Phase 2b + 3 of the metadata overhaul (plan §2.4, §3.1-3.7).
Auto-playlist collections (§2.4): the scanner turns obviously-playlist
sidecar series (explicit '(Reading Order)'/chronological/publication/
in-order/timeline markers only — precision over recall) into curated
static collections: upsert by view_settings.imported_from_series then
name (rename-safe), position set ONLY on insert (clean integers; 1.5/1a
stay unpositioned rather than guessing), membership add-if-missing,
never removed or re-ordered by rescans, provenance in description +
view_settings, show_on_dashboard true (dashboard-eligible by design),
'scanner.auto_playlist_collections' setting (default on, Settings
Registry + schema seed).
Ordering (§3.1-3.2): collection listings order position ASC NULLS LAST
then added_at ASC (was added_at DESC — walked playlists backwards);
PUT /api/collections/:id/items/order applies full-order rewrites
(owner-only, service-gated).
hide_finished + Up Next (§3.3-3.4): GetCollectionItemsForDashboard
gains viewer_user_id + hide_finished (LEFT JOIN reading_progress,
COALESCE percentage < 0.999) and viewer_percentage rides the row for
card graying; GetCollectionUpNext serves the collection's reading-queue
head with the family-lens visible-library array enforced.
Dashboard (§3.5): user collections are dashboard-ELIGIBLE BY DEFAULT —
the show_on_dashboard gate (never writable for user rows since the
column shipped) is gone from GetUserCollectionsForDashboard; hiding
stays dashboard-prefs (hidden_collections) territory; hide_finished
filtered-everything now emits a Complete section instead of silently
vanishing; sections JSON carries is_playlist/complete.
Series page ordering hardening (§3.6): GetSeriesBooks tiebreaks by
title ASC — NULL/tied numbers previously returned heap (scan) order,
which is what the user saw.
Frontend custom-section-builder note: the builder has sent
show_on_dashboard: true since its creation; the API never bound it.
User-row visibility is now intentionally prefs-governed, so the field
stays unbound by design (documented in code).
Pins widened (docs/contract_pins.md): collection detail + up_next;
dashboard sections + is_playlist/complete; new reorder endpoint
recorded.
Verified: TestPlaylistCollectionsEndToEnd (new, full e2e: sidecar
series split, collection auto-creation with position 7, rescan
idempotency, owner-only reorder, finished-filter + completion marker +
Up Next drain) plus the full affected integration sweep green.
Phase 2a of the metadata overhaul (plan §2.1-2.3, §2.5-2.9).
The headline bug: ABS writes sidecar series as an array of STRINGS
(["The Witcher #3", ...]); the parser only accepted {series, sequence}
OBJECT arrays, so every ABS-matched book silently lost its series (found
live: 9 sidecars, zero series ingested; only folder-structure Malazan
survived). parseSeriesCandidates now normalizes string arrays, object
arrays and Libation plain strings.
Three-way series assignment (plan §2.2):
- primary bibliographic series -> series/series_number columns
- additional real series (Drizzt: Icewind Dale #1 = Legend of Drizzt #4)
-> alternate_info JSONB, comic-established shape
- ordering constructs ('The Witcher (Reading Order)') -> PlaylistSeries
candidates; NEVER the series column. Detection is explicit-marker-only
((reading order|chronological|publication order|in order|timeline) as
parenthetical/suffix) — precision over recall; a series merely
containing 'timeline' mid-name stays a series.
Sequence policy: leading-number extraction ('Book 2' -> 2, '2,
Dramatized Adaptation' -> 2, '1a' -> 1); lossy extractions preserve the
raw text in alternate_info.series_sequence_raw.
Smart genre (deterministic lexicon): compound Audible blobs split
('Epic, Action & Adventure, Military, Sword & Sorcery' -> 4 candidates),
alias-normalized, format noise demoted ('Audiobook' never wins),
most-specific canonical genre takes the genre column, all candidates
stay in tags.
Language: display names normalize to ISO 639-1 on ingest; ROOT-CAUSED
the update-path drop — CreateMediaItem call site never set Language
(explicit NULL over the column default), the update path did; create
now carries it.
Title-derived series fallback (§2.7): 'Baptism of Fire: The Witcher,
Book 3' 2-level folders split conservatively (only when the post-colon
tail matches ', Book N'), subtitle parsed for series+number, blanks-only
precedence, matching-name number fill, zero display mutation. Works
with no sidecar and no network.
Ingest fixes: subtitle/explicit land in their columns (audio tag
subtitle stops joining into title); full authors[] array (was [0]-
only); sidecar descriptions sanitized via bluemonday UGC policy
(vendored).
metadata_overrides: verified scan-update path already applies
ApplyMetadataOverrides; subtitle/explicit/authors covered by the Phase 1
override adaptation.
Tests: new series_parsing_test.go (string-array sidecar e2e, Drizzt
alternate_info, lossy raw preservation, playlist classification,
title-derived fallback incl. no-mutation + blanks-only, genre lexicon,
language map); audio-tag subtitle pin updated to column behavior;
calibre/ABS 2.5-series_index pins widened per float change (changelog'd
in phase 1).
Deferred to 2b: auto-created playlist collections (§2.4) — settings
toggle, collection upsert, ownership.
Phase 1 of the series/collections/metadata overhaul
(~/.opencode/plan/series-collections-metadata-overhaul.md).
Schema (in place, idempotent):
- media_items.series_number INTEGER -> DOUBLE PRECISION: real-world
ordinals are decimals (0.5, 1.5 novellas); INTEGER silently truncated
them (calibre 2.5 pinned as 2 in tests).
- + subtitle TEXT, explicit BOOLEAN (sidecar ingest; ABS explicit /
Audible isAdult).
- + authors/authors_search/publishers/publishers_search TEXT[] NOT NULL
(narrators A2a precedent). Arrays are write truth; author/publisher
varchars become trigger-regenerated display strings
(sync_author_publisher_display) so every varchar consumer (trgm
search, facets, API, OPDS/Kobo) keeps working unchanged.
- Row-level NULL normalization for the new arrays in
set_library_type_name (A2 lesson: Go nil -> explicit NULL -> 23502).
- Backfills ARRAY[author]/ARRAY[publisher] — deliberately no
comma-splitting ('Tolkien, J.R.R.' would corrupt; scanner kept only
authors[0] historically).
- collection_items.position INTEGER + (collection_id, position) index
for playlist ordering.
