Localization: Add many translations (#1103)

src/api/gramjs/methods/settings.ts

@@ -18,6 +18,7 @@ import { buildCollectionByKey } from '../../../util/iteratees';
 import localDb from '../localDb';
 
 const MAX_INT_32 = 2 ** 31 - 1;
+const BETA_LANG_CODES = ['ar', 'fa'];
 
 export function updateProfile({
   firstName,
@@ -250,7 +251,10 @@ export async function fetchLanguages(): Promise<ApiLanguage[] | undefined> {
 
 export async function fetchLangPack({ sourceLangPacks, langCode }: { sourceLangPacks: string[]; langCode: string }) {
   const results = await Promise.all(sourceLangPacks.map((langPack) => {
-    return invokeRequest(new GramJs.langpack.GetLangPack({ langPack, langCode }));
+    return invokeRequest(new GramJs.langpack.GetLangPack({
+      langPack,
+      langCode: BETA_LANG_CODES.includes(langCode) ? `${langCode}-raw` : langCode,
+    }));
   }));
 
   const collections = results

src/components/common/DeleteChatModal.tsx

@@ -16,6 +16,7 @@ import {
 } from '../../modules/helpers';
 import { pick } from '../../util/iteratees';
 import useLang from '../../hooks/useLang';
+import renderText from './helpers/renderText';
 
 import Avatar from './Avatar';
 import Modal from '../ui/Modal';
@@ -96,55 +97,52 @@ const DeleteChatModal: FC<OwnProps & StateProps & DispatchProps> = ({
           chat={chat}
           isSavedMessages={isChatWithSelf}
         />
-        <h3 className="modal-title">{renderTitle()}</h3>
+        <h3 className="modal-title">{lang(renderTitle())}</h3>
       </div>
     );
   }
 
   function renderTitle() {
     if (isChannel && !chat.isCreator) {
-      return 'Leave Channel?';
+      return 'LeaveChannel';
     }
 
     if (isChannel && chat.isCreator) {
-      return 'Delete and Leave Channel?';
+      return 'ChannelDelete';
     }
 
     if (isBasicGroup || isSuperGroup) {
-      return 'Leave Group?';
+      return 'Group.LeaveGroup';
     }
 
-    return 'Delete Chat?';
+    return 'DeleteChatUser';
   }
 
   function renderMessage() {
-    if (isChannel && !chat.isCreator) {
-      return <p>Are you sure you want to leave channel <strong>{chatTitle}</strong>?</p>;
-    }
     if (isChannel && chat.isCreator) {
-      return <p>Are you sure you want to delete and leave channel <strong>{chatTitle}</strong>?</p>;
+      return <p>{renderText(lang('ChatList.DeleteAndLeaveGroupConfirmation', chatTitle), ['simple_markdown'])}</p>;
     }
 
-    if (isBasicGroup || isSuperGroup) {
-      return <p>Are you sure you want to leave group <strong>{chatTitle}</strong>?</p>;
+    if ((isChannel && !chat.isCreator) || isBasicGroup || isSuperGroup) {
+      return <p>{renderText(lang('ChannelLeaveAlertWithName', chatTitle), ['simple_markdown'])}</p>;
     }
 
-    return <p>Are you sure you want to delete chat with <strong>{contactName}</strong>?</p>;
+    return <p>{renderText(lang('ChatList.DeleteChatConfirmation', contactName), ['simple_markdown'])}</p>;
   }
 
   function renderActionText() {
     if (isChannel && !chat.isCreator) {
-      return 'Leave Channel';
+      return 'LeaveChannel';
     }
     if (isChannel && chat.isCreator) {
-      return 'Delete and Leave Channel';
+      return 'Chat.Input.Delete';
     }
 
     if (isBasicGroup || isSuperGroup) {
-      return 'Leave Group';
+      return 'Group.LeaveGroup';
     }
 
-    return `Delete${canDeleteForAll ? ' just for me' : ''}`;
+    return canDeleteForAll ? 'ChatList.DeleteForCurrentUser' : 'Delete';
   }
 
   return (
@@ -157,11 +155,11 @@ const DeleteChatModal: FC<OwnProps & StateProps & DispatchProps> = ({
       {renderMessage()}
       {canDeleteForAll && (
         <Button color="danger" className="confirm-dialog-button" isText onClick={handleDeleteMessageForAll}>
-          Delete for {contactName ? `me and ${contactName}` : 'Everyone'}
+          {contactName ? lang('ChatList.DeleteForEveryone', contactName) : lang('DeleteForAll')}
         </Button>
       )}
       <Button color="danger" className="confirm-dialog-button" isText onClick={handleDeleteChat}>
-        {renderActionText()}
+        {lang(renderActionText())}
       </Button>
       <Button className="confirm-dialog-button" isText onClick={onClose}>{lang('Cancel')}</Button>
     </Modal>

src/components/common/DeleteMessageModal.tsx

@@ -91,19 +91,19 @@ const DeleteMessageModal: FC<OwnProps & StateProps & DispatchProps> = ({
     >
       <p>{lang('AreYouSureDeleteSingleMessage')}</p>
       {willDeleteForCurrentUserOnly && (
-        <p>This will delete it just for you, not for other participants in the chat.</p>
+        <p>{lang('lng_delete_for_me_chat_hint')}</p>
       )}
       {willDeleteForAll && (
-        <p>This will delete it for everyone in this chat.</p>
+        <p>{lang('lng_delete_for_everyone_hint')}</p>
       )}
       {canDeleteForAll && (
         <Button color="danger" className="confirm-dialog-button" isText onClick={handleDeleteMessageForAll}>
-          Delete for {contactName ? 'me and ' : 'Everyone'}
-          {contactName && renderText(contactName)}
+          {contactName && lang('Conversation.DeleteMessagesFor', renderText(contactName))}
+          {!contactName && lang('Conversation.DeleteMessagesForEveryone')}
         </Button>
       )}
       <Button color="danger" className="confirm-dialog-button" isText onClick={handleDeleteMessageForSelf}>
-        Delete{canDeleteForAll ? ' just for me' : ''}
+        {lang(canDeleteForAll ? 'ChatList.DeleteForCurrentUser' : 'Delete')}
       </Button>
       <Button className="confirm-dialog-button" isText onClick={onClose}>{lang('Cancel')}</Button>
     </Modal>

src/components/common/EmbeddedMessage.tsx

@@ -49,7 +49,7 @@ const EmbeddedMessage: FC<OwnProps> = ({
   const pictogramId = message && `sticker-reply-thumb${message.id}`;
   const mediaThumbnail = useWebpThumbnail(message);
 
-  useLang();
+  const lang = useLang();
 
   const senderTitle = sender && getSenderTitle(sender);
 
@@ -68,7 +68,7 @@ const EmbeddedMessage: FC<OwnProps> = ({
           ) : isActionMessage(message) ? (
             <ActionMessage message={message} isEmbedded />
           ) : (
-            renderText(getMessageSummaryText(message, Boolean(mediaThumbnail)))
+            renderText(getMessageSummaryText(lang, message, Boolean(mediaThumbnail)))
           )}
         </p>
       </div>

src/components/common/NothingFound.scss

@@ -4,7 +4,19 @@
   justify-content: center;
   color: var(--color-text-meta);
 
