fix: Parse command args before editing message, rename since:last_out_msg to since:lastout

Author: m4l3vich

README.md

@@ -9,7 +9,7 @@ A Telegram userbot that summarises chat messages using AI.
 - Summarise the last N messages in any chat
 - Summarise messages since a specific time (`since:07:00`, `since:DD-MM-YYYY_HH:MM`)
 - Summarise messages from the last N minutes, hours, or days (`last:5m`, `last:2h`, `last:1d`)
-- Summarise messages since your last outgoing message (`since:last_out_msg`)
+- Summarise messages since your last outgoing message (`since:lastout`)
 - Ask a specific question about the chat content alongside the summary
 - Works with any OpenAI-compatible or Anthropic-compatible AI provider
 - Customisable system prompt via a plain text file
@@ -164,7 +164,7 @@ Commands are sent as outgoing messages in any chat.
 | `/summary 50 What was decided about X?` | Summarise with a specific question        |
 | `/summary since:07:00`                  | Messages since 07:00 today                |
 | `/summary since:11-03-2026_07:00`       | Messages since a specific date and time   |
-| `/summary since:last_out_msg`           | Messages since your last outgoing message |
+| `/summary since:lastout`                | Messages since your last outgoing message |
 | `/summary last:30m`                     | Messages from the last 30 minutes         |
 | `/summary last:2h`                      | Messages from the last 2 hours            |
 | `/summary last:1d`                      | Messages from the last day                |

package.json

@@ -1,6 +1,6 @@
 {
   "name": "telegram-summariser",
-  "version": "2.0.1",
+  "version": "2.0.2",
   "description": "",
   "main": "index.js",
   "type": "module",

src/fetch-messages.ts

@@ -11,15 +11,15 @@ interface FetchMessagesParameters {
 type ParsedLimit =
   | { type: 'count'; value: number }
   | { type: 'date'; value: Date }
-  | { type: 'last_out_msg' }
+  | { type: 'lastout' }
 
 const sleep = (ms: number) => new Promise(r => setTimeout(r, ms))
 
 function parseLimit(limit: string): ParsedLimit {
   const zone = process.env.SUMMARY_TIMEZONE || process.env.TZ || 'Europe/Moscow'
 
-  if (limit === 'since:last_out_msg') {
-    return { type: 'last_out_msg' }
+  if (limit === 'since:lastout') {
+    return { type: 'lastout' }
   }
 
   // since:HH:MM — today at that time
@@ -58,7 +58,7 @@ function parseLimit(limit: string): ParsedLimit {
   const count = Number(limit)
   if (isNaN(count) || count <= 0) {
     throw new Error(
-      `Invalid limit: "${limit}". Use a number, since:HH:MM, since:DD-MM-YYYY_HH:MM, last:Nm/Nh/Nd, or since:last_out_msg`
+      `Invalid limit: "${limit}". Use a number, since:HH:MM, since:DD-MM-YYYY_HH:MM, last:Nm/Nh/Nd, or since:lastout`
     )
   }
   return { type: 'count', value: count }
@@ -138,7 +138,7 @@ export async function fetchMessages({
       return fetchByCount(client, chatId, parsed.value)
     case 'date':
       return fetchByDate(client, chatId, parsed.value)
-    case 'last_out_msg':
+    case 'lastout':
       return fetchSinceLastOutgoing(client, chatId)
   }
 }

src/index.ts

@@ -31,10 +31,11 @@ async function main() {
   tgClient.onNewMessage.add(async msg => {
     if (!msg.isOutgoing || !msg.text.startsWith('/summary')) return
 
+    const [limit, ...extraQuery] = msg.text.split(' ').slice(1)
+
     appendMessage(tgClient, msg, 'Summarising: Fetching messages...')
 
     try {
-      const [limit, ...extraQuery] = msg.text.split(' ').slice(1)
       tgClient.log.warn(
         'Begin summarising: chat=%s, limit=%s, query=%s',
         msg.chat.id,