feat: close #2754 add import/export to file

app/components/error.tsx

@@ -4,8 +4,8 @@ import GithubIcon from "../icons/github.svg";
 import ResetIcon from "../icons/reload.svg";
 import { ISSUE_URL } from "../constant";
 import Locale from "../locales";
-import { downloadAs } from "../utils";
 import { showConfirm } from "./ui-lib";
+import { useSyncStore } from "../store/sync";
 
 interface IErrorBoundaryState {
   hasError: boolean;
@@ -26,10 +26,7 @@ export class ErrorBoundary extends React.Component<any, IErrorBoundaryState> {
 
   clearAndSaveData() {
     try {
-      downloadAs(
-        JSON.stringify(localStorage),
-        "chatgpt-next-web-snapshot.json",
-      );
+      useSyncStore.getState().export();
     } finally {
       localStorage.clear();
       location.reload();

app/components/mask.tsx

@@ -410,7 +410,7 @@ export function MaskPage() {
   const closeMaskModal = () => setEditingMaskId(undefined);
 
   const downloadAll = () => {
-    downloadAs(JSON.stringify(masks), FileName.Masks);
+    downloadAs(JSON.stringify(masks.filter((v) => !v.builtin)), FileName.Masks);
   };
 
   const importFromFile = () => {
@@ -452,11 +452,13 @@ export function MaskPage() {
                 icon={<DownloadIcon />}
                 bordered
                 onClick={downloadAll}
+                text={Locale.UI.Export}
               />
             </div>
             <div className="window-action-button">
               <IconButton
                 icon={<UploadIcon />}
+                text={Locale.UI.Import}
                 bordered
                 onClick={() => importFromFile()}
               />
@@ -604,7 +606,7 @@ export function MaskPage() {
             <MaskConfig
               mask={editingMask}
               updateMask={(updater) =>
-                maskStore.update(editingMaskId!, updater)
+                maskStore.updateMask(editingMaskId!, updater)
               }
               readonly={editingMask.builtin}
             />

app/components/settings.tsx

@@ -10,6 +10,9 @@ import ClearIcon from "../icons/clear.svg";
 import LoadingIcon from "../icons/three-dots.svg";
 import EditIcon from "../icons/edit.svg";
 import EyeIcon from "../icons/eye.svg";
+import DownloadIcon from "../icons/download.svg";
+import UploadIcon from "../icons/upload.svg";
+
 import {
   Input,
   List,
@@ -49,6 +52,7 @@ import { Avatar, AvatarPicker } from "./emoji";
 import { getClientConfig } from "../config/client";
 import { useSyncStore } from "../store/sync";
 import { nanoid } from "nanoid";
+import { useMaskStore } from "../store/mask";
 
 function EditPromptModal(props: { id: string; onClose: () => void }) {
   const promptStore = usePromptStore();
@@ -75,7 +79,7 @@ function EditPromptModal(props: { id: string; onClose: () => void }) {
             readOnly={!prompt.isUser}
             className={styles["edit-prompt-title"]}
             onInput={(e) =>
-              promptStore.update(
+              promptStore.updatePrompt(
                 props.id,
                 (prompt) => (prompt.title = e.currentTarget.value),
               )
@@ -87,7 +91,7 @@ function EditPromptModal(props: { id: string; onClose: () => void }) {
             className={styles["edit-prompt-content"]}
             rows={10}
             onInput={(e) =>
-              promptStore.update(
+              promptStore.updatePrompt(
                 props.id,
                 (prompt) => (prompt.content = e.currentTarget.value),
               )
@@ -127,14 +131,15 @@ function UserPromptModal(props: { onClose?: () => void }) {
         actions={[
           <IconButton
             key="add"
-            onClick={() =>
-              promptStore.add({
+            onClick={() => {
+              const promptId = promptStore.add({
                 id: nanoid(),
                 createdAt: Date.now(),
                 title: "Empty Prompt",
                 content: "Empty Prompt Content",
-              })
-            }
+              });
+              setEditingPromptId(promptId);
+            }}
             icon={<AddIcon />}
             bordered
             text={Locale.Settings.Prompt.Modal.Add}
@@ -244,19 +249,31 @@ function DangerItems() {
 function SyncItems() {
   const syncStore = useSyncStore();
   const webdav = syncStore.webDavConfig;
+  const chatStore = useChatStore();
+  const promptStore = usePromptStore();
+  const maskStore = useMaskStore();
+
+  const stateOverview = useMemo(() => {
+    const sessions = chatStore.sessions;
+    const messageCount = sessions.reduce((p, c) => p + c.messages.length, 0);
 
-  // not ready: https://github.com/Yidadaa/ChatGPT-Next-Web/issues/920#issuecomment-1609866332
-  return null;
+    return {
+      chat: sessions.length,
+      message: messageCount,
+      prompt: Object.keys(promptStore.prompts).length,
+      mask: Object.keys(maskStore.masks).length,
+    };
+  }, [chatStore.sessions, maskStore.masks, promptStore.prompts]);
 
   return (
     <List>
       <ListItem
-        title={"上次同步：" + new Date().toLocaleString()}
-        subTitle={"20 次对话，100 条消息，200 提示词，20 面具"}
+        title={Locale.Settings.Sync.LastUpdate}
+        subTitle={new Date().toLocaleString()}
       >
         <IconButton
           icon={<ResetIcon />}
-          text="同步"
+          text={Locale.UI.Sync}
           onClick={() => {
             syncStore.check().then(console.log);
           }}
@@ -264,50 +281,25 @@ function SyncItems() {
       </ListItem>
 
       <ListItem
-        title={"本地备份"}
-        subTitle={"20 次对话，100 条消息，200 提示词，20 面具"}
-      ></ListItem>
-
-      <ListItem
-        title={"Web Dav Server"}
-        subTitle={Locale.Settings.AccessCode.SubTitle}
+        title={Locale.Settings.Sync.LocalState}
+        subTitle={Locale.Settings.Sync.Overview(stateOverview)}
       >
-        <input
-          value={webdav.server}
-          type="text"
-          placeholder={"https://example.com"}
-          onChange={(e) => {
-            syncStore.update(
-              (config) => (config.server = e.currentTarget.value),
-            );
-          }}
-        />
-      </ListItem>
-
-      <ListItem title="Web Dav User Name" subTitle="user name here">
-        <input
-          value={webdav.username}
-          type="text"
-          placeholder={"username"}
-          onChange={(e) => {
-            syncStore.update(
-              (config) => (config.username = e.currentTarget.value),
-            );
-          }}
-        />
-      </ListItem>
-
-      <ListItem title="Web Dav Password" subTitle="password here">
-        <input
-          value={webdav.password}
-          type="text"
-          placeholder={"password"}
-          onChange={(e) => {
-            syncStore.update(
-              (config) => (config.password = e.currentTarget.value),
-            );
-          }}
-        />
+        <div style={{ display: "flex" }}>
+          <IconButton
+            icon={<UploadIcon />}
+            text={Locale.UI.Export}
+            onClick={() => {
+              syncStore.export();
+            }}
+          />
+          <IconButton
+            icon={<DownloadIcon />}
+            text={Locale.UI.Import}
+            onClick={() => {
+              syncStore.import();
+            }}
+          />
+        </div>
       </ListItem>
     </List>
   );
@@ -562,6 +554,8 @@ export function Settings() {
           </ListItem>
         </List>
 