+  &.with-description {
+    flex-direction: column;
+  }
+
   .AnimatedSticker {
     margin: 0 auto;
   }
+
+  .description {
+    color: var(--color-text-secondary);
+    font-size: .875rem;
+    text-align: center;
+    margin: 1rem 0 0;
+    unicode-bidi: plaintext;
+  }
 }

src/components/common/NothingFound.tsx

@@ -2,21 +2,26 @@ import React, { FC, memo } from '../../lib/teact/teact';
 
 import buildClassName from '../../util/buildClassName';
 import useShowTransition from '../../hooks/useShowTransition';
+import renderText from './helpers/renderText';
+import useLang from '../../hooks/useLang';
 
 import './NothingFound.scss';
 
 interface OwnProps {
   text?: string;
+  description?: string;
 }
 
 const DEFAULT_TEXT = 'Nothing found.';
 
-const NothingFound: FC<OwnProps> = ({ text = DEFAULT_TEXT }) => {
+const NothingFound: FC<OwnProps> = ({ text = DEFAULT_TEXT, description }) => {
+  const lang = useLang();
   const { transitionClassNames } = useShowTransition(true);
 
   return (
-    <div className={buildClassName('NothingFound', transitionClassNames)}>
+    <div className={buildClassName('NothingFound', transitionClassNames, description && 'with-description')}>
       {text}
+      {description && <p className="description">{renderText(lang(description), ['br'])}</p>}
     </div>
   );
 };

src/components/common/StickerSetModal.tsx

@@ -10,6 +10,7 @@ import { STICKER_SIZE_MODAL } from '../../config';
 import { pick } from '../../util/iteratees';
 import { selectStickerSet } from '../../modules/selectors';
 import { useIntersectionObserver } from '../../hooks/useIntersectionObserver';
+import useLang from '../../hooks/useLang';
 
 import Modal from '../ui/Modal';
 import Button from '../ui/Button';
@@ -43,6 +44,7 @@ const StickerSetModal: FC<OwnProps & StateProps & DispatchProps> = ({
 }) => {
   // eslint-disable-next-line no-null/no-null
   const containerRef = useRef<HTMLDivElement>(null);
+  const lang = useLang();
 
   const {
     observe: observeIntersection,
@@ -98,7 +100,11 @@ const StickerSetModal: FC<OwnProps & StateProps & DispatchProps> = ({
               color={stickerSet.installedDate ? 'danger' : 'primary'}
               onClick={handleButtonClick}
             >
-              {`${stickerSet.installedDate ? 'Remove' : 'Add'} ${stickerSet.count} stickers`}
+              {lang(
+                stickerSet.installedDate ? 'StickerPack.RemoveStickerCount' : 'StickerPack.AddStickerCount',
+                stickerSet.count,
+                'i',
+              )}
             </Button>
           </div>
         </>

src/components/common/WebLink.tsx

@@ -7,6 +7,7 @@ import buildClassName from '../../util/buildClassName';
 import trimText from '../../util/trimText';
 import renderText from './helpers/renderText';
 import { formatPastTimeShort } from '../../util/dateFormat';
+import useLang from '../../hooks/useLang';
 
 import Media from './Media';
 import Link from '../ui/Link';
@@ -23,13 +24,15 @@ type OwnProps = {
 };
 
 const WebLink: FC<OwnProps> = ({ message, senderTitle, onMessageClick }) => {
+  const lang = useLang();
+
   let linkData: ApiWebPage | undefined = getMessageWebPage(message);
 
   if (!linkData) {
     const link = getFirstLinkInMessage(message);
     if (link) {
       const { url, domain } = link;
-      const messageText = getMessageSummaryText(message);
+      const messageText = getMessageSummaryText(lang, message);
 
       linkData = {
         siteName: domain.replace(/^www./, ''),

src/components/common/helpers/renderActionMessageText.tsx

@@ -1,6 +1,7 @@
 import React from '../../../lib/teact/teact';
 
 import { ApiChat, ApiMessage, ApiUser } from '../../../api/types';
+import { LangFn } from '../../../hooks/useLang';
 import {
   getChatTitle,
   getMessageContent,
@@ -25,6 +26,7 @@ interface ActionMessageTextOptions {
 const NBSP = '\u00A0';
 
 export function renderActionMessageText(
+  lang: LangFn,
   message: ApiMessage,
   actionOrigin?: ApiUser | ApiChat,
   targetUser?: ApiUser,
@@ -66,7 +68,7 @@ export function renderActionMessageText(
     unprocessed,
     '%message%',
     targetMessage
-      ? renderMessageContent(targetMessage, textOptions)
+      ? renderMessageContent(lang, targetMessage, textOptions)
       : 'a message',
   );
   unprocessed = processed.pop() as string;
@@ -104,8 +106,8 @@ function renderProductContent(message: ApiMessage) {
     : 'a product';
 }
 
-function renderMessageContent(message: ApiMessage, options: ActionMessageTextOptions = {}) {
-  const text = getMessageSummaryText(message);
+function renderMessageContent(lang: LangFn, message: ApiMessage, options: ActionMessageTextOptions = {}) {
+  const text = getMessageSummaryText(lang, message);
   const {
     photo, video, document, sticker,
   } = getMessageContent(message);

src/components/left/NewChatButton.tsx

@@ -80,7 +80,7 @@ const NewChatButton: FC<OwnProps> = ({
         color="primary"
         className={isMenuOpen ? 'active' : ''}
         onClick={toggleIsMenuOpen}
-        ariaLabel={isMenuOpen ? 'Close' : 'Create new chat'}
+        ariaLabel={lang(isMenuOpen ? 'Close' : 'NewMessageTitle')}
         tabIndex={-1}
       >
         <i className="icon-new-chat-filled" />
@@ -95,7 +95,7 @@ const NewChatButton: FC<OwnProps> = ({
       >
         <MenuItem icon="channel" onClick={onNewChannel}>{lang('NewChannel')}</MenuItem>
         <MenuItem icon="group" onClick={onNewGroup}>{lang('NewGroup')}</MenuItem>
-        <MenuItem icon="user" onClick={onNewPrivateChat}>New Private Chat</MenuItem>
+        <MenuItem icon="user" onClick={onNewPrivateChat}>{lang('NewMessageTitle')}</MenuItem>
       </Menu>
     </div>
   );

src/components/left/main/Chat.tsx

@@ -3,7 +3,7 @@ import React, {
 } from '../../../lib/teact/teact';
 import { withGlobal } from '../../../lib/teact/teactn';
 
-import useLang from '../../../hooks/useLang';
+import useLang, { LangFn } from '../../../hooks/useLang';
 
 import { GlobalActions, MessageListType } from '../../../global/types';
 import {
@@ -205,6 +205,7 @@ const Chat: FC<OwnProps & StateProps & DispatchProps> = ({
       return (
         <p className="last-message">
           {renderText(renderActionMessageText(
+            lang,
             lastMessage,
             actionOrigin,
             actionTargetUser,
@@ -223,7 +224,7 @@ const Chat: FC<OwnProps & StateProps & DispatchProps> = ({
         {senderName && (
           <span className="sender-name">{renderText(senderName)}</span>
         )}
-        {renderMessageSummary(lastMessage!, mediaBlobUrl || mediaThumbnail)}
+        {renderMessageSummary(lang, lastMessage!, mediaBlobUrl || mediaThumbnail)}
       </p>
     );
   }
@@ -273,16 +274,16 @@ const Chat: FC<OwnProps & StateProps & DispatchProps> = ({
   );
 };
 
-function renderMessageSummary(message: ApiMessage, blobUrl?: string) {
+function renderMessageSummary(lang: LangFn, message: ApiMessage, blobUrl?: string) {
   if (!blobUrl) {
-    return renderText(getMessageSummaryText(message));
+    return renderText(getMessageSummaryText(lang, message));
   }
 
   return (
     <span className="media-preview">
       <img src={blobUrl} alt="" />
       {getMessageVideo(message) && <i className="icon-play" />}
-      {renderText(getMessageSummaryText(message, true))}
+      {renderText(getMessageSummaryText(lang, message, true))}
     </span>
   );
 }

src/components/left/main/ChatFolders.tsx

@@ -43,6 +43,8 @@ const ChatFolders: FC<StateProps & DispatchProps> = ({
   // eslint-disable-next-line no-null/no-null
   const transitionRef = useRef<HTMLDivElement>(null);
 
