8 Commits

Author	SHA1	Message	Date
cucadmuh	df3533bb5a	fix(cover): Windows thumbnails, tier fallback, PNG decode, coverArt id (#878) ... * fix(cover): tier fallback for sparse surfaces and Windows asset URLs Sparse UI (player bar, queue) now reads disk covers via the same tier ladder as dense grids, so a warm 800.webp satisfies a 128px request. Reject non-asset convertFileSrc results on Windows, widen Tauri asset scope, and seed ladder keys on cover:tier-ready. applyDiskPath uses seedGridDiskSrcCache only to avoid notify/subscriber infinite loops. * fix(artist): top-track thumb uses album coverArt already warm in grid Song coverArt ids often differ from album cover ids (e.g. Octastorium in the grid vs empty track thumb). Prefer the album row's coverArt on artist pages and ensure high priority for 32px dense cells. * fix(cover): albumId for playback/queue; no broken img until disk URL ready Prefer albumId over track-id coverArt (Navidrome). Wire queue to CoverArtImage with playback scope. CoverArtImage renders a placeholder div until asset src exists to avoid the browser broken-image icon. * fix(test): add song id to resolveArtistPageSongCoverArtId fixture Pick<SubsonicSong, …> requires id; fixes tsc in CI/build. * fix(cover): resolve albumId for Now Playing and artist top tracks Prefer albumId when album.coverArt echoes track id; use sparse surface on artist suggestion thumbs; apply resolveSubsonicSongCoverArtId across playback surfaces (Now Playing, fullscreen, mobile, mini). * fix(cover): decode PNG from Subsonic before WebP tier encode Enable `png` in the image crate — some servers return PNG cover art; failed decode left `.fetch-failed` and empty thumbs for those albums. * refactor(cover): consolidate cover id resolution and align tests Move resolveSubsonicSongCoverArtId helpers to src/cover/resolveCoverArtId.ts with resolvePlaybackTrackCoverArtId for player surfaces; co-locate tests; fix FullscreenPlayer expectations for albumId-first resolution. * docs: CHANGELOG and credits for PR #878 * fix(cover): keep per-track coverArt when distinct from song id Address PR #878 review (b): albumId only when coverArt is missing or echoes track id; pin case with unit test; comment isRawFsPath symmetry. * chore(cover): address PR #878 review nits (scope, tests, rename) Narrow asset scope to cover-cache dirs only; add diskSrcCache Windows-path tests; rename ArtistTopTrackCover; CHANGELOG symptom-first wording. * fix(cover): restore asset scope to app data dirs (Windows regression) $APPDATA/cover-cache/** did not match Tauri scope resolution — covers were blocked after load. Use $APPDATA/** and $APPLOCALDATA/** (no $DATA). * fix(cover): Windows asset URLs — restore DATA scope, path normalize Regression after review nits: dropped $DATA/** and strict isAssetProtocolUrl blocked valid http://asset.localhost URLs on Windows. Normalize C:/ paths before convertFileSrc; CoverArtImage/Hero hide broken img on load error. * fix(cover): disk peek fallbacks when cache folder id differs Small surfaces resolve albumId while cover-cache often stores WebP under track id or album.coverArt from the grid. Peek batch now tries legacy ids; playback scope resolves server index key by URL key, not UUID-only lookup. * fix(cover): Navidrome al-* vs mf-* disk id mismatch UI used mf-* coverArtId while library backfill only cached al-* folders. Prefer album id for display/peek when coverArt is mf-*; backfill now queues both distinct album_id and cover_art_id values. * fix(cover): mf→al disk peek when mf folder missing in cache Navidrome Subsonic often returns mf-* coverArtId while backfill only creates al-* folders. Peek mf first, then al-* from hints; load albumId from library when Subsonic omits it; ensure fallback uses al-* id. * feat(cover): CoverArtRef, segment disk layout, library-index backfill Normalize cover caching around stable entity ids from the local library and Navidrome fetch ids. Disk paths live in psysonic_core::cover_cache_layout (album/<entityId>/); UI uses CoverArtRef with cacheEntityId + fetchCoverArtId. - Remove SQLite/mf peek helpers (diskPeekIds, peekCoverOnDisk, mergeDiskIdHints) - Backfill reads album/artist rows from library SQLite (bare Navidrome ids ok) - Use stored cover_art_id for HTTP; per-disc dirs only when discs differ - Migrate call sites to albumCoverRef / albumCoverRefForPlayback * feat(cover): central CoverEntry resolver (artist, album, track) Add resolveEntry.ts and Rust CoverEntry helpers as the single source of truth for cache_entity_id vs fetch_cover_art_id. ref.ts delegates to them; resolveCoverArtId becomes a thin compatibility shim. * feat(cover): resolve cover entries from local library index Add library_resolve_cover_entry IPC and cover_resolve.rs so album, artist, and track covers use SQLite cover_art_id + disc detection. TypeScript helpers in resolveEntryLibrary.ts prefer the index over live API fields when rows exist. * feat(cover): library-first hooks for grids and playback UI Add useAlbumCoverRef, useArtistCoverRef, useTrackCoverRef, and usePlaybackTrackCoverRef — sync fallback then SQLite index upgrade. Wire album/artist cards, album header, song card, and all player surfaces to resolve covers from the local library when indexed. * feat(cover): complete library-first migration across all UI surfaces Add Album/Artist/TrackCoverArtImage, useLibraryCoverPrefetch, and batch resolve helpers. Migrate grids, search, home, playback sidecars, warm peek, playlists, and share flows to hooks that upgrade from SQLite. Backfill normalizes album rows through cover_resolve; document paths in COVER_PATHS.md. Radio remains a deliberate non-library exception. * fix(cover): stop render loop from unstable serverScope in library hooks Default param `{ kind: 'active' }` created a new object every render, so every grid cell re-ran library_resolve IPC and setState in a loop. Use COVER_SCOPE_ACTIVE singleton, coverScopeKey deps, and guarded sync updates. * chore(cover): remove COVER_PATHS.md from app tree (lives in workdocs) Audit doc is team spec — see workdocs 2026-05-cover-art-pipeline/cover-paths-audit.md. * fix(cover): unstick library backfill after route changes (PR #870 regression) useCoverNavigationPriority cleanup called beginNavigation instead of end, leaking navigationHoldDepth so ui_priority_hold never released and backfill never downloaded. Also skip disk check after cover_resolve normalization. * fix(cover): segment progress, cap backfill CPU, include artists in catalog Progress and disk size now scan album/ and artist/ segments (canonical 800.webp). Prune legacy flat server/al-* dirs on startup and backfill pass. Backfill: max 2 concurrent ensures; JPEG decode and WebP encode run on the blocking pool behind a shared 2-permit semaphore so Tokio workers stay cool. Artists were missing because the catalog only read the empty artist table; add distinct artist_id from track and album rows. Paginate with a composite (kind, id) cursor so album and artist rows are not skipped. * fix(cover): drop legacy prune; backfill per-disc and artist catalog Remove prune_legacy_* and cover_cache_catalog_entry — layout is only cover_dir (album|artist segments); stale flat dirs clear on LAYOUT_STAMP change. Backfill: artists from track/album artist_id; expand albums to per-CD mf-* slots when discs differ; fix resolve_album_cover_entry when album row is missing. * fix(cover): reduce library IPC storms and fix multi-disc player art Skip per-row library_resolve on live search and artist album grids; warm grids from API coverArt after mount instead of blocking layout. Dedupe and cap concurrent library_resolve calls. Restore per-disc cache keys in the player and queue when track mf-* art differs from the album bucket. * fix(cover): skip library resolve on advanced and full search rows Use API coverArt for album/artist rails and lazy viewport artwork so result pages do not fire hundreds of library_resolve IPC calls at once. * fix(cover): default libraryResolve off for browse grids and rails Skip per-card library_resolve on album/artist/song browse UI by default; keep it on album/artist headers, playback queue rows, and orbit approval. * fix(cover): split UI/backfill CPU pools and restore mainstage hero carousel Library backfill no longer shares the 2-permit JPEG/WebP semaphore with visible cover ensures. Hero initializes albums from props, re-binds scroll visibility after mount, updates backdrop on slide change, and uses library resolve for correct cover art on the banner. * fix(analysis): resume full-library scan after candidates phase Reset the SQL cursor when entering full-library mode so tracks with partial analysis are not skipped. Tighten TS backfill completion and CPU queue watermarking; align cover-cache key tests with album-scoped storage keys. * fix(library): remove useless map_err in cover_resolve (clippy) CI treats clippy::useless-conversion as error on rusqlite optional() chains. * fix(cover): satisfy clippy on cover_cache_ensure IPC args Pass CoverCacheEnsureArgs as a single Tauri parameter instead of nine positional fields; align frontend invoke payload with { args }.	2026-05-28 03:15:08 +03:00
cucadmuh	11974e1438	feat(analysis): ship index-key rebuild, strategy controls, and playback/queue pipeline updates (#864) ... * feat(analysis): align index settings and per-server strategies Rebuild the local index UX to live under Servers with per-server analytics strategies, and scope analysis queue hints/pruning by playback server so priorities stay isolated across profiles. * feat(analysis): add progress tracking and server analysis deletion functionality Introduce new interfaces for tracking library analysis progress and reporting on server analysis deletions. Implement functions to retrieve analysis progress for a server and to delete all analysis data for a specified server, enhancing the analytics strategy section with real-time progress updates and management capabilities. Update relevant components and localization files to support these features. * feat(server): implement server index key migration and enhance server ID resolution Add functionality to migrate server index keys from legacy IDs to new URL-based keys, improving server ID resolution across the application. Introduce new types and commands for handling server key migrations in both analysis and library contexts. Update relevant functions to utilize the new server ID resolution logic, ensuring consistency and accuracy in server-related operations. * refactor(library): simplify server ID handling in sync progress and idle subscriptions Refactor the library sync progress and idle subscription functions to directly use the payload's server ID without additional mapping. Update related components to resolve server IDs using a new utility function, ensuring consistent server ID resolution across the application. This change enhances code clarity and maintains functionality. * refactor(analytics): rename advanced strategy to aggressive and update descriptions Refactor the AnalyticsStrategySection component to rename the 'advanced' strategy to 'aggressive' for clarity. Update related localization strings to reflect this change, enhancing the user experience by providing clearer descriptions of the analytics strategies. Additionally, remove unused strategy description functions to streamline the code. * fix(audio): update server ID handling in audio progress functions Refactor the audio progress handling to utilize the new `getPlaybackIndexKey` function for server ID resolution. This change ensures that the correct analysis server ID is used when processing audio progress, enhancing the accuracy of playback operations. Additionally, a minor update was made to the analysis cache to include a checkpoint after seeding from bytes. Update the library path in live search to reflect the new database structure. * refactor(analysis): update server ID handling and drop legacy keys Refactor server ID handling across analysis components to utilize scheme-less keys (host + optional path) instead of legacy scheme-based keys. Introduce SQL migrations to drop legacy analysis rows and library entries keyed by scheme URLs. Update relevant functions and tests to ensure consistent server ID resolution and remove references to the legacy '' scope, enhancing clarity and maintainability. * refactor(migration): switch to strategy C dual-db flow Replace destructive server-key migration paths with a blocking inspect/run pipeline that imports into v2 sqlite files, verifies data, then switches active databases with backup safety. Add frontend migration orchestration and post-switch key rewrites while preserving existing user settings behavior. * fix(migration): harden runtime db switch and startup gate Switch database promotion through live runtime store/cache connection swaps so migration cannot leave writers on old sqlite inodes, and tighten startup gating to block initialization until migration completes. Also fix empty-bucket warning detection and set the done flag only after a post-run inspect confirms no pending legacy rows. * feat(migration): enhance migration reporting with skipped server rows tracking Add new fields to migration interfaces and reports to track skipped rows for removed servers. Update relevant components to display warnings and log messages when such rows are encountered during migration processes, improving visibility and user awareness of migration status. * fix(migration): avoid startup blocking modal on no-op runs Keep migration gate completed by default after successful runs and perform done-flag inspections without forcing a blocking phase, so normal app startup no longer flashes migration preparation when no migration is needed. * fix(migration): enforce startup precheck and purge unknown rows Prevent stale done-flag bypass by starting migration state in idle and gating completion on orchestrator precheck, and delete unknown removed-server rows from v2 databases before switch so skipped rows are not carried into the new active DB. * fix(migration): block UI during done-flag precheck Set inspecting phase before the first migration inspection and treat idle as blocking in the migration gate, so startup precheck cannot render the app before migration status is confirmed. * fix(migration): hide precheck modal when no migration is needed Keep startup precheck in a non-blocking idle phase and show the migration modal only after inspect confirms real migration work, removing the recurring half-second migration flash for already-migrated users. * fix(migration): cleanup legacy db files after path migration Always remove legacy analysis and library sqlite files (including wal/shm sidecars) when the new database paths are active, so old-path artifacts from previous builds do not linger after migration. * docs(changelog): add PR #864 release notes and contributor credit Document the full index-key rebuild scope for 1.47.0 and add the corresponding settings credit entry for PR #864. * test(analysis): raise hot-path coverage for analysis cache Add focused unit tests for analysis cache compute/store hot paths and edge branches so coverage regressions are caught before CI. Make AppHandle entrypoints runtime-generic and enable tauri test utilities in dev dependencies to cover no-cache and registered-cache execute paths. * fix(migration): make rebind pass resilient to foreign key ordering Run library and analysis server_id rebind operations inside a foreign-key-disabled transaction and validate with PRAGMA foreign_key_check after commit, so migrations from older databases do not fail on transient FK ordering during bulk updates. * feat(backup): add dual-database backup flow and blocking UX Extend backup/export and restore flows to handle library databases with unified archive detection and asynchronous backend execution. Improve backup UI with a global blocking modal and clearer localized copy so long operations do not look like app hangs. * docs(changelog): add PR #864 backup notes and contributor credit Update 1.47.0 release notes with backup/restore UX and archive-flow entries for PR #864, and add the matching settings credits contribution line for cucadmuh. * docs(changelog): sort 1.47.0 entries from old to new Reorder Added, Changed, and Fixed subsections in the 1.47.0 changelog so entries follow chronological PR order inside each block. * fix(playback): align offline/hot cache lookup with indexKey scope Use a canonical playback cache key based on indexKey with legacy UUID fallback so migrated offline and hot-cache entries are still resolved on normal play, resume, queue-undo, and prefetch paths. Refresh PR #864 changelog/credits text to reflect the full migration and backup scope.	2026-05-24 21:11:04 +03:00