+        <SyncItems />
+
         <List>
           <ListItem
             title={Locale.Settings.Mask.Splash.Title}
@@ -722,8 +716,6 @@ export function Settings() {
           </ListItem>
         </List>
 
-        <SyncItems />
-
         <List>
           <ModelConfigList
             modelConfig={config.modelConfig}

app/locales/cn.ts

@@ -178,6 +178,14 @@ const cn = {
       Title: "自动生成标题",
       SubTitle: "根据对话内容生成合适的标题",
     },
+    Sync: {
+      LastUpdate: "上次同步",
+      LocalState: "本地数据",
+      Overview: (overview: any) => {
+        return `${overview.chat} 次对话，${overview.message} 条消息，${overview.prompt} 条提示词，${overview.mask} 个面具`;
+      },
+      ImportFailed: "导入失败",
+    },
     Mask: {
       Splash: {
         Title: "面具启动页",
@@ -355,6 +363,9 @@ const cn = {
     Close: "关闭",
     Create: "新建",
     Edit: "编辑",
+    Export: "导出",
+    Import: "导入",
+    Sync: "同步",
   },
   Exporter: {
     Model: "模型",

app/store/access.ts

@@ -1,28 +1,7 @@
-import { create } from "zustand";
-import { persist } from "zustand/middleware";
 import { DEFAULT_API_HOST, DEFAULT_MODELS, StoreKey } from "../constant";
 import { getHeaders } from "../client/api";
-import { BOT_HELLO } from "./chat";
 import { getClientConfig } from "../config/client";
-
-export interface AccessControlStore {
-  accessCode: string;
-  token: string;
-
-  needCode: boolean;
-  hideUserApiKey: boolean;
-  hideBalanceQuery: boolean;
-  disableGPT4: boolean;
-
-  openaiUrl: string;
-
-  updateToken: (_: string) => void;
-  updateCode: (_: string) => void;
-  updateOpenAiUrl: (_: string) => void;
-  enabledAccessControl: () => boolean;
-  isAuthorized: () => boolean;
-  fetch: () => void;
-}
+import { createPersistStore } from "../utils/store";
 
 let fetchState = 0; // 0 not fetch, 1 fetching, 2 done
 
@@ -30,72 +9,74 @@ const DEFAULT_OPENAI_URL =
   getClientConfig()?.buildMode === "export" ? DEFAULT_API_HOST : "/api/openai/";
 console.log("[API] default openai url", DEFAULT_OPENAI_URL);
 
-export const useAccessStore = create<AccessControlStore>()(
-  persist(
-    (set, get) => ({
-      token: "",
-      accessCode: "",
-      needCode: true,
-      hideUserApiKey: false,
-      hideBalanceQuery: false,
-      disableGPT4: false,
+const DEFAULT_ACCESS_STATE = {
+  token: "",
+  accessCode: "",
+  needCode: true,
+  hideUserApiKey: false,
+  hideBalanceQuery: false,
+  disableGPT4: false,
 
-      openaiUrl: DEFAULT_OPENAI_URL,
+  openaiUrl: DEFAULT_OPENAI_URL,
+};
 
-      enabledAccessControl() {
-        get().fetch();
+export const useAccessStore = createPersistStore(
+  { ...DEFAULT_ACCESS_STATE },
 
-        return get().needCode;
-      },
-      updateCode(code: string) {
-        set(() => ({ accessCode: code?.trim() }));
-      },
-      updateToken(token: string) {
-        set(() => ({ token: token?.trim() }));
-      },
-      updateOpenAiUrl(url: string) {
-        set(() => ({ openaiUrl: url?.trim() }));
-      },
-      isAuthorized() {
-        get().fetch();
+  (set, get) => ({
+    enabledAccessControl() {
+      this.fetch();
 
-        // has token or has code or disabled access control
-        return (
-          !!get().token || !!get().accessCode || !get().enabledAccessControl()
-        );
-      },
-      fetch() {
-        if (fetchState > 0 || getClientConfig()?.buildMode === "export") return;
-        fetchState = 1;
-        fetch("/api/config", {
-          method: "post",
-          body: null,
-          headers: {
-            ...getHeaders(),
-          },
-        })
-          .then((res) => res.json())
-          .then((res: DangerConfig) => {
-            console.log("[Config] got config from server", res);
-            set(() => ({ ...res }));
+      return get().needCode;
+    },
+    updateCode(code: string) {
+      set(() => ({ accessCode: code?.trim() }));
+    },
+    updateToken(token: string) {
+      set(() => ({ token: token?.trim() }));
+    },
+    updateOpenAiUrl(url: string) {
+      set(() => ({ openaiUrl: url?.trim() }));
+    },
+    isAuthorized() {
+      this.fetch();
+
+      // has token or has code or disabled access control
+      return (
+        !!get().token || !!get().accessCode || !this.enabledAccessControl()
+      );
+    },
+    fetch() {
+      if (fetchState > 0 || getClientConfig()?.buildMode === "export") return;
+      fetchState = 1;
+      fetch("/api/config", {
+        method: "post",
+        body: null,
+        headers: {
+          ...getHeaders(),
+        },
+      })
+        .then((res) => res.json())
+        .then((res: DangerConfig) => {
+          console.log("[Config] got config from server", res);
+          set(() => ({ ...res }));
 
-            if (res.disableGPT4) {
-              DEFAULT_MODELS.forEach(
-                (m: any) => (m.available = !m.name.startsWith("gpt-4")),
-              );
-            }
-          })
-          .catch(() => {
-            console.error("[Config] failed to fetch config");
-          })
-          .finally(() => {
-            fetchState = 2;
-          });
-      },
-    }),
-    {
-      name: StoreKey.Access,
-      version: 1,
+          if (res.disableGPT4) {
+            DEFAULT_MODELS.forEach(
+              (m: any) => (m.available = !m.name.startsWith("gpt-4")),
+            );
+          }
+        })
+        .catch(() => {
+          console.error("[Config] failed to fetch config");
+        })
+        .finally(() => {
+          fetchState = 2;
+        });
     },
-  ),
+  }),
+  {
+    name: StoreKey.Access,
+    version: 1,
+  },
 );

app/store/chat.ts

@@ -18,6 +18,7 @@ import { ChatControllerPool } from "../client/controller";
 import { prettyObject } from "../utils/format";
 import { estimateTokenLength } from "../utils/token";
 import { nanoid } from "nanoid";
+import { createPersistStore } from "../utils/store";
 
 export type ChatMessage = RequestMessage & {
   date: string;
@@ -140,12 +141,22 @@ function fillTemplateWith(input: string, modelConfig: ModelConfig) {
   return output;
 }
 
