refactor(client): isSelfPeer method

packages/client/src/client.ts

@@ -15,7 +15,7 @@ import {
 import { MemoryStorage } from '@mtcute/core/src/storage/memory.js'
 import { tdFileId } from '@mtcute/file-id'
 
-import { AuthState, getAuthState } from './methods/auth/_state.js'
+import { AuthState, getAuthState, isSelfPeer } from './methods/auth/_state.js'
 import { checkPassword } from './methods/auth/check-password.js'
 import { getPasswordHint } from './methods/auth/get-password-hint.js'
 import { logOut } from './methods/auth/log-out.js'
@@ -508,6 +508,12 @@ export interface TelegramClient extends BaseTelegramClient {
     on(name: string, handler: (...args: any[]) => void): this
 
     getAuthState(): AuthState
+    /**
+     * Check if the given peer/input peer is referring to the current user
+     * **Available**: ✅ both users and bots
+     *
+     */
+    isSelfPeer(peer: tl.TypeInputPeer | tl.TypePeer | tl.TypeInputUser): boolean
     /**
      * Check your Two-Step verification password and log in
      *
@@ -5237,6 +5243,10 @@ TelegramClient.prototype.getAuthState = function (...args) {
     return getAuthState(this, ...args)
 }
 
+TelegramClient.prototype.isSelfPeer = function (...args) {
+    return isSelfPeer(this, ...args)
+}
+
 TelegramClient.prototype.checkPassword = function (...args) {
     return checkPassword(this, ...args)
 }

packages/client/src/methods/auth/_state.ts

@@ -98,3 +98,27 @@ export async function _onAuthorization(
 
     return new User(auth.user)
 }
+
+/**
+ * Check if the given peer/input peer is referring to the current user
+ */
+export function isSelfPeer(
+    client: BaseTelegramClient,
+    peer: tl.TypeInputPeer | tl.TypePeer | tl.TypeInputUser,
+): boolean {
+    const state = getAuthState(client)
+
+    switch (peer._) {
+        case 'inputPeerSelf':
+        case 'inputUserSelf':
+            return true
+        case 'inputPeerUser':
+        case 'inputPeerUserFromMessage':
+        case 'inputUser':
+        case 'inputUserFromMessage':
+        case 'peerUser':
+            return peer.userId === state.userId
+        default:
+            return false
+    }
+}

packages/client/src/methods/chats/reorder-usernames.ts

@@ -2,7 +2,7 @@ import { BaseTelegramClient } from '@mtcute/core'
 
 import { InputPeerLike } from '../../types/index.js'
 import { assertTrue, isInputPeerChannel, isInputPeerUser, toInputChannel, toInputUser } from '../../utils/index.js'
-import { getAuthState } from '../auth/_state.js'
+import { isSelfPeer } from '../auth/_state.js'
 import { resolvePeer } from '../users/resolve-peer.js'
 
 /**
@@ -20,7 +20,7 @@ export async function reorderUsernames(
     if (isInputPeerUser(peer)) {
         // either a bot or self
 
-        if (peer._ === 'inputPeerSelf' || peer.userId === getAuthState(client).userId) {
+        if (isSelfPeer(client, peer)) {
             // self
             const r = await client.call({
                 _: 'account.reorderUsernames',

packages/client/src/methods/chats/set-chat-color.ts

@@ -2,7 +2,7 @@ import { BaseTelegramClient, MtTypeAssertionError, tl } from '@mtcute/core'
 
 import { InputPeerLike, MtInvalidPeerTypeError } from '../../types/index.js'
 import { assertTrue, isInputPeerChannel, isInputPeerUser, toInputChannel } from '../../utils/index.js'
-import { getAuthState } from '../auth/_state.js'
+import { isSelfPeer } from '../auth/_state.js'
 import { resolvePeer } from '../users/resolve-peer.js'
 
 // @available=user
@@ -64,8 +64,8 @@ export async function setChatColor(
     }
 
     if (isInputPeerUser(peer)) {
-        if (peer._ !== 'inputPeerSelf' && peer.userId !== getAuthState(client).userId) {
+        if (!isSelfPeer(client, peer)) {
-            throw new MtTypeAssertionError('setChatColor', 'inputPeerSelf | inputPeerUser', peer._)
+            throw new MtTypeAssertionError('setChatColor', 'self', peer._)
         }
 
         const r = await client.call({

packages/client/src/methods/chats/toggle-fragment-username.ts

@@ -2,7 +2,7 @@ import { BaseTelegramClient } from '@mtcute/core'
 
 import { InputPeerLike } from '../../types/index.js'
 import { assertTrue, isInputPeerChannel, isInputPeerUser, toInputChannel, toInputUser } from '../../utils/index.js'
-import { getAuthState } from '../auth/_state.js'
+import { isSelfPeer } from '../auth/_state.js'
 import { resolvePeer } from '../users/resolve-peer.js'
 
 /**
@@ -35,7 +35,7 @@ export async function toggleFragmentUsername(
     if (isInputPeerUser(peer)) {
         // either a bot or self
 
-        if (peer._ === 'inputPeerSelf' || peer.userId === getAuthState(client).userId) {
+        if (isSelfPeer(client, peer)) {
             // self
             const r = await client.call({
                 _: 'account.toggleUsername',