Second slice of Playlists feature parity. PlaylistDetail route now
renders the real screen instead of the ComingSoon stub; Home's
Playlists row now shows actual PlaylistCards instead of the
placeholder header.
New:
- playlists/ui/PlaylistDetailScreen.kt — VM + UiState + Screen.
Header (cover + name + description + track count + Play / Shuffle
buttons) over a track list (numbered TrackRow with duration).
Unavailable tracks (trackId == null because the upstream library
row was removed) render at 0.4 alpha and don't accept taps, per
Flutter's `isAvailable` convention. Tap on a track plays the
playlist starting there via `PlayerController.setQueue(refs,
initialIndex, source = "playlist:$id")`. Shuffle reuses the same
path on a `shuffled()` copy — cheap for the page-sized list.
Modified:
- home/ui/HomeScreen.kt — HomeViewModel now also takes
PlaylistsRepository; calls refreshList() alongside refreshIndex()
on init. HomeSections gets a `playlists: List<PlaylistRef>` field
(factored into isAllEmpty). HomeSuccessContent shows a real
PlaylistsRow when non-empty (replacing the "Lands in Phase 7"
EmptySectionHeader). Tile tap navigates to PlaylistDetail.
Combine arity capped at 5 by kotlinx.coroutines, so the screen
splits into observeHomeSections() (the five HomeRepository flows)
chained against the PlaylistsRepository flow — avoids untyped
vararg-combine gymnastics across heterogeneous list types.
- nav/MinstrelNavGraph.kt — PlaylistDetail route swaps from
ComingSoon to `PlaylistDetailScreen(navController = navController)`.
The route id flows in via SavedStateHandle.toRoute() inside the
ViewModel rather than backStackEntry.toRoute(), so the composable
block is back to a one-liner.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen
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