Files
SpotiFLAC-Mobile/lib/screens/playlist_screen.dart
T

433 lines
17 KiB
Dart

import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:palette_generator/palette_generator.dart';
import 'package:spotiflac_android/l10n/l10n.dart';
import 'package:spotiflac_android/models/track.dart';
import 'package:spotiflac_android/models/download_item.dart';
import 'package:spotiflac_android/providers/download_queue_provider.dart';
import 'package:spotiflac_android/providers/settings_provider.dart';
import 'package:spotiflac_android/widgets/download_service_picker.dart';
/// Playlist detail screen with Material Expressive 3 design
class PlaylistScreen extends ConsumerStatefulWidget {
final String playlistName;
final String? coverUrl;
final List<Track> tracks;
const PlaylistScreen({
super.key,
required this.playlistName,
this.coverUrl,
required this.tracks,
});
@override
ConsumerState<PlaylistScreen> createState() => _PlaylistScreenState();
}
class _PlaylistScreenState extends ConsumerState<PlaylistScreen> {
Color? _dominantColor;
bool _showTitleInAppBar = false;
final ScrollController _scrollController = ScrollController();
@override
void initState() {
super.initState();
_scrollController.addListener(_onScroll);
_extractDominantColor();
}
@override
void dispose() {
_scrollController.removeListener(_onScroll);
_scrollController.dispose();
super.dispose();
}
void _onScroll() {
final shouldShow = _scrollController.offset > 280;
if (shouldShow != _showTitleInAppBar) {
setState(() => _showTitleInAppBar = shouldShow);
}
}
Future<void> _extractDominantColor() async {
if (widget.coverUrl == null) return;
try {
final paletteGenerator = await PaletteGenerator.fromImageProvider(
CachedNetworkImageProvider(widget.coverUrl!),
maximumColorCount: 16,
);
if (mounted) {
setState(() {
_dominantColor = paletteGenerator.dominantColor?.color ??
paletteGenerator.vibrantColor?.color ??
paletteGenerator.mutedColor?.color;
});
}
} catch (_) {
// Ignore palette extraction errors
}
}
@override
Widget build(BuildContext context) {
final colorScheme = Theme.of(context).colorScheme;
return Scaffold(
body: CustomScrollView(
controller: _scrollController,
slivers: [
_buildAppBar(context, colorScheme),
_buildInfoCard(context, colorScheme),
_buildTrackListHeader(context, colorScheme),
_buildTrackList(context, colorScheme),
const SliverToBoxAdapter(child: SizedBox(height: 32)),
],
),
);
}
Widget _buildAppBar(BuildContext context, ColorScheme colorScheme) {
final screenWidth = MediaQuery.of(context).size.width;
final coverSize = screenWidth * 0.5; // 50% of screen width
final bgColor = _dominantColor ?? colorScheme.surface;
return SliverAppBar(
expandedHeight: 320,
pinned: true,
stretch: true,
backgroundColor: colorScheme.surface, // Use theme color for collapsed state
surfaceTintColor: Colors.transparent,
title: AnimatedOpacity(
duration: const Duration(milliseconds: 200),
opacity: _showTitleInAppBar ? 1.0 : 0.0,
child: Text(
widget.playlistName,
style: TextStyle(
color: colorScheme.onSurface,
fontWeight: FontWeight.w600,
fontSize: 16,
),
maxLines: 1,
overflow: TextOverflow.ellipsis,
),
),
flexibleSpace: LayoutBuilder(
builder: (context, constraints) {
final collapseRatio = (constraints.maxHeight - kToolbarHeight) / (320 - kToolbarHeight);
final showContent = collapseRatio > 0.3;
return FlexibleSpaceBar(
collapseMode: CollapseMode.none,
background: Stack(
fit: StackFit.expand,
children: [
// Background with dominant color
AnimatedContainer(
duration: const Duration(milliseconds: 500),
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
colors: [
bgColor,
bgColor.withValues(alpha: 0.8),
colorScheme.surface,
],
stops: const [0.0, 0.6, 1.0],
),
),
),
// Cover image centered - fade out when collapsing
AnimatedOpacity(
duration: const Duration(milliseconds: 150),
opacity: showContent ? 1.0 : 0.0,
child: Center(
child: Padding(
padding: const EdgeInsets.only(top: 60),
child: Container(
width: coverSize,
height: coverSize,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(20),
boxShadow: [
BoxShadow(
color: Colors.black.withValues(alpha: 0.4),
blurRadius: 30,
offset: const Offset(0, 15),
),
],
),
child: ClipRRect(
borderRadius: BorderRadius.circular(20),
child: widget.coverUrl != null
? CachedNetworkImage(
imageUrl: widget.coverUrl!,
fit: BoxFit.cover,
memCacheWidth: (coverSize * 2).toInt(),
)
: Container(
color: colorScheme.surfaceContainerHighest,
