Files

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Python

"""Pub/sub messaging bus for chat events over Redis.
Provides asynchronous publish hooks for world/room chat and DMs, allowing the
WebSocket real-time gateway (and multi-instance replicas) to receive and fan out
chat messages in real time.
"""
from __future__ import annotations
import json
import logging
from typing import Any
import redis.asyncio as aioredis
from app.config import settings
logger = logging.getLogger(__name__)
async def publish_world_chat_event(
world_id: int, payload: dict[str, Any], room_id: int | None = None
) -> None:
"""Publish a world chat message event to Redis pub/sub for real-time delivery."""
try:
client = aioredis.from_url(settings.REDIS_URL, encoding="utf-8", decode_responses=True)
async with client:
channel = f"world:{world_id}:chat"
data = json.dumps(payload, default=str)
await client.publish(channel, data)
if room_id is not None:
await client.publish(f"room:{room_id}:chat", data)
except Exception as exc:
logger.debug("Failed to publish world chat event to Redis: %s", exc)
async def publish_dm_chat_event(
conversation_id: int, payload: dict[str, Any]
) -> None:
"""Publish a DM chat message event to Redis pub/sub for real-time delivery."""
try:
client = aioredis.from_url(settings.REDIS_URL, encoding="utf-8", decode_responses=True)
async with client:
channel = f"dm:{conversation_id}:chat"
data = json.dumps(payload, default=str)
await client.publish(channel, data)
except Exception as exc:
logger.debug("Failed to publish DM chat event to Redis: %s", exc)