From a960f3e473f96f14716d18b93acc4d29c4746774 Mon Sep 17 00:00:00 2001
From: Alexander Zinchuk <alx.zinchuk@gmail.com>
Date: Fri, 6 Sep 2024 15:42:50 +0200
Subject: [PATCH] [Perf] Message: Use deep equal check after requesting views
 updates

---
 src/global/actions/api/messages.ts |  2 +-
 src/global/reducers/messages.ts    | 11 ++++++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/global/actions/api/messages.ts b/src/global/actions/api/messages.ts
index 813423728..71d2f804f 100644
--- a/src/global/actions/api/messages.ts
+++ b/src/global/actions/api/messages.ts
@@ -2077,7 +2077,7 @@ addActionHandler('loadMessageViews', async (global, actions, payload): Promise<v
     global = updateChatMessage(global, chatId, update.id, {
       viewsCount: update.views,
       forwardsCount: update.forwards,
-    });
+    }, true);
 
     if (update.threadInfo) {
       global = updateThreadInfo(global, chatId, update.id, update.threadInfo);
diff --git a/src/global/reducers/messages.ts b/src/global/reducers/messages.ts
index 8b8748677..82119c756 100644
--- a/src/global/reducers/messages.ts
+++ b/src/global/reducers/messages.ts
@@ -10,6 +10,7 @@ import { MAIN_THREAD_ID } from '../../api/types';
 import {
   IS_MOCKED_CLIENT, IS_TEST, MESSAGE_LIST_SLICE, MESSAGE_LIST_VIEWPORT_LIMIT, TMP_CHAT_ID,
 } from '../../config';
+import { areDeepEqual } from '../../util/areDeepEqual';
 import { getCurrentTabId } from '../../util/establishMultitabRole';
 import {
   areSortedArraysEqual, excludeSortedArray, omit, pick, pickTruthy, unique,
@@ -200,10 +201,18 @@ export function addChatMessagesById<T extends GlobalState>(
 }
 
 export function updateChatMessage<T extends GlobalState>(
-  global: T, chatId: string, messageId: number, messageUpdate: Partial<ApiMessage>,
+  global: T, chatId: string, messageId: number, messageUpdate: Partial<ApiMessage>, withDeepCheck = false,
 ): T {
   const byId = selectChatMessages(global, chatId) || {};
   const message = byId[messageId];
+
+  if (withDeepCheck && message) {
+    const updateKeys = Object.keys(messageUpdate) as (keyof ApiMessage)[];
+    if (areDeepEqual(pick(message, updateKeys), messageUpdate)) {
+      return global;
+    }
+  }
+
   if (message && messageUpdate.isMediaUnread === false && hasMessageTtl(message)) {
     if (message.content.voice) {
       messageUpdate.content = {