Go: sqlc regen; MediaMetadata/handler params gain Subtitle/Explicit/
Authors/Publishers (legacy singles still accepted, arrays win);
SeriesNumber int32 -> float64 end to end; metadata_overrides adapted
with legacy override keys ('author'/'publisher') preserved so existing
user overrides survive; bulk author edit writes the array.
Pins widened (docs/contract_pins.md): raw sqlc row key set + the six
new columns; changelog entry added.
Verified: unit suite green; integration sweep (bulk/smart collections/
scanner/stats/sync/queue/calibre/pins/audiobooks) green against the
shared dev DB after in-place migration. Pre-existing unrelated red:
TestOwnershipAndAdminTestSuite/TestAdminCreateUser timezone inheritance
fails identically at the pre-change commit (live shared state).
Multi-file book ingest: a directory of ≥2 audio files (recursively —
disc-part folders like CD1/Disc 2 merge upward, siblings never merge)
ingests as ONE book whose file_path is the book-root directory; a zip
of audio tracks is its own book (file_path = the archive). Both write
the documented chapters abstraction {index,title,start,end} into
audio_metadata and add additive keys: layout ("folder"|"zip") and a
tracks[] manifest (per-track path, global-seconds start/end, duration,
size). Pre-grouping one-track strays under a book root are absorbed on
rescan (annotations cascade). Rescans take a stat-only fast path
(track count + total size + known durations unchanged → no re-probe —
a 1189-track book must not re-ffprobe every auto-scan); a zero-duration
book counts as changed so a ffprobe-equipped rescan fills durations in.
Folder-book roots count as present in the archive lifecycle pass, and
per-item rescan (RescanMediaItem) routes multi-file books through a
book-level refresh — the generic updater would read the root/zip as if
it were the book file and clobber format_group with "unknown".
Serving: GET /api/media-items/:id/chapters gains additive layout +
tracks keys (urls → the new endpoint). New GET
/api/media-items/:id/audio/:trackIndex streams one track — folder
tracks served from the real file (full Range via ServeContent), zip
tracks via a reopen-and-skip ReadSeeker over the entry (deflate has no
random access; acceptable at audio bitrates; stored entries stay
section readers). Both endpoints gate on library visibility (403 on
hidden libraries — family-lens rule). ServeFile and OPDS DownloadBook
refuse directory paths (folder books have no single-file download).
Web player (next commit) consumes the manifest; progress/bookmarks/
deep-links keep their global-seconds coordinates, so the server-side
progress model is untouched. sync learns FormatGroupAudiobook
(percentage passthrough in ConvertProgress); detectFormatType stops
reporting "unknown" for audio.
Metadata ingestion (Batch B) — read everything available, degrade
gracefully, documented precedence sidecars → folder structure →
embedded tags → filename: ffprobe tags are now a case-insensitive
lookup map (freeform keys pass through verbatim); composer fills
narrators (Audible's own convention, kept as ONE string — no reliable
multi-narrator delimiter); grouping + Audible freeform atoms
(SERIES/SERIES-PART/SUBTITLE/ASIN/ABRIDGED) fill series/index/
subtitle-join/ASIN/abridged (explicit sidecar abridged-false is
guarded); date/genre fall back to tags; album/album_artist/artist
fill title/author. Genre persists at create for all formats.
Embedded cover art (mp3 APIC, m4b covr, flac picture) extracts via one
optional ffmpeg call as a "<book>.cover.jpg" sibling — sidecar covers
win. CUE sheets (FILE-matched, INDEX 01 at 75fps) are the lowest-
priority chapter source under sidecars and embedded m4b chapters. A
lone m3u/m3u8 in a book root imposes playlist ordering + #EXTINF
names; (disc, track) tags reorder tracks when coverage is complete.
extractMetadata's default branch no longer pre-fills the filename as
title (tags must outrank it) — final filename fallbacks now exist on
BOTH the create and rescan paths (TestRescanKeepsFilenameTitle pins
that rescans cannot blank a title); tagless zip books take the zip's
own name, not their parent folder's.
Accepted containers widen to .m4b .m4a .mp3 .flac .zip .opus .ogg .oga
.aac .wav with real media types registered (audio/ogg per RFC 7845 for
Opus-in-Ogg) — all browser-playable; .wma deliberately excluded.
Tests: unit tests for CUE parsing, playlist hints, tag fallbacks
(synthetic ffprobe reports — ffmpeg cannot write Audible freeform
atoms), ordinal parsing, tag ordering, natural sort, grouping rules;
integration suite (11 tests) over the live dev DB: folder/zip ingest +
idempotency, stray absorption, chapters manifest, per-track streaming
with Range, hidden-library 403s, embedded covers + sidecar-wins, CUE
chapters, embedded m4b chapters, playlist ordering, tag fallbacks, all
five new containers with content-type assertions, rescan title pin.
Fixture media is real committed-format binary content living untracked
under internal/services/testdata/ (gitignored by policy; recipes in
docs/contributing/development.md → Media fixtures). Test image now
ships ffmpeg to match the runtime's audio toolchain.
ScanFolders never checked its context, so a cancelled job's walk ran
to completion no matter what the worker's cancel did.
- ctx checks at every stage boundary (file-counting pass, per folder,
before and during the archive pass) and inside the walk callback
(fs.SkipAll): the file currently being processed finishes, then the
scan aborts with context.Canceled, which processJob classifies as a
cancelled job rather than a failed one
- the archive/purge pass is skipped entirely when the scan was
cancelled. It only visits what the walk visited, so after a partial
walk the unvisited (but on-disk) files would be treated as missing,
archived, and eventually purged. Cancelling is a UI convenience and
must never destroy library data.
A2 made narrators/narrators_search NOT NULL DEFAULT '{}' (86f0af6), but an
explicit NULL in an INSERT/UPDATE column list bypasses the column default
— the API media-create path (POST /api/media-items without narrators)
500'd on every call, taking the whole integration suite down with it
(ISBN tests, capture seeds, all direct-DB seeds).
