Two rows of the canonical-patterns table had drifted, found while closing the roadmap audit:
- 63 mutation responses carried no `ok` — `{"unsubscribed": true}`, `{"status": "ok"}`,
`{"added": 3, …}` and so on. Each now leads with `"ok": true` (additive: every field a client
reads is still there).
- Twelve route helpers committed on their own. Six were just the end of their handler's work and now
flush: the playlist item add/remove and Watch later get-or-create, the Plex series/season bulk
mark, and the invite decision + account activation — which an approval used to land in separate
transactions. The other six commit on purpose (a token durable before its link is mailed, a
single-use token burned as its own unit, the Google callback's tail, a background registration
with its own session, the staged search ingest around YouTube calls), each listed with its reason.
`tests/test_route_conventions.py` holds both rules in code; CLAUDE.md's two rows point at it.
~150 HTTPExceptions carried a hand-written English sentence as their detail,
shown verbatim under the Hungarian UI — in the blocking error dialog and on
every inline surface that printed HttpError.detail (sign-in, setup wizard,
change password, the passphrase gate, live search). Four also quoted an
upstream exception's text back to the user.
- app/refusal.py: `refused(status, reason, **params)` → {code: "refused",
reason, …params}; localizeDetail translates errors.refused.<reason> with the
params interpolated. "Unknown X" 404s use the existing not_found(what).
- sysconfig.set_value raises InvalidSetting (reason + bounds) instead of an
English ValueError; the three writers answer it through setting_refused.
- The Plex connection/write/image failures log what the upstream said and
answer a reason; the search scraper's failure is logged and answered as
youtube/unavailable (it crashed refusal_reason before).
- HttpError.detail now only ever holds a translated reason: a string detail
(only the framework's own can remain) is left out, so reading .detail is
safe everywhere — including destructured, the hole the raw-detail source
scan could not see. That scan and its five-file exception list are gone.
- Enforced: test_http_details.py fails on any HTTPException with a sentence
for a detail; the contract test requires every refused reason and every
not_found "what" in both languages, and no key for one that is gone.
- local/jsx-comment-text: a // inside JSX children renders as text; the rule
is ten lines in eslint.config.js rather than eslint-plugin-react's ~1800
lockfile lines.
HLS sessions were keyed by the item, so a second account opening the same
film killed the first one's session; the displaced player reclaimed at its
playhead and evicted the other in turn. The registry is now keyed by
(viewer, rating_key), segment requests resolve by both, and the session
directory carries the viewer (the orphan sweep still recognises the older
shapes).
Only transcodes counted toward a cap, so remuxes — each a whole segmented
copy of the film on the scratch volume — were bounded by the library size.
Three bounds now apply after every start, each dropping the least recently
used: two sessions per account, the transcode cap, and a new admin knob,
plex_max_sessions (default 8), over every session. A superseded session
request returns at once, since it waits on the killed ffmpeg, so an account
cannot park more request workers than it may hold sessions.
The subtitle extractor's full-pass slots were global and minutes long each;
one account opening subtitles on film after film could hold them all. An
account may now hold three of the six, and still gets windows past that.
Two near-end checkpoints arrive together routinely (the 10 s tick and the
debounced seeked flush); both read "not watched" before writing and both
scrobbled, bumping Plex's viewCount twice. The transition is now decided by
the write: an insert that did not conflict, or an update conditional on the
old status.
The finish also popped the push-ordering entry that _resume_push_superseded
reads, so an older resume push still in flight could land at Plex after the
scrobble and revive a resume point on a watched item. It now stamps the
entry instead; the existing eviction bounds the map.
