import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:intl/intl.dart';
import '../services/iptv_provider.dart';
import '../models/xtream_models.dart';
import '../utils/channel_name_formatter.dart';
import 'player_screen.dart';
import '../widgets/simple_countries_sidebar.dart';

class HomeScreen extends StatefulWidget {
  const HomeScreen({super.key});

  @override
  State<HomeScreen> createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> {
  @override
  void initState() {
    super.initState();
    // No automatic data loading on startup
  }

  double get _screenWidth => MediaQuery.of(context).size.width;
  bool get _isLargeScreen => _screenWidth > 900;
  double get _headerPadding => _isLargeScreen ? 32 : 24;

  void _showLiveCategories() {
    Navigator.push(
      context,
      MaterialPageRoute(
        builder: (_) => const ContentListScreen(type: ContentType.live),
      ),
    );
  }

  Future<void> _refreshChannels() async {
    final provider = context.read<IPTVProvider>();
    await provider.reloadM3UStreams();
  }

  Future<void> _downloadPlaylistAsJson() async {
    final provider = context.read<IPTVProvider>();

    try {
      final filePath = await provider.downloadAndSaveM3UAsJson();

      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
            content: Text('Playlist guardada en: $filePath'),
            duration: const Duration(seconds: 5),
            action: SnackBarAction(label: 'OK', onPressed: () {}),
          ),
        );
      }
    } catch (e) {
      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
            content: Text('Error: $e'),
            backgroundColor: Colors.red,
            duration: const Duration(seconds: 5),
          ),
        );
      }
    }
  }

  void _showMovies() async {
    final provider = context.read<IPTVProvider>();
    // Cargar películas bajo demanda
    if (provider.vodStreams.isEmpty) {
      await provider.loadVodStreams();
    }
    if (!mounted) return;
    Navigator.push(
      context,
      MaterialPageRoute(
        builder: (_) => const ContentListScreen(type: ContentType.movies),
      ),
    );
  }

  void _showSeries() async {
    final provider = context.read<IPTVProvider>();
    // Cargar series bajo demanda
    if (provider.seriesList.isEmpty) {
      await provider.loadSeries();
    }
    if (!mounted) return;
    Navigator.push(
      context,
      MaterialPageRoute(
        builder: (_) => const ContentListScreen(type: ContentType.series),
      ),
    );
  }

  String _formatExpiry(int? timestamp) {
    if (timestamp == null) return 'Ilimitado';
    try {
      final date = DateTime.fromMillisecondsSinceEpoch(timestamp * 1000);
      return DateFormat('dd MMM yyyy').format(date);
    } catch (_) {
      return 'Ilimitado';
    }
  }

  @override
  Widget build(BuildContext context) {
    final now = DateTime.now();
    final dateStr = DateFormat('EEEE, dd MMMM').format(now);
    final timeStr = DateFormat('HH:mm').format(now);

    return Scaffold(
      body: Container(
        decoration: const BoxDecoration(
          gradient: RadialGradient(
            center: Alignment.center,
            radius: 1.5,
            colors: [Color(0xFF1a1a2e), Color(0xFF0f0f1a)],
          ),
        ),
        child: SafeArea(
          child: Column(
            children: [
              _buildHeader(timeStr, dateStr),
              Expanded(child: _buildDashboard()),
              _buildFooter(),
            ],
          ),
        ),
      ),
    );
  }