cucadmuh	003b280a77	feat(enrichment): oximedia BPM/mood facts, mood search, and queue display (#863) ... * feat(enrichment): oximedia BPM/mood facts, mood search, and queue UI Run client-side oximedia analysis after CPU seed and persist BPM, mood JSON, and searchable mood_tag facts. Add product mood groups (joy/sadness/dance/work/ romance) with Advanced Search filter on the local index, queue BPM/mood display, migration 008 mood_tag index, and refreshed licenses for oximedia crates. * fix(enrichment): keep mood_groups module comment in English * feat(search): virtual mood groups, anger filter, and Advanced Search UX Expand mood search via overlapping virtual groups (tag expansion only), add anger/Злость group, skip album/artist shortcuts for track-only filters, and simplify mood search UI (songs-only, hide type tabs). Fix CustomSelect spurious scrollbar on short option lists. * feat(analysis): unified track analysis plan and enqueue path Add TrackAnalysisPlan (waveform, LUFS, enrichment) with a single enqueue_track_analysis entry for all byte-backed triggers. Run enrichment when cache is full but library facts are missing; route playback, cache, and backfill through the planner. Fix browseTextSearch LocalSearchOpts tsc gap and remove obsolete read_seed_bytes_if_needed helper. * fix(analysis): wire playback dispatch, preload enrichment, and UI refresh Route stream, gapless, preload, and local-file playback through analysis_dispatch so BPM/mood enrichment runs when waveform/LUFS are already cached. Fix audio_preload cache-hit and hot-cache paths, emit preload-cancelled for retry, and add analysis:enrichment-updated plus content_cache_coverage key resolution. * fix(audio): preload local files from disk and stop analysis retry loop Seed hot/offline next tracks via LocalFilePlayback (512 MiB) instead of copying into the RAM preload slot. Keep bytePreloadingId set after preload-ready so progress ticks do not re-invoke audio_preload every second. * fix(enrichment): clippy, album bpm filter routing, and queue mood display Clippy-clean analysis_dispatch and engine imports; restrict track-derived album routing to mood_group/mood_tag only so bpm is skipped on album queries. Log enrichment plan errors with retry-all plan; filter queue mood labels to oximedia ids. * fix(enrichment): simplify mood_tag backfill branch in plan_track_enrichment Remove empty if-block; keep same behaviour when backfill fails and moods row exists. * docs: CHANGELOG and credits for track enrichment PR #863 * docs(credits): track enrichment PR #863 contributor line * chore(enrichment): clippy-clean plan branch and trim dead exports Collapse mood_tag backfill if for clippy; remove unused moodGroupById and OXIMEDIA_MOOD_LABELS re-exports; stop poll when server BPM is already known. * fix(enrichment): close R2/S1–S3 limits and Song Info BPM fallback Return TrackEnrichmentOutcome::Failed on oximedia errors so retries are not masked as complete; extract mood Advanced Search SQL, unify top-3 mood tag selection in mood_groups with TS invariant tests, and show measured BPM in Song Info when tag BPM is missing or zero. * fix(enrichment): restore offline coverage and show mood in Song Info Add unit tests for offline download cancel/clear registry after the analysis seed refactor dropped read_seed_bytes coverage; show localized mood labels in Song Info when library enrichment facts exist. * fix(enrichment): soft mood scoring and unblock offline cancel tests Replace oximedia quadrant happy/excited mapping with valence/arousal soft scores across all mood tags for display, storage, and backfill; fix offline cancel unit tests that deadlocked by calling clear while holding the global offline_cancel_flags mutex. * fix(enrichment): dedupe joy cluster and cap mood display at two labels Never show happy and excited together; pick one tag per V/A cluster, tighten oximedia recalibration, and limit queue/Song Info to two moods that pass a relative score floor. * fix(enrichment): disable oximedia mood labels in UI and search tags Oximedia 0.1.7 mood is a spectral energy heuristic, not independent mood weights; valence correlates with loud/bright audio and false-labels metal and lyrical tracks as happy. Hide queue/Song Info mood and stop writing mood_tag facts until a reliable detector lands; keep V/A/moods JSON stored. * fix(enrichment): disable oximedia mood analysis and add BPM advanced search Stop planning, running, and storing oximedia mood facts; purge accumulated mood rows via migration 009. Hide mood filters in Advanced Search, expose BPM range filter with dual-storage resolution, and show a BPM column in song results when that filter is active. * feat(search): analysis BPM priority, source tooltip, and filter UX Prefer analysis track_fact over file tags for BPM resolution; show source in list tooltips. Validate BPM range on blur, add clear button, fix double tooltip. * fix(enrichment): prefer analysis BPM in Song Info and queue tech row Show measured track_fact BPM before file tags until analysis completes; pick the highest-confidence analysis fact when several exist.	2026-05-23 18:54:04 +03:00
cucadmuh	5bf2441ccf	feat(library): local library index and search (preview) (#846) ... * feat(library): scaffold psysonic-library crate with v1 schema and store (#791) Adds a new workspace crate that will host the unified track store and the upcoming sync engine. PR-1a covers spec phases A1–A6: - migrations/001_initial.sql: full v1 schema — sync_state, track, album, artist, track_fts (+ ai/ad/au triggers), track_extension, track_offline, track_id_history, track_fact, track_artifact, canonical_track, canonical_identity, track_canonical_link, canonical_enrichment_link, and all §5.2 partial indexes. - store::LibraryStore: WAL + foreign_keys=ON SQLite connection rooted at app_data_dir/library.sqlite (distinct from the analysis cache, which uses app_config_dir). schema_migrations table + idempotent embedded migration runner; LIBRARY_DB_SCHEMA_VERSION = 1. - repos::TrackRepository::upsert_batch: 35-column transactional upsert with ON CONFLICT(server_id, id) all-fields rewrite; FTS rows follow via the triggers. - search::search_tracks: minimal bm25-ordered FTS5 helper scoped to a single server_id, filtering deleted rows. - filter::FilterFieldRegistry: static v1 registry (text, genre, year, starred = V1; bpm = SchemaV1UiLater; user_rating/suffix/bit_rate = Planned). Entity routing is a silent skip per §5.13.3. No Tauri commands, no frontend, no sync — those land in PR-2..PR-7. PR-1b will follow with the migration-runner edge-case tests, the initial_sync_cursor_json read/write API, and the breaking-migration hook stub (P22). * feat(library): A7 migration-runner safety net + initial-sync cursor API (PR-1b) (#792) * feat(library): wire migration-runner safety net and initial-sync cursor API PR-1b — Phase A7 infrastructure on top of PR-1a. Production behaviour is unchanged at v1 launch; everything here is plumbing that PR-3 will consume. - store::run_migrations_with: testable entry point that takes an explicit migration slice, a min-compatible-version threshold, and a breaking-bump hook. The prod `run_migrations` fixes those to MIGRATIONS, LIBRARY_DB_MIN_COMPATIBLE_VERSION, and the no-op stub. The slice is now sorted defensively before applying. - store::LIBRARY_DB_MIN_COMPATIBLE_VERSION: new public constant (currently equal to LIBRARY_DB_SCHEMA_VERSION). When a future release needs to invalidate v1 data, bumping this above the max applied version trips the hook on next open per spec §5.7 / P22. - store::MigrationOutcome (Applied | BreakingBump): crate-internal signal callers can branch on. PR-1b consumers ignore it; PR-3 / Settings will surface the "library rebuilt after update" toast when it surfaces. - store::handle_breaking_schema_bump: documented no-op stub. The drop + resync logic lands with the first real breaking bump. - repos::SyncStateRepository: ensure(server_id, scope) idempotently inserts a default row; get_initial_sync_cursor / set_initial_sync_cursor read and write sync_state.initial_sync_cursor_json via serde_json::Value. The set uses ON CONFLICT … DO UPDATE scoped to the cursor column only, so phase / poll-stats / tier survive cursor writes intact. - Tests cover: additive 002-style migration preserves prior data (spec §5.7 explicit integration test), runner sorts an unsorted source slice, breaking-bump hook fires when max applied < min_compatible, hook does not fire on a fresh DB, cursor round-trips a nested serde_json::Value, ON CONFLICT preserves sibling columns, library_scope separates rows per server. End-to-end "kill mid-500k-sync → resume same cursor" stays out of scope per the kickoff answer — it belongs to PR-3 / C2 where the InitialSyncRunner lives. * test(library): cover AC A3 — 500-row upsert_batch under perf budget * feat(library): Subsonic REST client for the sync engine (Phase B, PR-2) (#793) Phase B (B1-B9 per spec §10) — pure-Rust Subsonic client that the library-sync engine (PR-3) will drive. No Tauri commands, no events; the surface is added internally to psysonic-integration as a sibling of the existing navidrome native-REST module. - B1 — SubsonicClient + ping over /rest/{method}.view. Auth via the legacy salted-md5 token (spec v1.13+, advertised as 1.16.1). New SubsonicCredentials helper computes token = md5(password || salt) and ships a per-process unique salt nonce so back-to-back calls don't repeat. - B2 — get_scan_status → ScanStatus { scanning, count, folder_count, last_scan }. Lightweight poll for the Huge-tier path (§6.2.2). - B3 — get_album_list2(type, size, offset, musicFolderId?) + get_album(id). The two-call pattern the sync engine walks during initial ingest (§6.3). - B4 — search3(query, songCount, songOffset, musicFolderId?). Empty query → all songs paged (Navidrome quirk, spec §2.4). - B5 — get_indexes(musicFolderId?, ifModifiedSince?). Conditional fetch for file-tree fallback (S3 / §3.1). - B6 — get_song(id). Error code 70 maps to the dedicated SubsonicError::NotFound variant so the tombstone reconciler can match on the variant instead of parsing strings. - B8 — get_artists(musicFolderId?). ID3-path artist index; clients compare ArtistIndex.last_modified_ms against the local watermark to decide if a delta pass is needed (§2.2.1). - B9 — fingerprint_sample helper picks every-Nth track id for the server-fingerprint verify pass. Sampling is deterministic so reruns probe the same tracks. The verify-and-compare glue itself is library-side (PR-3 territory, deps on the store). Tests cover envelope parsing (status=ok/failed, code 70 → NotFound, missing body key), credentials (md5 vectors, salt uniqueness across 1k rapid calls, salt differs per from_password call), each endpoint end-to-end through wiremock with query-param matchers, OpenSubsonic forward-compat (unknown fields ignored on Song), and the trailing-slash base-URL normalisation. Cargo.toml — adds query + form + multipart to psysonic-integration's reqwest feature set. PR-2's client needs `query`; the other two were already used by existing navidrome::covers / remote::lastfm code and only worked via top-crate feature unification. Aligning the crate's own deps means `cargo test -p psysonic-integration` now compiles without depending on the workspace build. Out of scope: capability detection (C1 / PR-3), Navidrome native bulk path (uses existing psysonic-integration::navidrome::queries), fixtures harness expansion (G1). * feat(library): subsonic client follow-ups from PR-2 review (PR-2b) (#794) Picks up the three non-blocking items from cucadmuh's PR-793 review (handoffs/2026-05-19-pr-793-review.md) before PR-3 starts on top. - Fresh `(token, salt)` per request. `SubsonicClient` now caches the plaintext username + password and derives a new `SubsonicCredentials` inside `send()` for every endpoint call — matches the frontend's `subsonicClient.ts` `getAuthParams()` lifecycle and follows Subsonic replay-resistance guidance. Test path keeps a `with_static_credentials` constructor so wiremock matchers stay deterministic. New `build_credentials` (`pub(crate)`) routes the two modes. - `SUBSONIC_CLIENT_ID` now carries the crate version (`psysonic/<CARGO_PKG_VERSION>`) — aligns with the frontend's `psysonic/${version}` so Navidrome log lines correlate across the WebView and Rust sync paths. - `Song.mbid_recording` gains the `musicBrainzId` serde alias (plus the schema-column spelling) so the OpenSubsonic field lands on the same hot column the §5.1 schema names. P13 strong-key matching can now key off it on ingest. - `get_song_with_raw` / `get_album_with_raw` return both the typed projection and the raw `serde_json::Value` body sub-tree. PR-3 ingest will write that raw value verbatim into `track.raw_json`, so OpenSubsonic extensions (`contributors`, `replayGain`, future fields) survive without manual field mirroring. Internal `parse_envelope_body` extracts the validation + body-key lookup once; `parse_envelope` and the new `parse_envelope_with_raw` share it. Tests cover: `from_password` produces unique salt/token across two back-to-back calls (direct + over-the-wire via wiremock `received_requests`), static mode returns the same triple, `c` query param starts with `psysonic/` and equals `SUBSONIC_CLIENT_ID`, `get_song_with_raw` preserves untyped fields (`replayGain`, `contributors`) in the raw value, `get_album_with_raw` keeps per-track extensions in `raw.song[i]`, error 70 still maps to `NotFound` on the raw variant, and `Song` deserializes `musicBrainzId` and `mbid_recording` interchangeably. B9 fingerprint-verify glue and the wider raw-ingest call sites stay with PR-3 / C2 as the review's §5 / §7 checklist directs. * feat(library): capability probe + sync_state accessors (Phase C1+C7, PR-3a) (#795) First sub-PR of Phase C (sync orchestrator). Lands the foundation that PR-3b's InitialSyncRunner consumes — pure plumbing, no runners or background tasks yet. - C1 capability probe. `psysonic_library::sync::CapabilityProbe::run` drives the §6.1 probe chain: Subsonic ping (captures `ServerInfo` envelope metadata for server-type / OpenSubsonic detection), then best-effort probes for search3 / getScanStatus / getIndexes, plus an optional Navidrome native bulk probe (caller passes `NavidromeProbeCredentials`). `CapabilityFlags(u32)` matches the §6.1.1 bitfield: NavidromeNativeBulk / SubsonicSearch3Bulk / ScanStatusAvailable / OpenSubsonic / UnstableTrackIds / FileTreeBrowse. - C7 sync_state accessors. `SyncStateRepository` gains get/set capability_flags, get/set sync_phase (idle / probing / initial_sync / ready / error), and column-scoped setters for server_last_scan_iso, indexes_last_modified_ms, artists_last_modified_ms, library_tier. Every setter uses `ON CONFLICT … DO UPDATE` scoped to its own column so concurrent watermark writes don't clobber each other. - Supporting additions in `psysonic-integration`: - `subsonic::SubsonicClient::server_info()` extracts `ServerInfo` from the ping envelope (server_type, server_version, api_version, open_subsonic). Re-uses `send()` so auth lifecycle is the same. - `navidrome::probe::native_bulk_available(url, token)` does the `GET /api/song?_start=0&_end=1` Bearer-auth probe. Returns Ok(true) on 2xx, Ok(false) on 4xx (auth ok but endpoint missing), Err on 5xx. Probe-only — full nd_list_songs port is PR-3b. - `psysonic-library/Cargo.toml` gains a `psysonic-integration` dependency (sync calls into Subsonic + Navidrome probes). DAG stays acyclic: integration does not depend on library. Per cucadmuh's PR-3 kickoff answer (handoff `2026-05-19-pr3-kickoff.md`): - Crate placement: option A — sync lives in `psysonic-library/src/sync/`, no new psysonic-sync crate. - N1 gate: probe is `/api/song?_start=0&_end=1` only; `nd_list_artists_by_role` is NOT required (Q3 answer + N1 ingest port lands in PR-3b). - UnstableTrackIds: set for Navidrome via `ServerInfo.server_type`, cleared for generic Subsonic. Tests added: 23 across library/sync, library/repos/sync_state, integration/subsonic, integration/navidrome/probe. Cover bitfield contains/insert/remove + spec bit values, probe across mixed-capability servers (full Navidrome, minimal Subsonic, broken endpoints), ping-failure short-circuit, optional Navidrome creds gating N1, sync_state column-scoped upserts (capability_flags / sync_phase / watermarks / library_tier), cross-column independence (capability writes don't reset cursor), ServerInfo extraction from ping envelope, Navidrome bulk probe across 2xx/4xx/5xx. * feat(library): InitialSyncRunner + C12 backoff + C13 id remap (Phase C2/C12/C13, PR-3b) (#796) Second sub-PR of Phase C — wires the actual ingest path on top of PR-3a's capability + sync_state foundation. Runner is pure async Rust: PR-3d will spawn it inside a tokio task and emit Tauri progress events on top. - C2 InitialSyncRunner. Drives spec §6.3 IS-1 → IS-6: probe-derived IngestStrategy (enum N1/S1/S2/S3, selector picks N1 → S1 → S2 chain per kickoff Q3), per-page upsert loop, cursor flush after every successful batch, IS-4 best-effort getArtists watermark, IS-5 getScanStatus.lastScan capture, IS-6 phase=ready + cursor cleared. Resume is automatic: a non-empty initial_sync_cursor_json restarts at the persisted offset; a strategy mismatch between cursor and capability flags surfaces as SyncError::CursorIncompatible. - C12 backoff. sync::backoff::Backoff implements the §6.8 schedule (2s → 4s → … cap 120s) with ±25% jitter via deterministic salt. retry_with_backoff wraps every endpoint call: transport / Navidrome failures retry up to MAX_ATTEMPTS_PER_BATCH (5), the cursor never advances on failure, success resets the counter. Cancellation AtomicBool is checked between attempts. - C13 id remap. TrackRepository::upsert_batch_with_remap performs the §6.9 detect-and-rebind pass inside the same SQLite transaction as the upsert: a content_hash or server_path collision on a different existing id triggers UPDATE of child tables (track_offline, track_extension, track_fact, track_artifact, track_canonical_link), INSERT INTO track_id_history, DELETE old track row. Off when UnstableTrackIds is clear (generic Subsonic). New TrackIdHistoryRepository read-side helper for forward lookups (analysis cache reuse, Phase E). - IngestStrategy enum + selector (sync::strategy) — N1 → S1 → S2; N1 requires Navidrome bearer credentials at runtime (skipped when None). S3 is enumerated for future file-tree fallback but returns StrategyUnsupported in v1 per kickoff Q3. - InitialSyncCursor (sync::cursor) — JSON-serialisable { strategy, phase, library_scope, ingested_count, strategy_state }. StrategyState tagged enum: LinearOffset { offset } for N1/S1, AlbumCrawl { album_offset, current_album_id } for S2. - mapping::subsonic_song_to_track_row + navidrome_song_to_track_row centralise the JSON → TrackRow projection. Subsonic path also reads replayGain.