-export const useChatStore = create<ChatStore>()(
-  persist(
-    (set, get) => ({
-      sessions: [createEmptySession()],
-      currentSessionIndex: 0,
+const DEFAULT_CHAT_STATE = {
+  sessions: [createEmptySession()],
+  currentSessionIndex: 0,
+};
 
+export const useChatStore = createPersistStore(
+  DEFAULT_CHAT_STATE,
+  (set, _get) => {
+    function get() {
+      return {
+        ..._get(),
+        ...methods,
+      };
+    }
+
+    const methods = {
       clearSessions() {
         set(() => ({
           sessions: [createEmptySession()],
@@ -184,7 +195,7 @@ export const useChatStore = create<ChatStore>()(
         });
       },
 
-      newSession(mask) {
+      newSession(mask: Mask) {
         const session = createEmptySession();
 
         if (mask) {
@@ -207,14 +218,14 @@ export const useChatStore = create<ChatStore>()(
         }));
       },
 
-      nextSession(delta) {
+      nextSession(delta: number) {
         const n = get().sessions.length;
         const limit = (x: number) => (x + n) % n;
         const i = get().currentSessionIndex;
         get().selectSession(limit(i + delta));
       },
 
-      deleteSession(index) {
+      deleteSession(index: number) {
         const deletingLastSession = get().sessions.length === 1;
         const deletedSession = get().sessions.at(index);
 
@@ -271,7 +282,7 @@ export const useChatStore = create<ChatStore>()(
         return session;
       },
 
-      onNewMessage(message) {
+      onNewMessage(message: ChatMessage) {
         get().updateCurrentSession((session) => {
           session.messages = session.messages.concat();
           session.lastUpdate = Date.now();
@@ -280,7 +291,7 @@ export const useChatStore = create<ChatStore>()(
         get().summarizeSession();
       },
 
-      async onUserInput(content) {
+      async onUserInput(content: string) {
         const session = get().currentSession();
         const modelConfig = session.mask.modelConfig;
 
@@ -580,14 +591,14 @@ export const useChatStore = create<ChatStore>()(
         }
       },
 
-      updateStat(message) {
+      updateStat(message: ChatMessage) {
         get().updateCurrentSession((session) => {
           session.stat.charCount += message.content.length;
           // TODO: should update chat count and word count
         });
       },
 
-      updateCurrentSession(updater) {
+      updateCurrentSession(updater: (session: ChatSession) => void) {
         const sessions = get().sessions;
         const index = get().currentSessionIndex;
         updater(sessions[index]);
@@ -598,56 +609,60 @@ export const useChatStore = create<ChatStore>()(
         localStorage.clear();
         location.reload();
       },
-    }),
-    {
-      name: StoreKey.Chat,
-      version: 3.1,
-      migrate(persistedState, version) {
-        const state = persistedState as any;
-        const newState = JSON.parse(JSON.stringify(state)) as ChatStore;
-
-        if (version < 2) {
-          newState.sessions = [];
-
-          const oldSessions = state.sessions;
-          for (const oldSession of oldSessions) {
-            const newSession = createEmptySession();
-            newSession.topic = oldSession.topic;
-            newSession.messages = [...oldSession.messages];
-            newSession.mask.modelConfig.sendMemory = true;
-            newSession.mask.modelConfig.historyMessageCount = 4;
-            newSession.mask.modelConfig.compressMessageLengthThreshold = 1000;
-            newState.sessions.push(newSession);
-          }
-        }
-
-        if (version < 3) {
-          // migrate id to nanoid
-          newState.sessions.forEach((s) => {
-            s.id = nanoid();
-            s.messages.forEach((m) => (m.id = nanoid()));
-          });
+    };
+
+    return methods;
+  },
+  {
+    name: StoreKey.Chat,
+    version: 3.1,
+    migrate(persistedState, version) {
+      const state = persistedState as any;
+      const newState = JSON.parse(
+        JSON.stringify(state),
+      ) as typeof DEFAULT_CHAT_STATE;
+
+      if (version < 2) {
+        newState.sessions = [];
+
+        const oldSessions = state.sessions;
+        for (const oldSession of oldSessions) {
+          const newSession = createEmptySession();
+          newSession.topic = oldSession.topic;
+          newSession.messages = [...oldSession.messages];
+          newSession.mask.modelConfig.sendMemory = true;
+          newSession.mask.modelConfig.historyMessageCount = 4;
+          newSession.mask.modelConfig.compressMessageLengthThreshold = 1000;
+          newState.sessions.push(newSession);
         }
+      }
 
-        // Enable `enableInjectSystemPrompts` attribute for old sessions.
-        // Resolve issue of old sessions not automatically enabling.
-        if (version < 3.1) {
-          newState.sessions.forEach((s) => {
-            if (
-              // Exclude those already set by user
-              !s.mask.modelConfig.hasOwnProperty("enableInjectSystemPrompts")
-            ) {
-              // Because users may have changed this configuration,
-              // the user's current configuration is used instead of the default
-              const config = useAppConfig.getState();
-              s.mask.modelConfig.enableInjectSystemPrompts =
-                config.modelConfig.enableInjectSystemPrompts;
-            }
-          });
-        }
+      if (version < 3) {
+        // migrate id to nanoid
+        newState.sessions.forEach((s) => {
+          s.id = nanoid();
+          s.messages.forEach((m) => (m.id = nanoid()));
+        });
+      }
+
+      // Enable `enableInjectSystemPrompts` attribute for old sessions.
+      // Resolve issue of old sessions not automatically enabling.
+      if (version < 3.1) {
+        newState.sessions.forEach((s) => {
+          if (
+            // Exclude those already set by user
+            !s.mask.modelConfig.hasOwnProperty("enableInjectSystemPrompts")
+          ) {
+            // Because users may have changed this configuration,
+            // the user's current configuration is used instead of the default
+            const config = useAppConfig.getState();
+            s.mask.modelConfig.enableInjectSystemPrompts =
+              config.modelConfig.enableInjectSystemPrompts;
+          }
+        });
+      }
 
-        return newState;
-      },
+      return newState as any;
     },
-  ),
+  },
 );

app/store/config.ts

@@ -3,6 +3,7 @@ import { persist } from "zustand/middleware";
 import { LLMModel } from "../client/api";
 import { getClientConfig } from "../config/client";
 import { DEFAULT_INPUT_TEMPLATE, DEFAULT_MODELS, StoreKey } from "../constant";
+import { createPersistStore } from "../utils/store";
 
 export type ModelType = (typeof DEFAULT_MODELS)[number]["name"];
 
@@ -21,6 +22,8 @@ export enum Theme {
 }
 
 export const DEFAULT_CONFIG = {
+  lastUpdate: Date.now(), // timestamp, to merge state
+
   submitKey: SubmitKey.CtrlEnter as SubmitKey,
   avatar: "1f603",
   fontSize: 14,
@@ -55,13 +58,6 @@ export const DEFAULT_CONFIG = {
 
 export type ChatConfig = typeof DEFAULT_CONFIG;
 
