Profile: Support multiple usernames (#2202)

src/api/gramjs/apiBuilders/chats.ts

@@ -20,6 +20,7 @@ import {
 import { omitVirtualClassFields } from './helpers';
 import { getServerTime } from '../../../util/serverTime';
 import { buildApiReaction } from './messages';
+import { buildApiUsernames } from './common';
 
 type PeerEntityApiChatFields = Omit<ApiChat, (
   'id' | 'type' | 'title' |
@@ -42,15 +43,16 @@ function buildApiChatFieldsFromPeerEntity(
   const isFake = Boolean('fake' in peerEntity && peerEntity.fake);
   const isJoinToSend = Boolean('joinToSend' in peerEntity && peerEntity.joinToSend);
   const isJoinRequest = Boolean('joinRequest' in peerEntity && peerEntity.joinRequest);
+  const usernames = buildApiUsernames(peerEntity);
 
   return {
     isMin,
     hasPrivateLink,
     isSignaturesShown,
+    usernames,
     ...(accessHash && { accessHash }),
     hasVideoAvatar,
     ...(avatarHash && { avatarHash }),
-    ...('username' in peerEntity && { username: peerEntity.username }),
     ...('verified' in peerEntity && { isVerified: peerEntity.verified }),
     ...('callActive' in peerEntity && { isCallActive: peerEntity.callActive }),
     ...('callNotEmpty' in peerEntity && { isCallNotEmpty: peerEntity.callNotEmpty }),

src/api/gramjs/apiBuilders/common.ts

@@ -2,7 +2,7 @@ import { Api as GramJs } from '../../../lib/gramjs';
 import { strippedPhotoToJpg } from '../../../lib/gramjs/Utils';
 
 import type {
-  ApiPhoto, ApiPhotoSize, ApiThumbnail, ApiVideoSize,
+  ApiPhoto, ApiPhotoSize, ApiThumbnail, ApiVideoSize, ApiUsername,
 } from '../../types';
 import { bytesToDataUri } from './helpers';
 import { pathBytesToSvg } from './pathBytesToSvg';
@@ -100,3 +100,31 @@ export function buildApiPhotoSize(photoSize: GramJs.PhotoSize): ApiPhotoSize {
     type: type as ('m' | 'x' | 'y'),
   };
 }
+
+export function buildApiUsernames(mtpPeer: GramJs.User | GramJs.Channel | GramJs.UpdateUserName) {
+  if (!mtpPeer.usernames && !('username' in mtpPeer && mtpPeer.username)) {
+    return undefined;
+  }
+
+  const usernames: ApiUsername[] = [];
+
+  if ('username' in mtpPeer && mtpPeer.username) {
+    usernames.push({
+      username: mtpPeer.username,
+      isActive: true,
+      isEditable: true,
+    });
+  }
+
+  if (mtpPeer.usernames) {
+    mtpPeer.usernames.forEach(({ username, active, editable }) => {
+      usernames.push({
+        username,
+        ...(active && { isActive: true }),
+        ...(editable && { isEditable: true }),
+      });
+    });
+  }
+
+  return usernames;
+}

src/api/gramjs/apiBuilders/users.ts

@@ -2,11 +2,13 @@ import { Api as GramJs } from '../../../lib/gramjs';
 import type {
   ApiEmojiStatus,
   ApiPremiumGiftOption,
-  ApiUser, ApiUserStatus, ApiUserType,
+  ApiUser,
+  ApiUserStatus,
+  ApiUserType,
 } from '../../types';
 import { buildApiPeerId } from './peers';
 import { buildApiBotInfo } from './bots';
-import { buildApiPhoto } from './common';
+import { buildApiPhoto, buildApiUsernames } from './common';
 
 export function buildApiUserFromFull(mtpUserFull: GramJs.users.UserFull): ApiUser {
   const {
@@ -50,6 +52,8 @@ export function buildApiUser(mtpUser: GramJs.TypeUser): ApiUser | undefined {
     : undefined;
   const userType = buildApiUserType(mtpUser);
 
+  const usernames = buildApiUsernames(mtpUser);
+
   return {
     id: buildApiPeerId(id, 'user'),
     isMin: Boolean(mtpUser.min),
@@ -62,7 +66,7 @@ export function buildApiUser(mtpUser: GramJs.TypeUser): ApiUser | undefined {
     ...(firstName && { firstName }),
     ...(userType === 'userTypeBot' && { canBeInvitedToGroup: !mtpUser.botNochats }),
     ...(lastName && { lastName }),
-    username: mtpUser.username || '',
+    ...(usernames && { usernames }),
     phoneNumber: mtpUser.phone || '',
     noStatus: !mtpUser.status,
     ...(mtpUser.accessHash && { accessHash: String(mtpUser.accessHash) }),

src/api/gramjs/methods/bots.ts

@@ -100,7 +100,7 @@ export async function fetchInlineBotResults({
   return {
     isGallery: Boolean(result.gallery),
     help: bot.botPlaceholder,
-    nextOffset: getInlineBotResultsNextOffset(bot.username, result.nextOffset),
+    nextOffset: getInlineBotResultsNextOffset(bot.usernames![0].username, result.nextOffset),
     switchPm: buildBotSwitchPm(result.switchPm),
     users: result.users.map(buildApiUser).filter(Boolean),
     results: processInlineBotResult(String(result.queryId), result.results),

src/api/gramjs/methods/index.ts

@@ -60,7 +60,7 @@ export {
   fetchNotificationExceptions, fetchNotificationSettings, updateContactSignUpNotification, updateNotificationSettings,
   fetchLanguages, fetchLangPack, fetchPrivacySettings, setPrivacySettings, registerDevice, unregisterDevice,
   updateIsOnline, fetchContentSettings, updateContentSettings, fetchLangStrings, fetchCountryList, fetchAppConfig,
-  fetchGlobalPrivacySettings, updateGlobalPrivacySettings,
+  fetchGlobalPrivacySettings, updateGlobalPrivacySettings, toggleUsername, reorderUsernames,
 } from './settings';
 
 export {

src/api/gramjs/methods/management.ts

@@ -5,6 +5,8 @@ import { buildInputEntity, buildInputPeer } from '../gramjsBuilders';
 import type {
   ApiChat, ApiError, ApiUser, OnApiUpdate,
 } from '../../types';
+
+import { USERNAME_PURCHASE_ERROR } from '../../../config';
 import { addEntitiesWithPhotosToLocalDb } from '../helpers';
 import { buildApiExportedInvite, buildChatInviteImporter } from '../apiBuilders/chats';
 import { buildApiUser } from '../apiBuilders/users';
@@ -12,20 +14,32 @@ import { buildCollectionByKey } from '../../../util/iteratees';
 
 let onUpdate: OnApiUpdate;
 
+export const ACCEPTABLE_USERNAME_ERRORS = new Set([USERNAME_PURCHASE_ERROR, 'USERNAME_INVALID']);
+
 export function init(_onUpdate: OnApiUpdate) {
   onUpdate = _onUpdate;
 }
 
-export function checkChatUsername({ username }: { username: string }) {
-  return invokeRequest(new GramJs.channels.CheckUsername({
-    channel: new GramJs.InputChannelEmpty(),
-    username,
-  }), undefined, true).catch((error) => {
-    if ((error as ApiError).message === 'USERNAME_INVALID') {
-      return false;
+export async function checkChatUsername({ username }: { username: string }) {
+  try {
+    const result = await invokeRequest(new GramJs.channels.CheckUsername({
+      channel: new GramJs.InputChannelEmpty(),
+      username,
+    }), undefined, true);
+
+    return { result, error: undefined };
+  } catch (error) {
+    const errorMessage = (error as ApiError).message;
+
+    if (ACCEPTABLE_USERNAME_ERRORS.has(errorMessage)) {
+      return {
+        result: false,
+        error: errorMessage,
+      };
     }
+
     throw error;
-  });
+  }
 }
 
 export async function setChatUsername(
@@ -36,11 +50,13 @@ export async function setChatUsername(
     username,
   }));
 
+  const usernames = chat.usernames!.map((u) => (u.isEditable ? { ...u, username } : u));
+
   if (result) {
     onUpdate({
       '@type': 'updateChat',
       id: chat.id,
-      chat: { username },
+      chat: { usernames },
     });
   }
 }

src/api/gramjs/methods/messages.ts

@@ -1358,7 +1358,7 @@ export async function fetchSponsoredMessages({ chat }: { chat: ApiChat }) {
     channel: buildInputPeer(chat.id, chat.accessHash),
   }));
 
-  if (!result || !result.messages.length) {
+  if (!result || result instanceof GramJs.messages.SponsoredMessagesEmpty || !result.messages.length) {
     return undefined;
   }
 

src/api/gramjs/methods/settings.ts

@@ -12,6 +12,7 @@ import type { ApiPrivacyKey, InputPrivacyRules, LangCode } from '../../../types'
 
 import type { LANG_PACKS } from '../../../config';
 import { BLOCKED_LIST_LIMIT, DEFAULT_LANG_PACK } from '../../../config';
+import { ACCEPTABLE_USERNAME_ERRORS } from './management';
 import {
   buildApiCountryList,
   buildApiNotifyException,
@@ -55,13 +56,25 @@ export function updateProfile({
   }), true);
 }
 
-export function checkUsername(username: string) {
-  return invokeRequest(new GramJs.account.CheckUsername({ username }), undefined, true).catch((error) => {
-    if ((error as ApiError).message === 'USERNAME_INVALID') {
-      return false;
+export async function checkUsername(username: string) {
+  try {
+    const result = await invokeRequest(new GramJs.account.CheckUsername({
+      username,
+    }), undefined, true);
+
+    return { result, error: undefined };
+  } catch (error) {
+    const errorMessage = (error as ApiError).message;
+
+    if (ACCEPTABLE_USERNAME_ERRORS.has(errorMessage)) {
+      return {
+        result: false,
+        error: errorMessage,
+      };
     }
+
     throw error;
-  });
+  }
 }
 
 export function updateUsername(username: string) {
@@ -544,3 +557,42 @@ export async function updateGlobalPrivacySettings({ shouldArchiveAndMuteNewNonCo
     shouldArchiveAndMuteNewNonContact: Boolean(result.archiveAndMuteNewNoncontactPeers),
   };
 }
+
+export function toggleUsername({
+  chatId, accessHash, username, isActive,
+}: {
+  username: string;
+  isActive: boolean;
+  chatId?: string;
+  accessHash?: string;
+}) {
+  if (chatId) {
+    return invokeRequest(new GramJs.channels.ToggleUsername({
+      channel: buildInputEntity(chatId, accessHash) as GramJs.InputChannel,
+      username,
+      active: isActive,
+    }));
+  }
+
+  return invokeRequest(new GramJs.account.ToggleUsername({
+    username,
+    active: isActive,
+  }));
+}
+
+export function reorderUsernames({ chatId, accessHash, usernames }: {
+  usernames: string[];
+  chatId?: string;
+  accessHash?: string;
+}) {
+  if (chatId) {
+    return invokeRequest(new GramJs.channels.ReorderUsernames({
+      channel: buildInputEntity(chatId, accessHash) as GramJs.InputChannel,
+      order: usernames,
+    }));
+  }
+
+  return invokeRequest(new GramJs.account.ReorderUsernames({
+    order: usernames,
+  }));
+}

src/api/gramjs/updater.ts

@@ -27,7 +27,11 @@ import {
   buildApiChatFolder,
   buildApiChatSettings,
 } from './apiBuilders/chats';
-import { buildApiUser, buildApiUserEmojiStatus, buildApiUserStatus } from './apiBuilders/users';
+import {
+  buildApiUser,
+  buildApiUserEmojiStatus,
+  buildApiUserStatus,
+} from './apiBuilders/users';
 import {
   buildMessageFromUpdate,
   isMessageWithMedia,
@@ -46,7 +50,7 @@ import {
   swapLocalInvoiceMedia,
 } from './helpers';
 import { buildApiNotifyException, buildPrivacyKey, buildPrivacyRules } from './apiBuilders/misc';
-import { buildApiPhoto } from './apiBuilders/common';
+import { buildApiPhoto, buildApiUsernames } from './apiBuilders/common';
 import {
   buildApiGroupCall,
   buildApiGroupCallParticipant,
@@ -779,14 +783,20 @@ export function updater(update: Update, originRequest?: GramJs.AnyRequest) {
   } else if (update instanceof GramJs.UpdateUserName) {
     const apiUserId = buildApiPeerId(update.userId, 'user');
     const updatedUser = localDb.users[apiUserId];
+
     const user = updatedUser?.mutualContact && !updatedUser.self
-      ? pick(update, ['username'])
-      : pick(update, ['firstName', 'lastName', 'username']);
+      ? pick(update, [])
+      : pick(update, ['firstName', 'lastName']);
+
+    const usernames = buildApiUsernames(update);
 
     onUpdate({
       '@type': 'updateUser',
       id: apiUserId,
-      user,
+      user: {
+        ...user,
+        usernames,
+      },
     });
   } else if (update instanceof GramJs.UpdateUserPhoto) {
     const { userId, photo } = update;

src/api/types/chats.ts

@@ -1,7 +1,7 @@
 import type { ApiMessage, ApiPhoto, ApiStickerSet } from './messages';
 import type { ApiBotCommand } from './bots';
 import type { ApiChatInviteImporter } from './misc';
-import type { ApiFakeType } from './users';
+import type { ApiFakeType, ApiUsername } from './users';
 
 type ApiChatType = (
   'chatTypePrivate' | 'chatTypeSecret' |
@@ -29,7 +29,7 @@ export interface ApiChat {
   isMin?: boolean;
   hasVideoAvatar?: boolean;
   avatarHash?: string;
-  username?: string;
+  usernames?: ApiUsername[];
   membersCount?: number;
   joinDate?: number;
   isSupport?: boolean;

src/api/types/users.ts

@@ -13,7 +13,7 @@ export interface ApiUser {
   firstName?: string;
   lastName?: string;
   noStatus?: boolean;
-  username: string;
+  usernames?: ApiUsername[];
   phoneNumber: string;
   accessHash?: string;
   hasVideoAvatar?: boolean;
@@ -58,6 +58,12 @@ export interface ApiUserStatus {
   expires?: number;
 }
 
+export interface ApiUsername {
+  username: string;
+  isActive?: true;
+  isEditable?: true;
+}
+
 export type ApiChatType = typeof API_CHAT_TYPES[number];
 export type ApiAttachMenuPeerType = 'self' | ApiChatType;
 

src/components/common/ChatExtra.tsx

@@ -1,12 +1,15 @@
 import type { FC } from '../../lib/teact/teact';
 import React, {
-  memo, useCallback, useEffect, useState,
+  memo, useCallback, useEffect, useMemo, useState,
 } from '../../lib/teact/teact';
 import { getActions, withGlobal } from '../../global';
 
 import type { GlobalState } from '../../global/types';
-import type { ApiChat, ApiCountryCode, ApiUser } from '../../api/types';
+import type {
+  ApiChat, ApiCountryCode, ApiUser, ApiUsername,
+} from '../../api/types';
 
+import { TME_LINK_PREFIX } from '../../config';
 import {
   selectChat, selectNotifyExceptions, selectNotifySettings, selectUser,
 } from '../../global/selectors';
@@ -17,6 +20,7 @@ import renderText from './helpers/renderText';
 import { copyTextToClipboard } from '../../util/clipboard';
 import { formatPhoneNumberWithCode } from '../../util/phoneNumber';
 import { debounce } from '../../util/schedulers';
+import stopEvent from '../../util/stopEvent';
 import useLang from '../../hooks/useLang';
 
 import ListItem from '../ui/ListItem';
@@ -57,11 +61,11 @@ const ChatExtra: FC<OwnProps & StateProps> = ({
   const {
     id: userId,
     fullInfo,
-    username,
+    usernames,
     phoneNumber,
     isSelf,
   } = user || {};
-  const { id: chatId } = chat || {};
+  const { id: chatId, usernames: chatUsernames } = chat || {};
   const lang = useLang();
 
   const [areNotificationsEnabled, setAreNotificationsEnabled] = useState(!isMuted);
@@ -70,6 +74,17 @@ const ChatExtra: FC<OwnProps & StateProps> = ({
       loadFullUser({ userId });
     }
   }, [loadFullUser, userId, lastSyncTime]);
+  const activeUsernames = useMemo(() => {
+    const result = usernames?.filter((u) => u.isActive);
+
+    return result?.length ? result : undefined;
+  }, [usernames]);
+  const activeChatUsernames = useMemo(() => {
+    const result = chatUsernames?.filter((u) => u.isActive);
+
+    return result?.length ? result : undefined;
+  }, [chatUsernames]);
+  const link = useMemo(() => (chat ? getChatLink(chat) : undefined), [chat]);
 
   const handleNotificationChange = useCallback(() => {
     setAreNotificationsEnabled((current) => {
@@ -93,9 +108,55 @@ const ChatExtra: FC<OwnProps & StateProps> = ({
   }
 
   const formattedNumber = phoneNumber && formatPhoneNumberWithCode(phoneCodeList, phoneNumber);
-  const link = getChatLink(chat);
   const description = (fullInfo?.bio) || getChatDescription(chat);
 
+  function renderUsernames(usernameList: ApiUsername[], isChat?: boolean) {
+    const [mainUsername, ...otherUsernames] = usernameList;
+    const usernameLinks = otherUsernames.length
+      ? (lang('UsernameAlso', '%USERNAMES%') as string)
+        .split('%')
+        .map((s) => {
+          return (s === 'USERNAMES' ? (
+            <>
+              {otherUsernames.map(({ username: nick }, idx) => (
+                <>
+                  {idx > 0 ? ', ' : ''}
+                  <a
+                    key={nick}
+                    href={`${TME_LINK_PREFIX}${nick}`}
+                    onClick={(e) => {
+                      stopEvent(e);
+                      copy(`@${nick}`, lang(isChat ? 'Link' : 'Username'));
+                    }}
+                    className="username-link"
+                  >
+                    {`@${nick}`}
+                  </a>
+                </>
+              ))}
+            </>
+          ) : s);
+        })
+      : undefined;
+
+    return (
+      <ListItem
+        icon="mention"
+        multiline
+        narrow
+        ripple
+        // eslint-disable-next-line react/jsx-no-bind
+        onClick={() => copy(`@${mainUsername.username}`, lang(isChat ? 'Link' : 'Username'))}
+      >
+        <span className="title" dir="auto">{renderText(mainUsername.username)}</span>
+        <span className="subtitle">
+          {usernameLinks && <span className="other-usernames">{usernameLinks}</span>}
+          {lang(isChat ? 'Link' : 'Username')}
+        </span>
+      </ListItem>
+    );
+  }
+
   return (
     <div className="ChatExtra">
       {formattedNumber && Boolean(formattedNumber.length) && (
@@ -105,19 +166,7 @@ const ChatExtra: FC<OwnProps & StateProps> = ({
           <span className="subtitle">{lang('Phone')}</span>
         </ListItem>
       )}
-      {username && (
-        <ListItem
-          icon="mention"
-          multiline
-          narrow
-          ripple
-          // eslint-disable-next-line react/jsx-no-bind
-          onClick={() => copy(`@${username}`, lang('Username'))}
-        >
-          <span className="title" dir="auto">{renderText(username)}</span>
-          <span className="subtitle">{lang('Username')}</span>
-        </ListItem>
-      )}
+      {activeUsernames && renderUsernames(activeUsernames)}
       {description && Boolean(description.length) && (
         <ListItem
           icon="info"
@@ -131,9 +180,10 @@ const ChatExtra: FC<OwnProps & StateProps> = ({
           <span className="subtitle">{lang(userId ? 'UserBio' : 'Info')}</span>
         </ListItem>
       )}
-      {(canInviteUsers || !username) && link && (
+      {activeChatUsernames && renderUsernames(activeChatUsernames, true)}
+      {!activeChatUsernames && canInviteUsers && link && (
         <ListItem
-          icon={chat.username ? 'mention' : 'link'}
+          icon="link"
           multiline
           narrow
           ripple

src/components/common/GroupChatInfo.tsx

@@ -1,6 +1,8 @@
 import type { MouseEvent as ReactMouseEvent } from 'react';
 import type { FC } from '../../lib/teact/teact';
-import React, { useEffect, useCallback, memo } from '../../lib/teact/teact';
+import React, {
+  useEffect, useCallback, memo, useMemo,
+} from '../../lib/teact/teact';
 import { getActions, withGlobal } from '../../global';
 
 import type { ApiChat, ApiTypingStatus } from '../../api/types';
@@ -10,6 +12,7 @@ import { MediaViewerOrigin } from '../../types';
 
 import {
   getChatTypeString,
+  getMainUsername,
   isChatSuperGroup,
 } from '../../global/helpers';
 import { selectChat, selectChatMessages, selectChatOnlineCount } from '../../global/selectors';
@@ -91,6 +94,7 @@ const GroupChatInfo: FC<OwnProps & StateProps> = ({
   }, [chat, avatarSize, openMediaViewer]);
 
   const lang = useLang();
+  const mainUsername = useMemo(() => chat && withUsername && getMainUsername(chat), [chat, withUsername]);
 
   if (!chat) {
     return undefined;
@@ -125,13 +129,12 @@ const GroupChatInfo: FC<OwnProps & StateProps> = ({
       );
     }
 
