diff --git a/README.md b/README.md
index b5e9182..203f148 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,3 @@
 # Post to Akkoma
 
-Write new post and send it to Akkoma
\ No newline at end of file
+Write a new post and send it to Akkoma
\ No newline at end of file
diff --git a/package.json b/package.json
index 0171800..669b461 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
       "placeholder": "such as: example.dev"
     },
     {
-      "name": "defaultVisbility",
+      "name": "defaultVisibility",
       "type": "dropdown",
       "required": false,
       "data": [
@@ -36,17 +36,21 @@
           "title": "🌎 Public",
           "value": "public"
         },
-        {
-          "title": "👥 Private",
-          "value": "private"
-        },
         {
           "title": "🙈 Unlist",
           "value": "unlist"
         },
+        {
+          "title": "👥 Private",
+          "value": "private"
+        },
         {
           "title": "✉️ Direct",
           "value": "direct"
+        },
+        {
+          "title": "📍 Local",
+          "value": "local"
         }
       ],
       "title": "Akkoma instance's URL",
diff --git a/src/api.ts b/src/api.ts
new file mode 100644
index 0000000..1c1a3d3
--- /dev/null
+++ b/src/api.ts
@@ -0,0 +1,75 @@
+import fetch from "node-fetch";
+import { OAuth, getPreferenceValues } from "@raycast/api";
+import { AppResponse, Preference, Status } from "./types";
+import { authorize } from "./oauth";
+
+export const fetchToken = async (params: URLSearchParams, errorMessage: string): Promise<OAuth.TokenResponse> => {
+  const { instance } = getPreferenceValues<Preference>();
+
+  const response = await fetch(`https://${instance}/oauth/token`, {
+    method: "POST",
+    body: params,
+  });
+
+  if (!response.ok) {
+    console.error(errorMessage, await response.text());
+    throw new Error(response.statusText);
+  }
+
+  return (await response.json()) as OAuth.TokenResponse;
+};
+
+export const createApp = async (): Promise<AppResponse> => {
+  const { instance } = getPreferenceValues<Preference>();
+
+  const response = await fetch(`https://${instance}/api/v1/apps`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+    },
+    body: JSON.stringify({
+      client_name: "raycast-akkoma-extension",
+      redirect_uris: "https://raycast.com/redirect?packageName=Extension",
+      scopes: "read write push",
+      website: "https://raycast.com",
+    }),
+  });
+
+  if (!response.ok) {
+    throw new Error("Failed to create Akkoma app");
+  }
+
+  return (await response.json()) as AppResponse;
+};
+
+export const postNewStatus = async <T>({
+  status,
+  visibility,
+  spoiler_text,
+  sensitive,
+  scheduled_at,
+}: Status): Promise<T> => {
+  const { instance } = getPreferenceValues<Preference>();
+  const token = await authorize();
+
+  const response = await fetch(`https://${instance}/api/v1/statuses`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: "Bearer" + token,
+    },
+    body: JSON.stringify({
+      status,
+      visibility,
+      spoiler_text,
+      sensitive,
+      scheduled_at,
+    }),
+  });
+
+  if (!response.ok) {
+    throw new Error("Failed to pulish new status");
+  }
+
+  return (await response.json()) as T;
+};
diff --git a/src/index.tsx b/src/index.tsx
index a0f8eb7..c770f75 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -1,78 +1,51 @@
-import { useCallback, useEffect } from "react";
+import { useEffect } from "react";
 import { Form, ActionPanel, Action, showToast } from "@raycast/api";
-import { authorize, client } from "./oauth";
-import fetch from "node-fetch";
-import { getPreferenceValues } from "@raycast/api";
-import { Preference,ApiResponse } from "./types";
-
-type Values = {
-  textfield: string;
-  textarea: string;
-  datepicker: Date;
-  sensitive: boolean;
-  dropdown: string;
-  files: { name: string; url: string }[];
-};
+import { authorize } from "./oauth";
+import { postNewStatus } from "./api";
+import { Status, VisibilityOption } from "./types";
 
 export default function Command() {
-  const { instance } = getPreferenceValues<Preference>();
-
   useEffect(() => {
     authorize();
   }, []);
 