Round 6 turned `artifact_may_arrive` into a positive rule, but keyed it to the HLS vocabulary in
general rather than to what THIS session produces: the playlist regex accepted master/index/stream_*
for every session and the `seq == 0` branch accepted any variant token unconditionally. The two argv
branches are disjoint — a single-audio session is given `seg_%d.ts` + `index.m3u8` and no `%v` at
all, so `master.m3u8`, `stream_*.m3u8` and every `seg_<variant>_<n>.ts` are names it can never write,
and vice versa — so each of those was read as "an HLS name, so wait and see" and held a threadpool
worker, plus its pooled DB connection, for the full timeout. That is verbatim the round-5 outage the
route's own comment claims it prevents.
Measured through the real route against a live single-audio session, before: master.m3u8 404 after
30.0s, stream_q7z.m3u8 404 after 30.0s, seg_a0_0.ts / seg_zzzz_0.ts / seg_0_0.ts 404 after 20.1s
each. After, on the running localdev API: 404 in 44-316ms for all of them, while index.m3u8,
seg_0.ts and seg_1.ts still answer 200 — nothing is over-refused.
The session now carries the rendition names its ffmpeg was told to write, and `entry` is derived from
them instead of passed. And "one place" now means the argv BUILDS its patterns from the same
functions the parser reads back (`segment_name("%d", "%v")`, `variant_playlist_name("%v")`): the
layout was still spelled out independently in six places, with `_VIDEO_VARIANT` read by no consumer,
which is the drift that caused round 6's HIGH. A test asserts the argv's own patterns are what those
functions produce, and that every name they expand to is one the guard accepts.
The load-bearing MEASURED comment cited ffmpeg 8.1.1 — the Windows host's. The binary that writes
these files is the API container's 7.1.5; re-measured there, the conclusion holds.
Round 5 added a guard so a request for a segment beyond the produced region
answers instead of polling out the full timeout — the route is a SYNC one, so
every such wait parks a threadpool worker and, through `current_user`, a pooled
DB connection. Measured against real ffmpeg, the guard could not fire where it
mattered.
`-hls_segment_filename seg_%v_%d.ts` substitutes the VARIANT first: a dual-audio
session writes seg_0_0.ts (video) and seg_a0_0.ts / seg_a1_0.ts (the `name:aN`
renditions). The regex read those as sequence-first, so every video segment
parsed as segment 0 and every audio segment did not parse at all — the guard was
inert on every multi-audio item, which is most of this library. `_seg()` carried
the same inversion: the warm-up waited 8 s for `seg_1_0.ts`, a name ffmpeg never
writes, on every multi-audio session start AND every seek-restart.
The layout is now one constant plus one parser (`segment_name` /
`_SEG_NAME_RE`), with a test pinning them to each other, instead of three
comments that could drift — and they had drifted, all three ways.
The guard is also a positive rule now. It was a blocklist, so anything that was
not a single-audio segment name was waved through: `GET …/anything.m3u8` still
parked a worker for 30 s, while the route's comment claimed a flood of hopeless
names was what it prevented. A session produces its playlists and its segments
and nothing else. `.vtt` leaves `_HLS_CT` with it — ffmpeg runs with `-sn` and
subtitles are a separate route, so that extension could only ever name a file
that will not arrive.
Also here:
- A 5000-digit segment index reached the client as a 500: `int()` on an
unbounded digit run raises past 4300 digits and only OSError was caught. The
name is bounded on the route and the index in the regex — the same bug class
the subtitle routes were bounded for.
- A session torn down between the wait and the read is a 404, not a 500. `_kill`
rmtrees the directory and no lock spans those two steps; the player's recovery
is keyed on the STATUS, so a 500 skipped the reclaim and ended playback with
"couldn't play" instead of restarting at the playhead. The trigger is ordinary
— `loadSession` awaits the new session before destroying the old hls instance.
- Two comments claimed an open player checkpoints every 10 s "whether or not it
is playing", which is the stated reason the 30 s finished-idle reap is safe.
`flush` sends nothing once the finish latch is up, or before a position is
known. The states it does cover — playing or paused mid-item — are the ones
the rule needs; the comments now say that instead of more.
