Added the ability to delete all conversation history at once

packages/cdk/lambda/repository.ts

@@ -461,22 +461,28 @@ export const deleteChat = async (
 
   // Delete Messages
   const messageItems = await listMessages(_chatId);
-  await dynamoDbDocument.send(
-    new BatchWriteCommand({
-      RequestItems: {
-        [TABLE_NAME]: messageItems.map((m) => {
-          return {
-            DeleteRequest: {
-              Key: {
-                id: m.id,
-                createdDate: m.createdDate,
+
+  // Split into chunks of 25 (DynamoDB BatchWrite limit)
+  const chunkSize = 25;
+  for (let i = 0; i < messageItems.length; i += chunkSize) {
+    const chunk = messageItems.slice(i, i + chunkSize);
+    await dynamoDbDocument.send(
+      new BatchWriteCommand({
+        RequestItems: {
+          [TABLE_NAME]: chunk.map((m) => {
+            return {
+              DeleteRequest: {
+                Key: {
+                  id: m.id,
+                  createdDate: m.createdDate,
+                },
               },
-            },
-          };
-        }),
-      },
-    })
-  );
+            };
+          }),
+        },
+      })
+    );
+  }
 };
 
 export const updateSystemContextTitle = async (

packages/web/public/locales/translation/en.yaml

@@ -955,6 +955,12 @@ setting:
     please refer to <1>generative-ai-use-cases</1>.
   items:
     agent_enabled: Agent Enabled
+    delete_all_chats: Delete All Conversation History
+    delete_all_chats_button: Delete All History
+    delete_all_chats_confirmation: Are you sure you want to delete all conversation history? This action cannot be undone.
+    delete_all_chats_deleting: Deleting...
+    delete_all_chats_failed: Failed to delete
+    delete_all_chats_success: All conversation history has been deleted
     language: Language
     language_help: Change display language
     line_break_enter: Press Enter to create new line

packages/web/public/locales/translation/ja.yaml

@@ -781,6 +781,12 @@ setting:
     <1>generative-ai-use-cases</1> をご参照ください。
   items:
     agent_enabled: Agent 有効
+    delete_all_chats: すべての会話履歴を削除
+    delete_all_chats_button: 全会話履歴削除
+    delete_all_chats_confirmation: すべての会話履歴を削除しますか？この操作は取り消すことができません。
+    delete_all_chats_deleting: 削除中...
+    delete_all_chats_failed: 削除に失敗しました
+    delete_all_chats_success: すべての会話履歴を削除しました
     language: 言語設定
     language_help: 表示言語を変更できます
     line_break_enter: Enter で改行

packages/web/public/locales/translation/ko.yaml

@@ -544,6 +544,12 @@ setting:
     <1>generative-ai-use-cases</1>를 참조하세요.
   items:
     agent_enabled: 에이전트 활성화
+    delete_all_chats: 모든 대화 기록 삭제
+    delete_all_chats_button: 전체 대화 기록 삭제
+    delete_all_chats_confirmation: 모든 대화 기록을 삭제하시겠습니까? 이 작업은 취소할 수 없습니다.
+    delete_all_chats_deleting: 삭제 중...
+    delete_all_chats_failed: 삭제에 실패했습니다
+    delete_all_chats_success: 모든 대화 기록이 삭제되었습니다
     language: 언어
     language_help: 표시 언어 변경
     line_break_enter: Enter로 줄바꿈

packages/web/public/locales/translation/th.yaml

@@ -689,6 +689,12 @@ setting:
     การตั้งค่าสามารถเปลี่ยนแปลงได้โดยใช้ <0>AWS CDK</0> ไม่ใช่บนหน้าจอนี้ หากคุณพบข้อผิดพลาดเมื่อใช้ use cases โปรดตรวจสอบว่าคุณได้เปิดใช้งานโมเดลที่ระบุใน {{region}} สำหรับรายละเอียดเกี่ยวกับวิธีการทำเช่นนี้ โปรดดูที่ <1>generative-ai-use-cases</1>
   items:
     agent_enabled: เปิดใช้งานตัวแทน
+    delete_all_chats: ลบประวัติการสนทนาทั้งหมด
+    delete_all_chats_button: ลบประวัติทั้งหมด
+    delete_all_chats_confirmation: คุณแน่ใจหรือไม่ว่าต้องการลบประวัติการสนทนาทั้งหมด? การกระทำนี้ไม่สามารถยกเลิกได้
+    delete_all_chats_deleting: กำลังลบ...
+    delete_all_chats_failed: การลบล้มเหลว
+    delete_all_chats_success: ลบประวัติการสนทนาทั้งหมดแล้ว
     language: ภาษา
     language_help: เปลี่ยนภาษาที่แสดง
     line_break_enter: กด Enter เพื่อขึ้นบรรทัดใหม่