  Widget _buildHeader(String timeStr, String dateStr) {
    final double titleSize = _isLargeScreen ? 28.0 : 24.0;
    final double iconSize = _isLargeScreen ? 40.0 : 32.0;
    return Padding(
      padding: EdgeInsets.symmetric(
        horizontal: _headerPadding,
        vertical: _isLargeScreen ? 24 : 16,
      ),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          Row(
            children: [
              Icon(Icons.live_tv, color: Colors.red, size: iconSize),
              const SizedBox(width: 12),
              Text(
                'XSTREAM TV',
                style: TextStyle(
                  color: Colors.white,
                  fontSize: titleSize,
                  fontWeight: FontWeight.bold,
                  letterSpacing: 2,
                ),
              ),
            ],
          ),
          Row(
            children: [
              Text(
                timeStr,
                style: TextStyle(
                  color: Colors.white70,
                  fontSize: _isLargeScreen ? 20 : 16,
                ),
              ),
              const SizedBox(width: 16),
              Text(
                dateStr,
                style: TextStyle(
                  color: Colors.white54,
                  fontSize: _isLargeScreen ? 16 : 14,
                ),
              ),
              const SizedBox(width: 24),
              Icon(
                Icons.person,
                color: Colors.white70,
                size: _isLargeScreen ? 32 : 24,
              ),
              const SizedBox(width: 16),
              Consumer<IPTVProvider>(
                builder: (context, provider, _) {
                  if (provider.isLoading) {
                    return Row(
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        SizedBox(
                          width: _isLargeScreen ? 32 : 24,
                          height: _isLargeScreen ? 32 : 24,
                          child: CircularProgressIndicator(
                            color: Colors.white70,
                            strokeWidth: 2,
                          ),
                        ),
                        const SizedBox(width: 12),
                        if (provider.totalChannels > 0)
                          Text(
                            'Cargando canales... ${provider.loadedChannels} de ${provider.totalChannels}',
                            style: TextStyle(
                              color: Colors.white70,
                              fontSize: _isLargeScreen ? 14 : 12,
                            ),
                          )
                        else
                          Text(
                            'Cargando canales...',
                            style: TextStyle(
                              color: Colors.white70,
                              fontSize: _isLargeScreen ? 14 : 12,
                            ),
                          ),
                      ],
                    );
                  }
                  return Focus(
                    child: Builder(
                      builder: (context) {
                        final hasFocus = Focus.of(context).hasFocus;
                        return Container(
                          decoration: hasFocus
                              ? BoxDecoration(
                                  shape: BoxShape.circle,
                                  border: Border.all(
                                    color: Colors.white,
                                    width: 2,
                                  ),
                                )
                              : null,
                          child: IconButton(
                            icon: Icon(
                              Icons.refresh,
                              color: hasFocus ? Colors.white : Colors.white70,
                              size: _isLargeScreen ? 32 : 24,
                            ),
                            onPressed: _refreshChannels,
                            tooltip: 'Actualizar canales',
                          ),
                        );
                      },
                    ),
                  );
                },
              ),
              const SizedBox(width: 8),
              Focus(
                child: Builder(
                  builder: (context) {
                    final hasFocus = Focus.of(context).hasFocus;
                    return Container(
                      decoration: hasFocus
                          ? BoxDecoration(
                              shape: BoxShape.circle,
                              border: Border.all(color: Colors.white, width: 2),
                            )
                          : null,
                      child: IconButton(
                        icon: Icon(
                          Icons.download,
                          color: hasFocus ? Colors.white : Colors.white70,
                          size: _isLargeScreen ? 32 : 24,
                        ),
                        onPressed: () => _downloadPlaylistAsJson(),
                        tooltip: 'Descargar playlist como JSON',
                      ),
                    );
                  },
                ),
              ),
              const SizedBox(width: 8),
              Focus(
                child: Builder(
                  builder: (context) {
                    final hasFocus = Focus.of(context).hasFocus;
                    return Container(
                      decoration: hasFocus
                          ? BoxDecoration(
                              shape: BoxShape.circle,
                              border: Border.all(color: Colors.white, width: 2),
                            )
                          : null,
                      child: IconButton(
                        icon: Icon(
                          Icons.settings,
                          color: hasFocus ? Colors.white : Colors.white70,
                          size: _isLargeScreen ? 32 : 24,
                        ),
                        onPressed: () {
                          context.read<IPTVProvider>().logout();
                        },
                      ),
                    );
                  },
                ),
              ),
            ],
          ),
        ],
      ),
    );
  }