+  const lang = useLang();
+
   const [activeTab, setActiveTab] = useState(0);
 
   useEffect(() => {
@@ -84,13 +86,13 @@ const ChatFolders: FC<StateProps & DispatchProps> = ({
     }
 
     return [
-      { title: 'All' },
+      { title: lang('FilterAllChats') },
       ...displayedFolders.map((folder) => ({
         title: folder.title,
         ...(folderCountersById && folderCountersById[folder.id]),
       })),
     ];
-  }, [displayedFolders, folderCountersById]);
+  }, [displayedFolders, folderCountersById, lang]);
 
   const handleSwitchTab = useCallback((index: number) => {
     setActiveTab(index);
@@ -135,8 +137,6 @@ const ChatFolders: FC<StateProps & DispatchProps> = ({
     shouldRender: shouldRenderPlaceholder, transitionClassNames,
   } = useShowTransition(!orderedFolderIds, undefined, true);
 
-  const lang = useLang();
-
   function renderCurrentTab() {
     const activeFolder = Object.values(chatFoldersById)
       .find(({ title }) => title === folderTabs![activeTab].title);

src/components/left/main/LeftMainHeader.tsx

@@ -76,6 +76,7 @@ const LeftMainHeader: FC<OwnProps & StateProps & DispatchProps> = ({
   setGlobalSearchDate,
   setSettingOption,
 }) => {
+  const lang = useLang();
   const hasMenu = content === LeftColumnContent.ChatList;
   const clearedDateSearchParam = { date: undefined };
   const clearedChatSearchParam = { id: undefined };
@@ -107,12 +108,12 @@ const LeftMainHeader: FC<OwnProps & StateProps & DispatchProps> = ({
         color="translucent"
         className={isOpen ? 'active' : ''}
         onClick={hasMenu ? onTrigger : () => onReset()}
-        ariaLabel={hasMenu ? 'Open menu' : 'Return to chat list'}
+        ariaLabel={hasMenu ? lang('AccDescrOpenMenu2') : 'Return to chat list'}
       >
         <div className={buildClassName('animated-menu-icon', !hasMenu && 'state-back')} />
       </Button>
     );
-  }, [hasMenu, onReset]);
+  }, [hasMenu, lang, onReset]);
 
   const handleSearchFocus = useCallback(() => {
     if (!searchQuery) {
@@ -148,8 +149,6 @@ const LeftMainHeader: FC<OwnProps & StateProps & DispatchProps> = ({
     setSettingOption({ animationLevel: newLevel });
   }, [animationLevel, setSettingOption]);
 
-  const lang = useLang();
-
   const isSearchFocused = (
     Boolean(globalSearchChatId)
     || content === LeftColumnContent.GlobalSearch
@@ -198,10 +197,10 @@ const LeftMainHeader: FC<OwnProps & StateProps & DispatchProps> = ({
             icon="darkmode"
             onClick={handleDarkModeToggle}
           >
-            <span className="menu-item-name">Dark Mode</span>
+            <span className="menu-item-name">{lang('lng_menu_night_mode')}</span>
             <Switcher
               id="darkmode"
-              label="Toggle Dark Mode"
+              label={lang(theme === 'dark' ? 'lng_settings_disable_night_theme' : 'lng_settings_enable_night_theme')}
               checked={theme === 'dark'}
               noAnimation
             />
@@ -221,7 +220,7 @@ const LeftMainHeader: FC<OwnProps & StateProps & DispatchProps> = ({
             icon="help"
             onClick={openTipsChat}
           >
-            Telegram Features
+            {lang('TelegramFeatures')}
           </MenuItem>
           <MenuItem
             icon="bug"

src/components/left/search/AudioResults.tsx

@@ -14,6 +14,7 @@ import { formatMonthAndYear, toYearMonth } from '../../../util/dateFormat';
 import { getSenderName } from './helpers/getSenderName';
 import { throttle } from '../../../util/schedulers';
 import useAsyncRendering from '../../right/hooks/useAsyncRendering';
+import useLang from '../../../hooks/useLang';
 
 import InfiniteScroll from '../../ui/InfiniteScroll';
 import Audio from '../../common/Audio';
@@ -43,6 +44,7 @@ const AudioResults: FC<OwnProps & StateProps & DispatchProps> = ({
   focusMessage,
   openAudioPlayer,
 }) => {
+  const lang = useLang();
   const currentType = isVoice ? 'voice' : 'audio';
   const handleLoadMore = useCallback(({ direction }: { direction: LoadMoreDirection }) => {
     if (lastSyncTime && direction === LoadMoreDirection.Backwards) {
@@ -115,7 +117,12 @@ const AudioResults: FC<OwnProps & StateProps & DispatchProps> = ({
         noFastList
       >
         {!canRenderContents && <Loading />}
-        {canRenderContents && (!foundIds || foundIds.length === 0) && <NothingFound />}
+        {canRenderContents && (!foundIds || foundIds.length === 0) && (
+          <NothingFound
+            text={lang('ChatList.Search.NoResults')}
+            description={lang('ChatList.Search.NoResultsDescription')}
+          />
+        )}
         {canRenderContents && foundIds && foundIds.length > 0 && renderList()}
       </InfiniteScroll>
     </div>

src/components/left/search/ChatMessage.tsx

@@ -22,7 +22,7 @@ import renderText from '../../common/helpers/renderText';
 import { pick } from '../../../util/iteratees';
 import useMedia from '../../../hooks/useMedia';
 import { formatPastTimeShort } from '../../../util/dateFormat';
-import useLang from '../../../hooks/useLang';
+import useLang, { LangFn } from '../../../hooks/useLang';
 
 import Avatar from '../../common/Avatar';
 import VerifiedIcon from '../../common/VerifiedIcon';
@@ -62,7 +62,7 @@ const ChatMessage: FC<OwnProps & StateProps & DispatchProps> = ({
     focusMessage({ chatId, messageId: message.id });
   }, [chatId, focusMessage, message.id]);
 
-  useLang();
+  const lang = useLang();
 
   if (!chat) {
     return undefined;
@@ -96,7 +96,7 @@ const ChatMessage: FC<OwnProps & StateProps & DispatchProps> = ({
         </div>
         <div className="subtitle">
           <div className="message">
-            {renderMessageSummary(message, mediaBlobUrl || mediaThumbnail, searchQuery)}
+            {renderMessageSummary(lang, message, mediaBlobUrl || mediaThumbnail, searchQuery)}
           </div>
         </div>
       </div>
@@ -104,16 +104,16 @@ const ChatMessage: FC<OwnProps & StateProps & DispatchProps> = ({
   );
 };
 