- The route's tests leave the DB lane: the route reads nothing from the database
since the auto-start was removed, and there those four regressions SKIP on a
machine with no Postgres while pytest prints green.
14 tests, mutation-checked: the old parse, the old warm-up name, the blocklist,
both bounds off the absurd name, the unguarded read, and the route dropping
`proc` — each red on the test that names it.
Both found by UAT in a real browser, after the tests for them were already green — which is the
whole reason this repo settles focus and timing claims by running them.
- **The autoFocus fix worked, and then the dialog took the focus back.** React 18's StrictMode runs
every effect mount→cleanup→mount in development: the cleanup handed focus back to the trigger, and
the second mount, finding the focus outside the dialog, moved it to the first focusable — off the
`autoFocus` field a beat after the browser had put it there. Chrome measured it: INPUT (commitMount)
→ BODY (cleanup) → ✕ (re-mount). The effect is idempotent now — it remembers what the dialog was
focused on and restores THAT on a re-mount — and the close-time restore is conditional on the
dialog still holding the focus, which it tracks as it changes rather than computing at cleanup,
where the panel is already out of the document. A dialog no longer yanks focus back from wherever
the user has since moved it.
- **Passing ffmpeg's handle to the segment wait only shortened the FINISHED case.** Measured against
the running localdev API: a request for `seg_99999.ts` on a live session still took 20 195 ms,
because that ffmpeg has not exited and the wait has no other reason to stop. ffmpeg writes segments
in order, so a segment whose predecessor does not exist is not the next one and cannot arrive —
and that is knowable at once. Same request now: 45 ms.
Verified on localdev against the real library (Westworld S01E06, remux, multi-audio): Mod+K opens the
command palette with the focus in its search field and typing reaches it; playback runs on the new
session-scoped HLS URL; a request naming a stale session id is a 404; and a viewer paused for longer
than the finished-session rule keeps their 2.4 GB session across two reaper passes — the progress
checkpoint touches it — and resumes cleanly.
vitest 1009, pytest 1127.
Deep-review round 5, over round 4's own fixes.
- Sessions are keyed by rating_key alone while a session's DIRECTORY is per (key, offset, tag), and
the artifact URL carried no session identity — so once a seek-restart or a second viewer of the
same item took the registry slot, the old viewer's request for `seg_12.ts` was answered 200 with
the new session's twelfth segment: bytes from a different `-ss` offset under `-copyts`, on a
timeline the client is not on. Wrong content with a success status is the one failure a player
cannot notice, and round 4's reclaim-on-404 could never fire on it. The id is in the path now (so
the playlist's relative names resolve back into the same session), a mismatch is a 404, and the
player reclaims at the playhead. The entry playlist's auto-start is gone with it: it could only
ever begin at 0, silently discarding the viewer's position.
- Round 4 exempted paused viewers from the reaper by keeping EVERY finished session for the full
ten-minute idle window — one whole segmented copy of a film per item, on the volume the download
center shares. The signal it needed already existed: an open player checkpoints its position every
10 s whether or not it is playing, so that route now touches the session and the periodic pass is
back on the short rule.
- POST /session's opportunistic reap was never scoped to the key being started: it walked the whole
registry with the 30 s finished rule, so pressing play on ANY item — even a direct-play one, the
call ran before that early return — killed another viewer's paused session. It is gone; the
periodic pass owns reaping.
- A segment that can never arrive no longer polls out the full 20 s: the producer's handle is passed
to `wait_for`, so a finished ffmpeg answers at once. This is a sync route, so each such wait parked
a threadpool worker AND a pooled DB connection, and an ordinary seek past the produced region was
enough to do it.
- The DataError handler's re-raise branch — the half that keeps a genuine DataError a 500 — is
pinned, so simplifying it to an unconditional 422 cannot pass in silence.
Six regression tests (two route-level, in the DB lane), each mutation-checked red on the assertion
it is named after. pytest 1124, vitest 999.
Deep-review round 4, backend half.
