Closes every ▶ DEFERRED test-coverage item from the E4 deep-review (Modal
focus-trap, useHistorySubview popstate URL-fallback, PLEX_SUB_URL round-trip,
loadInitialPage precedence + channelViewFrom, readSelectedId ?pl guard,
useUrlMirror dep-keying, usePref flush-on-unmount) + the a11y sweep, and the
findings from two /code-review high rounds. Test-only + behaviour-preserving
seams (parseId/navigationInit/playlistsInit/plexSubUrl extractions); no
user-facing change, no version bump. vitest 257→321. Not deployed.
Closes the re-review's test-coverage finding: a plexCards.dom.test asserting the
icon-only card controls (watched-toggle, Info, add-season/episode) each expose
their aria-label as an accessible name via getByRole({name}). A future edit that
drops a label now fails the gate instead of silently reopening the unnamed-button
gap the a11y sweep closed.
4 tests; full FE gate green (tsc/eslint/prettier/knip, 321 vitest).
Resolves the 5 /code-review high findings on this branch:
- a11y sweep: extend aria-label to the remaining icon-only Plex card buttons the
first pass missed — PlexPosterCard Info, SeasonCard watched-toggle + add-season
(EpisodeCard already had them). "Fix a principle everywhere, in one sweep."
- new shared lib/parseId.ts `parsePositiveIntId`, used by BOTH readSelectedId
(now guarding the stored ?pl fallback the same as the URL — was unguarded) and
plexSubUrl's ?v=playlist decode; removes the hand-duplicated guard.
- PAGE_KEY exported from navigationInit and imported by NavigationProvider (was
defined in both).
- hoist a `watchedLabel` const per card so title + aria-label can't drift.
+8 tests (parseId unit + guarded-stored ?pl); full FE gate green (tsc/eslint/
prettier/knip, 317 vitest).
The hover watched-toggle on Plex movie/episode cards is icon-only (WatchedIcon,
no text), so it carried a `title` but no accessible name for screen readers —
and the empty-Circle unwatched glyph could read like a radio. Mirror the title
into `aria-label` (the Modal close-button idiom) so the control announces its
action. The PlexInfo watched buttons already have visible text labels, so they
need nothing.
FE gate green (tsc/eslint/prettier/knip, 309 vitest).
The remaining E4 deep-review deferred gaps, in one sprint:
- readSelectedId split into playlistsInit.ts (react-refresh-clean, testable) —
?pl accepted only as a positive integer; empty/0/negative/fractional/non-numeric
fall back to the stored selection; null when neither is present.
- useUrlMirror: mounts write the param, a same-serialized rerender does NOT
re-fire (stable dep), a null value clears the key, other params preserved.
- usePref: a pending debounced write is FLUSHED on unmount (not dropped); an
unmount with nothing pending stays silent.
20 new test cases; full FE gate green (tsc/eslint/prettier/knip, 309 vitest).
Split the two URL-derived nav seeds out of NavigationProvider into
navigationInit.ts so they're unit-testable and the provider stays
react-refresh-clean (component-only exports). channelViewFrom also dedups the
identical _chan/?chan resolve the channelView seed and the onPop handler each
hand-rolled — locking the S1 fix (a popstate on a URL-only bookmark entry must
restore the channel from ?chan, not close it). Pure code motion.
Tests: the full loadInitialPage precedence matrix (?page > ?v > ?pl >
filters/?chan > stored landing > feed, with the beats-a-lower-param cases) and
channelViewFrom (_chan+name, ?chan fallback, state-over-url, closed → null).
15 tests; full FE gate green (tsc/eslint/prettier/knip).
Move `type Sub` + `PLEX_SUB_URL` out of the 538-line PlexBrowse into a small
plexSubUrl.ts so the encode/decode round-trip and its guards can be unit-tested
without dragging the component (and its lazy hls.js player) into the test graph.
Pure code motion — PlexBrowse imports the two symbols; the `SubviewUrl` import
moves with them.
Tests lock: encode of each bookmarkable kind, grid/player → null, encode→decode
identity, a person name containing ':' round-tripping, and the decode guards
(positive-integer playlist id; season needs both ids; non-empty show/info/person
arg; unknown kind/garbage → null).
