PRD-2076: Continue response functionality

i18n/mobile/chat/en.json

@@ -120,7 +120,8 @@
     },
     "AI_MESSAGE_ACTIONS": {
       "TEXT_EDIT": "Edit",
-      "TEXT_COPY": "Copy"
+      "TEXT_COPY": "Copy",
+      "TEXT_CONTINUE_RESPONSE": "Continue response"
     },
     "EDIT_MESSAGE_INPUT": {
       "TEXT_EDIT_MESSAGE": "Edit message",

libs/mobile/chat/features/ai-message-actions/src/lib/component.tsx

@@ -12,12 +12,16 @@ import { ToastService } from '@open-webui-react-native/shared/utils/toast-servic
 interface AiMessageActionsProps {
   message: Message;
   onEditPress: (messageId: string, content: string) => void;
+  onContinueResponsePress: (messageId: string, content: string) => void;
+  isLast: boolean;
 }
 
 //TODO Extend with more actions - https://www.figma.com/design/YPCZjyVlD86psDwUxvMVBc/OpenWebUI-Redesign-React-Native?node-id=27540-25291&t=kg2yUIDp3UQDStLf-0
 export function AiMessageActions({
   message,
   onEditPress,
+  onContinueResponsePress,
+  isLast,
   children,
 }: PropsWithChildren<AiMessageActionsProps>): ReactElement {
   const translate = useTranslation('CHAT.AI_MESSAGE_ACTIONS');
@@ -35,6 +39,11 @@ export function AiMessageActions({
     actionsSheetRef.current?.dismiss();
   };
 
+  const handleContinueResponsePress = (): void => {
+    onContinueResponsePress(message.id, message.content);
+    actionsSheetRef.current?.dismiss();
+  };
+
   const actions: Array<ActionSheetItemProps> = compact([
     isFeatureEnabled(FeatureID.AI_EDIT_MESSAGE) && {
       title: translate('TEXT_EDIT'),
@@ -46,6 +55,11 @@ export function AiMessageActions({
       iconName: 'copy',
       onPress: copyToClipboard,
     },
+    isLast && {
+      title: translate('TEXT_CONTINUE_RESPONSE'),
+      iconName: 'play',
+      onPress: handleContinueResponsePress,
+    },
   ]);
 
   return (

libs/mobile/chat/features/chat/src/lib/components/messages-list/component.tsx

@@ -1,14 +1,23 @@
 import { FlashList } from '@shopify/flash-list';
+import { useLocalSearchParams } from 'expo-router';
 import { delay } from 'lodash-es';
 import { ReactElement, useCallback, useRef, useState } from 'react';
 import { NativeScrollEvent, NativeSyntheticEvent } from 'react-native';
 import { useSharedValue, withTiming } from 'react-native-reanimated';
 import { AiMessageActions } from '@open-webui-react-native/mobile/chat/features/ai-message-actions';
 import { useManageMessageSiblings } from '@open-webui-react-native/mobile/chat/features/use-manage-messages-siblings';
 import { UserMessageActions } from '@open-webui-react-native/mobile/chat/features/user-message-actions';
+import { useSetSelectedModel } from '@open-webui-react-native/mobile/shared/features/use-set-selected-model';
 import { View, AppFlashList } from '@open-webui-react-native/mobile/shared/ui/ui-kit';
-import { History as ChatHistory, Message } from '@open-webui-react-native/shared/data-access/api';
+import { ChatScreenParams } from '@open-webui-react-native/mobile/shared/utils/navigation';
+import {
+  chatApi,
+  History as ChatHistory,
+  Message,
+  prepareCompleteChatPayload,
+} from '@open-webui-react-native/shared/data-access/api';
 import { Role } from '@open-webui-react-native/shared/data-access/common';
+import { socketService } from '@open-webui-react-native/shared/data-access/websocket';
 import { ChatAiMessage } from '../ai-message';
 import { ChatBottomButton } from '../chat-bottom-button';
 import { ChatUserMessage } from '../user-message';
@@ -18,9 +27,9 @@ interface ChatMessagesListProps {
   isMessagesListLoaded: boolean;
   onLayout: () => void;
   isInputFocusing: boolean;
+  onEditPress: (messageId: string, content: string) => void;
   history?: ChatHistory;
   messages?: Array<Message>;
-  onEditPress: (messageId: string, content: string) => void;
   editingMessageId?: string;
 }
 