-    const handle = withUsername ? chat.username : undefined;
     const groupStatus = getGroupStatus(lang, chat);
     const onlineStatus = onlineCount ? `, ${lang('OnlineCount', onlineCount, 'i')}` : undefined;
 
     return (
       <span className="status">
-        {handle && <span className="handle">{handle}</span>}
+        {mainUsername && <span className="handle">{mainUsername}</span>}
         <span className="group-status">{groupStatus}</span>
         {onlineStatus && <span className="online-status">{onlineStatus}</span>}
       </span>

src/components/common/ManageUsernames.module.scss

@@ -0,0 +1,41 @@
+.container {
+  background-color: var(--color-background);
+  padding: 1.5rem 1.5rem 0;
+  box-shadow: inset 0 -0.0625rem 0 0 var(--color-background-secondary-accent);
+  margin-bottom: 0.625rem;
+}
+
+.header {
+  font-size: 1rem;
+  color: var(--color-text-secondary);
+  margin-bottom: 2rem;
+  position: relative;
+
+  &[dir="rtl"] {
+    text-align: right;
+  }
+}
+
+.description {
+  font-size: 0.875rem;
+  color: var(--color-text-secondary);
+
+  margin-top: 1rem;
+  margin-bottom: 0;
+  padding-top: 0.5rem;
+  padding-bottom: 1.5rem;
+}
+
+.sortableContainer {
+  position: relative;
+
+  :global(.draggable-knob) {
+    margin-top: -0.25rem;
+  }
+}
+
+.item {
+  margin-bottom: 0;
+  margin-left: -1rem;
+  margin-right: -1rem;
+}

src/components/common/ManageUsernames.tsx

@@ -0,0 +1,213 @@
+import React, {
+  memo, useCallback, useEffect, useMemo, useState,
+} from '../../lib/teact/teact';
+import { getActions } from '../../global';
+
+import type { FC } from '../../lib/teact/teact';
+import type { ApiUsername } from '../../api/types';
+
+import { copyTextToClipboard } from '../../util/clipboard';
+import buildClassName from '../../util/buildClassName';
+import { isBetween } from '../../util/math';
+import usePrevious from '../../hooks/usePrevious';
+import useLang from '../../hooks/useLang';
+
+import Draggable from '../ui/Draggable';
+import ListItem from '../ui/ListItem';
+import ConfirmDialog from '../ui/ConfirmDialog';
+
+import styles from './ManageUsernames.module.scss';
+
+type SortState = {
+  orderedUsernames?: string[];
+  dragOrderUsernames?: string[];
+  draggedIndex?: number;
+};
+
+type OwnProps = {
+  chatId?: string;
+  usernames: ApiUsername[];
+  onEditUsername: (username: string) => void;
+};
+
+const USERNAME_HEIGHT_PX = 60;
+
+const ManageUsernames: FC<OwnProps> = ({
+  chatId,
+  usernames,
+  onEditUsername,
+}) => {
+  const {
+    showNotification,
+    toggleUsername,
+    toggleChatUsername,
+    sortUsernames,
+    sortChatUsernames,
+  } = getActions();
+  const lang = useLang();
+  const [usernameForConfirm, setUsernameForConfirm] = useState<ApiUsername | undefined>();
+
+  const usernameList = useMemo(() => usernames.map(({ username }) => username), [usernames]);
+  const prevUsernameList = usePrevious(usernameList);
+
+  const [state, setState] = useState<SortState>({
+    orderedUsernames: usernameList,
+    dragOrderUsernames: usernameList,
+    draggedIndex: undefined,
+  });
+
+  // Sync folders state after changing folders in other clients
+  useEffect(() => {
+    if (prevUsernameList !== usernameList) {
+      setState({
+        orderedUsernames: usernameList,
+        dragOrderUsernames: usernameList,
+        draggedIndex: undefined,
+      });
+    }
+  }, [prevUsernameList, usernameList]);
+
+  const handleCopyUsername = useCallback((value: string) => {
+    copyTextToClipboard(`@${value}`);
+    showNotification({
+      message: lang('UsernameCopied'),
+    });
+  }, [lang, showNotification]);
+
+  const handleUsernameClick = useCallback((data: ApiUsername) => {
+    if (data.isEditable) {
+      onEditUsername(data.username);
+    } else {
+      setUsernameForConfirm(data);
+    }
+  }, [onEditUsername]);
+
+  const closeConfirmUsernameDialog = useCallback(() => {
+    setUsernameForConfirm(undefined);
+  }, []);
+
+  const handleUsernameToggle = useCallback(() => {
+    if (chatId) {
+      toggleChatUsername({
+        chatId,
+        username: usernameForConfirm!.username,
+        isActive: !usernameForConfirm!.isActive,
+      });
+    } else {
+      toggleUsername({
+        username: usernameForConfirm!.username,
+        isActive: !usernameForConfirm!.isActive,
+      });
+    }
+    closeConfirmUsernameDialog();
+  }, [chatId, closeConfirmUsernameDialog, toggleChatUsername, toggleUsername, usernameForConfirm]);
+
+  const handleDrag = useCallback((translation: { x: number; y: number }, id: string | number) => {
+    const delta = Math.round(translation.y / USERNAME_HEIGHT_PX);
+    const index = state.orderedUsernames?.indexOf(id as string) || 0;
+    const dragOrderUsernames = state.orderedUsernames?.filter((username) => username !== id);
+
+    if (!dragOrderUsernames || !isBetween(index + delta, 0, usernameList.length)) {
+      return;
+    }
+
+    dragOrderUsernames.splice(index + delta, 0, id as string);
+    setState((current) => ({
+      ...current,
+      draggedIndex: index,
+      dragOrderUsernames,
+    }));
+  }, [state.orderedUsernames, usernameList.length]);
+
+  const handleDragEnd = useCallback(() => {
+    setState((current) => {
+      if (chatId) {
+        sortChatUsernames({
+          chatId,
+          usernames: current.dragOrderUsernames!,
+        });
+      } else {
+        sortUsernames({ usernames: current.dragOrderUsernames! });
+      }
+
+      return {
+        ...current,
+        orderedUsernames: current.dragOrderUsernames,
+        draggedIndex: undefined,
+      };
+    });
+  }, [chatId, sortChatUsernames, sortUsernames]);
+
+  return (
+    <>
+      <div className={styles.container}>
+        <h4 className={styles.header} dir={lang.isRtl ? 'rtl' : undefined}>
+          {lang('lng_usernames_subtitle')}
+        </h4>
+        <div className={styles.sortableContainer} style={`height: ${(usernames.length) * USERNAME_HEIGHT_PX}px`}>
+          {usernames.map((usernameData, i) => {
+            const isDragged = state.draggedIndex === i;
+            const draggedTop = (state.orderedUsernames?.indexOf(usernameData.username) ?? 0) * USERNAME_HEIGHT_PX;
+            const top = (state.dragOrderUsernames?.indexOf(usernameData.username) ?? 0) * USERNAME_HEIGHT_PX;
+            const subtitle = usernameData.isEditable
+              ? 'lng_usernames_edit'
+              : (usernameData.isActive ? 'lng_usernames_active' : 'lng_usernames_non_active');
+
+            return (
+              <Draggable
+                key={usernameData.username}
+                id={usernameData.username}
+                onDrag={handleDrag}
+                onDragEnd={handleDragEnd}
+                style={`top: ${isDragged ? draggedTop : top}px;`}
+                knobStyle={`${lang.isRtl ? 'left' : 'right'}: 3rem;`}
+                isDisabled={!usernameData.isActive}
+              >
+                <ListItem
+                  key={usernameData.username}
+                  className={buildClassName('mb-2 no-icon', styles.item)}
+                  narrow
+                  secondaryIcon="more"
+                  icon={usernameData.isActive ? 'link' : 'link-broken'}
+                  multiline
+                  contextActions={[
+                    {
+                      handler: () => {
+                        handleCopyUsername(usernameData.username);
+                      },
+                      title: lang('Copy'),
+                      icon: 'copy',
+                    },
+                  ]}
+                  // eslint-disable-next-line react/jsx-no-bind
+                  onClick={() => {
+                    handleUsernameClick(usernameData);
+                  }}
+                >
+                  <span className="title">@{usernameData.username}</span>
+                  <span className="subtitle">{lang(subtitle)}</span>
+                </ListItem>
+              </Draggable>
+            );
+          })}
+        </div>
+        <p className={styles.description} dir={lang.isRtl ? 'rtl' : undefined}>
+          {lang('lng_usernames_description')}
+        </p>
+      </div>
+      <ConfirmDialog
+        isOpen={Boolean(usernameForConfirm)}
+        onClose={closeConfirmUsernameDialog}
+        title={lang(usernameForConfirm?.isActive ? 'Username.DeactivateAlertTitle' : 'Username.ActivateAlertTitle')}
+        text={lang(usernameForConfirm?.isActive ? 'Username.DeactivateAlertText' : 'Username.ActivateAlertText')}
+        confirmLabel={lang(usernameForConfirm?.isActive
+          ? 'Username.DeactivateAlertHide'
+          : 'Username.ActivateAlertShow')}
+        confirmHandler={handleUsernameToggle}
+        confirmIsDestructive={!usernameForConfirm?.isActive}
+      />
+    </>
+  );
+};
+
+export default memo(ManageUsernames);

src/components/common/PrivateChatInfo.tsx

@@ -1,4 +1,6 @@
-import React, { useEffect, useCallback, memo } from '../../lib/teact/teact';
+import React, {
+  useEffect, useCallback, memo, useMemo,
+} from '../../lib/teact/teact';
 import { getActions, withGlobal } from '../../global';
 
 import type { FC } from '../../lib/teact/teact';
@@ -10,7 +12,7 @@ import type { AnimationLevel } from '../../types';
 import { MediaViewerOrigin } from '../../types';
 
 import { selectChatMessages, selectUser, selectUserStatus } from '../../global/selectors';
-import { getUserStatus, isUserOnline } from '../../global/helpers';
+import { getMainUsername, getUserStatus, isUserOnline } from '../../global/helpers';
 import buildClassName from '../../util/buildClassName';
 import renderText from './helpers/renderText';
 
@@ -99,6 +101,7 @@ const PrivateChatInfo: FC<OwnProps & StateProps> = ({
   }, [user, avatarSize, openMediaViewer]);
 
   const lang = useLang();
+  const mainUsername = useMemo(() => user && withUsername && getMainUsername(user), [user, withUsername]);
 
   if (!user) {
     return undefined;
@@ -129,7 +132,7 @@ const PrivateChatInfo: FC<OwnProps & StateProps> = ({
 
     return (
       <span className={buildClassName('status', isUserOnline(user, userStatus) && 'online')}>
-        {withUsername && user.username && <span className="handle">{user.username}</span>}
+        {mainUsername && <span className="handle">{mainUsername}</span>}
         <span className="user-status" dir="auto">{getUserStatus(lang, user, userStatus, serverTimeOffset)}</span>
       </span>
     );

src/components/common/UsernameInput.tsx

@@ -25,7 +25,7 @@ type OwnProps = {
 const MIN_USERNAME_LENGTH = 5;
 const MAX_USERNAME_LENGTH = 32;
 const LINK_PREFIX_REGEX = /https:\/\/t\.me\/?/i;
-const USERNAME_REGEX = /^[^\d]([a-zA-Z0-9_]+)$/;
+const USERNAME_REGEX = /^\D([a-zA-Z0-9_]+)$/;
 
 const runDebouncedForCheckUsername = debounce((cb) => cb(), 250, false);
 

src/components/left/settings/SettingsEditProfile.tsx

@@ -1,21 +1,22 @@
 import type { ChangeEvent } from 'react';
-import type { FC } from '../../../lib/teact/teact';
 import React, {
   useState, useCallback, memo, useEffect, useMemo,
 } from '../../../lib/teact/teact';
 import { getActions, withGlobal } from '../../../global';
 
+import type { FC } from '../../../lib/teact/teact';
+import type { ApiUsername } from '../../../api/types';
 import { ApiMediaFormat } from '../../../api/types';
 import { ProfileEditProgress } from '../../../types';
 
-import { TME_LINK_PREFIX } from '../../../config';
+import { PURCHASE_USERNAME, TME_LINK_PREFIX, USERNAME_PURCHASE_ERROR } from '../../../config';
 import { throttle } from '../../../util/schedulers';
 import { selectUser } from '../../../global/selectors';
 import { getChatAvatarHash } from '../../../global/helpers';
-import useMedia from '../../../hooks/useMedia';
-import useLang from '../../../hooks/useLang';
 import { selectCurrentLimit } from '../../../global/selectors/limits';
 import renderText from '../../common/helpers/renderText';
+import useMedia from '../../../hooks/useMedia';
+import useLang from '../../../hooks/useLang';
 import useHistoryBack from '../../../hooks/useHistoryBack';
 import usePrevious from '../../../hooks/usePrevious';
 
@@ -25,6 +26,8 @@ import Spinner from '../../ui/Spinner';
 import InputText from '../../ui/InputText';
 import UsernameInput from '../../common/UsernameInput';
 import TextArea from '../../ui/TextArea';
+import ManageUsernames from '../../common/ManageUsernames';
+import SafeLink from '../../common/SafeLink';
 
 type OwnProps = {
   isActive: boolean;
@@ -36,11 +39,12 @@ type StateProps = {
   currentFirstName?: string;
   currentLastName?: string;
   currentBio?: string;
-  currentUsername?: string;
   progress?: ProfileEditProgress;
   checkedUsername?: string;
+  editUsernameError?: string;
   isUsernameAvailable?: boolean;
   maxBioLength: number;
+  usernames?: ApiUsername[];
 };
 
 const runThrottled = throttle((cb) => cb(), 60000, true);
@@ -53,11 +57,12 @@ const SettingsEditProfile: FC<OwnProps & StateProps> = ({
   currentFirstName,
   currentLastName,
   currentBio,
-  currentUsername,
   progress,
   checkedUsername,
+  editUsernameError,
   isUsernameAvailable,
   maxBioLength,
+  usernames,
   onReset,
 }) => {
   const {
@@ -67,6 +72,8 @@ const SettingsEditProfile: FC<OwnProps & StateProps> = ({
 
   const lang = useLang();
 
+  const firstEditableUsername = useMemo(() => usernames?.find(({ isEditable }) => isEditable), [usernames]);
+  const currentUsername = firstEditableUsername?.username || '';
   const [isUsernameTouched, setIsUsernameTouched] = useState(false);
   const [isProfileFieldsTouched, setIsProfileFieldsTouched] = useState(false);
   const [error, setError] = useState<string | undefined>();
@@ -75,15 +82,16 @@ const SettingsEditProfile: FC<OwnProps & StateProps> = ({
   const [firstName, setFirstName] = useState(currentFirstName || '');
   const [lastName, setLastName] = useState(currentLastName || '');
   const [bio, setBio] = useState(currentBio || '');
-  const [username, setUsername] = useState<string | false>(currentUsername || '');
+  const [editableUsername, setEditableUsername] = useState<string | false>(currentUsername);
 
   const currentAvatarBlobUrl = useMedia(currentAvatarHash, false, ApiMediaFormat.BlobUrl);
 
   const isLoading = progress === ProfileEditProgress.InProgress;
-  const isUsernameError = username === false;
+  const isUsernameError = editableUsername === false;
 
   const previousIsUsernameAvailable = usePrevious(isUsernameAvailable);
   const renderingIsUsernameAvailable = isUsernameAvailable ?? previousIsUsernameAvailable;
+  const shouldRenderUsernamesManage = usernames && usernames.length > 1;
 
   const isSaveButtonShown = useMemo(() => {
     if (isUsernameError) {
@@ -117,7 +125,7 @@ const SettingsEditProfile: FC<OwnProps & StateProps> = ({
   }, [currentFirstName, currentLastName, currentBio]);
 
   useEffect(() => {
-    setUsername(currentUsername || '');
+    setEditableUsername(currentUsername || '');
   }, [currentUsername]);
 
   useEffect(() => {
@@ -148,7 +156,7 @@ const SettingsEditProfile: FC<OwnProps & StateProps> = ({
   }, []);
 
   const handleUsernameChange = useCallback((value: string | false) => {
-    setUsername(value);
+    setEditableUsername(value);
     setIsUsernameTouched(currentUsername !== value);
   }, [currentUsername]);
 
@@ -170,16 +178,31 @@ const SettingsEditProfile: FC<OwnProps & StateProps> = ({
         bio: trimmedBio,
       }),
       ...(isUsernameTouched && {
-        username,
+        username: editableUsername,
       }),
     });
   }, [
     photo,
     firstName, lastName, bio, isProfileFieldsTouched,
-    username, isUsernameTouched,
+    editableUsername, isUsernameTouched,
     updateProfile,
   ]);
 
+  function renderPurchaseLink() {
+    const purchaseInfoLink = `${TME_LINK_PREFIX}${PURCHASE_USERNAME}`;
+
+    return (
+      <p className="settings-item-description" dir={lang.isRtl ? 'rtl' : undefined}>
+        {(lang('lng_username_purchase_available') as string)
+          .replace('{link}', '%PURCHASE_LINK%')
+          .split('%')
+          .map((s) => {
+            return (s === 'PURCHASE_LINK' ? <SafeLink url={purchaseInfoLink} text={`@${PURCHASE_USERNAME}`} /> : s);
+          })}
+      </p>
+    );
+  }
+
   return (
     <div className="settings-fab-wrapper">
       <div className="settings-content no-border custom-scroll">
@@ -228,16 +251,24 @@ const SettingsEditProfile: FC<OwnProps & StateProps> = ({
             onChange={handleUsernameChange}
           />
 
+          {editUsernameError === USERNAME_PURCHASE_ERROR && renderPurchaseLink()}
           <p className="settings-item-description" dir={lang.isRtl ? 'rtl' : undefined}>
             {renderText(lang('UsernameHelp'), ['br', 'simple_markdown'])}
           </p>
-          {username && (
+          {editableUsername && (
             <p className="settings-item-description" dir={lang.isRtl ? 'rtl' : undefined}>
               {lang('lng_username_link')}<br />
-              <span className="username-link">{TME_LINK_PREFIX}{username}</span>
+              <span className="username-link">{TME_LINK_PREFIX}{editableUsername}</span>
             </p>
           )}
         </div>
+
+        {shouldRenderUsernamesManage && (
+          <ManageUsernames
+            usernames={usernames}
+            onEditUsername={setEditableUsername}
+          />
+        )}
       </div>
 
       <FloatingActionButton
@@ -259,7 +290,9 @@ const SettingsEditProfile: FC<OwnProps & StateProps> = ({
 export default memo(withGlobal<OwnProps>(
   (global): StateProps => {
     const { currentUserId } = global;
-    const { progress, isUsernameAvailable, checkedUsername } = global.profileEdit || {};
+    const {
+      progress, isUsernameAvailable, checkedUsername, error: editUsernameError,
+    } = global.profileEdit || {};
     const currentUser = currentUserId ? selectUser(global, currentUserId) : undefined;
 
     const maxBioLength = selectCurrentLimit(global, 'aboutLength');
@@ -269,6 +302,7 @@ export default memo(withGlobal<OwnProps>(
         progress,
         checkedUsername,
         isUsernameAvailable,
+        editUsernameError,
         maxBioLength,
       };
     }
@@ -276,7 +310,7 @@ export default memo(withGlobal<OwnProps>(
     const {
       firstName: currentFirstName,
       lastName: currentLastName,
-      username: currentUsername,
+      usernames,
       fullInfo,
     } = currentUser;
     const { bio: currentBio } = fullInfo || {};
@@ -287,11 +321,12 @@ export default memo(withGlobal<OwnProps>(
       currentFirstName,
       currentLastName,
       currentBio,
-      currentUsername,
       progress,
       isUsernameAvailable,
       checkedUsername,
+      editUsernameError,
       maxBioLength,
+      usernames,
     };
   },
 )(SettingsEditProfile));

src/components/left/settings/SettingsPrivacyBlockedUsers.tsx

@@ -1,14 +1,12 @@
 import type { FC } from '../../../lib/teact/teact';
-import React, { memo, useCallback } from '../../../lib/teact/teact';
+import React, { memo, useCallback, useMemo } from '../../../lib/teact/teact';
 import { getActions, withGlobal } from '../../../global';
 
 import type { ApiChat, ApiCountryCode, ApiUser } from '../../../api/types';
 
 import { CHAT_HEIGHT_PX } from '../../../config';
 import { formatPhoneNumberWithCode } from '../../../util/phoneNumber';
-import {
-  isUserId,
-} from '../../../global/helpers';
+import { getMainUsername, isUserId } from '../../../global/helpers';
 import buildClassName from '../../../util/buildClassName';
 import useLang from '../../../hooks/useLang';
 import useHistoryBack from '../../../hooks/useHistoryBack';
@@ -54,6 +52,20 @@ const SettingsPrivacyBlockedUsers: FC<OwnProps & StateProps> = ({
     onBack: onReset,
   });
 