-function renderMessageSummary(message: ApiMessage, blobUrl?: string, searchQuery?: string) {
+function renderMessageSummary(lang: LangFn, message: ApiMessage, blobUrl?: string, searchQuery?: string) {
   if (!blobUrl) {
-    return renderText(getMessageSummaryText(message));
+    return renderText(getMessageSummaryText(lang, message));
   }
 
   return (
     <span className="media-preview">
       <img src={blobUrl} alt="" />
       {getMessageVideo(message) && <i className="icon-play" />}
-      {renderText(getMessageSummaryText(message, true), ['emoji', 'highlight'], { highlight: searchQuery })}
+      {renderText(getMessageSummaryText(lang, message, true), ['emoji', 'highlight'], { highlight: searchQuery })}
     </span>
   );
 }

src/components/left/search/ChatMessageResults.tsx

@@ -11,6 +11,7 @@ import { pick } from '../../../util/iteratees';
 import { getMessageSummaryText } from '../../../modules/helpers';
 import { MEMO_EMPTY_ARRAY } from '../../../util/memo';
 import { throttle } from '../../../util/schedulers';
+import useLang from '../../../hooks/useLang';
 
 import InfiniteScroll from '../../ui/InfiniteScroll';
 import ChatMessage from './ChatMessage';
@@ -49,6 +50,7 @@ const ChatMessageResults: FC<OwnProps & StateProps & DispatchProps> = ({
   searchMessagesGlobal,
   onSearchDateSelect,
 }) => {
+  const lang = useLang();
   const handleLoadMore = useCallback(({ direction }: { direction: LoadMoreDirection }) => {
     if (lastSyncTime && direction === LoadMoreDirection.Backwards) {
       runThrottled(() => {
@@ -79,7 +81,7 @@ const ChatMessageResults: FC<OwnProps & StateProps & DispatchProps> = ({
   }, [foundIds, globalMessagesByChatId]);
 
   function renderFoundMessage(message: ApiMessage) {
-    const text = getMessageSummaryText(message);
+    const text = getMessageSummaryText(lang, message);
     const chat = chatsById[message.chatId];
 
     if (!text || !chat) {
@@ -113,7 +115,12 @@ const ChatMessageResults: FC<OwnProps & StateProps & DispatchProps> = ({
             />
           </div>
         )}
-        {nothingFound && <NothingFound />}
+        {nothingFound && (
+          <NothingFound
+            text={lang('ChatList.Search.NoResults')}
+            description={lang('ChatList.Search.NoResultsDescription')}
+          />
+        )}
         {!!foundMessages.length && foundMessages.map(renderFoundMessage)}
       </InfiniteScroll>
     </div>

src/components/left/search/ChatResults.tsx

@@ -159,7 +159,7 @@ const ChatResults: FC<OwnProps & StateProps & DispatchProps> = ({
   const lang = useLang();
 
   function renderFoundMessage(message: ApiMessage) {
-    const text = getMessageSummaryText(message);
+    const text = getMessageSummaryText(lang, message);
     const chat = chatsById[message.chatId];
 
     if (!text || !chat) {
@@ -199,7 +199,12 @@ const ChatResults: FC<OwnProps & StateProps & DispatchProps> = ({
           />
         </div>
       )}
-      {nothingFound && <NothingFound />}
+      {nothingFound && (
+        <NothingFound
+          text={lang('ChatList.Search.NoResults')}
+          description={lang('ChatList.Search.NoResultsDescription')}
+        />
+      )}
       {!!localResults.length && (
         <div className="chat-selection no-selection no-scrollbar">
           {localResults.map((id) => (
@@ -215,9 +220,11 @@ const ChatResults: FC<OwnProps & StateProps & DispatchProps> = ({
         <div className="search-section">
           <h3 className="section-heading">
             {localResults.length > LESS_LIST_ITEMS_AMOUNT && (
-              <Link onClick={handleClickShowMoreLocal}>{shouldShowMoreLocal ? 'Show less' : 'Show more'}</Link>
+              <Link onClick={handleClickShowMoreLocal}>
+                {lang(shouldShowMoreLocal ? 'ChatList.Search.ShowLess' : 'ChatList.Search.ShowMore')}
+              </Link>
             )}
-            Contacts and Chats
+            {lang('DialogList.SearchSectionDialogs')}
           </h3>
           {localResults.map((id, index) => {
             if (!shouldShowMoreLocal && index >= LESS_LIST_ITEMS_AMOUNT) {
@@ -237,9 +244,11 @@ const ChatResults: FC<OwnProps & StateProps & DispatchProps> = ({
         <div className="search-section">
           <h3 className="section-heading">
             {globalResults.length > LESS_LIST_ITEMS_AMOUNT && (
-              <Link onClick={handleClickShowMoreGlobal}>{shouldShowMoreGlobal ? 'Show less' : 'Show more'}</Link>
+              <Link onClick={handleClickShowMoreGlobal}>
+                {lang(shouldShowMoreGlobal ? 'ChatList.Search.ShowLess' : 'ChatList.Search.ShowMore')}
+              </Link>
             )}
-            Global Search
+            {lang('DialogList.SearchSectionGlobal')}
           </h3>
           {globalResults.map((id, index) => {
             if (!shouldShowMoreGlobal && index >= LESS_LIST_ITEMS_AMOUNT) {

src/components/left/search/FileResults.tsx

@@ -16,6 +16,7 @@ import { getSenderName } from './helpers/getSenderName';
 import { throttle } from '../../../util/schedulers';
 import { getMessageDocument } from '../../../modules/helpers';
 import useAsyncRendering from '../../right/hooks/useAsyncRendering';
+import useLang from '../../../hooks/useLang';
 
 import Document from '../../common/Document';
 import InfiniteScroll from '../../ui/InfiniteScroll';
@@ -43,6 +44,7 @@ const FileResults: FC<OwnProps & StateProps & DispatchProps> = ({
   searchMessagesGlobal,
   focusMessage,
 }) => {
+  const lang = useLang();
   const handleLoadMore = useCallback(({ direction }: { direction: LoadMoreDirection }) => {
     if (lastSyncTime && direction === LoadMoreDirection.Backwards) {
       runThrottled(() => {
@@ -109,7 +111,12 @@ const FileResults: FC<OwnProps & StateProps & DispatchProps> = ({
         noFastList
       >
         {!canRenderContents && <Loading />}
-        {canRenderContents && (!foundIds || foundIds.length === 0) && <NothingFound />}
+        {canRenderContents && (!foundIds || foundIds.length === 0) && (
+          <NothingFound
+            text={lang('ChatList.Search.NoResults')}
+            description={lang('ChatList.Search.NoResultsDescription')}
+          />
+        )}
         {canRenderContents && foundIds && foundIds.length > 0 && renderList()}
       </InfiniteScroll>
     </div>

src/components/left/search/LinkResults.tsx

@@ -14,6 +14,7 @@ import { formatMonthAndYear, toYearMonth } from '../../../util/dateFormat';
 import { getSenderName } from './helpers/getSenderName';
 import { throttle } from '../../../util/schedulers';
 import useAsyncRendering from '../../right/hooks/useAsyncRendering';
+import useLang from '../../../hooks/useLang';
 
 import InfiniteScroll from '../../ui/InfiniteScroll';
 import WebLink from '../../common/WebLink';
@@ -41,6 +42,7 @@ const LinkResults: FC<OwnProps & StateProps & DispatchProps> = ({
   searchMessagesGlobal,
   focusMessage,
 }) => {
+  const lang = useLang();
   const handleLoadMore = useCallback(({ direction }: { direction: LoadMoreDirection }) => {
     if (lastSyncTime && direction === LoadMoreDirection.Backwards) {
       runThrottled(() => {
@@ -103,7 +105,12 @@ const LinkResults: FC<OwnProps & StateProps & DispatchProps> = ({
         noFastList
       >
         {!canRenderContents && <Loading />}
-        {canRenderContents && (!foundIds || foundIds.length === 0) && <NothingFound />}
+        {canRenderContents && (!foundIds || foundIds.length === 0) && (
+          <NothingFound
+            text={lang('ChatList.Search.NoResults')}
+            description={lang('ChatList.Search.NoResultsDescription')}
+          />
+        )}
         {canRenderContents && foundIds && foundIds.length > 0 && renderList()}
       </InfiniteScroll>
     </div>

