- Restore synchronize_session=False on the remove-bulk Core delete (the 2.0
default is 'auto'; keep the pre-conversion contract explicit).
- _episode_nav: list(...scalars()) instead of [r[0] for r in ...all()], matching
the house style used across the conversion.
- Extract app/plex/lookups.by_rating_key() and migrate the get-by-rating_key
pattern at 13 sites (imgcache x4, _shared.item_or_404, playback show/season,
browse x6).
- Coverage: add TestFacetsWithData (the converted wsq aggregation with real
data — the highest-risk untested builder), TestPlaylistAndCollectionEndpoints
(playlist CRUD + collections list), and an item-state playback test.
Full suite 256 passed, 2 skipped; ruff clean.
Mechanical 1.x->2.0 conversion of the self-contained plex modules, behaviour-
equivalent (the characterization net + existing plex tests stay green, 39
passed): app/plex/{sync(15),watch_sync(9),people(1),imgcache(4)} and
app/routes/plex/{admin(4),playback(8),_shared(1)}. Query builders become
select(); .first()/.all()->execute().scalars(); a bulk .update() ->
execute(update()); a single-column .first() -> db.scalar().
browse.py (61) + rollup.agg_subquery (the atomic unit with unified_library)
remain for wave 2.
Cleanup only, no behaviour change (ruff clean + pytest 193):
- imports hoisted above `router =` and grouped/sorted (isort) across the split
files; ruff-format pass restores the 2-blank-line PEP8 spacing the generator
collapsed to 1.
- the shared on-disk cache root moves to a neutral app/plex/cache.py, so
subtitles.py no longer imports it from imgcache.py (drops the cross-import).
- the former plex.py module docstring's access-model note (read endpoints open
to any authed user; admin endpoints test/sync) is restored in the package
__init__.py.
R12 S1 step A. Move the pure, leaf-level helpers out of the 2227-line
routes/plex.py into the app/plex service package with public names:
- app/plex/imgcache.py — on-disk poster/art cache + proxy (was _img_cache_*,
_image_key, _img_response, _IMG_CACHE/_IMG_SIZES). Owns the shared cache dir.
- app/plex/subtitles.py — WebVTT convert/time-shift + subtitle cache (was
_srt_to_vtt, _shift_vtt, _ffmpeg_to_vtt, _sub_cache_*, _BITMAP_SUBS).
- app/plex/rollup.py — show watch-state aggregation (was _rollup,
_show_status, _show_agg_subq, _show_state_map).
Behaviour-equivalent move: bodies verbatim, only the public API renamed and
call sites re-qualified. No endpoint or SQL change (db.query kept as-is; the
2.0 select() conversion is a later step). plex.py 2227 -> 2011 lines.
Gate: ruff clean, pytest 193 passed (pure-logic + DB lane).
peter