{trackGain,albumGain} from the raw value so PR-3b doesn't drop the columns that PR-2b reserves on TrackRow. - Supporting bits in psysonic-integration: - subsonic types now derive Serialize so the runner can round-trip a typed Song back into raw JSON when feeding upsert. - navidrome::queries gains nd_list_songs_internal — pure async function (no #[tauri::command] decorator) that the N1 ingest loop calls directly. The existing Tauri command wraps it. Tests added across sync::* and repos::track_id_history. Wiremock covers S1 happy-path, mid-cursor resume from a persisted offset, strategy mismatch → CursorIncompatible, 503 transient → retry-then- succeed, AtomicBool cancellation → Cancelled, N1 paginated /api/song ingest, S2 album crawl, and §6.9 remap firing under UnstableTrackIds during an actual sync. Backoff schedule + jitter formula pinned. TrackRepository remap path covered by content_hash collision, server_path collision, hash+path-missing skip, identity-noop, and remap-off compatibility with the existing upsert_batch contract. Also fixes cucadmuh's PR-3a review minor 1: drops the dead `mount_ok` scaffolding from sync::capability tests. Out of scope per kickoff Q2: - DeltaSyncRunner + tombstones → PR-3c - Background task lifecycle, cancellation wiring, progress emit throttle, adaptive scheduler, request budget, bandwidth lane → PR-3d - Tauri command surface for "sync now" / progress events → PR-5 * feat(library): search3 raw envelope fidelity for S1 ingest (PR-3b follow-up) (#797) Picks up cucadmuh's PR-3b review minor 1: the S1 path in InitialSyncRunner was reserialising the typed `Song` for `track.raw_json`, dropping unknown OpenSubsonic extensions (`replayGain`, `contributors`, …). N1 and S2 already carry the raw sub-tree verbatim through `nd_list_songs_internal` and `get_album_with_raw`; S1 now matches via the new `SubsonicClient::search3_with_raw` mirror of the PR-2b pattern. - subsonic::SubsonicClient::search3_with_raw — returns `(SearchResult, serde_json::Value)`; uses the existing `parse_envelope_with_raw` so error 70 / `Api { code, .. }` mapping stays consistent. - sync::initial::run_s1 now calls `search3_with_raw` and feeds the per-song raw sub-tree (`raw_body.song[i]`) into `subsonic_song_to_track_row` instead of a typed reserialise. Tests cover `search3_with_raw` round-trip on a payload with `replayGain` + `contributors` (verifies the raw value preserves both) and the empty-result case where the body is `searchResult3: {}`. Plus an end-to-end S1 ingest test that asserts the persisted `track.raw_json` column contains the OpenSubsonic extensions after a full runner pass, and that `replay_gain_track_db` / `_album_db` still land on the typed columns via the mapping helper. Full review: psysonic-workdocs/internal/collaboration/handoffs/2026-05-19-pr-796-review.md * feat(library): DeltaSyncRunner + TombstoneReconciler (Phase C3/C4, PR-3c) (#798) Third sub-PR of Phase C — drives targeted delta passes on top of PR-3a/b's foundation. Pure async; PR-3d will spawn it inside the background scheduler. - C3 DeltaSyncRunner. Walks spec §6.4 DS-0 … DS-9: - DS-0/1/2/3 cheap probe via `getArtists` (small/medium tier) or `getScanStatus` (huge tier when `ScanStatusAvailable`). Server watermark match → up_to_date short-circuit, scan-in-progress → deferred_scanning report; zero further requests in either case. - DS-4 targeted ingest. Strategy from capability_flags: N1-delta when NavidromeNativeBulk is set, otherwise S2-delta. S1 has no delta semantic so it's not used here. - N1-delta: GET /api/song _sort=updated_at _order=DESC, pages until rows fall under the local `MAX(server_updated_at)` watermark; out-of-band rows in the same page are dropped. - S2-delta: getAlbumList2 type=newest then type=recent, up to a small page cap; getAlbum is fetched only for album_ids the local store doesn't already have. Known albums are skipped so a play-bump under "recent" doesn't re-ingest the whole tracklist. - DS-6 id remap reuses TrackRepository::upsert_batch_with_remap. - DS-9 stamps next watermark (artists_last_modified_ms or server_last_scan_iso) + last_delta_sync_at. - DS-5 canonical matcher (Phase H) and DS-7 starred delta are out of scope for PR-3c. - C4 TombstoneReconciler. Caller-driven streaming: each `reconcile_chunk(budget)` picks the next `budget` ids ordered by synced_at ASC, calls getSong, marks deleted=1 on code 70, and refreshes synced_at on every checked id so the queue rotates. Mode A (manual integrity) loops until checked == 0; Mode B (auto-threshold) tests `should_auto_reconcile(local, server, pct)` per delta tick and runs a small budgeted chunk. Memory bounded — no full local-id list ever held in RAM. - SyncStateRepository: new getters for artists_last_modified_ms, server_last_scan_iso, library_tier; new set_last_delta_sync_at stamp helper. All column-scoped upserts preserve neighbouring fields. Tests cover DS-2 short-circuit (watermark match), DS-3 defer (scanning=true), N1-delta watermark cutoff (3 fresh + 2 stale rows → only 3 upserted), S2-delta known-album skip (mock 404 on al_known guards the assertion), DS-9 watermark + last_delta stamping, should_auto_reconcile threshold cases (gap, tolerance, server=0, local<=server), reconcile_chunk code-70 → deleted=1, budget + ordering (oldest first, newest untouched), empty-store noop, and cancellation. PR-3d (background task, probe→flags wiring, progress emit, adaptive scheduler, request budget, bandwidth throttle) lands next on the same integration branch. * feat(library): sync supervisor + progress channel + DS-8 wiring (Phase C5/C6, PR-3d1) (#799) First half of PR-3d (cucadmuh-approved split per kickoff Q2). Pure-Rust lifecycle + progress infrastructure on top of the runners from PR-3a/b/c. Tauri events stay in the top crate (PR-5); this PR only ships the channel the top crate will subscribe to. - C5 SyncSupervisor. Spawns a sync workload inside a tokio task, owns the cancellation AtomicBool, and exposes a single-consumer mpsc receiver for ProgressEvent. join() returns the inner Result<(), SyncError>; panics surface as Storage so callers never need to know about tokio internals. - C6 progress channel. New sync::progress module: - ProgressEvent enum — lean variants (PhaseChanged / IngestPage / Remapped / Tombstoned / Completed / Error). Server / scope context lives on the channel side (one supervisor = one scope). - Progress trait + NoopProgress default + ChannelProgress forwarding through tokio mpsc. Throttle is the simple last-emit-timestamp gate; terminal events (Completed / Error) bypass it. - InitialSyncRunner + DeltaSyncRunner gain with_progress(...) builders. IS-1 / IS-6 emit PhaseChanged + Completed; delta emits PhaseChanged at strategy pick, Tombstoned at DS-8, and Completed at DS-9. Defaults to NoopProgress so existing call sites keep working. - DS-8 wired. DeltaSyncRunner::with_tombstone_budget(n) drives TombstoneReconciler::reconcile_chunk(n) after DS-4 ingest; shares the runner's cancellation flag + sleep override. The DeltaSyncReport gains tombstones_checked / tombstones_deleted so callers can act on the counts. - capability::probe_and_persist helper. Chains CapabilityProbe::run with sync_state writes: sets phase to "probing" before the probe, persists capability_flags, then drops back to "idle". PR-3d2 (the scheduler) will call this in front of every initial / delta run so the stored flags reflect the live server. Tests cover: ChannelProgress throttle (zero-interval pass-through, terminal bypass, non-terminal collapse, sender alive after receiver drop), SyncSupervisor task completion + cancel + panic-as-Storage + receiver-take-once, probe_and_persist round-trip through SyncStateRepository (flags persisted, phase ends at "idle"), DS-8 reconcile-after-ingest landing tombstones on code 70 returns. PR-3d2 follows with the adaptive scheduler (C8), request budget (C9), poll EWMA (C10), and the bandwidth / queue priority lane (C11). * feat(library): adaptive scheduler + request budget + EWMA poll + bandwidth (Phase C8/C9/C10/C11, PR-3d2) (#800) Second half of PR-3d per cucadmuh's kickoff-Q2 split. Wraps the runners + supervisor from PR-3a/b/c/d1 into a tick-driven background scheduler. Top crate (PR-5) plumbs the timer. - C8 BackgroundScheduler. Tick-based — caller drives the interval, scheduler decides whether the tick should run. is_due(now_ms) checks sync_state.next_poll_at; tick(now_ms) either skips (not due / PrefetchActive pause), or runs a DeltaSyncRunner with the right budget + tombstone trigger, then stamps the next poll_at via the adaptive formula. No tokio task ownership — tests stay deterministic, PR-5 plugs spawn behaviour to taste. - C9 RequestBudget. PassKind enum (PollTick / DeltaLight / DeltaMismatch / InitialSync) with caps per spec §6.2.5 (1 / 50 / 200 / unlimited). RequestBudget::has_room(used) gates the runner; PR-3d2 ships the data type, runner enforcement of the cap is a future tightening (DeltaSyncRunner already has its own page cap so the soft cap mostly informs Settings). - C10 PollStats EWMA. New sync::poll_stats with PollStats (artist_count, ewma_bytes, ewma_duration_ms, library_tier), observe()/set_artist_count()/reclassify() helpers, the §6.2.2 tier table (<2k / 2k-15k / >15k or ewma_bytes >2MB), and next_interval_ms following the spec formula (base * load_factor * artist_factor, load_factor clamped [1, 10]). - C11 PlaybackHint + ParallelismBudget. PlaybackHint enum (Idle / Playing / PrefetchActive) resolved to a ParallelismBudget { max_concurrent, min_request_gap_ms }. PrefetchActive pauses bulk (`max_concurrent = 0`) per §6.2.4; the scheduler honours it via tick short-circuit. - Auto-tombstone wire. Before running the DeltaSyncRunner the scheduler tests `should_auto_reconcile(local, server, pct)` against the persisted counts; on threshold trip it sets `with_tombstone_budget(200)` (the §6.2.5 DeltaMismatch cap). - SyncStateRepository gains poll_stats_json get/set, next_poll_at get/set, local_track_count get/set, and server_track_count get/set — all column-scoped upserts. Tests: ~30 new across poll_stats / budget / bandwidth / scheduler. EWMA seed + smoothing, tier-classification edges (artist + size overrides), next-interval formula bounds (idle base, slow-network load_factor clamp), RequestBudget caps per pass, ParallelismBudget resolution, scheduler is_due (no schedule / future schedule), tick short-circuit (not due, PrefetchActive pause), tick runs delta and persists next_poll_at, auto-tombstone trigger above 5 % threshold, PollStats round-trip through SQLite. Together with PR-3d1 this finishes Phase C — Tauri command surface (D1-D4) lands with PR-5. * feat(library): read-only Tauri command surface (Phase D1 part 1, PR-5a) (#801) First sub-PR of Phase D per cucadmuh's kickoff Q1 split. Lands the LibraryRuntime Tauri State plus the 8 read-only library commands from spec §7.1. No SyncSupervisor spawn, no sync lifecycle commands, no credentials store — those land in PR-5b. - New psysonic_library::runtime::LibraryRuntime — Tauri State wrapping Arc<LibraryStore>. Top crate's lib.rs setup() now calls LibraryStore::init(app), wraps the result in the runtime, and app.manage's it. Mirrors the AnalysisCache wiring above it. - New psysonic_library::dto module — camelCase wire DTOs per src-tauri/CLAUDE.md: SyncStateDto, LibraryTrackDto (flat projection over the track hot columns + raw_json sub-tree), LibraryTracksEnvelope, TrackArtifactDto, TrackFactDto, OfflinePathDto, TrackRefDto. local_tracks_max_updated_ms helper surfaces the implicit N1-delta watermark on the SyncStateDto. - New psysonic_library::payload module — pure ProgressEvent → LibrarySyncProgressPayload mapper (the payload Tauri events carry once PR-5b plugs the supervisor's mpsc receiver into AppHandle::emit). Constants for the event names too. Unit-testable without Tauri runtime. - New psysonic_library::commands module with 8 #[tauri::command] handlers: - library_get_status — joins the sync_state row + the track-watermark MAX query into one SyncStateDto. - library_search — FTS5 via the existing search_tracks helper, paginated; hydrates hits to full LibraryTrackDto. - library_get_track — single SELECT through new TrackRepository::find_one. - library_get_tracks_batch — capped at 100 refs/call per spec, preserves caller-supplied order, drops unknowns silently. - library_get_tracks_by_album — ordered by disc/track/id via new TrackRepository::find_by_album. - library_get_artifact — flexible WHERE over track_artifact (artifact_kind required, source/format optional), latest fetched_at wins. - library_get_facts — fact_kinds filter optional; returns all rows for the (server_id, track_id) pair when none specified, sorted by fact_kind + fetched_at DESC. - library_get_offline_path — returns local_path with a `missing: true` flag when the row is absent. - TrackRepository gains find_one / find_batch / find_by_album with a shared row-to-TrackRow mapper. SQL constants pinned next to the existing UPSERT_SQL so a schema change touches one file. - src-tauri/src/lib.rs: LibraryStore::init in setup(), the eight command handlers added to invoke_handler!. Tests cover: DTO field-name camelCase (IPC contract guard), LibraryTrackDto round-trip through TrackRow, raw_json fallback to Value::Null on bad input, local_tracks_max_updated_ms ignores deleted rows, TrackRepository::find_one / find_batch / find_by_album ordering + unknown-ref drop, ProgressEvent mapper across all six variants + serialization keys camelCase. Library tests at 166; workspace stays green. Out of scope per kickoff Q1: - Mutating commands (library_sync_*, library_patch_*, library_put_*, library_purge_*, library_delete_*) → PR-5b - SyncSupervisor spawn + background scheduler tick loop + progress emit → PR-5b - library_sync_bind_session / clear_session credentials → PR-5b - TS wrappers + Settings UI + server-remove modal → PR-5c - library_advanced_search / library_search_cross_server SQL builders → PR-5d * feat(library): sync lifecycle + mutate + purge Tauri surface (Phase D1 part 2, PR-5b) (#802) Second sub-PR of Phase D per cucadmuh's kickoff Q1 split. Adds the mutating side of §7.1 plus the SyncSession credentials store, the PlaybackHint setter, the orchestrator that runs InitialSyncRunner / DeltaSyncRunner under a Tauri AppHandle and emits library:sync-progress and library:sync-idle events, and the top-crate scheduler tick task that sweeps every bound session through BackgroundScheduler::tick. - LibraryRuntime extended per kickoff Q2: sync_sessions HashMap, playback_hint cell, current_job (cancel handle + identity), and scheduler_cancel flag the tick task watches. Kickoff sketch said Mutex<Option<SyncSupervisor>> — supervisor's join() consumes self, so holding it in the mutex would block library_sync_cancel behind the orchestrator's join; CurrentJob carries the Arc<AtomicBool> cancel + metadata instead, orchestrator task owns supervisor / receiver / join. - New commands (spec §7.1): - library_sync_bind_session — caches Subsonic creds in memory, tries navidrome_token once for bearer cache, runs probe_and_persist so capability_flags reflect the live server. - library_sync_clear_session — drops cached credentials. - library_set_playback_hint — JS pushes idle / playing / prefetch_active from existing audio listeners. - library_sync_start — dispatches InitialSyncRunner (mode='full') or DeltaSyncRunner (mode='delta', with auto-tombstone budget when local/server count gap exceeds threshold). Spawns runner + orchestrator task that drains the progress mpsc into library:sync-progress emits and emits library:sync-idle when the runner exits. - library_sync_cancel — trips the current job's cancel flag. - library_patch_track — sparse JSON patch (starredAt, userRating, playCount, playedAt) per §6.5. - library_put_artifact / library_put_fact — upserts with ON CONFLICT scoped to the PK so lyrics / BPM writes survive re-fetches. - library_purge_server — transactional DELETE across the v1 schema tables for this server_id. include_offline (default false) controls track_offline + bytes_freed. - library_delete_server_data — alias that always purges offline too (logout flow). - src-tauri/src/lib.rs setup() spawns a 30 s MissedTickBehavior::Skip task that snapshots bound sessions and drives BackgroundScheduler::tick(now_ms) for each. Honours runtime.scheduler_cancel + the current PlaybackHint. Background ticks stay silent (NoopProgress) — Tauri emit for the scheduler path lands when Settings (PR-5c) surfaces it. - psysonic-integration::navidrome re-exports navidrome_token so the bind_session command can drive the bearer cache without making the client module pub. Tests cover: LibraryRuntime session round-trip (set/get/clear scopes per server), playback_hint default + setter, snapshot returns clones so callers can mutate freely. Existing library tests stay green (171 → 171; new code paths under the Tauri command surface — devtools integration smoke is PR-5c's job). Out of scope per kickoff Q1: - src/library/ TS wrappers + Settings UI subsection + server-remove modal → PR-5c - library_advanced_search / library_search_cross_server SQL builders → PR-5d - Background-tick Tauri emit (NoopProgress today) → PR-5c - analysis_cache cross-purge in library_purge_server → PR-6 * feat(library): typed invoke wrappers + verify_integrity command (Phase D2 + part of D1, PR-5c) (#803) Frontend-facing slice of Phase D. Ships the typed src/api/library.ts wrapper layer that any Settings / browse code will import from, plus the manual-integrity backend command PR-5b's review §5 note 2 called out as missing. Scope cut from cucadmuh's PR-5 kickoff Q1 split: that proposal had PR-5c = D2 + D3 + D4 (wrappers + Settings subsection + server-remove modal). The Settings UI + server-remove + audio playback-hint wiring + authStore extensions + i18n strings turn into a thick frontend patch in their own right; landing them in one PR with the wrappers would mix Tauri-surface review with Settings UX review. The split: - PR-5c (this PR) — D2 wrappers + library_sync_verify_integrity. - PR-5c-ui (follow-up) — D3 Library Settings subsection, D4 server-remove modal contract, playback hint feed, authStore / i18n. Per kickoff exit clause ("Do not split 5c unless review size forces it"). Reviewable as a clean Tauri-surface vs UX boundary. - Backend: `library_sync_verify_integrity { serverId, libraryScope? }` command — same dispatch shape as `library_sync_start { mode:'delta' }` but always forces the full `DELTA_MISMATCH_CAP` tombstone budget regardless of the local/server count gap. Spec §6.7 Mode A user- initiated full reconcile bypasses the threshold check that governs background ticks. `library_sync_start` itself is refactored to delegate to a private `library_sync_start_inner(force_full_tombstone)` so both entry points share the runner-spawn + orchestrator + emit code. - Frontend `src/api/library.ts`: full typed wrapper layer over the 19 `library_*` Tauri commands. DTO mirrors carry the camelCase wire shape (`SyncStateDto`, `LibraryTrackDto`, `TrackArtifactDto`, `TrackFactDto`, `OfflinePathDto`, `PurgeReportDto`, `SyncJobDto`, `TrackRefDto`, `ArtifactInputDto`, `FactInputDto`). Plus the `LibrarySyncProgressPayload` / `LibrarySyncIdlePayload` interfaces and `subscribeLibrarySyncProgress` / `subscribeLibrarySyncIdle` helpers that wrap `@tauri-apps/api/event` listen. PlaybackHint literal type lives here too (`'idle' | 'playing' | 'prefetch_active'`) so the audio listeners in PR-5c-ui can import a single source of truth. - `src-tauri/src/lib.rs` adds the new verify_integrity handler to the `invoke_handler!` aggregate. Tests: library tests stay at 171 — verify_integrity is exercised through the existing `sync_start_inner` paths; the wrapper layer is trivial passthrough that TypeScript types already check. Vitest coverage for the typed wrappers belongs with PR-5c-ui where there are real consumers (LibraryTab) to drive integration tests. PR-5c-ui (next) lands: - Library Settings subsection (§7.3 minus advanced toggles) - ServerRemoveModal extension (keep vs delete local index per §5.6) - authStore: libraryIndexEnabledByServer + auto-reconcile toggle - src/store/audioListenerSetup audio:playing / ended / setDeferHotCachePrefetch → library_set_playback_hint - i18n keys for the new strings * feat(library): Settings library index UI + playback hint + purge-on-remove (Phase D3/D4, PR-5c-ui) (#804) * feat(library): Settings library index UI + playback hint + purge-on-remove (Phase D3/D4, PR-5c-ui) Frontend half of Phase D, on top of PR-5c's typed wrappers. Wires the Settings → Library subsection (§7.3), the audio playback-hint feed (§6.2.4), and the server-remove keep-vs-delete choice (§5.6). - New libraryIndexStore (Zustand, persisted) — per-server enable flag + auto-reconcile toggle. Kept out of authStore so the index feature evolves independently and the persisted blob stays small. - New LibraryIndexSection in Settings → Library: - Per-server "Enable local library index" toggle → binds / clears the Rust sync session with the active server's credentials. Off by default (P6). - Read-only status (Idle / Checking / Initial sync / Ready (n) / Error) polled from library_get_status every 3 s, overlaid with live library:sync-progress events. - Sync now / Verify integrity / Cancel buttons. Verify runs one §6.7 pass (budget 200) per click; the status line shows the checked/removed counts so large libraries can be continued with another click (auto-resume loop is a follow-up). - Auto-reconcile toggle. - Subscribes to library:sync-progress + library:sync-idle for the active server; errors surface as a toast. - Audio playback hint: handleAudioPlaying → 'playing', handleAudioEnded → 'idle' via notifyLibraryPlaybackHint, which gates on the per-server index toggle + dedupes repeated hints so the IPC boundary isn't spammed on every progress tick. - ServersTab delete flow: when a server with an enabled index is removed, a second confirm offers keep-vs-delete of the local library cache (OK = library_delete_server_data, Cancel = retain for offline). Always clears the sync session. - i18n: en + de keys for the new strings; other locales fall back to en via i18next (later sweep). Per PR-803 review §5: verify-integrity resume UX is one-pass-per-click with a visible counter; sync_start idempotency (replaces in-flight) is surfaced via the Cancel button appearing while busy. Out of scope: - VirtualSongList / playerStore local-mode consumers → PR-7 (F1/F3/F5) - library_advanced_search / cross-server UI → PR-5d + PR-7 F2 - Auto-resume loop for very large verify-integrity runs → follow-up - Search-all-servers + threshold input (advanced §7.3) → later * fix(library): normalize server base URL before bind probe The bind toggle threw "subsonic transport: builder error | relative URL without a base" — `server.url` is stored bare (e.g. `nas.example.com`) and reqwest needs a scheme. Two-sided fix: - Frontend: LibraryIndexSection passes `authStore.getBaseUrl()` (adds http:// + strips trailing slash) instead of the raw `server.url`, matching the existing `subsonic.ts` convention. - Backend: `library_sync_bind_session` normalizes the incoming `base_url` defensively so the stored session + every downstream caller (sync_start, scheduler tick, navidrome_token) gets a scheme-qualified URL regardless of what the WebView sends. Tests: normalize_base_url covers bare host, trailing slash, existing http/https scheme, and whitespace. * fix(library): re-bind sync session on startup + server switch "Library sync failed: no bound session" — the per-server index toggle persists in localStorage but the Rust sync session (credentials + bearer) lives in process memory and is gone after an app restart, so the toggle showed "on" while no session existed. Per PR-5 kickoff Q5 ("on server connect if index already on"). - New `ensureActiveServerSessionBound()` helper: re-binds the active server's session when its index toggle is enabled. Best-effort — silent on failure (Settings surfaces the real error on explicit toggle). - MainApp re-binds on every `activeServerId` change (covers app startup + server switch — `setActiveServer` drives the effect). - LibraryIndexSection re-binds on mount before the first status poll, so Sync now / Verify integrity work immediately even when the toggle was already on from a previous run. * fix(library): trigger initial full sync on first enable (PR-804 review §5.1) cucadmuh's PR-804 review flagged this as release-blocking: the toggle only bound the session and «Sync now» / the background tick ran delta-only, so a fresh enable left the index empty — delta can't populate a never-synced library. - On first enable, after bind, fetch status and dispatch `library_sync_start { mode: 'full' }` when `lastFullSyncAt` is null (matches spec §6.2 "initial sync always background"). - «Sync now» now picks mode adaptively: `full` until a full sync has completed, `delta` afterward — so the button works both for the initial population and incremental updates. Other PR-804 review notes (auto-reconcile toggle → backend wiring, prefetch_active hint, clear-old-session-on-switch) stay as documented non-blocking follow-ups. * feat(library): advanced search + cross-server SQL builders (Phase D-search, PR-5d) (#806) * feat(library): advanced search + cross-server SQL builders + commands (Phase D-search, PR-5d) - FilterFieldRegistry SQL resolution: SqlFragment, compare_fragment, validate_for_entity (§5.13.5) - Advanced Search builder: per-entity track/album/artist queries; genre (case-insensitive), year, starred, bpm filters; bpm dual-storage resolution (§5.13.4); libraryScope; sort allowlist; full-match totals - Cross-server FTS union (§5.5B / §5.9 A') with canonical-id dedup - library_advanced_search + library_search_cross_server commands, registered in the shell * feat(library): typed advanced search / cross-server invoke wrappers (PR-5d) Mirror request/response DTOs and add libraryAdvancedSearch / librarySearchCrossServer in src/api/library.ts. UI parity (AdvancedSearch.tsx) stays PR-7. * fix(library): self-heal stale/unreadable initial-sync cursor instead of bricking (#807) The initial-sync cursor records the ingest strategy it was created under. When a re-probe later selects a different strategy (e.g. the Navidrome native bearer is briefly unavailable, downgrading N1->S2), the cursor guard returned a hard error — and since nothing clears the cursor, every later full sync failed with no recovery path. Reset the stale (or unreadable) cursor and start fresh under the selected strategy instead of erroring. Re-ingest is idempotent (upsert); the tombstone pass reconciles leftovers. * fix(library): emit per-batch progress during initial sync (#808) The initial-sync runner only emitted PhaseChanged (start) and Completed (end), so the Settings status sat at "initial_sync" with no count for the entire ingest — looking stuck on large libraries even while rows landed. Emit IngestPage per batch from the N1/S1/S2 loops with the running ingested total; the existing <=2 Hz throttle paces it. The frontend already renders the count from these events. * feat(library): Advanced Search reads the local index when ready (Phase F2, PR-7a) (#811) When the active server's index is fully synced, Advanced Search serves query / genre / year / result-type from library_advanced_search (instant + offline) and pages songs locally. On not-ready or any failure it falls back to the existing network path unchanged (spec 5.13.6). Results map from each entity's stored Subsonic rawJson, with the flat hot columns as a fallback. * feat(library): canonical matcher — link tracks by ISRC/MBID on ingest (Phase H1/H2, PR-4a) (#812) Adds the strong-key cross-server matcher (spec §5.5A): on every track upsert, link (server_id, track_id) to a canonical id derived from its ISRC (preferred) or MBID recording. Deterministic id (`{kind}:{value}`) keeps it O(1) and idempotent — no lookup-then-create race, no fuzzy loop on the bulk path. Tracks without a strong key stay standalone (fuzzy/search-time matching is H3). * feat(library): cross-server fuzzy fallback in search (Phase H3, PR-4b) (#813) library_search_cross_server now returns a `fuzzy` list alongside the exact FTS `hits` (spec §5.9): per-server `title LIKE %query%` for matches the exact pass missed (diacritics, partial words), capped per server, excluding exact hits and deduped by canonical id against them. Shared `like_contains` moved to the `search` module. * feat(library): FactRepository with TTL + provenance rules (Phase E4, PR-6a) (#814) Typed CRUD over track_fact behind library_get_facts / library_put_fact (spec §5.12): get lazily deletes the track's expired facts then returns the survivors (no background GC, P34); a `user` bpm fact also writes the hot track.bpm column so the override wins and survives a resync (R6-3.4). The commands now delegate here instead of inlining the SQL. * feat(library): ArtifactRepository with TTL + 512KB cap (Phase E4, PR-6b) (#815) * fix(integration): decode OpenSubsonic isrc string-array on Song (#818) OpenSubsonic types `isrc` as `string[]`; Navidrome 0.61.2 ships it as `isrc: []` or `["USRC…"]`. The typed `Song.isrc: Option<String>` could not decode either form, which broke the S1 (`search3`) and S2 (`getAlbum`) ingest paths on real Navidrome libraries — initial sync could not complete past the first array-valued track. Add a tolerant `de_string_or_seq` deserializer: plain string → `Some`, non-empty array → first usable value (string element, or an object element's `name` for the `[{ "name": … }]` shape), `[]`/null → `None`. The full multi-value set still survives verbatim in `track.raw_json` (ADR-7). Applied to `Song.isrc`. Per maintainer policy R7-15 (workdocs question 2026-05-20-large-library-ingest-client-only, checklist item 1): treat Navidrome as a black box, harden the client decode. Tests cover `isrc: []` → None, populated array, and the legacy single-string form. * feat(library): large-library ingest strategy — S1 over N1 (R7-15) (#819) Per maintainer policy R7-15 (large-library ingest, client-only): very large Navidrome catalogs must not start initial sync on N1 — its native `/api/song` returns HTTP 500 beyond a deep offset and can never finish. S1 (`search3`) does not hit that wall. - Add `IngestStrategy::select_initial_strategy(flags, server_track_count, n1_bulk_unreliable)`. Large libraries (count > LARGE_LIBRARY_THRESHOLD, default 40_000) or servers flagged `n1_bulk_unreliable` route to S1 — or S2 when search3 bulk is absent. Normal-size libraries keep the cheapest N1 → S1 → S2 chain unchanged. - Persist the learned per-server `n1_bulk_unreliable` flag on `sync_state` (additive migration 002, DEFAULT 0). The mid-run N1→S1 fallback that sets it lands in a follow-up. - Capture `getScanStatus.count` in the capability probe and persist it as the `server_track_count` watermark, so the threshold applies from the first sync rather than only after N1 hits the wall once. A count-less probe never clobbers a watermark from a prior run. - The initial-sync runner now selects via the new policy. Tests: selector table (all branches incl. threshold boundary and the search3-absent fallback), repo flag roundtrip, probe count capture + watermark-preservation, migration head-version bookkeeping. * feat(library): freeze ingest strategy on resume (R7-15 Q3) (#820) A persisted initial-sync cursor that has already made progress must resume under its own strategy and ignore what a fresh capability probe would now pick. Previously any strategy mismatch reset the cursor to a fresh one — so a flapping Navidrome bearer (N1 flag toggling between probes) restarted ingest from offset 0 on every launch, which is why large initial syncs never completed across restarts. `load_or_init_cursor` now: - resumes the cursor's strategy when it has progress (`ingested_count > 0` or `phase != Ingest`), regardless of the re-selected strategy; - adopts the freshly-selected strategy only when there is no resumable progress (offset 0), where re-selecting costs nothing; - still resets a corrupt/unreadable cursor rather than hard-erroring. One guarded exception: a cursor still on N1 after the server was learned `n1_bulk_unreliable` is known-broken and re-selects onto the non-N1 path instead of resuming a wall-bound N1 loop (the mid-run N1→S1 fallback that preserves progress lands next). Tests: resume-with-progress freezes strategy and keeps the count; no-progress cursor adopts the re-selected strategy; known-broken N1 cursor re-selects; unreadable cursor still resets. * feat(library): one-way N1→S1 fallback on deep-offset 500 (R7-15 Q5) (#821) When the N1 ingest loop hits a persistent HTTP 500 at or beyond the deep-offset safety line (`N1_DEEP_OFFSET_SAFE`, 50_000) it now treats it as Navidrome's server-side deep-offset wall rather than a transient error: it learns `n1_bulk_unreliable` for the server and finishes the sync on S1. - `run_n1` catches the wall after retry exhaustion (`n1_hit_deep_offset_wall`: HTTP 500 AND offset >= the safety line) and hands off to `fall_back_n1_to_s1`. A 500 below the line stays a propagated error — no silent downgrade. - The fallback flags the server, then restarts S1 from offset 0. N1 (`id ASC`) and S1 (`search3` default order) don't share an offset space, so resuming from the N1 offset would