  Widget _buildDashboard() {
    final double cardSpacing = _isLargeScreen ? 24.0 : 16.0;
    return Padding(
      padding: EdgeInsets.symmetric(horizontal: _headerPadding),
      child: Row(
        children: [
          Expanded(
            flex: 2,
            child: _DashboardCard(
              title: 'LIVE TV',
              icon: Icons.tv,
              isLarge: _isLargeScreen,
              gradient: const LinearGradient(
                colors: [Color(0xFF00c853), Color(0xFF2979ff)],
                begin: Alignment.topLeft,
                end: Alignment.bottomRight,
              ),
              onTap: _showLiveCategories,
            ),
          ),
          SizedBox(width: cardSpacing),
          Expanded(
            child: Column(
              children: [
                Expanded(
                  child: _DashboardCard(
                    title: 'MOVIES',
                    icon: Icons.play_circle_fill,
                    isLarge: _isLargeScreen,
                    gradient: const LinearGradient(
                      colors: [Color(0xFFff5252), Color(0xFFff9800)],
                      begin: Alignment.topLeft,
                      end: Alignment.bottomRight,
                    ),
                    onTap: _showMovies,
                  ),
                ),
                SizedBox(height: cardSpacing),
                Expanded(
                  child: _DashboardCard(
                    title: 'SERIES',
                    icon: Icons.tv,
                    isLarge: _isLargeScreen,
                    gradient: const LinearGradient(
                      colors: [Color(0xFF9c27b0), Color(0xFF03a9f4)],
                      begin: Alignment.topLeft,
                      end: Alignment.bottomRight,
                    ),
                    onTap: _showSeries,
                  ),
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }

  Widget _buildFooter() {
    final double footerPadding = _isLargeScreen ? 32.0 : 24.0;
    final double fontSize = _isLargeScreen ? 16.0 : 12.0;
    return Consumer<IPTVProvider>(
      builder: (context, provider, _) {
        final expDate = provider.userInfo?.expDate;
        final username = provider.userInfo?.username ?? 'Usuario';

        return Padding(
          padding: EdgeInsets.all(footerPadding),
          child: Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              Text(
                'Expiración: ${_formatExpiry(expDate)}',
                style: TextStyle(color: Colors.white38, fontSize: fontSize),
              ),
              Text(
                'Términos de Servicio',
                style: TextStyle(color: Colors.white38, fontSize: fontSize),
              ),
              Text(
                'Usuario: $username',
                style: TextStyle(color: Colors.white38, fontSize: fontSize),
              ),
            ],
          ),
        );
      },
    );
  }
}

class _DashboardCard extends StatefulWidget {
  final String title;
  final IconData icon;
  final Gradient gradient;
  final VoidCallback onTap;
  final bool isLarge;

  const _DashboardCard({
    required this.title,
    required this.icon,
    required this.gradient,
    required this.onTap,
    this.isLarge = false,
  });

  @override
  State<_DashboardCard> createState() => _DashboardCardState();
}

class _DashboardCardState extends State<_DashboardCard> {
  bool _hasFocus = false;

  void _handleTap() {
    widget.onTap();
  }

  @override
  Widget build(BuildContext context) {
    final iconSize = widget.isLarge ? 80.0 : 60.0;
    final titleSize = widget.isLarge ? 32.0 : 24.0;
    final bgIconSize = widget.isLarge ? 200.0 : 150.0;