-  const handleSubmit = useCallback(
-    async (values: Values) => {
-      try {
-        const token = await client.getTokens();
-
-        const response = await fetch(`https://${instance}/api/v1/statuses`, {
-          method: "POST",
-          headers: {
-            "Content-Type": "application/json",
-            "Authorization": `Bearer ${token?.accessToken}`,
-          },
-          body: JSON.stringify({
-            status: values.textarea,
-            visibility: values.dropdown,
-            spoiler_text: values.textfield,
-            sensitive: values.sensitive,
-            scheduled_at: values.datepicker.toISOString(),
-          }),
-        });
-        const data = (await response.json()) as ApiResponse;
-        console.log(data);
-        showToast({ title: "Submitted form", message: "Status has been posted!" });
-      } catch (error) {
-        console.error(error);
-        showToast({ title: "Error", message: "Something went wrong!" });
-      }
-    },
-    [instance]
-  );
+   const visibilityOptions: VisibilityOption[] = [
+     { value: "direct", title: "Direct" },
+     { value: "private", title: "Private" },
+     { value: "unlisted", title: "Unlisted" },
+     { value: "public", title: "Public" },
+     { value: "local", title: "Local" },
+   ];
+  
+  const handleSubmit = async (values: Status) => {
+    try {
+      await postNewStatus({ ...values });
+      showToast({ title: "Submitted form", message: "Status has been posted!" });
+    } catch (error) {
+      console.error(error);
+      showToast({ title: "Error", message: "Something went wrong!" });
+    }
+  };
 
   return (
-    <>
-      <Form
-        actions={
-          <ActionPanel>
-            <Action.SubmitForm onSubmit={handleSubmit} />
-          </ActionPanel>
-        }
-      >
-        <Form.TextField id="textfield" title="Content Warning" placeholder="" />
-        <Form.TextArea id="textarea" title="Post detail" placeholder="" enableMarkdown={true} />
-        <Form.Separator />
-        <Form.DatePicker id="datepicker" title="Scheduled Time" />
-        <Form.Dropdown id="dropdown" title="Visibility" storeValue={true} defaultValue="">
-          <Form.Dropdown.Item value="direct" title="Direct" />
-          <Form.Dropdown.Item value="private" title="Private" />
-          <Form.Dropdown.Item value="unlisted" title="Unlisted" />
-          <Form.Dropdown.Item value="public" title="Public" />
-        </Form.Dropdown>
-        <Form.FilePicker id="files" />
-        <Form.Checkbox id="sensitive" title="Sensitive" label="Sensitive" />
-      </Form>
-    </>
+    <Form
+      actions={
+        <ActionPanel>
+          <Action.SubmitForm onSubmit={handleSubmit} />
+        </ActionPanel>
+      }
+    >
+      <Form.TextField id="textfield" title="Content Warning" placeholder="" />
+      <Form.TextArea id="staus" title="Post detail" placeholder="" enableMarkdown={true} />
+      <Form.Separator />
+      <Form.DatePicker id="datepicker" title="Scheduled Time" />
+      <Form.Dropdown id="visibility" title="Visibility" storeValue={true} defaultValue="">
+        {visibilityOptions.map(({value, title}) => (
+          <Form.Dropdown.Item key={value} value={value} title={title} />
+        ))}
+      </Form.Dropdown>
+      <Form.FilePicker id="files" />
+      <Form.Checkbox id="sensitive" title="Sensitive" label="Sensitive" />
+    </Form>
   );
 }
diff --git a/src/oauth.ts b/src/oauth.ts
index 16ee75c..1f97b9b 100644
--- a/src/oauth.ts
+++ b/src/oauth.ts
@@ -1,10 +1,8 @@
 import { OAuth, getPreferenceValues } from "@raycast/api";
-import fetch from "node-fetch";
-import { Preference, AppResponse } from "./types";
+import { Preference } from "./types";
+import { fetchToken,createApp} from "./api";
 
-const redirectUri = "https://raycast.com/redirect?packageName=Extension";
-
-export const client = new OAuth.PKCEClient({
+const client = new OAuth.PKCEClient({
   redirectMethod: OAuth.RedirectMethod.Web,
   providerName: "Akkoma",
   providerIcon: "akkoma-icon.png",
@@ -12,37 +10,12 @@ export const client = new OAuth.PKCEClient({
   description: "Connect to your Akkoma | Pleroma | Mastodon account",
 });
 
