Files
FabledCurator/backend/app/tasks/thumbnail.py
T
bvandeusen 80a5690740 fix(fc2a): apply ruff autofix + skip vue-tsc check (no tsconfig)
Ruff:
The remaining I001 errors came from ruff treating `alembic` as a first-
party module (because the alembic/ directory exists in the repo root)
rather than third-party. Ran `ruff check --fix` locally — auto-sorted
import groupings to put alembic/sqlalchemy alongside backend.* as first-
party, and trimmed redundant blank lines after a few import blocks.

Frontend:
`npm run check` (vue-tsc --noEmit) was failing because vue-tsc has no
tsconfig.json to read against, and the frontend is pure JS without
JSDoc annotations — vue-tsc had nothing to do. Skipping the step until
we add a tsconfig + convert to TS or add JSDoc annotations.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-14 14:24:25 -04:00

50 lines
1.8 KiB
Python

"""generate_thumbnail task: PIL/ffmpeg thumbnail generation on the thumbnail queue.
Lives separately from import_file because thumbnails can be regenerated en
masse (FC-2c adds the 'regenerate all' admin action) and they're CPU-bound
so they deserve their own queue lane.
"""
from pathlib import Path
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from ..celery_app import celery
from ..config import get_config
from ..models import ImageRecord
from ..services.importer import is_video
from ..services.thumbnailer import Thumbnailer
IMAGES_ROOT = Path("/images")
def _sync_session_factory():
cfg = get_config()
engine = create_engine(cfg.database_url_sync, future=True, pool_pre_ping=True)
return sessionmaker(engine, expire_on_commit=False)
@celery.task(name="backend.app.tasks.thumbnail.generate_thumbnail", bind=True)
def generate_thumbnail(self, image_id: int) -> dict:
SessionLocal = _sync_session_factory()
with SessionLocal() as session:
record = session.get(ImageRecord, image_id)
if record is None:
return {"status": "missing", "image_id": image_id}
thumbnailer = Thumbnailer(images_root=IMAGES_ROOT)
source = Path(record.path)
try:
if is_video(source):
result = thumbnailer.generate_video_thumbnail(source, record.sha256)
else:
result = thumbnailer.generate_image_thumbnail(source, record.sha256)
except Exception as exc: # pragma: no cover — thumbnail failure is non-fatal
return {"status": "failed", "image_id": image_id, "error": f"{type(exc).__name__}: {exc}"}
record.thumbnail_path = str(result.path)
session.add(record)
session.commit()
return {"status": "ok", "image_id": image_id, "path": str(result.path)}