    return FocusableActionDetector(
      actions: <Type, Action<Intent>>{
        ActivateIntent: CallbackAction<ActivateIntent>(
          onInvoke: (intent) {
            _handleTap();
            return null;
          },
        ),
        ButtonActivateIntent: CallbackAction<ButtonActivateIntent>(
          onInvoke: (intent) {
            _handleTap();
            return null;
          },
        ),
      },
      onFocusChange: (hasFocus) {
        setState(() {
          _hasFocus = hasFocus;
        });
      },
      child: GestureDetector(
        onTap: _handleTap,
        child: AnimatedContainer(
          duration: const Duration(milliseconds: 200),
          decoration: BoxDecoration(
            gradient: widget.gradient,
            borderRadius: BorderRadius.circular(20),
            boxShadow: [
              BoxShadow(
                color: _hasFocus
                    ? Colors.white.withValues(alpha: 0.6)
                    : Colors.black.withValues(alpha: 0.3),
                blurRadius: _hasFocus ? 35 : 15,
                spreadRadius: _hasFocus ? 6 : 0,
                offset: const Offset(0, 8),
              ),
            ],
            border: _hasFocus
                ? Border.all(color: Colors.white, width: 5)
                : Border.all(color: Colors.transparent, width: 5),
          ),
          child: Stack(
            children: [
              Positioned(
                right: -40,
                bottom: -40,
                child: Icon(
                  widget.icon,
                  size: bgIconSize,
                  color: Colors.white.withValues(alpha: 0.1),
                ),
              ),
              Center(
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    Icon(widget.icon, size: iconSize, color: Colors.white),
                    const SizedBox(height: 16),
                    Text(
                      widget.title,
                      style: TextStyle(
                        color: Colors.white,
                        fontSize: titleSize,
                        fontWeight: FontWeight.bold,
                        letterSpacing: 2,
                      ),
                    ),
                  ],
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

enum ContentType { live, movies, series }

class ContentListScreen extends StatefulWidget {
  final ContentType type;

  const ContentListScreen({super.key, required this.type});

  @override
  State<ContentListScreen> createState() => _ContentListScreenState();
}

class _ContentListScreenState extends State<ContentListScreen> {
  final TextEditingController _searchController = TextEditingController();
  String _searchQuery = '';
  String? _selectedCountry;

  List<XtreamStream>? _lastSearchSource;
  String _lastSearchQuery = '';
  List<XtreamStream>? _lastSearchResults;

  @override
  void initState() {
    super.initState();
    _loadContent();
  }

  double get _screenWidth => MediaQuery.of(context).size.width;
  bool get _isLargeScreen => _screenWidth > 900;
  bool get _isMediumScreen => _screenWidth > 600 && _screenWidth <= 900;

  int get _gridCrossAxisCount {
    if (_screenWidth > 900) return 6;
    if (_screenWidth > 600) return 4;
    return 3;
  }

  double get _titleFontSize =>
      _isLargeScreen ? 32 : (_isMediumScreen ? 28 : 24);
  double get _headerPadding => _isLargeScreen ? 32 : 16;

  void _loadContent() {
    final provider = context.read<IPTVProvider>();
    if (widget.type == ContentType.live) {
      // Keep live list in memory while app is running.
      if (provider.liveStreams.isEmpty) {
        provider.loadLiveStreams(_selectedCountry ?? '');
      }
    } else if (widget.type == ContentType.movies) {
      provider.loadVodStreams();
    } else {
      provider.loadSeries();
    }
  }

  void _onFootballSelected() {
    final provider = context.read<IPTVProvider>();
    provider.filterByCategory(SpecialCategories.argentineFootball);
  }

  @override
  void dispose() {
    _searchController.dispose();
    super.dispose();
  }

  String get _title {
    switch (widget.type) {
      case ContentType.live:
        return 'TV en Vivo';
      case ContentType.movies:
        return 'Películas';
      case ContentType.series:
        return 'Series';
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: const Color(0xFF0f0f1a),
      body: SafeArea(
        child: Column(
          children: [
            _buildHeader(),
            if (widget.type == ContentType.live)
              Expanded(
                child: Row(
                  children: [
                    _buildCountrySidebar(),
                    Expanded(child: _buildContentList()),
                  ],
                ),
              )
            else
              Expanded(child: _buildContentList()),
          ],
        ),
      ),
    );
  }