- set_library_type_name() trigger now coalesces NULL narrators/
narrators_search to '{}' at the row level, and its update trigger
widens from BEFORE UPDATE OF library_id to BEFORE UPDATE so every
write path is covered
- defense in depth at the callers: handler create/update normalize nil
to empty slices (normalizeNarrators), scanner seeds the same
(nilToEmpty) for files that carry no narrator credits
- analytics device-usage tests move to the dedicated per-test user
(the shared admin's device list accrues live rows mid-suite — the
documented testuser flapping class)
A2a (metadata round): narrators TEXT[] + narrators_search (tags
pattern: accumulator + GIN pairs) + abridged bool on media_items;
scanner fills from the Libation/ABS sidecar (narrators verbatim,
abridged flag) with audio-payload promotion; editorial fields ride
the real columns while audio_metadata stays scan-derived (duration/
codec/chapters). Detail/edit/save paths carry the fields; the web
edit dialog grows an Audio section (Narrator(s) comma-input, Abridged
toggle, scanned duration read-only); search weights + narrator filter
(word_similarity over narrators_search) + narrator autocomplete added.
A2c (per-media-type wording): copy helpers keyed on format_group —
Listen Now, Mark Complete/Not Complete, Listening Progress, Your
Listening Stats, Time Listening, Time listened (pages tile swapped for
audio), Position H:MM:SS / total H:MM:SS on detail + progress pages
(duration parsed from audio_metadata). Dashboard: system collections
swap to Continue Listening / Recently Listened at DISPLAY time when
the audiobooks library is selected (stored names unchanged; restores
keep working); week card = Listening Time / Sessions / Books Touched;
cover-corner badges identify audiobook (headphones) / comic / manga
cards on mixed grids — books stay unbadged; hover action icon follows
the media type.
A2b (player): the scrubber binds value to the playhead with an explicit
scrub guard (the handle previously froze at its initial max); header
row = reader-style back arrow + Chapter n/total launcher; chapters
open in a floating top-down drawer (current chapter highlighted, page
never shifts); Skip/Speed rows share one label-left layout; honest
wall-clock session accounting (playing-only deltas, paused flush).
A2d (bookmarks): note-bearing time bookmarks ride the existing
media_bookmarks substrate (notes column + sync-aware service already
there) — audio locator convention audio:<seconds>, chapter_number
filled, auto-title '<chapter> — H:MM:SS', capture popover with optional
note, drawer with jump/edit-note/delete. Zero server changes needed.
Verified live on the Libation sample: narrators backfilled by rescan;
PUT edit persisted + overrides detected (narrators, abridged); force
rescan preserved the user edit; reset-to-scanned-of-defaults restored
truth; narrator filter/autocomplete scoped by library; dashboard
listsening wording + badges render; bookmark save with note deduped to
one row.
Phase 1 (foundation): 'audiobooks' library type seeded (schema + DB);
audio_metadata JSONB on media_items (the kobo_metadata precedent —
only audio paths read it); reading_progress.audio_offset_seconds for
the honest {chapter, offset} locator; extensions/mimes registered for
ALL breadth formats (m4b/m4a/mp3/flac — deliberate per the DOC/LIT
doctrine, m4b scans richly first); classifyFormatGroup 'audiobook'
case (gotcha 39 recomputes on rescan); Go mime table extended at boot
so media elements accept the streams; ffmpeg/ffprobe in the image
(8.1.2 — also the xHE-AAC identification tripwire).
Phase 2 (ingest): sidecar-first (Libation/ABS metadata.json —
narrators/ASIN/curated chapters), ffprobe fallback/filler (duration,
bitrate, codec/profile, embedded chapters). Fixed three real
parser brittlenesses the Libation sidecar exposed: series accepts
string OR array-of-objects, publishedYear accepts number OR string,
ffprobe chapter timings accept number OR string (flexFloat). Folder-
structure fallback now runs on the UPDATE path too (rescans were
clearing sidecar-absent series/author); audio facts re-derive on
every rescan (gotcha 39).
Phase 3 (playback + sync): GET /api/media-items/:id/chapters (the
format-abstraction list); streaming rides the existing cookie-authed
Range /uploads path; PUT progress carries audio_offset_seconds +
elapsed_seconds (honest wall-clock playing time) — the reading-
history capture prefers player-reported elapsed over the inter-push
delta, same 2h ceiling; reading_mode='audio' marks the row.
Phase 4 (web player): dedicated audio reader page (foliate not
involved) — cover, chapter title, whole-book scrubber, skip ± (chips
1/5/10/15/30s, default 10s), speed (0.75×–2×), chapter list with
jump-to, Media Session lockscreen/notification transport, periodic
playing-only progress pushes, position restore on open.
Verified live: ingest of the Libation sample (Gardens of the Moon —
title/author/series/cover/date from sidecar+folders, 34 chapters,
26h duration, aac/LC); chapters endpoint; the reader route serving
the player; playback with position restore (0:57 round-trip);
progress rows in audio mode; wall-clock session rows in
reading_history.
.IMAGE — extensions removed from AllowedExtensions (scan gate),
bookExtensions, MimeTypes and sync/format.go maps: .doc/.lit files
are no longer scanned or indexed. classifyFormatGroup gains the
RTF and PDB reflowable arms that were missing when those rungs
shipped (rows only reclassify on creation). Scanner docs updated.
DOC + LIT have no credible JS tooling (mammoth is docx-only; LIT
needs LZX and its DRM variants are dead) and text-extraction-only
support would misrepresent what the reader can do. Verified: probe
.doc/.lit files watched but never scanned; probe .txt control
scanned; TestClassifyFormatGroup extended and passing.
Docs change granted in-session by the user (extensions + format
docs).
.docx is accepted for ingest but the format-group switch had no case
for it, so every DOCX row stored format_group 'unknown' with
is_reflowable=false. Extract the classification switch into a pure
classifyFormatGroup helper with a table test, and classify .docx
reflowable like the other reflowable text formats (.rtf/.doc stay out
until they are readable client-side). Existing rows: dev alice (DOCX)
reclassified by hand; production rows reclassify on rescan.
Previously the scanner's SHA-256 dedup was library-scoped: moving a book
between libraries created a duplicate row (new ID) while the old row went
missing and archived after two scans, orphaning reading progress and
annotations from the file that users still see.
processMediaFile now falls through to cross-library detection when the
same-library hash lookup misses:
- GetMediaItemsBySHA256AndSameLibraryType returns candidates in other
same-type libraries; each candidate's file is stat'd through ITS OWN
library's folders (the old existence check stat'd against the current
scan's folder tree, which is meaningless across libraries).
- File gone -> it is a move: the candidate must pass the target library's
type rules (ValidateMediaItemForLibrary), then the row is repointed via
MoveMediaItemToLibrary with the recomputed relative path. Reading
history, annotations, and collections follow automatically because the
row keeps its ID. Incompatible formats (e.g. a reflowable EPUB into a
manga library) are rejected with a processing issue instead of being
force-imported; the upsert on (media_item_id, issue_type) keeps
repeated scans from spamming duplicates.
