Third-party extensions (e.g. Spotify PKCE addons) need three things the current app does not fully provide:
Extension button results – The Go runtime returned { success, result: { message, open_auth_url, … } } while Flutter read message / open_auth_url only on the outer map, so OAuth buttons appeared to do nothing. InvokeAction now merges the extension’s return object onto the top-level JSON (arrays/non-objects still use result).
Flutter – extension_detail_page: unwrap nested result for compatibility, merge setting_updates into saved extension settings (for copyable OAuth URLs), and launchUrl when open_auth_url is set.
Mobile OAuth return – spotiflac://callback?code=…&state=<extension_id> was not handled on Android (manifest + MainActivity) or iOS (AppDelegate open URL + cold-start launchOptions). This wires SetExtensionAuthCodeByID + invokeExtensionAction(..., "completeSpotifyLogin") so PKCE extensions can finish login after the browser redirect.
Extension store HTTP – Add Cache-Control: no-cache on registry and extension package downloads to reduce stale CDN/proxy responses.
Testing: Install a metadata extension that uses PKCE; tap Connect; confirm browser opens, return via spotiflac://callback, and tokens complete without pasting the code manually.
extension InvokeAction JSON was nested under result while the Flutter settings UI only read the top level, so OAuth-related buttons never showed messages or opened the browser. This PR flattens that payload, merges optional setting_updates, launches open_auth_url, adds spotiflac://callback handling on Android and iOS, and sends no-cache on store HTTP fetches. Needed for extensions like SpoitiLists (Spotify Web API + PKCE).
- Defer extension VM initialization until first use with lockReadyVM() pattern to eliminate TOCTOU races and reduce startup overhead
- Add validateExtensionLoad() to catch JS errors at install time without keeping VM alive
- Teardown VM on extension disable to free resources; re-init lazily on re-enable
- Replace full orphan cleanup with incremental cursor-based pagination across launches
- Batch DB writes (upsertBatch, replaceAll) with transactions for atomicity
- Parse JSON natively on Kotlin side to avoid double-serialization over MethodChannel
- Add identity-based memoization caches for unified items and path match keys in queue tab
- Use ValueListenableBuilder for targeted embedded cover refreshes instead of full setState
- Extract shared widgets (_buildAlbumGridItemCore, _buildFilterButton, _navigateWithUnfocus)
- Use libraryCollectionsProvider selector and MediaQuery.paddingOf for fewer rebuilds
- Simplify supporter chip tiers and localize remaining hardcoded strings
Changes:
- Fix FFmpeg crash issues during M4A to MP3/Opus conversion
- Add format picker (MP3/Opus) when selecting Tidal Lossy 320kbps
- Fix Deezer album blank screen when opened from home
- LRC file generation now follows lyrics mode setting
- Version bump to 3.3.5 (build 70)
- Add Home Feed/Explore feature with extension capabilities system
- Add pull-to-refresh on home feed (replaces refresh button)
- Add gobackend.getLocalTime() API for accurate device timezone detection
- Add YT Music Quick Picks UI with swipeable vertical format
- Fix greeting time showing wrong time due to Goja getTimezoneOffset() returning 0
- Update spotify-web and ytmusic extensions to use getLocalTime()
- Add Turkish language support
- Update CHANGELOG for v3.2.0
- Add genre, label, copyright fields to ExtTrackMetadata and DownloadResponse
- Add utils.randomUserAgent() for extensions to get random User-Agent strings
- Fix VM race condition panic by adding mutex locks to all provider methods
- Fix Tidal release date fallback when req.ReleaseDate is empty
- Display genre, label, copyright in track metadata screen
- Store extended metadata in download history for persistence
- Add trackGenre, trackLabel, trackCopyright localization strings
- Add SettingTypeButton for action buttons in extension settings
- Add Action field to ExtensionSetting for JS function name
- Update extension detail page UI to render button settings
- Add InvokeAction method to execute button actions
- Support custom extension icons from registry (iconUrl field)
- Support both camelCase and snake_case in registry JSON
- Fix download file extension (.spotiflac-ext)
- New extensions start disabled by default
- Preserve enabled state on extension upgrade
- Add toggle to show/hide Store tab in Settings > Options
- Reorder tabs: Home, History, Store, Settings
- Save enabled state to settings store when extension is enabled/disabled
- Restore enabled state from settings store when extension is loaded
- Clear searchProvider setting when the extension is disabled
- Update search hint to check if extension is still enabled
- Add extension manager, manifest, runtime, providers, settings
- Add extension provider and UI pages (extensions, detail, priority)
- Add download service picker widget
- Add metadata provider priority page
- Add source field to Track model for extension tracking
- Add skipBuiltInFallback manifest option to skip built-in providers
- Update download queue to use source extension first
- Add extension upgrade support without data loss