12 tests; full FE gate green (tsc/eslint/prettier/knip).
Backfills the E4 deep-review's deferred coverage for the subview history
primitive. The keeper case is the S2 bookmark fix: a popstate that lands on a
URL-only entry (no history.state._sub) must restore the sub-view from the ?v
param via the SAME fallback the mount seed uses, not collapse to root.
Covers: seed from URL vs state._sub vs root, the no-SubviewUrl state-only
path, open() push+mirror + encode→null key-clear, and popstate restore from
state / from URL (the fix) / collapse-to-root.
9 tests, gate green.
Backfills the E4 deep-review's deferred Modal focus-management test. jsdom
returns null for every offsetParent (no layout), so focusablesIn() would see
zero controls; the test stubs HTMLElement.prototype.offsetParent to report
"visible" for connected nodes (what a real browser reports for the shown
dialog), and a second describe documents the raw-jsdom empty-guard path.
Covers: initial focus on open, Tab/Shift+Tab edge-wrap, pull-back on escaped
focus, the active===panel leak guard, no-trap in the interior, Escape closes
the topmost only, and restore-to-trigger on unmount. useBackToClose is mocked
(its history stack is covered by history.dom.test.ts).
10 tests; full FE gate green (tsc/eslint/prettier/knip, 257 vitest).
The reveal-class swap in S6 shortened two className lines (VideoCard action row,
SavedViewsWidget default-star), which prettier wants collapsed to one line. The
local `npm run lint` doesn't run prettier --check, so it slipped past the sprint
gate and only the release `siftlode check` caught it. Formatting only, no behavior
change. Fixes the pre-publish gate for the already-merged 0.70.0 on main.
Bump VERSION to 0.70.0 and add the user-facing release-notes entry for the E4
Frontend Platform epic: full bookmarkable/shareable address-bar URLs (retiring the
"Share view" button), touch-visible card action buttons with a shape (not
colour-only) watched marker, and the bookmark-page-closes-on-modal-close fix — over
a large internal front-end refactor (god-component splits, usePref, useUrlMirror,
FilterRail, Modal focus). No DB migration.
Deep-review (6 dimensions, 3-verifier adversarial pass) surfaced 7 findings, all
verified; fixed here.
- NavigationProvider + history.ts (medium, correctness): the popstate handlers
restored the open channel / Plex sub-view from history.state ONLY, but a fresh
?chan / ?v bookmark lives in the URL with no marker in state — so any overlay's
programmatic history.back() (closing a modal/player) silently closed the
bookmarked channel or collapsed the sub-view to the grid. Give onPop the same
URL fallback the initializers already use (history.ts extracts a shared readView
so seed and popstate can't diverge again).
- plexCards SeasonCard (medium, a11y): the "In progress" season badge was a
reveal-idle swap-badge → display:none on touch, and a season has no progress bar,
so an in-progress season was indistinguishable from unwatched on touch. Moved it
to the top-left (the toggle owns top-right) and made it always visible.
- plexCards watched toggle (low, a11y / WCAG 1.4.1): watched state was color-only
on touch (green vs white CheckCircle2). New WatchedIcon distinguishes by SHAPE —
CheckCircle2 (watched) vs an empty Circle (not) — used by all three card toggles.
- Modal.tsx (low, a11y): the focus trap leaked on Shift+Tab when focus rested on
the panel container itself (Node.contains(self) is true, so the pull-back branch
never ran). Guard now also checks `active === panel`.
- index.css (low, a11y): .reveal-idle faded only on .group:hover though .reveal is
revealed on hover AND focus-within → the badge overlapped the control on keyboard
focus. Added the focus-within fade.
- PlexBrowse.tsx (low, correctness): the ?v=playlist decoder accepted a non-integer
id (Number.isFinite); tightened to Number.isInteger(n) && n > 0, matching the ?pl
guard.
Gate green (tsc, knip, lint 0-err, 247 vitest). Self-E2E (localdev): ?v=show and
?chan bookmarks survive a modal open+close (were collapsing/closing before); Modal
Shift+Tab from the panel stays inside; in-progress season badge visible on touch;
watched toggle shows an empty-circle-vs-check shape difference; 0 console errors.