- File still present -> deliberate multi-library copy: fall through to
normal import so both libraries keep independent rows.
Candidate selection is factored into selectMoveCandidate (pure function,
unit-tested in media_scanner_move_test.go): input arrives pre-ordered
(archived first, then most missing scans, then oldest) and only
candidates whose file is verifiably gone qualify, so deliberate copies
are never repointed.
Fixed-layout EPUBs lean on the reading_direction column (the web reader
forces book.dir = rtl from it when the file didn't set direction
itself), but the scanner never populated it for EPUBs - only ComicInfo
fed it. Meanwhile real Japanese EPUBs declare page-progression-direction
on the OPF spine, which foliate reads client-side but nothing stored.
Read the spine attribute in the structured OPF parser and map it into
ReadingDirection in parseOPFContent (EPUB2/3, case-insensitive, plus
'right-to-left'/'left-to-right' spellings); undeclared stays empty
rather than forcing ltr, preserving the editor's Auto default. Sidecar
OPFs are metadata-only documents without spines, so the Calibre path is
a no-op. The merge gap-fill copies an embedded-only direction into a
blank sidecar field, and hand-set values keep winning through the
existing OverrideReadingDirection protection.
Tests: declared rtl/RTL/ltr, undeclared and unknown values staying
empty, plus sidecar-wins vs embedded-fills merge cases. Existing manga
EPUBs declaring rtl (verified live in-library) pick the value up on
their next scan, feeding the API and reader config mobile clients
consume.
Same gap-fill rule as the EPUB path, against the PDF's embedded Info
dictionary via a readPDFInfoDict helper reusing extractPDFMetadata's
field conventions (creator falls back to author, subject maps to
description, producer to publisher, keywords to tags, plus page count).
Sidecar values always win; unopenable PDFs skip silently.
TestMergeMetadataPDFGapFill uses an Info-bearing hand-built PDF fixture
(shared with the sidecar-cover test) and asserts the sidecar title is
kept while author/description/publisher/tags/page count fill in.
A sparse metadata.opf/metadata.json (title only, no description) left
books thin even when the file itself carried rich data: the embedded
extractors only ran when no sidecar existed at all. Now mergeMetadata
fills blanks from the book's own OPF - title, author, description,
publisher, language, ISBN, ASIN, series/number, publish date, tags,
contributors - while sidecar values always win and unparseable files
skip silently. Also covers .kepub, which the merge previously ignored
while the extractor already supported it.
Adds TestMergeMetadataEPUBGapFill asserting both directions: sidecar
title/author survive, embedded description/publisher/language fill in.
When the SHA-256 dedup found identical content already in the library,
the scan skipped the file as a duplicate - and after files moved
between folders the old row kept its stale path, cycled missing ->
archived, and the new path never took. The archive feature turned the
old destructive move behavior into a stuck move instead.
Now the dedup branch stats the old location: if it is gone, the book
was MOVED, so the row is repointed (file_path, file_size) with archive
state cleared and reading history intact. 'Skip as duplicate' only
applies when the old path still exists (a true copy). Verified live: a
moved EPUB kept its single row, followed the file, and never entered
the missing/archive cycle.
A full rescan wiped cover_image_path for every PDF/EPUB living in a
metadata.json (or metadata.opf-less) folder with no cover.jpg next to
the book: the sidecar branches returned early after findSidecarCover
missed, and mergeMetadata has no PDF/EPUB cover logic of its own. Four
books lost their thumbnails while their {file}.cover.jpg files still sat
on disk - most visibly the Audiobookshelf-managed No Starch titles.
Both sidecar branches now fall through to an embedded-cover fallback
(PDF via extractPDFCover, EPUB/KEPUB via extractEPUBCover) whenever no
sidecar cover file exists. Comics are untouched: mergeMetadata already
extracts their covers from the archive.
Adds TestSidecarCoverFallback with a hand-built one-page PDF carrying a
JPEG XObject plus a metadata.json sidecar, asserting the sidecar title
wins while the cover still comes from the file. Verified live: rescans
restored all four dereferenced covers with no leftover rows.
Reset to Scanned cleared the overrides row (successfully) but then set
the in-memory copy to nil before handing it to updateMediaItem. pgx
encodes a nil []string parameter as SQL NULL, so the follow-up UPDATE
wrote metadata_overrides = NULL into the column's NOT NULL constraint
and the whole rescan failed with:
failed to update media item: ERROR: null value in column
"metadata_overrides" of relation "media_items" violates not-null
constraint (SQLSTATE 23502)
Two changes:
- RescanMediaItem's reset path assigns []string{} instead of nil, with a
comment explaining the pgx nil-to-NULL encoding trap.
- updateMediaItem routes the override set through utils.MergeOverrides,
whose contract guarantees a non-nil slice, so no caller can write
NULL into that column again (verified against pgx v5.9.2 source: a
scanned '{}' round-trips as non-nil in both directions; the nil could
only come from our own assignment).
The plain Rescan path never hit this - only Reset did. Worse, the reset
is the remedy when a book's cover_image_path override pins an empty
cover, so the crash also blocked the way out of that state. After this
fix, a plain rescan on an already-reset book repopulates scanned
metadata and extracts the cover.
Adopt Calibre's reading conventions for the Dublin Core metadata that
parseOPFContent now pulls from the structured OPF parse:
- Titles: EPUB3 title-type selection (prefer 'main', join a distinct
subtitle with ': ' exactly as Calibre stores it). There is no separate
subtitle column by design - Calibre-sidecar books arrive pre-joined,
so a column would stay empty for most libraries and force every client
to reimplement concatenation.
- Genre: first dc:subject, mirroring the existing processGenresAndTags
behavior of the Calibre-sidecar path; the embedded path never
populated Genre before. Subjects stay one-element-one-tag - Library
of Congress headings legitimately contain commas ("Holmes, Sherlock
(Fictitious character) -- Fiction") and must not be split.
- Identifiers: urn:isbn:/urn:asin: prefixed values parse in addition to
opf:scheme attributes, and the scheme-less fallback now requires an
ISBN-shaped value (10/13 digits, optional separators/trailing X) so
URIs like the Gutenberg identifiers cannot masquerade as ISBNs -
observed live on 'A Study in Scarlet'.
- Series: EPUB3 belongs-to-collection with collection-type=series and
group-position refines, ahead of the classic calibre:series metas.