+  const blockedUsernamesById = useMemo(() => {
+    return blockedIds.reduce((acc, contactId) => {
+      const isPrivate = isUserId(contactId);
+      const user = isPrivate ? usersByIds[contactId] : undefined;
+      const mainUsername = user && !user.phoneNumber && getMainUsername(user);
+
+      if (mainUsername) {
+        acc[contactId] = mainUsername;
+      }
+
+      return acc;
+    }, {} as Record<string, string>);
+  }, [blockedIds, usersByIds]);
+
   function renderContact(contactId: string, i: number, viewportOffset: number) {
     const isPrivate = isUserId(contactId);
     const user = isPrivate ? usersByIds[contactId] : undefined;
@@ -65,6 +77,8 @@ const SettingsPrivacyBlockedUsers: FC<OwnProps & StateProps> = ({
       isPrivate ? 'private' : 'group',
     );
 
+    const userMainUsername = blockedUsernamesById[contactId];
+
     return (
       <ListItem
         key={contactId}
@@ -86,9 +100,7 @@ const SettingsPrivacyBlockedUsers: FC<OwnProps & StateProps> = ({
           {user?.phoneNumber && (
             <div className="contact-phone" dir="auto">{formatPhoneNumberWithCode(phoneCodeList, user.phoneNumber)}</div>
           )}
-          {user && !user.phoneNumber && user.username && (
-            <div className="contact-username" dir="auto">@{user.username}</div>
-          )}
+          {userMainUsername && (<div className="contact-username" dir="auto">@{userMainUsername}</div>)}
         </div>
       </ListItem>
     );

src/components/left/settings/folders/SettingsFoldersMain.tsx

@@ -10,6 +10,7 @@ import { ALL_FOLDER_ID, STICKER_SIZE_FOLDER_SETTINGS } from '../../../../config'
 import { LOCAL_TGS_URLS } from '../../../common/helpers/animatedAssets';
 import { MEMO_EMPTY_ARRAY } from '../../../../util/memo';
 import { throttle } from '../../../../util/schedulers';
+import { isBetween } from '../../../../util/math';
 import { getFolderDescriptionText } from '../../../../global/helpers';
 import { selectCurrentLimit } from '../../../../global/selectors/limits';
 import { selectIsCurrentUserPremium } from '../../../../global/selectors';
@@ -154,16 +155,16 @@ const SettingsFoldersMain: FC<OwnProps & StateProps> = ({
     addChatFolder({ folder });
   }, [foldersById, maxFolders, addChatFolder, openLimitReachedModal]);
 
-  const handleDrag = useCallback((translation: { x: number; y: number }, id: number) => {
+  const handleDrag = useCallback((translation: { x: number; y: number }, id: string | number) => {
     const delta = Math.round(translation.y / FOLDER_HEIGHT_PX);
-    const index = state.orderedFolderIds?.indexOf(id) || 0;
+    const index = state.orderedFolderIds?.indexOf(id as number) || 0;
     const dragOrderIds = state.orderedFolderIds?.filter((folderId) => folderId !== id);
 
-    if (!dragOrderIds || !inRange(index + delta, 0, folderIds?.length || 0)) {
+    if (!dragOrderIds || !isBetween(index + delta, 0, folderIds?.length || 0)) {
       return;
     }
 
-    dragOrderIds.splice(index + delta + (isPremium ? 0 : 1), 0, id);
+    dragOrderIds.splice(index + delta + (isPremium ? 0 : 1), 0, id as number);
     setState((current) => ({
       ...current,
       draggedIndex: index,
@@ -362,7 +363,3 @@ export default memo(withGlobal<OwnProps>(
     };
   },
 )(SettingsFoldersMain));
-
-function inRange(x: number, min: number, max: number) {
-  return x >= min && x <= max;
-}

src/components/middle/composer/BotCommandTooltip.tsx

@@ -45,7 +45,7 @@ const BotCommandTooltip: FC<OwnProps & StateProps> = ({
   const handleSendCommand = useCallback(({ botId, command }: ApiBotCommand) => {
     const bot = usersById[botId];
     sendBotCommand({
-      command: `/${command}${withUsername && bot ? `@${bot.username}` : ''}`,
+      command: `/${command}${withUsername && bot ? `@${bot.usernames![0].username}` : ''}`,
       botId,
     });
     onClick();

src/components/middle/composer/hooks/useMentionTooltip.ts

@@ -6,7 +6,7 @@ import { getGlobal } from '../../../../global';
 import type { ApiChatMember, ApiUser } from '../../../../api/types';
 import { ApiMessageEntityTypes } from '../../../../api/types';
 
-import { filterUsersByName, getUserFirstOrLastName } from '../../../../global/helpers';
+import { filterUsersByName, getMainUsername, getUserFirstOrLastName } from '../../../../global/helpers';
 import { prepareForRegExp } from '../helpers/prepareForRegExp';
 import focusEditableElement from '../../../../util/focusEditableElement';
 import { pickTruthy, unique } from '../../../../util/iteratees';
@@ -106,12 +106,13 @@ export default function useMentionTooltip(
   }, [markIsOpen, unmarkIsOpen, usersToMention]);
 
   const insertMention = useCallback((user: ApiUser, forceFocus = false) => {
-    if (!user.username && !getUserFirstOrLastName(user)) {
+    if (!user.usernames && !getUserFirstOrLastName(user)) {
       return;
     }
 
-    const insertedHtml = user.username
-      ? `@${user.username}`
+    const mainUsername = getMainUsername(user);
+    const insertedHtml = mainUsername
+      ? `@${mainUsername}`
       : `<a
           class="text-entity-link"
           data-entity-type="${ApiMessageEntityTypes.MentionName}"

src/components/middle/message/Message.tsx

@@ -18,6 +18,7 @@ import type {
   ApiThreadInfo,
   ApiAvailableReaction,
   ApiChatMember,
+  ApiUsername,
 } from '../../../api/types';
 import type {
   AnimationLevel, FocusDirection, IAlbum, ISettings,
@@ -164,7 +165,7 @@ type OwnProps =
 type StateProps = {
   theme: ISettings['theme'];
   forceSenderName?: boolean;
-  chatUsername?: string;
+  chatUsernames?: ApiUsername[];
   sender?: ApiUser | ApiChat;
   canShowSender: boolean;
   originSender?: ApiUser | ApiChat;
@@ -238,7 +239,7 @@ const NO_MEDIA_CORNERS_THRESHOLD = 18;
 
 const Message: FC<OwnProps & StateProps> = ({
   message,
-  chatUsername,
+  chatUsernames,
   observeIntersectionForBottom,
   observeIntersectionForLoading,
   observeIntersectionForPlaying,
@@ -990,7 +991,7 @@ const Message: FC<OwnProps & StateProps> = ({
               className="interactive"
               onClick={handleViaBotClick}
             >
-              {renderText(`@${botSender.username}`)}
+              {renderText(`@${botSender.usernames![0].username}`)}
             </span>
           </>
         )}
@@ -1012,6 +1013,7 @@ const Message: FC<OwnProps & StateProps> = ({
   }
 
   const forwardAuthor = isGroup && asForwarded ? message.postAuthorTitle : undefined;
+  const chatUsername = useMemo(() => chatUsernames?.find((c) => c.isActive), [chatUsernames]);
 
   return (
     <div
@@ -1123,7 +1125,7 @@ const Message: FC<OwnProps & StateProps> = ({
           anchor={contextMenuPosition}
           message={message}
           album={album}
-          chatUsername={chatUsername}
+          chatUsername={chatUsername?.username}
           messageListType={messageListType}
           onClose={handleContextMenuClose}
           onCloseAnimationEnd={handleContextMenuHide}
@@ -1150,7 +1152,7 @@ export default memo(withGlobal<OwnProps>(
     const isRepliesChat = isChatWithRepliesBot(chatId);
     const isChannel = chat && isChatChannel(chat);
     const isGroup = chat && isChatGroup(chat);
-    const chatUsername = chat?.username;
+    const chatUsernames = chat?.usernames;
 
     const isForwarding = forwardMessages.messageIds && forwardMessages.messageIds.includes(id);
     const forceSenderName = !isChatWithSelf && isAnonymousOwnMessage(message);
@@ -1215,7 +1217,7 @@ export default memo(withGlobal<OwnProps>(
 
     return {
       theme: selectTheme(global),
-      chatUsername,
+      chatUsernames,
       forceSenderName,
       sender,
       canShowSender,

src/components/right/RightHeader.tsx

@@ -391,7 +391,7 @@ const RightHeader: FC<OwnProps & StateProps> = ({
       default:
         return (
           <>
-            <h3>Profile</h3>
+            <h3>{lang(isChannel ? 'Channel.TitleInfo' : (userId ? 'UserInfo.Title' : 'GroupInfo.Title'))}</h3>
             <section className="tools">
               {canAddContact && (
                 <Button

src/components/right/management/ManageChannel.tsx

@@ -1,7 +1,7 @@
 import type { ChangeEvent } from 'react';
 import type { FC } from '../../../lib/teact/teact';
 import React, {
-  memo, useCallback, useEffect, useState,
+  memo, useCallback, useEffect, useMemo, useState,
 } from '../../../lib/teact/teact';
 import { getActions, withGlobal } from '../../../global';
 
@@ -9,7 +9,7 @@ import { ManagementScreens, ManagementProgress } from '../../../types';
 import type { ApiChat, ApiExportedInvite } from '../../../api/types';
 import { ApiMediaFormat } from '../../../api/types';
 
-import { getChatAvatarHash, getHasAdminRight } from '../../../global/helpers';
+import { getChatAvatarHash, getHasAdminRight, isChatPublic } from '../../../global/helpers';
 import useMedia from '../../../hooks/useMedia';
 import useLang from '../../../hooks/useLang';
 import { selectChat } from '../../../global/selectors';
@@ -192,6 +192,7 @@ const ManageChannel: FC<OwnProps & StateProps> = ({
   }, [chat.isCreator, chat.id, closeDeleteDialog, closeManagement, leaveChannel, deleteChannel, openChat]);
 
   const enabledReactionsCount = chat.fullInfo?.enabledReactions?.length || 0;
+  const isChannelPublic = useMemo(() => isChatPublic(chat), [chat]);
 
   if (chat.isRestricted || chat.isForbidden) {
     return undefined;
@@ -229,7 +230,7 @@ const ManageChannel: FC<OwnProps & StateProps> = ({
           {chat.isCreator && (
             <ListItem icon="lock" multiline onClick={handleClickEditType}>
               <span className="title">{lang('ChannelType')}</span>
-              <span className="subtitle">{chat.username ? lang('TypePublic') : lang('TypePrivate')}</span>
+              <span className="subtitle">{isChannelPublic ? lang('TypePublic') : lang('TypePrivate')}</span>
             </ListItem>
           )}
           <ListItem

src/components/right/management/ManageChatPrivacyType.tsx

@@ -1,15 +1,16 @@
 import type { ChangeEvent } from 'react';
 import type { FC } from '../../../lib/teact/teact';
 import React, {
-  memo, useCallback, useEffect, useState,
+  memo, useCallback, useEffect, useMemo, useState,
 } from '../../../lib/teact/teact';
 import { getActions, getGlobal, withGlobal } from '../../../global';
 
 import type { ApiChat } from '../../../api/types';
 import { ManagementProgress } from '../../../types';
 
+import { PURCHASE_USERNAME, TME_LINK_PREFIX, USERNAME_PURCHASE_ERROR } from '../../../config';
 import { selectChat, selectManagement } from '../../../global/selectors';
-import { isChatChannel } from '../../../global/helpers';
+import { isChatChannel, isChatPublic } from '../../../global/helpers';
 import { selectCurrentLimit } from '../../../global/selectors/limits';
 
 import useFlag from '../../../hooks/useFlag';
@@ -25,6 +26,7 @@ import Spinner from '../../ui/Spinner';
 import FloatingActionButton from '../../ui/FloatingActionButton';
 import UsernameInput from '../../common/UsernameInput';
 import ConfirmDialog from '../../ui/ConfirmDialog';
+import ManageUsernames from '../../common/ManageUsernames';
 
 type PrivacyType = 'private' | 'public';
 
@@ -40,6 +42,7 @@ type StateProps = {
   progress?: ManagementProgress;
   isUsernameAvailable?: boolean;
   checkedUsername?: string;
+  error?: string;
   isProtected?: boolean;
   maxPublicLinks: number;
 };
@@ -51,6 +54,7 @@ const ManageChatPrivacyType: FC<OwnProps & StateProps> = ({
   progress,
   isUsernameAvailable,
   checkedUsername,
+  error,
   isProtected,
   maxPublicLinks,
   onClose,
@@ -62,18 +66,21 @@ const ManageChatPrivacyType: FC<OwnProps & StateProps> = ({
     openLimitReachedModal,
   } = getActions();
 
-  const isPublic = Boolean(chat.username);
+  const firstEditableUsername = useMemo(() => chat.usernames?.find(({ isEditable }) => isEditable), [chat.usernames]);
+  const currentUsername = firstEditableUsername?.username || '';
+  const isPublic = useMemo(() => isChatPublic(chat), [chat]);
   const privateLink = chat.fullInfo?.inviteLink;
 
   const [privacyType, setPrivacyType] = useState<PrivacyType>(isPublic ? 'public' : 'private');
-  const [username, setUsername] = useState();
+  const [editableUsername, setEditableUsername] = useState();
   const [isRevokeConfirmDialogOpen, openRevokeConfirmDialog, closeRevokeConfirmDialog] = useFlag();
+  const [isUsernameLostDialogOpen, openUsernameLostDialog, closeUsernameLostDialog] = useFlag();
 
   const previousIsUsernameAvailable = usePrevious(isUsernameAvailable);
   const renderingIsUsernameAvailable = isUsernameAvailable ?? previousIsUsernameAvailable;
 
   const canUpdate = Boolean(
-    (privacyType === 'public' && username && renderingIsUsernameAvailable)
+    (privacyType === 'public' && editableUsername && renderingIsUsernameAvailable)
     || (privacyType === 'private' && isPublic),
   );
 
@@ -89,7 +96,9 @@ const ManageChatPrivacyType: FC<OwnProps & StateProps> = ({
   }, [privacyType, privateLink, updatePrivateLink]);
 
   const handleOptionChange = useCallback((value: string, e: ChangeEvent<HTMLInputElement>) => {
-    const myChats = Object.values(getGlobal().chats.byId).filter((l) => l.isCreator && l.username);
+    const myChats = Object.values(getGlobal().chats.byId)
+      .filter((l) => l.isCreator && l.usernames?.some((c) => c.isActive));
+
     if (myChats.length >= maxPublicLinks && value === 'public') {
       openLimitReachedModal({ limit: 'channelsPublic' });
       const radioGroup = e.currentTarget.closest('.radio-group') as HTMLDivElement;
@@ -110,8 +119,17 @@ const ManageChatPrivacyType: FC<OwnProps & StateProps> = ({
   }, [chat.id, toggleIsProtected]);
 
   const handleSave = useCallback(() => {
-    updatePublicLink({ username: privacyType === 'public' ? username : '' });
-  }, [privacyType, updatePublicLink, username]);
+    if (isPublic && privacyType === 'private') {
+      openUsernameLostDialog();
+    } else {
+      updatePublicLink({ username: privacyType === 'public' ? editableUsername : '' });
+    }
+  }, [isPublic, openUsernameLostDialog, privacyType, updatePublicLink, editableUsername]);
+
+  const handleMakeChannelPrivateConfirm = useCallback(() => {
+    updatePublicLink({ username: '' });
+    closeUsernameLostDialog();
+  }, [closeUsernameLostDialog, updatePublicLink]);
 
   const handleRevokePrivateLink = useCallback(() => {
     closeRevokeConfirmDialog();
@@ -136,6 +154,22 @@ const ManageChatPrivacyType: FC<OwnProps & StateProps> = ({
   }];
 
   const isLoading = progress === ManagementProgress.InProgress;
+  const shouldRenderUsernamesManage = privacyType === 'public' && chat.usernames && chat.usernames.length > 1;
+
+  function renderPurchaseLink() {
+    const purchaseInfoLink = `${TME_LINK_PREFIX}${PURCHASE_USERNAME}`;
+
+    return (
+      <p className="section-info" dir="auto">
+        {(lang('lng_username_purchase_available') as string)
+          .replace('{link}', '%PURCHASE_LINK%')
+          .split('%')
+          .map((s) => {
+            return (s === 'PURCHASE_LINK' ? <SafeLink url={purchaseInfoLink} text={`@${PURCHASE_USERNAME}`} /> : s);
+          })}
+      </p>
+    );
+  }
 
   return (
     <div className="Management">
@@ -178,17 +212,25 @@ const ManageChatPrivacyType: FC<OwnProps & StateProps> = ({
           <div className="section no-border">
             <UsernameInput
               asLink
-              currentUsername={chat.username}
+              currentUsername={currentUsername}
               isLoading={isLoading}
               isUsernameAvailable={isUsernameAvailable}
               checkedUsername={checkedUsername}
-              onChange={setUsername}
+              onChange={setEditableUsername}
             />
+            {error === USERNAME_PURCHASE_ERROR && renderPurchaseLink()}
             <p className="section-info" dir="auto">
               {lang(`${langPrefix2}.Username.CreatePublicLinkHelp`)}
             </p>
           </div>
         )}
+        {shouldRenderUsernamesManage && (
+          <ManageUsernames
+            chatId={chat.id}
+            usernames={chat.usernames!}
+            onEditUsername={setEditableUsername}
+          />
+        )}
         <div className="section" dir={lang.isRtl ? 'rtl' : undefined}>
           <h3 className="section-heading">
             {lang(isChannel ? 'ChannelVisibility.Forwarding.ChannelTitle' : 'ChannelVisibility.Forwarding.GroupTitle')}
@@ -218,6 +260,13 @@ const ManageChatPrivacyType: FC<OwnProps & StateProps> = ({
           <i className="icon-check" />
         )}
       </FloatingActionButton>
+      <ConfirmDialog
+        isOpen={isUsernameLostDialogOpen}
+        onClose={closeUsernameLostDialog}
+        text={lang('ChannelVisibility.Confirm.MakePrivate.Channel', currentUsername)}
+        confirmHandler={handleMakeChannelPrivateConfirm}
+        confirmIsDestructive
+      />
     </div>
   );
 };
@@ -225,12 +274,13 @@ const ManageChatPrivacyType: FC<OwnProps & StateProps> = ({
 export default memo(withGlobal<OwnProps>(
   (global, { chatId }): StateProps => {
     const chat = selectChat(global, chatId)!;
-    const { isUsernameAvailable, checkedUsername } = selectManagement(global, chatId)!;
+    const { isUsernameAvailable, checkedUsername, error } = selectManagement(global, chatId)!;
 
     return {
       chat,
       isChannel: isChatChannel(chat),
       progress: global.management.progress,
+      error,
       isUsernameAvailable,
       checkedUsername,
       isProtected: chat?.isProtected,

src/components/right/management/ManageGroup.tsx

@@ -9,7 +9,12 @@ import { ManagementScreens, ManagementProgress } from '../../../types';
 import type { ApiChat, ApiChatBannedRights, ApiExportedInvite } from '../../../api/types';
 import { ApiMediaFormat } from '../../../api/types';
 