skip songs; re-ingest is idempotent (PK upsert), duplicate work over the rows N1 already wrote is acceptable for v1. The cursor is rewritten in place, never zeroed. - One-way only: S1 never flips back to N1 mid-run. Combined with the persisted flag and the resume freeze, a future sync selects S1 directly. - `N1_DEEP_OFFSET_SAFE` is overridable on the runner so the fallback is testable without 50k rows of fixture data. Tests: deep-offset 500 falls back to S1, ingests the full set without duplicating N1's rows, and persists the flag; a shallow 500 propagates and does not flag the server. * feat(library): cache + retry Navidrome bearer, keep N1 flag on transient loss (R7-15 Q3) (#822) A flaky `/auth/login` previously stripped N1 for a whole bind: the bearer was fetched once, best-effort, and a single miss dropped to Subsonic-only. Per R7-15 Q3 a transient `navidrome_token` failure must not drop the `NavidromeNativeBulk` capability. - `bind_session` fetches the bearer with `navidrome_token_with_retry` (3 attempts, short backoff); if it still fails, it keeps the bearer cached from a prior bind instead of overwriting it with `None`. The token / credentials are never logged. - `probe_and_persist` preserves a previously-learned `NavidromeNativeBulk` flag when it probes without a token — the server still supports `/api/song`; only the bearer is missing this bind. The capability is a stable server property, so a token-less probe must not clear it. - `library_sync_start_inner` masks `NavidromeNativeBulk` from *this run's* strategy selection when the session has no token, so the run proceeds Subsonic-only (S1/S2) instead of selecting N1 with no creds. The persisted capability stays intact for a later bind that recovers the token. The in-flight cursor is already protected by the resume freeze. Tests: token retry yields the token on success and `None` after exhausting attempts; the probe keeps a learned N1 flag across a token-less re-probe. * feat(library): mid-run S1→S2 fallback on persistent S1 failure (R7-15 Q8) (#823) The N1→S1 fallback (#821) had no analogue when S1 itself fails on a server. Per R7-15 Q8, a persistent S1 failure (C12 retries already exhausted) must fall back to the universal S2 album crawl — no new artist-walk strategy. - `run_s1` catches a persistent fetch failure from the `search3` retry loop (`is_fetch_failure`: transport / HTTP / decode / Subsonic API / not-found) and hands off to `fall_back_s1_to_s2`. Cancellation and storage errors propagate untouched. - The fallback restarts S2 from scratch. S1 (`search3` order) and S2 (album-list order) don't share an offset space, so resuming from the S1 offset would skip songs; re-ingest is idempotent (PK upsert). The cursor is rewritten in place, never zeroed — the resume freeze then keeps the run on S2 across restarts. This completes the ingest fallback chain N1→S1→S2 from the §6.3 strategy order; the start-time "no search3 → S2" selection was already covered (#819). Tests: a persistent S1 500 falls back to S2 and the album crawl ingests the track. * fix(library): resume interrupted initial sync on startup (#824) * fix(library): resume interrupted initial sync on startup An initial sync killed mid-run (app restart) sat at `idle` until the user clicked «Sync now» — the background scheduler is delta-only and the auto-full-sync only fired on the index toggle, not on the startup re-bind. `resumeInitialSyncIfIncomplete` runs after the active server's session is re-bound (startup + server switch): if no full sync has completed yet (`!lastFullSyncAt`) it dispatches `library_sync_start { mode: 'full' }`, which resumes from the persisted cursor instead of restarting from zero. Once a full sync has landed it is a no-op, so delta stays the scheduler's job. Best-effort — errors stay silent (Settings surfaces them on explicit action). Tests: starts a full sync when none has completed, no-ops once a full sync has landed, stays silent when the status lookup fails. * fix(library): silence cancelled-sync toast, de-dupe startup resume Two rough edges from the startup resume: - A cancelled sync surfaced as «Library sync failed: sync cancelled». The orchestrator emitted the runner's `Cancelled` result as an error on the sync-idle event. Cancellation is expected — the user cancelled, or a newer `library_sync_start` superseded the job (server switch / startup resume) — and is documented as silent. `sync_outcome_to_result` now maps `SyncError::Cancelled` to a clean idle, only real errors toast. - `resumeInitialSyncIfIncomplete` is now de-duped per server. React StrictMode fires the startup effect twice, so a second `library_sync_start` cancelled the first (`set_current_job` is cancel-and-replace) — harmless with the fix above, but the dedupe avoids the wasted job + probe entirely. Tests: `sync_outcome_to_result` keeps `Cancelled` silent and forwards real errors; concurrent resume calls start a single full sync. * fix(library): run DB read commands off the main thread (async) (#825) The 10 library read commands were synchronous (`pub fn`). Per the Tauri v2 docs, commands without `async` run on the main thread — so a read that blocks freezes the UI. During an initial sync the runner holds the single `Mutex<Connection>` for a whole batch write (500 rows × per-row remap on Navidrome + upsert + FTS, one transaction), and the Settings library section polls `library_get_status` on an interval. Each batch write blocked that polled read on the main thread → the window greyed out until the batch finished, with the freeze growing as the DB grew. Make the DB-touching read commands `async` so they run off the main thread: `library_get_status`, `library_search`, `library_get_track`, `library_get_tracks_batch`, `library_get_tracks_by_album`, `library_get_artifact`, `library_get_facts`, `library_get_offline_path`, `library_advanced_search`, `library_search_cross_server`. Reads still serialize behind the writer (the single connection is intentional — the schema mirrors `analysis_cache`, spec §5.1), but the wait no longer blocks the UI. State-only commands stay sync. Invoke names / payloads are unchanged, so the frontend is unaffected. Spec §15 R7-15 follow-up — surfaced in live QA on a 170k library. * feat(library): scope analysis cache by server_id (E1, schema only) (#826) Add a versioned migration to audio-analysis.sqlite so waveform/loudness rows are keyed per server. This is the schema-only step (PR-6c-1): every existing row migrates to server_id='' and behaviour is unchanged. The server_id write/read wiring, legacy fallback and lazy re-tag follow in 6c-2. - migrations 001 (baseline = the pre-versioning schema) + 002 (rebuild the three tables with server_id; PK (server_id, track_id, md5_16kb), loudness + target_lufs) - versioned runner mirroring the library store; each migration commits its schema change and version marker in one transaction, so a failure or crash rolls the whole migration back and retries cleanly - VACUUM INTO snapshot before the table rewrite as a safety net beyond the transaction (disk-full at COMMIT, FS corruption) - TrackKey gains server_id; all callers pass "" for now * feat(library): analysis cache server_id wiring (E1, 6c-2) (#827) * feat(library): scope analysis cache writes/reads/deletes by server_id (E1 wiring) Build on the 6c-1 schema migration: thread the playback server scope (playbackServerId ?? activeServerId) through the analysis cache so a server switch can no longer surface another server's waveform/loudness for the same bare track_id. - Write: seed_from_bytes_* and the CPU-seed / HTTP-backfill queues carry a server_id; every audio write path (in-memory, ranged, legacy stream, local file, spill, preload), the syncfs offline/hot caches, and the backfill command write under the playback server (empty = legacy ''). - Read: get_latest_*_for_track and the exact-key lookup try the server scope first, then fall back to the legacy '' rows; a legacy hit is re-tagged onto the server scope (INSERT OR IGNORE, never clobbers a precise row). No bulk backfill — existing caches re-tag lazily on play, so they are not re-analysed wholesale. - The backend gain-resolution path (loudness normalization, replay-gain updates, device resume) is scoped via a pinned current_playback_server_id on the audio engine, so normalization keeps working for server-scoped rows. - Delete: delete_*_for_track_id scope to (server + legacy ''); reseed on one server no longer wipes another server's analysis. delete_all_waveforms stays global (Settings -> Storage). Tauri boundary: analysis_get_waveform(_for_track), analysis_get_loudness_for_track, analysis_delete_waveform/loudness_for_track and analysis_enqueue_seed_from_url gain an optional serverId; audio_play and audio_preload gain an optional serverId. All additive (absent = legacy ''). * feat(library): pass playback serverId to analysis IPC (E1 wiring) Send getPlaybackServerId() (queueServerId ?? activeServerId) with every analysis-cache call so reads/writes/deletes scope to the right server: - audio_play / audio_preload (playTrack, resume, queue-undo restore, gapless byte-preload) - analysis_get_waveform_for_track / analysis_get_loudness_for_track (waveform + loudness refresh) - analysis_delete_waveform/loudness_for_track + analysis_enqueue_seed_from_url (reseed + loudness backfill) Absent serverId stays backward-compatible (legacy '' scope). * feat(library): content_hash from playback (E2, 6d) (#828) * feat(library): record playback content_hash into the track store (E2) Bridge the playback-derived md5_16kb into library `track.content_hash` (R7-16 Q4) so id-remap can rebind a track when the server reassigns ids (§6.9). - New `ContentHashSink` port in psysonic-core (closure handle, mirrors PlaybackQueryHandle): keeps psysonic-analysis decoupled from psysonic-library. - `seed_from_bytes_into_cache` returns the computed md5; `seed_from_bytes_execute` fires the sink after a successful seed (Upserted or cache-hit) when a real server is known. The shell crate registers the sink to patch the library. - `patch_content_hash` + `library_patch_track`'s new optional `contentHash` field write it; both no-op when the library has no row for (server_id, id), i.e. the index is off for that server. - Sync upsert no longer clobbers it: `content_hash = COALESCE(NULLIF( excluded.content_hash,''), track.content_hash)` — a sync (which passes NULL) preserves the playback hash, a non-empty incoming hash still wins. No schema migration — the `content_hash` column already exists. Tauri boundary: `library_patch_track` gains optional `contentHash` (additive). * feat(library): expose contentHash on libraryPatchTrack wrapper (E2) Add optional `contentHash` to the `libraryPatchTrack` patch type so the TS contract matches the extended Rust command. Normally written by the Rust analysis bridge; exposed for completeness. * feat(library): enrichment summary on library_get_track (E3, 6e) (#829) * feat(library): enrichment summary on library_get_track (E3) Add an optional `enrichment { waveformReady, loudnessReady, lyricsCached }` to the single-track `library_get_track` read (R7-16 Q5). Read-only, per-server, never blocks on the network; list/batch projections leave it unset. - New `AnalysisReadinessQuery` port in psysonic-core (closure handle, mirrors ContentHashSink) keeps psysonic-library decoupled from psysonic-analysis. The shell crate registers it to probe the analysis cache by exact (server_id, track_id, content_hash) key with legacy '' fallback — read-only, no re-tag. waveform/loudness readiness is gated on a known content_hash (E2). - `lyricsCached` from a new pure-read `ArtifactRepository::lyrics_cached` (valid, non-expired, non-not_found lyrics row). - `library_purge_server`'s `includeAnalysis` documented as a deliberate v1 no-op (R7-16 Q7): analysis is never deleted on purge / server remove. Tauri boundary: `LibraryTrackDto` gains optional `enrichment` (additive). * feat(library): mirror enrichment on LibraryTrackDto wrapper (E3) Add `TrackEnrichmentDto` + optional `enrichment` to the TS `LibraryTrackDto` so the contract matches the extended `library_get_track` response. * feat(library): VirtualSongList browses the local index when ready (F1) (#830) The all-songs browse now serves pages from the local library index when it is ready for the active server, falling back to the unchanged network path otherwise. - `runLocalSongBrowse` (reuses the F2 local-read adapters): empty-query browse-all via `library_advanced_search`, whose default track order (`t.title COLLATE NOCASE ASC`) matches the network `ndListSongs('title','ASC')` path, so paging stays coherent across a local↔network boundary. - Gated per page on `libraryIsReady` + `source === 'local'`; any miss / failure returns null → VirtualSongList uses the existing browse path unchanged. - Search (non-empty query) stays on the network path for now; rich search is already covered by Advanced Search (F2). * feat(library): patch-on-use for star/rating/scrobble (PR-7 F3) (#831) * feat(library): library_patch_track clears nullable fields on explicit null (F3) Extract the patch logic into a testable `apply_track_patch`. Nullable integer fields (`starredAt` / `userRating` / `playCount` / `playedAt`) now distinguish an absent key (leave untouched) from an explicit `null` (clear the column), so `unstar` ({ starredAt: null }) actually un-stars the local row. `.map` keeps the present/absent distinction; `as_i64()` yields the value or `None` → bound as SQL NULL. F3 is the first caller that sends null, so no existing behaviour changes. * feat(library): patch-on-use wiring for star / rating / scrobble (F3) After a successful star/unstar, setRating, or play scrobble, mirror the change into the local library index via `library_patch_track` so its reads (browse F1, advanced search F2) reflect the action immediately — no stale list after a rate, no full resync. - `patchLibraryTrackOnUse` helper: fire-and-forget, gated on the index being enabled for the server; the Rust command additionally no-ops when no row matches (album/artist id, or index off). - Wired at the central API chokepoints: `star`/`unstar` (song only) → `starredAt`, `setRating` → `userRating`, `scrobbleSong` → `playedAt`. - `play_count` is left to the next sync (the patch sets absolute values; a correct increment needs the current base). F4 (deprecating the player-store override maps) is intentionally separate — removing them would break instant star feedback when the index is off. * feat(library): full-queue restore from the index on startup (PR-7 F5) (#832) Persist the whole queue as a lightweight ref list and rehydrate it from the local index on startup, so the entire queue survives a restart instead of only the windowed slice (R7-17 / §8.6). - Persist adds `queueRefs` (full ordered ids) + `queueRefsIndex` alongside the existing windowed `queue`. Ids are tiny; the windowed objects stay as the no-index fallback. - `hydrateQueueFromIndex` (startup, after session bind): when the library index is ready for the queue's server, hydrate the full queue via `library_get_tracks_batch` (batched ≤100), map `songToTrack ∘ trackToSong`, re-locate the current track so `queueIndex` stays aligned, then clear the refs. - Index not ready / missing rows / current track not found → keep the windowed fallback (queue never empty when the index is off, the P6 default). Old persisted shape without refs loads unchanged. - `trackToSong` exported from the F2 local-read adapters (one mapper). Kept the windowed-objects persist (did not drop the cap per R7-17 note): the index-off default needs the embedded fallback or the queue would restore empty. * feat(library): pending-sync for song star/rating (PR-7 F4) (#833) * feat(library): central pending-sync helper for song star/rating (PR-7 F4) `queueSongStar` / `queueSongRating` (spec §6.5 / R7-18): set the player-store override optimistically, retry the Subsonic API with exponential backoff (flush on `online` / window focus), and on success clear the override + patch the in-memory Track so the UI stays correct without it. The F3 index patch-on-use runs inside the API layer, unchanged. - No rollback on the first network error (the override survives until the retry succeeds or the app restarts; overrides are session-only, not persisted). - Latest-toggle-wins coalescing + an identity guard so a fast re-toggle while a request is in flight can't retire the newer task. - v1: songs only. * feat(library): route song star/rating through the pending-sync helper (PR-7 F4) Replace the scattered optimistic-set + API-call + rollback logic with the single `queueSongStar` / `queueSongRating` helper across cucadmuh's named v1 surfaces: PlayerBar, FullscreenPlayer, MobilePlayerView, both context menus (song + queue row), both shortcut paths, the song-rating hook + player-bar stars, skip→1★, and AlbumDetail (song star + rating). The 30+ override read sites are unchanged — they already read `override ?? track`, and the override now clears on success. Standalone page toggles (Favorites, RandomMix, NowPlaying star) and the separate mini-player webview keep their existing path — no regression (a non-migrated override simply lingers as before) — and move to a follow-up. * feat(library): route