feat(core): try fetching with zero hash in resolvePeer

closes #76

packages/core/src/highlevel/methods/users/resolve-peer.ts

@@ -7,6 +7,7 @@ import type { ITelegramClient } from '../../client.types.js'
 import { MtPeerNotFoundError } from '../../types/errors.js'
 import type { InputPeerLike } from '../../types/peers/index.js'
 import { extractUsernames, toInputChannel, toInputPeer, toInputUser } from '../../utils/peer-utils.js'
+import { _getChannelsBatched, _getUsersBatched } from '../chats/batched-queries.js'
 
 export function _normalizePeerId(peerId: InputPeerLike): number | string | tl.TypeInputPeer {
 // for convenience we also accept tl and User/Chat objects directly
@@ -160,7 +161,30 @@ export async function resolvePeer(
     // if it's not the case, we'll get an `PEER_ID_INVALID` error anyways
     const [peerType, bareId] = parseMarkedPeerId(peerId)
 
-    if (!(peerType === 'chat' || client.storage.self.getCached(true)?.isBot)) {
+    if (peerType === 'chat' || client.storage.self.getCached(true)?.isBot) {
+        // bots can use access_hash=0 in most of the cases
+        switch (peerType) {
+            case 'user':
+                return {
+                    _: 'inputPeerUser',
+                    userId: bareId,
+                    accessHash: Long.ZERO,
+                }
+            case 'chat':
+                return {
+                    _: 'inputPeerChat',
+                    chatId: bareId,
+                }
+            case 'channel':
+                return {
+                    _: 'inputPeerChannel',
+                    channelId: bareId,
+                    accessHash: Long.ZERO,
+                }
+        }
+    }
+
+    // users can only use access_hash=0 in some very limited cases, so first try resolving some other way
     // we might have a min peer in cache, which we can try to resolve by its username/phone
     const cached = await client.storage.peers.getCompleteById(peerId, true)
 
@@ -187,28 +211,45 @@ export async function resolvePeer(
         }
     }
 
-        throw new MtPeerNotFoundError(`Peer ${peerId} is not found in local cache`)
-    }
-
+    // finally let's try resolving by access_hash=0
     switch (peerType) {
-        case 'user':
+        case 'user': {
+            const res = await _getUsersBatched(client, {
+                _: 'inputUser',
+                userId: bareId,
+                accessHash: Long.ZERO,
+            })
+
+            if (res != null && res._ === 'user' && res.accessHash != null) {
                 return {
                     _: 'inputPeerUser',
                     userId: bareId,
+                    accessHash: res.accessHash,
+                }
+            }
+            break
+        }
+        case 'channel': {
+            const res = await _getChannelsBatched(client, {
+                _: 'inputChannel',
+                channelId: bareId,
                 accessHash: Long.ZERO,
-            }
-        case 'chat':
-            return {
-                _: 'inputPeerChat',
-                chatId: bareId,
-            }
-        case 'channel':
+            })
+
+            if (res != null && res._ === 'channel' && res.accessHash != null) {
                 return {
                     _: 'inputPeerChannel',
                     channelId: bareId,
-                accessHash: Long.ZERO,
+                    accessHash: res.accessHash,
                 }
             }
+            break
+        }
+    }
+
+    // we couldn't resolve the peer by any means, so throw an error
+
+    throw new MtPeerNotFoundError(`Peer ${peerId} is not found in local cache`)
 }
 
 /**