Files
plezy/lib/screens/livetv/live_tv_screen.dart
T

752 lines
27 KiB
Dart

import 'dart:async';
import '../../media/ids.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:material_symbols_icons/symbols.dart';
import 'package:provider/provider.dart';
import '../../focus/focusable_action_bar.dart';
import '../../focus/focusable_button.dart';
import '../../i18n/strings.g.dart';
import '../../media/live_tv_support.dart';
import '../../media/media_server_client.dart';
import '../../models/livetv_channel.dart';
import '../../models/livetv_dvr.dart';
import '../../mixins/refreshable.dart';
import '../../mixins/tab_navigation_mixin.dart';
import '../../providers/multi_server_provider.dart';
import '../../services/settings_service.dart';
import '../../widgets/settings_builder.dart';
import '../../utils/app_logger.dart';
import '../../utils/desktop_window_padding.dart';
import '../../utils/platform_detector.dart';
import '../../utils/serial_future_queue.dart';
import '../../utils/snackbar_helper.dart';
import '../../widgets/app_icon.dart';
import '../../widgets/focusable_tab_chip.dart';
import '../../widgets/overlay_sheet.dart';
import 'reorder_favorites_sheet.dart';
import 'tabs/guide_tab.dart';
import 'tabs/recordings_tab.dart';
import 'tabs/whats_on_tab.dart';
enum LiveTvTab { guide, whatsOn, recordings }
class LiveTvScreen extends StatefulWidget {
const LiveTvScreen({super.key});
@override
State<LiveTvScreen> createState() => _LiveTvScreenState();
}
class _LiveTvScreenState extends State<LiveTvScreen>
with TickerProviderStateMixin, TabNavigationMixin
implements FocusableTab {
final _guideTabFocusNode = FocusNode(debugLabel: 'tab_chip_guide');
final _whatsOnTabFocusNode = FocusNode(debugLabel: 'tab_chip_whats_on');
final _recordingsTabFocusNode = FocusNode(debugLabel: 'tab_chip_recordings');
final _guideTabKey = GlobalKey<GuideTabState>();
final _whatsOnTabKey = GlobalKey<WhatsOnTabState>();
final _recordingsTabKey = GlobalKey<RecordingsTabState>();
/// Visible tabs in the current session. Recordings tab is included only
/// when at least one Live TV server has `liveTvDvr` capability.
List<LiveTvTab> _visibleTabs = [LiveTvTab.guide, LiveTvTab.whatsOn];
// App bar action bar
final _actionBarKey = GlobalKey<FocusableActionBarState>();
List<LiveTvChannel> _channels = [];
bool _isLoading = true;
String? _error;
// Favorites
bool _showFavoritesOnly = false;
Set<String> _favoriteKeys = {};
List<FavoriteChannel> _favoriteChannels = [];
/// Source URI per Live TV server/DVR, built from machineIdentifier + EPG provider identifier.
