forked from uniborg/uniborg
71 lines
1.9 KiB
Python
71 lines
1.9 KiB
Python
import asyncio
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import re
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import html
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from telethon import events
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from telethon.tl.functions.channels import EditTitleRequest
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from telethon.errors.rpcerrorlist import ChatNotModifiedError
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MULTI_EDIT_TIMEOUT = 80
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REVERT_TIMEOUT = 2 * 60 * 60
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DEFAULT_TITLES = {
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# 1040270887: 'Programming & Tech',
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1384391544: 'Programming & Tech for girls',
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1286178907: 'test supergroup'
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}
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rename_lock = asyncio.Lock()
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revert_task = None
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def fix_title(s):
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# Ideally this would be a state machine, but ¯\_(ツ)_/¯
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def replace(m):
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token = m.group(1)
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if token.lower() == 'and':
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token = '&'
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return token[0].upper() + token[1:] + (' ' if m.group(2) else '')
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return re.sub(r'(\S+)(\s+)?', replace, s)
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async def edit_title(chat, title):
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try:
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await borg(EditTitleRequest(
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channel=chat, title=title
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))
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except ChatNotModifiedError:
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pass # Everything is ok
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async def wait_and_revert(chat_id, timeout):
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await asyncio.sleep(timeout)
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await edit_title(chat_id, DEFAULT_TITLES[chat_id])
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@borg.on(events.NewMessage(
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pattern=re.compile(r"(?i)programming (?:&|and) (.+)"),
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chats=list(DEFAULT_TITLES.keys())))
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async def on_name(event):
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global revert_task
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new_topic = fix_title(event.pattern_match.group(1))
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new_title = f"Programming & {new_topic}"
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if "Tech" not in new_title:
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new_title += " & Tech"
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if len(new_title) > 255 or rename_lock.locked():
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return
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await event.respond(
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f'<a href="tg://user?id={event.from_id}">{html.escape(event.sender.first_name)}</a>'
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' changed the group title!',
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parse_mode='html'
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)
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with (await rename_lock):
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await edit_title(event.chat_id, new_title)
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await asyncio.sleep(MULTI_EDIT_TIMEOUT)
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if revert_task and not revert_task.done():
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revert_task.cancel()
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revert_task = asyncio.create_task(
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wait_and_revert(event.chat_id, REVERT_TIMEOUT))
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