Files
HartOMat/backend/app/tasks/beat_tasks.py
T
Hartmut 7a1329958d feat(J): WebSocket live-events + replace polling + fix ffmpeg turntable timeout
- fix(render): ffmpeg overlay=0:0 -> overlay=0:0:shortest=1 to prevent hang on finite PNG sequences
- feat(ws): add core/websocket.py ConnectionManager + Redis Pub/Sub subscriber loop
- feat(ws): add /api/ws WebSocket endpoint with JWT query-param auth in main.py
- feat(ws): emit render_complete/failed + cad_processing_complete events from step_tasks.py
- feat(ws): emit order_status_change events from orders router
- feat(ws): add beat_tasks.py broadcast_queue_status task (every 10s via Redis __broadcast__)
- feat(frontend): add useWebSocket hook with auto-reconnect (exponential backoff, 25s ping)
- feat(frontend): add WebSocketContext + WebSocketProvider wrapping App
- refactor(frontend): remove polling from WorkerActivity (was 5s/3s) + OrderDetail (was 5s)
- refactor(frontend): reduce polling in Layout (8s->60s) + NotificationCenter (15s->60s)
- docs: add ffmpeg shortest=1 + WebSocket JWT auth learnings to LEARNINGS.md

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-06 20:49:34 +01:00

34 lines
1.1 KiB
Python

"""Celery Beat periodic tasks."""
from __future__ import annotations
import json
import logging
from celery import shared_task
logger = logging.getLogger(__name__)
@shared_task(name="app.tasks.beat_tasks.broadcast_queue_status", queue="step_processing")
def broadcast_queue_status() -> None:
"""Broadcast current queue depths to all WebSocket clients every 10s.
Publishes to the Redis '__broadcast__' channel which the WebSocket
subscriber in the FastAPI process forwards to all connected clients.
"""
try:
import redis as sync_redis
from app.config import settings
r = sync_redis.from_url(settings.redis_url, decode_responses=True)
depths = {
"step_processing": r.llen("step_processing"),
"thumbnail_rendering": r.llen("thumbnail_rendering"),
}
event = {"type": "queue_update", "depths": depths}
r.publish("__broadcast__", json.dumps(event))
r.close()
logger.debug("Broadcast queue_update: %s", depths)
except Exception as exc:
logger.warning("broadcast_queue_status failed: %s", exc)