@@ -42,6 +51,9 @@ export default function ChatMessagesList({
   const [autoscrollToBottomThreshold, setAutoscrollToBottomThreshold] = useState<number | undefined>(1);
 
   const { showPreviousSibling, showNextSibling, getSiblingsInfo } = useManageMessageSiblings(chatId, history);
+  const { mutate: completeChat } = chatApi.useCompleteChat();
+  const { id }: ChatScreenParams = useLocalSearchParams();
+  const { modelId } = useSetSelectedModel(id);
 
   const handleContentSizeChange = (): void => {
     //NOTE: Needs to wait until the initial scroll to the bottom or content generation finished and not show the ChatBottomButton before
@@ -116,13 +128,32 @@ export default function ChatMessagesList({
     }, 1000);
   };
 
+  const handleContinueResponsePress = (messageId: string): void => {
+    if (!modelId) return;
+
+    const completePayload = prepareCompleteChatPayload({
+      chatId,
+      messages,
+      messageId: messageId,
+      sessionId: socketService.socketSessionId,
+      model: modelId,
+    });
+    completeChat(completePayload);
+  };
+
   const renderItem = useCallback(
     ({ item, index }: { item: Message; index: number }) => {
       const message = history?.messages[item.id];
       if (!message) return null;
 
+      const isLast = item.id === history?.lastAssistantMessage?.id;
+
       return item.role === Role.ASSISTANT ? (
-        <AiMessageActions message={message} onEditPress={onEditPress}>
+        <AiMessageActions
+          message={message}
+          onEditPress={onEditPress}
+          onContinueResponsePress={handleContinueResponsePress}
+          isLast={isLast}>
           <ChatAiMessage
             message={message}
             onEditPress={() => handleEditPress(index, message.id, message.content)}
@@ -144,7 +175,7 @@ export default function ChatMessagesList({
         </UserMessageActions>
       );
     },
-    [history, onEditPress, editingMessageId, showPreviousSibling, showNextSibling, getSiblingsInfo],
+    [history, onEditPress, editingMessageId, showPreviousSibling, showNextSibling, getSiblingsInfo, modelId],
   );
 
   return (

libs/mobile/shared/ui/ui-kit/src/assets/icons/index.ts

@@ -36,6 +36,7 @@ import microphone from './microphone.svg';
 import moreDots from './more-dots.svg';
 import noWifi from './no-wifi.svg';
 import pin from './pin.svg';
+import play from './play.svg';
 import plusInCircle from './plus-in-circle.svg';
 import plus from './plus.svg';
 import search from './search.svg';
@@ -96,4 +97,5 @@ export const Icons = {
   strokeLeft,
   tick,
   stop,
+  play,
 };

libs/shared/data-access/api/src/lib/chats/models/history.ts

@@ -13,4 +13,14 @@ export class History {
   constructor(history: Partial<History> = {}) {
     Object.assign(this, history);
   }
+
+  public get lastAssistantMessage(): Message | undefined {
+    if (!this.messages) return undefined;
+
+    const assistantMessages = Object.values(this.messages).filter((m) => m.role === 'assistant');
+
+    if (assistantMessages.length === 0) return undefined;
+
+    return assistantMessages.sort((a, b) => b.timestamp - a.timestamp)[0];
+  }
 }

libs/shared/data-access/api/src/lib/chats/utils/patch-chat-message-with-completion.ts

@@ -41,6 +41,7 @@ export function patchChatMessagesWithCompletion(
     ? {
         ...history,
         messages: updatedHistoryMessages,
+        lastAssistantMessage: history?.lastAssistantMessage ?? updatedLastMessage,
       }
     : history;
 

libs/shared/data-access/api/src/lib/chats/utils/patch-completed-message.ts

@@ -36,6 +36,7 @@ export function patchCompletedMessage(oldData: ChatResponse | undefined): ChatRe
     ? {
         ...history,
         messages: updatedHistoryMessages,
+        lastAssistantMessage: history?.lastAssistantMessage ?? updatedLastMessage,
       }
     : history;
 

libs/shared/data-access/api/src/lib/chats/utils/prepare-update-message-in-chat-payload.ts

@@ -17,13 +17,16 @@ export function prepareUpdateMessageInChatPayload(
     msg.id === messageId ? { ...messagesMap[messageId] } : msg,
   );
 
+  const lastAssistantMessage = oldData.chat.history.lastAssistantMessage;
+
   const newChatData: ChatResponse = {
     ...oldData,
     chat: {
       ...oldData.chat,
       history: {
         ...oldData.chat.history,
         messages: messagesMap,
+        lastAssistantMessage,
       },
       messages: messagesArray,
     },