final Map<String, String> _favoriteSourceByLiveServer = {};
final Map<String, String> _favoriteSourceByChannel = {};
final Map<String, String> _favoriteStoreByLiveServer = {};
final Map<String, String> _favoriteStoreByChannel = {};
final Map<String, String> _favoriteStoreBySource = {};
final Map<String, FavoriteChannelPersistenceMode> _favoriteModeByStore = {};
Future<void>? _channelsLoadFuture;
int _favoritesLoadGeneration = 0;
Future<void>? _favoritesLoadFuture;
final SerialFutureQueue _favoritesMutationQueue = SerialFutureQueue();
bool _favoritesLoaded = false;
List<LiveTvChannel> get _filteredChannels => filterLiveTvChannelsForFavorites(
channels: _channels,
favoritesOnly: _showFavoritesOnly,
favorites: _favoriteChannels,
sourceForChannel: _sourceForChannel,
);
String _liveServerScopeKey(LiveTvServerInfo serverInfo) => '${serverInfo.serverId}\u0000${serverInfo.dvrKey}';
String _sourceForChannel(LiveTvChannel channel) {
return channel.favoriteSource ?? _favoriteSourceByChannel[liveTvChannelScopeKey(channel)] ?? '';
}
String _favoriteKeyForChannel(LiveTvChannel channel) => favoriteChannelKey(_sourceForChannel(channel), channel.key);
bool _isFavoriteChannel(LiveTvChannel channel) => _favoriteKeys.contains(_favoriteKeyForChannel(channel));
void _refreshFavoriteKeys() {
_favoriteKeys = _favoriteChannels.map((f) => f.stableKey).toSet();
}
@override
List<FocusNode> get tabChipFocusNodes => [for (final tab in _visibleTabs) _focusNodeForTab(tab)];
FocusNode _focusNodeForTab(LiveTvTab tab) => switch (tab) {
LiveTvTab.guide => _guideTabFocusNode,
LiveTvTab.whatsOn => _whatsOnTabFocusNode,
LiveTvTab.recordings => _recordingsTabFocusNode,
};
@override
void initState() {
super.initState();
suppressAutoFocus = true;
_showFavoritesOnly = context.settingsRead(SettingsService.liveTvDefaultFavorites);
initTabNavigation();
_loadChannels();
}
@override
void dispose() {
_guideTabFocusNode.dispose();
_whatsOnTabFocusNode.dispose();
_recordingsTabFocusNode.dispose();
disposeTabNavigation();
super.dispose();
}
@override
void onTabChanged() {
if (!tabController.indexIsChanging) {
super.onTabChanged();
// Pause/resume timers based on active tab
if (tabController.index >= _visibleTabs.length) return;
switch (_visibleTabs[tabController.index]) {
case LiveTvTab.guide:
_whatsOnTabKey.currentState?.pauseRefresh();
_recordingsTabKey.currentState?.pauseRefresh();
_guideTabKey.currentState?.resumeRefresh();
case LiveTvTab.whatsOn:
_guideTabKey.currentState?.pauseRefresh();
_recordingsTabKey.currentState?.pauseRefresh();
_whatsOnTabKey.currentState?.resumeRefresh();
case LiveTvTab.recordings:
_guideTabKey.currentState?.pauseRefresh();
_whatsOnTabKey.currentState?.pauseRefresh();
_recordingsTabKey.currentState?.resumeRefresh();
}
}
}
LiveTvTab? get _currentTab {
if (tabController.index < 0 || tabController.index >= _visibleTabs.length) return null;
return _visibleTabs[tabController.index];
}
/// Tab-aware refresh handler bound to the AppBar refresh button.
/// - Guide / What's On: server-side `reloadGuide` per DVR-capable client +
/// client-side channel re-fetch.
/// - Recordings: re-fetches scheduled recordings + rules.
Future<void> _onRefresh() async {
if (_currentTab == LiveTvTab.recordings) {
await _recordingsTabKey.currentState?.reload();
return;
}
await _serverReloadGuide();
await _loadChannels();
}
Future<void> _serverReloadGuide() async {
final multiServer = context.read<MultiServerProvider>();
final futures = <Future<void>>[];
for (final serverInfo in multiServer.liveTvServers) {
final client = multiServer.getClientForServer(ServerId(serverInfo.serverId));
if (client == null || client.liveTvDvr == null) continue;
futures.add(_reloadGuideSafe(client, serverInfo.dvrKey));
}
if (futures.isEmpty) return;
await Future.wait(futures);
if (!mounted) return;
showSnackBar(context, t.liveTv.guideReloadRequested);
}
Future<void> _reloadGuideSafe(MediaServerClient client, String dvrId) async {
try {
final dvr = client.liveTvDvr;
if (dvr == null) return;
await dvr.reloadGuide(dvrId);
} catch (e) {
// 403 (admin only) and transient errors are non-fatal — caller still
// re-fetches client-side channels.