- Audiobookshelf metadata.json sidecars join their subtitle field into
the title the same way.
Tests cover title-type main+subtitle joining, belongs-to-collection
series with fractional group-position, urn:isbn extraction, genre/tag
parity, and comma preservation inside subject headings.
The cover lookup scraped the OPF with attribute-order-sensitive regexes.
Real books serialize attributes in any order - Grand Central's '3 Days to
Live' puts href before id on manifest items and content before name on
the cover meta - so all three regex paths missed and the book fell
through to filename guessing, extracting no cover at all. Attribute
order is meaningless in XML; the regexes were never safe.
Replace them with a structured parse (encoding/xml, namespace and
attribute-order agnostic; see the new media_scanner_opf.go) and follow
Calibre's read_raster_cover resolution order:
1. manifest item with properties=cover-image (non-(X)HTML media only)
2. <meta name=cover> resolved through the manifest, same media guard
3. first spine item that is itself a raster image (store manga)
4. NEW cover-page fallback: books declaring no raster cover at all -
the classic EPUB2/Adobe cover.xhtml wrapper - are mined for
<img src> / SVG <image xlink:href> references (Calibre renders the
page with Qt; extracting the referenced image covers the practical
cases without a rendering engine)
5. existing zip filename guessing stays as the last resort, and the old
regex chain survives as findCoverInOPFLegacy for OPFs too malformed
for a real XML parse.
Hrefs are now URL-decoded and posix-normalized against the OPF's own
path (path.Join semantics), so '../art/cover.jpg' from a nested cover
page and %20-encoded names resolve correctly.
Tests: attribute-order chaos modeled on the failing Patterson book,
SVG-wrapped cover pages via guide references, image-first spines, and
path resolution edge cases. Verified live against the real
'3 Days to Live' EPUB, which previously produced no cover.
Replace the silent hard-delete orphan cleanup (which logged only through
ScannerLogger file logs and whose failure paths left rows undetected)
with an archive lifecycle that preserves reading history:
- A file missing in one scan is marked (missing_scan_count = 1); missing
in a second consecutive scan archives it (archived_at, hidden from
browsing, progress/notes/highlights survive). Every branch logs to
stdout with an [ARCHIVE] prefix so skips are always visible.
- When a file reappears - same path, or identical content at a new path
via the SHA-256 dedup match - the archived state clears automatically
and the item returns with its history intact.
- Archived rows older than ARCHIVE_RETENTION_DAYS are hard-purged at
scan time (cascading deletes); 0 disables auto-purge for manual-only
management. Retention is read from the environment in NewMediaScanner.
Libraries managed by Audiobookshelf keep a metadata.json next to each
book (title, authors, series+sequence, genres/tags, publisher,
description, isbn/asin, language, published year/date) - and no
metadata.opf. The scanner silently ignored those files: deleting them
changed nothing, and their data never reached the database.
Parse them as a first-class sidecar in extractMetadata, priority
metadata.opf -> metadata.json -> embedded media. Only fields with a
matching media_items column are mapped; narrators, subtitle, explicit,
abridged, and chapters are deliberately skipped.
Cover handling is unchanged: the existing findSidecarCover priority
(cover.jpg / folder.jpg / {basename}.jpg) applies to the sidecar branch
exactly as it does for Calibre.
go-epub's ReadBook parses every spine chapter and fails the entire call
if any single chapter (or the TOC) is malformed, discarding already-parsed
OPF metadata. For books like Pragmatic's 'A Common-Sense Guide' the OPF
holds good title/author/publisher/ISBN metadata that rescans then wrote
as blanks - success toast, no (visible) change.
Refactor to parse the EPUB's own OPF document with the same Dublin Core
machinery used for Calibre sidecars: parseCalibreMetadataOPF is now a thin
file wrapper around a reusable parseOPFContent([]byte), and the OPF lookup
previously inline in extractEPUBCover is shared via findOPFPathInZip. Since
metadata never touches chapter bodies, chapter damage cannot blank it.
Also picked up along the way: dc:language mapping and scheme-less
dc:identifier values that normalize to a valid ISBN (EPUB3 style).
Tests cover a Pragmatic-style EPUB (dc namespace on <metadata>, no
identifier scheme, deliberately malformed chapter) that must still yield
full metadata, plus series/date/subject OPF parsing.
Previously both the metadata editor (PUT /api/media-items/:id) and the
scanner (library scans, force rescans, per-book rescans) wrote through
the same unconditional UPDATE media_items query, so any rescan wiped
user-written descriptions, tags, and uploaded covers. Custom and scanned
values were indistinguishable, and custom cover uploads even wrote to
the same {file}.cover.jpg sidecar path the scanner generates, so each
side silently clobbered the other.
Introduce metadata_overrides, a TEXT[] column on media_items listing the
column names the user has customized:
- Saving metadata records overrides per field by diffing the submitted
values against the stored row (an untouched save records nothing);
overrides accumulate until an explicit reset. Cover upload/removal
always marks cover_image_path. Bulk updates mark each applied field.
- The scanner merges: updateMediaItem() now takes the existing row and
restores every overridden column (including derived *_search arrays)
before writing, and preserves the override set itself.
- Uploaded covers move to a dedicated {file}.custom_cover.{jpg|png|webp}
sidecar so the scanner can never overwrite a user cover on disk.
- RescanMediaItem gains resetOverrides: POST /api/media-items/:id/rescan?
reset_overrides=true clears the set first, returning the item to pure
scanned defaults.
Shared detection/restore helpers live in internal/utils
(metadata_overrides.go) with unit tests covering detection, accumulation,
unset-form equality, and restore-with-derived-fields. Schema change is
an idempotent ADD COLUMN IF NOT EXISTS applied on startup. Also includes
incidental gofmt of NewMediaScanner literals in media_scanner.go.
pdftoppm defaults to rasterizing the MediaBox, while PDF viewers (pdf.js
in the reader, and every other viewer) display the CropBox. For PDFs
whose page 1 is the full print cover wrap (back cover + spine + front
cover in one landscape page) with a CropBox covering only the front
cover - e.g. No Starch's XeTeX-built 'Algorithmic Thinking' - the
fallback stored the entire spread as a squashed landscape cover, while
the reader correctly showed just the front cover.