-const createAkkomaApp = async (): Promise<AppResponse> => {
-  const { instance } = getPreferenceValues<Preference>();
-
-  const response = await fetch(`https://${instance}/api/v1/apps`, {
-    method: "POST",
-    headers: {
-      "Content-Type": "application/json",
-    },
-    body: JSON.stringify({
-      client_name: "raycast-akkoma-extension",
-      redirect_uris: redirectUri,
-      scopes: "read write push",
-      website: "https://raycast.com",
-    }),
-  });
-
-  if (!response.ok) {
-    throw new Error("Failed to create Akkoma app");
-  }
-
-  const appResponse = await response.json();
-  return appResponse as AppResponse;
-};
-
-export const requestAccessToken = async (
+const requestAccessToken = async (
   clientId: string,
   clientSecret: string,
   authRequest: OAuth.AuthorizationRequest,
   authCode: string
 ): Promise<OAuth.TokenResponse> => {
-  const { instance } = getPreferenceValues<Preference>();
 
   const params = new URLSearchParams();
   params.append("client_id", clientId);
@@ -52,23 +25,14 @@ export const requestAccessToken = async (
   params.append("grant_type", "authorization_code");
   params.append("redirect_uri", authRequest.redirectURI);
 
-  const response = await fetch(`https://${instance}/oauth/token`, {
-    method: "POST",
-    body: params,
-  });
-  if (!response.ok) {
-    console.error("fetch tokens error:", await response.text());
-    throw new Error(response.statusText);
-  }
-  return (await response.json()) as OAuth.TokenResponse;
+  return await fetchToken(params, "fetch tokens error:");
 };
 
-export const refreshToken = async (
+const refreshToken = async (
   clientId: string,
   clientSecret: string,
   refreshToken: string
 ): Promise<OAuth.TokenResponse> => {
-  const { instance } = getPreferenceValues<Preference>();
 
   const params = new URLSearchParams();
   params.append("client_id", clientId);
@@ -76,40 +40,33 @@ export const refreshToken = async (
   params.append("refresh_token", refreshToken);
   params.append("grant_type", "refresh_token");
 
-  const response = await fetch(`https://${instance}/oauth/token`, {
-    method: "POST",
-    body: params,
-  });
-  if (!response.ok) {
-    console.error("refresh tokens error:", await response.text());
-    throw new Error(response.statusText);
-  }
+  const tokenResponse = await fetchToken(params, "refresh tokens error:");
 
-  const tokenResponse = (await response.json()) as OAuth.TokenResponse;
   tokenResponse.refresh_token = tokenResponse.refresh_token ?? refreshToken;
   return tokenResponse;
 };
 
-// 授权过程
+
 export const authorize = async (): Promise<void> => {
   const { instance } = getPreferenceValues<Preference>();
   const tokenSet = await client.getTokens();
 
   if (tokenSet?.accessToken) {
     if (tokenSet.refreshToken && tokenSet.isExpired()) {
-      const { client_id, client_secret } = await createAkkomaApp();
+      const { client_id, client_secret } = await createApp();
       await client.setTokens(await refreshToken(client_id, client_secret, tokenSet.refreshToken));
     }
     return;
   }
 
-  const { client_id, client_secret } = await createAkkomaApp();
+  const { client_id, client_secret } = await createApp();
 
   const authRequest = await client.authorizationRequest({
     endpoint: `https://${instance}/oauth/authorize`,
     clientId: client_id,
     scope: "read write push",
   });
+
   const { authorizationCode } = await client.authorize(authRequest);
 
   await client.setTokens(await requestAccessToken(client_id, client_secret, authRequest, authorizationCode));
diff --git a/src/types.ts b/src/types.ts
index 2192d87..f570d6a 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,5 +1,13 @@
+export type VisibilityScope = "public" | "unlisted" | "direct" | "private" | "local"
+
+export interface VisibilityOption {
+  title: string;
+  value: VisibilityScope
+}
+
 export interface Preference {
-  instance: string
+  instance: string;
+  defaultVisibility: VisibilityScope;
 }
 
 export interface Credentials {
@@ -28,18 +36,158 @@ export interface AppResponse {
   vapid_key: string;
 }
 