appLogger.d('Reload guide failed for DVR $dvrId: $e');
}
}
Future<void> _processRecordingRules() async {
final multiServer = context.read<MultiServerProvider>();
final futures = <Future<void>>[];
for (final serverInfo in multiServer.liveTvServers) {
final client = multiServer.getClientForServer(ServerId(serverInfo.serverId));
if (client == null || client.liveTvDvr == null) continue;
futures.add(_processRulesSafe(client));
}
if (futures.isEmpty) return;
await Future.wait(futures);
if (!mounted) return;
showSnackBar(context, t.liveTv.rulesProcessRequested);
await _recordingsTabKey.currentState?.reload();
}
Future<void> _processRulesSafe(MediaServerClient client) async {
try {
final dvr = client.liveTvDvr;
if (dvr == null) return;
await dvr.processRecordingRules();
} catch (e) {
appLogger.d('processRecordingRules failed: $e');
}
}
/// Recompute visible tabs from the current MultiServerProvider state.
/// Re-inits the tab controller when the visible set changes (matches the
/// libraries-screen pattern at libraries_screen.dart:365).
void _refreshVisibleTabs(MultiServerProvider multiServer) {
final hasDvr = multiServer.liveTvServers.any((s) {
final c = multiServer.getClientForServer(ServerId(s.serverId));
return c?.liveTvDvr != null;
});
final newTabs = [LiveTvTab.guide, LiveTvTab.whatsOn, if (hasDvr) LiveTvTab.recordings];
if (listEquals(_visibleTabs, newTabs)) return;
final currentTab = tabController.index < _visibleTabs.length ? _visibleTabs[tabController.index] : null;
disposeTabNavigation();
_visibleTabs = newTabs;
initTabNavigation();
if (currentTab != null) {
final newIndex = newTabs.indexOf(currentTab);
if (newIndex >= 0) tabController.index = newIndex;
}
}
/// Extracts enabled channel keys from DVR mappings, returning null if no DVR has mapping data.
Set<String>? _extractEnabledChannelKeys(List<LiveTvDvr> dvrs) {
final enabledKeys = <String>{};
bool hasMappings = false;
for (final dvr in dvrs) {
if (dvr.channelMappings.isEmpty) continue;
hasMappings = true;
for (final m in dvr.channelMappings) {
if (m.enabled == true && m.channelKey != null) {
enabledKeys.add(m.channelKey!);
}
}
}
return hasMappings ? enabledKeys : null;
}
Set<String>? _extractEnabledChannelKeysForServerInfo(LiveTvServerInfo serverInfo) {
final matching = serverInfo.dvrs.where((dvr) => dvr.key == serverInfo.dvrKey).toList();
return _extractEnabledChannelKeys(matching.isNotEmpty ? matching : serverInfo.dvrs);
}
String? _sourceTitleForServerInfo(LiveTvServerInfo serverInfo) {
for (final dvr in serverInfo.dvrs) {
if (dvr.key == serverInfo.dvrKey) {
return _nonEmpty(dvr.lineupTitle) ?? _nonEmpty(dvr.lineupURL) ?? _nonEmpty(dvr.lineup);
}
}
return _nonEmpty(serverInfo.lineup);
}
String? _nonEmpty(String? value) {
final trimmed = value?.trim();
return trimmed == null || trimmed.isEmpty ? null : trimmed;
}
Future<void> _loadChannels() {
final inFlight = _channelsLoadFuture;
if (inFlight != null) return inFlight;
late final Future<void> load;
load = _loadChannelsOnce().whenComplete(() {
if (identical(_channelsLoadFuture, load)) _channelsLoadFuture = null;
});
_channelsLoadFuture = load;
return load;
}
Future<void> _loadChannelsOnce() async {
if (!mounted) return;
setState(() {
_isLoading = true;
_error = null;
});
try {
final multiServer = context.read<MultiServerProvider>();
final liveTvServers = multiServer.liveTvServers;
if (liveTvServers.isEmpty) {
setState(() {
_isLoading = false;
_error = t.liveTv.noDvr;
});
return;
}
final allChannels = <LiveTvChannel>[];
final seenChannels = <String>{};
final favoriteSourceByLiveServer = <String, String>{};
final favoriteSourceByChannel = <String, String>{};
final favoriteStoreByLiveServer = <String, String>{};
final favoriteStoreByChannel = <String, String>{};
final favoriteStoreBySource = <String, String>{};
final favoriteModeByStore = <String, FavoriteChannelPersistenceMode>{};
appLogger.d(
'Live TV DVRs: ${liveTvServers.map((s) => '${s.serverId}/${s.dvrKey} lineup=${s.lineup}').join(', ')}',
);
// Build a set of enabled channel keys per Live TV DVR from cached DVR data.