  Widget _buildHeader() {
    final searchWidth = _isLargeScreen
        ? 350.0
        : (_isMediumScreen ? 300.0 : 250.0);
    final searchHeight = _isLargeScreen ? 56.0 : 44.0;
    final iconSize = _isLargeScreen ? 32.0 : 24.0;
    final showSearch = widget.type != ContentType.live;
    return Container(
      padding: EdgeInsets.all(_headerPadding),
      child: Row(
        children: [
          IconButton(
            icon: Icon(Icons.arrow_back, color: Colors.white, size: iconSize),
            onPressed: () => Navigator.pop(context),
            iconSize: 48,
            padding: EdgeInsets.all(_isLargeScreen ? 12 : 8),
          ),
          const SizedBox(width: 8),
          Text(
            _title,
            style: TextStyle(
              color: Colors.white,
              fontSize: _titleFontSize,
              fontWeight: FontWeight.bold,
            ),
          ),
          const Spacer(),
          if (showSearch)
            SizedBox(
              width: searchWidth,
              height: searchHeight,
              child: TextField(
                controller: _searchController,
                style: TextStyle(
                  color: Colors.white,
                  fontSize: _isLargeScreen ? 18 : 14,
                ),
                decoration: InputDecoration(
                  hintText: 'Buscar...',
                  hintStyle: TextStyle(
                    color: Colors.grey,
                    fontSize: _isLargeScreen ? 18 : 14,
                  ),
                  prefixIcon: Icon(
                    Icons.search,
                    color: Colors.grey,
                    size: _isLargeScreen ? 28 : 20,
                  ),
                  suffixIcon: _searchQuery.isNotEmpty
                      ? IconButton(
                          icon: Icon(
                            Icons.clear,
                            color: Colors.grey,
                            size: _isLargeScreen ? 28 : 20,
                          ),
                          onPressed: () {
                            _searchController.clear();
                            setState(() {
                              _searchQuery = '';
                              _lastSearchResults = null;
                            });
                          },
                        )
                      : null,
                  filled: true,
                  fillColor: Colors.grey[900],
                  border: OutlineInputBorder(
                    borderRadius: BorderRadius.circular(8),
                    borderSide: BorderSide.none,
                  ),
                  contentPadding: EdgeInsets.symmetric(
                    horizontal: 16,
                    vertical: _isLargeScreen ? 16 : 12,
                  ),
                ),
                onChanged: (value) {
                  setState(() {
                    _searchQuery = value;
                  });
                },
              ),
            ),
        ],
      ),
    );
  }

  List<XtreamStream> _buildStreamsForType(IPTVProvider provider) {
    if (widget.type == ContentType.live) {
      return provider.filteredLiveStreams;
    }
    if (widget.type == ContentType.movies) {
      return provider.vodStreams;
    }
    return provider.seriesList
        .map(
          (s) => XtreamStream(
            streamId: s.seriesId,
            name: s.name,
            streamIcon: s.cover,
            plot: s.plot,
            rating: s.rating,
          ),
        )
        .toList(growable: false);
  }

  List<XtreamStream> _applySearchFilter(List<XtreamStream> streams) {
    if (_searchQuery.isEmpty) {
      _lastSearchSource = streams;
      _lastSearchQuery = '';
      _lastSearchResults = streams;
      return streams;
    }

    if (identical(streams, _lastSearchSource) &&
        _searchQuery == _lastSearchQuery &&
        _lastSearchResults != null) {
      return _lastSearchResults!;
    }

    final query = _searchQuery.toLowerCase();
    final filtered = streams
        .where((stream) {
          final name = stream.name.toLowerCase();
          if (query == 'arg|') {
            return name.contains('arg|');
          }
          return name.contains(query);
        })
        .toList(growable: false);

    _lastSearchSource = streams;
    _lastSearchQuery = _searchQuery;
    _lastSearchResults = filtered;
    return filtered;
  }

  Widget _buildCountrySidebar() {
    return Consumer<IPTVProvider>(
      builder: (context, provider, _) {
        final countries = provider.countries;
        return SimpleCountriesSidebar(
          countries: countries,
          selectedCountry: provider.selectedCategory.isNotEmpty
              ? provider.selectedCategory
              : provider.selectedCountry,
          onCountrySelected: (country) => provider.filterByCountry(country),
          isLoading: provider.isLoading,
          isOrganizing: provider.isOrganizingCountries,
          showFootballCategory: true,
          onFootballSelected: () => _onFootballSelected(),
        );
      },
    );
  }