-export type ChatConfigStore = ChatConfig & {
-  reset: () => void;
-  update: (updater: (config: ChatConfig) => void) => void;
-  mergeModels: (newModels: LLMModel[]) => void;
-  allModels: () => LLMModel[];
-};
-
 export type ModelConfig = ChatConfig["modelConfig"];
 
 export function limitNumber(
@@ -98,85 +94,80 @@ export const ModalConfigValidator = {
   },
 };
 
-export const useAppConfig = create<ChatConfigStore>()(
-  persist(
-    (set, get) => ({
-      ...DEFAULT_CONFIG,
-
-      reset() {
-        set(() => ({ ...DEFAULT_CONFIG }));
-      },
-
-      update(updater) {
-        const config = { ...get() };
-        updater(config);
-        set(() => config);
-      },
-
-      mergeModels(newModels) {
-        if (!newModels || newModels.length === 0) {
-          return;
-        }
-
-        const oldModels = get().models;
-        const modelMap: Record<string, LLMModel> = {};
-
-        for (const model of oldModels) {
-          model.available = false;
-          modelMap[model.name] = model;
-        }
-
-        for (const model of newModels) {
-          model.available = true;
-          modelMap[model.name] = model;
-        }
-
-        set(() => ({
-          models: Object.values(modelMap),
-        }));
-      },
-
-      allModels() {
-        const customModels = get()
-          .customModels.split(",")
-          .filter((v) => !!v && v.length > 0)
-          .map((m) => ({ name: m, available: true }));
-
-        const models = get().models.concat(customModels);
-        return models;
-      },
-    }),
-    {
-      name: StoreKey.Config,
-      version: 3.7,
-      migrate(persistedState, version) {
-        const state = persistedState as ChatConfig;
-
-        if (version < 3.4) {
-          state.modelConfig.sendMemory = true;
-          state.modelConfig.historyMessageCount = 4;
-          state.modelConfig.compressMessageLengthThreshold = 1000;
-          state.modelConfig.frequency_penalty = 0;
-          state.modelConfig.top_p = 1;
-          state.modelConfig.template = DEFAULT_INPUT_TEMPLATE;
-          state.dontShowMaskSplashScreen = false;
-          state.hideBuiltinMasks = false;
-        }
-
-        if (version < 3.5) {
-          state.customModels = "claude,claude-100k";
-        }
-
-        if (version < 3.6) {
-          state.modelConfig.enableInjectSystemPrompts = true;
-        }
-
-        if (version < 3.7) {
-          state.enableAutoGenerateTitle = true;
-        }
-
-        return state as any;
-      },
+export const useAppConfig = createPersistStore(
+  { ...DEFAULT_CONFIG },
+  (set, get) => ({
+    reset() {
+      set(() => ({ ...DEFAULT_CONFIG }));
+    },
+
+    mergeModels(newModels: LLMModel[]) {
+      if (!newModels || newModels.length === 0) {
+        return;
+      }
+
+      const oldModels = get().models;
+      const modelMap: Record<string, LLMModel> = {};
+
+      for (const model of oldModels) {
+        model.available = false;
+        modelMap[model.name] = model;
+      }
+
+      for (const model of newModels) {
+        model.available = true;
+        modelMap[model.name] = model;
+      }
+
+      set(() => ({
+        models: Object.values(modelMap),
+      }));
     },
-  ),
+
+    allModels() {
+      const customModels = get()
+        .customModels.split(",")
+        .filter((v) => !!v && v.length > 0)
+        .map((m) => ({ name: m, available: true }));
+
+      const models = get().models.concat(customModels);
+      return models;
+    },
+  }),
+  {
+    name: StoreKey.Config,
+    version: 3.8,
+    migrate(persistedState, version) {
+      const state = persistedState as ChatConfig;
+
+      if (version < 3.4) {
+        state.modelConfig.sendMemory = true;
+        state.modelConfig.historyMessageCount = 4;
+        state.modelConfig.compressMessageLengthThreshold = 1000;
+        state.modelConfig.frequency_penalty = 0;
+        state.modelConfig.top_p = 1;
+        state.modelConfig.template = DEFAULT_INPUT_TEMPLATE;
+        state.dontShowMaskSplashScreen = false;
+        state.hideBuiltinMasks = false;
+      }
+
+      if (version < 3.5) {
+        state.customModels = "claude,claude-100k";
+      }
+
+      if (version < 3.6) {
+        state.modelConfig.enableInjectSystemPrompts = true;
+      }
+
+      if (version < 3.7) {
+        state.enableAutoGenerateTitle = true;
+      }
+
+      if (version < 3.8) {
+        state.lastUpdate = Date.now();
+      }
+
+      return state as any;
+    },
+  },
 );

app/store/mask.ts

@@ -1,11 +1,10 @@
-import { create } from "zustand";
-import { persist } from "zustand/middleware";
 import { BUILTIN_MASKS } from "../masks";
 import { getLang, Lang } from "../locales";
 import { DEFAULT_TOPIC, ChatMessage } from "./chat";
 import { ModelConfig, useAppConfig } from "./config";
 import { StoreKey } from "../constant";
 import { nanoid } from "nanoid";
+import { createPersistStore } from "../utils/store";
 
 export type Mask = {
   id: string;
@@ -25,14 +24,6 @@ export const DEFAULT_MASK_STATE = {
 };
 
 export type MaskState = typeof DEFAULT_MASK_STATE;
-type MaskStore = MaskState & {
-  create: (mask?: Partial<Mask>) => Mask;
-  update: (id: string, updater: (mask: Mask) => void) => void;
-  delete: (id: string) => void;
-  search: (text: string) => Mask[];
-  get: (id?: string) => Mask | null;
-  getAll: () => Mask[];
-};
 
 export const DEFAULT_MASK_AVATAR = "gpt-bot";
 export const createEmptyMask = () =>
@@ -46,89 +37,92 @@ export const createEmptyMask = () =>
     lang: getLang(),
     builtin: false,
     createdAt: Date.now(),
-  } as Mask);
+  }) as Mask;
+
+export const useMaskStore = createPersistStore(
+  { ...DEFAULT_MASK_STATE },
 
-export const useMaskStore = create<MaskStore>()(
-  persist(
-    (set, get) => ({
-      ...DEFAULT_MASK_STATE,
+  (set, get) => ({
+    ...DEFAULT_MASK_STATE,
 
-      create(mask) {
-        const masks = get().masks;
-        const id = nanoid();
-        masks[id] = {
-          ...createEmptyMask(),
-          ...mask,
-          id,
-          builtin: false,
-        };
+    create(mask?: Partial<Mask>) {
+      const masks = get().masks;
+      const id = nanoid();
+      masks[id] = {
+        ...createEmptyMask(),
+        ...mask,
+        id,
+        builtin: false,
+      };
 
