58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
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from __future__ import annotations
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import asyncio
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from collections.abc import Callable, Awaitable
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from typing import Any
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from yuxi.channels.models import ChannelMessage
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QUEUE_DEBOUNCE_MS = 500
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class WeChatQueueDebounce:
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def __init__(self, debounce_ms: int = QUEUE_DEBOUNCE_MS):
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self._debounce_s = debounce_ms / 1000.0
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self._pending: dict[str, asyncio.Task] = {}
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self._queues: dict[str, list[ChannelMessage]] = {}
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self._lock = asyncio.Lock()
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async def enqueue(
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self,
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session_key: str,
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message: ChannelMessage,
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handler: Callable[[list[ChannelMessage]], Awaitable[Any]],
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) -> None:
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async with self._lock:
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if session_key not in self._queues:
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self._queues[session_key] = []
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self._queues[session_key].append(message)
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if session_key in self._pending:
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self._pending[session_key].cancel()
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self._pending[session_key] = asyncio.create_task(self._flush_after_delay(session_key, handler))
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async def _flush_after_delay(
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self,
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session_key: str,
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handler: Callable[[list[ChannelMessage]], Awaitable[Any]],
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) -> None:
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await asyncio.sleep(self._debounce_s)
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async with self._lock:
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messages = self._queues.pop(session_key, [])
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self._pending.pop(session_key, None)
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if messages:
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await handler(messages)
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async def flush_all(self) -> None:
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async with self._lock:
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keys = list(self._queues.keys())
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for key in keys:
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async with self._lock:
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if key in self._pending:
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self._pending[key].cancel()
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self._pending.pop(key, None)
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@property
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def debounce_ms(self) -> int:
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return int(self._debounce_s * 1000)
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