  Widget _buildContentList() {
    final padding = _isLargeScreen ? 24.0 : 16.0;
    final spacing = _isLargeScreen ? 16.0 : 12.0;
    return Consumer<IPTVProvider>(
      builder: (context, provider, _) {
        if (provider.isLoading) {
          return Center(
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                CircularProgressIndicator(
                  color: Colors.red,
                  strokeWidth: _isLargeScreen ? 4 : 2,
                ),
                const SizedBox(height: 16),
                if (provider.totalChannels > 0)
                  Text(
                    'Cargando canales... ${provider.loadedChannels} de ${provider.totalChannels}',
                    style: TextStyle(
                      color: Colors.white70,
                      fontSize: _isLargeScreen ? 18 : 14,
                    ),
                  )
                else
                  Text(
                    'Cargando canales...',
                    style: TextStyle(
                      color: Colors.white70,
                      fontSize: _isLargeScreen ? 18 : 14,
                    ),
                  ),
                const SizedBox(height: 8),
                if (provider.totalChannels > 0)
                  SizedBox(
                    width: 200,
                    child: LinearProgressIndicator(
                      value: provider.loadingProgress,
                      backgroundColor: Colors.grey[800],
                      valueColor: const AlwaysStoppedAnimation<Color>(
                        Colors.red,
                      ),
                    ),
                  ),
              ],
            ),
          );
        }

        final baseStreams = _buildStreamsForType(provider);
        final streams = _applySearchFilter(baseStreams);

        if (streams.isEmpty) {
          return Center(
            child: Text(
              _searchQuery.isNotEmpty
                  ? 'No se encontraron resultados'
                  : 'Sin contenido',
              style: TextStyle(
                color: Colors.grey,
                fontSize: _isLargeScreen ? 20 : 16,
              ),
            ),
          );
        }

        return GridView.builder(
          padding: EdgeInsets.all(padding),
          cacheExtent: _isLargeScreen ? 1600 : 1100,
          gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
            crossAxisCount: _gridCrossAxisCount,
            childAspectRatio: 16 / 9,
            crossAxisSpacing: spacing,
            mainAxisSpacing: spacing,
          ),
          itemCount: streams.length,
          itemBuilder: (context, index) {
            final stream = streams[index];
            return _ChannelCard(
              stream: stream,
              isSeries: widget.type == ContentType.series,
              isLarge: _isLargeScreen,
              onTap: () {
                if (widget.type == ContentType.series) {
                  final series = provider.seriesList.firstWhere(
                    (s) => s.seriesId == stream.streamId,
                  );
                  Navigator.push(
                    context,
                    MaterialPageRoute(
                      builder: (_) => SeriesEpisodesScreen(series: series),
                    ),
                  );
                } else {
                  Navigator.push(
                    context,
                    MaterialPageRoute(
                      builder: (_) => PlayerScreen(
                        stream: stream,
                        isLive: widget.type == ContentType.live,
                      ),
                    ),
                  );
                }
              },
            );
          },
        );
      },
    );
  }
}

class _ChannelCard extends StatefulWidget {
  final XtreamStream stream;
  final bool isSeries;
  final VoidCallback onTap;
  final bool isLarge;

  const _ChannelCard({
    required this.stream,
    required this.isSeries,
    required this.onTap,
    this.isLarge = false,
  });