-        set(() => ({ masks }));
+      set(() => ({ masks }));
+      get().markUpdate();
 
-        return masks[id];
-      },
-      update(id, updater) {
-        const masks = get().masks;
-        const mask = masks[id];
-        if (!mask) return;
-        const updateMask = { ...mask };
-        updater(updateMask);
-        masks[id] = updateMask;
-        set(() => ({ masks }));
-      },
-      delete(id) {
-        const masks = get().masks;
-        delete masks[id];
-        set(() => ({ masks }));
-      },
+      return masks[id];
+    },
+    updateMask(id: string, updater: (mask: Mask) => void) {
+      const masks = get().masks;
+      const mask = masks[id];
+      if (!mask) return;
+      const updateMask = { ...mask };
+      updater(updateMask);
+      masks[id] = updateMask;
+      set(() => ({ masks }));
+      get().markUpdate();
+    },
+    delete(id: string) {
+      const masks = get().masks;
+      delete masks[id];
+      set(() => ({ masks }));
+      get().markUpdate();
+    },
 
-      get(id) {
-        return get().masks[id ?? 1145141919810];
-      },
-      getAll() {
-        const userMasks = Object.values(get().masks).sort(
-          (a, b) => b.createdAt - a.createdAt,
-        );
-        const config = useAppConfig.getState();
-        if (config.hideBuiltinMasks) return userMasks;
-        const buildinMasks = BUILTIN_MASKS.map(
-          (m) =>
-            ({
-              ...m,
-              modelConfig: {
-                ...config.modelConfig,
-                ...m.modelConfig,
-              },
-            } as Mask),
-        );
-        return userMasks.concat(buildinMasks);
-      },
-      search(text) {
-        return Object.values(get().masks);
-      },
-    }),
-    {
-      name: StoreKey.Mask,
-      version: 3.1,
+    get(id?: string) {
+      return get().masks[id ?? 1145141919810];
+    },
+    getAll() {
+      const userMasks = Object.values(get().masks).sort(
+        (a, b) => b.createdAt - a.createdAt,
+      );
+      const config = useAppConfig.getState();
+      if (config.hideBuiltinMasks) return userMasks;
+      const buildinMasks = BUILTIN_MASKS.map(
+        (m) =>
+          ({
+            ...m,
+            modelConfig: {
+              ...config.modelConfig,
+              ...m.modelConfig,
+            },
+          }) as Mask,
+      );
+      return userMasks.concat(buildinMasks);
+    },
+    search(text: string) {
+      return Object.values(get().masks);
+    },
+  }),
+  {
+    name: StoreKey.Mask,
+    version: 3.1,
 
-      migrate(state, version) {
-        const newState = JSON.parse(JSON.stringify(state)) as MaskState;
+    migrate(state, version) {
+      const newState = JSON.parse(JSON.stringify(state)) as MaskState;
 
-        // migrate mask id to nanoid
-        if (version < 3) {
-          Object.values(newState.masks).forEach((m) => (m.id = nanoid()));
-        }
+      // migrate mask id to nanoid
+      if (version < 3) {
+        Object.values(newState.masks).forEach((m) => (m.id = nanoid()));
+      }
 
-        if (version < 3.1) {
-          const updatedMasks: Record<string, Mask> = {};
-          Object.values(newState.masks).forEach((m) => {
-            updatedMasks[m.id] = m;
-          });
-          newState.masks = updatedMasks;
-        }
+      if (version < 3.1) {
+        const updatedMasks: Record<string, Mask> = {};
+        Object.values(newState.masks).forEach((m) => {
+          updatedMasks[m.id] = m;
+        });
+        newState.masks = updatedMasks;
+      }
 
-        return newState as any;
-      },
+      return newState as any;
     },
-  ),
+  },
 );

app/store/prompt.ts

@@ -1,9 +1,8 @@
-import { create } from "zustand";
-import { persist } from "zustand/middleware";
 import Fuse from "fuse.js";
 import { getLang } from "../locales";
 import { StoreKey } from "../constant";
 import { nanoid } from "nanoid";
+import { createPersistStore } from "../utils/store";
 
 export interface Prompt {
   id: string;
@@ -13,19 +12,6 @@ export interface Prompt {
   createdAt: number;
 }
 
-export interface PromptStore {
-  counter: number;
-  prompts: Record<string, Prompt>;
-
-  add: (prompt: Prompt) => string;
-  get: (id: string) => Prompt | undefined;
-  remove: (id: string) => void;
-  search: (text: string) => Prompt[];
-  update: (id: string, updater: (prompt: Prompt) => void) => void;
-
-  getUserPrompts: () => Prompt[];
-}
-
 export const SearchService = {
   ready: false,
   builtinEngine: new Fuse<Prompt>([], { keys: ["title"] }),
@@ -62,130 +48,136 @@ export const SearchService = {
   },
 };
 
-export const usePromptStore = create<PromptStore>()(
-  persist(
-    (set, get) => ({
-      counter: 0,
-      latestId: 0,
-      prompts: {},
-
-      add(prompt) {
-        const prompts = get().prompts;
-        prompt.id = nanoid();
-        prompt.isUser = true;
-        prompt.createdAt = Date.now();
-        prompts[prompt.id] = prompt;
-
-        set(() => ({
-          latestId: prompt.id!,
-          prompts: prompts,
-        }));
-
-        return prompt.id!;
-      },
-
-      get(id) {
-        const targetPrompt = get().prompts[id];
-
-        if (!targetPrompt) {
-          return SearchService.builtinPrompts.find((v) => v.id === id);
-        }
+export const usePromptStore = createPersistStore(
+  {
+    counter: 0,
+    prompts: {} as Record<string, Prompt>,
+  },
 
-        return targetPrompt;
-      },
-
-      remove(id) {
-        const prompts = get().prompts;
-        delete prompts[id];
-        SearchService.remove(id);
-
-        set(() => ({
-          prompts,
-          counter: get().counter + 1,
-        }));
-      },
-
-      getUserPrompts() {
-        const userPrompts = Object.values(get().prompts ?? {});
-        userPrompts.sort((a, b) =>
-          b.id && a.id ? b.createdAt - a.createdAt : 0,
-        );
-        return userPrompts;
-      },
-
-      update(id, updater) {
-        const prompt = get().prompts[id] ?? {
-          title: "",
-          content: "",
-          id,
-        };
-
-        SearchService.remove(id);
-        updater(prompt);
-        const prompts = get().prompts;
-        prompts[id] = prompt;
-        set(() => ({ prompts }));
-        SearchService.add(prompt);
-      },
-
-      search(text) {
-        if (text.length === 0) {
-          // return all rompts
-          return get().getUserPrompts().concat(SearchService.builtinPrompts);
-        }
-        return SearchService.search(text) as Prompt[];
-      },
-    }),
-    {
-      name: StoreKey.Prompt,
-      version: 3,
-
-      migrate(state, version) {
-        const newState = JSON.parse(JSON.stringify(state)) as PromptStore;
-
-        if (version < 3) {
-          Object.values(newState.prompts).forEach((p) => (p.id = nanoid()));
+  (set, get) => ({
+    add(prompt: Prompt) {
+      const prompts = get().prompts;
+      prompt.id = nanoid();
+      prompt.isUser = true;
+      prompt.createdAt = Date.now();
+      prompts[prompt.id] = prompt;
+
+      set(() => ({
+        prompts: prompts,
+      }));
+
+      return prompt.id!;
+    },
+
+    get(id: string) {
+      const targetPrompt = get().prompts[id];
+
+      if (!targetPrompt) {
+        return SearchService.builtinPrompts.find((v) => v.id === id);
+      }
+
+      return targetPrompt;
+    },
+
+    remove(id: string) {
+      const prompts = get().prompts;
+      delete prompts[id];
+
+      Object.entries(prompts).some(([key, prompt]) => {
+        if (prompt.id === id) {
+          delete prompts[key];
+          return true;
         }
+        return false;
+      });
 