packages/web/public/locales/translation/vi.yaml

@@ -667,6 +667,12 @@ setting:
     <1>generative-ai-use-cases</1>.
   items:
     agent_enabled: Agent được bật
+    delete_all_chats: Xóa tất cả lịch sử hội thoại
+    delete_all_chats_button: Xóa tất cả lịch sử
+    delete_all_chats_confirmation: Bạn có chắc chắn muốn xóa tất cả lịch sử hội thoại không? Hành động này không thể hoàn tác.
+    delete_all_chats_deleting: Đang xóa...
+    delete_all_chats_failed: Xóa thất bại
+    delete_all_chats_success: Đã xóa tất cả lịch sử hội thoại
     language: Cài đặt ngôn ngữ
     language_help: Có thể thay đổi ngôn ngữ hiển thị
     line_break_enter: Nhấn Enter để xuống dòng

packages/web/public/locales/translation/zh.yaml

@@ -563,6 +563,12 @@ setting:
     请务必确认您是否在{{region}}中启用了指定的模型。有关各种方法， 请参考<1>generative-ai-use-cases</1>。
   items:
     agent_enabled: Agent已启用
+    delete_all_chats: 删除所有对话历史
+    delete_all_chats_button: 删除全部历史
+    delete_all_chats_confirmation: 您确定要删除所有对话历史吗？此操作无法撤消。
+    delete_all_chats_deleting: 删除中...
+    delete_all_chats_failed: 删除失败
+    delete_all_chats_success: 已删除所有对话历史
     language: 语言设置
     language_help: 可以更改显示语言
     rag_enabled: RAG (Amazon Kendra)已启用

packages/web/src/components/DialogConfirmDeleteAllChats.tsx

@@ -0,0 +1,36 @@
+import React from 'react';
+import { BaseProps } from '../@types/common';
+import Button from './Button';
+import ModalDialog from './ModalDialog';
+import { useTranslation } from 'react-i18next';
+
+type Props = BaseProps & {
+  isOpen: boolean;
+  onDelete: () => void;
+  onClose: () => void;
+};
+
+const DialogConfirmDeleteAllChats: React.FC<Props> = (props) => {
+  const { t } = useTranslation();
+
+  return (
+    <ModalDialog {...props} title={t('chat.delete_confirmation')}>
+      <div>{t('setting.items.delete_all_chats_confirmation')}</div>
+
+      <div className="mt-4 flex justify-end gap-2">
+        <Button outlined onClick={props.onClose} className="p-2">
+          {t('common.cancel')}
+        </Button>
+        <Button
+          onClick={() => {
+            props.onDelete();
+          }}
+          className="bg-red-500 p-2 text-white">
+          {t('common.delete')}
+        </Button>
+      </div>
+    </ModalDialog>
+  );
+};
+
+export default DialogConfirmDeleteAllChats;

packages/web/src/hooks/useChatApi.ts

@@ -18,6 +18,7 @@ import {
   CreateShareIdResponse,
   FindShareIdResponse,
   GetSharedChatResponse,
+  Chat,
 } from 'generative-ai-use-cases';
 import {
   LambdaClient,
@@ -49,6 +50,29 @@ const useChatApi = () => {
     deleteChat: async (chatId: string) => {
       return http.delete<void>(`chats/${chatId}`);
     },
+    deleteAllChats: async (): Promise<void> => {
+      let exclusiveStartKey: string | undefined = undefined;
+      let hasMore = true;
+
+      while (hasMore) {
+        const url: string = exclusiveStartKey
+          ? `chats?exclusiveStartKey=${exclusiveStartKey}`
+          : 'chats';
+        const res: AxiosResponse<ListChatsResponse> =
+          await http.api.get<ListChatsResponse>(url);
+        const chats = res.data.data;
+
+        // Delete all chats in this page
+        await Promise.all(
+          chats.map((chat: Chat) =>
+            http.delete<void>(`chats/${decomposeId(chat.chatId)}`)
+          )
+        );
+
+        exclusiveStartKey = res.data.lastEvaluatedKey;
+        hasMore = !!exclusiveStartKey;
+      }
+    },
     listChats: () => {
       const getKey = (
         pageIndex: number,

