From 9fbb3b11efb0dfca1255058965c5526902b115cc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bar=C4=B1=C5=9F=20Soner=20U=C5=9Fakl=C4=B1?=
 <barisusakli@gmail.com>
Date: Mon, 1 Nov 2021 18:22:39 -0400
Subject: [PATCH] perf: only load posts once

---
 public/src/client/topic.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/public/src/client/topic.js b/public/src/client/topic.js
index 8127967292..4f32f70777 100644
--- a/public/src/client/topic.js
+++ b/public/src/client/topic.js
@@ -179,12 +179,14 @@ define('forum/topic', [
 			return;
 		}
 		let timeoutId = 0;
+		const postCache = {};
 		$('[component="topic"]').on('mouseenter', '[component="post"] a, [component="topic/event"] a', async function () {
 			const link = $(this);
 
 			async function renderPost(pid) {
-				const postData = await socket.emit('posts.getPostSummaryByPid', { pid: pid });
+				const postData = postCache[pid] || await socket.emit('posts.getPostSummaryByPid', { pid: pid });
 				if (postData) {
+					postCache[pid] = postData;
 					const tooltip = await app.parseAndTranslate('partials/topic/post-preview', { post: postData });
 					tooltip.hide().find('.timeago').timeago();
 					tooltip.appendTo($('body')).fadeIn(300);