-import { getChatAvatarHash, getHasAdminRight, isChatBasicGroup } from '../../../global/helpers';
+import {
+  getChatAvatarHash,
+  getHasAdminRight,
+  isChatBasicGroup,
+  isChatPublic,
+} from '../../../global/helpers';
 import useMedia from '../../../hooks/useMedia';
 import useLang from '../../../hooks/useLang';
 import useFlag from '../../../hooks/useFlag';
@@ -97,7 +102,7 @@ const ManageGroup: FC<OwnProps & StateProps> = ({
   const [error, setError] = useState<string | undefined>();
   const imageHash = getChatAvatarHash(chat);
   const currentAvatarBlobUrl = useMedia(imageHash, false, ApiMediaFormat.BlobUrl);
-  const isPublicGroup = chat.username || hasLinkedChannel;
+  const isPublicGroup = useMemo(() => hasLinkedChannel || isChatPublic(chat), [chat, hasLinkedChannel]);
   const lang = useLang();
   // eslint-disable-next-line no-null/no-null
   const isPreHistoryHiddenCheckboxRef = useRef<HTMLDivElement>(null);
@@ -292,7 +297,7 @@ const ManageGroup: FC<OwnProps & StateProps> = ({
           {chat.isCreator && (
             <ListItem icon="lock" multiline onClick={handleClickEditType}>
               <span className="title">{lang('GroupType')}</span>
-              <span className="subtitle">{chat.username ? lang('TypePublic') : lang('TypePrivate')}</span>
+              <span className="subtitle">{isPublicGroup ? lang('TypePublic') : lang('TypePrivate')}</span>
             </ListItem>
           )}
           {hasLinkedChannel && (

src/components/right/management/ManageInvites.tsx

@@ -19,7 +19,7 @@ import { copyTextToClipboard } from '../../../util/clipboard';
 import { IS_SINGLE_COLUMN_LAYOUT } from '../../../util/environment';
 import { getServerTime } from '../../../util/serverTime';
 import useFlag from '../../../hooks/useFlag';
-import { isChatChannel } from '../../../global/helpers';
+import { getMainUsername, isChatChannel } from '../../../global/helpers';
 
 import ListItem from '../../ui/ListItem';
 import NothingFound from '../../common/NothingFound';
@@ -99,12 +99,13 @@ const ManageInvites: FC<OwnProps & StateProps> = ({
     forceUpdate();
   }, hasDetailedCountdown ? 1000 : undefined);
 
+  const chatMainUsername = useMemo(() => chat && getMainUsername(chat), [chat]);
   const primaryInvite = exportedInvites?.find(({ isPermanent }) => isPermanent);
-  const primaryInviteLink = chat?.username ? `${TME_LINK_PREFIX}${chat.username}` : primaryInvite?.link;
+  const primaryInviteLink = chatMainUsername ? `${TME_LINK_PREFIX}${chatMainUsername}` : primaryInvite?.link;
   const temporalInvites = useMemo(() => {
-    const invites = chat?.username ? exportedInvites : exportedInvites?.filter(({ isPermanent }) => !isPermanent);
+    const invites = chat?.usernames ? exportedInvites : exportedInvites?.filter(({ isPermanent }) => !isPermanent);
     return invites?.sort(inviteComparator);
-  }, [chat?.username, exportedInvites]);
+  }, [chat?.usernames, exportedInvites]);
 
   const editInvite = (invite: ApiExportedInvite) => {
     setEditingExportedInvite({ chatId, invite });
@@ -307,7 +308,7 @@ const ManageInvites: FC<OwnProps & StateProps> = ({
         {primaryInviteLink && (
           <div className="section">
             <p className="text-muted">
-              {chat?.username ? lang('PublicLink') : lang('lng_create_permanent_link_title')}
+              {chat?.usernames ? lang('PublicLink') : lang('lng_create_permanent_link_title')}
             </p>
             <div className="primary-link">
               <input
@@ -322,7 +323,7 @@ const ManageInvites: FC<OwnProps & StateProps> = ({
                 positionX="right"
               >
                 <MenuItem icon="copy" onClick={handleCopyPrimaryClicked}>{lang('Copy')}</MenuItem>
-                {!chat?.username && (
+                {!chat?.usernames && (
                   <MenuItem icon="delete" onClick={handlePrimaryRevoke} destructive>{lang('RevokeButton')}</MenuItem>
                 )}
               </DropdownMenu>

src/components/right/statistics/StatisticsPublicForward.tsx

@@ -1,10 +1,13 @@
-import type { FC } from '../../../lib/teact/teact';
-import React, { memo, useCallback } from '../../../lib/teact/teact';
+import React, { memo, useCallback, useMemo } from '../../../lib/teact/teact';
 
-import useLang from '../../../hooks/useLang';
-import { getActions } from '../../../global';
+import type { FC } from '../../../lib/teact/teact';
 import type { ApiMessagePublicForward } from '../../../api/types';
 
+import { getActions } from '../../../global';
+
+import { getMainUsername } from '../../../global/helpers';
+import useLang from '../../../hooks/useLang';
+
 import Avatar from '../../common/Avatar';
 
 import './StatisticsPublicForward.scss';
@@ -17,9 +20,10 @@ const StatisticsPublicForward: FC<OwnProps> = ({ data }) => {
   const lang = useLang();
   const { openChatByUsername } = getActions();
 
+  const username = useMemo(() => getMainUsername(data.chat), [data.chat]);
   const handleClick = useCallback(() => {
-    openChatByUsername({ username: data.chat.username, messageId: data.messageId });
-  }, [data, openChatByUsername]);
+    openChatByUsername({ username, messageId: data.messageId });
+  }, [data.messageId, openChatByUsername, username]);
 
   return (
     <div className="StatisticsPublicForward" onClick={handleClick}>

src/components/ui/Draggable.tsx

@@ -25,9 +25,9 @@ type DraggableState = {
 
 type OwnProps = {
   children: React.ReactNode;
-  onDrag: (translation: TPoint, id: number) => void;
+  onDrag: (translation: TPoint, id: number | string) => void;
   onDragEnd: NoneToVoidFunction;
-  id: number;
+  id: number | string;
   style?: string;
   knobStyle?: string;
   isDisabled?: boolean;
@@ -143,12 +143,12 @@ const Draggable: FC<OwnProps> = ({
 
   const cssStyles = useMemo(() => {
     return buildStyle(
-      `transform: translate(${state.translation.x}px, ${state.translation.y}px)`,
+      state.isDragging && `transform: translate(${state.translation.x}px, ${state.translation.y}px)`,
       state.width ? `width: ${state.width}px` : undefined,
       state.height ? `height: ${state.height}px` : undefined,
       externalStyle,
     );
-  }, [externalStyle, state.height, state.translation.x, state.translation.y, state.width]);
+  }, [externalStyle, state.height, state.isDragging, state.translation.x, state.translation.y, state.width]);
 
   return (
     <div style={cssStyles} className={fullClassName} ref={ref}>

src/components/ui/ListItem.scss

@@ -49,11 +49,21 @@
   .user-status,
   .group-status,
   .title,
+  .other-usernames,
   .subtitle {
     text-align: initial;
     unicode-bidi: plaintext;
   }
 
+  .other-usernames {
+    display: block;
+  }
+
+  .username-link {
+    position: relative;
+    z-index: 2;
+  }
+
   &.multiline {
     .ListItem-button > i {
       position: relative;

src/config.ts

@@ -44,7 +44,7 @@ export const CUSTOM_EMOJI_PREVIEW_CACHE_DISABLED = false;
 export const CUSTOM_EMOJI_PREVIEW_CACHE_NAME = 'tt-custom-emoji-preview';
 export const MEDIA_CACHE_MAX_BYTES = 512 * 1024; // 512 KB
 export const CUSTOM_BG_CACHE_NAME = 'tt-custom-bg';
-export const LANG_CACHE_NAME = 'tt-lang-packs-v14';
+export const LANG_CACHE_NAME = 'tt-lang-packs-v15';
 export const ASSET_CACHE_NAME = 'tt-assets';
 export const AUTODOWNLOAD_FILESIZE_MB_LIMITS = [1, 5, 10, 50, 100, 500];
 
@@ -206,6 +206,8 @@ export const RE_TG_LINK = /^tg:(\/\/)?/;
 export const RE_TME_LINK = /^(https?:\/\/)?([-a-zA-Z0-9@:%_+~#=]{1,32}\.)?t\.me/;
 export const RE_TELEGRAM_LINK = /^(https?:\/\/)?telegram\.org\//;
 export const TME_LINK_PREFIX = 'https://t.me/';
+export const USERNAME_PURCHASE_ERROR = 'USERNAME_PURCHASE_AVAILABLE';
+export const PURCHASE_USERNAME = 'auction';
 
 // eslint-disable-next-line max-len
 export const COUNTRIES_WITH_12H_TIME_FORMAT = new Set(['AU', 'BD', 'CA', 'CO', 'EG', 'HN', 'IE', 'IN', 'JO', 'MX', 'MY', 'NI', 'NZ', 'PH', 'PK', 'SA', 'SV', 'US']);

src/global/actions/api/bots.ts

@@ -288,7 +288,7 @@ addActionHandler('switchBotInline', (global, actions, payload) => {
   }
 
   actions.openChatWithDraft({
-    text: `@${botSender.username} ${query}`,
+    text: `@${botSender.usernames![0].username} ${query}`,
     chatId: isSamePeer ? chat.id : undefined,
   });
   return undefined;

src/global/actions/api/chats.ts

@@ -57,7 +57,6 @@ const SERVICE_NOTIFICATIONS_USER_MOCK: ApiUser = {
   accessHash: '0',
   type: 'userTypeRegular',
   isMin: true,
-  username: '',
   phoneNumber: '',
 };
 
@@ -724,7 +723,7 @@ addActionHandler('openChatByUsername', async (global, actions, payload) => {
   const chat = selectCurrentChat(global);
 
   if (!commentId) {
-    if (chat && chat.username === username && !startAttach && !startParam) {
+    if (!startAttach && !startParam && chat?.usernames?.some((c) => c.username === username)) {
       actions.focusMessage({ chatId: chat.id, messageId });
       return;
     }
@@ -1683,7 +1682,7 @@ async function openChatByUsername(
     return;
   }
 
-  const isCurrentChat = currentChat?.username === username;
+  const isCurrentChat = currentChat?.usernames?.some((c) => c.username === username);
 
   if (!isCurrentChat) {
     // Open temporary empty chat to make the click response feel faster

src/global/actions/api/management.ts

@@ -26,16 +26,20 @@ addActionHandler('checkPublicLink', async (global, actions, payload) => {
   global = updateManagement(global, chatId, { isUsernameAvailable: undefined, checkedUsername: undefined });
   setGlobal(global);
 
-  const isUsernameAvailable = (await callApi('checkChatUsername', { username }))!;
+  const { result, error } = (await callApi('checkChatUsername', { username }))!;
 
   global = getGlobal();
   global = updateManagementProgress(
-    global, isUsernameAvailable ? ManagementProgress.Complete : ManagementProgress.Error,
+    global, result === true ? ManagementProgress.Complete : ManagementProgress.Error,
   );
-  global = updateManagement(global, chatId, { isUsernameAvailable, checkedUsername: username });
+  global = updateManagement(global, chatId, {
+    isUsernameAvailable: result === true,
+    checkedUsername: username,
+    error,
+  });
   setGlobal(global);
 
-  if (isUsernameAvailable === undefined) {
+  if (result === undefined) {
     actions.openLimitReachedModal({ limit: 'channelsPublic' });
   }
 });
@@ -66,7 +70,11 @@ addActionHandler('updatePublicLink', async (global, actions, payload) => {
 
   global = getGlobal();
   global = updateManagementProgress(global, result ? ManagementProgress.Complete : ManagementProgress.Error);
-  global = updateManagement(global, chatId, { isUsernameAvailable: undefined, checkedUsername: undefined });
+  global = updateManagement(global, chatId, {
+    isUsernameAvailable: undefined,
+    checkedUsername: undefined,
+    error: undefined,
+  });
   setGlobal(global);
 });
 

src/global/actions/api/settings.ts

@@ -4,6 +4,7 @@ import type { GlobalState } from '../../types';
 import type {
   ApiPrivacyKey, PrivacyVisibility, InputPrivacyRules, InputPrivacyContact,
 } from '../../../types';
+import type { ApiUsername } from '../../../api/types';
 import {
   ProfileEditProgress,
   UPLOADING_WALLPAPER_SLUG,
@@ -14,10 +15,10 @@ import { callApi } from '../../../api/gramjs';
 import { buildCollectionByKey } from '../../../util/iteratees';
 import { subscribe, unsubscribe } from '../../../util/notifications';
 import { setTimeFormat } from '../../../util/langProvider';
-import { selectUser, selectChat } from '../../selectors';
+import { selectChat, selectUser } from '../../selectors';
 import {
   addUsers, addBlockedContact, updateChats, updateUser, removeBlockedContact, replaceSettings, updateNotifySettings,
-  addNotifyExceptions,
+  addNotifyExceptions, updateChat,
 } from '../../reducers';
 import { isUserId } from '../../helpers';
 
@@ -70,8 +71,15 @@ addActionHandler('updateProfile', async (global, actions, payload) => {
 
   if (username) {
     const result = await callApi('updateUsername', username);
-    if (result && currentUserId) {
-      setGlobal(updateUser(getGlobal(), currentUserId, { username }));
+    global = getGlobal();
+    const currentUser = currentUserId && selectUser(global, currentUserId);
+
+    if (result && currentUser) {
+      const shouldUsernameUpdate = currentUser.usernames?.find((u) => u.isEditable);
+      const usernames = shouldUsernameUpdate
+        ? currentUser.usernames?.map((u) => (u.isEditable ? { ...u, username } : u))
+        : [{ username, isEditable: true, isActive: true } as ApiUsername, ...currentUser.usernames || []];
+      setGlobal(updateUser(global, currentUserId, { usernames }));
     }
   }
 
@@ -145,10 +153,11 @@ addActionHandler('checkUsername', async (global, actions, payload) => {
       progress: global.profileEdit ? global.profileEdit.progress : ProfileEditProgress.Idle,
       checkedUsername: undefined,
       isUsernameAvailable: undefined,
+      error: undefined,
     },
   });
 
-  const isUsernameAvailable = await callApi('checkUsername', username);
+  const { result, error } = (await callApi('checkUsername', username))!;
 
   global = getGlobal();
   setGlobal({
@@ -156,7 +165,8 @@ addActionHandler('checkUsername', async (global, actions, payload) => {
     profileEdit: {
       ...global.profileEdit!,
       checkedUsername: username,
-      isUsernameAvailable,
+      isUsernameAvailable: result === true,
+      error,
     },
   });
 });
@@ -640,3 +650,104 @@ addActionHandler('updateGlobalPrivacySettings', async (global, actions, payload)
       : result.shouldArchiveAndMuteNewNonContact,
   }));
 });
+
+addActionHandler('toggleUsername', async (global, actions, { username, isActive }) => {
+  const { currentUserId } = global;
+  if (!currentUserId) {
+    return;
+  }
+
+  const currentUser = selectUser(global, currentUserId);
+  if (!currentUser?.usernames) {
+    return;
+  }
+
+  const usernames = currentUser.usernames.map((item) => {
+    if (item.username !== username) {
+      return item;
+    }
+
+    return { ...item, isActive: isActive || undefined };
+  });
+
+  setGlobal(updateUser(global, currentUserId, { usernames }));
+
+  const result = await callApi('toggleUsername', { username, isActive });
+
+  if (!result) {
+    actions.loadFullUser({ userId: currentUserId });
+  }
+});
+
+addActionHandler('toggleChatUsername', async (global, actions, { chatId, username, isActive }) => {
+  const chat = selectChat(global, chatId);
+  if (!chat?.usernames) {
+    return;
+  }
+
+  const usernames = chat.usernames.map((item) => {
+    if (item.username !== username) {
+      return item;
+    }
+
+    return { ...item, isActive: isActive || undefined };
+  });
+
+  setGlobal(updateChat(global, chatId, { usernames }));
+
+  const result = await callApi('toggleUsername', {
+    chatId: chat.id,
+    accessHash: chat.accessHash,
+    username,
+    isActive,
+  });
+
+  if (!result) {
+    actions.loadFullChat({ chatId });
+  }
+});
+
+addActionHandler('sortUsernames', async (global, actions, { usernames }) => {
+  const { currentUserId } = global;
+  if (!currentUserId) {
+    return;
+  }
+
+  const result = await callApi('reorderUsernames', { usernames });
+
+  // After saving the order of usernames, server sends an update with the necessary data,
+  // so there is no need to update the state in this place
+  if (!result) {
+    actions.loadUser({ userId: currentUserId });
+  }
+});
+
+addActionHandler('sortChatUsernames', async (global, actions, { chatId, usernames }) => {
+  const chat = selectChat(global, chatId);
+  if (!chat) {
+    return;
+  }
+
+  const prevUsernames = [...chat.usernames!];
+  const sortedUsernames = chat.usernames!.reduce((res, currentUsername) => {
+    const idx = usernames.findIndex((username) => username === currentUsername.username);
+    res[idx] = currentUsername;
+
+    return res;
+  }, [] as ApiUsername[]);
+
+  global = updateChat(global, chatId, { usernames: sortedUsernames });
+  setGlobal(global);
+
+  const result = await callApi('reorderUsernames', {
+    chatId: chat.id,
+    accessHash: chat.accessHash,
+    usernames,
+  });
+
+  if (!result) {
+    global = getGlobal();
+    global = updateChat(global, chatId, { usernames: prevUsernames });
+    setGlobal(global);
+  }
+});

src/global/actions/ui/calls.ts

@@ -1,19 +1,22 @@
 import {
   addActionHandler, getActions, getGlobal, setGlobal,
 } from '../../index';
-import { selectActiveGroupCall, selectChatGroupCall, selectGroupCall } from '../../selectors/calls';
 import { callApi } from '../../../api/gramjs';
-import { selectChat, selectUser } from '../../selectors';
-import { copyTextToClipboard } from '../../../util/clipboard';
-import type { ApiGroupCall } from '../../../api/types';
-import { updateGroupCall } from '../../reducers/calls';
-import { buildCollectionByKey, omit } from '../../../util/iteratees';
-import { addChats, addUsers } from '../../reducers';
 import { fetchChatByUsername, loadFullChat } from '../api/chats';
+
+import type { ApiGroupCall } from '../../../api/types';
+import type { CallSound } from '../../types';
+
+import { addChats, addUsers } from '../../reducers';
+import { updateGroupCall } from '../../reducers/calls';
+import { selectActiveGroupCall, selectChatGroupCall, selectGroupCall } from '../../selectors/calls';
+import { selectChat, selectUser } from '../../selectors';
+import { getMainUsername } from '../../helpers';
+import { copyTextToClipboard } from '../../../util/clipboard';
+import { buildCollectionByKey, omit } from '../../../util/iteratees';
 import safePlay from '../../../util/safePlay';
 import { ARE_CALLS_SUPPORTED } from '../../../util/environment';
 import * as langProvider from '../../../util/langProvider';
-import type { CallSound } from '../../types';
 
 // Workaround for Safari not playing audio without user interaction
 let audioElement: HTMLAudioElement | undefined;
@@ -167,10 +170,10 @@ addActionHandler('createGroupCallInviteLink', async (global, actions) => {
     return;
   }
 
