Navidrome / Subsonic `getArtistInfo2` often returns a `largeImageUrl`
that 404s when the artist has no scraped image. The hook returned the
URL as-is, the FullscreenPlayer's `artistBgUrl || coverUrl` chain saw
a non-empty string and skipped the cover-art fallback, and FsPortrait
rendered an `<img>` whose `src` failed — leaving the browser's default
broken-image glyph in the middle of the screen.
Preflight the URL via an `Image()` probe and only expose it once it
actually loads; on error leave the hook's state empty so the cover-art
fallback in the caller takes effect.
* refactor(fullscreen-player): H5 — extract FsLyricsApple + FsLyricsRail + useWordLyricsSync
The two lyrics views become own files under components/fullscreenPlayer/.
Their identical word-sync imperative DOM-update useEffect (only differing in
the .fsa-/.fsr- class prefix) collapses into the shared useWordLyricsSync
hook with a classPrefix arg.
FullscreenPlayer.tsx: 911 → 613 LOC.
* refactor(fullscreen-player): H5 — extract FsArt + FsPortrait + FsSeekbar
The three visual subcomponents move into own files. formatTime moves into
utils/fullscreenPlayerHelpers.ts so FsSeekbar keeps using it.
FullscreenPlayer.tsx: 613 → 421 LOC.
* refactor(fullscreen-player): H5 — extract FsLyricsMenu + FsPlayBtn
The lyrics-settings popover and the isolated play/pause button move into
own files. FullscreenPlayer drops the now-unused lucide-react icons
(Play/Pause/Moon/Sunrise/Music) and the PlaybackDelayModal +
PlaybackScheduleBadge imports — both used only by FsPlayBtn now.
FullscreenPlayer.tsx: 421 → 304 LOC.
* refactor(fullscreen-player): H5 — extract useFsDynamicAccent + useFsArtistPortrait + useFsIdleFade
Pulls three state+effect islands out of FullscreenPlayer:
- useFsDynamicAccent owns the cover-blob fetch + extractCoverColors call
plus the module-level artKey → accent cache that makes same-album song
switches instant.
- useFsArtistPortrait fetches getArtistInfo().largeImageUrl for the right-
side portrait, returning '' until resolved (or when no artistId).
- useFsIdleFade flips isIdle true after 3 s of inactivity, exposes a
throttled mousemove handler, and binds Escape to the provided callback.
FullscreenPlayer.tsx: 304 → 228 LOC.
Frank Stellmacher