Pass -cropbox so the rendered cover always matches what the reader
displays. Poppler falls back to the MediaBox when a PDF defines no
CropBox, so PDFs with identical boxes (the common case) render exactly
as before.
extractPDFCover previously only saved embedded raster images from page 1,
so vector/text-first-page PDFs (e.g. InDesign exports like Data Structures
the Fun Way) ended up with no cover and a dashboard placeholder. When no
embedded image is found it now falls back to rendering page 1 with
pdftoppm (poppler-utils), saving the same {pdf}.cover.jpg sidecar.
Also adds MediaScanner.RescanMediaItem, which re-extracts metadata for a
single media item (resolving its on-disk path from library folders) so
previously imported books can backfill covers without a full force rescan.
Dockerfile installs poppler-utils in the final and test-runner stages.
Force rescan was metadata-only: updateMediaItem never touched the
hash identifiers, so a force scan could not backfill file_sha256 for
items imported before hashing existed (or where extraction originally
failed). Those items were invisible to content dedup and SHA-256
device matching with no way to fix short of delete + re-import.
processMediaFile now refreshes hash identifiers in three cases:
- force rescan (the admin Scan button becomes the backfill tool)
- file size change (stored hash is stale - the bytes changed)
- unchanged file with no stored hash (ordinary scans self-heal the
legacy backlog incrementally, no admin action required)
Each recompute runs recordHashConflictIfAny: when the freshly stored
hash is now shared by more than one item in the library, the group is
upserted into hash_conflicts for the admin Hash Conflicts page. The
upsert is a no-op for already-tracked groups, so resolved 'keep both'
decisions stick.
Also extract a package-level computeFileSHA256 (the scanner method
now delegates to it) so the startup backfill service can hash files
without a scanner instance.
A read-then-write race in processMediaFile allowed the same file to be
imported twice: two concurrent scan jobs (startup scan, fsnotify dirty-
directory scan, periodic backup poll, or a manual scan each run on
separate worker goroutines with separate MediaScanner instances) could
both SELECT 'not found' and both INSERT. There was no transaction, no
row lock, no unique constraint on (library_id, file_path), and no
ON CONFLICT clause, so nothing stopped the double insert. Observed in
production as two identical 'Head First SQL' rows created in the same
second (same sha256, size, path, library).
Database enforcement:
- schema.sql: add UNIQUE(library_id, file_path) constraint, guarded so
re-runs don't error
- schema.sql: add self-healing migration that runs on every startup -
dedup_media_items_by_path() collapses existing path-duplicates and
reparent_media_item_children() moves all child rows (progress,
highlights, bookmarks, notes, collections, formats, aliases, kobo
entitlements, etc.) onto a survivor before deleting losers, so the
constraint applies cleanly on already-duplicated servers without
losing reading history. Survivor picks the row with the most user
data, ties broken by lowest id
- CreateMediaItem: upsert via ON CONFLICT (library_id, file_path) DO
UPDATE so concurrent inserts collapse to one row and return it
- CreateMediaItemFormat: upsert via ON CONFLICT (media_item_id,
format_type), closing the same race on format rows
Application-level guards:
- media_scanner processMediaFile: after computing the file hash, check
GetMediaItemBySHA256AndLibrary (new query) and treat the file as
existing when identical content is already in the library under a
different path (content dedup, library-scoped so multi-library
setups still work)
Ops tooling:
- scripts/dedup_media_items.sql: standalone idempotent maintenance
script with a dry-run report (path + content duplicate groups, child
row counts) and transactional cleanup, for servers that prefer to
dedup manually before upgrading
Verified against the live database: the duplicate pair was collapsed
(reading_progress preserved on the survivor), schema.sql re-runs are a
no-op, and the constraint is in place with 62 unique books remaining.
The bookhoard container crashed with 'panic: Failed to create file
watcher: too many open files' (media_scanner.go) after running for a few
hours, preceded by floods of 'no space left on device' from watcher.Add.
Root cause: every scan job called NewMediaScanner(), which eagerly
created an fsnotify watcher. SetFolders() then walked the entire library
tree and registered one inotify watch per directory (~3,000+ across the
libraries), and ScanFolders() registered them again during its walk. The
worker never called scanner.Close() on these ephemeral per-job scanners,
and the worker loop had no recover(), so:
1. Leaked watchers accumulated until the kernel inotify watch cap was
hit (ENOSPC -> 'no space left on device'), then
2. the process fd limit (ulimit -n 1024) was exhausted, causing
fsnotify.NewWatcher() to fail with EMFILE, and
3. NewMediaScanner panicked on that error, taking down the whole
process (exit code 2). With no restart policy the container stayed
down.
The scan jobs run frequently (scan_poll_interval), so the leak built up
within hours. Note this was NOT a disk-space issue; df showed plenty free.
Fix:
- media_scanner.go: NewMediaScanner no longer creates a watcher eagerly
(s.watcher starts nil), which removes the panic site entirely -- there
is nothing to fail at construction. The watcher is created lazily only
when needed.
- media_scanner.go: SetFolders gains a [?1049h[22;0;0t[1;24r(B[m[4l[?7h[?25l[H[2JEvery 2.0s: bool[1;37Hgaruda-ser8: Fri 31 Jul 2026 10:45:41 AM EDT[2;66Hin 0.002s (127)[2;80H
[3dsh: line 1: bool: command not found
[4d[24;1H[?12l[?25h[?1049l[23;0;0t
[?1l> parameter. It creates
and populates a watcher (returning an error instead of panicking) only
when watch=true; otherwise it skips all watcher.Add calls. ScanFolders
guards its watcher.Add with a nil check, and the WatchChanges event
loop exits cleanly when there is no watcher (polling still runs).
- worker.go: the worker() loop now wraps each job in defer/recover() so a
panicking job is recorded as failed and can never kill the process.
- worker.go: the three ephemeral scan handlers (processScanJob,
processSetFoldersJob, processDirectoryScanJob) now defer scanner.Close()
and call SetFolders(..., false), so scan jobs allocate zero watchers and
zero inotify watches. Any pre-existing leak is also bounded by Close().
- handlers/scanner.go: the long-lived watch-mode scanners (StartScanner
and StartWatchModeForLibrary) pass watch=true since they actually read
watcher.Events for live change detection.
- calibre_integration_test.go: updated to the new SetFolders signature
(watch=false, matching one-off scan usage).
Auto-add is fully preserved: new files are still detected by the periodic
poller (startBackupScan), which is independent of fsnotify and unaffected
by these changes. The watch-mode event loop remains as bonus responsiveness
when inotify is available; through Docker bind mounts where inotify is
unreliable, polling is what catches new books.