-  const canInvite = Boolean(chat.username);
+  const hasPublicUsername = Boolean(getMainUsername(chat));
 
   let { inviteLink } = chat.fullInfo!;
-  if (canInvite) {
+  if (hasPublicUsername) {
     inviteLink = await callApi('exportGroupCallInvite', {
       call: groupCall,
       canSelfUnmute: false,

src/global/cache.ts

@@ -3,6 +3,7 @@ import { addCallback, removeCallback } from '../lib/teact/teactn';
 import { addActionHandler, getGlobal } from './index';
 
 import type { GlobalState } from './types';
+import type { ApiChat, ApiUser } from '../api/types';
 import { MAIN_THREAD_ID } from '../api/types';
 
 import { onBeforeUnload, onIdle, throttle } from '../util/schedulers';
@@ -326,6 +327,30 @@ function unsafeMigrateCache(cached: GlobalState, initialState: GlobalState) {
       notification.isDeleted = isHidden;
     }
   });
+
+  // TODO Remove in Mar 2023 (this was re-designed but can be hardcoded in cache)
+  if (cached.users.byId && Object.values(cached.users.byId).some((u) => 'username' in u)) {
+    cached.users.byId = Object.entries(cached.users.byId).reduce((acc, [id, user]) => {
+      if ('username' in user) {
+        delete user.username;
+      }
+      acc[id] = user;
+
+      return acc;
+    }, {} as Record<string, ApiUser>);
+  }
+
+  // TODO Remove in Mar 2023 (this was re-designed but can be hardcoded in cache)
+  if (cached.chats.byId && Object.values(cached.chats.byId).some((c) => 'username' in c)) {
+    cached.chats.byId = Object.entries(cached.chats.byId).reduce((acc, [id, user]) => {
+      if ('username' in user) {
+        delete user.username;
+      }
+      acc[id] = user;
+
+      return acc;
+    }, {} as Record<string, ApiChat>);
+  }
 }
 
 function updateCache() {

src/global/helpers/chats.ts

@@ -94,9 +94,12 @@ export function getChatDescription(chat: ApiChat) {
 }
 
 export function getChatLink(chat: ApiChat) {
-  const { username } = chat;
-  if (username) {
-    return `${TME_LINK_PREFIX}${username}`;
+  const { usernames } = chat;
+  if (usernames) {
+    const activeUsername = usernames.find((u) => u.isActive);
+    if (activeUsername) {
+      return `${TME_LINK_PREFIX}${activeUsername.username}`;
+    }
   }
 
   const { inviteLink } = chat.fullInfo || {};
@@ -376,3 +379,7 @@ export function filterChatsByName(
     return searchWords(getChatTitle(lang, chat, undefined, id === currentUserId));
   });
 }
+
+export function isChatPublic(chat: ApiChat) {
+  return chat.usernames?.some(({ isActive }) => isActive);
+}

src/global/helpers/users.ts

@@ -248,7 +248,8 @@ export function filterUsersByName(
     }
 
     const name = id === currentUserId ? savedMessagesLang : getUserFullName(user);
-    return (name && searchWords(name)) || searchWords(user.username);
+
+    return (name && searchWords(name)) || Boolean(user.usernames?.find(({ username }) => searchWords(username)));
   });
 }
 
@@ -268,3 +269,7 @@ export function getUserColorKey(peer: ApiUser | ApiChat | undefined) {
 
   return USER_COLOR_KEYS[index];
 }
+
+export function getMainUsername(userOrChat: ApiUser | ApiChat) {
+  return userOrChat.usernames?.find((u) => u.isActive)?.username;
+}

src/global/selectors/chats.ts

@@ -175,7 +175,7 @@ export function selectIsChatPinned(global: GlobalState, chatId: string, folderId
 export function selectChatByUsername(global: GlobalState, username: string) {
   const usernameLowered = username.toLowerCase();
   return Object.values(global.chats.byId).find(
-    (chat) => chat.username && chat.username.toLowerCase() === usernameLowered,
+    (chat) => chat.usernames?.some((c) => c.username.toLowerCase() === usernameLowered),
   );
 }
 

src/global/selectors/users.ts

@@ -30,7 +30,7 @@ export function selectIsPremiumPurchaseBlocked(global: GlobalState) {
 export function selectUserByUsername(global: GlobalState, username: string) {
   const usernameLowered = username.toLowerCase();
   return Object.values(global.users.byId).find(
-    (user) => user.username.toLowerCase() === usernameLowered,
+    (user) => user.usernames?.some((u) => u.username.toLowerCase() === usernameLowered),
   );
 }
 

src/global/types.ts

@@ -523,6 +523,7 @@ export type GlobalState = {
     progress: ProfileEditProgress;
     checkedUsername?: string;
     isUsernameAvailable?: boolean;
+    error?: string;
   };
 
   notifications: ApiNotification[];
@@ -1119,6 +1120,22 @@ export interface ActionPayloads {
     hash: string;
   };
   terminateAllWebAuthorizations: never;
+  toggleUsername: {
+    username: string;
+    isActive: boolean;
+  };
+  sortUsernames: {
+    usernames: string[];
+  };
+  toggleChatUsername: {
+    chatId: string;
+    username: string;
+    isActive: boolean;
+  };
+  sortChatUsernames: {
+    chatId: string;
+    usernames: string[];
+  };
 
   // Misc
   openPollModal: {

src/lib/gramjs/client/MockClient.ts

@@ -240,6 +240,7 @@ class TelegramClient {
 
             return new Api.messages.ChannelMessages({
                 messages: peer.TEST_messages,
+                topics: [],
                 pts: 0,
                 count: peer.TEST_messages.length,
                 chats: [],

src/lib/gramjs/tl/AllTLObjects.js

@@ -1,6 +1,6 @@
 const api = require('./api');
 
-const LAYER = 147;
+const LAYER = 149;
 const tlobjects = {};
 
