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plezy/lib/screens/livetv/live_tv_screen.dart
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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 '../../i18n/strings.g.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 '../../providers/settings_provider.dart';
import '../../utils/app_logger.dart';
import '../../utils/desktop_window_padding.dart';
import '../../utils/platform_detector.dart';
import '../../widgets/app_icon.dart';
import '../../widgets/overlay_sheet.dart';
import 'reorder_favorites_sheet.dart';
import 'tabs/guide_tab.dart';
import 'tabs/whats_on_tab.dart';
enum LiveTvTab { guide, whatsOn }
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 _guideTabKey = GlobalKey<GuideTabState>();
final _whatsOnTabKey = GlobalKey<WhatsOnTabState>();
// App bar action bar
final _actionBarKey = GlobalKey<FocusableActionBarState>();
List<LiveTvChannel> _channels = [];
bool _isLoading = true;
String? _error;
// Favorites
bool _showFavoritesOnly = false;
Set<String> _favoriteChannelIds = {};
List<FavoriteChannel> _favoriteChannels = [];
/// Source URI per server, built from machineIdentifier + EPG provider identifier.
final Map<String, String> _favoriteSourceByServer = {};
List<LiveTvChannel> get _filteredChannels {
if (!_showFavoritesOnly || _favoriteChannelIds.isEmpty) return _channels;
final channelMap = {for (final c in _channels) c.key: c};
return [
for (final fav in _favoriteChannels)
if (channelMap.containsKey(fav.id)) channelMap[fav.id]!,
];
}
@override
List<FocusNode> get tabChipFocusNodes => [_guideTabFocusNode, _whatsOnTabFocusNode];
@override
void initState() {
super.initState();
suppressAutoFocus = true;
_showFavoritesOnly = context.read<SettingsProvider>().liveTvDefaultFavorites;
initTabNavigation();
_loadChannels();
}
@override
void dispose() {
_guideTabFocusNode.dispose();
_whatsOnTabFocusNode.dispose();
disposeTabNavigation();
super.dispose();
}
@override
void onTabChanged() {
if (!tabController.indexIsChanging) {
super.onTabChanged();
// Pause/resume timers based on active tab
switch (LiveTvTab.values[tabController.index]) {
case LiveTvTab.guide:
_whatsOnTabKey.currentState?.pauseRefresh();
_guideTabKey.currentState?.resumeRefresh();
case LiveTvTab.whatsOn:
_guideTabKey.currentState?.pauseRefresh();
_whatsOnTabKey.currentState?.resumeRefresh();
}
}
}
/// 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;
}
Future<void> _loadChannels() 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>{};
appLogger.d(
'Live TV DVRs: ${liveTvServers.map((s) => '${s.serverId}/${s.dvrKey} lineup=${s.lineup}').join(', ')}',
);
// Build a set of enabled channel keys per server from cached DVR data
final enabledKeysByServer = <String, Set<String>>{};
final processedServers = <String>{};
for (final serverInfo in liveTvServers) {
if (!processedServers.add(serverInfo.serverId)) continue;
final enabledKeys = _extractEnabledChannelKeys(serverInfo.dvrs);
if (enabledKeys != null) {
enabledKeysByServer[serverInfo.serverId] = enabledKeys;
}
}
for (final serverInfo in liveTvServers) {
try {
final client = multiServer.getClientForServer(serverInfo.serverId);
if (client == null) continue;
final channels = await client.getEpgChannels(lineup: serverInfo.lineup);
final enabledKeys = enabledKeysByServer[serverInfo.serverId];
appLogger.d(
'Channels from DVR ${serverInfo.dvrKey}: ${channels.length} channels (${enabledKeys?.length ?? 'all'} enabled)',
);
for (final channel in channels) {
// Skip disabled channels if DVR has mapping data
if (enabledKeys != null && !enabledKeys.contains(channel.key)) continue;
final dedupKey = '${serverInfo.serverId}:${channel.key}';
if (seenChannels.add(dedupKey)) {
allChannels.add(channel);
}
}
} 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;
_isLoading = false;
});
// Load favorites from the first available server (favorites are cloud-synced)
_loadFavorites(multiServer);
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 {
try {
// Use the first available server's client to fetch favorites
for (final serverInfo in multiServer.liveTvServers) {
final client = multiServer.getClientForServer(serverInfo.serverId);
if (client == null) continue;
// Build and cache the source URI for this server
final source = await client.buildFavoriteChannelSource();
_favoriteSourceByServer[serverInfo.serverId] = source;
final favorites = await client.getFavoriteChannels();
if (!mounted) return;
setState(() {
_favoriteChannels = favorites;
_favoriteChannelIds = favorites.map((f) => f.id).toSet();
});
appLogger.d('Live TV: loaded ${favorites.length} favorite channels');
break; // Favorites are cloud-synced, only need to fetch once
}
} catch (e) {
appLogger.e('Failed to load favorite channels', error: e);
}
}
void _toggleFavoritesFilter() {
setState(() {
_showFavoritesOnly = !_showFavoritesOnly;