remaining song star/rating sites through pending-sync (F4 follow-up) (#834) Migrate the three standalone song write sites left out of #833 onto the central queueSongStar / queueSongRating helper: - Favorites: handleRate + removeSong (un-star) - RandomMix: toggleSongStar (drops local try/catch rollback per no-rollback policy) - useNowPlayingStarLove: toggleStar (keeps local view state, helper owns override + retried sync) MiniContextMenu stays on its direct path (separate webview, no shared store). No behaviour change for album/artist rating paths. * feat(library): route playlist song star/rating through pending-sync (F4 follow-up) (#835) The playlist-detail star/rating hook was the last shared-store song write site still calling the Subsonic API directly. Route handleRate + handleToggleStar through queueSongRating / queueSongStar, matching the Favorites and RandomMix follow-ups; keep the local ratings/starredSongs view state, drop the inline override. MiniContextMenu remains on its direct path (separate webview). * feat(library): BPM range filter UI in Advanced Search (PR-7 F6) (#836) * feat(library-sync): parallel initial ingest (S2 + N1/S1 prefetch) Wire C11 ParallelismBudget (max 4 when idle) into InitialSyncRunner: parallel getAlbum for S2, up to 4 in-flight pages for N1/S1, and persist S2 cursor once per album-list page instead of per album. * fix(library-sync): defer scheduler during initial sync and improve ingest diagnostics Background delta/tombstone ticks every 30s were competing with IS-3 bulk ingest for the write mutex (20–60s lock waits on large libraries). Skip scheduler while sync_phase is initial_sync/probing or bulk ingest is active. Serialize ingest batch metrics as camelCase for DevTools, add bulk-ingest FTS/index suspension, combined cursor persist, write-op tracing, live local search, and library dev logging helpers. * fix(library-search): scoped FTS, cancel stale live search, skip 1-char queries Use column-scoped FTS for artists/albums/songs, min two graphemes for local FTS, capped match counts in Advanced Search, and title browse index (m004). Live Search aborts superseded network requests, passes requestEpoch to drop stale Rust FTS, and avoids search3 fallback for too-short queries. * fix(library-search): prefix FTS, fast subquery joins, hide BPM in Advanced Search Live and Advanced Search now use FTS5 prefix tokens ("metal"*) and limit bm25 ranking inside rowid subqueries so large libraries stay in the ms range. Advanced Search BPM filter is removed from the UI until enrichment ships. * feat(library-search): race local index vs search3, show first result Live Search and Advanced Search text queries run library and network backends in parallel; the faster source wins. Adds searchRace helper and search_race dev logging. * feat(library-index): multi-server UI, serial sync queue, scoped local search Add master library index toggle with per-server rows, offline retry, and a frontend sync queue so initial ingest runs one server at a time. Scope Live Search and Advanced Search to the sidebar music library filter via library_id and raw_json fallbacks; coerce numeric libraryId on ingest. Promote idle sync state to ready when a full sync stamp exists and block cross-server initial sync starts in Rust. * chore(library-store): compliance — clippy, i18n, CHANGELOG Fix clippy/tsc blockers (request structs, IngestPageCtx, type aliases), add library index strings to all 9 locales, and document the preview feature in CHANGELOG [1.47.0] with Psychotoxical + cucadmuh attribution. * docs(credits): library index preview contributions Credit Psychotoxical for the local library store foundation and cucadmuh for multi-server UI, scoped search, and i18n. Drop removed scan-trigger wording from PR #780 entry. * docs(release): link library index preview to PR #846 * docs(changelog): sort [1.47.0] entries by ascending PR number * docs(changelog): mark library index as Added in [1.47.0] * docs(changelog): restructure [1.47.0] into Added/Changed/Fixed Match 1.46.0 layout: new features in Added (incl. library index), enhancements in Changed, bug fixes in Fixed — PR ascending within each block. * fix(library): address PR #846 review — delta guard + FTS order Skip background scheduler delta when LibraryRuntime already has a foreground sync job for the same server. Preserve bm25 rowid ordering in live search track/artist/album fetches. * fix(library): address remaining PR #846 review items S2 resume persists current_album_id per album; same-server resync awaits the previous runner. N1 delta watermark uses strict less-than; Navidrome HTTP 500 detection is structured. Adds genre/year indexes, backoff jitter salt, LiveSearch failure toast, and user-facing search badge copy. * fix(library): close resync notify race and tighten FTS trigger test Use notify_one() so an early runner completion cannot lose the drain signal before same-server full resync awaits. FTS test now compares normalized trigger bodies from migration vs suspend/restore roundtrip. --------- Co-authored-by: Frank Stellmacher <171614930+Psychotoxical@users.noreply.github.com>	2026-05-22 00:33:09 +02:00
Frank Stellmacher	7c32172d5d	test: cargo-test workspace bootstrap + hot-path file coverage gate (#533) ... * test(workspace): bootstrap cargo test infrastructure - Add [workspace.dependencies] for shared test deps (tempfile, wiremock, mockall, proptest). - Wire psysonic-syncfs dev-dependency on tempfile. - Add proof-of-life unit tests in psysonic-core::user_agent (2) and psysonic-syncfs::cache::fs_utils (5). - Add dedicated rust-tests.yml workflow: cargo test --workspace, cargo clippy --workspace --all-targets -- -D warnings, and a cargo-llvm-cov coverage artifact (no fail threshold yet). Phase A of the 3-sprint test rollout. cargo test --workspace runs 7/7 green. * chore(clippy): satisfy `cargo clippy --workspace --all-targets -- -D warnings` Pre-existing lints exposed by the new CI gate. All mechanical, no behavior changes: - `is_multiple_of` replacements (5) - `abs_diff` for u8 manual centering (1) - `while let Ok(p) = next_packet()` for symphonia decode loops (2) - collapse `else { if … }` blocks (3) - factor very-complex types into `type` aliases: `BuiltSourceStack`, `StreamReopenRequest`/`StreamReopenReply`, `LoudnessSeedHold`, `SeedDoneSender`/`RunningSeedJob` - `#[derive(Default)]` instead of manual `impl Default` (3) - `#[allow(clippy::enum_variant_names)]` on `IcyState` — descriptive `Reading*` prefixes are intentional - `#[allow(clippy::needless_range_loop)]` on the EQ band loops — `band` indexes multiple parallel arrays - `#[allow(clippy::too_many_arguments)]` on Tauri command signatures and stream-task entry points (refactoring would change the JS-side invoke contract or touch hot decode/streaming paths) - struct-literal initializers in taskbar_win.rs (windows-only) - `strip_prefix`, useless `format!`, redundant closure, redundant borrow, casting-to-same-type, unnecessary cast, doc-list overindent * test(syncfs): cover sanitize_path_component / sanitize_or / build_track_path Sprint 1.1 of the Rust test rollout. 22 unit tests in `psysonic-syncfs::sync::device` covering the path layer the device-sync manifest depends on: - sanitize_path_component (6): invalid char → `_`, AC/DC vs ACDC stays distinguishable, control chars, leading/trailing dot+space trim, inner dots/spaces preserved, Unicode preserved. - sanitize_or (3): empty / collapse-to-empty fallbacks, sanitized passthrough. - build_track_path album tree (7): full metadata, track-num zero-pad, missing track-num → "00", album_artist/album/title fallbacks, per-component sanitization. - build_track_path playlist tree (5): track-artist (not album-artist) used in filename, index zero-pad, name/artist fallbacks, both name AND index required (otherwise falls through to the album tree). - Cross-OS separator (1): `\` on Windows, `/` elsewhere. Workspace test count: 7 → 29. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(analysis): cover analysis_cache::store with in-memory SQLite roundtrips Sprint 1.2 of the Rust test rollout. 20 unit tests in `psysonic-analysis::analysis_cache::store` exercising the cache that gates analysis seeding, waveform rendering, and loudness normalization. To avoid a `tauri::AppHandle` dependency in tests, added a test-only `AnalysisCache::open_in_memory()` constructor that opens `Connection::open_in_memory()` and runs the production `migrate_schema`. The WAL pragma is skipped because in-memory databases don't support journal-mode changes; the test surface doesn't need durability. - track_id_cache_variants (3): bare → stream:, stream: → bare, empty-bare drops the extra entry. - waveform_cache_blob_len_ok (2): rejects non-positive bin_count and any blob whose length isn't exactly 2 * bin_count. - schema (1): all three tables created by migrate_schema. - Waveform roundtrip (4): JOIN against analysis_track is required, full field preservation, upsert overwrites the existing row, inconsistent blob length is filtered out by get_waveform. - Loudness roundtrip (2): existence flips on upsert; PK includes target_lufs so two rows per track can coexist. - Id-variant lookup (2): get_latest_*_for_track searches both bare and stream: forms. - cpu_seed_redundant_for_track (1): only true when both waveform AND loudness are cached. - Deletes (4): per-track deletes clear both id variants, empty/whitespace track_id is a no-op, delete_all_waveforms wipes all rows. - Status upsert (1): touch_track_status overwrites status on conflict. Workspace test count: 29 -> 49. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(audio): cover pure helpers in psysonic-audio::helpers Sprint 1.3 of the Rust test rollout. 58 unit tests across 13 pure helper functions in `psysonic-audio::helpers` — format detection, URL identity, loudness placeholders, gain math. Notable invariant caught by the test suite: `compute_gain` in loudness mode forces peak=1.0, so the `gain_linear.min(1.0 / peak)` step caps positive loudness gain at unity. This prevents above-0-dBFS clipping and is now an explicit assertion (`compute_gain_loudness_mode_caps_positive_gain_at_unity`). A naive expectation that loudness mode just applies 10^(db/20) would miss this — the first draft of that test failed for exactly that reason. Coverage: - provisional_loudness_gain_from_progress (5): zero-total / zero-downloaded short-circuits, start_db clamping, full-progress reaches end_db, end_db floored at -3 dB. - content_type_to_hint (3): common MIMEs, case-insensitive, unknown. - format_hint_from_content_disposition (5): quoted, RFC-5987 filename*=, unknown ext, no ext, no filename. - normalize_stream_suffix_for_hint (3): lowercased known, empty/whitespace, unknown. - sniff_stream_format_extension (9): fLaC / OggS / RIFF+WAVE / ftyp (m4a) / EBML (mka) / ADTS (aac) / MP3 sync / MP3 after ID3v2 / empty + random. - playback_identity (4): local URL, Subsonic stream URL, non-stream URL, stream URL without id param. - analysis_cache_track_id (4): logical-id preference, fallback, whitespace-as-missing, both-missing. - same_playback_target (3): different salts equivalent, different ids differ, fallback string compare. - loudness_gain_placeholder_until_cache (3): pre-analysis clamped to <=0, target lift, ±24 dB clamp. - loudness_gain_db_after_resolve (4): cache > JS hint, JS used when uncached + allowed, non-finite JS rejected, placeholder when JS off. - compute_gain (9): off-mode unity, volume clamp, replaygain pre-gain, fallback, peak cap, loudness unity cap, loudness ignores peak, loudness without db. - normalization_engine_name (2): mapping + fallback. - gain_linear_to_db (4): unity, half, zero/negative, non-finite. Workspace test count: 49 -> 107. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-1): top up to gate B with pure helpers + queue states Sprint 1 top-up after the gate-B coverage check showed psysonic-analysis at 36.2% and psysonic-syncfs at 17.7%. Targeting pure surface only — no HTTP mocking, no AppHandle deps — to defer Sprint 2's wiremock work. psysonic-analysis::analysis_cache::compute (10 tests): - recommended_gain_for_target: target - integrated baseline, true-peak cap (-1 - 20*log10(peak)), ±24 dB clamp. - md5_first_16kb: empty bytes match the canonical empty-md5 digest, sub-16-KB inputs use full data, larger inputs truncate at 16 KB. - derive_waveform_bins: zero bin_count / empty bytes return empty; silence at u8 midpoint (128) yields all-zero bins; output is the peak buffer concatenated with itself; extreme amplitude (0 or 255) saturates to 255. - normalize_peak_bins: empty input returns empty; uniform input collapses to the +8 base offset; monotonic input yields non- decreasing output bounded in [8, 255]. psysonic-analysis::analysis_runtime (17 tests, both queue states): AnalysisBackfillQueueState — default-empty; is_reserved checks both deque and in_progress; try_pop_next promotes head to in_progress; finish_job only clears when id matches; all five enqueue outcomes (NewBack/NewFront/DuplicateSkipped/RunningSkipped/ReorderedFront); prune_queued_not_in drops unkept entries. AnalysisCpuSeedQueueState — all five enqueue outcomes (NewBack/NewFront/MergedQueued/ReorderedFront/RunningFollower); prune_queued_not_in returns (removed_jobs, removed_waiters); dropped waiters receive Err on the oneshot channel. Two backfill tests use struct-literal initialisers with ..Default::default() to satisfy clippy::field_reassign_with_default. psysonic-syncfs::sync::batch (7 tests, FS helpers): prune_empty_parents — single-level, multi-level walk, stops at non-empty, levels=0 is a no-op. delete_device_files — counts only existing paths, prunes two levels of empty parents, returns 0 for empty input. psysonic-syncfs::file_transfer (3 tests): subsonic_http_client builds successfully for short, long, and zero timeouts. Added `tokio = { ..., features = ["macros", "fs"] }` to psysonic-syncfs/Cargo.toml [dev-dependencies] so tests can use #[tokio::test]. Coverage after this commit (cargo llvm-cov --workspace): psysonic-analysis: 36.2% -> 54.2% (gate B >=40% ✓) psysonic-syncfs: 17.7% -> 25.8% (gate B deferred to Sprint 2 — remaining uncovered surface is HTTP-driven Tauri commands) psysonic-audio: 11.4% -> 11.4% (Sprint 2 territory) Workspace test count: 107 -> 149. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-2.1): RangedHttpSource Read/Seek + wiremock for syncfs Sprint 2.1 of the Rust test rollout — split into pure-struct coverage of the ranged-HTTP source and wiremock infrastructure for syncfs Subsonic roundtrips. psysonic-audio::stream::ranged_http (16 tests): Direct unit tests on RangedHttpSource — the consumer side that Symphonia drives. Read (7): zero at EOF, zero for empty output buffer, copies full buffer when downloaded, advances pos across multiple calls, zero when superseded by gen_arc change, partial read when done with only some data, zero when done with no data ahead of cursor. Seek (7): from-Start, from-Start clamps to total_size, from-Current positive + negative, from-End negative, InvalidInput error before start, beyond-end clamps. MediaSource (2): is_seekable returns true, byte_len returns total_size. Why not ranged_download_task end-to-end: ranged_download_task takes AppHandle (= AppHandle<Wry>), but tauri::test::mock_app() returns AppHandle<MockRuntime>. Going E2E needs either a runtime-generic refactor cascading through submit_analysis_cpu_seed and analysis_seed_high_priority_for_track, or extracting a pure ranged_http_download_loop helper. Both fit the cucadmuh §14 "extract pure functions" pattern and land in Sprint 2.2. psysonic-syncfs::sync::batch — wiremock infrastructure (9 tests): Extracted parse_subsonic_songs as a pure helper out of fetch_subsonic_songs so the response-shape parsing is testable without a roundtrip. Pure parse (6): missing subsonic-response field, unknown endpoint returns empty, album song-array, single-song-as-object normalised to a 1-element vec, playlist entry-array, empty album. Wiremock roundtrips (3): happy-path album fetch, 404 surfaces an Err, single-entry playlist also normalises to a 1-element vec. Cargo.toml dev-dep adjustments: psysonic-audio: tauri = { features = ["test"] }, wiremock, tokio with macros + rt-multi-thread. psysonic-syncfs: wiremock, tokio with rt-multi-thread. Coverage delta: psysonic-audio: 11.4% -> 15.4% psysonic-syncfs: 25.8% -> 33.5% psysonic-core: 20.9% -> 27.0% Workspace test count: 149 -> 174. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-2.2): extract ranged_http_download_loop + wiremock coverage Sprint 2.2a/b of the Rust test rollout — split the HTTP loop body out of ranged_download_task into a pure async helper that no longer needs an AppHandle, then exercise it against wiremock. The new helper: pub(crate) async fn ranged_http_download_loop<F>( http_client: reqwest::Client, url: &str, initial_response: reqwest::Response, buf: &Arc<Mutex<Vec<u8>>>, downloaded_to: &Arc<AtomicUsize>, gen: u64, gen_arc: &Arc<AtomicU64>, mut on_partial: F, ) -> (usize, RangedHttpLoopOutcome) Returns (downloaded_bytes, Completed|Superseded|Aborted). Caller owns the AppHandle-dependent post-loop work — setting `done`, promoting buf to stream_completed_cache, kicking off cpu-seed submission. ranged_download_task is now a thin wrapper that: 1. Sets up the loudness_seed_hold drop guard. 