 for (const tl of Object.values(api)) {

src/lib/gramjs/tl/apiTl.js

@@ -64,7 +64,7 @@ storage.fileMov#4b09ebbc = storage.FileType;
 storage.fileMp4#b3cea0e4 = storage.FileType;
 storage.fileWebp#1081464c = storage.FileType;
 userEmpty#d3bc4b7a id:long = User;
-user#5d99adee flags:# self:flags.10?true contact:flags.11?true mutual_contact:flags.12?true deleted:flags.13?true bot:flags.14?true bot_chat_history:flags.15?true bot_nochats:flags.16?true verified:flags.17?true restricted:flags.18?true min:flags.20?true bot_inline_geo:flags.21?true support:flags.23?true scam:flags.24?true apply_min_photo:flags.25?true fake:flags.26?true bot_attach_menu:flags.27?true premium:flags.28?true attach_menu_enabled:flags.29?true id:long access_hash:flags.0?long first_name:flags.1?string last_name:flags.2?string username:flags.3?string phone:flags.4?string photo:flags.5?UserProfilePhoto status:flags.6?UserStatus bot_info_version:flags.14?int restriction_reason:flags.18?Vector<RestrictionReason> bot_inline_placeholder:flags.19?string lang_code:flags.22?string emoji_status:flags.30?EmojiStatus = User;
+user#8f97c628 flags:# self:flags.10?true contact:flags.11?true mutual_contact:flags.12?true deleted:flags.13?true bot:flags.14?true bot_chat_history:flags.15?true bot_nochats:flags.16?true verified:flags.17?true restricted:flags.18?true min:flags.20?true bot_inline_geo:flags.21?true support:flags.23?true scam:flags.24?true apply_min_photo:flags.25?true fake:flags.26?true bot_attach_menu:flags.27?true premium:flags.28?true attach_menu_enabled:flags.29?true flags2:# id:long access_hash:flags.0?long first_name:flags.1?string last_name:flags.2?string username:flags.3?string phone:flags.4?string photo:flags.5?UserProfilePhoto status:flags.6?UserStatus bot_info_version:flags.14?int restriction_reason:flags.18?Vector<RestrictionReason> bot_inline_placeholder:flags.19?string lang_code:flags.22?string emoji_status:flags.30?EmojiStatus usernames:flags2.0?Vector<Username> = User;
 userProfilePhotoEmpty#4f11bae1 = UserProfilePhoto;
 userProfilePhoto#82d1f706 flags:# has_video:flags.0?true photo_id:long stripped_thumb:flags.1?bytes dc_id:int = UserProfilePhoto;
 userStatusEmpty#9d05049 = UserStatus;
@@ -76,7 +76,7 @@ userStatusLastMonth#77ebc742 = UserStatus;
 chatEmpty#29562865 id:long = Chat;
 chat#41cbf256 flags:# creator:flags.0?true left:flags.2?true deactivated:flags.5?true call_active:flags.23?true call_not_empty:flags.24?true noforwards:flags.25?true id:long title:string photo:ChatPhoto participants_count:int date:int version:int migrated_to:flags.6?InputChannel admin_rights:flags.14?ChatAdminRights default_banned_rights:flags.18?ChatBannedRights = Chat;
 chatForbidden#6592a1a7 id:long title:string = Chat;
-channel#8261ac61 flags:# creator:flags.0?true left:flags.2?true broadcast:flags.5?true verified:flags.7?true megagroup:flags.8?true restricted:flags.9?true signatures:flags.11?true min:flags.12?true scam:flags.19?true has_link:flags.20?true has_geo:flags.21?true slowmode_enabled:flags.22?true call_active:flags.23?true call_not_empty:flags.24?true fake:flags.25?true gigagroup:flags.26?true noforwards:flags.27?true join_to_send:flags.28?true join_request:flags.29?true id:long access_hash:flags.13?long title:string username:flags.6?string photo:ChatPhoto date:int restriction_reason:flags.9?Vector<RestrictionReason> admin_rights:flags.14?ChatAdminRights banned_rights:flags.15?ChatBannedRights default_banned_rights:flags.18?ChatBannedRights participants_count:flags.17?int = Chat;
+channel#83259464 flags:# creator:flags.0?true left:flags.2?true broadcast:flags.5?true verified:flags.7?true megagroup:flags.8?true restricted:flags.9?true signatures:flags.11?true min:flags.12?true scam:flags.19?true has_link:flags.20?true has_geo:flags.21?true slowmode_enabled:flags.22?true call_active:flags.23?true call_not_empty:flags.24?true fake:flags.25?true gigagroup:flags.26?true noforwards:flags.27?true join_to_send:flags.28?true join_request:flags.29?true forum:flags.30?true flags2:# id:long access_hash:flags.13?long title:string username:flags.6?string photo:ChatPhoto date:int restriction_reason:flags.9?Vector<RestrictionReason> admin_rights:flags.14?ChatAdminRights banned_rights:flags.15?ChatBannedRights default_banned_rights:flags.18?ChatBannedRights participants_count:flags.17?int usernames:flags2.0?Vector<Username> = Chat;
 channelForbidden#17d493d5 flags:# broadcast:flags.5?true megagroup:flags.8?true id:long access_hash:long title:string until_date:flags.16?int = Chat;
 chatFull#c9d31138 flags:# can_set_username:flags.7?true has_scheduled:flags.8?true id:long about:string participants:ChatParticipants chat_photo:flags.2?Photo notify_settings:PeerNotifySettings exported_invite:flags.13?ExportedChatInvite bot_info:flags.3?Vector<BotInfo> pinned_msg_id:flags.6?int folder_id:flags.11?int call:flags.12?InputGroupCall ttl_period:flags.14?int groupcall_default_join_as:flags.15?Peer theme_emoticon:flags.16?string requests_pending:flags.17?int recent_requesters:flags.17?Vector<long> available_reactions:flags.18?ChatReactions = ChatFull;
 channelFull#f2355507 flags:# can_view_participants:flags.3?true can_set_username:flags.6?true can_set_stickers:flags.7?true hidden_prehistory:flags.10?true can_set_location:flags.16?true has_scheduled:flags.19?true can_view_stats:flags.20?true blocked:flags.22?true flags2:# can_delete_channel:flags2.0?true id:long about:string participants_count:flags.0?int admins_count:flags.1?int kicked_count:flags.2?int banned_count:flags.2?int online_count:flags.13?int read_inbox_max_id:int read_outbox_max_id:int unread_count:int chat_photo:Photo notify_settings:PeerNotifySettings exported_invite:flags.23?ExportedChatInvite bot_info:Vector<BotInfo> migrated_from_chat_id:flags.4?long migrated_from_max_id:flags.4?int pinned_msg_id:flags.5?int stickerset:flags.8?StickerSet available_min_id:flags.9?int folder_id:flags.11?int linked_chat_id:flags.14?long location:flags.15?ChannelLocation slowmode_seconds:flags.17?int slowmode_next_send_date:flags.18?int stats_dc:flags.12?int pts:int call:flags.21?InputGroupCall ttl_period:flags.24?int pending_suggestions:flags.25?Vector<string> groupcall_default_join_as:flags.26?Peer theme_emoticon:flags.27?string requests_pending:flags.28?int recent_requesters:flags.28?Vector<long> default_send_as:flags.29?Peer available_reactions:flags.30?ChatReactions = ChatFull;
@@ -136,6 +136,8 @@ messageActionChatJoinedByRequest#ebbca3cb = MessageAction;
 messageActionWebViewDataSentMe#47dd8079 text:string data:string = MessageAction;
 messageActionWebViewDataSent#b4c38cb5 text:string = MessageAction;
 messageActionGiftPremium#aba0f5c6 currency:string amount:long months:int = MessageAction;
+messageActionTopicCreate#d999256 flags:# title:string icon_color:int icon_emoji_id:flags.0?long = MessageAction;
+messageActionTopicEdit#b18a431c flags:# title:flags.0?string icon_emoji_id:flags.1?long closed:flags.2?Bool = MessageAction;
 dialog#a8edd0f5 flags:# pinned:flags.2?true unread_mark:flags.3?true peer:Peer top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int notify_settings:PeerNotifySettings pts:flags.0?int draft:flags.1?DraftMessage folder_id:flags.4?int = Dialog;
 dialogFolder#71bd134c flags:# pinned:flags.2?true folder:Folder peer:Peer top_message:int unread_muted_peers_count:int unread_unmuted_peers_count:int unread_muted_messages_count:int unread_unmuted_messages_count:int = Dialog;
 photoEmpty#2331b22d id:long = Photo;
@@ -156,6 +158,7 @@ inputNotifyPeer#b8bc5b0c peer:InputPeer = InputNotifyPeer;
 inputNotifyUsers#193b4417 = InputNotifyPeer;
 inputNotifyChats#4a95e84e = InputNotifyPeer;
 inputNotifyBroadcasts#b1db7c7e = InputNotifyPeer;
+inputNotifyForumTopic#5c467992 peer:InputPeer top_msg_id:int = InputNotifyPeer;
 inputPeerNotifySettings#df1f002b flags:# show_previews:flags.0?Bool silent:flags.1?Bool mute_until:flags.2?int sound:flags.3?NotificationSound = InputPeerNotifySettings;
 peerNotifySettings#a83b0426 flags:# show_previews:flags.0?Bool silent:flags.1?Bool mute_until:flags.2?int ios_sound:flags.3?NotificationSound android_sound:flags.4?NotificationSound other_sound:flags.5?NotificationSound = PeerNotifySettings;
 peerSettings#a518110d flags:# report_spam:flags.0?true add_contact:flags.1?true block_contact:flags.2?true share_contact:flags.3?true need_contacts_exception:flags.4?true report_geo:flags.5?true autoarchived:flags.7?true invite_members:flags.8?true request_chat_broadcast:flags.10?true geo_distance:flags.6?int request_chat_title:flags.9?string request_chat_date:flags.9?int = PeerSettings;
@@ -185,7 +188,7 @@ messages.dialogsSlice#71e094f3 count:int dialogs:Vector<Dialog> messages:Vector<
 messages.dialogsNotModified#f0e3e596 count:int = messages.Dialogs;
 messages.messages#8c718e87 messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Messages;
 messages.messagesSlice#3a54685e flags:# inexact:flags.1?true count:int next_rate:flags.0?int offset_id_offset:flags.2?int messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Messages;
-messages.channelMessages#64479808 flags:# inexact:flags.1?true pts:int count:int offset_id_offset:flags.2?int messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Messages;
+messages.channelMessages#c776ba4e flags:# inexact:flags.1?true pts:int count:int offset_id_offset:flags.2?int messages:Vector<Message> topics:Vector<ForumTopic> chats:Vector<Chat> users:Vector<User> = messages.Messages;
 messages.messagesNotModified#74535f21 count:int = messages.Messages;
 messages.chats#64ff9fd5 chats:Vector<Chat> = messages.Chats;
 messages.chatsSlice#9cd81144 count:int chats:Vector<Chat> = messages.Chats;
@@ -215,7 +218,7 @@ updateUserTyping#c01e857f user_id:long action:SendMessageAction = Update;
 updateChatUserTyping#83487af0 chat_id:long from_id:Peer action:SendMessageAction = Update;
 updateChatParticipants#7761198 participants:ChatParticipants = Update;
 updateUserStatus#e5bdf8de user_id:long status:UserStatus = Update;
-updateUserName#c3f202e0 user_id:long first_name:string last_name:string username:string = Update;
+updateUserName#a7848924 user_id:long first_name:string last_name:string usernames:Vector<Username> = Update;
 updateUserPhoto#f227868c user_id:long date:int photo:UserProfilePhoto previous:Bool = Update;
 updateNewEncryptedMessage#12bcbd9a message:EncryptedMessage qts:int = Update;
 updateEncryptedChatTyping#1710f156 chat_id:int = Update;
@@ -250,7 +253,7 @@ updateBotCallbackQuery#b9cfc48d flags:# query_id:long user_id:long peer:Peer msg
 updateEditMessage#e40370a3 message:Message pts:int pts_count:int = Update;
 updateInlineBotCallbackQuery#691e9052 flags:# query_id:long user_id:long msg_id:InputBotInlineMessageID chat_instance:long data:flags.0?bytes game_short_name:flags.1?string = Update;
 updateReadChannelOutbox#b75f99a9 channel_id:long max_id:int = Update;
-updateDraftMessage#ee2bb969 peer:Peer draft:DraftMessage = Update;
+updateDraftMessage#1b49ec6d flags:# peer:Peer top_msg_id:flags.0?int draft:DraftMessage = Update;
 updateReadFeaturedStickers#571d2742 = Update;
 updateRecentStickers#9a422c20 = Update;
 updateConfig#a229dd06 = Update;
@@ -266,7 +269,7 @@ updatePhoneCall#ab0f6b1e phone_call:PhoneCall = Update;
 updateLangPackTooLong#46560264 lang_code:string = Update;
 updateLangPack#56022f4d difference:LangPackDifference = Update;
 updateFavedStickers#e511996d = Update;
-updateChannelReadMessagesContents#44bdd535 channel_id:long messages:Vector<int> = Update;
+updateChannelReadMessagesContents#ea29055d flags:# channel_id:long top_msg_id:flags.0?int messages:Vector<int> = Update;
 updateContactsReset#7084a7be = Update;
 updateChannelAvailableMessages#b23fc698 channel_id:long available_min_id:int = Update;
 updateDialogUnreadMark#e16459c3 flags:# unread:flags.0?true peer:DialogPeer = Update;
@@ -303,7 +306,7 @@ updateGroupCallConnection#b783982 flags:# presentation:flags.0?true params:DataJ
 updateBotCommands#4d712f2e peer:Peer bot_id:long commands:Vector<BotCommand> = Update;
 updatePendingJoinRequests#7063c3db peer:Peer requests_pending:int recent_requesters:Vector<long> = Update;
 updateBotChatInviteRequester#11dfa986 peer:Peer date:int user_id:long about:string invite:ExportedChatInvite qts:int = Update;
-updateMessageReactions#154798c3 peer:Peer msg_id:int reactions:MessageReactions = Update;
+updateMessageReactions#5e1b3cb8 flags:# peer:Peer msg_id:int top_msg_id:flags.0?int reactions:MessageReactions = Update;
 updateAttachMenuBots#17b7a20b = Update;
 updateWebViewResultSent#1592b79d query_id:long = Update;
 updateBotMenuButton#14b85813 bot_id:long button:BotMenuButton = Update;
@@ -315,6 +318,8 @@ updateRecentEmojiStatuses#30f443db = Update;
 updateRecentReactions#6f7863f4 = Update;
 updateMoveStickerSetToTop#86fccf85 flags:# masks:flags.0?true emojis:flags.1?true stickerset:long = Update;
 updateMessageExtendedMedia#5a73a98c peer:Peer msg_id:int extended_media:MessageExtendedMedia = Update;
+updateChannelPinnedTopic#192efbe3 flags:# pinned:flags.0?true channel_id:long topic_id:int = Update;
+updateChannelPinnedTopics#fe198602 flags:# channel_id:long order:flags.0?Vector<int> = Update;
 updates.state#a56c2a3e pts:int qts:int date:int seq:int unread_count:int = updates.State;
 updates.differenceEmpty#5d75a138 date:int seq:int = updates.Difference;
 updates.difference#f49ca0 new_messages:Vector<Message> new_encrypted_messages:Vector<EncryptedMessage> other_updates:Vector<Update> chats:Vector<Chat> users:Vector<User> state:updates.State = updates.Difference;
@@ -365,6 +370,7 @@ notifyPeer#9fd40bd8 peer:Peer = NotifyPeer;
 notifyUsers#b4c83b4c = NotifyPeer;
 notifyChats#c007cec3 = NotifyPeer;
 notifyBroadcasts#d612e8ef = NotifyPeer;
+notifyForumTopic#226e6308 peer:Peer top_msg_id:int = NotifyPeer;
 sendMessageTypingAction#16bf744e = SendMessageAction;
 sendMessageCancelAction#fd5ec8f5 = SendMessageAction;
 sendMessageRecordVideoAction#a187d66f = SendMessageAction;
@@ -459,6 +465,7 @@ inputStickerSetAnimatedEmojiAnimations#cde3739 = InputStickerSet;
 inputStickerSetPremiumGifts#c88b3b02 = InputStickerSet;
 inputStickerSetEmojiGenericAnimations#4c4d4ce = InputStickerSet;
 inputStickerSetEmojiDefaultStatuses#29d0f5ee = InputStickerSet;
+inputStickerSetEmojiDefaultTopicIcons#44c1f8e9 = InputStickerSet;
 stickerSet#2dd14edc flags:# archived:flags.1?true official:flags.2?true masks:flags.3?true animated:flags.5?true videos:flags.6?true emojis:flags.7?true installed_date:flags.0?int id:long access_hash:long title:string short_name:string thumbs:flags.4?Vector<PhotoSize> thumb_dc_id:flags.4?int thumb_version:flags.4?int thumb_document_id:flags.8?long count:int hash:int = StickerSet;
 messages.stickerSet#6e153f16 set:StickerSet packs:Vector<StickerPack> keywords:Vector<StickerKeyword> documents:Vector<Document> = messages.StickerSet;
 messages.stickerSetNotModified#d3f924eb = messages.StickerSet;
@@ -739,6 +746,12 @@ channelAdminLogEventActionParticipantJoinByRequest#afb6144a invite:ExportedChatI
 channelAdminLogEventActionToggleNoForwards#cb2ac766 new_value:Bool = ChannelAdminLogEventAction;
 channelAdminLogEventActionSendMessage#278f2868 message:Message = ChannelAdminLogEventAction;
 channelAdminLogEventActionChangeAvailableReactions#be4e0ef8 prev_value:ChatReactions new_value:ChatReactions = ChannelAdminLogEventAction;
+channelAdminLogEventActionChangeUsernames#f04fb3a9 prev_value:Vector<string> new_value:Vector<string> = ChannelAdminLogEventAction;
+channelAdminLogEventActionToggleForum#2cc6383 new_value:Bool = ChannelAdminLogEventAction;
+channelAdminLogEventActionCreateTopic#58707d28 topic:ForumTopic = ChannelAdminLogEventAction;
+channelAdminLogEventActionEditTopic#f06fe208 prev_topic:ForumTopic new_topic:ForumTopic = ChannelAdminLogEventAction;
+channelAdminLogEventActionDeleteTopic#ae168909 topic:ForumTopic = ChannelAdminLogEventAction;
+channelAdminLogEventActionPinTopic#5d8d353b flags:# prev_topic:flags.0?ForumTopic new_topic:flags.1?ForumTopic = ChannelAdminLogEventAction;
 channelAdminLogEvent#1fad68cd id:long date:int user_id:long action:ChannelAdminLogEventAction = ChannelAdminLogEvent;
 channels.adminLogResults#ed8af74d events:Vector<ChannelAdminLogEvent> chats:Vector<Chat> users:Vector<User> = channels.AdminLogResults;
 channelAdminLogEventsFilter#ea107ae4 flags:# join:flags.0?true leave:flags.1?true invite:flags.2?true ban:flags.3?true unban:flags.4?true kick:flags.5?true unkick:flags.6?true promote:flags.7?true demote:flags.8?true info:flags.9?true settings:flags.10?true pinned:flags.11?true edit:flags.12?true delete:flags.13?true group_call:flags.14?true invites:flags.15?true send:flags.16?true forums:flags.17?true = ChannelAdminLogEventsFilter;
@@ -845,8 +858,8 @@ pollAnswerVoters#3b6ddad2 flags:# chosen:flags.0?true correct:flags.1?true optio
 pollResults#dcb82ea3 flags:# min:flags.0?true results:flags.1?Vector<PollAnswerVoters> total_voters:flags.2?int recent_voters:flags.3?Vector<long> solution:flags.4?string solution_entities:flags.4?Vector<MessageEntity> = PollResults;
 chatOnlines#f041e250 onlines:int = ChatOnlines;
 statsURL#47a971e0 url:string = StatsURL;
-chatAdminRights#5fb224d5 flags:# change_info:flags.0?true post_messages:flags.1?true edit_messages:flags.2?true delete_messages:flags.3?true ban_users:flags.4?true invite_users:flags.5?true pin_messages:flags.7?true add_admins:flags.9?true anonymous:flags.10?true manage_call:flags.11?true other:flags.12?true = ChatAdminRights;
-chatBannedRights#9f120418 flags:# view_messages:flags.0?true send_messages:flags.1?true send_media:flags.2?true send_stickers:flags.3?true send_gifs:flags.4?true send_games:flags.5?true send_inline:flags.6?true embed_links:flags.7?true send_polls:flags.8?true change_info:flags.10?true invite_users:flags.15?true pin_messages:flags.17?true until_date:int = ChatBannedRights;
+chatAdminRights#5fb224d5 flags:# change_info:flags.0?true post_messages:flags.1?true edit_messages:flags.2?true delete_messages:flags.3?true ban_users:flags.4?true invite_users:flags.5?true pin_messages:flags.7?true add_admins:flags.9?true anonymous:flags.10?true manage_call:flags.11?true other:flags.12?true manage_topics:flags.13?true = ChatAdminRights;
+chatBannedRights#9f120418 flags:# view_messages:flags.0?true send_messages:flags.1?true send_media:flags.2?true send_stickers:flags.3?true send_gifs:flags.4?true send_games:flags.5?true send_inline:flags.6?true embed_links:flags.7?true send_polls:flags.8?true change_info:flags.10?true invite_users:flags.15?true pin_messages:flags.17?true manage_topics:flags.18?true until_date:int = ChatBannedRights;
 inputWallPaper#e630b979 id:long access_hash:long = InputWallPaper;
 inputWallPaperSlug#72091c80 slug:string = InputWallPaper;
 inputWallPaperNoFile#967a462e id:long = InputWallPaper;
@@ -923,7 +936,7 @@ help.countriesList#87d0759e countries:Vector<help.Country> hash:int = help.Count
 messageViews#455b853d flags:# views:flags.0?int forwards:flags.1?int replies:flags.2?MessageReplies = MessageViews;
 messages.messageViews#b6c4f543 views:Vector<MessageViews> chats:Vector<Chat> users:Vector<User> = messages.MessageViews;
 messages.discussionMessage#a6341782 flags:# messages:Vector<Message> max_id:flags.0?int read_inbox_max_id:flags.1?int read_outbox_max_id:flags.2?int unread_count:int chats:Vector<Chat> users:Vector<User> = messages.DiscussionMessage;
-messageReplyHeader#a6d57763 flags:# reply_to_scheduled:flags.2?true reply_to_msg_id:int reply_to_peer_id:flags.0?Peer reply_to_top_id:flags.1?int = MessageReplyHeader;
+messageReplyHeader#a6d57763 flags:# reply_to_scheduled:flags.2?true forum_topic:flags.3?true reply_to_msg_id:int reply_to_peer_id:flags.0?Peer reply_to_top_id:flags.1?int = MessageReplyHeader;
 messageReplies#83d60fc2 flags:# comments:flags.0?true replies:int replies_pts:int recent_repliers:flags.1?Vector<Peer> channel_id:flags.0?long max_id:flags.2?int read_max_id:flags.3?int = MessageReplies;
 peerBlocked#e8fd8014 peer_id:Peer date:int = PeerBlocked;
 stats.messageStats#8999f295 views_graph:StatsGraph = stats.MessageStats;
@@ -964,8 +977,9 @@ botCommandScopePeerUser#a1321f3 peer:InputPeer user_id:InputUser = BotCommandSco
 account.resetPasswordFailedWait#e3779861 retry_date:int = account.ResetPasswordResult;
 account.resetPasswordRequestedWait#e9effc7d until_date:int = account.ResetPasswordResult;
 account.resetPasswordOk#e926d63e = account.ResetPasswordResult;
-sponsoredMessage#3a836df8 flags:# recommended:flags.5?true random_id:bytes from_id:flags.3?Peer chat_invite:flags.4?ChatInvite chat_invite_hash:flags.4?string channel_post:flags.2?int start_param:flags.0?string message:string entities:flags.1?Vector<MessageEntity> = SponsoredMessage;
-messages.sponsoredMessages#65a4c7d5 messages:Vector<SponsoredMessage> chats:Vector<Chat> users:Vector<User> = messages.SponsoredMessages;
+sponsoredMessage#3a836df8 flags:# recommended:flags.5?true show_peer_photo:flags.6?true random_id:bytes from_id:flags.3?Peer chat_invite:flags.4?ChatInvite chat_invite_hash:flags.4?string channel_post:flags.2?int start_param:flags.0?string message:string entities:flags.1?Vector<MessageEntity> = SponsoredMessage;
+messages.sponsoredMessages#c9ee1d87 flags:# posts_between:flags.0?int messages:Vector<SponsoredMessage> chats:Vector<Chat> users:Vector<User> = messages.SponsoredMessages;
+messages.sponsoredMessagesEmpty#1839490f = messages.SponsoredMessages;
 searchResultsCalendarPeriod#c9b0539f date:int min_msg_id:int max_msg_id:int count:int = SearchResultsCalendarPeriod;
 messages.searchResultsCalendar#147ee23c flags:# inexact:flags.0?true count:int min_date:int min_msg_id:int offset_id_offset:flags.1?int periods:Vector<SearchResultsCalendarPeriod> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.SearchResultsCalendar;
 searchResultPosition#7f648b67 msg_id:int date:int offset:int = SearchResultsPosition;
@@ -1046,6 +1060,10 @@ sendAsPeer#b81c7034 flags:# premium_required:flags.0?true peer:Peer = SendAsPeer
 messageExtendedMediaPreview#ad628cc8 flags:# w:flags.0?int h:flags.0?int thumb:flags.1?PhotoSize video_duration:flags.2?int = MessageExtendedMedia;
 messageExtendedMedia#ee479c64 media:MessageMedia = MessageExtendedMedia;
 stickerKeyword#fcfeb29c document_id:long keyword:Vector<string> = StickerKeyword;
+username#b4073647 flags:# editable:flags.0?true active:flags.1?true username:string = Username;
+forumTopicDeleted#23f109b id:int = ForumTopic;
+forumTopic#71701da9 flags:# my:flags.1?true closed:flags.2?true pinned:flags.3?true short:flags.5?true id:int date:int title:string icon_color:int icon_emoji_id:flags.0?long top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int from_id:Peer notify_settings:PeerNotifySettings draft:flags.4?DraftMessage = ForumTopic;
+messages.forumTopics#367617d3 flags:# order_by_create_date:flags.0?true count:int topics:Vector<ForumTopic> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> pts:int = messages.ForumTopics;
 ---functions---
 initConnection#c1cd5ea9 {X:Type} flags:# api_id:int device_model:string system_version:string app_version:string system_lang_code:string lang_pack:string lang_code:string proxy:flags.0?InputClientProxy params:flags.1?JSONValue query:!X = X;
 invokeWithLayer#da9b0d0d {X:Type} layer:int query:!X = X;
@@ -1101,6 +1119,8 @@ account.setGlobalPrivacySettings#1edaaac2 settings:GlobalPrivacySettings = Globa
 account.reportProfilePhoto#fa8cc6f5 peer:InputPeer photo_id:InputPhoto reason:ReportReason message:string = Bool;
 account.setAuthorizationTTL#bf899aa0 authorization_ttl_days:int = Bool;
 account.changeAuthorizationSettings#40f48462 flags:# hash:long encrypted_requests_disabled:flags.0?Bool call_requests_disabled:flags.1?Bool = Bool;
+account.reorderUsernames#ef500eab order:Vector<string> = Bool;
+account.toggleUsername#58d6b376 username:string active:Bool = Bool;
 users.getUsers#d91a548 id:Vector<InputUser> = Vector<User>;
 users.getFullUser#b60f5918 id:InputUser = users.UserFull;
 contacts.getContacts#5dd69e12 hash:long = contacts.Contacts;
@@ -1123,9 +1143,9 @@ messages.deleteHistory#b08f922a flags:# just_clear:flags.0?true revoke:flags.1?t
 messages.deleteMessages#e58e95d2 flags:# revoke:flags.0?true id:Vector<int> = messages.AffectedMessages;
 messages.receivedMessages#5a954c0 max_id:int = Vector<ReceivedNotifyMessage>;
 messages.setTyping#58943ee2 flags:# peer:InputPeer top_msg_id:flags.0?int action:SendMessageAction = Bool;
-messages.sendMessage#d9d75a4 flags:# no_webpage:flags.1?true silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true peer:InputPeer reply_to_msg_id:flags.0?int message:string random_id:long reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
-messages.sendMedia#e25ff8e0 flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true peer:InputPeer reply_to_msg_id:flags.0?int media:InputMedia message:string random_id:long reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
-messages.forwardMessages#cc30290b flags:# silent:flags.5?true background:flags.6?true with_my_score:flags.8?true drop_author:flags.11?true drop_media_captions:flags.12?true noforwards:flags.14?true from_peer:InputPeer id:Vector<int> random_id:Vector<long> to_peer:InputPeer schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
+messages.sendMessage#1cc20387 flags:# no_webpage:flags.1?true silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true peer:InputPeer reply_to_msg_id:flags.0?int top_msg_id:flags.9?int message:string random_id:long reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
+messages.sendMedia#7547c966 flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true peer:InputPeer reply_to_msg_id:flags.0?int top_msg_id:flags.9?int media:InputMedia message:string random_id:long reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
+messages.forwardMessages#c661bbc4 flags:# silent:flags.5?true background:flags.6?true with_my_score:flags.8?true drop_author:flags.11?true drop_media_captions:flags.12?true noforwards:flags.14?true from_peer:InputPeer id:Vector<int> random_id:Vector<long> to_peer:InputPeer top_msg_id:flags.9?int schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
 messages.reportSpam#cf1592db peer:InputPeer = Bool;
 messages.getPeerSettings#efd9a6a2 peer:InputPeer = messages.PeerSettings;
 messages.report#8953ab4e peer:InputPeer id:Vector<int> reason:ReportReason message:string = Bool;
@@ -1154,11 +1174,11 @@ messages.getDocumentByHash#b1f2061f sha256:bytes size:long mime_type:string = Do
 messages.getSavedGifs#5cf09635 hash:long = messages.SavedGifs;
 messages.saveGif#327a30cb id:InputDocument unsave:Bool = Bool;
 messages.getInlineBotResults#514e999d flags:# bot:InputUser peer:InputPeer geo_point:flags.0?InputGeoPoint query:string offset:string = messages.BotResults;
-messages.sendInlineBotResult#7aa11297 flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true hide_via:flags.11?true peer:InputPeer reply_to_msg_id:flags.0?int random_id:long query_id:long id:string schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
+messages.sendInlineBotResult#d3fbdccb flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true hide_via:flags.11?true peer:InputPeer reply_to_msg_id:flags.0?int top_msg_id:flags.9?int random_id:long query_id:long id:string schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
 messages.editMessage#48f71778 flags:# no_webpage:flags.1?true peer:InputPeer id:int message:flags.11?string media:flags.14?InputMedia reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.15?int = Updates;
 messages.getBotCallbackAnswer#9342ca07 flags:# game:flags.1?true peer:InputPeer msg_id:int data:flags.0?bytes password:flags.2?InputCheckPasswordSRP = messages.BotCallbackAnswer;
 messages.getPeerDialogs#e470bcfd peers:Vector<InputDialogPeer> = messages.PeerDialogs;
-messages.saveDraft#bc39e14b flags:# no_webpage:flags.1?true reply_to_msg_id:flags.0?int peer:InputPeer message:string entities:flags.3?Vector<MessageEntity> = Bool;
+messages.saveDraft#b4331e3f flags:# no_webpage:flags.1?true reply_to_msg_id:flags.0?int top_msg_id:flags.2?int peer:InputPeer message:string entities:flags.3?Vector<MessageEntity> = Bool;
 messages.getFeaturedStickers#64780b14 hash:long = messages.FeaturedStickers;
 messages.readFeaturedStickers#5b118126 id:Vector<long> = Bool;
 messages.getRecentStickers#9da9403b flags:# attached:flags.0?true hash:long = messages.RecentStickers;
@@ -1171,9 +1191,9 @@ messages.getPinnedDialogs#d6b94df2 folder_id:int = messages.PeerDialogs;
 messages.uploadMedia#519bc2b1 peer:InputPeer media:InputMedia = MessageMedia;
 messages.getFavedStickers#4f1aaa9 hash:long = messages.FavedStickers;
 messages.faveSticker#b9ffc55b id:InputDocument unfave:Bool = Bool;
-messages.getUnreadMentions#46578472 peer:InputPeer offset_id:int add_offset:int limit:int max_id:int min_id:int = messages.Messages;
-messages.readMentions#f0189d3 peer:InputPeer = messages.AffectedHistory;
-messages.sendMultiMedia#f803138f flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true peer:InputPeer reply_to_msg_id:flags.0?int multi_media:Vector<InputSingleMedia> schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
+messages.getUnreadMentions#f107e790 flags:# peer:InputPeer top_msg_id:flags.0?int offset_id:int add_offset:int limit:int max_id:int min_id:int = messages.Messages;
+messages.readMentions#36e5bf4d flags:# peer:InputPeer top_msg_id:flags.0?int = messages.AffectedHistory;
+messages.sendMultiMedia#b6f11a1c flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true peer:InputPeer reply_to_msg_id:flags.0?int top_msg_id:flags.9?int multi_media:Vector<InputSingleMedia> schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
 messages.searchStickerSets#35705b8a flags:# exclude_featured:flags.0?true q:string hash:long = messages.FoundStickerSets;
 messages.markDialogUnread#c286d98f flags:# unread:flags.0?true peer:InputDialogPeer = Bool;
 messages.updatePinnedMessage#d2aaf7ec flags:# silent:flags.0?true unpin:flags.1?true pm_oneside:flags.2?true peer:InputPeer id:int = Updates;
@@ -1196,7 +1216,7 @@ messages.updateDialogFiltersOrder#c563c1e4 order:Vector<int> = Bool;
 messages.getReplies#22ddd30c peer:InputPeer msg_id:int offset_id:int offset_date:int add_offset:int limit:int max_id:int min_id:int hash:long = messages.Messages;
 messages.getDiscussionMessage#446972fd peer:InputPeer msg_id:int = messages.DiscussionMessage;
 messages.readDiscussion#f731a9f4 peer:InputPeer msg_id:int read_max_id:int = Bool;
-messages.unpinAllMessages#f025bc8b peer:InputPeer = messages.AffectedHistory;
+messages.unpinAllMessages#ee22b9a8 flags:# peer:InputPeer top_msg_id:flags.0?int = messages.AffectedHistory;
 messages.deleteChat#5bd0ee50 chat_id:long = Bool;
 messages.getExportedChatInvites#a2b5a3f6 flags:# revoked:flags.3?true peer:InputPeer admin_id:InputUser offset_date:flags.2?int offset_link:flags.2?string limit:int = messages.ExportedChatInvites;
 messages.editExportedChatInvite#bdca2f75 flags:# revoked:flags.2?true peer:InputPeer link:string expire_date:flags.0?int usage_limit:flags.1?int request_needed:flags.3?Bool title:flags.4?string = messages.ExportedChatInvite;
@@ -1214,13 +1234,13 @@ messages.getMessageReactionsList#461b3f48 flags:# peer:InputPeer id:int reaction
 messages.setChatAvailableReactions#feb16771 peer:InputPeer available_reactions:ChatReactions = Updates;
 messages.getAvailableReactions#18dea0ac hash:int = messages.AvailableReactions;
 messages.setDefaultReaction#4f47a016 reaction:Reaction = Bool;
-messages.getUnreadReactions#e85bae1a peer:InputPeer offset_id:int add_offset:int limit:int max_id:int min_id:int = messages.Messages;
-messages.readReactions#82e251d7 peer:InputPeer = messages.AffectedHistory;
+messages.getUnreadReactions#3223495b flags:# peer:InputPeer top_msg_id:flags.0?int offset_id:int add_offset:int limit:int max_id:int min_id:int = messages.Messages;
+messages.readReactions#54aa7f8e flags:# peer:InputPeer top_msg_id:flags.0?int = messages.AffectedHistory;
 messages.getAttachMenuBots#16fcc2cb hash:long = AttachMenuBots;
 messages.getAttachMenuBot#77216192 bot:InputUser = AttachMenuBotsBot;
 messages.toggleBotInAttachMenu#1aee33af bot:InputUser enabled:Bool = Bool;
-messages.requestWebView#fc87a53c flags:# from_bot_menu:flags.4?true silent:flags.5?true peer:InputPeer bot:InputUser url:flags.1?string start_param:flags.3?string theme_params:flags.2?DataJSON platform:string reply_to_msg_id:flags.0?int send_as:flags.13?InputPeer = WebViewResult;
-messages.prolongWebView#ea5fbcce flags:# silent:flags.5?true peer:InputPeer bot:InputUser query_id:long reply_to_msg_id:flags.0?int send_as:flags.13?InputPeer = Bool;
+messages.requestWebView#178b480b flags:# from_bot_menu:flags.4?true silent:flags.5?true peer:InputPeer bot:InputUser url:flags.1?string start_param:flags.3?string theme_params:flags.2?DataJSON platform:string reply_to_msg_id:flags.0?int top_msg_id:flags.9?int send_as:flags.13?InputPeer = WebViewResult;
+messages.prolongWebView#7ff34309 flags:# silent:flags.5?true peer:InputPeer bot:InputUser query_id:long reply_to_msg_id:flags.0?int top_msg_id:flags.9?int send_as:flags.13?InputPeer = Bool;
 messages.requestSimpleWebView#299bec8e flags:# bot:InputUser url:string theme_params:flags.0?DataJSON platform:string = SimpleWebViewResult;
 messages.sendWebViewResultMessage#a4314f5 bot_query_id:string result:InputBotInlineResult = WebViewMessageSent;
 messages.sendWebViewData#dc0242c8 bot:InputUser random_id:long button_text:string data:string = Updates;
@@ -1275,6 +1295,8 @@ channels.getSponsoredMessages#ec210fbf channel:InputChannel = messages.Sponsored
 channels.getSendAs#dc770ee peer:InputPeer = channels.SendAsPeers;
 channels.toggleJoinToSend#e4cb9580 channel:InputChannel enabled:Bool = Updates;
 channels.toggleJoinRequest#4c2985b6 channel:InputChannel enabled:Bool = Updates;
+channels.reorderUsernames#b45ced1d channel:InputChannel order:Vector<string> = Bool;
+channels.toggleUsername#50f24105 channel:InputChannel username:string active:Bool = Bool;
 payments.getPaymentForm#37148dbb flags:# invoice:InputInvoice theme_params:flags.0?DataJSON = payments.PaymentForm;
 payments.getPaymentReceipt#2478d1cc peer:InputPeer msg_id:int = payments.PaymentReceipt;
 payments.validateRequestedInfo#b6c8f12b flags:# save:flags.0?true invoice:InputInvoice info:PaymentRequestedInfo = payments.ValidatedRequestedInfo;