Applies the /code-review high findings on the E4 branch:
- usePref: flush the pending debounced server write on unmount instead of
clearing it, so the last change isn't lost (and can't later be overwritten by
the stale server value via the adopt effect). [correctness]
- PlaylistsProvider.readSelectedId: accept ?pl only when it's a positive integer
— "?pl=" gave Number("")===0 (finite) and "?pl=1.5" a fractional id, both of
which selected a non-existent playlist. [correctness]
- usePref: extract mergePrefsCache() so useSavePref and usePref.set share the
one me-cache merge shape instead of duplicating it. [reuse]
- New lib/useUrlMirror: the shared replaceState(urlWithParams(...)) mirror
effect, so FeedFiltersProvider and PlaylistsProvider stop hand-rolling the
identical block (keyed on the serialized delta so it only fires on change).
[reuse]
- plexCards: swapBadgeReveal() helper for the repeated
reveal-idle/group-hover:opacity-0 swap-badge ternary. [simplification]
Gate green (tsc, knip, lint 0-err, 247 vitest). Self-E2E (localdev): feed filter
mirrors to ?show and clears on leaving the feed / re-mirrors on return via
useUrlMirror; ?pl= (empty) and ?pl=abc no longer select a bogus playlist (fall
back to the stored selection); Plex reveal-idle badges still display:none on
touch after the helper refactor; 0 console errors.
The three filter rails — feed Sidebar, PlexSidebar, PlaylistsRail — each rendered
the same SidePanel chrome (title bar, customize `editing` state, edit-toggle,
reset-to-layout-default, edit hint) around a PanelGroups body, differing only in
identity + filter content. Extracted that shell into components/FilterRail.tsx:
each rail now supplies only what differs (title/icon, active-filter count +
Clear-all action, its `items`, and optional content above/below the groups —
`top` for the feed's scope toggle, `children` for its tag manager). FilterRail
owns the `editing` state, so all three drop their duplicated useState + SidePanel
wiring.
MediaSource facade (lib/mediaSource.ts): a thin `MediaSourceKind = "feed" | "plex"`
naming the two browsable, filterable sources (a PanelId minus "playlists", which
is a rail but not a source). Already unified in practice — one SortControl, the
source-agnostic ActiveFilter[] chips, PanelId layouts, now the shared shell — so
this is formalization, not new capability: a single named seam for a future third
source or a cross-source feature. The two media-source rails annotate their `kind`
with it; PlaylistsRail passes the plain PanelId. Per the recon, the playlist-dialog
merge was deliberately NOT forced (it proved forced + low value). UX-3 control-vocab
sweep deliberately deferred — the rails already use the canonical primitives.
Behaviour-preserving. Gate green (tsc, knip, lint 0-err, 247 vitest). Self-E2E
(localdev): all three rails render via FilterRail — feed (scope toggle + panel
groups + Customize→editing with reset + 56 reorder affordances, exits clean), Plex
(filter groups + customize), Playlists (sections + customize); 0 JS console errors.
UX-7 — hover-only card actions were `opacity-0 group-hover:opacity-100`: fine on
a mouse, but invisible AND still tappable on a touch device (no hover). New
`.reveal` primitive (index.css) gates the hide on `@media (hover: hover)`, so a
touch device keeps the control visible; its partner `.reveal-idle` is the idle
badge a control replaces (watched/in-progress pill under the watched-toggle),
faded on hover and dropped on touch so the two don't collide at the same corner.
Migrated the true controls — feed card action toolbar (VideoCard), Plex poster
card watched-toggle/info/add across all card variants + their swap badges
(plexCards), message pop-out (Messages), edit-interval pencil (Scheduler), and
saved-view star/rename/delete (SavedViewsWidget). Pure play-scrim overlays (the
whole card is the tap target) stay hover-only by design.