final enabledKeysByLiveServer = <String, Set<String>>{};
for (final serverInfo in liveTvServers) {
final enabledKeys = _extractEnabledChannelKeysForServerInfo(serverInfo);
if (enabledKeys != null) {
enabledKeysByLiveServer[_liveServerScopeKey(serverInfo)] = enabledKeys;
}
}
for (final serverInfo in liveTvServers) {
try {
final genericClient = multiServer.getClientForServer(ServerId(serverInfo.serverId));
if (genericClient == null) continue;
final liveTv = genericClient.liveTv;
final source = await liveTv.buildFavoriteChannelSource(lineup: serverInfo.lineup);
final sourceTitle = _sourceTitleForServerInfo(serverInfo);
final storeKey = liveTv.favoriteStoreKey;
final liveServerKey = _liveServerScopeKey(serverInfo);
favoriteSourceByLiveServer[liveServerKey] = source;
favoriteStoreByLiveServer[liveServerKey] = storeKey;
favoriteStoreBySource[source] = storeKey;
favoriteModeByStore[storeKey] = liveTv.favoritePersistenceMode;
final channels = await genericClient.liveTv.fetchChannels(lineup: serverInfo.lineup);
// Plex's DVR exposes a separate enabled-channel mapping; Jellyfin
// already filters to subscribed channels server-side.
final enabledKeys = enabledKeysByLiveServer[liveServerKey];
appLogger.d(
'Channels from ${serverInfo.dvrKey}: ${channels.length} channels (${enabledKeys?.length ?? 'all'} enabled)',
);
for (final channel in channels) {
if (enabledKeys != null && !enabledKeys.contains(channel.key)) continue;
final scopedChannel = channel.copyWith(
liveDvrKey: serverInfo.dvrKey,
liveTvSourceTitle: sourceTitle,
favoriteSource: source,
favoriteStoreKey: storeKey,
);
final dedupKey = liveTvChannelScopeKey(scopedChannel);
if (seenChannels.add(dedupKey)) {
final scopeKey = liveTvChannelScopeKey(scopedChannel);
favoriteSourceByChannel[scopeKey] = source;
favoriteStoreByChannel[scopeKey] = storeKey;
allChannels.add(scopedChannel);
}
}
} catch (e) {
appLogger.e('Failed to load channels from server ${serverInfo.serverId}', error: e);
}
}
allChannels.sort((a, b) {
final aNum = double.tryParse(a.number ?? '') ?? 999999;
final bNum = double.tryParse(b.number ?? '') ?? 999999;
return aNum.compareTo(bNum);
});
if (!mounted) return;
appLogger.d('Live TV: loaded ${allChannels.length} channels');
setState(() {
_channels = allChannels;
_favoriteSourceByLiveServer
..clear()
..addAll(favoriteSourceByLiveServer);
_favoriteSourceByChannel
..clear()
..addAll(favoriteSourceByChannel);
_favoriteStoreByLiveServer
..clear()
..addAll(favoriteStoreByLiveServer);
_favoriteStoreByChannel
..clear()
..addAll(favoriteStoreByChannel);
_favoriteStoreBySource
..clear()
..addAll(favoriteStoreBySource);
_favoriteModeByStore
..clear()
..addAll(favoriteModeByStore);
_isLoading = false;
});
_refreshVisibleTabs(multiServer);
// Load favorites by backend store: Plex is cloud/account-scoped, Jellyfin per server.