src/lib/gramjs/tl/static/api.json

@@ -53,6 +53,8 @@
     "account.reportProfilePhoto",
     "account.changeAuthorizationSettings",
     "account.setAuthorizationTTL",
+    "account.reorderUsernames",
+    "account.toggleUsername",
     "users.getUsers",
     "users.getFullUser",
     "contacts.getContacts",
@@ -201,6 +203,8 @@
     "channels.getSendAs",
     "channels.toggleJoinToSend",
     "channels.toggleJoinRequest",
+    "channels.reorderUsernames",
+    "channels.toggleUsername",
     "channels.viewSponsoredMessage",
     "channels.getSponsoredMessages",
     "payments.getPaymentForm",

src/lib/gramjs/tl/static/api.tl

@@ -80,7 +80,7 @@ storage.fileMp4#b3cea0e4 = storage.FileType;
 storage.fileWebp#1081464c = storage.FileType;
 
 userEmpty#d3bc4b7a id:long = User;
-user#5d99adee flags:# self:flags.10?true contact:flags.11?true mutual_contact:flags.12?true deleted:flags.13?true bot:flags.14?true bot_chat_history:flags.15?true bot_nochats:flags.16?true verified:flags.17?true restricted:flags.18?true min:flags.20?true bot_inline_geo:flags.21?true support:flags.23?true scam:flags.24?true apply_min_photo:flags.25?true fake:flags.26?true bot_attach_menu:flags.27?true premium:flags.28?true attach_menu_enabled:flags.29?true id:long access_hash:flags.0?long first_name:flags.1?string last_name:flags.2?string username:flags.3?string phone:flags.4?string photo:flags.5?UserProfilePhoto status:flags.6?UserStatus bot_info_version:flags.14?int restriction_reason:flags.18?Vector<RestrictionReason> bot_inline_placeholder:flags.19?string lang_code:flags.22?string emoji_status:flags.30?EmojiStatus = User;
+user#8f97c628 flags:# self:flags.10?true contact:flags.11?true mutual_contact:flags.12?true deleted:flags.13?true bot:flags.14?true bot_chat_history:flags.15?true bot_nochats:flags.16?true verified:flags.17?true restricted:flags.18?true min:flags.20?true bot_inline_geo:flags.21?true support:flags.23?true scam:flags.24?true apply_min_photo:flags.25?true fake:flags.26?true bot_attach_menu:flags.27?true premium:flags.28?true attach_menu_enabled:flags.29?true flags2:# id:long access_hash:flags.0?long first_name:flags.1?string last_name:flags.2?string username:flags.3?string phone:flags.4?string photo:flags.5?UserProfilePhoto status:flags.6?UserStatus bot_info_version:flags.14?int restriction_reason:flags.18?Vector<RestrictionReason> bot_inline_placeholder:flags.19?string lang_code:flags.22?string emoji_status:flags.30?EmojiStatus usernames:flags2.0?Vector<Username> = User;
 
 userProfilePhotoEmpty#4f11bae1 = UserProfilePhoto;
 userProfilePhoto#82d1f706 flags:# has_video:flags.0?true photo_id:long stripped_thumb:flags.1?bytes dc_id:int = UserProfilePhoto;
@@ -95,7 +95,7 @@ userStatusLastMonth#77ebc742 = UserStatus;
 chatEmpty#29562865 id:long = Chat;
 chat#41cbf256 flags:# creator:flags.0?true left:flags.2?true deactivated:flags.5?true call_active:flags.23?true call_not_empty:flags.24?true noforwards:flags.25?true id:long title:string photo:ChatPhoto participants_count:int date:int version:int migrated_to:flags.6?InputChannel admin_rights:flags.14?ChatAdminRights default_banned_rights:flags.18?ChatBannedRights = Chat;
 chatForbidden#6592a1a7 id:long title:string = Chat;
-channel#8261ac61 flags:# creator:flags.0?true left:flags.2?true broadcast:flags.5?true verified:flags.7?true megagroup:flags.8?true restricted:flags.9?true signatures:flags.11?true min:flags.12?true scam:flags.19?true has_link:flags.20?true has_geo:flags.21?true slowmode_enabled:flags.22?true call_active:flags.23?true call_not_empty:flags.24?true fake:flags.25?true gigagroup:flags.26?true noforwards:flags.27?true join_to_send:flags.28?true join_request:flags.29?true id:long access_hash:flags.13?long title:string username:flags.6?string photo:ChatPhoto date:int restriction_reason:flags.9?Vector<RestrictionReason> admin_rights:flags.14?ChatAdminRights banned_rights:flags.15?ChatBannedRights default_banned_rights:flags.18?ChatBannedRights participants_count:flags.17?int = Chat;
+channel#83259464 flags:# creator:flags.0?true left:flags.2?true broadcast:flags.5?true verified:flags.7?true megagroup:flags.8?true restricted:flags.9?true signatures:flags.11?true min:flags.12?true scam:flags.19?true has_link:flags.20?true has_geo:flags.21?true slowmode_enabled:flags.22?true call_active:flags.23?true call_not_empty:flags.24?true fake:flags.25?true gigagroup:flags.26?true noforwards:flags.27?true join_to_send:flags.28?true join_request:flags.29?true forum:flags.30?true flags2:# id:long access_hash:flags.13?long title:string username:flags.6?string photo:ChatPhoto date:int restriction_reason:flags.9?Vector<RestrictionReason> admin_rights:flags.14?ChatAdminRights banned_rights:flags.15?ChatBannedRights default_banned_rights:flags.18?ChatBannedRights participants_count:flags.17?int usernames:flags2.0?Vector<Username> = Chat;
 channelForbidden#17d493d5 flags:# broadcast:flags.5?true megagroup:flags.8?true id:long access_hash:long title:string until_date:flags.16?int = Chat;
 
 chatFull#c9d31138 flags:# can_set_username:flags.7?true has_scheduled:flags.8?true id:long about:string participants:ChatParticipants chat_photo:flags.2?Photo notify_settings:PeerNotifySettings exported_invite:flags.13?ExportedChatInvite bot_info:flags.3?Vector<BotInfo> pinned_msg_id:flags.6?int folder_id:flags.11?int call:flags.12?InputGroupCall ttl_period:flags.14?int groupcall_default_join_as:flags.15?Peer theme_emoticon:flags.16?string requests_pending:flags.17?int recent_requesters:flags.17?Vector<long> available_reactions:flags.18?ChatReactions = ChatFull;
@@ -162,6 +162,8 @@ messageActionChatJoinedByRequest#ebbca3cb = MessageAction;
 messageActionWebViewDataSentMe#47dd8079 text:string data:string = MessageAction;
 messageActionWebViewDataSent#b4c38cb5 text:string = MessageAction;
 messageActionGiftPremium#aba0f5c6 currency:string amount:long months:int = MessageAction;
+messageActionTopicCreate#d999256 flags:# title:string icon_color:int icon_emoji_id:flags.0?long = MessageAction;
+messageActionTopicEdit#b18a431c flags:# title:flags.0?string icon_emoji_id:flags.1?long closed:flags.2?Bool = MessageAction;
 
 dialog#a8edd0f5 flags:# pinned:flags.2?true unread_mark:flags.3?true peer:Peer top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int notify_settings:PeerNotifySettings pts:flags.0?int draft:flags.1?DraftMessage folder_id:flags.4?int = Dialog;
 dialogFolder#71bd134c flags:# pinned:flags.2?true folder:Folder peer:Peer top_message:int unread_muted_peers_count:int unread_unmuted_peers_count:int unread_muted_messages_count:int unread_unmuted_messages_count:int = Dialog;
@@ -190,6 +192,7 @@ inputNotifyPeer#b8bc5b0c peer:InputPeer = InputNotifyPeer;
 inputNotifyUsers#193b4417 = InputNotifyPeer;
 inputNotifyChats#4a95e84e = InputNotifyPeer;
 inputNotifyBroadcasts#b1db7c7e = InputNotifyPeer;
+inputNotifyForumTopic#5c467992 peer:InputPeer top_msg_id:int = InputNotifyPeer;
 
 inputPeerNotifySettings#df1f002b flags:# show_previews:flags.0?Bool silent:flags.1?Bool mute_until:flags.2?int sound:flags.3?NotificationSound = InputPeerNotifySettings;
 
@@ -233,7 +236,7 @@ messages.dialogsNotModified#f0e3e596 count:int = messages.Dialogs;
 
 messages.messages#8c718e87 messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Messages;
 messages.messagesSlice#3a54685e flags:# inexact:flags.1?true count:int next_rate:flags.0?int offset_id_offset:flags.2?int messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Messages;
-messages.channelMessages#64479808 flags:# inexact:flags.1?true pts:int count:int offset_id_offset:flags.2?int messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Messages;
+messages.channelMessages#c776ba4e flags:# inexact:flags.1?true pts:int count:int offset_id_offset:flags.2?int messages:Vector<Message> topics:Vector<ForumTopic> chats:Vector<Chat> users:Vector<User> = messages.Messages;
 messages.messagesNotModified#74535f21 count:int = messages.Messages;
 
 messages.chats#64ff9fd5 chats:Vector<Chat> = messages.Chats;
@@ -268,7 +271,7 @@ updateUserTyping#c01e857f user_id:long action:SendMessageAction = Update;
 updateChatUserTyping#83487af0 chat_id:long from_id:Peer action:SendMessageAction = Update;
 updateChatParticipants#7761198 participants:ChatParticipants = Update;
 updateUserStatus#e5bdf8de user_id:long status:UserStatus = Update;
-updateUserName#c3f202e0 user_id:long first_name:string last_name:string username:string = Update;
+updateUserName#a7848924 user_id:long first_name:string last_name:string usernames:Vector<Username> = Update;
 updateUserPhoto#f227868c user_id:long date:int photo:UserProfilePhoto previous:Bool = Update;
 updateNewEncryptedMessage#12bcbd9a message:EncryptedMessage qts:int = Update;
 updateEncryptedChatTyping#1710f156 chat_id:int = Update;
@@ -303,7 +306,7 @@ updateBotCallbackQuery#b9cfc48d flags:# query_id:long user_id:long peer:Peer msg
 updateEditMessage#e40370a3 message:Message pts:int pts_count:int = Update;
 updateInlineBotCallbackQuery#691e9052 flags:# query_id:long user_id:long msg_id:InputBotInlineMessageID chat_instance:long data:flags.0?bytes game_short_name:flags.1?string = Update;
 updateReadChannelOutbox#b75f99a9 channel_id:long max_id:int = Update;
-updateDraftMessage#ee2bb969 peer:Peer draft:DraftMessage = Update;
+updateDraftMessage#1b49ec6d flags:# peer:Peer top_msg_id:flags.0?int draft:DraftMessage = Update;
 updateReadFeaturedStickers#571d2742 = Update;
 updateRecentStickers#9a422c20 = Update;
 updateConfig#a229dd06 = Update;
@@ -319,7 +322,7 @@ updatePhoneCall#ab0f6b1e phone_call:PhoneCall = Update;
 updateLangPackTooLong#46560264 lang_code:string = Update;
 updateLangPack#56022f4d difference:LangPackDifference = Update;
 updateFavedStickers#e511996d = Update;
-updateChannelReadMessagesContents#44bdd535 channel_id:long messages:Vector<int> = Update;
+updateChannelReadMessagesContents#ea29055d flags:# channel_id:long top_msg_id:flags.0?int messages:Vector<int> = Update;
 updateContactsReset#7084a7be = Update;
 updateChannelAvailableMessages#b23fc698 channel_id:long available_min_id:int = Update;
 updateDialogUnreadMark#e16459c3 flags:# unread:flags.0?true peer:DialogPeer = Update;
@@ -356,7 +359,7 @@ updateGroupCallConnection#b783982 flags:# presentation:flags.0?true params:DataJ
 updateBotCommands#4d712f2e peer:Peer bot_id:long commands:Vector<BotCommand> = Update;
 updatePendingJoinRequests#7063c3db peer:Peer requests_pending:int recent_requesters:Vector<long> = Update;
 updateBotChatInviteRequester#11dfa986 peer:Peer date:int user_id:long about:string invite:ExportedChatInvite qts:int = Update;
-updateMessageReactions#154798c3 peer:Peer msg_id:int reactions:MessageReactions = Update;
+updateMessageReactions#5e1b3cb8 flags:# peer:Peer msg_id:int top_msg_id:flags.0?int reactions:MessageReactions = Update;
 updateAttachMenuBots#17b7a20b = Update;
 updateWebViewResultSent#1592b79d query_id:long = Update;
 updateBotMenuButton#14b85813 bot_id:long button:BotMenuButton = Update;
@@ -368,6 +371,8 @@ updateRecentEmojiStatuses#30f443db = Update;
 updateRecentReactions#6f7863f4 = Update;
 updateMoveStickerSetToTop#86fccf85 flags:# masks:flags.0?true emojis:flags.1?true stickerset:long = Update;
 updateMessageExtendedMedia#5a73a98c peer:Peer msg_id:int extended_media:MessageExtendedMedia = Update;
+updateChannelPinnedTopic#192efbe3 flags:# pinned:flags.0?true channel_id:long topic_id:int = Update;
+updateChannelPinnedTopics#fe198602 flags:# channel_id:long order:flags.0?Vector<int> = Update;
 
 updates.state#a56c2a3e pts:int qts:int date:int seq:int unread_count:int = updates.State;
 
@@ -440,6 +445,7 @@ notifyPeer#9fd40bd8 peer:Peer = NotifyPeer;
 notifyUsers#b4c83b4c = NotifyPeer;
 notifyChats#c007cec3 = NotifyPeer;
 notifyBroadcasts#d612e8ef = NotifyPeer;
+notifyForumTopic#226e6308 peer:Peer top_msg_id:int = NotifyPeer;
 
 sendMessageTypingAction#16bf744e = SendMessageAction;
 sendMessageCancelAction#fd5ec8f5 = SendMessageAction;
@@ -558,6 +564,7 @@ inputStickerSetAnimatedEmojiAnimations#cde3739 = InputStickerSet;
 inputStickerSetPremiumGifts#c88b3b02 = InputStickerSet;
 inputStickerSetEmojiGenericAnimations#4c4d4ce = InputStickerSet;
 inputStickerSetEmojiDefaultStatuses#29d0f5ee = InputStickerSet;
+inputStickerSetEmojiDefaultTopicIcons#44c1f8e9 = InputStickerSet;
 
 stickerSet#2dd14edc flags:# archived:flags.1?true official:flags.2?true masks:flags.3?true animated:flags.5?true videos:flags.6?true emojis:flags.7?true installed_date:flags.0?int id:long access_hash:long title:string short_name:string thumbs:flags.4?Vector<PhotoSize> thumb_dc_id:flags.4?int thumb_version:flags.4?int thumb_document_id:flags.8?long count:int hash:int = StickerSet;
 
@@ -922,6 +929,12 @@ channelAdminLogEventActionParticipantJoinByRequest#afb6144a invite:ExportedChatI
 channelAdminLogEventActionToggleNoForwards#cb2ac766 new_value:Bool = ChannelAdminLogEventAction;
 channelAdminLogEventActionSendMessage#278f2868 message:Message = ChannelAdminLogEventAction;
 channelAdminLogEventActionChangeAvailableReactions#be4e0ef8 prev_value:ChatReactions new_value:ChatReactions = ChannelAdminLogEventAction;
+channelAdminLogEventActionChangeUsernames#f04fb3a9 prev_value:Vector<string> new_value:Vector<string> = ChannelAdminLogEventAction;
+channelAdminLogEventActionToggleForum#2cc6383 new_value:Bool = ChannelAdminLogEventAction;
+channelAdminLogEventActionCreateTopic#58707d28 topic:ForumTopic = ChannelAdminLogEventAction;
+channelAdminLogEventActionEditTopic#f06fe208 prev_topic:ForumTopic new_topic:ForumTopic = ChannelAdminLogEventAction;
+channelAdminLogEventActionDeleteTopic#ae168909 topic:ForumTopic = ChannelAdminLogEventAction;
+channelAdminLogEventActionPinTopic#5d8d353b flags:# prev_topic:flags.0?ForumTopic new_topic:flags.1?ForumTopic = ChannelAdminLogEventAction;
 
 channelAdminLogEvent#1fad68cd id:long date:int user_id:long action:ChannelAdminLogEventAction = ChannelAdminLogEvent;
 
@@ -1085,9 +1098,9 @@ chatOnlines#f041e250 onlines:int = ChatOnlines;
 
 statsURL#47a971e0 url:string = StatsURL;
 
-chatAdminRights#5fb224d5 flags:# change_info:flags.0?true post_messages:flags.1?true edit_messages:flags.2?true delete_messages:flags.3?true ban_users:flags.4?true invite_users:flags.5?true pin_messages:flags.7?true add_admins:flags.9?true anonymous:flags.10?true manage_call:flags.11?true other:flags.12?true = ChatAdminRights;
+chatAdminRights#5fb224d5 flags:# change_info:flags.0?true post_messages:flags.1?true edit_messages:flags.2?true delete_messages:flags.3?true ban_users:flags.4?true invite_users:flags.5?true pin_messages:flags.7?true add_admins:flags.9?true anonymous:flags.10?true manage_call:flags.11?true other:flags.12?true manage_topics:flags.13?true = ChatAdminRights;
 