src/components/left/search/MediaResults.tsx

@@ -7,17 +7,18 @@ import { GlobalActions } from '../../../global/types';
 import { LoadMoreDirection, MediaViewerOrigin } from '../../../types';
 
 import { MEMO_EMPTY_ARRAY } from '../../../util/memo';
+import { SLIDE_TRANSITION_DURATION } from '../../../config';
 import { createMapStateToProps, StateProps } from './helpers/createMapStateToProps';
 import { pick } from '../../../util/iteratees';
 import buildClassName from '../../../util/buildClassName';
 import { throttle } from '../../../util/schedulers';
+import useLang from '../../../hooks/useLang';
+import useAsyncRendering from '../../right/hooks/useAsyncRendering';
 
 import InfiniteScroll from '../../ui/InfiniteScroll';
 import Media from '../../common/Media';
 import ChatMessage from './ChatMessage';
 import NothingFound from '../../common/NothingFound';
-import useAsyncRendering from '../../right/hooks/useAsyncRendering';
-import { SLIDE_TRANSITION_DURATION } from '../../../config';
 import Loading from '../../ui/Loading';
 
 export type OwnProps = {
@@ -39,6 +40,7 @@ const MediaResults: FC<OwnProps & StateProps & DispatchProps> = ({
   searchMessagesGlobal,
   openMediaViewer,
 }) => {
+  const lang = useLang();
   const handleLoadMore = useCallback(({ direction }: { direction: LoadMoreDirection }) => {
     if (lastSyncTime && direction === LoadMoreDirection.Backwards) {
       runThrottled(() => {
@@ -115,7 +117,12 @@ const MediaResults: FC<OwnProps & StateProps & DispatchProps> = ({
         noFastList
       >
         {!canRenderContents && <Loading />}
-        {canRenderContents && (!foundIds || foundIds.length === 0) && <NothingFound />}
+        {canRenderContents && (!foundIds || foundIds.length === 0) && (
+          <NothingFound
+            text={lang('ChatList.Search.NoResults')}
+            description={lang('ChatList.Search.NoResultsDescription')}
+          />
+        )}
         {isMediaGrid && renderGallery()}
         {isMessageList && renderSearchResult()}
       </InfiniteScroll>

src/components/left/settings/SettingsEditProfile.tsx

@@ -199,7 +199,7 @@ const SettingsEditProfile: FC<StateProps & DispatchProps> = ({
           />
 
           <p className="settings-item-description">
-            {renderText(lang('BioAbout'), ['br', 'simple_markdown'])}
+            {renderText(lang('lng_settings_about_bio'), ['br', 'simple_markdown'])}
           </p>
         </div>
 
@@ -219,7 +219,7 @@ const SettingsEditProfile: FC<StateProps & DispatchProps> = ({
           </p>
           {username && (
             <p className="settings-item-description">
-              This link opens a chat with you:<br />
+              {lang('lng_username_link')}<br />
               <span className="username-link">https://t.me/{username}</span>
             </p>
           )}

src/components/left/settings/SettingsGeneral.tsx

@@ -31,11 +31,6 @@ type StateProps = ISettings['byKey'] & {
 
 type DispatchProps = Pick<GlobalActions, 'setSettingOption' | 'loadStickerSets' | 'loadAddedStickers'>;
 
-const KEYBOARD_SEND_OPTIONS = !IS_TOUCH_ENV ? [
-  { value: 'enter', label: 'Send by Enter', subLabel: 'New line by Shift + Enter' },
-  { value: 'ctrl-enter', label: `Send by ${IS_MAC_OS ? 'Cmd' : 'Ctrl'} + Enter`, subLabel: 'New line by Enter' },
-] : undefined;
-
 const ANIMATION_LEVEL_OPTIONS = [
   'Solid and Steady',
   'Nice and Fast',
@@ -67,6 +62,17 @@ const SettingsGeneral: FC<OwnProps & StateProps & DispatchProps> = ({
   const [isModalOpen, openModal, closeModal] = useFlag();
   const [sticker, setSticker] = useState<ApiSticker>();
 
+  const lang = useLang();
+
+  const KEYBOARD_SEND_OPTIONS = !IS_TOUCH_ENV ? [
+    { value: 'enter', label: lang('lng_settings_send_enter'), subLabel: 'New line by Shift + Enter' },
+    {
+      value: 'ctrl-enter',
+      label: lang(IS_MAC_OS ? 'lng_settings_send_cmdenter' : 'lng_settings_send_ctrlenter'),
+      subLabel: 'New line by Enter',
+    },
+  ] : undefined;
+
   useEffect(() => {
     loadStickerSets();
   }, [loadStickerSets]);
@@ -96,9 +102,6 @@ const SettingsGeneral: FC<OwnProps & StateProps & DispatchProps> = ({
     openModal();
   }, [openModal]);
 
-  const lang = useLang();
-
-
   const stickerSets = stickerSetIds && stickerSetIds.map((id: string) => {
     return stickerSetsById && stickerSetsById[id] && stickerSetsById[id].installedDate ? stickerSetsById[id] : false;
   }).filter(Boolean);

src/components/left/settings/SettingsHeader.tsx

@@ -83,7 +83,7 @@ const SettingsHeader: FC<OwnProps & DispatchProps> = ({
   function renderHeaderContent() {
     switch (currentScreen) {
       case SettingsScreens.EditProfile:
-        return <h3>{lang('EditProfile')}</h3>;
+        return <h3>{lang('lng_settings_information')}</h3>;
       case SettingsScreens.General:
         return <h3>{lang('General')}</h3>;
       case SettingsScreens.Notifications:

src/components/left/settings/SettingsMain.tsx

@@ -40,7 +40,7 @@ const SettingsMain: FC<OwnProps & StateProps> = ({
           icon="edit"
           onClick={() => onScreenSelect(SettingsScreens.EditProfile)}
         >
-          {lang('EditProfile')}
+          {lang('lng_settings_information')}
         </ListItem>
         <ListItem
           icon="folder"

src/components/mediaViewer/SenderInfo.tsx

@@ -41,7 +41,7 @@ const SenderInfo: FC<OwnProps & StateProps & DispatchProps> = ({
     focusMessage({ chatId, messageId });
   }, [chatId, focusMessage, messageId, closeMediaViewer]);
 
-  useLang();
+  const lang = useLang();
 
   if (!sender || (!message && !isAvatar)) {
     return undefined;
@@ -62,7 +62,7 @@ const SenderInfo: FC<OwnProps & StateProps & DispatchProps> = ({
           {senderTitle && renderText(senderTitle)}
         </div>
         <div className="date">
-          {isAvatar ? 'Profile photo' : formatMediaDateTime(message!.date * 1000)}
+          {isAvatar ? lang('lng_mediaview_profile_photo') : formatMediaDateTime(message!.date * 1000)}
         </div>
       </div>
     </div>

src/components/middle/ActionMessage.tsx

@@ -65,7 +65,7 @@ const ActionMessage: FC<OwnProps & StateProps> = ({
   useEnsureMessage(message.chatId, message.replyToMessageId, targetMessage);
   useFocusMessage(ref, message.chatId, isFocused, focusDirection, noFocusHighlight);
 