-        return newState;
-      },
-
-      onRehydrateStorage(state) {
-        const PROMPT_URL = "./prompts.json";
-
-        type PromptList = Array<[string, string]>;
-
-        fetch(PROMPT_URL)
-          .then((res) => res.json())
-          .then((res) => {
-            let fetchPrompts = [res.en, res.cn];
-            if (getLang() === "cn") {
-              fetchPrompts = fetchPrompts.reverse();
-            }
-            const builtinPrompts = fetchPrompts.map(
-              (promptList: PromptList) => {
-                return promptList.map(
-                  ([title, content]) =>
-                    ({
-                      id: nanoid(),
-                      title,
-                      content,
-                      createdAt: Date.now(),
-                    } as Prompt),
-                );
-              },
-            );
+      SearchService.remove(id);
+
+      set(() => ({
+        prompts,
+        counter: get().counter + 1,
+      }));
+    },
+
+    getUserPrompts() {
+      const userPrompts = Object.values(get().prompts ?? {});
+      userPrompts.sort((a, b) =>
+        b.id && a.id ? b.createdAt - a.createdAt : 0,
+      );
+      return userPrompts;
+    },
+
+    updatePrompt(id: string, updater: (prompt: Prompt) => void) {
+      const prompt = get().prompts[id] ?? {
+        title: "",
+        content: "",
+        id,
+      };
+
+      SearchService.remove(id);
+      updater(prompt);
+      const prompts = get().prompts;
+      prompts[id] = prompt;
+      set(() => ({ prompts }));
+      SearchService.add(prompt);
+    },
+
+    search(text: string) {
+      if (text.length === 0) {
+        // return all rompts
+        return this.getUserPrompts().concat(SearchService.builtinPrompts);
+      }
+      return SearchService.search(text) as Prompt[];
+    },
+  }),
+  {
+    name: StoreKey.Prompt,
+    version: 3,
+
+    migrate(state, version) {
+      const newState = JSON.parse(JSON.stringify(state)) as {
+        prompts: Record<string, Prompt>;
+      };
 
-            const userPrompts =
-              usePromptStore.getState().getUserPrompts() ?? [];
+      if (version < 3) {
+        Object.values(newState.prompts).forEach((p) => (p.id = nanoid()));
+      }
+
+      return newState as any;
+    },
 
-            const allPromptsForSearch = builtinPrompts
-              .reduce((pre, cur) => pre.concat(cur), [])
-              .filter((v) => !!v.title && !!v.content);
-            SearchService.count.builtin = res.en.length + res.cn.length;
-            SearchService.init(allPromptsForSearch, userPrompts);
+    onRehydrateStorage(state) {
+      const PROMPT_URL = "./prompts.json";
+
+      type PromptList = Array<[string, string]>;
+
+      fetch(PROMPT_URL)
+        .then((res) => res.json())
+        .then((res) => {
+          let fetchPrompts = [res.en, res.cn];
+          if (getLang() === "cn") {
+            fetchPrompts = fetchPrompts.reverse();
+          }
+          const builtinPrompts = fetchPrompts.map((promptList: PromptList) => {
+            return promptList.map(
+              ([title, content]) =>
+                ({
+                  id: nanoid(),
+                  title,
+                  content,
+                  createdAt: Date.now(),
+                }) as Prompt,
+            );
           });
-      },
+
+          const userPrompts = usePromptStore.getState().getUserPrompts() ?? [];
+
+          const allPromptsForSearch = builtinPrompts
+            .reduce((pre, cur) => pre.concat(cur), [])
+            .filter((v) => !!v.title && !!v.content);
+          SearchService.count.builtin = res.en.length + res.cn.length;
+          SearchService.init(allPromptsForSearch, userPrompts);
+        });
     },
-  ),
+  },
 );

app/store/sync.ts

@@ -1,7 +1,15 @@
 import { Updater } from "../typing";
-import { create } from "zustand";
-import { persist } from "zustand/middleware";
 import { StoreKey } from "../constant";
+import { createPersistStore } from "../utils/store";
+import {
+  AppState,
+  getLocalAppState,
+  mergeAppState,
+  setLocalAppState,
+} from "../utils/sync";
+import { downloadAs, readFromFile } from "../utils";
+import { showToast } from "../components/ui-lib";
+import Locale from "../locales";
 
 export interface WebDavConfig {
   server: string;
@@ -20,68 +28,86 @@ export interface SyncStore {
   headers: () => { Authorization: string };
 }
 
