Reactions: Add maximum unique reactions limit, add optimistic UI for first reaction (#2205)

src/api/gramjs/apiBuilders/appConfig.ts

@@ -73,6 +73,7 @@ export function buildAppConfig(json: GramJs.TypeJSONValue): ApiAppConfig {
     autologinDomains: appConfig.autologin_domains || [],
     autologinToken: appConfig.autologin_token || '',
     urlAuthDomains: appConfig.url_auth_domains || [],
+    maxUniqueReactions: appConfig.reactions_uniq_max,
     premiumBotUsername: appConfig.premium_bot_username,
     premiumInvoiceSlug: appConfig.premium_invoice_slug,
     premiumPromoOrder: appConfig.premium_promo_order,

src/api/types/misc.ts

@@ -174,6 +174,7 @@ export interface ApiAppConfig {
   isPremiumPurchaseBlocked: boolean;
   premiumPromoOrder: string[];
   defaultEmojiStatusesStickerSetId: string;
+  maxUniqueReactions: number;
   limits: Record<ApiLimitType, readonly [number, number]>;
 }
 

src/components/middle/ReactorListModal.tsx

@@ -65,6 +65,10 @@ const ReactorListModal: FC<OwnProps & StateProps> = ({
   const chatIdRef = useRef<string>();
 
   useEffect(() => {
+    if (isOpen && !isClosing) {
+      chatIdRef.current = undefined;
+    }
+
     if (isClosing && !isOpen) {
       stopClosing();
       setChosenTab(undefined);
@@ -96,14 +100,14 @@ const ReactorListModal: FC<OwnProps & StateProps> = ({
 
   const allReactions = useMemo(() => {
     return reactors?.reactions ? unique(reactors.reactions.map((l) => l.reaction)) : [];
-  }, [reactors?.reactions]);
+  }, [reactors]);
 
   const userIds = useMemo(() => {
     if (chosenTab) {
       return reactors?.reactions.filter((l) => l.reaction === chosenTab).map((l) => l.userId);
     }
     return unique(reactors?.reactions.map((l) => l.userId).concat(seenByUserIds || []) || []);
-  }, [chosenTab, reactors?.reactions, seenByUserIds]);
+  }, [chosenTab, reactors, seenByUserIds]);
 
   const [viewportIds, getMore] = useInfiniteScroll(
     handleLoadMore, userIds, reactors && reactors.nextOffset === undefined,
@@ -137,6 +141,7 @@ const ReactorListModal: FC<OwnProps & StateProps> = ({
             const count = reactions?.results.find((l) => l.reaction === reaction)?.count;
             return (
               <Button
+                key={reaction}
                 className={buildClassName(chosenTab === reaction && 'chosen')}
                 size="tiny"
                 ripple
@@ -186,7 +191,7 @@ const ReactorListModal: FC<OwnProps & StateProps> = ({
       <Button
         className="confirm-dialog-button"
         isText
-        onClick={closeReactorListModal}
+        onClick={handleClose}
       >
         {lang('Close')}
       </Button>

src/components/middle/message/ContextMenuContainer.tsx

@@ -89,6 +89,7 @@ type StateProps = {
   canShowSeenBy?: boolean;
   enabledReactions?: string[];
   canScheduleUntilOnline?: boolean;
+  maxUniqueReactions?: number;
 };
 
 const ContextMenuContainer: FC<OwnProps & StateProps> = ({
@@ -117,6 +118,7 @@ const ContextMenuContainer: FC<OwnProps & StateProps> = ({
   canRemoveReaction,
   canEdit,
   enabledReactions,
+  maxUniqueReactions,
   isPrivate,
   isCurrentUserPremium,
   canForward,
@@ -402,6 +404,7 @@ const ContextMenuContainer: FC<OwnProps & StateProps> = ({
         canBuyPremium={canBuyPremium}
         isOpen={isMenuOpen}
         enabledReactions={enabledReactions}
+        maxUniqueReactions={maxUniqueReactions}
         anchor={anchor}
         canShowReactionsCount={canShowReactionsCount}
         canShowReactionList={canShowReactionList}
@@ -488,7 +491,7 @@ export default memo(withGlobal<OwnProps>(
     const { threadId } = selectCurrentMessageList(global) || {};
     const activeDownloads = selectActiveDownloadIds(global, message.chatId);
     const chat = selectChat(global, message.chatId);
-    const { seenByExpiresAt, seenByMaxChatMembers } = global.appConfig || {};
+    const { seenByExpiresAt, seenByMaxChatMembers, maxUniqueReactions } = global.appConfig || {};
     const {
       noOptions,
       canReply,
@@ -560,6 +563,7 @@ export default memo(withGlobal<OwnProps>(
       activeDownloads,
       canShowSeenBy,
       enabledReactions: chat?.isForbidden ? undefined : chat?.fullInfo?.enabledReactions,
+      maxUniqueReactions,
       isPrivate,
       isCurrentUserPremium,
       hasFullInfo: Boolean(chat?.fullInfo),

