from celery import Celery
from app.config import settings

celery_app = Celery(
    "schaefflerautomat",
    broker=settings.redis_url,
    backend=settings.redis_url,
    include=["app.tasks.step_tasks", "app.tasks.ai_tasks", "app.tasks.flamenco_tasks"],
)

celery_app.conf.update(
    task_serializer="json",
    result_serializer="json",
    accept_content=["json"],
    timezone="UTC",
    enable_utc=True,
    task_routes={
        "app.tasks.step_tasks.*": {"queue": "step_processing"},
        "app.tasks.ai_tasks.*": {"queue": "ai_validation"},
        "app.tasks.flamenco_tasks.*": {"queue": "step_processing"},
    },
    beat_schedule={
        "poll-flamenco-jobs": {
            "task": "app.tasks.flamenco_tasks.poll_flamenco_jobs",
            "schedule": 10.0,  # every 10 seconds
            # Discard if not consumed before the next run; prevents queue build-up
            # when workers are busy with long-running STEP/render tasks.
            "options": {"expires": 9},
        },
        "check-stalled-renders": {
            "task": "app.tasks.flamenco_tasks.check_stalled_renders",
            "schedule": 300.0,  # every 5 minutes
            "options": {"expires": 290},
        },
    },
)