-  useLang();
+  const lang = useLang();
 
   const noAppearanceAnimation = appearanceOrder <= 0;
   const [isShown, markShown] = useFlag(noAppearanceAnimation);
@@ -79,6 +79,7 @@ const ActionMessage: FC<OwnProps & StateProps> = ({
   const { transitionClassNames } = useShowTransition(isShown, undefined, noAppearanceAnimation, false);
 
   const content = renderActionMessageText(
+    lang,
     message,
     sender,
     targetUser,

src/components/middle/HeaderMenuContainer.tsx

@@ -165,7 +165,9 @@ const HeaderMenuContainer: FC<OwnProps & StateProps & DispatchProps> = ({
               icon="delete"
               onClick={handleDelete}
             >
-              {lang(isPrivate ? 'Delete' : (canDeleteChat ? 'Delete and Leave' : 'Leave'))}
+              {lang(isPrivate
+                ? 'Delete'
+                : (canDeleteChat ? 'GroupInfo.DeleteAndExit' : (isChannel ? 'LeaveChannel' : 'Group.LeaveGroup')))}
             </MenuItem>
           )}
         </Menu>

src/components/middle/HeaderPinnedMessage.tsx

@@ -31,10 +31,11 @@ type OwnProps = {
 const HeaderPinnedMessage: FC<OwnProps> = ({
   message, count, index, customTitle, className, onUnpinMessage, onClick, onAllPinnedClick,
 }) => {
+  const lang = useLang();
   const mediaThumbnail = useWebpThumbnail(message);
   const mediaBlobUrl = useMedia(getMessageMediaHash(message, 'pictogram'));
 
-  const text = getMessageSummaryText(message, Boolean(mediaThumbnail));
+  const text = getMessageSummaryText(lang, message, Boolean(mediaThumbnail));
   const [isUnpinDialogOpen, openUnpinDialog, closeUnpinDialog] = useFlag();
 
   const handleUnpinMessage = useCallback(() => {
@@ -45,8 +46,6 @@ const HeaderPinnedMessage: FC<OwnProps> = ({
     }
   }, [closeUnpinDialog, onUnpinMessage, message.id]);
 
-  const lang = useLang();
-
   return (
     <div className={buildClassName('HeaderPinnedMessage-wrapper', className)}>
       {count > 1 && (

src/components/middle/message/CommentButton.tsx

@@ -8,9 +8,10 @@ import { GlobalActions } from '../../../global/types';
 
 import { pick } from '../../../util/iteratees';
 import { isChatPrivate } from '../../../modules/helpers';
-import { formatInteger, formatIntegerCompact } from '../../../util/textFormat';
+import { formatIntegerCompact } from '../../../util/textFormat';
 import buildClassName from '../../../util/buildClassName';
 import { selectThreadInfo } from '../../../modules/selectors';
+import useLang from '../../../hooks/useLang';
 
 import Avatar from '../../common/Avatar';
 
@@ -32,6 +33,7 @@ type DispatchProps = Pick<GlobalActions, 'openChat'>;
 const CommentButton: FC<OwnProps & StateProps & DispatchProps> = ({
   disabled, threadInfo, usersById, chatsById, openChat,
 }) => {
+  const lang = useLang();
   const {
     threadId, chatId, messagesCount, lastMessageId, lastReadInboxMessageId, recentReplierIds,
   } = threadInfo;
@@ -76,24 +78,14 @@ const CommentButton: FC<OwnProps & StateProps & DispatchProps> = ({
       <i className="icon-comments-sticker" />
       {(!recentRepliers || recentRepliers.length === 0) && <i className="icon-comments" />}
       {renderRecentRepliers()}
-      <div className="label">{renderLabel(messagesCount)}</div>
+      <div className="label">
+        {messagesCount ? lang('Comments', messagesCount, 'i') : lang('LeaveAComment')}
+      </div>
       <i className="icon-next" />
     </div>
   );
 };
 
-function renderLabel(messagesCount: number) {
-  if (messagesCount === 0) {
-    return 'Leave a Comment';
-  }
-
-  if (messagesCount === 1) {
-    return '1 Comment';
-  }
-
-  return `${formatInteger(messagesCount)} Comments`;
-}
-
 export default memo(withGlobal<OwnProps>(
   (global, { message }) => {
     const { threadId, chatId } = message.threadInfo!;

src/components/middle/message/Message.tsx

@@ -756,7 +756,7 @@ const Message: FC<OwnProps & StateProps & DispatchProps> = ({
               color="translucent-white"
               round
               size="tiny"
-              ariaLabel="Forward message"
+              ariaLabel={lang('lng_context_forward_msg')}
               onClick={isLastInDocumentGroup ? handleGroupForward : handleForward}
             >
               <i className="icon-share-filled" />

src/components/middle/message/helpers/copyOptions.ts

@@ -21,7 +21,7 @@ export function getMessageCopyOptions(
 
   if (canImageBeCopied) {
     options.push({
-      label: 'Copy Media',
+      label: 'lng_context_copy_image',
       handler: () => {
         mediaLoader.fetch(mediaHash, ApiMediaFormat.BlobUrl).then(copyImageToClipboard);
 
@@ -57,7 +57,7 @@ export function getMessageCopyOptions(
 
   if (onCopyLink) {
     options.push({
-      label: 'CopyMessageLink',
+      label: 'lng_context_copy_message_link',
       handler: () => {
         onCopyLink();
 
@@ -73,11 +73,11 @@ export function getMessageCopyOptions(
 
 function getCopyLabel(hasSelection: boolean, canImageBeCopied: boolean): string {
   if (hasSelection) {
-    return 'Copy Selected Text';
+    return 'lng_context_copy_selected';
   }
 
   if (canImageBeCopied) {
-    return 'Copy Text';
+    return 'lng_context_copy_text';
   }
 
   return 'Copy';

src/components/right/Profile.tsx

@@ -37,6 +37,7 @@ import useProfileViewportIds from './hooks/useProfileViewportIds';
 import useProfileState from './hooks/useProfileState';
 import useTransitionFixes from './hooks/useTransitionFixes';
 import useAsyncRendering from './hooks/useAsyncRendering';
+import useLang from '../../hooks/useLang';
 
 import Transition from '../ui/Transition';
 import InfiniteScroll from '../ui/InfiniteScroll';
@@ -120,6 +121,8 @@ const Profile: FC<OwnProps & StateProps & DispatchProps> = ({
   // eslint-disable-next-line no-null/no-null
   const transitionRef = useRef<HTMLDivElement>(null);
 
+  const lang = useLang();
+
   const [activeTab, setActiveTab] = useState(0);
 
   const tabs = useMemo(() => ([
@@ -228,16 +231,16 @@ const Profile: FC<OwnProps & StateProps & DispatchProps> = ({
           text = areMembersHidden ? 'You have no access to group members list.' : 'No members found';
           break;
         case 'documents':
-          text = 'No documents found.';
+          text = lang('lng_media_file_empty_search');
           break;
         case 'links':
-          text = 'No links found.';
+          text = lang('lng_media_link_empty_search');
           break;
         case 'audio':
-          text = 'No audio found.';
+          text = lang('lng_media_song_empty_search');
           break;
         default:
-          text = 'No media found.';
+          text = lang('SharedMedia.EmptyTitle');
       }
 
       return (

src/components/right/RightHeader.tsx

@@ -235,7 +235,7 @@ const RightHeader: FC<OwnProps & StateProps & DispatchProps> = ({
         return (
           <SearchInput
             value={stickerSearchQuery}
-            placeholder="Search Stickers"
+            placeholder={lang('SearchStickersHint')}
             onChange={handleStickerSearchQueryChange}
           />
         );

src/components/right/RightSearch.tsx

@@ -17,6 +17,7 @@ import {
   isChatChannel,
 } from '../../modules/helpers';
 import renderText from '../common/helpers/renderText';
+import useLang from '../../hooks/useLang';
 import { orderBy, pick } from '../../util/iteratees';
 import { MEMO_EMPTY_ARRAY } from '../../util/memo';
 