- The periodic HLS reaper (round 3) applied the "finished and unfetched for 30 s" rule that only a
NEW session request may apply. A remux finishes long before the film, and a paused player with a
full buffer fetches nothing, so a one-minute pause killed the session and playback died ~30 s after
resuming. The periodic pass is `reap_abandoned` now (the long idle limit, finished or not).
- A subtitle `publish` that could not keep its output (full / read-only cache volume) returned
quietly, so every poll queued the window and the whole-container pass again. It reports failure
and the pass is backed off like a failed read; a cached VTT that cannot be READ is answered
`unavailable` (`cache_unreadable`) instead of scheduling reads that can never land.
- The subtitle routes bound `rating_key` / `sub_ord` (they become a cache file name: a 250-digit
one was ENAMETOOLONG, which pathlib's exists() re-raises -> a 500), and the cache helpers no longer
throw on such a name.
- One app-wide handler turns psycopg's "text fields cannot contain NUL" DataError into a 422: round 3
guarded only the by-rating_key lookup, and `contains=`, `contains_group=`, reorder/bulk key lists
and the collection search still 500'd.
- The hand-written `db.get(...) is None -> 404 "Unknown ..."` siblings use `get_or_404` with a
`what` (channel / video / user), so the Hungarian UI no longer shows English for a gone row.
Deep-review round 3 of bug hunt 2026-09.
- The YouTube and Plex progress bodies are bounded by POSITION_MAX_S (the int4 position columns): a
finite position of 2^31 or more was a DataError, i.e. a 500 — the sibling of round 2's non-finite
fix.
- plex/stream.py promised "a periodic reaper", but reap_idle ran only inside the NEXT session
request: after the last playback an abandoned session (its ffmpeg still working, its directory a
whole segmented copy of the film) lived until someone pressed play again. A lifespan task reaps
every 60 s.
- Tests for what round 2 left untested: the 422's body keeps the list shape the UI localizes, and
stream_session refuses non-finite start/aoff.
Deep-review round 2 of the 2026-09 bug hunt, over the round-1 fix diff.
- A window was LATE by the distance to the keyframe its input seek landed on, and then doubled for
good once the full pass merged in: a cue already running at the window's start came out at a
negative time, and the webvtt muxer's default shifted the whole output so it sat at 0. Measured on
the real Westworld S01E06 at 25:00: every window cue +5.005 s, 682 cues merged instead of 608.
`-avoid_negative_ts disabled` keeps the times exact (the parser reads ffmpeg's signed-field
spelling of a negative time); now 608/608 on that file, and a real-ffmpeg test pins it.
- A full pass that failed was re-armed every minute while the viewer watched what it did publish —
a whole-container read per minute. It now backs off for an hour; windows keep running meanwhile.
- A failed WINDOW set the track's failure memo, so any uncovered position read "failed" — a final
answer that ends the player's poll, even with the full pass about to deliver, and one any account
could plant with an absurd `at`. It now marks only the span it failed to read; "failed" is given
once the full pass AND a window there have both failed.
- Windows join by what they COVER, not a bucketed identity: a backward seek no longer waits behind a
window that cannot cover it, and a playhead crossing a bucket edge no longer queues a second read.
The queue is bounded per track and overall.
- shutdown() sets a flag a worker checks before it spawns ffmpeg (one still in its Plex lookup used to
start a read after the kill sweep); queued-job cancellation and the lifespan call are now tested.
- A window starts where ffmpeg is told to seek (rounded to the ms it gets), a rounded-up millisecond
carries into the minute (no more `00:00:60.000`), a key's first publish claims nothing before its
VTT lands, and `at`/`offset`/`start`/`aoff` refuse non-finite values (`at` also an absurd one).