src/components/middle/message/MessageContextMenu.tsx

@@ -1,9 +1,9 @@
-import type { FC } from '../../../lib/teact/teact';
 import React, {
-  memo, useCallback, useEffect, useRef,
+  memo, useMemo, useCallback, useEffect, useRef,
 } from '../../../lib/teact/teact';
 import { getActions } from '../../../global';
 
+import type { FC } from '../../../lib/teact/teact';
 import type {
   ApiAvailableReaction, ApiMessage, ApiSponsoredMessage, ApiStickerSet, ApiUser,
 } from '../../../api/types';
@@ -36,6 +36,7 @@ type OwnProps = {
   message: ApiMessage | ApiSponsoredMessage;
   canSendNow?: boolean;
   enabledReactions?: string[];
+  maxUniqueReactions?: number;
   canReschedule?: boolean;
   canReply?: boolean;
   canPin?: boolean;
@@ -103,6 +104,7 @@ const MessageContextMenu: FC<OwnProps> = ({
   isPrivate,
   isCurrentUserPremium,
   enabledReactions,
+  maxUniqueReactions,
   anchor,
   canSendNow,
   canReschedule,
@@ -171,6 +173,11 @@ const MessageContextMenu: FC<OwnProps> = ({
 
   const [isReady, markIsReady, unmarkIsReady] = useFlag();
 
+  const currentReactions = useMemo(() => {
+    if (isSponsoredMessage) return undefined;
+    return message.reactions?.results.map((reaction) => reaction.reaction);
+  }, [isSponsoredMessage, message]);
+
   const handleAfterCopy = useCallback(() => {
     showNotification({
       message: lang('Share.Link.Copied'),
@@ -276,6 +283,8 @@ const MessageContextMenu: FC<OwnProps> = ({
       {canShowReactionList && (
         <ReactionSelector
           enabledReactions={enabledReactions}
+          currentReactions={currentReactions}
+          maxUniqueReactions={maxUniqueReactions}
           onSendReaction={onSendReaction!}
           isPrivate={isPrivate}
           availableReactions={availableReactions}

src/components/middle/message/ReactionSelector.tsx

@@ -1,6 +1,8 @@
-import type { FC } from '../../../lib/teact/teact';
-import React, { memo, useLayoutEffect, useRef } from '../../../lib/teact/teact';
+import React, {
+  memo, useLayoutEffect, useMemo, useRef,
+} from '../../../lib/teact/teact';
 
+import type { FC } from '../../../lib/teact/teact';
 import type { ApiAvailableReaction } from '../../../api/types';
 
 import useHorizontalScroll from '../../../hooks/useHorizontalScroll';
@@ -8,10 +10,8 @@ import useFlag from '../../../hooks/useFlag';
 import { getTouchY } from '../../../util/scrollLock';
 import { createClassNameBuilder } from '../../../util/buildClassName';
 import { IS_COMPACT_MENU } from '../../../util/environment';
-import { getActions } from '../../../global';
 
 import ReactionSelectorReaction from './ReactionSelectorReaction';
-import Button from '../../ui/Button';
 
 import './ReactionSelector.scss';
 
