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FabledScribe/src/scribe/services/trash_scheduler.py
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bvandeusenandClaude Fable 5 7d48eb0b1b
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refactor(services): one periodic-task shape, one APScheduler job shape, one token hash, one summary rule — the services pass of the shape audit (#2830, milestone 296)
- background.start_periodic(interval, work, label=) replaces the three hand-rolled
  while-True/sleep/try loops in logging, auth and notifications.
- services/scheduler.ScheduledJob replaces the four private BackgroundScheduler
  copies in recurrence/version_pinning/trash/db_maintenance schedulers; public
  start_/stop_/reschedule_ surfaces unchanged.
- api_keys.hash_token is the one sha256 helper; auth.py used to inline it 5x.
- auth.is_registration_open reads via settings.get_admin_setting; notification
  prefs read via settings.get_setting; _fire_share_email uses _get_user_email.
- projects.get_project_summary / milestones.get_project_milestone_summary are
  now the one-id view of their batch siblings instead of a second copy of the
  queries; sharing.best_permission_by (was _deduplicate_by_permission) is the
  one rank-dedup, now also used by list_projects_for_user.
- backup: the row builders for every section both exporters carry are named
  functions, so a column added to one export cannot silently miss the other.
- iso() from models.base replaces the attr.isoformat()-if-attr-else-None idiom
  and db_maintenance._iso across services; backup keeps its explicit shape.
- trash.py hoists the sql_delete/timedelta imports it re-imported per function.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-21 12:34:28 -04:00

51 lines
1.5 KiB
Python

"""Daily APScheduler cron that purges expired trash.
A single job at 03:30 UTC (services/scheduler.py). Iterates every user and
applies that user's own `trash_retention_days` setting; 0 disables auto-purge
for that user.
"""
from __future__ import annotations
import asyncio
import logging
from apscheduler.triggers.cron import CronTrigger
from sqlalchemy import select
from scribe.models import async_session
from scribe.models.user import User
from scribe.services import trash as trash_svc
from scribe.services.scheduler import ScheduledJob
from scribe.services.settings import get_setting
logger = logging.getLogger(__name__)
async def _run_purge() -> None:
async with async_session() as session:
user_ids = (await session.execute(select(User.id))).scalars().all()
purged = 0
for uid in user_ids:
raw = await get_setting(uid, "trash_retention_days", "90")
try:
days = int(raw)
except (TypeError, ValueError):
days = 90
purged += await trash_svc.purge_expired(uid, days)
if purged:
logger.info("trash purge: removed %d expired row(s)", purged)
else:
logger.debug("trash purge: nothing expired")
_JOB = ScheduledJob("trash_retention_purge", _run_purge, label="Trash retention")
def start_trash_scheduler(loop: asyncio.AbstractEventLoop) -> None:
_JOB.start(loop, CronTrigger(hour=3, minute=30, timezone="UTC"), describe="daily 03:30 UTC")
def stop_trash_scheduler() -> None:
_JOB.stop()