FE-9 — Modal.tsx had aria-modal but no focus management. Adds: a Tab/Shift+Tab
focus trap (topmost layer only, wraps at the edges and pulls escaped focus back);
initial focus into the dialog unless an autoFocus child already placed it; focus
restore to the trigger on close (captured in a useState initializer during render,
before commit runs autoFocus and moves activeElement inside); and aria-labelledby
wiring the dialog to its title.
Gate green (tsc, knip, lint 0-err, 247 vitest). Self-E2E (localdev): FE-9 trap
both directions + pull-back + Escape-restore-to-trigger + aria-labelledby verified;
UX-7 feed toolbar opacity 0 on desktop / 1 under mobile (hover:none) emulation,
Plex reveal buttons opacity 1 + reveal-idle badges display:none on touch.
Pure code-motion, DownloadCenter 1088->359 L. Group by kind, mirroring the S4
plexCards/plexViews split:
- components/downloadRow.tsx (309 L): the user-list presentation + shared row
primitives — StatusPill, Thumb, IconBtn, SourceRef, ChannelLine, DownloadRow,
UsageBar (+ jobTitle/jobChannel/displayUrl helpers, status/phase constants).
- components/downloadModals.tsx (178 L): the per-item user modals — MetaEditModal
(rename/metadata) and ErrorModal (failure detail + retry).
- components/downloadAdmin.tsx (267 L): the admin "System" tab — AdminSystem plus
QuotaModal and QuotaUserPicker.
Every extracted piece is prop-driven with no shell-state reach-back, so the shell
just imports them back; the tab logic, mutations and modal state stay in
DownloadCenter. Behaviour-preserving.
Gate green (tsc first try, knip, lint 0-err, 247 vitest). Self-E2E (localdev):
Queue/Library/Shared/System tabs render, UsageBar, admin storage/footprint/job
list, MetaEditModal open/close, 0 console errors.
The native-controls-yield effect registered addEventListener("blur", onBlur) but its
cleanup removed "blur-sm" (a stray Tailwind-class find-replace artifact), so the blur
listener was never removed — leaking one per player open/close. Match the names.
Mirror the Plex player split (plexPlayerHooks.ts / plexPlayerControls.tsx). The shell
keeps owning the shared refs and passes them into each hook; the once-bound keyboard
handler + layer-stack registration stay in the shell (they orchestrate every cluster).
Behaviour-preserving code-motion — PlayerModal 1332 -> 890 lines.
New lib/playerModalHooks.ts:
- useYtVolume (per-account wheel/arrow volume, on shared playerVolume.ts)
- useNativeControlsYield (iframe-focus overlay yield)
- useYtBigView (F-maximise + our true-fullscreen; YT-specific, not Plex's useFullscreen)
- useYtProgress (player create + resume + 5s checkpoint + auto-watch + auto-advance)
New components/playerModalControls.tsx: PlayerTransportControls (moved as-is) + the
AutoMode/LoopMode types.
Self-E2E (localdev): play a feed video -> plays; transport bar (Auto/Loop); wheel volume
persists ({"volume":100}); F maximises + docked bar; exit big view; Close destroys the
player. Gate green: typecheck, knip, eslint (0 err), prettier, 247 vitest.
Noted a pre-existing bug (kept byte-identical here, flagged separately): the native-yield
effect removes a "blur-sm" listener but adds "blur" — the blur listener leaks.
The query string is now the source of truth for the current view, so every URL is
bookmarkable/shareable. Reverses the early minimalist-URL rule (user's call).
- urlState: urlWithParams (read-modify-write delta on the live query, each provider
owns its keys) + clearParams (strip only transient auth params) replace the whole-
query stripUrlParams; shareUrl deleted; filterParamUpdates helper.
- NavigationProvider: page + ?chan mirrored to the address bar (pushState URL arg;
history.state mechanics untouched); loadInitialPage resolves deep links
(?v->plex, ?pl->playlists, filter/?chan->feed, bare->stored landing).
- FeedFiltersProvider: feed filters mirrored to the URL, gated on page===feed.
- useHistorySubview: optional SubviewUrl mapping; PlexBrowse mirrors the sub-view to
?v=<kind>:<args> (show/season/info/person/playlist; grid+player stay ephemeral).