@@ -60,6 +61,8 @@ const RightSearch: FC<OwnProps & StateProps & DispatchProps> = ({
   searchTextMessagesLocal,
   focusMessage,
 }) => {
+  const lang = useLang();
+
   const foundResults = useMemo(() => {
     if (!query || !foundIds || !foundIds.length || !messagesById) {
       return MEMO_EMPTY_ARRAY;
@@ -98,7 +101,7 @@ const RightSearch: FC<OwnProps & StateProps & DispatchProps> = ({
     message, senderUser, senderChat, onClick,
   }: Result) => {
     const title = senderChat ? getChatTitle(senderChat) : getUserFullName(senderUser);
-    const text = getMessageSummaryText(message);
+    const text = getMessageSummaryText(lang, message);
 
     return (
       <ListItem className="chat-item-clickable search-result-message m-0" onClick={onClick}>

src/components/right/StickerSetResult.tsx

@@ -12,6 +12,7 @@ import { pick } from '../../util/iteratees';
 import { selectShouldLoopStickers, selectStickerSet } from '../../modules/selectors';
 import useFlag from '../../hooks/useFlag';
 import useOnChange from '../../hooks/useOnChange';
+import useLang from '../../hooks/useLang';
 
 import Button from '../ui/Button';
 import StickerButton from '../common/StickerButton';
@@ -37,6 +38,7 @@ const STICKERS_TO_DISPLAY = 5;
 const StickerSetResult: FC<OwnProps & StateProps & DispatchProps> = ({
   stickerSetId, observeIntersection, set, shouldPlay, loadStickers, toggleStickerSet, isSomeModalOpen, onModalToggle,
 }) => {
+  const lang = useLang();
   const isAdded = set && Boolean(set.installedDate);
   const areStickersLoaded = Boolean(set && set.stickers);
 
@@ -79,7 +81,7 @@ const StickerSetResult: FC<OwnProps & StateProps & DispatchProps> = ({
       <div className="sticker-set-header">
         <div className="title-wrapper">
           <h3 className="title">{set.title}</h3>
-          <p className="count">{set.count} stickers</p>
+          <p className="count">{lang('Stickers', set.count, 'i')}</p>
         </div>
         <Button
           className={isAdded ? 'is-added' : undefined}
@@ -89,7 +91,7 @@ const StickerSetResult: FC<OwnProps & StateProps & DispatchProps> = ({
           fluid
           onClick={handleAddClick}
         >
-          {isAdded ? 'Added' : 'Add'}
+          {lang(isAdded ? 'Stickers.Installed' : 'Stickers.Install')}
         </Button>
       </div>
       <div className="sticker-set-main">

src/components/right/management/ManageGroupRecentActions.tsx

@@ -111,7 +111,7 @@ const ManageGroupRecentActions: FC<OwnProps & StateProps> = ({ chat }) => {
         </div>
 
         <div className="section not-implemented">
-          <h3 className="section-heading">Admins</h3>
+          <h3 className="section-heading">{lang('Channel.Management.Title')}</h3>
 
           <div className="ListItem no-selection">
             <Checkbox

src/config.ts

@@ -124,7 +124,7 @@ export const MAX_MEDIA_FILES_FOR_ALBUM = 10;
 export const MAX_ACTIVE_PINNED_CHATS = 5;
 export const SCHEDULED_WHEN_ONLINE = 0x7FFFFFFE;
 export const DEFAULT_LANG_PACK = 'android';
-export const LANG_PACKS = ['android', 'ios'];
+export const LANG_PACKS = ['android', 'ios', 'tdesktop'];
 export const TIPS_USERNAME = 'TelegramTips';
 export const FEEDBACK_URL = 'https://bugs.telegram.org/?tag_ids=41&sort=time';
 export const DARK_THEME_BG_COLOR = '#0F0F0F';

src/hooks/useChatContextActions.ts

@@ -1,7 +1,10 @@
 import { useMemo } from '../lib/teact/teact';
 import { getDispatch } from '../lib/teact/teactn';
 import { ApiChat, ApiUser } from '../api/types';
-import { isChatArchived, getCanDeleteChat, isChatPrivate } from '../modules/helpers';
+import {
+  isChatArchived, getCanDeleteChat, isChatPrivate, isChatChannel,
+} from '../modules/helpers';
+import useLang from './useLang';
 
 export default ({
   chat,
@@ -16,6 +19,8 @@ export default ({
   folderId?: number;
   isPinned?: boolean;
 }) => {
+  const lang = useLang();
+
   const {
     toggleChatPinned,
     updateChatMutedState,
@@ -31,23 +36,39 @@ export default ({
     const isChatWithSelf = privateChatUser && privateChatUser.isSelf;
 
     const actionUnreadMark = chat.unreadCount || chat.hasUnreadMark
-      ? { title: 'Mark as Read', icon: 'readchats', handler: () => toggleChatUnread({ id: chat.id }) }
-      : { title: 'Mark as Unread', icon: 'unread', handler: () => toggleChatUnread({ id: chat.id }) };
+      ? { title: lang('MarkAsRead'), icon: 'readchats', handler: () => toggleChatUnread({ id: chat.id }) }
+      : { title: lang('MarkAsUnread'), icon: 'unread', handler: () => toggleChatUnread({ id: chat.id }) };
 
     const actionPin = isPinned
-      ? { title: 'Unpin', icon: 'unpin', handler: () => toggleChatPinned({ id: chat.id, folderId }) }
-      : { title: 'Pin', icon: 'pin', handler: () => toggleChatPinned({ id: chat.id, folderId }) };
+      ? {
+        title: lang('UnpinFromTop'),
+        icon: 'unpin',
+        handler: () => toggleChatPinned({ id: chat.id, folderId }),
+      }
+      : { title: lang('PinToTop'), icon: 'pin', handler: () => toggleChatPinned({ id: chat.id, folderId }) };
 
     const actionMute = chat.isMuted
-      ? { title: 'Unmute', icon: 'unmute', handler: () => updateChatMutedState({ chatId: chat.id, isMuted: false }) }
-      : { title: 'Mute', icon: 'mute', handler: () => updateChatMutedState({ chatId: chat.id, isMuted: true }) };
+      ? {
+        title: lang('ChatList.Unmute'),
+        icon: 'unmute',
+        handler: () => updateChatMutedState({ chatId: chat.id, isMuted: false }),
+      }
+      : {
+        title: lang('ChatList.Mute'),
+        icon: 'mute',
+        handler: () => updateChatMutedState({ chatId: chat.id, isMuted: true }),
+      };
 
     const actionArchive = isChatArchived(chat)
-      ? { title: 'Unarchive', icon: 'unarchive', handler: () => toggleChatArchived({ id: chat.id }) }
-      : { title: 'Archive', icon: 'archive', handler: () => toggleChatArchived({ id: chat.id }) };
+      ? { title: lang('Unarchive'), icon: 'unarchive', handler: () => toggleChatArchived({ id: chat.id }) }
+      : { title: lang('Archive'), icon: 'archive', handler: () => toggleChatArchived({ id: chat.id }) };
 
     const actionDelete = {
-      title: isChatPrivate(chat.id) ? 'Delete' : (getCanDeleteChat(chat) ? 'Delete and Leave' : 'Leave'),
+      title: isChatPrivate(chat.id)
+        ? lang('Delete')
+        : lang(getCanDeleteChat(chat)
+          ? 'DeleteChat'
+          : (isChatChannel(chat) ? 'LeaveChannel' : 'Group.LeaveGroup')),
       icon: 'delete',
       destructive: true,
       handler: handleDelete,
@@ -63,7 +84,7 @@ export default ({
       actionDelete,
     ];
   }, [
-    chat, privateChatUser, handleDelete, folderId, isPinned,
-    toggleChatPinned, updateChatMutedState, toggleChatArchived, toggleChatUnread,
+    chat, privateChatUser, lang, isPinned, handleDelete, toggleChatUnread, toggleChatPinned, folderId,
+    updateChatMutedState, toggleChatArchived,
   ]);
 };

