239 lines
8.5 KiB
Python
239 lines
8.5 KiB
Python
import asyncio
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import contextlib
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from dataclasses import dataclass
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import asyncpg
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from pyrogram import Client, enums
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from pyrogram.errors import RPCError
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from pyrogram.handlers import (
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ChatMemberUpdatedHandler,
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EditedMessageHandler,
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MessageHandler,
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)
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from userbot.modules.capture import capture_message
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from userbot.modules.capture.chat_meta import meta_from_chat
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from userbot.modules.client import PyroClient
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from userbot.modules.jobs import JobConsumer
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from utils.events import notify_bg_event
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from utils.jobs import enqueue
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from utils.logging import logger
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from utils.read import accounts, bots
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from utils.storage import ContentAddressedStorage
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from watcher import tokens
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from watcher.context import build_bot_capture_context
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from watcher.drain import DrainCursor, drain_backlog, first_cursor
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DEVICE_MODEL = "Beavergram Bot"
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TOKEN_MISSING = "Токен не найден на диске" # noqa: S105
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INVALID_TOKEN_ERRORS = ("ACCESS_TOKEN_INVALID", "ACCESS_TOKEN_EXPIRED")
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BACKLOG_ATTEMPTS = 3
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BACKLOG_RETRY_PAUSE = 60
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@dataclass
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class RunningBot:
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client: PyroClient
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account_id: int
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tasks: list[asyncio.Task]
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backlog: asyncio.Task | None = None
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async def _cancel(task: asyncio.Task) -> None:
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task.cancel()
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with contextlib.suppress(asyncio.CancelledError):
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await task
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def _handlers(pool: asyncpg.Pool) -> tuple:
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async def on_message(client: Client, message) -> None: # noqa: ANN001
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ctx = getattr(client, "capture", None)
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if ctx is None or message.empty or message.chat is None or message.date is None:
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return
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meta = meta_from_chat(message.chat, ctx.contacts.ids)
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await ctx.watches.on_text(
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meta.chat_id, message.id, message.text or message.caption
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)
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toggles = ctx.resolve(meta)
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if not toggles.messages:
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return
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await capture_message(client, message, ctx, toggles)
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await notify_bg_event(
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ctx.pool,
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"message",
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ctx.account_id,
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chat_id=meta.chat_id,
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message_id=message.id,
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)
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if message.chat.type is not enums.ChatType.PRIVATE:
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await enqueue(
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pool, ctx.account_id, "enrich_chat", {"chat_id": meta.chat_id}
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)
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async def on_member(client: Client, update) -> None: # noqa: ANN001
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ctx = getattr(client, "capture", None)
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if ctx is None or update.chat is None:
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return
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await enqueue(pool, ctx.account_id, "enrich_chat", {"chat_id": update.chat.id})
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return (
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MessageHandler(on_message),
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EditedMessageHandler(on_message),
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ChatMemberUpdatedHandler(on_member),
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)
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def _is_invalid_token(exc: RPCError) -> bool:
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return any(marker in str(exc) for marker in INVALID_TOKEN_ERRORS)
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class BotRegistry:
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def __init__(self, pool: asyncpg.Pool, storage: ContentAddressedStorage) -> None:
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self._pool = pool
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self._storage = storage
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self._running: dict[int, RunningBot] = {}
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self._lock = asyncio.Lock()
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@property
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def running(self) -> list[int]:
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return list(self._running)
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async def sync(self) -> None:
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async with self._lock:
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await self._adopt_dropped_in()
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enabled = await bots.enabled_bot_ids(self._pool)
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for bot_id in set(self._running) - enabled:
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await self._stop(bot_id)
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for bot_id in enabled - set(self._running):
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await self._start(bot_id)
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for bot_id in enabled & set(self._running):
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await self._resume_backlog(bot_id)
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for bot_id in await bots.removed_bot_ids(self._pool):
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tokens.drop(bot_id)
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async def close(self) -> None:
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for bot_id in list(self._running):
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await self._stop(bot_id)
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async def _adopt_dropped_in(self) -> None:
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unknown = tokens.stored_bot_ids() - await bots.known_bot_ids(self._pool)
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for bot_id in unknown:
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await bots.register_bot(self._pool, bot_id)
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logger.info(f"[green]Bot token adopted from disk:[/] {bot_id}")
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def _client(self, bot_id: int, token: str) -> PyroClient:
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return PyroClient(
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str(bot_id),
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workdir=str(tokens.sessions_dir()),
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device_model=DEVICE_MODEL,
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load_handlers=False,
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bot_token=token,
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skip_updates=False,
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)
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async def _start(self, bot_id: int) -> None:
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token = tokens.load(bot_id)
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if token is None:
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await bots.set_status(
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self._pool, bot_id, bots.STATUS_UNAUTHORIZED, detail=TOKEN_MISSING
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)
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return
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client = self._client(bot_id, token)
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for handler in _handlers(self._pool):
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client.add_handler(handler)
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try:
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await client.start()
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me = client.me
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if me is None:
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msg = "bot session is not authorized"
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raise RuntimeError(msg)
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except RPCError as exc:
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status = (
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bots.STATUS_UNAUTHORIZED
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if _is_invalid_token(exc)
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else bots.STATUS_ERROR
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)
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await bots.set_status(self._pool, bot_id, status, detail=str(exc))
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logger.warning(f"[yellow]Bot {bot_id} failed to start:[/] {exc}")
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with contextlib.suppress(Exception):
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await client.stop()
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return
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except Exception as exc:
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await bots.set_status(
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self._pool, bot_id, bots.STATUS_ERROR, detail=str(exc)
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)
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logger.exception(f"[red]Bot {bot_id} failed to start[/]")
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with contextlib.suppress(Exception):
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await client.stop()
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return
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account_id = await accounts.sync_account(
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self._pool, me, str(bot_id), is_bot=True
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)
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client.capture = await build_bot_capture_context(
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client, self._pool, self._storage, account_id
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)
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await bots.link_account(self._pool, bot_id, account_id)
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await bots.set_status(
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self._pool, bot_id, bots.STATUS_OK, username=me.username, title=me.full_name
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)
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await accounts.notify_accounts_changed(self._pool)
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consumer = JobConsumer(client, self._pool, account_id)
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self._running[bot_id] = RunningBot(
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client, account_id, [asyncio.create_task(consumer.run())]
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)
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await self._resume_backlog(bot_id)
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logger.info(
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f"[green]Bot account {account_id} watched:[/] @{me.username} ({bot_id})"
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)
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async def _resume_backlog(self, bot_id: int) -> None:
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running = self._running[bot_id]
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if running.backlog is not None and not running.backlog.done():
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return
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if not await bots.needs_backfill(self._pool, bot_id):
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return
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running.backlog = asyncio.create_task(
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self._backlog(running.client, bot_id, running.account_id)
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)
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async def _backlog(self, client: PyroClient, bot_id: int, account_id: int) -> None:
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async def save(at: DrainCursor) -> None:
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await bots.save_backlog_cursor(self._pool, bot_id, at.pts, at.qts, at.date)
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saved = await bots.backlog_cursor(self._pool, bot_id)
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cursor = DrainCursor(*saved) if saved else first_cursor()
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stored = 0
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for attempt in range(BACKLOG_ATTEMPTS):
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if attempt:
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await asyncio.sleep(BACKLOG_RETRY_PAUSE)
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walk = await drain_backlog(client, account_id, cursor, save)
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stored += walk.stored
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cursor = walk.cursor
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if walk.done:
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await bots.mark_backfilled(self._pool, bot_id)
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logger.info(
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f"[green]Account {account_id}: backlog complete,[/] "
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f"{stored} messages stored"
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)
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break
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else:
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logger.warning(
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f"[yellow]Account {account_id}: backlog unfinished at "
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f"pts={cursor.pts},[/] {stored} messages stored, resumes on restart"
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)
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if stored:
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await accounts.notify_accounts_changed(self._pool)
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async def _stop(self, bot_id: int) -> None:
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running = self._running.pop(bot_id, None)
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if running is None:
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return
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for task in (*running.tasks, running.backlog):
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if task is not None:
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await _cancel(task)
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with contextlib.suppress(Exception):
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await running.client.stop()
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logger.info(f"[yellow]Bot unwatched:[/] {bot_id}")
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