-const FILE = {
-  root: "/chatgpt-next-web/",
-};
-
-export const useSyncStore = create<SyncStore>()(
-  persist(
-    (set, get) => ({
-      webDavConfig: {
-        server: "",
-        username: "",
-        password: "",
-      },
-
-      lastSyncTime: 0,
-
-      update(updater) {
-        const config = { ...get().webDavConfig };
-        updater(config);
-        set({ webDavConfig: config });
-      },
-
-      async check() {
-        try {
-          const res = await fetch(this.path(""), {
-            method: "PROFIND",
-            headers: this.headers(),
-          });
-          console.log(res);
-          return res.status === 207;
-        } catch (e) {
-          console.error("[Sync] ", e);
-          return false;
-        }
-      },
-
-      path(path: string) {
-        let url = get().webDavConfig.server;
-
-        if (!url.endsWith("/")) {
-          url += "/";
-        }
-
-        if (path.startsWith("/")) {
-          path = path.slice(1);
-        }
-
-        return url + path;
-      },
-
-      headers() {
-        const auth = btoa(
-          [get().webDavConfig.username, get().webDavConfig.password].join(":"),
-        );
-
-        return {
-          Authorization: `Basic ${auth}`,
-        };
-      },
-    }),
-    {
-      name: StoreKey.Sync,
-      version: 1,
+export const useSyncStore = createPersistStore(
+  {
+    webDavConfig: {
+      server: "",
+      username: "",
+      password: "",
     },
-  ),
+
+    lastSyncTime: 0,
+  },
+  (set, get) => ({
+    webDavConfig: {
+      server: "",
+      username: "",
+      password: "",
+    },
+
+    lastSyncTime: 0,
+
+    export() {
+      const state = getLocalAppState();
+      const fileName = `Backup-${new Date().toLocaleString()}.json`;
+      downloadAs(JSON.stringify(state), fileName);
+    },
+
+    async import() {
+      const rawContent = await readFromFile();
+
+      try {
+        const remoteState = JSON.parse(rawContent) as AppState;
+        const localState = getLocalAppState();
+        mergeAppState(localState, remoteState);
+        setLocalAppState(localState);
+        location.reload();
+      } catch (e) {
+        console.error("[Import]", e);
+        showToast(Locale.Settings.Sync.ImportFailed);
+      }
+    },
+
+    async check() {
+      try {
+        const res = await fetch(this.path(""), {
+          method: "PROFIND",
+          headers: this.headers(),
+        });
+        console.log(res);
+        return res.status === 207;
+      } catch (e) {
+        console.error("[Sync] ", e);
+        return false;
+      }
+    },
+
+    path(path: string) {
+      let url = get().webDavConfig.server;
+
+      if (!url.endsWith("/")) {
+        url += "/";
+      }
+
+      if (path.startsWith("/")) {
+        path = path.slice(1);
+      }
+
+      return url + path;
+    },
+
+    headers() {
+      const auth = btoa(
+        [get().webDavConfig.username, get().webDavConfig.password].join(":"),
+      );
+
+      return {
+        Authorization: `Basic ${auth}`,
+      };
+    },
+  }),
+  {
+    name: StoreKey.Sync,
+    version: 1,
+  },
 );

app/store/update.ts

@@ -1,24 +1,7 @@
-import { create } from "zustand";
-import { persist } from "zustand/middleware";
 import { FETCH_COMMIT_URL, FETCH_TAG_URL, StoreKey } from "../constant";
 import { api } from "../client/api";
 import { getClientConfig } from "../config/client";
-
-export interface UpdateStore {
-  versionType: "date" | "tag";
-  lastUpdate: number;
-  version: string;
-  remoteVersion: string;
-
-  used?: number;
-  subscription?: number;
-  lastUpdateUsage: number;
-
-  getLatestVersion: (force?: boolean) => Promise<void>;
-  updateUsage: (force?: boolean) => Promise<void>;
-
-  formatVersion: (version: string) => string;
-}
+import { createPersistStore } from "../utils/store";
 
 const ONE_MINUTE = 60 * 1000;
 
@@ -35,7 +18,9 @@ function formatVersionDate(t: string) {
   ].join("");
 }
 
-async function getVersion(type: "date" | "tag") {
+type VersionType = "date" | "tag";
+
+async function getVersion(type: VersionType) {
   if (type === "date") {
     const data = (await (await fetch(FETCH_COMMIT_URL)).json()) as {
       commit: {
@@ -55,75 +40,76 @@ async function getVersion(type: "date" | "tag") {
   }
 }
 
-export const useUpdateStore = create<UpdateStore>()(
-  persist(
-    (set, get) => ({
-      versionType: "tag",
-      lastUpdate: 0,
-      version: "unknown",
-      remoteVersion: "",
-
-      lastUpdateUsage: 0,
+export const useUpdateStore = createPersistStore(
+  {
+    versionType: "tag" as VersionType,
+    lastUpdate: 0,
+    version: "unknown",
+    remoteVersion: "",
+    used: 0,
+    subscription: 0,
+
+    lastUpdateUsage: 0,
+  },
+  (set, get) => ({
+    formatVersion(version: string) {
+      if (get().versionType === "date") {
+        version = formatVersionDate(version);
+      }
+      return version;
+    },
 
-      formatVersion(version: string) {
-        if (get().versionType === "date") {
-          version = formatVersionDate(version);
-        }
-        return version;
-      },
+    async getLatestVersion(force = false) {
+      const versionType = get().versionType;
+      let version =
+        versionType === "date"
+          ? getClientConfig()?.commitDate
+          : getClientConfig()?.version;
 
-      async getLatestVersion(force = false) {
-        const versionType = get().versionType;
-        let version =
-          versionType === "date"
-            ? getClientConfig()?.commitDate
-            : getClientConfig()?.version;
+      set(() => ({ version }));
 
-        set(() => ({ version }));
+      const shouldCheck = Date.now() - get().lastUpdate > 2 * 60 * ONE_MINUTE;
+      if (!force && !shouldCheck) return;
 
-        const shouldCheck = Date.now() - get().lastUpdate > 2 * 60 * ONE_MINUTE;
-        if (!force && !shouldCheck) return;
+      set(() => ({
+        lastUpdate: Date.now(),
+      }));
 
+      try {
+        const remoteId = await getVersion(versionType);
         set(() => ({
-          lastUpdate: Date.now(),
+          remoteVersion: remoteId,
         }));
+        console.log("[Got Upstream] ", remoteId);
+      } catch (error) {
+        console.error("[Fetch Upstream Commit Id]", error);
+      }
+    },
 
-        try {
-          const remoteId = await getVersion(versionType);
-          set(() => ({
-            remoteVersion: remoteId,
-          }));
-          console.log("[Got Upstream] ", remoteId);
-        } catch (error) {
-          console.error("[Fetch Upstream Commit Id]", error);
-        }
-      },
+    async updateUsage(force = false) {
+      const overOneMinute = Date.now() - get().lastUpdateUsage >= ONE_MINUTE;
+      if (!overOneMinute && !force) return;
 
-      async updateUsage(force = false) {
-        const overOneMinute = Date.now() - get().lastUpdateUsage >= ONE_MINUTE;
-        if (!overOneMinute && !force) return;
+      set(() => ({
+        lastUpdateUsage: Date.now(),
+      }));
 
-        set(() => ({
-          lastUpdateUsage: Date.now(),
-        }));
+      try {
+        const usage = await api.llm.usage();
 