- PlaylistsProvider: selected playlist mirrored to ?pl on the Playlists page.
- App: the 5 stripUrlParams calls become targeted clearParams (link/oauth/admin/
access/verify/reset); the share-link hydrate effect removed.
- Retire the "Share view" feature: Sidebar + SavedViewsWidget buttons + i18n keys.
Browser tab title stays the short module/channel name (document.title untouched) —
the query never leaks into it, per the user's request.
Gate green: typecheck, knip, eslint (0 err), prettier, 247 vitest (urlState.dom.test
+9). No browser-E2E yet (most visual sprint — flagged for the epic-end review).
Fold the hand-rolled server-pref plumbing (savePrefs + local mirror + me-cache
merge + adopt-on-login) into a single usePref<T>(serverKey, default, opts) hook,
plus useSavePref for dynamic multi-key patches.
Migrated (6 savePrefs call sites + 2 duplicated adopt effects -> the hook):
- FeedViewProvider: view
- App: filterCollapsed, playlistsCollapsed (+ their adopt block removed)
- PlayerModal: playerAutoAdvance, playerLoop
- plexDetailUi: plexInfoArtBg/Cast/Related (savePref via useSavePref)
Left as-is by design: panel layouts (a dynamically-indexed Record, not one key),
language (i18n store, no React state), PrefsProvider (debounced multi-field
auto-save + baseline echo-suppression - a different model).
Behaviour-equivalent (net -84 LOC at the call sites). usePref.dom.test covers
the three seed sources, persist path, debounce, adopt, parse, and useSavePref.
Frontend gate green: typecheck, knip, eslint (0 err), prettier, 238 vitest.
An <img> can't send the X-Siftlode-Account header, so the poster.jpg request
resolved to the session-default account and _accessible_job 404'd it for any
download owned by a different (per-tab) account — every card then fell back to
the source's remote thumbnail, which for Facebook is an expiring fbcdn URL, so
the Library showed blank thumbnails in a multi-account session. The 0.69.1
local-poster-primary change made this the primary image, exposing it broadly.
Append ?account= to the poster URL via a new api.posterImageUrl(), the same
wallet-gated header-less selection downloadFileUrl / storyboardImageUrl already
use (resolved_user_id reads ?account= for exactly these contexts).
Three prod bug fixes: local-poster-primary Library thumbnails, viewport-scaled
feed read-ahead (fixes the fast-scroll "Load more" stall), and the channel About
popover fitting/blank-line cleanup.
Review follow-up. The docstring said "channel/video description" but the helper is
wired only to the channel store sites; clarify it is deliberately channel-only
(video descriptions are user-facing prose where paragraph breaks carry meaning,
unlike a channel's metadata block) so it doesn't read as an asymmetric fix. Also
document that str.splitlines() folds CR/CRLF and Unicode line separators to "\n",
and lock it with a test.
Review follow-up. The viewport-scaled lookahead was unbounded, so a tall window
prefetched several feed pages on every mount / filter change before any scroll —
wasted work on the app's heaviest query. Clamp it to MAX_LOOKAHEAD_ROWS, and move
the policy into a pure readAhead.ts (readAheadLookahead / shouldPrefetchNext) with
unit tests covering the floor, the scaling, the cap boundary, and the fetch trigger
— the core of the feed-scroll fix now has coverage instead of only manual E2E.
Keyset pagination is strictly serial (a page needs the previous page's cursor)
and the read-ahead only fired within a fixed 4 rows of the loaded end, pulling
one 60-item page per cycle. A fast free-spin flick (MX Master & co.) out-scrolls
that tiny lookahead, lands on an empty bottom, and waits out a chain of serial
round-trips — the multi-second "Load more" hang. Scale the lookahead to the
rendered row count (PREFETCH_VIEWPORTS screenfuls); since the effect re-runs when
a page settles it chains, keeping a couple of screens buffered ahead of the fold
so the content is usually already there. Bounded, and a no-op for finite lists.
