Comment Threads: Various fixes

src/api/gramjs/methods/messages.ts

@@ -732,6 +732,7 @@ export async function requestThreadInfoUpdate({
       '@type': 'updateChat',
       id: newChat.id,
       chat: newChat,
+      noTopChatsRequest: true,
     });
   });
 }

src/api/types/updates.ts

@@ -61,6 +61,7 @@ export type ApiUpdateChat = {
   id: number;
   chat: Partial<ApiChat>;
   newProfilePhoto?: ApiPhoto;
+  noTopChatsRequest?: boolean;
 };
 
 export type ApiUpdateChatJoin = {

src/components/middle/MessageList.tsx

@@ -149,8 +149,7 @@ const MessageList: FC<OwnProps & StateProps & DispatchProps> = ({
   const anchorIdRef = useRef<string>();
   const anchorTopRef = useRef<number>();
   const listItemElementsRef = useRef<HTMLDivElement[]>();
-  // Updated when opening chat (to preserve divider even after messages are read)
-  const memoUnreadDividerBeforeIdRef = useRef<number | undefined>(firstUnreadId);
+  const memoUnreadDividerBeforeIdRef = useRef<number | undefined>();
   // Updated every time (to be used from intersection callback closure)
   const memoFirstUnreadIdRef = useRef<number>();
   const memoFocusingIdRef = useRef<number>();
@@ -172,6 +171,11 @@ const MessageList: FC<OwnProps & StateProps & DispatchProps> = ({
 
   useOnChange(() => {
     memoFirstUnreadIdRef.current = firstUnreadId;
+
+    // Updated only once (to preserve divider even after messages are read)
+    if (!memoUnreadDividerBeforeIdRef.current) {
+      memoUnreadDividerBeforeIdRef.current = firstUnreadId;
+    }
   }, [firstUnreadId]);
 
   const {

src/components/middle/MiddleColumn.tsx

@@ -330,7 +330,11 @@ export default memo(withGlobal(
       canPost: !isPinnedMessageList && (!chat || canPost) && (!isBotNotStarted || IS_MOBILE_SCREEN),
       isPinnedMessageList,
       messageSendingRestrictionReason: chat && getMessageSendingRestrictionReason(chat),
-      hasPinnedOrAudioMessage: Boolean(pinnedIds && pinnedIds.length) || Boolean(audioChatId && audioMessageId),
+      hasPinnedOrAudioMessage: (
+        threadId !== MAIN_THREAD_ID
+        || Boolean(pinnedIds && pinnedIds.length)
+        || Boolean(audioChatId && audioMessageId)
+      ),
       customBackground,
       patternColor,
       isCustomBackgroundColor,

src/modules/actions/api/messages.ts

@@ -50,11 +50,13 @@ import {
   selectScheduledMessage,
   selectNoWebPage,
 } from '../../selectors';
-import { rafPromise } from '../../../util/schedulers';
+import { rafPromise, throttle } from '../../../util/schedulers';
 import { copyTextToClipboard } from '../../../util/clipboard';
 
 const uploadProgressCallbacks = new Map<number, ApiOnProgress>();
 
+const runThrottledForMarkRead = throttle((cb) => cb(), 1000, true);
+
 addReducer('loadViewportMessages', (global, actions, payload) => {
   const {
     direction = LoadMoreDirection.Around,
@@ -409,7 +411,9 @@ addReducer('markMessageListRead', (global, actions, payload) => {
 
   const { maxId } = payload!;
 
-  void callApi('markMessageListRead', { chat, threadId, maxId });
+  runThrottledForMarkRead(() => {
+    void callApi('markMessageListRead', { chat, threadId, maxId });
+  });
 });
 
 addReducer('markMessagesRead', (global, actions, payload) => {

src/modules/actions/apiUpdaters/chats.ts

@@ -1,6 +1,6 @@
 import { addReducer, getGlobal, setGlobal } from '../../../lib/teact/teactn';
 
-import { ApiUpdate } from '../../../api/types';
+import { ApiUpdate, MAIN_THREAD_ID } from '../../../api/types';
 
 import { ARCHIVED_FOLDER_ID, MAX_ACTIVE_PINNED_CHATS } from '../../../config';
 import { pick } from '../../../util/iteratees';
@@ -27,7 +27,7 @@ const CURRENT_CHAT_UNREAD_DELAY = 1000;
 addReducer('apiUpdate', (global, actions, update: ApiUpdate) => {
   switch (update['@type']) {
     case 'updateChat': {
-      if (!selectIsChatListed(global, update.id)) {
+      if (!update.noTopChatsRequest && !selectIsChatListed(global, update.id)) {
         // Chat can appear in dialogs list.
         actions.loadTopChats();
       }
@@ -95,7 +95,7 @@ addReducer('apiUpdate', (global, actions, update: ApiUpdate) => {
 
     case 'newMessage': {
       const { message } = update;
-      const { chatId: currentChatId } = selectCurrentMessageList(global) || {};
+      const { chatId: currentChatId, threadId, type: messageListType } = selectCurrentMessageList(global) || {};
 
       if (message.senderId === global.currentUserId && !message.isFromScheduled) {
         return;
@@ -106,7 +106,11 @@ addReducer('apiUpdate', (global, actions, update: ApiUpdate) => {
         return;
       }
 
-      const isActiveChat = update.chatId === currentChatId;
+      const isActiveChat = (
+        messageListType === 'thread'
+        && threadId === MAIN_THREAD_ID
+        && update.chatId === currentChatId
+      );
 
       if (isActiveChat) {
         setTimeout(() => {

src/modules/selectors/messages.ts

@@ -494,9 +494,7 @@ export function selectRealLastReadId(global: GlobalState, chatId: number, thread
     }
 
     // Some previously read messages may be deleted
-    return threadInfo.lastMessageId
-      ? Math.min(threadInfo.lastReadInboxMessageId, threadInfo.lastMessageId)
-      : threadInfo.lastReadInboxMessageId;
+    return Math.min(threadInfo.lastReadInboxMessageId, threadInfo.lastMessageId || Infinity);
   }
 }