child: Icon(Icons.playlist_play, size: 64, color: colorScheme.onSurfaceVariant),
),
),
),
),
),
),
],
),
stretchModes: const [StretchMode.zoomBackground, StretchMode.blurBackground],
);
},
),
leading: IconButton(
icon: Container(
padding: const EdgeInsets.all(8),
decoration: BoxDecoration(
color: colorScheme.surface.withValues(alpha: 0.8),
shape: BoxShape.circle,
),
child: Icon(Icons.arrow_back, color: colorScheme.onSurface),
),
onPressed: () => Navigator.pop(context),
),
);
}
Widget _buildInfoCard(BuildContext context, ColorScheme colorScheme) {
return SliverToBoxAdapter(
child: Padding(
padding: const EdgeInsets.all(16),
child: Card(
elevation: 0,
color: colorScheme.surfaceContainerLow,
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
child: Padding(
padding: const EdgeInsets.all(20),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(widget.playlistName, style: Theme.of(context).textTheme.headlineSmall?.copyWith(fontWeight: FontWeight.bold, color: colorScheme.onSurface)),
const SizedBox(height: 8),
Container(
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
decoration: BoxDecoration(color: colorScheme.tertiaryContainer, borderRadius: BorderRadius.circular(20)),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Icon(Icons.playlist_play, size: 14, color: colorScheme.onTertiaryContainer),
const SizedBox(width: 4),
Text(context.l10n.tracksCount(widget.tracks.length), style: TextStyle(color: colorScheme.onTertiaryContainer, fontWeight: FontWeight.w600, fontSize: 12)),
],
),
),
const SizedBox(height: 16),
FilledButton.icon(
onPressed: () => _downloadAll(context),
icon: const Icon(Icons.download),
label: Text(context.l10n.downloadAllCount(widget.tracks.length)),
style: FilledButton.styleFrom(minimumSize: const Size.fromHeight(52), shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16))),
),
],
),
),
),
),
);
}
Widget _buildTrackListHeader(BuildContext context, ColorScheme colorScheme) {
return SliverToBoxAdapter(
child: Padding(
padding: const EdgeInsets.fromLTRB(20, 8, 20, 8),
child: Row(
children: [
Icon(Icons.queue_music, size: 20, color: colorScheme.primary),
const SizedBox(width: 8),
Text(context.l10n.tracksHeader, style: Theme.of(context).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.w600, color: colorScheme.onSurface)),
],
),
),
);
}
Widget _buildTrackList(BuildContext context, ColorScheme colorScheme) {
return SliverList(
delegate: SliverChildBuilderDelegate(
(context, index) {
final track = widget.tracks[index];
return KeyedSubtree(
key: ValueKey(track.id),
child: _PlaylistTrackItem(
track: track,
onDownload: () => _downloadTrack(context, track),
),
);
},
childCount: widget.tracks.length,
),
);
}
void _downloadTrack(BuildContext context, Track track) {
final settings = ref.read(settingsProvider);
if (settings.askQualityBeforeDownload) {
DownloadServicePicker.show(
context,
trackName: track.name,
artistName: track.artistName,
coverUrl: track.coverUrl,
onSelect: (quality, service) {
ref.read(downloadQueueProvider.notifier).addToQueue(track, service, qualityOverride: quality);
ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedToQueue(track.name))));
},
);
} else {
ref.read(downloadQueueProvider.notifier).addToQueue(track, settings.defaultService);
ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedToQueue(track.name))));
}
}
void _downloadAll(BuildContext context) {
if (widget.tracks.isEmpty) return;
final settings = ref.read(settingsProvider);
if (settings.askQualityBeforeDownload) {
DownloadServicePicker.show(
context,
trackName: '${widget.tracks.length} tracks',
artistName: widget.playlistName,
onSelect: (quality, service) {
ref.read(downloadQueueProvider.notifier).addMultipleToQueue(widget.tracks, service, qualityOverride: quality);
ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedTracksToQueue(widget.tracks.length))));
},
);
} else {
ref.read(downloadQueueProvider.notifier).addMultipleToQueue(widget.tracks, settings.defaultService);
ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedTracksToQueue(widget.tracks.length))));
}
}
}
/// Separate Consumer widget for each track - only rebuilds when this specific track's status changes
class _PlaylistTrackItem extends ConsumerWidget {
final Track track;
final VoidCallback onDownload;
const _PlaylistTrackItem({required this.track, required this.onDownload});
@override
Widget build(BuildContext context, WidgetRef ref) {
final colorScheme = Theme.of(context).colorScheme;