Deep-review of the bug-hunt round (R1). The background extractor from ed4ab4e1 held, but its seams
did not:
- Window + full pass doubled every cue in the first hour. merge_vtt de-duplicated on the raw timing
text, and the two passes spell a timestamp differently (shift_vtt writes HH:MM:SS.mmm, ffmpeg's
webvtt muxer drops the hour below 1 h; shift_vtt(-0.0) never normalised the full pass). Timing is
now parsed and re-emitted canonically, keyed with the cue text so two cues sharing a time survive.
- A full pass that exited non-zero was published as complete: "ready" forever, subtitles ending
where ffmpeg died, and no eviction to ever retry. It now covers only up to its last cue, is never
complete, and records the failure memo.
- The window's dedup identity held the live playhead, so every 1 s poll queued another read of the
file. It is keyed on the track now, and a queued job re-checks coverage before reading anything.
- A sidecar track waited behind an unrelated embedded full pass (the full job is per item). Its
window job now fetches it whole — one small request.
- The <track> fetch ran the scheduler at position 0: an unrequested window over the head of the file,
and a refusal of a window that was on disk. It is a pure read of the cache now.
- publish() is serialised (a lost update became permanent once complete was set); the pool is shut
down and running ffmpeg children killed at app shutdown (they held interpreter exit for minutes);
?at=inf is a 422, not a 500; and both subtitle routes use current_user instead of the cookie-only
poster gate, which let a suspended or epoch-revoked session keep scheduling reads (pre-existing).
_extract_and_publish finally has tests of its own — every earlier test stubbed it out. 19 mutations,
each red on the assertion that names it.
Bug hunt 2026-09, items 8 and 12 — the two things the Plex player was measurably
lying about.
Item 8: picking a subtitle track showed nothing for a long time, and the reported
workaround was to stop/start until it suddenly worked. Measured on prod against a
17.06 GB MKV with two embedded SubRip tracks:
full pass, one track 154 s
full pass, both tracks in ONE run 111 s
-c:s copy (no WebVTT conversion) 143 s
from 1:00:00 to the end of file 66 s
a 630 s window at 1:00:00, both 8 s
So the conversion was never the cost: ffmpeg streams every byte of the container
between its seek point and its stop point, and the array delivers ~140 MB/s. The
only lever is reading less. Three changes follow from that:
* a window around the playhead is extracted and published FIRST (seconds), and
the full pass completes behind it;
* every embedded text track rides that same single read — picking Hungarian used
to cost a full pass and then switching to English cost another one;
* none of it happens inside a request any more. The endpoint answers 202 while a
background worker extracts, the player polls /status (carrying its position, so
the window follows the viewer), and one ffmpeg run finally has a timeout.
-copyts is deliberately absent from a windowed pass: with it ffmpeg ignores -t and
reads the whole container anyway (measured — a [0, 600 s] window still took the
full 145 s), so a window comes back on a zero-based clock and is shifted to
absolute time here. Cached tracks written by older builds have no coverage sidecar
and count as complete, so nothing is re-extracted after the upgrade.
The <track> is no longer mounted before the server has something to put in it; a
"Preparing subtitles: …" notice stands in, and a track that can never be shown says
why instead of leaving the viewer to conclude the picker does nothing.
Item 12: "Bitrate" read a constant 211 kbps on every remux, because it was the
master playlist's BANDWIDTH — which ffmpeg derives from the one stream whose rate
it knows, the -b:a 192k AAC track, plus 10%. It is a measurement now: bytes per
second of MEDIA from hls.js FRAG_LOADED, accumulated per fragment type and summed
(a multi-audio session's video and audio renditions cover the same media seconds,
so pooling them would report half the truth), and an honest dash until the first
fragment lands. The panel also finally names the audio and subtitle track in play.
Verified in the browser against the real Plex library, and every new test
mutation-checked.
The button deletes the local row and mirrors the un-mark to Plex, but it decided whether
to push from the previous STATUS alone (prev_status != "new") — and an in-progress item's
row is status="new" carrying a position, which is exactly how the importer maps a bare
viewOffset. So for the single case the button exists for, nothing was ever sent to Plex:
the offset stayed, and the next pull imported it straight back. The user cleared Protector
twice and it returned to Continue watching at 92s both times.
