likeCount += 1;
+
     return createHttpSuccessResponse({ isLiked: true });
   }),
 
@@ -66,13 +69,16 @@ export const likeHandlers = [
       return createHttpErrorResponse('4040');
     }
 
-    if (likeInfo.isLiked) {
-      likeInfo.isLiked = false;
-      likeInfo.totalCount -= 1;
-      feeds[formattedFeedId].isLiked = false;
-      feeds[formattedFeedId].likeCount -= 1;
+    // 이미 좋아요 취소를 누른 경우
+    if (!likeInfo.isLiked) {
+      return createHttpErrorResponse('0000');
     }
 
+    likeInfo.isLiked = false;
+    likeInfo.totalCount -= 1;
+    feeds[formattedFeedId].isLiked = false;
+    feeds[formattedFeedId].likeCount -= 1;
+
     return createHttpSuccessResponse({ isLiked: false });
   }),
 ];