  @override
  State<_ChannelCard> createState() => _ChannelCardState();
}

class _ChannelCardState extends State<_ChannelCard> {
  bool _hasFocus = false;

  void _handleTap() {
    widget.onTap();
  }

  @override
  Widget build(BuildContext context) {
    final textSize = widget.isLarge ? 16.0 : 12.0;
    final ratingFontSize = widget.isLarge ? 14.0 : 10.0;
    final placeholderIconSize = widget.isLarge ? 56.0 : 40.0;
    final padding = widget.isLarge ? 12.0 : 8.0;
    final ratingPaddingH = widget.isLarge ? 10.0 : 6.0;
    final ratingPaddingV = widget.isLarge ? 4.0 : 2.0;
    return FocusableActionDetector(
      actions: <Type, Action<Intent>>{
        ActivateIntent: CallbackAction<ActivateIntent>(
          onInvoke: (intent) {
            _handleTap();
            return null;
          },
        ),
        ButtonActivateIntent: CallbackAction<ButtonActivateIntent>(
          onInvoke: (intent) {
            _handleTap();
            return null;
          },
        ),
      },
      onFocusChange: (hasFocus) {
        setState(() {
          _hasFocus = hasFocus;
        });
      },
      child: GestureDetector(
        onTap: _handleTap,
        child: AnimatedContainer(
          duration: const Duration(milliseconds: 200),
          decoration: BoxDecoration(
            color: Colors.grey[900],
            borderRadius: BorderRadius.circular(16),
            border: Border.all(
              color: _hasFocus ? Colors.red : Colors.red.withValues(alpha: 0.3),
              width: _hasFocus ? 3 : 1,
            ),
            boxShadow: _hasFocus
                ? [
                    BoxShadow(
                      color: Colors.red.withValues(alpha: 0.3),
                      blurRadius: 15,
                      spreadRadius: 2,
                    ),
                  ]
                : null,
          ),
          child: Stack(
            children: [
              if (widget.stream.streamIcon != null &&
                  widget.stream.streamIcon!.isNotEmpty)
                ClipRRect(
                  borderRadius: BorderRadius.circular(16),
                  child: Image.network(
                    widget.stream.streamIcon!,
                    width: double.infinity,
                    height: double.infinity,
                    fit: BoxFit.cover,
                    cacheWidth: widget.isLarge ? 512 : 384,
                    cacheHeight: widget.isLarge ? 288 : 216,
                    filterQuality: FilterQuality.low,
                    gaplessPlayback: false,
                    errorBuilder: (context, error, stackTrace) =>
                        _buildPlaceholder(placeholderIconSize),
                  ),
                )
              else
                _buildPlaceholder(placeholderIconSize),
              Container(
                decoration: BoxDecoration(
                  borderRadius: BorderRadius.circular(16),
                  gradient: LinearGradient(
                    begin: Alignment.topCenter,
                    end: Alignment.bottomCenter,
                    colors: [
                      Colors.transparent,
                      Colors.black.withValues(alpha: 0.8),
                    ],
                  ),
                ),
              ),
              Positioned(
                left: padding,
                right: padding,
                bottom: padding,
                child: SizedBox(
                  height: textSize * 2.8,
                  child: Center(
                    child: Text(
                      ChannelNameFormatter.forDisplay(widget.stream.name),
                      style: TextStyle(
                        color: Colors.white,
                        fontSize: textSize,
                        fontWeight: FontWeight.w600,
                        height: 1.15,
                      ),
                      maxLines: 2,
                      textAlign: TextAlign.center,
                      overflow: TextOverflow.ellipsis,
                    ),
                  ),
                ),
              ),
              if (widget.stream.rating != null)
                Positioned(
                  top: padding,
                  right: padding,
                  child: Container(
                    padding: EdgeInsets.symmetric(
                      horizontal: ratingPaddingH,
                      vertical: ratingPaddingV,
                    ),
                    decoration: BoxDecoration(
                      color: Colors.amber,
                      borderRadius: BorderRadius.circular(6),
                    ),
                    child: Text(
                      widget.stream.rating!,
                      style: TextStyle(
                        color: Colors.black,
                        fontSize: ratingFontSize,
                        fontWeight: FontWeight.bold,
                      ),
                    ),
                  ),
                ),
            ],
          ),
        ),
      ),
    );
  }