Push now when Plex holds anything to clear — a view count, or a resume point. "hidden"
stays Siftlode-only and pushes nothing, which is what this endpoint's docstring always
claimed and the status-only guard contradicted.
One unscrobble clears BOTH viewCount and viewOffset — measured against the live server from
a watched+offset state and an offset-only one, so the push itself needed no change. The
client docstring that claimed "clears viewCount" is what sent the first diagnosis down a
wrong path (a timeline write with time=0, which does not clear an offset at all); it now
records what the server actually does.
Verified end to end on the real Plex server: the button leaves viewCount=None viewOffset=None,
and a full 44,885-item re-import brings back no row for it.
Upgrade mode-3's 10-bit/HDR branch from "route to software libx264" (BUG 1's
behaviour) to a full-GPU pipeline: VAAPI decode → OpenCL tonemap (hable,
HDR10/HLG → bt709 SDR nv12) → h264_vaapi. Gen 9.5 (UHD 630) can't tonemap in
the VAAPI VPP (tonemap_vaapi fails), so OpenCL is the only HW route — proven on
the prod iGPU at ~4.2x realtime, ~1 CPU core.
- stream.py: `_select_encode` returns (hw, tonemap); a 10-bit/HDR HW-decodable
source picks the tonemap graph when the OpenCL runtime is present, else drops
to software. `_opencl_present` gates on a registered ICD. `_venc_opts` /
`_hwaccel_in_opts` gain the tonemap variant (named vaapi+opencl devices,
`-filter_hw_device ocl`, hwmap→tonemap_opencl→hwmap reverse). `_want_hw` kept
as the hw-half wrapper. The runtime HW→SW fallback still backstops a session
that emits no segment.
- Dockerfile: add the Intel NEO OpenCL runtime (intel-opencl-icd). It was removed
from Debian trixie, so it's pulled from bookworm (22.43 still supports Gen 9.5;
the .deb runs on the trixie base — verified live). Harmless without /dev/dri.
- route + FE: thread `tonemap` through the session response; the stats overlay
mode row reads "transcode · GPU · HDR→SDR" for the tonemap path.
- tests: tonemap command branch, the (hw, tonemap) selection matrix (auto/on ×
8-bit/10-bit × opencl), start_session tonemap wiring, and the fmtMode tag.
Non-h264 items (playable="transcode": HEVC/VP9/AV1/MPEG-2/XviD…) now play by
re-encoding the video to H.264 inside the existing HLS session, instead of the
old HTTP 501. VAAPI hardware encode (h264_vaapi, full GPU decode→scale→encode
pipeline) where the render node is present and the source is HW-decodable;
libx264 software fallback otherwise (yuv420p 8-bit, -threads reserve-one-core).
The re-encode mints a keyframe at every segment boundary (-force_key_frames) so
the HLS muxer still cuts independent segments and seeking works; everything else
— -copyts, the HLS tail, multi-audio renditions, the AAC audio path — is the
same machinery as remux, so hls.js/subtitles/seeking are unchanged. The session
route returns transcode/hw so the player can surface the active mode.
pytest pins both command branches (software + VAAPI shape) and the HW-selection
gate (render node present AND source HW-decodable). Browser-UAT'd on the XviD
fixture (Winning London): 501→plays, real 528×384 H.264 frames, 0 dropped, seek
lands clean; stats overlay Mode row reads "transcode".
Deep-review of the quickfix batch surfaced two data/preference-loss bugs plus
smaller items; all fixed with tests.
- watch_sync _pull_apply: don't let the Plex-authoritative pull overwrite a DIRTY
local row (a change whose immediate push failed) — that stranded the value
forever since _repush_dirty only retries dirty rows. Leave it dirty for re-push.
