From cd30c41a19179f5ae4784b9b3afe43507dca597f Mon Sep 17 00:00:00 2001
From: seorinn <seorin@ajou.ac.kr>
Date: Wed, 13 May 2026 16:22:19 +0900
Subject: [PATCH] =?UTF-8?q?fix:=20[TA-197]=20EventDetail=20BottomBar=20Opt?=
 =?UTF-8?q?imistic=20Update=20=EC=97=90=EB=9F=AC=20=EC=8B=9C=20=EC=83=81?=
 =?UTF-8?q?=ED=83=9C=20=EB=A1=A4=EB=B0=B1=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
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---
 src/pages/EventDetail/BottomBar/index.tsx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/pages/EventDetail/BottomBar/index.tsx b/src/pages/EventDetail/BottomBar/index.tsx
index 4645705..d3e8c32 100644
--- a/src/pages/EventDetail/BottomBar/index.tsx
+++ b/src/pages/EventDetail/BottomBar/index.tsx
@@ -23,6 +23,8 @@ export default function BottomBar({ id, url, saveCount, isSaved }: Props) {
   };
 
   const toggleSavePromotion = async () => {
+    const prevCount = count;
+    const prevIsSaved = isSavedPromotion;
     setCount(isSavedPromotion ? count - 1 : count + 1);
     setIsSavedPromotion(!isSavedPromotion);
     try {
@@ -30,6 +32,8 @@ export default function BottomBar({ id, url, saveCount, isSaved }: Props) {
         ? await deleteSavedPromotion(id)
         : await createSavedPromotion(id);
     } catch (e) {
+      setCount(prevCount);
+      setIsSavedPromotion(prevIsSaved);
       setShowLoginModal(true);
       console.log(e);
     }