The root cause of scanner failures in Podman containers was NOT that
inotify doesn't work through bind mounts (it does — same kernel, same
inodes). The real bug was SetFolders() only watching root directories.
Linux has no recursive inotify — every subdirectory must be added
individually to the watcher.
Changes:
- SetFolders() now walks all subdirectories and adds each to the watcher
(same approach as Audiobookshelf/Kavita)
- Remove broken mtime-based detection: seedDirectoryMtimes,
pollDirectoryChanges, detectChangedRoots, checkDirectoryMtimes,
SyncFilesystemWithDatabase — all unreliable in container overlay mounts
- Replace StartPolling with startBackupScan: enqueues full JobTypeScan
every 5 minutes (down from 30) as a safety-net fallback
- enqueueLibraryScan() sets job.UserID from admin ID so the worker can
broadcast WebSocket messages
- performInitialScan() sets job.UserID for the same reason
- Add [WATCHER] prefix logging to all fsnotify event loop messages
- Add defense-in-depth: fallback to GetFirstAdmin() when library has
no created_by_admin_id (NULL from test cleanup)
- Fix processDirectoryScanJob to use prefix-match (GetLibraryByFolderPathPrefix)
- Fix nil context panic: all jobs now set Context: context.Background()
- Remove mtime-related tests; update default interval test from 30m to 5m
Podman rootless containers with overlay storage do not propagate inotify
events through bind mounts, making the fsnotify file watcher ineffective.
This caused new files added on the host to go undetected until the
5-minute full-filesystem-walk polling fallback caught them.
Add a lightweight directory mtime polling mechanism that runs every 10
seconds, checking stat() on all subdirectories under watched library
folders against a cached mtime value. When a directory's mtime changes
(indicating files were added/removed/renamed), it feeds into the existing
markDirectoryDirty() → processDirtyDirectories() → job queue pipeline.
Changes:
- Add dirMtimes cache + mutex to MediaScanner struct
- Add seedDirectoryMtimes() to populate cache on startup (prevents
false-positive flood on first poll)
- Add pollDirectoryChanges() goroutine (10s ticker) and
checkDirectoryMtimes() (walks directories, compares mtimes)
- Launch mtime poller from WatchChanges() alongside existing goroutines
- Rename StartPolling logs to [ORPHAN-CLEANUP] to clarify its role
- Change default poll interval from 60s → 30m (new file detection now
handled by the fast mtime poll; full sync focuses on orphan cleanup)
- Update GetScanSettings default from 60 → 1800 seconds
- Add 5 tests: seed cache, skip nonexistent, detect new dir, skip
unchanged, detect modified dir
Expected result: new files detected in ~20 seconds (10s poll + 10s
debounce) regardless of inotify/container support.
updateMediaItem (used by force rescan) was missing 22 fields including
Language, Genre, PageCount, CopyrightYear, GoodreadsID, and all 14 new
columns from the SQL query fix. Now wires all 37 UpdateMediaItemParams.
Also adds hasSiblingBookFile() early exit in processMediaFile: if a file
is an image (jpg/png/webp/etc) and its directory contains an actual book
file (epub/pdf/cbz/etc), skip importing the image as a standalone media
item. This prevents cover images and interior art from appearing as
duplicate library entries.
The media scanner never populated page_count or total_characters in
media_items, leaving progress display and reading position calculations
with no reliable data. This commit fixes data population for all formats:
Comics (CBZ/CBR/CB7/CBT):
- Add countArchiveImages() helper that walks archive entries and counts
image files (.jpg, .jpeg, .png, .gif, .webp)
- Call it during comic metadata merge to set metadata.PageCount
PDFs:
- Extract pdfInfo.PageCount from the pdfcpu library (already available
from PDFInfo call, just never used) and set metadata.PageCount
Reflowable EPUBs:
- Use book.AllChaptersText() to compute metadata.TotalCharacters
- Use book.ChapterCount() to set metadata.ChapterCount
Fixed-layout EPUBs (manga/comics in EPUB format):
- Merge .epub into the .cbz case in countArchiveImages since both are
ZIP archives with images
- Detect fixed-layout EPUBs via DetectFixedLayoutEPUB() in both the
Calibre sidecar path (mergeMetadata) and the no-sidecar path
(extractMetadata), counting images when fixed-layout is detected
Format group on creation:
- Remove the guard condition on UpdateMediaItemFormatGroup so that
format_group, is_reflowable, and has_fixed_layout are set immediately
for every new item (not just items with text data)
- Use DetectFixedLayoutEPUB() instead of hardcoding all .epub as
reflowable, correctly classifying fixed-layout EPUBs
Also pass PageCount to CreateMediaItem and add PageCount,
TotalCharacters, and ChapterCount fields to the MediaMetadata struct.
Go's new() builtin takes a type and allocates a zero value — it cannot
wrap an expression. All instances of new(someExpression) were compile
errors. Replace each with a local variable assignment and address-of
operator.
Affected files:
- handlers/koreader.go: progress field pointers (Chapter, Page, etc.)
- handlers/kobo.go: pagesRemaining pointer
- handlers/queue.go: uuidPtrToString and timestamptzPtrToString helpers
- router/reader.go: bookmark pageNumber and chapterNumber pointers
- services/media_scanner.go: validation error message pointers
- services/worker.go: StartedAt and CompletedAt timestamps
- sync/offline.go: GetDeviceStatus return pointer
- tests/device_test.go: SyncEnabled and SyncFrequencyMinutes pointers
Comic archive formats (.cbz, .cbr, .cb7, .cbt) and .kepub files were
falling through to the default case in extractMetadata(), which only
set the title from the filename. This meant ComicInfo.xml was never
parsed and no cover images were extracted for comics without a Calibre
metadata.opf sidecar file.
The fix adds dedicated switch cases:
- .cbz/.cbr/.cb7/.cbt: calls mergeMetadata() with nil, which triggers
existing ComicInfo.xml parsing (title, series, issue number, writer,
publisher, genre, reading direction, etc.) and cover image extraction
from the archive. Falls back to sidecar cover if no image is found.
- .kepub: treated the same as .epub since KEPUB is an EPUB variant,
enabling full metadata and cover extraction.