- PlexProvider / ChannelsProvider: a partial shared link opened in a fresh tab
persisted mount-time DEFAULTS over the account's stored scope/sort/filters
(base read before the account was pinned). Persist/keep only URL-present dims;
re-hydrate the omitted ones from storage.
- playback resume write-back: guard against out-of-order delivery (a superseded
older push now drops) and evict the throttle map so it can't grow unbounded.
- PlexPlayer: announce mid-playback buffering to assistive tech (role=status +
sr-only label); new plex.player.buffering (HU+EN).
- columnSort: hoist the shared key:dir sort codec used by both URL-state modules.
- Tests: dirty-guard + flag-settle + per-key throttle scoping + superseded-push
(backend); hold-repeat/suppress-click/unmount + partial-link no-clobber +
refetch-doesn't-clobber-undo (frontend). Backend pytest 475, FE vitest 519.
Make Plex the source of truth for watch state:
- Write-back during playback: item_progress now pushes the resume position to
Plex on the periodic checkpoint too (not only the final flush), throttled to
one push per item every ~10s (in-memory, single-process rate limiter). The FE
now also fires an immediate (debounced) push on seek.
- Faster incremental pull: 30 → 15 min (plex_watch_sync_interval_min).
- Plex-authoritative pull: _pull_apply resolves a genuine divergence to Plex's
state instead of last-write-wins; the _same_state + synced_to_plex short-circuit
still prevents a freshly-pushed row from bouncing. Removed the now-unused
_LWW_TOLERANCE_S / _sift_ts.
Tests: 5 new in test_plex_watch_sync.py (Plex-wins resume/watched, no-bounce,
throttle final vs periodic).
- 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.
R12 S5 item: the feed's FINISH_MARGIN_SECONDS (10) and the Plex player's
_FINISH_MARGIN_S (30) were flagged as drifted duplicates. They are a
deliberate divergence, not drift — the feed clears a short video's resume
bar, Plex marks long-form items (movies/episodes with credits) watched.
Cross-reference + document both so it reads as intentional.
Layering cleanup, no behaviour change (ruff clean backend+scripts, pytest 193):
- Invert the scheduler->routes dependency: reset_demo_state (+ its demo-seed
helpers) move from routes/admin.py to a new service module app/demo.py.
Both routes/admin.py and scheduler.py now import it from app.demo, so the
scheduler no longer reaches into the routes layer — its lazy import (the
routes<->scheduler cycle workaround) is gone, hoisted to a top-level import.
- Publish the private symbols that were imported across module boundaries (the
underscore convention was lying): feed._serialize -> serialize,
feed._to_tsquery_str -> to_tsquery_str, videos._insert_stubs -> insert_stubs,
videos._stub_from_playlist_item -> stub_from_playlist_item,
worker._uploader_url -> uploader_url, plex._shared._item_or_404 ->
item_or_404. Scoped renames — the 5 other route modules keep their own truly
private _serialize helpers.
- _release_asset moves from routes/downloads.py to app/downloads/service.py as
the public release_asset (asset bookkeeping is a service concern); the routes
call it via service.release_asset.
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 B. The 2011-line routes/plex.py becomes an app/routes/plex/
package:
- admin.py — connection test, catalog sync, owner watch-link config (5)
- browse.py — libraries, facets, collections, playlists, show/item, people (23)
- playback.py — image/subtitle proxies, HLS streaming, watch-state writes (10)
- _shared.py — the two genuinely cross-module helpers (_item_or_404, log)
- __init__.py — assembles `router` from the three sub-routers; the app wiring
(plex_routes.router in main.py) is unchanged.
Mechanically generated and proven behaviour-equivalent: every function/class
source relocated verbatim (get_source_segment equality) and the (method, path)
route set is identical to before. Endpoints keep the /api/plex prefix on each
sub-router. No SQL change (db.query untouched; 2.0 select() is the next step).
Gate: ruff clean, pytest 193 passed (pure-logic + DB lane).
peter