  Widget _buildPlaceholder(double iconSize) {
    return Container(
      color: Colors.grey[800],
      child: Center(
        child: Icon(
          widget.isSeries ? Icons.tv : Icons.play_circle_outline,
          color: Colors.red,
          size: iconSize,
        ),
      ),
    );
  }
}

class SeriesEpisodesScreen extends StatefulWidget {
  final XtreamSeries series;

  const SeriesEpisodesScreen({super.key, required this.series});

  @override
  State<SeriesEpisodesScreen> createState() => _SeriesEpisodesScreenState();
}

class _SeriesEpisodesScreenState extends State<SeriesEpisodesScreen> {
  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) {
      context.read<IPTVProvider>().loadSeriesEpisodes(widget.series);
    });
  }

  double get _screenWidth => MediaQuery.of(context).size.width;
  bool get _isLargeScreen => _screenWidth > 900;

  @override
  Widget build(BuildContext context) {
    final double fontSize = _isLargeScreen ? 24.0 : 20.0;
    final double iconSize = _isLargeScreen ? 56.0 : 40.0;
    final double padding = _isLargeScreen ? 24.0 : 16.0;
    return Scaffold(
      backgroundColor: const Color(0xFF0f0f1a),
      body: SafeArea(
        child: Column(
          children: [
            Container(
              padding: EdgeInsets.all(padding),
              child: Row(
                children: [
                  IconButton(
                    icon: Icon(
                      Icons.arrow_back,
                      color: Colors.white,
                      size: iconSize,
                    ),
                    onPressed: () => Navigator.pop(context),
                    iconSize: 48,
                    padding: EdgeInsets.all(_isLargeScreen ? 12 : 8),
                  ),
                  const SizedBox(width: 8),
                  Expanded(
                    child: Text(
                      widget.series.name,
                      style: TextStyle(
                        color: Colors.white,
                        fontSize: fontSize,
                        fontWeight: FontWeight.bold,
                      ),
                      maxLines: 1,
                      overflow: TextOverflow.ellipsis,
                    ),
                  ),
                ],
              ),
            ),
            Expanded(
              child: Consumer<IPTVProvider>(
                builder: (context, provider, _) {
                  if (provider.isLoading) {
                    return Center(
                      child: CircularProgressIndicator(
                        color: Colors.red,
                        strokeWidth: _isLargeScreen ? 4 : 2,
                      ),
                    );
                  }

                  final episodes = provider.seriesEpisodes;
                  if (episodes.isEmpty) {
                    return Center(
                      child: Text(
                        'No hay episodios',
                        style: TextStyle(
                          color: Colors.grey,
                          fontSize: _isLargeScreen ? 20 : 16,
                        ),
                      ),
                    );
                  }

                  return ListView.builder(
                    padding: EdgeInsets.all(padding),
                    itemCount: episodes.length,
                    itemBuilder: (context, index) {
                      final episode = episodes[index];
                      return Card(
                        color: Colors.grey[900],
                        margin: EdgeInsets.only(
                          bottom: _isLargeScreen ? 16 : 8,
                        ),
                        child: ListTile(
                          contentPadding: EdgeInsets.all(
                            _isLargeScreen ? 16 : 12,
                          ),
                          leading: Icon(
                            Icons.play_circle_fill,
                            color: Colors.red,
                            size: iconSize,
                          ),
                          title: Text(
                            'S${episode.seasonNumber}E${episode.episodeNumber} - ${episode.title}',
                            style: TextStyle(
                              color: Colors.white,
                              fontSize: _isLargeScreen ? 20 : 16,
                            ),
                          ),
                          onTap: () {
                            Navigator.push(
                              context,
                              MaterialPageRoute(
                                builder: (_) => PlayerScreen(
                                  stream: XtreamStream(
                                    streamId: episode.episodeId,
                                    name: episode.title,
                                    containerExtension:
                                        episode.containerExtension,
                                    url: episode.url,
                                  ),
                                  isLive: false,
                                ),
                              ),
                            );
                          },
                        ),
                      );
                    },
                  );
                },
              ),
            ),
          ],
        ),
      ),
    );
  }
}