YouTube channel descriptions pad their contact/link blocks with runs of blank
lines, which the About popover renders verbatim (whitespace-pre-wrap) — wasted
space and storage, and noise in the search_vector. Add normalize_description()
and apply it at both channel store sites (full details + initial import) so the
DB holds the clean text. New channels are clean immediately; existing rows heal
on their next metadata re-sync. Unit-tested in test_utils.
At elevated zoom the CSS viewport shrinks; a long channel About wanted its fixed
max-h-112 (448px) height, so when floating-ui flipped it above the trigger its
top rendered above the viewport edge, clipped and unreachable (the inner
overflow-y-auto can't scroll past its own top). Enable the popover's fitHeight so
the `size` middleware caps the panel to the available space. Because the surface
splits into an outer positioned element and an inner styled/scroll wrapper, the
middleware now also publishes the available height as a --fit-max-h custom
property the inner scroller consumes via maxHeight: min(28rem, var(--fit-max-h)),
keeping the 28rem design cap on a tall viewport and shrinking to fit on a short one.
The Library card used the source's remote thumbnail_url as the primary <img>
src and only fell back to our self-hosted poster on error. For Facebook
downloads (the bulk of a typical library) that URL is an fbcdn signed link that
expires within days, and is also blocked by ad-blockers / Brave Shields on the
facebook domain — so the thumbnail broke even though the local poster was
present on disk. Flip the priority: serve /api/downloads/{id}/poster.jpg first
(always present, never expires, same-origin) and keep the remote as the fallback
for the rare poster-less asset.
Round-3 review of the S3 config-fold, all in routes/scheduler.py:
- stale docstring: "Persisted to app_state" -> "Persisted via sysconfig" (the
batch moved stores in B-core-11; the comment didn't follow).
- drop the manual min/max check in the PATCH — sysconfig.set_value already
validates against the same spec bounds; catch its ValueError -> 400, matching
the config PATCH pattern (bounds enforced in one place).
- fetch sysconfig.spec(...) once into a local in the GET instead of twice.
No behaviour change beyond the 400 message wording (untested path). 368 pass.
Restores CLAUDE.md's canonical transaction rule ("the handler commits; helpers
flush; only quota owns its session") on the config path: sysconfig.set_value /
sysconfig.reset and state.set_sync_paused now flush instead of committing, so a
change lands in ONE transaction with the audit row the route records for it —
previously the helper's internal commit split them, and a crash between left the
mutation persisted with no audit trail.
All callers already commit (the config PATCH/DELETE + audit, the sync pause/resume
+ audit, the scheduler maintenance PATCH); the setup wizard, which relied on the
internal commit, gets an explicit db.commit() after its loop. apply_interval is
deliberately left committing — it performs a live APScheduler reschedule that must
follow the DB persist, so it owns its own unit of work (a legitimate exception,
like the download service transitions). New test locks the flush-not-commit
contract (a rollback before the caller commits discards the change). 368 pass.
The admin-tunable maintenance re-validation batch lived in its own app_state
column with a hand-rolled override-or-default reader in app.state — a fourth
config store duplicating the sysconfig SPECS pattern. Move it to a sysconfig key
(`maintenance` group, min=100 max=100_000): the reader (sync/maintenance.py) and
the Scheduler dashboard (routes/scheduler.py PATCH + GET) now go through
sysconfig.get_int / set_value / spec, and app.state loses get/set_maintenance_batch
+ the MIN/MAX constants + the settings import. Migration 0070 carries any existing
override into the system_config store before dropping the app_state column
(reversible; restores + copies back on downgrade). Reuses the existing
sysconfig.spec() for the dashboard's min/max, so the bounds have one source.
Full lane 365 pass (migration drift + reversibility exercised), ruff clean.
None are referenced by the SPA or tests; the Scheduler dashboard's "run now"
covers every manual trigger. Removed: POST /api/sync/{rss,backfill,enrich}
(+ the now-dead _user_channels helper and three sync.runner imports),
POST /api/tags/recompute (+ its admin_user / run_autotag_all imports), and
GET /auth/me (a lesser duplicate of the canonical /api/me in routes/me.py).
This also retires a latent bug: POST /api/sync/backfill reset backfill_done /
backfill_cursor on already-fully-backfilled channels (tipping them back to
"needs full history") for up to 25 channels per curl. Full lane 365 pass.
