bvandeusen
86d67f6fc6
Previous fixes layered AnimatedSwitcher fades on top of a race: the audio_handler broadcasts MediaItem twice on every track change (bare metadata first, then with artUri once AlbumCoverCache resolves) and the image bytes themselves decode asynchronously after the widget mounts. The fades just smeared the resulting placeholder flash without addressing the underlying ordering. Rewrite the decision process around "load first, then swap": **Mini player** (rapid change is acceptable per operator preference): - Drop AnimatedSwitcher entirely - PlayerBar becomes stateful, holds the most-recent non-null artUri - Builds the child MediaItem with artUri = currentArtUri ?? _lastArtUri, so the previous cover stays visible across the null-artUri gap and the new cover snaps in the moment its artUri arrives **Full player** (operator wants the image fully loaded before any visible change): - Introduce _displayedMedia + _displayedDominant state - ref.listen on mediaItemProvider schedules a preload for each new track id (and for the artUri-bearing rebroadcast on the same id) - _scheduleSwap awaits precacheImage on the file:// artUri AND awaits albumColorProvider's future for the dominant color - Only then setState flips _displayedMedia + _displayedDominant in one frame — cover, title, gradient all advance atomically - Drop the per-element AnimatedSwitcher wrappers; the backdrop AnimatedContainer still tweens between successive dominant colors so the gradient transition is smooth, not snap Concurrency: rapid skips drop stale preload completions via _pendingPreloadId. Decode/color failures fall through to the previous dominant + the ServerImage/error-builder fallbacks.
Minstrel mobile client
Flutter (iOS + Android) sibling of the SvelteKit web SPA. v1 first slice ships: scaffold, auth, library browse (home / artist / album), likes, player with background audio + lock-screen controls.
Setup
cd flutter_client
flutter pub get
./tool/sync_shared.sh # copy tokens / error-copy / placeholders from ../web
dart run tool/gen_tokens.dart # regen lib/theme/tokens.dart from shared/fabledsword.tokens.json
flutter run
sync_shared.sh is idempotent. CI runs it on every build; rerun locally
whenever web/src/lib/styles/tokens.json,
web/src/lib/styles/error-copy.json, or
web/static/placeholders/album-fallback.svg changes.
Project layout
See docs/superpowers/specs/2026-05-02-flutter-mobile-foundation-design.md
section 3. Briefly:
lib/api/— dio client, ApiError, error-copy loader, per-surface endpoints.lib/auth/— server URL screen, login screen, AuthController + secure storage.lib/library/— home, artist detail, album detail, providers, widgets.lib/likes/— LikeButton + optimistic toggle controller.lib/player/— audio handler, player provider, mini PlayerBar, NowPlaying.lib/theme/— FabledSword token Dart class (generated), ThemeExtension, ThemeData.lib/shared/— routing (go_router shell), version gate, connection error banner.
shared/fabledsword.tokens.json and assets/error-copy.json are
synced from web/. Don't edit them directly — edit web/src/lib/styles/
and re-run ./tool/sync_shared.sh.
Architecture
- State: Riverpod 2 (
AsyncValue,AsyncNotifier, family providers). - HTTP: dio 5 with a Bearer-auth interceptor; 401 clears the session and the router redirects to login.
- Audio: just_audio wrapped by audio_service for background playback + lock-screen / notification controls.
- Auth: Bearer tokens in flutter_secure_storage. Server already
supports both cookie (web SPA) and Bearer (
internal/auth/session.go). - Routing: go_router with a ShellRoute so the PlayerBar persists
across navigation. Cold launch flow: no server-url →
/server-url, url set / no token →/login, token present →/home.
CI
.forgejo/workflows/flutter.yml runs on push to dev/main, tag pushes,
PR to main, and manual dispatch — path-filtered to flutter_client/**
plus the shared web inputs. Steps: sync, analyze, test, build APK.
Debug APKs upload as artifacts; release APKs attach to the Forgejo
release on tag.
Versioning
pubspec.yaml version mirrors the server tag (e.g. server v0.1.0
→ Flutter 0.1.0+1). The server's /healthz returns
min_client_version; old clients show an Update Required modal and
refuse to operate. Bump internal/server/version.go MinClientVersion
when a server-side change requires a paired client update.
Distribution
- Android: APK on the Forgejo release page. No Play Store for v1.
- iOS: TestFlight on tag (manual upload v1, automate later).
Out-of-scope for slice 1
Search, discover, requests, settings beyond server URL, admin, listening history, playlists, offline cache (#357). Those land in subsequent slices with their own brainstorm/spec/plan cycles. Per the operator's M7 ordering decision (2026-05-02), slice 2+ pauses to ship the missing web features first (#352 playlists, #362 theme toggle, #363 queue UI, #364 listening history, etc.) before mirroring on Flutter.