});
}
void _toggleFavorite(LiveTvChannel channel) {
final source = _favoriteSourceByServer[channel.serverId] ?? '';
setState(() {
if (_favoriteChannelIds.contains(channel.key)) {
_favoriteChannelIds = Set.from(_favoriteChannelIds)..remove(channel.key);
_favoriteChannels = _favoriteChannels.where((f) => f.id != channel.key).toList();
} else {
_favoriteChannelIds = Set.from(_favoriteChannelIds)..add(channel.key);
_favoriteChannels = [..._favoriteChannels, FavoriteChannel.fromLiveTvChannel(channel, source)];
}
});
_persistFavorites();
}
void _showReorderFavorites() {
final channelMap = {for (final c in _channels) c.key: c};
OverlaySheetController.showAdaptive(
context,
builder: (sheetContext) => ReorderFavoritesSheet(
favorites: List.from(_favoriteChannels),
channelMap: channelMap,
onReorder: (reordered) {
setState(() {
_favoriteChannels = reordered;
_favoriteChannelIds = reordered.map((f) => f.id).toSet();
});
_persistFavorites();
},
onRemove: (removed) {
setState(() {
_favoriteChannels = _favoriteChannels.where((f) => f.id != removed.id).toList();
_favoriteChannelIds = Set.from(_favoriteChannelIds)..remove(removed.id);
});
_persistFavorites();
},
),
);
}
void _persistFavorites() {
final multiServer = context.read<MultiServerProvider>();
for (final serverInfo in multiServer.liveTvServers) {
final client = multiServer.getClientForServer(serverInfo.serverId);
if (client != null) {
client.setFavoriteChannels(_favoriteChannels);
break;
}
}
}
void _focusCurrentTab() {
switch (LiveTvTab.values[tabController.index]) {
case LiveTvTab.guide:
_guideTabKey.currentState?.focusContent();
case LiveTvTab.whatsOn:
_whatsOnTabKey.currentState?.focusFirstHub();
}
setState(() {
suppressAutoFocus = false;
});
}
@override
void focusActiveTabIfReady() => _focusCurrentTab();
// ---------------------------------------------------------------------------
// Tab chips
// ---------------------------------------------------------------------------
String _getTabLabel(LiveTvTab tab) {
return switch (tab) {
LiveTvTab.guide => t.liveTv.guide,
LiveTvTab.whatsOn => t.liveTv.whatsOn,
};
}
// ---------------------------------------------------------------------------
// Build
// ---------------------------------------------------------------------------
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
final useSideNav = PlatformDetector.shouldUseSideNavigation(context);
return Scaffold(
appBar: AppBar(
title: useSideNav
? Row(
children: [
for (int i = 0; i < LiveTvTab.values.length; i++) ...[
if (i > 0) const SizedBox(width: 8),
buildTabChip(
_getTabLabel(LiveTvTab.values[i]),
i,
onSelectWhenActive: _focusCurrentTab,
onNavigateDown: _focusCurrentTab,
onNavigateRightFromLast: () => _actionBarKey.currentState?.requestFocusOnFirst(),
),
],
],
)
: Text(t.liveTv.title),
actions: DesktopAppBarHelper.buildAdjustedActions([
FocusableActionBar(
key: _actionBarKey,
onNavigateLeft: () => getTabChipFocusNode(tabCount - 1).requestFocus(),
onNavigateDown: _focusCurrentTab,
actions: [
FocusableAction(
icon: _showFavoritesOnly ? Symbols.star_rounded : Symbols.star_outline_rounded,
iconFill: _showFavoritesOnly ? 1.0 : 0.0,
tooltip: t.liveTv.favorites,
onPressed: _toggleFavoritesFilter,
),
if (_showFavoritesOnly && _favoriteChannels.length > 1)
FocusableAction(
icon: Symbols.swap_vert_rounded,
tooltip: t.liveTv.reorderFavorites,
onPressed: _showReorderFavorites,
),
FocusableAction(icon: Symbols.refresh_rounded, tooltip: t.liveTv.reloadGuide, onPressed: _loadChannels),
],
),
]),
),
body: _buildLiveTvBody(theme, useSideNav),
);
}
Widget _buildLiveTvBody(ThemeData theme, bool useSideNav) {
if (_isLoading) {
return const Center(child: CircularProgressIndicator());
}
if (_error != null) {
return Center(
child: Column(
mainAxisSize: 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),
FilledButton.icon(
onPressed: _loadChannels,
icon: const AppIcon(Symbols.refresh_rounded),
label: Text(t.common.retry),
),
],
),
);
}
if (_channels.isEmpty) {
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: Alignment.centerLeft,
child: SingleChildScrollView(
scrollDirection: Axis.horizontal,
child: Row(
children: [
for (int i = 0; i < LiveTvTab.values.length; i++) ...[
if (i > 0) const SizedBox(width: 8),
buildTabChip(
_getTabLabel(LiveTvTab.values[i]),
i,
onSelectWhenActive: _focusCurrentTab,
onNavigateDown: _focusCurrentTab,
onNavigateRightFromLast: () => _actionBarKey.currentState?.requestFocusOnFirst(),
),
],
],
),
),
),
Expanded(
child: TabBarView(
controller: tabController,
children: [
GuideTab(
key: _guideTabKey,
channels: guideChannels,
favoriteChannelIds: _favoriteChannelIds,
onToggleFavorite: _toggleFavorite,
onNavigateUp: focusTabBar,
onBack: onTabBarBack,
),
WhatsOnTab(key: _whatsOnTabKey, channels: _channels, onNavigateUp: focusTabBar, onBack: onTabBarBack),
],
),
),
],
);
}
}