final favoritesLoad = _loadFavorites(multiServer);
_favoritesLoadFuture = favoritesLoad;
unawaited(
favoritesLoad.whenComplete(() {
if (identical(_favoritesLoadFuture, favoritesLoad)) {
_favoritesLoadFuture = null;
}
}),
);
if (allChannels.isNotEmpty && PlatformDetector.shouldUseSideNavigation(context)) {
WidgetsBinding.instance.addPostFrameCallback((_) {
if (mounted) _focusCurrentTab();
});
}
} catch (e) {
appLogger.e('Failed to load Live TV channels', error: e);
if (mounted) {
setState(() {
_isLoading = false;
_error = e.toString();
});
}
}
}
Future<void> _loadFavorites(MultiServerProvider multiServer) async {
final loadGeneration = ++_favoritesLoadGeneration;
_favoritesLoaded = false;
try {
final sourceByLiveServer = Map<String, String>.of(_favoriteSourceByLiveServer);
final storeByLiveServer = Map<String, String>.of(_favoriteStoreByLiveServer);
final storeBySource = Map<String, String>.of(_favoriteStoreBySource);
final modeByStore = Map<String, FavoriteChannelPersistenceMode>.of(_favoriteModeByStore);
final merged = <FavoriteChannel>[];
final fetchedStores = <String>{};
final seenFavorites = <String>{};
for (final serverInfo in multiServer.liveTvServers) {
final client = multiServer.getClientForServer(ServerId(serverInfo.serverId));
if (client == null) continue;
final liveTv = client.liveTv;
final source = await liveTv.buildFavoriteChannelSource(lineup: serverInfo.lineup);
final storeKey = liveTv.favoriteStoreKey;
final liveServerKey = _liveServerScopeKey(serverInfo);
sourceByLiveServer[liveServerKey] = source;
storeByLiveServer[liveServerKey] = storeKey;
storeBySource[source] = storeKey;
modeByStore[storeKey] = liveTv.favoritePersistenceMode;
if (!fetchedStores.add(storeKey)) continue;
final serverFavorites = await liveTv.fetchFavoriteChannels();
for (final favorite in serverFavorites) {
storeBySource[favorite.source] = storeKey;
if (seenFavorites.add(favorite.stableKey)) merged.add(favorite);
}
}
if (!mounted || loadGeneration != _favoritesLoadGeneration) return;
setState(() {
_favoriteSourceByLiveServer
..clear()
..addAll(sourceByLiveServer);
_favoriteStoreByLiveServer
..clear()
..addAll(storeByLiveServer);
_favoriteStoreBySource
..clear()
..addAll(storeBySource);
_favoriteModeByStore
..clear()
..addAll(modeByStore);
_favoriteChannels = merged;
_refreshFavoriteKeys();
});
_favoritesLoaded = true;
appLogger.d('Live TV: loaded ${merged.length} favorite channels');
} catch (e) {
appLogger.e('Failed to load favorite channels', error: e);
}
}
void _toggleFavoritesFilter() {
setState(() {
_showFavoritesOnly = !_showFavoritesOnly;
});
}
void _toggleFavorite(LiveTvChannel channel) {
_enqueueFavoriteMutation(() {
final source = _sourceForChannel(channel);
final favoriteKey = favoriteChannelKey(source, channel.key);
final scopeKey = liveTvChannelScopeKey(channel);
final storeKey = channel.favoriteStoreKey ?? _favoriteStoreByChannel[scopeKey];
if (storeKey != null) _favoriteStoreBySource[source] = storeKey;
setState(() {
if (_favoriteKeys.contains(favoriteKey)) {
_favoriteChannels = _favoriteChannels.where((f) => f.id != channel.key || f.source != source).toList();
} else {
_favoriteChannels = [..._favoriteChannels, FavoriteChannel.fromLiveTvChannel(channel, source)];