@@ -20,6 +20,8 @@ type OwnProps = {
   onSendReaction: (reaction: string, x: number, y: number) => void;
   isPrivate?: boolean;
   availableReactions?: ApiAvailableReaction[];
+  currentReactions?: string[];
+  maxUniqueReactions?: number;
   isReady?: boolean;
   canBuyPremium?: boolean;
   isCurrentUserPremium?: boolean;
@@ -30,13 +32,12 @@ const cn = createClassNameBuilder('ReactionSelector');
 const ReactionSelector: FC<OwnProps> = ({
   availableReactions,
   enabledReactions,
-  onSendReaction,
+  currentReactions,
+  maxUniqueReactions,
   isPrivate,
   isReady,
-  canBuyPremium,
-  isCurrentUserPremium,
+  onSendReaction,
 }) => {
-  const { openPremiumModal } = getActions();
   // eslint-disable-next-line no-null/no-null
   const itemsScrollRef = useRef<HTMLDivElement>(null);
   const [isHorizontalScrollEnabled, enableHorizontalScroll] = useFlag(false);
@@ -55,7 +56,17 @@ const ReactionSelector: FC<OwnProps> = ({
     }
   };
 
-  if ((!isPrivate && !enabledReactions?.length) || !availableReactions) return undefined;
+  const reactionsToRender = useMemo(() => {
+    return availableReactions?.map((reaction) => {
+      if (reaction.isInactive) return undefined;
+      if (!isPrivate && (!enabledReactions || !enabledReactions.includes(reaction.reaction))) return undefined;
+      if (maxUniqueReactions && currentReactions && currentReactions.length >= maxUniqueReactions
+        && !currentReactions.includes(reaction.reaction)) return undefined;
+      return reaction;
+    }) || [];
+  }, [availableReactions, currentReactions, enabledReactions, isPrivate, maxUniqueReactions]);
+
+  if (!reactionsToRender.length) return undefined;
 
   return (
     <div className={cn('&', IS_COMPACT_MENU && 'compact')} onWheelCapture={handleWheel} onTouchMove={handleWheel}>
@@ -63,9 +74,8 @@ const ReactionSelector: FC<OwnProps> = ({
       <div className={cn('bubble-small')} />
       <div className={cn('items-wrapper')}>
         <div className={cn('items', ['no-scrollbar'])} ref={itemsScrollRef}>
-          {availableReactions?.map((reaction, i) => {
-            if (reaction.isInactive || (reaction.isPremium && !isCurrentUserPremium)
-              || (!isPrivate && (!enabledReactions || !enabledReactions.includes(reaction.reaction)))) return undefined;
+          {reactionsToRender.map((reaction, i) => {
+            if (!reaction) return undefined;
             return (
               <ReactionSelectorReaction
                 key={reaction.reaction}
@@ -76,23 +86,6 @@ const ReactionSelector: FC<OwnProps> = ({
               />
             );
           })}
-          {canBuyPremium && Boolean(
-            availableReactions
-              .filter((r) => r.isPremium && (!enabledReactions || enabledReactions.includes(r.reaction)))
-              .length,
-          ) && (
-            <Button
-              round
-              color="translucent"
-              className={cn('blocked-button')}
-              // eslint-disable-next-line react/jsx-no-bind
-              onClick={() => openPremiumModal({
-                initialSection: 'unique_reactions',
-              })}
-            >
-              <i className="icon-lock-badge" />
-            </Button>
-          )}
         </div>
       </div>
     </div>

src/global/actions/api/reactions.ts

@@ -224,17 +224,8 @@ addActionHandler('loadReactors', async (global, actions, payload) => {
     global = addUsers(global, buildCollectionByKey(result.users, 'id'));
   }
 
-  const { nextOffset, count, reactions } = result;
-
   setGlobal(updateChatMessage(global, chatId, messageId, {
-    reactors: {
-      nextOffset,
-      count,
-      reactions: [
-        ...(message.reactors?.reactions || []),
-        ...reactions,
-      ],
-    },
+    reactors: result,
   }));
 });
 

src/global/reducers/reactions.ts

@@ -36,11 +36,7 @@ export function subtractXForEmojiInteraction(global: GlobalState, x: number) {
 }
 
 export function addMessageReaction(global: GlobalState, chatId: string, messageId: number, reaction: string) {
-  const { reactions } = selectChatMessage(global, chatId, messageId) || {};
-
-  if (!reactions) {
-    return global;
-  }
+  const reactions = selectChatMessage(global, chatId, messageId)?.reactions || { results: [] };
 
   // Update UI without waiting for server response
   let results = reactions.results.map((l) => (l.reaction === reaction