final queueItem = ref.watch(downloadQueueProvider.select((state) {
return state.items.where((item) => item.track.id == track.id).firstOrNull;
}));
final isInHistory = ref.watch(downloadHistoryProvider.select((state) {
return state.isDownloaded(track.id);
}));
final isQueued = queueItem != null;
final isDownloading = queueItem?.status == DownloadStatus.downloading;
final isFinalizing = queueItem?.status == DownloadStatus.finalizing;
final isCompleted = queueItem?.status == DownloadStatus.completed;
final progress = queueItem?.progress ?? 0.0;
final showAsDownloaded = isCompleted || (!isQueued && isInHistory);
return Padding(
padding: const EdgeInsets.symmetric(horizontal: 8),
child: Card(
elevation: 0,
color: Colors.transparent,
margin: const EdgeInsets.symmetric(vertical: 2),
child: ListTile(
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
leading: track.coverUrl != null
? ClipRRect(borderRadius: BorderRadius.circular(8), child: CachedNetworkImage(imageUrl: track.coverUrl!, width: 48, height: 48, fit: BoxFit.cover, memCacheWidth: 96))
: Container(width: 48, height: 48, decoration: BoxDecoration(color: colorScheme.surfaceContainerHighest, borderRadius: BorderRadius.circular(8)), child: Icon(Icons.music_note, color: colorScheme.onSurfaceVariant)),
title: Text(track.name, maxLines: 1, overflow: TextOverflow.ellipsis, style: Theme.of(context).textTheme.bodyLarge?.copyWith(fontWeight: FontWeight.w500)),
subtitle: Text(track.artistName, maxLines: 1, overflow: TextOverflow.ellipsis, style: TextStyle(color: colorScheme.onSurfaceVariant)),
trailing: _buildDownloadButton(context, ref, colorScheme, isQueued: isQueued, isDownloading: isDownloading, isFinalizing: isFinalizing, showAsDownloaded: showAsDownloaded, isInHistory: isInHistory, progress: progress),
onTap: () => _handleTap(context, ref, isQueued: isQueued, isInHistory: isInHistory),
),
),
);
}
void _handleTap(BuildContext context, WidgetRef ref, {required bool isQueued, required bool isInHistory}) async {
if (isQueued) return;
if (isInHistory) {
final historyItem = ref.read(downloadHistoryProvider.notifier).getBySpotifyId(track.id);
if (historyItem != null) {
final fileExists = await File(historyItem.filePath).exists();
if (fileExists) {
if (context.mounted) {
ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAlreadyDownloaded(track.name))));
}
return;
} else {
ref.read(downloadHistoryProvider.notifier).removeBySpotifyId(track.id);
}
}
}
onDownload();
}
Widget _buildDownloadButton(BuildContext context, WidgetRef ref, ColorScheme colorScheme, {
required bool isQueued,
required bool isDownloading,
required bool isFinalizing,
required bool showAsDownloaded,
required bool isInHistory,
required double progress,
}) {
const double size = 44.0;
const double iconSize = 20.0;
if (showAsDownloaded) {
return GestureDetector(
onTap: () => _handleTap(context, ref, isQueued: isQueued, isInHistory: isInHistory),
child: Container(width: size, height: size, decoration: BoxDecoration(color: colorScheme.primaryContainer, shape: BoxShape.circle), child: Icon(Icons.check, color: colorScheme.onPrimaryContainer, size: iconSize)),
);
} else if (isFinalizing) {
return SizedBox(
width: size,
height: size,
child: Stack(
alignment: Alignment.center,
children: [
CircularProgressIndicator(strokeWidth: 3, color: colorScheme.tertiary, backgroundColor: colorScheme.surfaceContainerHighest),
Icon(Icons.edit_note, color: colorScheme.tertiary, size: 16),
],
),
);
} else if (isDownloading) {
return SizedBox(
width: size,
height: size,
child: Stack(
alignment: Alignment.center,
children: [
CircularProgressIndicator(value: progress > 0 ? progress : null, strokeWidth: 3, color: colorScheme.primary, backgroundColor: colorScheme.surfaceContainerHighest),
if (progress > 0) Text('${(progress * 100).toInt()}', style: TextStyle(fontSize: 10, fontWeight: FontWeight.bold, color: colorScheme.primary)),
],
),
);
} else if (isQueued) {
return Container(width: size, height: size, decoration: BoxDecoration(color: colorScheme.surfaceContainerHighest, shape: BoxShape.circle), child: Icon(Icons.hourglass_empty, color: colorScheme.onSurfaceVariant, size: iconSize));
} else {
return GestureDetector(
onTap: onDownload,
child: Container(width: size, height: size, decoration: BoxDecoration(color: colorScheme.secondaryContainer, shape: BoxShape.circle), child: Icon(Icons.download, color: colorScheme.onSecondaryContainer, size: iconSize)),
);
}
}
}