}
_refreshFavoriteKeys();
});
});
}
void _enqueueFavoriteMutation(VoidCallback mutation) {
final pendingLoad = _favoritesLoadFuture;
unawaited(
_favoritesMutationQueue
.run(() async {
if (pendingLoad != null) await pendingLoad;
if (!mounted) return;
if (!_favoritesLoaded) {
showErrorSnackBar(context, t.liveTv.favoritesLoadFailed);
return;
}
mutation();
await _persistFavorites();
})
.catchError((Object error, StackTrace stackTrace) {
appLogger.e('Failed to mutate favorite channels', error: error, stackTrace: stackTrace);
}),
);
}
void _showReorderFavorites() {
final channelMap = {for (final c in _channels) _favoriteKeyForChannel(c): c};
OverlaySheetController.showAdaptive(
context,
isScrollControlled: true,
showDragHandle: true,
builder: (sheetContext) => ReorderFavoritesSheet(
favorites: List.from(_favoriteChannels),
channelMap: channelMap,
onReorder: (reordered) {
_enqueueFavoriteMutation(() {
setState(() {
_favoriteChannels = reordered;
_refreshFavoriteKeys();
});
});
},
onRemove: (removed) {
_enqueueFavoriteMutation(() {
setState(() {
_favoriteChannels = _favoriteChannels.where((f) => f.stableKey != removed.stableKey).toList();
_refreshFavoriteKeys();
});
});
},
),
);
}
Future<void> _persistFavorites() async {
final multiServer = context.read<MultiServerProvider>();
final byStore = <String, List<FavoriteChannel>>{};
for (final favorite in _favoriteChannels) {
final storeKey = _favoriteStoreBySource[favorite.source];
if (storeKey == null) continue;
byStore.putIfAbsent(storeKey, () => []).add(favorite);
}
final writtenStores = <String>{};
final writes = <Future<void>>[];
for (final serverInfo in multiServer.liveTvServers) {
final client = multiServer.getClientForServer(ServerId(serverInfo.serverId));
if (client == null) continue;
final liveServerKey = _liveServerScopeKey(serverInfo);
final storeKey = _favoriteStoreByLiveServer[liveServerKey];
if (storeKey == null || !writtenStores.add(storeKey)) continue;
final mode = _favoriteModeByStore[storeKey] ?? client.liveTv.favoritePersistenceMode;
final source = _favoriteSourceByLiveServer[liveServerKey];
if (source == null) continue;
final channels = switch (mode) {
FavoriteChannelPersistenceMode.sharedFullList => byStore[storeKey] ?? const <FavoriteChannel>[],
FavoriteChannelPersistenceMode.serverSlice =>
(byStore[storeKey] ?? const <FavoriteChannel>[]).where((favorite) => favorite.source == source).toList(),
};
writes.add(client.liveTv.setFavoriteChannels(channels));
}
await Future.wait(writes);
}
void _focusCurrentTab() {
if (tabController.index < _visibleTabs.length) {
switch (_visibleTabs[tabController.index]) {
case LiveTvTab.guide:
_guideTabKey.currentState?.focusContent();
case LiveTvTab.whatsOn:
_whatsOnTabKey.currentState?.focusFirstHub();
case LiveTvTab.recordings:
_recordingsTabKey.currentState?.focusContent();
}
}
setState(() {
suppressAutoFocus = false;
});
}
@override
void focusActiveTabIfReady() => _focusCurrentTab();
String _getTabLabel(LiveTvTab tab) {
return switch (tab) {
LiveTvTab.guide => t.liveTv.guide,
LiveTvTab.whatsOn => t.liveTv.whatsOn,
LiveTvTab.recordings => t.liveTv.recordings,
};
}
List<Widget> _buildTabChipItems() {
return [
for (int i = 0; i < _visibleTabs.length; i++) ...[