src/modules/helpers/chats.ts

@@ -428,7 +428,7 @@ export function getMessageSenderName(chatId: number, sender?: ApiUser) {
   }
 
   if (sender.isSelf) {
-    return 'You';
+    return getTranslation('FromYou');
   }
 
   return getUserFirstOrLastName(sender);

src/modules/helpers/messages.ts

@@ -1,6 +1,7 @@
 import {
   ApiChat, ApiMessage, ApiMessageEntityTypes, ApiUser,
 } from '../../api/types';
+import { LangFn } from '../../hooks/useLang';
 
 import { LOCAL_MESSAGE_ID_BASE, SERVICE_NOTIFICATIONS_USER_ID, RE_LINK_TEMPLATE } from '../../config';
 import parseEmojiOnlyString from '../../components/common/helpers/parseEmojiOnlyString';
@@ -26,62 +27,34 @@ export function getMessageOriginalId(message: ApiMessage) {
   return message.previousLocalId || message.id;
 }
 
-export function getMessageSummaryText(message: ApiMessage, noEmoji = false) {
+export function getMessageSummaryText(lang: LangFn, message: ApiMessage, noEmoji = false) {
   const {
     text, photo, video, audio, voice, document, sticker, contact, poll, invoice,
   } = message.content;
 
   if (message.groupedId) {
-    if (text) {
-      return `${noEmoji ? '' : '🖼 '}${text.text}`;
-    }
-
-    return 'Album';
+    return `${noEmoji ? '' : '🖼 '}${text ? text.text : lang('lng_in_dlg_album')}`;
   }
 
   if (photo) {
-    if (text) {
-      return `${noEmoji ? '' : '🖼 '}${text.text}`;
-    }
-
-    return 'Photo';
+    return `${noEmoji ? '' : '🖼 '}${text ? text.text : lang('AttachPhoto')}`;
   }
 
   if (video) {
-    if (video.isGif) {
-      if (text) {
-        return `${noEmoji ? '' : 'GIF '}${text.text}`;
-      }
-
-      return 'GIF';
-    } else {
-      if (text) {
-        return `${noEmoji ? '' : '📹 '}${text.text}`;
-      }
-
-      return 'Video';
-    }
+    return `${noEmoji ? '' : '📹 '}${text ? text.text : lang(video.isGif ? 'AttachGif' : 'AttachVideo')}`;
   }
 
   if (sticker) {
-    return `${sticker.emoji} Sticker`;
+    return `${sticker.emoji} ${lang('AttachSticker')} `;
   }
 
   if (audio) {
     const caption = [audio.title, audio.performer].filter(Boolean).join(' — ') || (text && text.text);
-    if (caption) {
-      return `🎧 ${caption}`;
-    }
-
-    return 'Audio';
+    return `${noEmoji ? '' : '🎧 '}${caption || lang('AttachMusic')}`;
   }
 
   if (voice) {
-    if (text) {
-      return `${noEmoji ? '' : '🎤 '}${text.text}`;
-    }
-
-    return 'Voice Message';
+    return `${noEmoji ? '' : '🎤 '}${text ? text.text : lang('AttachAudio')}`;
   }
 
   if (document) {
@@ -89,11 +62,11 @@ export function getMessageSummaryText(message: ApiMessage, noEmoji = false) {
   }
 
   if (contact) {
-    return 'Contact';
+    return lang('AttachContact');
   }
 
   if (poll) {
-    return `📊 ${poll.summary.question}`;
+    return `${noEmoji ? '' : '📊 '}${poll.summary.question}`;
   }
 
   if (invoice) {
@@ -107,60 +80,6 @@ export function getMessageSummaryText(message: ApiMessage, noEmoji = false) {
   return CONTENT_NOT_SUPPORTED;
 }
 
-export function getNotificationText(message: ApiMessage) {
-  const {
-    text, photo, video, audio, voice, document, sticker, contact, poll, invoice,
-  } = message.content;
-
-  if (message.groupedId) {
-    return `🖼 ${text ? text.text : 'Album'}`;
-  }
-
-  if (photo) {
-    return `🖼 ${text ? text.text : 'Photo'}`;
-  }
-
-  if (video) {
-    return `📹 ${text ? text.text : video.isGif ? 'GIF' : 'Video'}`;
-  }
-
-  if (sticker) {
-    return `${sticker.emoji} Sticker `;
-  }
-
-  if (audio) {
-    const caption = [audio.title, audio.performer].filter(Boolean).join(' — ') || (text && text.text);
-    return `🎧 ${caption || 'Audio'}`;
-  }
-
-  if (voice) {
-    return `🎤 ${text ? text.text : 'Voice Message'}`;
-  }
-
-  if (document) {
-    return `📎 ${text ? text.text : document.fileName}`;
-  }
-
-  if (contact) {
-    return 'Contact';
-  }
-
-  if (poll) {
-    return `📊 ${poll.summary.question}`;
-  }
-
-  if (invoice) {
-    return 'Invoice';
-  }
-
-  if (text) {
-    return text.text;
-  }
-
-  return CONTENT_NOT_SUPPORTED;
-}
-
-
 export function getMessageText(message: ApiMessage) {
   const {
     text, sticker, photo, video, audio, voice, document, poll, webPage, contact, invoice,

src/modules/helpers/users.ts

@@ -70,7 +70,7 @@ export function getUserStatus(user: ApiUser, lang: LangFn) {
   }
 
   if (user.type && user.type === 'userTypeBot') {
-    return 'bot';
+    return lang('Bot');
   }
 
   if (!user.status) {

src/util/notifications.ts

@@ -7,11 +7,12 @@ import {
   getChatTitle,
   getMessageAction,
   getMessageSenderName,
-  getNotificationText,
+  getMessageSummaryText,
   getPrivateChatUserId,
   isActionMessage,
   isChatChannel,
 } from '../modules/helpers';
+import { getTranslation } from './langProvider';
 import { replaceSettings } from '../modules/reducers';
 import { selectChatMessage, selectUser } from '../modules/selectors';
 import { IS_SERVICE_WORKER_SUPPORTED } from './environment';
@@ -225,6 +226,7 @@ function getNotificationContent(chat: ApiChat, message: ApiMessage) {
       ? chat
       : messageSender;
     body = renderActionMessageText(
+      getTranslation,
       message,
       actionOrigin,
       actionTargetUser,
@@ -234,7 +236,7 @@ function getNotificationContent(chat: ApiChat, message: ApiMessage) {
     ) as string;
   } else {
     const senderName = getMessageSenderName(chat.id, messageSender);
-    const summary = getNotificationText(message);
+    const summary = getMessageSummaryText(getTranslation, message);
 
     body = senderName ? `${senderName}: ${summary}` : summary;
   }

tests/assertions.ts

@@ -137,7 +137,7 @@ export function expectCommentButton(
     expect(button.querySelector('.label')).toHaveTextContent(`${commentsCount} Comments`);
     expect(button.querySelectorAll('.Avatar')).toHaveLength(Math.min(authorsCount, 3));
   } else {
-    expect(button.querySelector('.label')).toHaveTextContent('Leave a Comment');
+    expect(button.querySelector('.label')).toHaveTextContent('Leave a comment');
     expect(button.querySelectorAll('.Avatar')).toHaveLength(0);
   }