62 lines
2.4 KiB
Python
62 lines
2.4 KiB
Python
import asyncio
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from typing import Any, Dict, Union
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from aiogram import BaseMiddleware
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from aiogram.types import Message
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class AlbumMiddleware(BaseMiddleware):
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def __init__(self, latency: Union[int, float] = 0.1):
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# Initialize latency and album_data dictionary
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self.latency = latency
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self.album_data = {}
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#
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def collect_album_messages(self, event: Message):
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"""
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Collect messages of the same media group.
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"""
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# # Check if media_group_id exists in album_data
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if event.media_group_id not in self.album_data:
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# # Create a new entry for the media group
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self.album_data[event.media_group_id] = {"messages": []}
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#
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# # Append the new message to the media group
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self.album_data[event.media_group_id]["messages"].append(event)
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#
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# # Return the total number of messages in the current media group
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return len(self.album_data[event.media_group_id]["messages"])
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#
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async def __call__(self, handler, event: Message, data: Dict[str, Any]) -> Any:
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"""
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Main middleware logic.
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"""
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# # If the event has no media_group_id, pass it to the handler immediately
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if not event.media_group_id:
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return await handler(event, data)
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#
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# # Collect messages of the same media group
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total_before = self.collect_album_messages(event)
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#
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# # Wait for a specified latency period
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await asyncio.sleep(self.latency)
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#
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# # Check the total number of messages after the latency
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total_after = len(self.album_data[event.media_group_id]["messages"])
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#
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# # If new messages were added during the latency, exit
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if total_before != total_after:
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return
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#
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# # Sort the album messages by message_id and add to data
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album_messages = self.album_data[event.media_group_id]["messages"]
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album_messages.sort(key=lambda x: x.message_id)
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data["album"] = album_messages
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#
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# # Remove the media group from tracking to free up memory
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del self.album_data[event.media_group_id]
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# # Call the original event handler
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return await handler(event, data)
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#
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