if (i > 0) const SizedBox(width: 8),
buildTabChip(
_getTabLabel(_visibleTabs[i]),
i,
onSelectWhenActive: _focusCurrentTab,
onNavigateDown: _focusCurrentTab,
onNavigateToActions: () => _actionBarKey.currentState?.requestFocusOnFirst(),
),
],
];
}
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
final useSideNav = PlatformDetector.shouldUseSideNavigation(context);
final isRecordings = _currentTab == LiveTvTab.recordings;
return Scaffold(
appBar: AppBar(
title: useSideNav ? TabChipStrip(children: _buildTabChipItems()) : Text(t.liveTv.title),
actions: DesktopAppBarHelper.buildAdjustedActions([
FocusableActionBar(
key: _actionBarKey,
onNavigateLeft: () => getTabChipFocusNode(tabCount - 1).requestFocus(),
onNavigateDown: _focusCurrentTab,
actions: [
if (!isRecordings)
FocusableAction(
icon: _showFavoritesOnly ? Symbols.star_rounded : Symbols.star_outline_rounded,
iconFill: _showFavoritesOnly ? 1.0 : 0.0,
tooltip: t.liveTv.favorites,
onPressed: _toggleFavoritesFilter,
),
if (!isRecordings && _showFavoritesOnly && _favoriteChannels.length > 1)
FocusableAction(
icon: Symbols.swap_vert_rounded,
tooltip: t.liveTv.reorderFavorites,
onPressed: _showReorderFavorites,
),
if (isRecordings)
FocusableAction(
icon: Symbols.bolt_rounded,
tooltip: t.liveTv.processRecordingRules,
onPressed: _processRecordingRules,
),
FocusableAction(
icon: Symbols.refresh_rounded,
tooltip: isRecordings ? t.common.refresh : t.liveTv.reloadGuide,
onPressed: _onRefresh,
),
],
),
]),
),
body: _buildLiveTvBody(theme, useSideNav),
);
}
Widget _buildTabContent(LiveTvTab tab, List<LiveTvChannel> guideChannels) {
return switch (tab) {
LiveTvTab.guide => GuideTab(
key: _guideTabKey,
channels: guideChannels,
isFavoriteChannel: _isFavoriteChannel,
onToggleFavorite: _toggleFavorite,
onNavigateUp: focusTabBar,
onBack: onTabBarBack,
),
LiveTvTab.whatsOn => WhatsOnTab(
key: _whatsOnTabKey,
channels: _channels,
onNavigateUp: focusTabBar,
onBack: onTabBarBack,
),
LiveTvTab.recordings => RecordingsTab(key: _recordingsTabKey, onNavigateUp: focusTabBar, onBack: onTabBarBack),
};
}
Widget _buildLiveTvBody(ThemeData theme, bool useSideNav) {
if (_isLoading) {
return const Center(child: CircularProgressIndicator());
}
if (_error != null) {
return Center(
child: Column(
mainAxisSize: .min,
children: [
AppIcon(Symbols.error_rounded, size: 48, color: theme.colorScheme.error),
const SizedBox(height: 16),
Text(_error!, style: theme.textTheme.bodyLarge),
const SizedBox(height: 16),
FocusableButton(
autofocus: true,
onPressed: _loadChannels,
useBackgroundFocus: true,
child: FilledButton.icon(
onPressed: _loadChannels,
icon: const AppIcon(Symbols.refresh_rounded),
label: Text(t.common.retry),
),
),
],
),
);
}
if (_channels.isEmpty && !_visibleTabs.contains(LiveTvTab.recordings)) {
return Center(child: Text(t.liveTv.noChannels));
}
final guideChannels = _filteredChannels;
return Column(
children: [
if (!useSideNav)
Container(
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
alignment: .centerLeft,
child: TabChipStrip(children: _buildTabChipItems()),
),
Expanded(
child: TabBarView(
controller: tabController,
children: [for (final tab in _visibleTabs) _buildTabContent(tab, guideChannels)],
),
),
],
);
}
}