packages/web/src/hooks/useChatList.ts

@@ -4,7 +4,12 @@ import { Chat } from 'generative-ai-use-cases';
 import usePagination from './usePagination';
 
 const useChatList = () => {
-  const { listChats, deleteChat: deleteChatApi, updateTitle } = useChatApi();
+  const {
+    listChats,
+    deleteChat: deleteChatApi,
+    deleteAllChats: deleteAllChatsApi,
+    updateTitle,
+  } = useChatApi();
   const {
     data,
     flattenData: chats,
@@ -40,6 +45,26 @@ const useChatList = () => {
     });
   };
 
+  const deleteAllChats = async () => {
+    // Clear all chats from cache optimistically
+    mutate(
+      produce(data, (draft) => {
+        if (data && draft) {
+          for (const d in data) {
+            draft[d].data = [];
+          }
+        }
+      }),
+      {
+        revalidate: false,
+      }
+    );
+
+    return deleteAllChatsApi().finally(() => {
+      mutate();
+    });
+  };
+
   const updateChatTitle = async (chatId: string, title: string) => {
     mutate(
       produce(data, (draft) => {
@@ -83,6 +108,7 @@ const useChatList = () => {
     mutate,
     updateChatTitle,
     deleteChat,
+    deleteAllChats,
     getChatTitle,
     canLoadMore,
     loadMore,

packages/web/src/pages/Setting.tsx

@@ -9,10 +9,12 @@ import { MODELS } from '../hooks/useModel';
 import useGitHub, { PullRequest } from '../hooks/useGitHub';
 import { PiGithubLogoFill, PiArrowSquareOut } from 'react-icons/pi';
 import { useAuthenticator } from '@aws-amplify/ui-react';
-import { useCallback } from 'react';
+import { useCallback, useState } from 'react';
 import { useSWRConfig } from 'swr';
 import { useTranslation, Trans } from 'react-i18next';
 import { supportedLngs } from '../i18n/config';
+import useChatList from '../hooks/useChatList';
+import DialogConfirmDeleteAllChats from '../components/DialogConfirmDeleteAllChats';
 
 const ragEnabled: boolean = import.meta.env.VITE_APP_RAG_ENABLED === 'true';
 const ragKnowledgeBaseEnabled: boolean =
@@ -52,6 +54,8 @@ const Setting = () => {
   const { getClosedPullRequests } = useGitHub();
   const { signOut } = useAuthenticator();
   const { i18n, t } = useTranslation();
+  const { deleteAllChats } = useChatList();
+  const [isDeleteAllDialogOpen, setIsDeleteAllDialogOpen] = useState(false);
 
   const localVersion = getLocalVersion();
   const hasUpdate = getHasUpdate();
@@ -77,6 +81,15 @@ const Setting = () => {
     signOut();
   }, [cache, signOut]);
 
+  const onClickDeleteAllChats = useCallback(async () => {
+    try {
+      await deleteAllChats();
+      setIsDeleteAllDialogOpen(false);
+    } catch (error) {
+      console.error('Failed to delete all chats:', error);
+    }
+  }, [deleteAllChats]);
+
   return (
     <div className="px-12 lg:px-32 xl:px-64">
       {hasUpdate && (
@@ -169,6 +182,16 @@ const Setting = () => {
             />
           }></SettingItem>
 
+        <SettingItem
+          name={t('setting.items.delete_all_chats')}
+          value={
+            <Button
+              onClick={() => setIsDeleteAllDialogOpen(true)}
+              className="bg-red-500 text-white">
+              {t('setting.items.delete_all_chats_button')}
+            </Button>
+          }></SettingItem>
+
         <SettingItem
           name={t('setting.items.login_status')}
           value={
@@ -281,6 +304,12 @@ const Setting = () => {
           </a>
         </div>
       </div>
+
+      <DialogConfirmDeleteAllChats
+        isOpen={isDeleteAllDialogOpen}
+        onDelete={onClickDeleteAllChats}
+        onClose={() => setIsDeleteAllDialogOpen(false)}
+      />
     </div>
   );
 };