This codebase leans on "why" comments as its architecture doc, so a header that
claims the opposite of the code below it is worse than none. Fix the seven the
review flagged: channels.py (subscribe/unsubscribe shipped), playlists.py +
sync/playlists.py (YouTube two-way sync + write-back shipped), setup.py (drop the
"epic 6c" ref — the wizard steps exist), config.py ("auth._client_ip" ->
"routes.auth._client_ip"), db.py ("routes/plex.py" -> "routes/plex/" after the
package split), sysconfig.py (the "Phase C" note — the watch-sync job that reads
plex_watch_sync_interval_min has landed; clarified it's a boot default, not a knob).
Docs only.
Round-2 review of the R1 fixes found that the two-independent-limiter progress
writer issued a redundant heartbeat every interval during an ACTIVE download: a
percent change writes progress (which already refreshes updated_at, the stall
watchdog's liveness source), then the sub-integer calls that follow fire the
separate beat budget — ~2 DB writes/interval instead of the throttle's intended 1.
Replace the second limiter with a shared `last_touch` clock (last DB write OR
beat). Progress writes keep their own `allow_write` budget (so a beat still can't
delay a real write — the R1 concern), but the heartbeat now fires only when
nothing touched the row for a full interval. Active download → ~1 write/interval;
a genuinely stuck re-encode → 1 heartbeat/interval. New regression test:
an unchanged-percent call in the same interval as a write does NOT heartbeat.
ruff clean, full DB-lane 365 pass.
Round-1 review fixes on the E3 branch:
- prune partial-fetch (correctness): `_paginate` now reports whether it reached
the server's reported `total`; `_prune_stale` prunes only on a COMPLETE
non-empty listing. A truncated fetch (a mid-sequence empty/short page before
total — a transient Plex hiccup) no longer deletes the rows it merely failed
to list. New test: a listing that claims 5 but returns 1 prunes nothing.
- `_prune_stale` (robustness): `stats.get("pruned", 0) + 1` — no KeyError when a
caller's stats dict omits the key.
- service transitions (conventions): pause/resume/redownload use the JobStatus
StrEnum instead of loose "queued"/"paused"/"error" literals, matching cancel.
- ffmpeg progress writer (correctness): a stuck-percent heartbeat now runs on its
OWN 1/interval budget, so it can't consume the progress-write slot and delay a
real percent change by up to an interval.
- backend/app/README.md (conventions): reword the transaction-ownership rule to
quote and extend CLAUDE.md's canonical ("handler/job-wrapper commits; helpers
flush; only quota owns its session") instead of stating a contradicting
"helpers MAY commit" carve-out.
ruff clean, full DB-lane 364 pass.
The layering rule ("request-only logic in routes/; scheduler+worker-shared logic
in the plex|downloads|sync packages; cross-cutting primitives as flat core
modules; extract at the SECOND consumer") was real but unwritten — it lived only
in three module docstrings and a one-line README mention. Collect it, plus the
transaction-ownership rule (a mid-operation helper stages, the caller commits),
the atomic-counter / JobStatus-StrEnum conventions, and the one-home-per-config
rule, into backend/app/README.md. Add docs/development.md (run locally + the gate
commands + branching), so a new session/contributor has one place to look instead
of copying whichever pattern they happen to find first.
worker.py (~1090 L) mixed the PARENT supervisor (claim + supervise + the process
loop) with the CHILD pipeline (the yt-dlp/ffmpeg download+edit that runs in the
spawned subprocess). Extract them:
worker.py 1090 -> 475 parent: claim/supervise/loop
downloads/pipeline.py (new 592) the child pipeline (_download/_process_edit +
hooks/progress/ffmpeg helpers + _Aborted)
downloads/jobdb.py (new 73) the short-lived-session helpers both sides
share (_set_job/_job_status/_touch_job/
_requeue_if_running/_reset_asset_pending +
the staging-dir paths)
The graph is one-directional (runner -> pipeline -> jobdb; worker -> jobdb; no
worker<->pipeline edge) — the parent never calls the child directly, it spawns
runner.py as a subprocess. Consumers rewired: runner import, and two tests follow
the moved symbols (_media_info/_produced_file -> pipeline; the ffmpeg-callback
patches target pipeline where the names are looked up).