Remove redundant type conversions that Go 1.26 makes unnecessary or that
were already no-ops:
- uuid.UUID(x.Bytes) → x.Bytes (uuid.UUID is [16]byte, same as pgtype UUID Bytes)
- pgtype.UUID{Bytes: [16]byte(u), Valid: true} → pgtype.UUID{Bytes: u, Valid: true}
- (*time.Time)(&x.Time) → &x.Time
- json.RawMessage(x) → x where x is already []byte
- []byte(stringVal) → stringVal where []byte is expected
- int()/int64()/byte() casts on values already of the target type
- Decompressor(fn) → fn (type is identical)
Handle previously ignored error returns:
- collections.go: check json.Unmarshal error in GetCollection
- conversion_service.go: check fileSize.Scan() error
- app_test.go: check app.Shutdown() error in benchmark
Replace direct error equality checks (err == pgx.ErrNoRows, err != http.ErrServerClosed)
with the idiomatic errors.Is() function throughout handlers, services, middleware, and app
startup. This correctly handles wrapped error chains.
Also replace a raw type assertion (*HTTPError) with errors.AsType[*HTTPError]() in the
error handler middleware for consistency.
Additionally, rename shadowed variables for clarity:
- sidecar.go: config -> sidecarConfig, systemConfig (shadowed package-level vars)
- media_scanner.go: uuid -> uuidString (shadowed the uuid package import)
Two changes to EPUB metadata extraction:
1. Restructure extractMetadata so that fixed-layout detection and cover
extraction always run for EPUBs, even when extractEPUBMetadata returns
an error. Previously, a partial failure from the EPUB parser would skip
cover and format detection entirely, leaving books without covers.
2. Remove the language restriction (ja/jpn) from manga reading direction
detection. Manga tagged with 'manga' should default to RTL regardless
of the language metadata, since the tag is an explicit signal from the
user or metadata source.
Simplify pointer creation in media scanner validation messages and worker
job timestamps by using inline new() instead of local variable + address-of.
In media_scanner.go this cleans up three validation error message returns
(manga/comics library format checks). In worker.go it simplifies StartedAt
and CompletedAt timestamp assignments.
Add Go package documentation comments to clarify the purpose and scope of:
- internal/handlers/: HTTP request/response handlers for authentication,
libraries, media items, reading, collections, dashboards, devices,
analytics, and system features
- internal/services/: Core business logic layer including media scanning,
library management, search, analytics, and conversion services
These doc comments improve code discoverability and help developers understand
the architectural separation between HTTP handling (handlers) and business
logic (services).
Implement sidecar-first metadata extraction approach that prioritizes
Calibre metadata.opf files over embedded metadata when available.
Key Features:
- Sidecar-first approach: Check for metadata.opf before extracting embedded
- Full Dublin Core namespace support: Use complete namespace URLs
- Calibre-specific meta tags: Extract series, series_index from <meta> tags
- Graceful degradation: Fall back to embedded metadata on parse failure
- Identifier extraction: Support ISBN and ASIN from Dublin Core identifiers
- Date parsing: Handle ISO 8601 timestamps and simple date formats
Implementation Details:
- Added extractCalibreSidecar() to check for and parse metadata.opf
- Added parseCalibreMetadataOPF() with full Dublin Core namespace handling
- Modified extractMetadata() to try sidecar first, fallback to embedded
- Added CalibreOPFMetadata struct for intermediate parsing
- Cover image support: findSidecarCover() for sidecar metadata
Tests:
- Unit tests for parseCalibreMetadataOPF() with real Calibre file examples
- Integration tests for Calibre library scanning
This allows users with Calibre-managed libraries to import their curated
metadata (series, tags, custom covers) into Bookhoard.
Fixes: #calibre-opf-support
Removes problematic empty critical section (lines 1993-1994) that
was intentionally waiting for mutex availability. Replaces with
atomic.Bool scan tracking to avoid linter warnings while maintaining
the same scan serialization behavior.
Old pattern:
mu.Lock()
// intentionally empty wait for mutex
mu.Unlock()
New pattern:
scanRunning atomic.Bool
if !scanRunning.CompareAndSwap(false, true) {
return ErrScanInProgress
}
defer scanRunning.Store(false)
This provides equivalent functionality with better performance
characteristics and clearer intent.
- Remove debug printf statements from media scanner and worker
- Remove unused debug tracking variables (filesSeen, filesProcessed)
- Fix directory walk logic to properly scan the root directory itself
(previous implementation would skip the root path entirely)
Clean up production code by removing debug artifacts and improving
the directory scanning logic to handle root-level directories correctly.
Worker improvements:
- Add strongly-typed result structs for all job types
- Replace map[string]interface{} with specific result types
- Add JSON tags to JobResult for proper API serialization
- Fix processJob to handle different result types correctly
- Improve directory scan job with proper library folder resolution
- Add debug logging for scan operations
Media scanner improvements:
- Add nil checks for database in GetPollInterval and GetAutoScanEnabled
- Fix pdfcpu API call signature (add validateOnly parameter)
- Add debug logging for scanDirectory with file counters
- Improve error handling and reporting
Test fixes:
- Fix default poll interval expectation from 30s to 60s
- Add settingsCache initialization to scanner tests
- Add folders initialization to ProcessDirtyDirectories test
- Add SettingsCache with TTL-based invalidation (30 seconds)
- Cache scan_poll_interval_seconds and auto_scan_enabled settings
- Reduce database queries from every poll/check to once per TTL period
- Improve error handling with proper fallback values
- Simplify boolean parsing with strings.ToLower for consistency
This optimization reduces database load when checking scan settings,
which occurs frequently during media scanning operations.
- Replace event queue with dirty directories tracking (Jellyfin approach)
- Add file stability checking to wait for file writes to complete
- Add initial scan on startup to detect existing files
- Integrate with Worker job queue for directory scanning
- Change WatchChanges to return error and use atomic.Bool for state
- Add scan_mutex to prevent concurrent scans
- Add Close method with proper cleanup of resources
- Enhance polling with configurable interval
Add default library ID functionality to improve library targeting
during media scans.
Service changes in internal/services/media_scanner.go:
- Add defaultLibraryID field to MediaScanner struct
- Add SetLibraryID() method to set default library
- Modify processMediaFile() to use defaultLibraryID when set
- Prioritizes defaultLibraryID over folder-based library detection
- Provides explicit library targeting for scans
Service changes in internal/services/worker.go:
- Add libraryUUID conversion from string to pgtype.UUID
- Call scanner.SetLibraryID() before ScanFolders()
- Ensures scanner respects the job's library ID
These changes enable more precise library targeting during media scans,
allowing scans to be directed to specific libraries rather than relying
solely on folder-based detection.