78 lines
2 KiB
Python
78 lines
2 KiB
Python
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"""Background scheduler: free RSS detection, enrichment of new videos, and quota-aware
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recent-first / deep backfill. Runs inside the API process (single worker)."""
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import logging
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from apscheduler.schedulers.background import BackgroundScheduler
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from app.config import settings
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from app.db import SessionLocal
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from app.sync.runner import (
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run_deep_backfill,
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run_enrich,
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run_recent_backfill,
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run_rss_poll,
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)
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logger = logging.getLogger("subfeed.scheduler")
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_scheduler: BackgroundScheduler | None = None
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def _job(name: str, fn) -> None:
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db = SessionLocal()
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try:
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result = fn(db)
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logger.info("job %s -> %s", name, result)
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except Exception:
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db.rollback()
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logger.exception("job %s failed", name)
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finally:
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db.close()
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def _rss_job() -> None:
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_job("rss_poll", lambda db: run_rss_poll(db))
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def _enrich_job() -> None:
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_job("enrich", lambda db: run_enrich(db))
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def _backfill_job() -> None:
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# Recent-first for not-yet-synced channels, then deep backfill for the rest.
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def work(db):
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recent = run_recent_backfill(db, max_channels=25)
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deep = run_deep_backfill(db, max_channels=10)
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return {"recent": recent, "deep": deep}
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_job("backfill", work)
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def start_scheduler() -> None:
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global _scheduler
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if not settings.scheduler_enabled or _scheduler is not None:
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return
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scheduler = BackgroundScheduler(timezone="UTC")
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scheduler.add_job(
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_rss_job, "interval", minutes=settings.rss_poll_minutes, id="rss_poll"
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)
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scheduler.add_job(
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_enrich_job, "interval", minutes=settings.enrich_interval_minutes, id="enrich"
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)
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scheduler.add_job(
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_backfill_job,
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"interval",
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minutes=settings.backfill_interval_minutes,
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id="backfill",
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)
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scheduler.start()
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_scheduler = scheduler
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logger.info("scheduler started")
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def shutdown_scheduler() -> None:
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global _scheduler
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if _scheduler is not None:
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_scheduler.shutdown(wait=False)
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_scheduler = None
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