-        try {
-          const usage = await api.llm.usage();
-
-          if (usage) {
-            set(() => ({
-              used: usage.used,
-              subscription: usage.total,
-            }));
-          }
-        } catch (e) {
-          console.error((e as Error).message);
+        if (usage) {
+          set(() => ({
+            used: usage.used,
+            subscription: usage.total,
+          }));
         }
-      },
-    }),
-    {
-      name: StoreKey.Update,
-      version: 1,
+      } catch (e) {
+        console.error((e as Error).message);
+      }
     },
-  ),
+  }),
+  {
+    name: StoreKey.Update,
+    version: 1,
+  },
 );

app/utils/clone.ts

@@ -0,0 +1,3 @@
+export function deepClone<T>(obj: T) {
+  return JSON.parse(JSON.stringify(obj));
+}

app/utils/store.ts

@@ -0,0 +1,55 @@
+import { create } from "zustand";
+import { persist } from "zustand/middleware";
+import { Updater } from "../typing";
+import { deepClone } from "./clone";
+
+type SecondParam<T> = T extends (
+  _f: infer _F,
+  _s: infer S,
+  ...args: infer _U
+) => any
+  ? S
+  : never;
+
+type MakeUpdater<T> = {
+  lastUpdateTime: number;
+
+  markUpdate: () => void;
+  update: Updater<T>;
+};
+
+type SetStoreState<T> = (
+  partial: T | Partial<T> | ((state: T) => T | Partial<T>),
+  replace?: boolean | undefined,
+) => void;
+
+export function createPersistStore<T, M>(
+  defaultState: T,
+  methods: (
+    set: SetStoreState<T & MakeUpdater<T>>,
+    get: () => T & MakeUpdater<T>,
+  ) => M,
+  persistOptions: SecondParam<typeof persist<T & M & MakeUpdater<T>>>,
+) {
+  return create<T & M & MakeUpdater<T>>()(
+    persist((set, get) => {
+      return {
+        ...defaultState,
+        ...methods(set as any, get),
+
+        lastUpdateTime: 0,
+        markUpdate() {
+          set({ lastUpdateTime: Date.now() } as Partial<
+            T & M & MakeUpdater<T>
+          >);
+        },
+        update(updater) {
+          const state = deepClone(get());
+          updater(state);
+          get().markUpdate();
+          set(state);
+        },
+      };
+    }, persistOptions),
+  );
+}

app/utils/sync.ts

@@ -0,0 +1,162 @@
+import {
+  ChatSession,
+  useAccessStore,
+  useAppConfig,
+  useChatStore,
+} from "../store";
+import { useMaskStore } from "../store/mask";
+import { usePromptStore } from "../store/prompt";
+import { StoreKey } from "../constant";
+import { merge } from "./merge";
+
+type NonFunctionKeys<T> = {
+  [K in keyof T]: T[K] extends (...args: any[]) => any ? never : K;
+}[keyof T];
+type NonFunctionFields<T> = Pick<T, NonFunctionKeys<T>>;
+
+export function getNonFunctionFileds<T extends object>(obj: T) {
+  const ret: any = {};
+
+  Object.entries(obj).map(([k, v]) => {
+    if (typeof v !== "function") {
+      ret[k] = v;
+    }
+  });
+
+  return ret as NonFunctionFields<T>;
+}
+
+export type GetStoreState<T> = T extends { getState: () => infer U }
+  ? NonFunctionFields<U>
+  : never;
+
+const LocalStateSetters = {
+  [StoreKey.Chat]: useChatStore.setState,
+  [StoreKey.Access]: useAccessStore.setState,
+  [StoreKey.Config]: useAppConfig.setState,
+  [StoreKey.Mask]: useMaskStore.setState,
+  [StoreKey.Prompt]: usePromptStore.setState,
+} as const;
+
+const LocalStateGetters = {
+  [StoreKey.Chat]: () => getNonFunctionFileds(useChatStore.getState()),
+  [StoreKey.Access]: () => getNonFunctionFileds(useAccessStore.getState()),
+  [StoreKey.Config]: () => getNonFunctionFileds(useAppConfig.getState()),
+  [StoreKey.Mask]: () => getNonFunctionFileds(useMaskStore.getState()),
+  [StoreKey.Prompt]: () => getNonFunctionFileds(usePromptStore.getState()),
+} as const;
+
+export type AppState = {
+  [k in keyof typeof LocalStateGetters]: ReturnType<
+    (typeof LocalStateGetters)[k]
+  >;
+};
+
+type Merger<T extends keyof AppState, U = AppState[T]> = (
+  localState: U,
+  remoteState: U,
+) => U;
+
+type StateMerger = {
+  [K in keyof AppState]: Merger<K>;
+};
+
+// we merge remote state to local state
+const MergeStates: StateMerger = {
+  [StoreKey.Chat]: (localState, remoteState) => {
+    // merge sessions
+    const localSessions: Record<string, ChatSession> = {};
+    localState.sessions.forEach((s) => (localSessions[s.id] = s));
+
+    remoteState.sessions.forEach((remoteSession) => {
+      const localSession = localSessions[remoteSession.id];
+      if (!localSession) {
+        // if remote session is new, just merge it
+        localState.sessions.push(remoteSession);
+      } else {
+        // if both have the same session id, merge the messages
+        const localMessageIds = new Set(localSession.messages.map((v) => v.id));
+        remoteSession.messages.forEach((m) => {
+          if (!localMessageIds.has(m.id)) {
+            localSession.messages.push(m);
+          }
+        });
+
+        // sort local messages with date field in asc order
+        localSession.messages.sort(
+          (a, b) => new Date(a.date).getTime() - new Date(b.date).getTime(),
+        );
+      }
+    });
+
+    // sort local sessions with date field in desc order
+    localState.sessions.sort(
+      (a, b) =>
+        new Date(b.lastUpdate).getTime() - new Date(a.lastUpdate).getTime(),
+    );
+
+    return localState;
+  },
+  [StoreKey.Prompt]: (localState, remoteState) => {
+    localState.prompts = {
+      ...remoteState.prompts,
+      ...localState.prompts,
+    };
+    return localState;
+  },
+  [StoreKey.Mask]: (localState, remoteState) => {
+    localState.masks = {
+      ...remoteState.masks,
+      ...localState.masks,
+    };
+    return localState;
+  },
+  [StoreKey.Config]: mergeWithUpdate<AppState[StoreKey.Config]>,
+  [StoreKey.Access]: mergeWithUpdate<AppState[StoreKey.Access]>,
+};
+
+export function getLocalAppState() {
+  const appState = Object.fromEntries(
+    Object.entries(LocalStateGetters).map(([key, getter]) => {
+      return [key, getter()];
+    }),
+  ) as AppState;
+
+  return appState;
+}
+
+export function setLocalAppState(appState: AppState) {
+  Object.entries(LocalStateSetters).forEach(([key, setter]) => {
+    setter(appState[key as keyof AppState]);
+  });
+}
+
+export function mergeAppState(localState: AppState, remoteState: AppState) {
+  Object.keys(localState).forEach(<T extends keyof AppState>(k: string) => {
+    const key = k as T;
+    const localStoreState = localState[key];
+    const remoteStoreState = remoteState[key];
+    MergeStates[key](localStoreState, remoteStoreState);
+  });
+
+  return localState;
+}
+
+/**
+ * Merge state with `lastUpdateTime`, older state will be override
+ */
+export function mergeWithUpdate<T extends { lastUpdateTime?: number }>(
+  localState: T,
+  remoteState: T,
+) {
+  const localUpdateTime = localState.lastUpdateTime ?? 0;
+  const remoteUpdateTime = localState.lastUpdateTime ?? 1;
+
+  if (localUpdateTime < remoteUpdateTime) {
+    merge(remoteState, localState);
+    return { ...remoteState };
+  } else {
+    merge(localState, remoteState);
+    return { ...localState };
+  }
+}