-chatBannedRights#9f120418 flags:# view_messages:flags.0?true send_messages:flags.1?true send_media:flags.2?true send_stickers:flags.3?true send_gifs:flags.4?true send_games:flags.5?true send_inline:flags.6?true embed_links:flags.7?true send_polls:flags.8?true change_info:flags.10?true invite_users:flags.15?true pin_messages:flags.17?true until_date:int = ChatBannedRights;
+chatBannedRights#9f120418 flags:# view_messages:flags.0?true send_messages:flags.1?true send_media:flags.2?true send_stickers:flags.3?true send_gifs:flags.4?true send_games:flags.5?true send_inline:flags.6?true embed_links:flags.7?true send_polls:flags.8?true change_info:flags.10?true invite_users:flags.15?true pin_messages:flags.17?true manage_topics:flags.18?true until_date:int = ChatBannedRights;
 
 inputWallPaper#e630b979 id:long access_hash:long = InputWallPaper;
 inputWallPaperSlug#72091c80 slug:string = InputWallPaper;
@@ -1218,7 +1231,7 @@ messages.messageViews#b6c4f543 views:Vector<MessageViews> chats:Vector<Chat> use
 
 messages.discussionMessage#a6341782 flags:# messages:Vector<Message> max_id:flags.0?int read_inbox_max_id:flags.1?int read_outbox_max_id:flags.2?int unread_count:int chats:Vector<Chat> users:Vector<User> = messages.DiscussionMessage;
 
-messageReplyHeader#a6d57763 flags:# reply_to_scheduled:flags.2?true reply_to_msg_id:int reply_to_peer_id:flags.0?Peer reply_to_top_id:flags.1?int = MessageReplyHeader;
+messageReplyHeader#a6d57763 flags:# reply_to_scheduled:flags.2?true forum_topic:flags.3?true reply_to_msg_id:int reply_to_peer_id:flags.0?Peer reply_to_top_id:flags.1?int = MessageReplyHeader;
 
 messageReplies#83d60fc2 flags:# comments:flags.0?true replies:int replies_pts:int recent_repliers:flags.1?Vector<Peer> channel_id:flags.0?long max_id:flags.2?int read_max_id:flags.3?int = MessageReplies;
 
@@ -1286,9 +1299,10 @@ account.resetPasswordFailedWait#e3779861 retry_date:int = account.ResetPasswordR
 account.resetPasswordRequestedWait#e9effc7d until_date:int = account.ResetPasswordResult;
 account.resetPasswordOk#e926d63e = account.ResetPasswordResult;
 
-sponsoredMessage#3a836df8 flags:# recommended:flags.5?true random_id:bytes from_id:flags.3?Peer chat_invite:flags.4?ChatInvite chat_invite_hash:flags.4?string channel_post:flags.2?int start_param:flags.0?string message:string entities:flags.1?Vector<MessageEntity> = SponsoredMessage;
+sponsoredMessage#3a836df8 flags:# recommended:flags.5?true show_peer_photo:flags.6?true random_id:bytes from_id:flags.3?Peer chat_invite:flags.4?ChatInvite chat_invite_hash:flags.4?string channel_post:flags.2?int start_param:flags.0?string message:string entities:flags.1?Vector<MessageEntity> = SponsoredMessage;
 
-messages.sponsoredMessages#65a4c7d5 messages:Vector<SponsoredMessage> chats:Vector<Chat> users:Vector<User> = messages.SponsoredMessages;
+messages.sponsoredMessages#c9ee1d87 flags:# posts_between:flags.0?int messages:Vector<SponsoredMessage> chats:Vector<Chat> users:Vector<User> = messages.SponsoredMessages;
+messages.sponsoredMessagesEmpty#1839490f = messages.SponsoredMessages;
 
 searchResultsCalendarPeriod#c9b0539f date:int min_msg_id:int max_msg_id:int count:int = SearchResultsCalendarPeriod;
 
@@ -1420,6 +1434,13 @@ messageExtendedMedia#ee479c64 media:MessageMedia = MessageExtendedMedia;
 
 stickerKeyword#fcfeb29c document_id:long keyword:Vector<string> = StickerKeyword;
 
+username#b4073647 flags:# editable:flags.0?true active:flags.1?true username:string = Username;
+
+forumTopicDeleted#23f109b id:int = ForumTopic;
+forumTopic#71701da9 flags:# my:flags.1?true closed:flags.2?true pinned:flags.3?true short:flags.5?true id:int date:int title:string icon_color:int icon_emoji_id:flags.0?long top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int from_id:Peer notify_settings:PeerNotifySettings draft:flags.4?DraftMessage = ForumTopic;
+
+messages.forumTopics#367617d3 flags:# order_by_create_date:flags.0?true count:int topics:Vector<ForumTopic> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> pts:int = messages.ForumTopics;
+
 ---functions---
 
 invokeAfterMsg#cb9f372d {X:Type} msg_id:long query:!X = X;
@@ -1511,7 +1532,7 @@ account.createTheme#652e4400 flags:# slug:string title:string document:flags.2?I
 account.updateTheme#2bf40ccc flags:# format:string theme:InputTheme slug:flags.0?string title:flags.1?string document:flags.2?InputDocument settings:flags.3?Vector<InputThemeSettings> = Theme;
 account.saveTheme#f257106c theme:InputTheme unsave:Bool = Bool;
 account.installTheme#c727bb3b flags:# dark:flags.0?true theme:flags.1?InputTheme format:flags.2?string base_theme:flags.3?BaseTheme = Bool;
-account.getTheme#8d9d742b format:string theme:InputTheme document_id:long = Theme;
+account.getTheme#3a5869ec format:string theme:InputTheme = Theme;
 account.getThemes#7206e458 format:string hash:long = account.Themes;
 account.setContentSettings#b574b16b flags:# sensitive_enabled:flags.0?true = Bool;
 account.getContentSettings#8b9b4dae = account.ContentSettings;
@@ -1531,6 +1552,8 @@ account.updateEmojiStatus#fbd3de6b emoji_status:EmojiStatus = Bool;
 account.getDefaultEmojiStatuses#d6753386 hash:long = account.EmojiStatuses;
 account.getRecentEmojiStatuses#f578105 hash:long = account.EmojiStatuses;
 account.clearRecentEmojiStatuses#18201aae = Bool;
+account.reorderUsernames#ef500eab order:Vector<string> = Bool;
+account.toggleUsername#58d6b376 username:string active:Bool = Bool;
 
 users.getUsers#d91a548 id:Vector<InputUser> = Vector<User>;
 users.getFullUser#b60f5918 id:InputUser = users.UserFull;
@@ -1567,9 +1590,9 @@ messages.deleteHistory#b08f922a flags:# just_clear:flags.0?true revoke:flags.1?t
 messages.deleteMessages#e58e95d2 flags:# revoke:flags.0?true id:Vector<int> = messages.AffectedMessages;
 messages.receivedMessages#5a954c0 max_id:int = Vector<ReceivedNotifyMessage>;
 messages.setTyping#58943ee2 flags:# peer:InputPeer top_msg_id:flags.0?int action:SendMessageAction = Bool;
-messages.sendMessage#d9d75a4 flags:# no_webpage:flags.1?true silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true peer:InputPeer reply_to_msg_id:flags.0?int message:string random_id:long reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
-messages.sendMedia#e25ff8e0 flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true peer:InputPeer reply_to_msg_id:flags.0?int media:InputMedia message:string random_id:long reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
-messages.forwardMessages#cc30290b flags:# silent:flags.5?true background:flags.6?true with_my_score:flags.8?true drop_author:flags.11?true drop_media_captions:flags.12?true noforwards:flags.14?true from_peer:InputPeer id:Vector<int> random_id:Vector<long> to_peer:InputPeer schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
+messages.sendMessage#1cc20387 flags:# no_webpage:flags.1?true silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true peer:InputPeer reply_to_msg_id:flags.0?int top_msg_id:flags.9?int message:string random_id:long reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
+messages.sendMedia#7547c966 flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true peer:InputPeer reply_to_msg_id:flags.0?int top_msg_id:flags.9?int media:InputMedia message:string random_id:long reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
+messages.forwardMessages#c661bbc4 flags:# silent:flags.5?true background:flags.6?true with_my_score:flags.8?true drop_author:flags.11?true drop_media_captions:flags.12?true noforwards:flags.14?true from_peer:InputPeer id:Vector<int> random_id:Vector<long> to_peer:InputPeer top_msg_id:flags.9?int schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
 messages.reportSpam#cf1592db peer:InputPeer = Bool;
 messages.getPeerSettings#efd9a6a2 peer:InputPeer = messages.PeerSettings;
 messages.report#8953ab4e peer:InputPeer id:Vector<int> reason:ReportReason message:string = Bool;
@@ -1612,14 +1635,14 @@ messages.getSavedGifs#5cf09635 hash:long = messages.SavedGifs;
 messages.saveGif#327a30cb id:InputDocument unsave:Bool = Bool;
 messages.getInlineBotResults#514e999d flags:# bot:InputUser peer:InputPeer geo_point:flags.0?InputGeoPoint query:string offset:string = messages.BotResults;
 messages.setInlineBotResults#eb5ea206 flags:# gallery:flags.0?true private:flags.1?true query_id:long results:Vector<InputBotInlineResult> cache_time:int next_offset:flags.2?string switch_pm:flags.3?InlineBotSwitchPM = Bool;
-messages.sendInlineBotResult#7aa11297 flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true hide_via:flags.11?true peer:InputPeer reply_to_msg_id:flags.0?int random_id:long query_id:long id:string schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
+messages.sendInlineBotResult#d3fbdccb flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true hide_via:flags.11?true peer:InputPeer reply_to_msg_id:flags.0?int top_msg_id:flags.9?int random_id:long query_id:long id:string schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
 messages.getMessageEditData#fda68d36 peer:InputPeer id:int = messages.MessageEditData;
 messages.editMessage#48f71778 flags:# no_webpage:flags.1?true peer:InputPeer id:int message:flags.11?string media:flags.14?InputMedia reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.15?int = Updates;
 messages.editInlineBotMessage#83557dba flags:# no_webpage:flags.1?true id:InputBotInlineMessageID message:flags.11?string media:flags.14?InputMedia reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> = Bool;
 messages.getBotCallbackAnswer#9342ca07 flags:# game:flags.1?true peer:InputPeer msg_id:int data:flags.0?bytes password:flags.2?InputCheckPasswordSRP = messages.BotCallbackAnswer;
 messages.setBotCallbackAnswer#d58f130a flags:# alert:flags.1?true query_id:long message:flags.0?string url:flags.2?string cache_time:int = Bool;
 messages.getPeerDialogs#e470bcfd peers:Vector<InputDialogPeer> = messages.PeerDialogs;
-messages.saveDraft#bc39e14b flags:# no_webpage:flags.1?true reply_to_msg_id:flags.0?int peer:InputPeer message:string entities:flags.3?Vector<MessageEntity> = Bool;
+messages.saveDraft#b4331e3f flags:# no_webpage:flags.1?true reply_to_msg_id:flags.0?int top_msg_id:flags.2?int peer:InputPeer message:string entities:flags.3?Vector<MessageEntity> = Bool;
 messages.getAllDrafts#6a3f8d65 = Updates;
 messages.getFeaturedStickers#64780b14 hash:long = messages.FeaturedStickers;
 messages.readFeaturedStickers#5b118126 id:Vector<long> = Bool;
@@ -1645,10 +1668,10 @@ messages.uploadMedia#519bc2b1 peer:InputPeer media:InputMedia = MessageMedia;
 messages.sendScreenshotNotification#c97df020 peer:InputPeer reply_to_msg_id:int random_id:long = Updates;
 messages.getFavedStickers#4f1aaa9 hash:long = messages.FavedStickers;
 messages.faveSticker#b9ffc55b id:InputDocument unfave:Bool = Bool;
-messages.getUnreadMentions#46578472 peer:InputPeer offset_id:int add_offset:int limit:int max_id:int min_id:int = messages.Messages;
-messages.readMentions#f0189d3 peer:InputPeer = messages.AffectedHistory;
+messages.getUnreadMentions#f107e790 flags:# peer:InputPeer top_msg_id:flags.0?int offset_id:int add_offset:int limit:int max_id:int min_id:int = messages.Messages;
+messages.readMentions#36e5bf4d flags:# peer:InputPeer top_msg_id:flags.0?int = messages.AffectedHistory;
 messages.getRecentLocations#702a40e0 peer:InputPeer limit:int hash:long = messages.Messages;
-messages.sendMultiMedia#f803138f flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true peer:InputPeer reply_to_msg_id:flags.0?int multi_media:Vector<InputSingleMedia> schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
+messages.sendMultiMedia#b6f11a1c flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true peer:InputPeer reply_to_msg_id:flags.0?int top_msg_id:flags.9?int multi_media:Vector<InputSingleMedia> schedule_date:flags.10?int send_as:flags.13?InputPeer = Updates;
 messages.uploadEncryptedFile#5057c497 peer:InputEncryptedChat file:InputEncryptedFile = EncryptedFile;
 messages.searchStickerSets#35705b8a flags:# exclude_featured:flags.0?true q:string hash:long = messages.FoundStickerSets;
 messages.getSplitRanges#1cff7e08 = Vector<MessageRange>;
@@ -1665,7 +1688,7 @@ messages.getEmojiKeywords#35a0e062 lang_code:string = EmojiKeywordsDifference;
 messages.getEmojiKeywordsDifference#1508b6af lang_code:string from_version:int = EmojiKeywordsDifference;
 messages.getEmojiKeywordsLanguages#4e9963b2 lang_codes:Vector<string> = Vector<EmojiLanguage>;
 messages.getEmojiURL#d5b10c26 lang_code:string = EmojiURL;
-messages.getSearchCounters#732eef00 peer:InputPeer filters:Vector<MessagesFilter> = Vector<messages.SearchCounter>;
+messages.getSearchCounters#ae7cc1 flags:# peer:InputPeer top_msg_id:flags.0?int filters:Vector<MessagesFilter> = Vector<messages.SearchCounter>;
 messages.requestUrlAuth#198fb446 flags:# peer:flags.1?InputPeer msg_id:flags.1?int button_id:flags.1?int url:flags.2?string = UrlAuthResult;
 messages.acceptUrlAuth#b12c7125 flags:# write_allowed:flags.0?true peer:flags.1?InputPeer msg_id:flags.1?int button_id:flags.1?int url:flags.2?string = UrlAuthResult;
 messages.hidePeerSettingsBar#4facb138 peer:InputPeer = Bool;
@@ -1683,7 +1706,7 @@ messages.getOldFeaturedStickers#7ed094a1 offset:int limit:int hash:long = messag
 messages.getReplies#22ddd30c peer:InputPeer msg_id:int offset_id:int offset_date:int add_offset:int limit:int max_id:int min_id:int hash:long = messages.Messages;
 messages.getDiscussionMessage#446972fd peer:InputPeer msg_id:int = messages.DiscussionMessage;
 messages.readDiscussion#f731a9f4 peer:InputPeer msg_id:int read_max_id:int = Bool;
-messages.unpinAllMessages#f025bc8b peer:InputPeer = messages.AffectedHistory;
+messages.unpinAllMessages#ee22b9a8 flags:# peer:InputPeer top_msg_id:flags.0?int = messages.AffectedHistory;
 messages.deleteChat#5bd0ee50 chat_id:long = Bool;
 messages.deletePhoneCallHistory#f9cbe409 flags:# revoke:flags.0?true = messages.AffectedFoundMessages;
 messages.checkHistoryImport#43fe19f3 import_head:string = messages.HistoryImportParsed;
@@ -1714,14 +1737,14 @@ messages.setChatAvailableReactions#feb16771 peer:InputPeer available_reactions:C
 messages.getAvailableReactions#18dea0ac hash:int = messages.AvailableReactions;
 messages.setDefaultReaction#4f47a016 reaction:Reaction = Bool;
 messages.translateText#24ce6dee flags:# peer:flags.0?InputPeer msg_id:flags.0?int text:flags.1?string from_lang:flags.2?string to_lang:string = messages.TranslatedText;
-messages.getUnreadReactions#e85bae1a peer:InputPeer offset_id:int add_offset:int limit:int max_id:int min_id:int = messages.Messages;
-messages.readReactions#82e251d7 peer:InputPeer = messages.AffectedHistory;
+messages.getUnreadReactions#3223495b flags:# peer:InputPeer top_msg_id:flags.0?int offset_id:int add_offset:int limit:int max_id:int min_id:int = messages.Messages;
+messages.readReactions#54aa7f8e flags:# peer:InputPeer top_msg_id:flags.0?int = messages.AffectedHistory;
 messages.searchSentMedia#107e31a0 q:string filter:MessagesFilter limit:int = messages.Messages;
 messages.getAttachMenuBots#16fcc2cb hash:long = AttachMenuBots;
 messages.getAttachMenuBot#77216192 bot:InputUser = AttachMenuBotsBot;
 messages.toggleBotInAttachMenu#1aee33af bot:InputUser enabled:Bool = Bool;
-messages.requestWebView#fc87a53c flags:# from_bot_menu:flags.4?true silent:flags.5?true peer:InputPeer bot:InputUser url:flags.1?string start_param:flags.3?string theme_params:flags.2?DataJSON platform:string reply_to_msg_id:flags.0?int send_as:flags.13?InputPeer = WebViewResult;
-messages.prolongWebView#ea5fbcce flags:# silent:flags.5?true peer:InputPeer bot:InputUser query_id:long reply_to_msg_id:flags.0?int send_as:flags.13?InputPeer = Bool;
+messages.requestWebView#178b480b flags:# from_bot_menu:flags.4?true silent:flags.5?true peer:InputPeer bot:InputUser url:flags.1?string start_param:flags.3?string theme_params:flags.2?DataJSON platform:string reply_to_msg_id:flags.0?int top_msg_id:flags.9?int send_as:flags.13?InputPeer = WebViewResult;
+messages.prolongWebView#7ff34309 flags:# silent:flags.5?true peer:InputPeer bot:InputUser query_id:long reply_to_msg_id:flags.0?int top_msg_id:flags.9?int send_as:flags.13?InputPeer = Bool;
 messages.requestSimpleWebView#299bec8e flags:# bot:InputUser url:string theme_params:flags.0?DataJSON platform:string = SimpleWebViewResult;
 messages.sendWebViewResultMessage#a4314f5 bot_query_id:string result:InputBotInlineResult = WebViewMessageSent;
 messages.sendWebViewData#dc0242c8 bot:InputUser random_id:long button_text:string data:string = Updates;
@@ -1819,6 +1842,17 @@ channels.getSendAs#dc770ee peer:InputPeer = channels.SendAsPeers;
 channels.deleteParticipantHistory#367544db channel:InputChannel participant:InputPeer = messages.AffectedHistory;
 channels.toggleJoinToSend#e4cb9580 channel:InputChannel enabled:Bool = Updates;
 channels.toggleJoinRequest#4c2985b6 channel:InputChannel enabled:Bool = Updates;
+channels.reorderUsernames#b45ced1d channel:InputChannel order:Vector<string> = Bool;
+channels.toggleUsername#50f24105 channel:InputChannel username:string active:Bool = Bool;
+channels.deactivateAllUsernames#a245dd3 channel:InputChannel = Bool;
+channels.toggleForum#a4298b29 channel:InputChannel enabled:Bool = Updates;
+channels.createForumTopic#f40c0224 flags:# channel:InputChannel title:string icon_color:flags.0?int icon_emoji_id:flags.3?long random_id:long send_as:flags.2?InputPeer = Updates;
+channels.getForumTopics#de560d1 flags:# channel:InputChannel q:flags.0?string offset_date:int offset_id:int offset_topic:int limit:int = messages.ForumTopics;
+channels.getForumTopicsByID#b0831eb9 channel:InputChannel topics:Vector<int> = messages.ForumTopics;
+channels.editForumTopic#6c883e2d flags:# channel:InputChannel topic_id:int title:flags.0?string icon_emoji_id:flags.1?long closed:flags.2?Bool = Updates;
+channels.updatePinnedForumTopic#6c2d9026 channel:InputChannel topic_id:int pinned:Bool = Updates;
+channels.deleteTopicHistory#34435f2d channel:InputChannel top_msg_id:int = messages.AffectedHistory;
+channels.reorderPinnedForumTopics#2950a18f flags:# force:flags.0?true channel:InputChannel order:Vector<int> = Updates;
 
 bots.sendCustomRequest#aa2769ed custom_method:string params:DataJSON = DataJSON;
 bots.answerWebhookJSONQuery#e6213f4d query_id:long data:DataJSON = Bool;
@@ -1897,4 +1931,4 @@ stats.getMegagroupStats#dcdf8607 flags:# dark:flags.0?true channel:InputChannel
 stats.getMessagePublicForwards#5630281b channel:InputChannel msg_id:int offset_rate:int offset_peer:InputPeer offset_id:int limit:int = messages.Messages;
 stats.getMessageStats#b6e0a3f5 flags:# dark:flags.0?true channel:InputChannel msg_id:int = stats.MessageStats;
 
-// LAYER 147
+// LAYER 149