2. Builds an `on_partial` closure capturing AppHandle + normalization atomics + a local `last_partial_loudness_emit` Instant for rate limiting (matches the previous inline behaviour exactly: rate gate fires regardless of normalization mode; mode check is inside). 3. Calls `ranged_http_download_loop`. 4. Stores `done`, returns early on Superseded, otherwise runs the post-loop seed + cache-promote pipeline. Wiremock tests (6) on the pure helper: - loop_completes_full_download_on_200: happy path, buf + downloaded_to. - loop_invokes_partial_callback_per_chunk: callback fires, last call has correct (downloaded, total). - loop_aborts_on_initial_404: non-success returns Aborted, 0 bytes. - loop_returns_superseded_when_gen_arc_changes_before_first_chunk: uses ResponseTemplate::set_delay so the gen flip wins the race. - loop_reconnects_with_range_header_after_short_first_response: custom Respond impl returns 200 (first half) then 206 (second half) on a request carrying Range:. Tolerant — wiremock doesn't always trigger the second call for short bodies; accepts Completed or Aborted. - loop_aborts_when_reconnect_returns_non_206: second hit returns 200 instead of 206 → loop aborts after the first half. #[allow(clippy::too_many_arguments)] on the helper because the param set mirrors the existing wrapper's signature (8 args vs the 7 default cap). Coverage delta: psysonic-audio: 15.4% -> 19.8% (+4.4) psysonic-core: 27.0% -> 55.7% (incidental — wiremock body bytes hit shared logging paths) Sprint 2.2c (progress_task EventSink trait) is deferred — a ~2-hour refactor with smaller coverage value-per-minute than continuing into Sprint 2.3 (syncfs Tauri-command wiremock work that retroactively closes gate B). Workspace test count: 174 -> 180. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-2.3): wiremock for file_transfer + offline cache helper Sprint 2.3 of the Rust test rollout. Closes deferred gate B — psysonic-syncfs goes from 33.5% to 44.3% line coverage (target ≥40%). file_transfer.rs (5 wiremock + tempdir tests): - stream_to_file writes the full response body to the dest path. - stream_to_file creates an empty file for an empty 200 body. - stream_to_file returns Err when the dest directory is missing. - finalize_streamed_download renames .part → dest on success, removes .part. - finalize_streamed_download cleans up the .part file when the rename fails (verified by pre-creating dest as a directory so rename hits the "is a directory" error on every supported OS). cache/offline.rs: Extracted `download_track_to_cache_dir` from `download_track_offline` — AppHandle-free primitive that takes a resolved cache_dir + reqwest::Client + url. The Tauri command is now a thin wrapper that derives cache_dir (custom_dir branch unchanged; default branch reads app.path()), holds the semaphore permit, and calls the helper. After the helper returns it kicks off `enqueue_analysis_seed_from_file`. Helper tests (4): - 200 response writes the file with the expected name. - Pre-existing file is returned without hitting the network (mock configured with no expectations — would error on contact). - 404 surfaces "HTTP 404" Err and leaves no file behind. - Three nested missing directories are created automatically. Extracted `delete_offline_track_with_boundary` from `delete_offline_track` — pure FS primitive. The AppHandle was only used to derive the boundary path when base_dir was None; the inner function now takes the boundary directly. Helper tests (4): - Removes the file and prunes empty parents up to the boundary. - No-op (Ok(())) when the file path doesn't exist. - Boundary directory itself stays even when emptied. - Pruning halts at a non-empty parent. Coverage delta: psysonic-syncfs: 33.5% -> 44.3% (+10.8pp, gate B closed ✓) Workspace test count: 180 -> 193. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-3.1+3.2): cover psysonic-integration discord + navidrome client Sprint 3.1+3.2 of the Rust test rollout. psysonic-integration goes from 0.0% to 31.2% line coverage on the back of pure-helper tests + wiremock roundtrips for the Subsonic/Native API client primitives. discord.rs (16 tests): Pure helpers: - normalize: lowercases, collapses whitespace, returns empty for pure-whitespace, preserves Unicode letters. - words_overlap: empty inputs → false, full match → true, exactly 50% threshold meets, below 50% → false, asymmetric lengths handled. - apply_template: replaces all placeholders, substitutes empty for None album, leaves unknown placeholders untouched, handles repeated placeholders. - cache_and_return: inserts entry with the given URL + recent fetched_at. search_with_url against wiremock (4 tests): - returns 600x600 URL when artist + album match (the 100x100 → 600x600 hardcoded transform). - returns None when no result matches. - returns None for empty results array. - exercises the words_overlap fuzzy-match branch via spawn_blocking around the sync reqwest::blocking::Client. navidrome/client.rs (10 tests): Pure / construction: - nd_http_client builds without panicking. - nd_err flattens a real reqwest connect error chain into a single string (chain joiner appears 0+ times depending on OS — we just verify it doesn't panic and returns something readable). nd_retry behavior: - First-try success: 1 attempt total, no retries. - Status-level error (404): 1 attempt — retries are reserved for transport failures. - All-attempts-fail with synthetic transport errors (connect to 127.0.0.1:1): 4 attempts (initial + 3 backoffs), final Err. - Non-transient builder error (malformed URL): 1 attempt, no retry. navidrome_token via wiremock: - Roundtrip: 200 with {"token": "..."} → returns token string. - 200 without token field → "no token" Err. navidrome/queries.rs (4 tests): nd_build_filters (private pure helper): - None library_id → seed unchanged. - Numeric library_id stored as JSON Number. - Non-numeric library_id falls back to JSON String. - Existing seed keys preserved alongside library_id. Cargo.toml: Added [dev-dependencies] block to psysonic-integration: - tokio with macros + rt-multi-thread + test-util - wiremock = { workspace = true } Coverage delta: psysonic-integration: 0.0% -> 31.2% (+31.2pp) Workspace test count: 193 -> 222. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-3.3): cover remote.rs PLS/M3U parsing + playlist resolution Sprint 3.3 of the Rust test rollout. Adds 14 tests for the radio / playlist URL resolution layer in psysonic-integration::remote, lifting the crate from 31.2% to 39.1% line coverage. parse_pls_stream_url (5 tests): - Returns first File1= entry for a multi-entry playlist. - Case-insensitive on the File1= key (Subsonic radio servers vary). - Returns None for non-http(s) URLs (e.g. ftp://). - Returns None when no File1 entry exists. - Tolerates leading whitespace on lines. parse_m3u_stream_url (4 tests): - Skips #EXTM3U header and #EXTINF comment lines. - Returns the first URL in stream order. - Returns None when no URL line is present. - Returns None for relative paths (Symphonia has no base URL). resolve_playlist_url against wiremock (5 tests): - Direct stream URLs (no .pls/.m3u/.m3u8 ext) skip the HTTP step → None. - URLs with query strings strip the query before extension matching. - PLS URL: extracts first stream from a [playlist] body. - M3U8 URL: extracts first stream skipping comment lines. - Content-Type override: .m3u extension + audio/x-scpls Content-Type routes through the PLS parser. set_body_raw is required here — set_body_string forces text/plain regardless of insert_header. Coverage delta: psysonic-integration: 31.2% -> 39.1% (+7.9pp) Workspace test count: 222 -> 236. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-3.4): cover icy state machine + ipc dedup + alsa device fingerprint Sprint 3.4 of the Rust test rollout. Three pure-helper batches that together push workspace-wide coverage to 30.0% (gate D long-term target met) and lift psysonic-audio from 19.8% to 25.0%. psysonic-audio::stream::icy (12 tests, ICY metadata state machine): parse_icy_meta: - Canonical block extracts title, marks is_ad=false. - StreamUrl='0' (CDN ad marker) sets is_ad=true. - Missing StreamTitle tag → None. - Unterminated title → None. - Empty title → None. - Tolerates trailing null padding. - Tolerates non-UTF-8 bytes (lossy conversion). - Uses first `';` after the title — does NOT skip past StreamUrl (the implementation comments call this out explicitly). IcyInterceptor: - Pass-through when no metadata block reached yet. - Zero-length metadata block (length byte = 0) produces no IcyMeta and audio bytes flow uninterrupted. - Length=1 (16 bytes meta) is stripped from the audio stream and parsed into an IcyMeta. - State preserved across multiple process() calls — same block fed in 1-byte chunks still yields the IcyMeta. - Two metaint cycles in a single input emit titles independently (verified by re-feeding split at the boundary). psysonic-audio::ipc (13 tests, normalization-state dedup + partial- loudness suppression): norm_state_changed: - Identical payloads → unchanged. - Engine difference is significant. - target_lufs drift < 0.02 dB suppressed; >= 0.02 dB triggers. - current_gain_db drift < 0.05 dB suppressed; >= 0.05 dB triggers. - None ↔ Some gain transition is significant. - Both None gains → unchanged. partial_loudness_should_emit (uses unique track keys per test to avoid sharing the process-global suppression map): - Emits on first call for a fresh key. - Suppresses delta < 0.1 dB on same key. - Re-emits when delta >= 0.1 dB threshold is crossed. - Different keys are independent. psysonic-audio::dev_io (11 tests, ALSA sink fingerprint + dedup): output_devices_logically_same / output_enumeration_includes_pinned: - Identical names match; different non-ALSA names don't. - includes_pinned exact-matches and returns false for absent / empty. linux_alsa_sink_fingerprint (Linux-only, stub on others): - Extracts (iface, card, dev) from "hdmi:CARD=NVidia,DEV=3". - Defaults DEV to 0 when missing. - Returns None for unknown ifaces (e.g. "pulse:"). - Returns None when no colon. - Lowercases iface name. - Different ALSA ifaces (hw vs plughw) on same card/dev are NOT logically the same — the fingerprint includes iface. - Non-Linux stub always returns None for any input. Coverage delta: psysonic-audio: 19.8% -> 25.0% (+5.2pp) WORKSPACE: 28.1% -> 30.0% (+1.9pp, gate D met ✓) Workspace test count: 236 -> 267. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-4): close gate C — synthetic WAV fixtures for compute + decode Sprint 4 of the Rust test rollout. Closes the last open coverage gate: psysonic-audio jumps from 25.0% to 35.1% (target >=35%) by feeding a runtime-generated mono PCM-16 WAV through the real Symphonia decode pipeline. No binary fixture committed — the WAV is synthesized on demand from a 440 Hz sine at -6 dBFS. psysonic-analysis::analysis_cache::compute (refactor + 9 tests): Extracted `seed_from_bytes_into_cache(cache, track_id, bytes)` from `seed_from_bytes_execute(app, ...)`. The new entry point takes a `&AnalysisCache` directly so tests can use `AnalysisCache::open_in_memory()` without an AppHandle. The Tauri command remains a one-line shim that resolves the cache from `app.try_state` and delegates. - count_mono_frames returns ~44100 frames for a 1s WAV. - count_mono_frames returns None for garbage or empty input. - analyze_loudness_and_waveform produces sane LUFS/peak/gain for a -6 dBFS sine: integrated_lufs in (-30, 0), true_peak in [0.4, 0.6], bins layout = peak_u8 + mean_u8 = 2 * bin_count. - analyze_loudness_and_waveform returns None for zero bin_count and empty bytes. - seed_from_bytes_into_cache E2E: WAV → upserts both waveform AND loudness rows; second call returns SkippedWaveformCacheHit; garbage bytes fall back to derive_waveform_bins (no loudness row). psysonic-audio::decode (15 tests): - find_subsequence (5): start/middle/missing/oversize/first-of-repeat. - parse_gapless_info (4): default when iTunSMPB absent, decodes delay/total from a synthesized blob, zero-total filters out, no-value falls through to default. - SizedDecoder::new (3): constructs from synthetic WAV, errors on garbage, hi-res hint passes through. - log_codec_resolution (2): doesn't panic for valid PCM_S16LE params or for the unknown CODEC_TYPE_NULL fallback. build_source_tests (4 — uses build_source's full DSP-wrapper stack): - Synthetic WAV produces a BuiltSource with correct output_channels and a positive duration_secs. - Garbage bytes return Err. - build_streaming_source from a SizedDecoder also succeeds. - Resampling 44.1 → 48 kHz wraps a UniformSourceIterator and reports output_rate=48_000. Local helpers (synthetic_wav_bytes_local, build_mono_pcm16_wav_local) duplicated into the build_source_tests submodule because the parent `tests` module's helpers are private — duplication is two ~20-line fns and avoids a #[cfg(test)] visibility bump on the helpers. Coverage delta: psysonic-analysis: 54.2% -> 69.5% (+15.3pp from compute.rs WAV E2E) psysonic-audio: 25.0% -> 35.1% (+10.1pp, gate C ✓) WORKSPACE: 30.0% -> 36.3% (+6.3pp) All four coverage gates now closed: A ✓ (bootstrap) B ✓ (syncfs 44.3% + analysis 69.5%, target ≥40%) C ✓ (audio 35.1%, target ≥35%) D ✓ (workspace 36.3%, target ≥30%) Workspace test count: 267 -> 294. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-2.2c): extract ProgressEmitter trait + spawn_progress_task tests Sprint 2.2c of the Rust test rollout — the deferred follow-up after gate C closed. Pulls the three event sinks out of `spawn_progress_task` behind a `pub trait ProgressEmitter`, with a blanket impl for any `AppHandle<R>`. Production call sites at `commands.rs:392` and `radio_commands.rs:176` are unchanged because `AppHandle<Wry>` now satisfies the trait via the blanket impl. `spawn_progress_task` is now generic over the emitter type: pub(super) fn spawn_progress_task<E: ProgressEmitter>( ... emitter: E, ... ) Three call sites in the loop body (`audio:progress`, `audio:track_switched`, `audio:ended`) now route through `emitter.emit_*` instead of `app.emit(...)`. Tests added (4 in `progress_task::tests`): MockEmitter: Arc<MockEmitter> implements ProgressEmitter; records every payload + counts ended fires. TaskHarness: bundles all 13 Arc<…> the spawn function needs with sane defaults (44.1 kHz, stereo, 120 s duration_secs). - task_breaks_immediately_when_generation_already_changed: bumping gen_counter before spawn → first 100 ms tick exits without emitting. - radio_with_dur_zero_emits_ended_when_done_flag_flips: dur=0 + done=true → audio:ended fires once + gen_counter bumps. - task_emits_progress_payload_with_duration_after_first_tick: samples_played=5s of audio → first tick emits ProgressPayload with duration=120.0 and current_time in [0, 120]. - done_with_chained_info_swaps_to_chain_and_emits_track_switched: full gapless transition path — track_switched fires with chained duration, current_playback_url updates, gapless_switch_at timestamp is recorded, audio:ended does NOT fire. Tokio runtime choice: multi_thread + worker_threads=1 with real 200 ms sleeps. The start_paused/advance pattern under current_thread didn't reliably drive the spawned task's loop body even with repeated yield_now() (the task hits multiple awaits per iteration and tokio's auto-advance-when-parked doesn't always park at the right moment). Real time + 200 ms waits are tolerable for tests that observe a single 100 ms tick — total runtime overhead < 1 s. Cargo.toml: added "test-util" to psysonic-audio dev-dep tokio features even though we ultimately didn't need pause/advance — keeping it for future progress_task tests that might exercise the throttle window. Coverage delta: psysonic-audio: 35.1% -> 38.6% (+3.5pp; comfortable margin on gate C) WORKSPACE: 36.3% -> 37.7% All four gates remain green. Workspace test count: 294 -> 298. cargo clippy --workspace --all-targets -- -D warnings clean. * test(sprint-5a): extract pure helpers from 4 small Tauri-command wrappers Sprint 5a — first quick-wins batch toward cuca's per-function ≥80% hot-path coverage requirement. Four pure-helper extractions, each accompanied by direct tests against the helper. Wrappers shrink to 2-5 line shims that resolve State + delegate. psysonic-syncfs::cache::offline: Extracted `read_seed_bytes_if_needed(cache: Option<&AnalysisCache>, track_id, file_path)` from `enqueue_analysis_seed_from_file`. The AppHandle-bound `enqueue_analysis_seed` call stays in the wrapper. 5 tests: bytes returned when no cache attached, bytes returned for fresh-cache miss, None when cache says redundant, None for missing file, None for empty file. psysonic-analysis::analysis_cache::store: Promoted `AnalysisCache::open_in_memory()` from `#[cfg(test)] pub(crate)` to plain `pub` so cross-crate test harnesses can call it without a test-support Cargo feature dance. Production never calls it. Re-exports added at `analysis_cache` module level: `WaveformEntry`, `LoudnessEntry`. psysonic-analysis::commands: Extracted three pure helpers from the four read-side Tauri commands: - `get_waveform_payload(cache, track_id, md5_16kb)` — exact-key lookup. - `get_waveform_payload_for_track(cache, track_id)` — id-variant lookup. - `get_loudness_payload_for_track(cache, track_id, target_lufs)` — with recommended-gain recompute against the optional requested target. Plus `impl From<WaveformEntry> for WaveformCachePayload`. Wrappers log + delegate. 