Pure code motion, verbatim bodies. ruff clean, full lane 363 pass (unchanged).
request-access / demo / register / verify / verify-resend / password-login /
password-reset(request|confirm) / set-password each took an untyped `payload:
dict` and hand-picked fields with `.get(...)`. Replace with five small BaseModels
(EmailIn, EmailPasswordIn, TokenIn, TokenPasswordIn, SetPasswordIn) so FastAPI
validates the body shape and publishes the schema. Fields are `str | None` to
preserve exact behaviour — a missing/null field still coerces via the existing
`(... or "")`, no stricter 422s. Green under the auth-session suite (7), ruff clean.
pause/resume/cancel/delete/redownload each hand-rolled their asset bookkeeping
inline in the route (release, failed-asset reset, the 20-line fresh-asset
rebuild), duplicating logic the worker/GC also touch. Move each transition into a
service.* method (service.pause/resume/cancel/delete/redownload) that owns the
mutation + its commit; the routes keep only auth, the HTTP 409 guards, and
serialization. Drops the now-dead _set_status route helper and two stale imports.
Pure behaviour-preserving code motion (routes -56 lines). Green under the E3 S2
transition net + the full downloads suite (363 pass), ruff clean.
Pins the observable HTTP behaviour of pause/resume/cancel/delete/redownload
(status changes, asset release, failed-asset reset, fresh-asset rebuild) before
the inline route logic moves into service.* methods. Green on the current routes.
The supervisor kills a job that writes nothing for download_stall_timeout_seconds
(150s) and labels it a "network" stall. But the ffmpeg progress writer only wrote
on an integer-percent CHANGE, so a re-encode that sits on one percent for minutes
(AV1/VP9 -> H.264 or a crop on the CPU-only prod host) produced no row write and
was killed mid-encode as "stalled" — and the retry stalled the same way.
Fix: the writer now heartbeats (`_touch_job`, bumping updated_at without touching
the progress bar) once per interval even when the whole percent is unchanged, so
a live-but-quiet re-encode keeps a fresh updated_at. Reorders the rate-limit gate
first so a burst still costs one DB op — either a progress write or a heartbeat.
Pure-logic test with an injected clock: three stuck-at-10% intervals write no new
progress but heartbeat each time. Full lane green, ruff clean.
Two jobs on the same shared asset (same video+format queued twice, or by two
users) starved the worker pool: worker A downloads the asset; worker B claims the
sibling job, finds the asset `downloading`, requeues it, sleep(2)s, and re-claims
it on the next tick — burning a whole worker slot behind one in-flight asset for
the entire download (at concurrency=2, the queue stalls).
Fix: the claim SQL now excludes any job whose asset is already `downloading`
(`NOT EXISTS … media_assets.status='downloading'`), so a competing sibling simply
waits until the asset settles and the workers pick up unrelated jobs meanwhile.
The `_process_job` busy/lost-race branches drop their `time.sleep(2)` — the
exclusion keeps a requeued job out of the claim window, so there's no spin.
TDD: the new test failed on the old claim (claimed the sibling), passes now.
Full lane green, ruff clean.
MediaAsset.ref_count (how many jobs hold a shared cache asset) was a Python
read-modify-write at four sites (enqueue, enqueue_edit, release_asset, the
redownload route). Two concurrent enqueues of the same (source,format) both read
the same value and write the same +1 → the count ends up one short → the first
release drives it to zero and deletes the file out from under a live holder.
Replace all four with atomic DB ops: incr_ref_count (`ref_count = ref_count + 1`)
and decr_ref_count (`greatest(ref_count - 1, 0)` RETURNING the new value, so the
release decides whether to free the asset from the post-decrement count while
holding the row's write lock — Postgres serialises concurrent releases on that
lock, closing the double-free). Pure DB-atomicity change, no semantic shift.
Green under the E3 S2 ref_count net (5) + full lane (356 pass), ruff clean.
peter