-export interface Status {
-  content_type: string;
-  expires_in: number;
-  language: string;
-  media_ids: string[];
-  preview: boolean | string | number;
-  scheduled_at: string;
-  sensitive: string | boolean | number;
-  spoiler_text: string;
-  status: string;
-  to: string[];
-  visibility: "direct" | "private" | "unlisted" | "public";
+interface Poll {
+  expired_in: number;
+  hide_totals?: boolean | string;
+  multiple?: boolean | string | number;
+  options: string[]
 }
 
+export interface Status {
+  content_type?: string;
+  expires_in?: number;
+  in_reply_to_conversation_id?: string;
+  in_reply_to_id?: string;
+  language?: string;
+  media_ids?: string[];
+  poll?: Poll;
+  preview?: boolean | string | number;
+  scheduled_at?: string;
+  sensitive?: string | boolean | number;
+  spoiler_text?: string;
+  status?: string;
+  to?: string[];
+  visibility?: VisibilityScope;
+}
 
+// interface Account {
+//   acct: string;
+//   avatar: string;
+//   avatar_static: string;
+//   bot: boolean;
+//   created_at: string;
+//   display_name: string;
+//   emojis: Emoji[];
+//   fields: Field[];
+//   followers_count: number;
+//   following_count: number;
+//   header: string;
+//   header_static: string;
+//   id: string;
+//   is_confirmed: boolean;
+//   note: string;
+//   pleroma: Pleroma;
+//   source: Source;
+//   statuses_count: number;
+//   url: string;
+//   username: string;
+// }
+
+// interface Emoji {
+//   shortcode: string;
+//   static_url: string;
+//   url: string;
+//   visible_in_picker: boolean;
+// }
+// interface Field {
+//   name: string;
+//   value: string;
+//   verified_at: string | null;
+// }
+
+// interface Pleroma {
+//   background_image: null;
+//   hide_favorites: boolean;
+//   hide_followers: boolean;
+//   hide_followers_count: boolean;
+//   hide_follows: boolean;
+//   hide_follows_count: boolean;
+//   is_admin: boolean;
+//   is_confirmed: boolean;
+//   is_moderator: boolean;
+//   relationship: Relationship;
+//   skip_thread_containment: boolean;
+//   tags: any[];
+// }
+// type Actor = "Application" | "Group" | "Organization" | "Person" | "Service"
+
+// interface Relationship {
+//   blocked_by: boolean;
+//   blocking: boolean;
+//   domain_blocking: boolean;
+//   endorsed: boolean;
+//   followed_by: boolean;
+//   following: boolean;
+//   id: string;
+//   muting: boolean;
+//   muting_notifications: boolean;
+//   note: string;
+//   notifying: boolean;
+//   requested: boolean;
+//   showing_reblogs: boolean;
+//   subscribing: boolean;
+// }
+
+// interface Source {
+//   fields: Field[];
+//   note: string;
+//   pleroma: SourcePleroma;
+//   privacy: VisibilityScope;
+//   sensitive: boolean;
+// }
+
+// interface SourcePleroma {
+//   actor_type: Actor;
+//   discoverable: boolean;
+//   no_rich_text: boolean;
+//   show_role: boolean;
+// }
+
+// interface StatusResponse {
+//   account: Account;
+//   application: null;
+//   bookmarked: boolean;
+//   card: null;
+//   content: string;
+//   created_at: string;
+//   emojis: any[];
+//   favourited: boolean;
+//   favourites_count: number;
+//   id: string;
+//   in_reply_to_account_id: null;
+//   in_reply_to_id: null;
+//   language: null;
+//   media_attachments: any[];
+//   mentions: any[];
+//   muted: boolean;
+//   pinned: boolean;
+//   pleroma: StatusPleroma;
+//   poll: null;
+//   reblog: null;
+//   reblogged: boolean;
+//   reblogs_count: number;
+//   replies_count: number;
+//   sensitive: boolean;
+//   spoiler_text: string;
+//   tags: any[];
+//   uri: string;
+//   url: string;
+//   visibility: string;
+// }
+
+// interface StatusPleroma {
+//   content: PleromaContent;
+//   context: string;
+//   conversation_id: number;
+//   direct_conversation_id: null;
+//   emoji_reactions: any[];
+//   expires_at: null;
+//   in_reply_to_account_acct: null;
+//   local: boolean;
+//   spoiler_text: PleromaContent;
+//   thread_muted: boolean;
+// }
+
+// interface PleromaContent {
+//   "text/plain": string;
+// }
\ No newline at end of file