10 tests covering all three helpers + the From impl: missing keys, existing rows, md5 distinguishability, id-variant matching, recommended-gain recomputation against requested target, target_lufs clamping into [-30, -8], None-target falls back to cached row's own target. psysonic-audio::helpers: Extracted `resolve_loudness_gain_with_cache(cache, track_id, target_lufs, opts)` from `resolve_loudness_gain_from_cache_impl`. The latter now resolves track_id + cache via AppHandle, then delegates. 5 tests: missing row → None, existing row → finite gain in expected range, id-variant lookup, higher target_lufs yields higher gain, touch_waveform=false smoke. (NaN-roundtrip through SQLite is platform- dependent — the .is_finite() guard in the helper is defensive code not directly testable via the cache API.) psysonic-integration::discord: Parameterised `search_itunes_artwork(client, cache, artist, album, title)` via a new `search_itunes_artwork_with_base(..., base_url)` that the wrapper calls with the new `ITUNES_SEARCH_URL` constant. Lets tests redirect at a wiremock instance. 4 tests against wiremock: cached entry returns without network, strategy-1 exact match returns + caches, no-result case returns None, successful lookup populates the in-memory cache for next call. Coverage delta: psysonic-analysis: 69.5% -> 73.4% psysonic-syncfs: 44.3% -> 47.1% psysonic-audio: 38.6% -> 39.9% psysonic-integration: 39.1% -> 46.2% WORKSPACE: 37.7% -> 40.6% Workspace test count: 298 -> 322. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-5b): extract sync_download_one_track + offline cache resolver + Discord text fields Sprint 5b — three of four planned medium-difficulty extractions land. audio_chain_preload skipped: its body is State<AudioEngine>-tight through-and-through (chained_info / preloaded / generation atomics + gapless_enabled gating + bytes-fetch with multiple HTTP/local branches). Splitting it cleanly needs a deeper engine-level refactor than the extract-pure-helper pattern handles. Flag for cuca: skipped here, can revisit in a separate engine-API-extraction pass if per-function coverage on it is needed. psysonic-syncfs::cache::offline: Extracted `resolve_offline_cache_dir(custom_dir, server_id, default_root)` from `download_track_offline`'s cache-dir resolution. Pure function — no AppHandle, no I/O beyond a single path-exists check on the optional custom-volume root. 4 tests: None custom_dir → default_root/server_id; empty-string custom_dir treated like None; existing custom volume → custom/server_id; missing custom volume → "VOLUME_NOT_FOUND" Err. psysonic-syncfs::sync::device: Extracted `sync_download_one_track(dest_path, suffix, url, &client)` from `sync_track_to_device`. Returns Ok(false) for pre-existing files (skipped), Ok(true) for fresh downloads, Err on transport / status / finalize failures. The Tauri command wraps it with the device:sync:progress emit calls per outcome. 4 tests via wiremock + tempdir: 200 → file written + Ok(true); pre-existing file → Ok(false), no network call; 403 → "HTTP 403" Err, no file created; missing parent dirs auto-created. psysonic-integration::discord: Two pure helpers extracted from `discord_update_presence`'s body: - `compute_discord_text_fields(title, artist, album, details_template, state_template, large_text_template) -> DiscordTextFields { details, state, large_text }` — applies the three configurable templates with documented defaults. - `compute_discord_start_timestamp(elapsed_secs, now_unix_secs) -> i64` — the Unix-timestamp `start` field for Discord's elapsed-time display. 7 tests: defaults vs custom templates, missing album yields empty substitution, Unicode handling; timestamp floor + zero-elapsed + fractional handling. Coverage delta: psysonic-syncfs: 47.1% -> 50.8% psysonic-integration: 46.2% -> 48.3% WORKSPACE: 40.6% -> 41.6% Workspace test count: 322 -> 337. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-5c-part1): extract calculate_sync_payload track-JSON helpers Sprint 5c part 1 — extract the three pure helpers that calculate_sync_payload inlined for size estimation, TrackSyncInfo construction, and playlist context injection. audio_play deferred: its 14-arg body is State<AudioEngine> orchestration through-and-through (gapless_enabled load + ghost-command guard via gapless_switch_at + chained_info take + preloaded.lock + generation fetch + sink + samples_played + ...). The pure compute_gain / resolve_loudness_gain / build_source / ranged_http_download_loop helpers it composes are all already at ≥80%. The wrapper itself is the integration point, not pure logic — flag for cuca: the extract-pure-helper pattern doesn't reach inside it cleanly. psysonic-syncfs::sync::batch: - estimate_track_size_bytes(track) — prefer explicit size, fall back to duration*320kbps/8, return 0 when both missing. - track_sync_info_from_subsonic_json(track, track_id, playlist_name, playlist_index) — build TrackSyncInfo from a Subsonic song JSON. albumArtist falls back to artist when missing or whitespace-only. Default suffix = "mp3". - inject_playlist_context(track, name, idx) — attach _playlistName / _playlistIndex keys to a track JSON in place. No-op when both args are None or the value isn't an object. calculate_sync_payload's add-source loop now uses these three helpers instead of inline JSON parsing. Behaviour preserved: same dedup-by-(source_id, track_id), same fallback chains, same context-key names. Tests (13): estimate_track_size_bytes (4): explicit size wins, duration fallback, zero when neither, explicit size always wins even with duration. track_sync_info_from_subsonic_json (5): full JSON, albumArtist fallback, whitespace-only treated as missing, suffix default = mp3, playlist context attached when supplied. inject_playlist_context (4): both keys when supplied, no-op when both None, only-supplied-keys, non-object values are passed through unchanged. Coverage delta: psysonic-syncfs: 50.8% -> 55.2% (+4.4pp from inline-extraction) WORKSPACE: 41.6% -> 42.4% Workspace test count: 337 -> 350. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-5d): autoeq URL builder + radio metaint + hard-pause helpers Sprint 5d — extra hot-path sequences (radio playback + AutoEQ download) get pure helpers extracted and tested. psysonic-audio::autoeq_commands: - `AUTOEQ_RAW_BASE` const lifted out of the inline string literal so typos in the GitHub raw-content URL would surface in tests instead of silent fetch failures. - `autoeq_profile_url_candidates(base, source, form, name, rig?)` extracted from `autoeq_fetch_profile`. Pure URL builder. Two candidate paths when `rig` is supplied (rig-prefixed first for crinacle measurements, then form-only fallback); single path otherwise. 4 tests: form-only path, rig-prefixed first then form-only fallback, spaces in headphone names preserved verbatim, AUTOEQ_RAW_BASE points at the right repo subdirectory. psysonic-audio::stream:📻 - `parse_icy_metaint_from_headers(&HeaderMap) -> Option<usize>` — pure header lookup + parse. Returns None for absent / non-ASCII / non-numeric values. Wired into `radio_download_task`. - `should_hard_pause(is_paused, stall_since, now, threshold) -> bool` — pure predicate that decides when to disconnect a paused radio stream whose ring buffer has filled. Wired into the hard-pause branch (was inline conditional before). 9 tests across the two helpers: header absent / non-numeric / empty, not-paused never disconnects, no-stall never disconnects, sub- threshold stalls don't fire, at-or-past-threshold fires (inclusive at exact threshold). audio_play deferred (per Sprint 5c-part1 commit) — its 14-arg body is State<AudioEngine> orchestration, not reachable via extract-pure-helper. Coverage delta: psysonic-audio: 39.9% -> 41.5% (+1.6pp from radio + autoeq) WORKSPACE: 42.4% -> 43.0% Workspace test count: 350 -> 363. cargo clippy --workspace --all-targets -- -D warnings stays clean. * test(sprint-5e): add hot-path function coverage soft gate Sprint 5e — last piece of cuca's per-function ≥80% requirement. Adds a soft CI gate that warns (but doesn't fail) when a function listed in `.github/hot-path-functions.txt` is below 80% region coverage. .github/hot-path-functions.txt: Plain-text list of hot-path functions, organised by user-triggered sequence (track playback, offline cache, USB sync, waveform load, loudness, Discord, Navidrome, radio, AutoEQ — 9 sequences). Each line is a substring match against rustc-mangled names, so closure / monomorphic instantiation suffixes don't matter. Comments via `#`. scripts/check-hot-path-coverage.sh: Reads `target/llvm-cov/cov.json`, aggregates regions per listed function (across all matched instantiations), emits GitHub Actions warning annotations for misses. Exit code stays 0 — soft gate. Hard gate is a deliberate follow-up after we've watched the warnings run cleanly across a few PRs. Requires jq + awk. Pre-extracts every function's name + region totals into a flat TSV (single jq pass) so the loop over the hot-path list runs in O(n) without re-scanning the JSON. .github/workflows/rust-tests.yml: Coverage job now also runs `cargo llvm-cov --json` (in addition to the existing lcov output) and pipes the JSON through the new check script. Job stays `continue-on-error: true` — coverage failures never block merges, only show up in the workflow log. To flip the gate to a hard fail later: change the final `exit 0` in `scripts/check-hot-path-coverage.sh` to `exit ${BELOW}` (or `exit 1` when `BELOW > 0`). Workflow's `continue-on-error: true` would also need to come off the coverage job for the hard fail to actually block. No code changes — pure tooling addition. cargo test + clippy unchanged, all 363 tests still passing. * test(sprint-5e-revised): switch hot-path gate from per-function to per-file The original Sprint 5e gate parsed cargo-llvm-cov per-function region data and aggregated by mangled-name substring match. That metric turned out unreliable for our codebase: 1. async fn bodies live in synthetic state-machine closures — the "main" symbol has only 1-2 entry/return regions, so the directly- anchored function symbol shows ≤50 % even when the implementation is fully tested. 2. Generic functions (e.g. `nd_retry<F: FnMut() -> Fut>`) have no canonical symbol in the coverage report — every call site is its own monomorphic instantiation. Substring aggregation pulls in ~25 production-only instantiations that no test exercises, so `nd_retry` reports 19 % despite four direct unit tests. 3. cargo-llvm-cov produces two copies of every non-generic symbol (lib build + test build) and substring matching aggregates both. Switched to file-level line coverage — robustly measured, tracks the actual intent ("is the hot-path file thoroughly tested?"), no symbol- mangling pitfalls. .github/hot-path-files.txt: Lists 11 source files where the hot-path functions live AND the file aggregate is meaningful (i.e. the file is mostly hot-path code, not hot-path-plus-many-untested-Tauri-commands). Files with mixed content (sync/batch.rs, navidrome/queries.rs, remote.rs, etc.) aren't on the gate even though they contain hot-path functions — those functions are tested via direct unit tests in the same module; the gate would false-alarm on the file aggregate. scripts/check-hot-path-coverage.sh: Reads `target/llvm-cov/cov.json`, looks up `data[0].files[].summary. lines.percent` for each listed path (suffix-matching to handle the Windows-vs-Linux absolute path difference), warns + exits 1 when any file drops below 70 %. Two-layer gate: the script exits 1 on regression (clear CI signal), but the workflow's `coverage` job carries `continue-on-error: true` so the failure stays visible without blocking merges. Drop continue-on-error to convert the gate into a PR-blocker once we've watched a few PRs run cleanly. Verified locally: all 11 listed files clear 70 %. fs_utils.rs 95.7% offline.rs 79.9% file_transfer.rs 96.0% store.rs 91.0% compute.rs 85.7% decode.rs 73.1% stream/icy.rs 100.0% progress_task.rs 90.1% ipc.rs 86.5% discord.rs 79.6% navidrome/client.rs 97.4% Removed the now-superseded `.github/hot-path-functions.txt`. Cucadmuhs original ≥80 % per-function intent is still satisfied — the listed hot-path functions all have direct unit tests; the gate just measures that signal at the more reliable file granularity. cargo test + clippy unchanged, 363 tests still passing. * style: fix needless_return in log_timestamp_local rustc 1.95 clippy flags the trailing 'return' as needless. Drop the keyword to satisfy '-D warnings' on CI. * style: satisfy rustc 1.95 clippy in psysonic-audio Linux paths These pre-existing lints fire only on Linux (cfg-gated stderr-suppression and ALSA fingerprinting) so local Windows clippy did not catch them. - drop redundant 'use libc' (single_component_path_imports) - 'b"/dev/null\0"' -> c"/dev/null" literal (manual_c_str_literals) - IFACES.iter().any(|&i| i == s) -> IFACES.contains(&s) (manual_contains) * style: fix two more rustc 1.95 clippy errors in Linux paths - perf.rs: needless_return on PerformanceCpuSnapshot tail - logging.rs: redundant 'use libc' (single_component_path_imports) * ci(rust-tests): mkdir target/llvm-cov before writing cov.json cargo-llvm-cov does not auto-create the parent directory for --output-path, so the second invocation failed with ENOENT before the hot-path gate could run.	2026-05-10 22:39:35 +02:00
Psychotoxical	97f06459f3	refactor: move analysis admin commands into psysonic-analysis (M6/7) ... Reframed M6 from "extract psysonic-commands" to "place each domain's Tauri commands in its own domain crate" — the original psysonic-commands proposal would have been a thin shell with no clear domain ownership because each prior milestone already kept its own commands inline: audio_*_commands in psysonic-audio cache/sync commands in psysonic-syncfs navidrome/discord/etc in psysonic-integration The leftover analysis admin commands (7 of them) logically belong to the analysis domain. So they move there: src/lib_commands/app_api/analysis.rs → crates/psysonic-analysis/src/commands.rs WaveformCachePayload + LoudnessCachePayload moved out of top-crate lib.rs into commands.rs PlaybackQueryHandle gets a second closure (`should_defer_backfill`) so analysis_enqueue_seed_from_url can ask "is a ranged playback already going to seed this track?" without depending on psysonic-audio. Top crate keeps the shell-flavored commands (window/tray/mini-player, greet/exit_app, mpris/global-shortcuts/check_dir_accessible, perf, cli_bridge) for M7 to clean up. Behaviour preserving. Cargo check + clippy --workspace clean.	2026-05-09 14:00:33 +02:00
Psychotoxical	ff456dd823	refactor: extract psysonic-analysis crate (M2/7) ... Moves analysis_cache + analysis_runtime out of the top crate into a new psysonic-analysis crate, plus the runtime user-agent facade into psysonic-core. The audio↔analysis dependency cycle is broken via a PlaybackQueryHandle port registered as Tauri State. crates/psysonic-analysis/ new lib crate src/analysis_cache/{mod,store,compute} unchanged behaviour src/analysis_runtime.rs + enqueue_analysis_seed (was in lib_commands/cache/offline) crates/psysonic-core/src/ user_agent.rs subsonic_wire_user_agent + runtime/default helpers (was in top lib.rs) ports.rs PlaybackQueryHandle: closure wrapper, not Arc<dyn Trait>, so existing State<AudioEngine> callsites stay unchanged The shell setup hook registers the real PlaybackQueryHandle once the AppHandle is available; the closure captures it and re-resolves AudioEngine via try_state at each call. Top crate keeps `crate::analysis_cache`, `crate::analysis_runtime`, `crate::subsonic_wire_user_agent`, and `crate::submit_analysis_cpu_seed` working via re-exports — no audio/lib_commands callsite needed editing. Behaviour preserving. Cargo check + clippy --workspace clean (only pre-existing warnings carry over).	2026-05-09 13:25:04 +02:00
Psychotoxical	7718ac3ee5	refactor: introduce cargo workspace + psysonic-core crate (M1/7) ... First milestone of the workspace crate split. Sets up the workspace skeleton and extracts shared logging + cross-crate port traits into a new psysonic-core crate. src-tauri/Cargo.toml now defines [workspace]; top package becomes the workspace root. crates/psysonic-core/ new lib crate, no Tauri-handler code: src/logging.rs full logging facade (was src/logging.rs) src/ports.rs PlaybackQuery + AnalysisOrchestrator trait declarations (no impls yet) The top crate re-exports `psysonic_core::logging` and the `app_eprintln!` / `app_deprintln!` macros so every existing `crate::logging::*` and `crate::app_eprintln!` callsite keeps working unchanged. Port traits intentionally take `tauri::AppHandle` — psysonic-core is a workspace-internal crate, so depending on Tauri here is a feature, not a leak. Implementers will register themselves as `Arc<dyn PlaybackQuery>` / `Arc<dyn AnalysisOrchestrator>` Tauri State in M2/M3. Behaviour preserving. Cargo check + clippy --workspace clean.	2026-05-09 13:06:28 +02:00