// lib/screens/learn_more_screen.dart
import 'dart:async';
import 'dart:ui';
import 'package:flutter/material.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';
import 'package:share_plus/share_plus.dart';
import 'package:url_launcher/url_launcher.dart';

import '../features/events/models/event_models.dart';
import '../features/events/services/events_service.dart';

class LearnMoreScreen extends StatefulWidget {
  final int eventId;
  const LearnMoreScreen({Key? key, required this.eventId}) : super(key: key);

  @override
  State<LearnMoreScreen> createState() => _LearnMoreScreenState();
}

class _LearnMoreScreenState extends State<LearnMoreScreen> {
  final EventsService _service = EventsService();

  bool _loading = true;
  EventModel? _event;
  String? _error;

  // Carousel
  final PageController _pageController = PageController();
  int _currentPage = 0;
  Timer? _autoScrollTimer;

  // About section
  bool _aboutExpanded = false;

  // Wishlist (UI-only)
  bool _wishlisted = false;

  // Google Map
  GoogleMapController? _mapController;
  MapType _mapType = MapType.normal;
  bool _showMapControls = false;

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

  @override
  void dispose() {
    _autoScrollTimer?.cancel();
    _pageController.dispose();
    _mapController?.dispose();
    super.dispose();
  }

  // ---------------------------------------------------------------------------
  // Data loading
  // ---------------------------------------------------------------------------

  Future<void> _loadEvent() async {
    setState(() {
      _loading = true;
      _error = null;
    });
    try {
      final ev = await _service.getEventDetails(widget.eventId);
      if (!mounted) return;
      setState(() => _event = ev);
      _startAutoScroll();
    } catch (e) {
      if (!mounted) return;
      setState(() => _error = e.toString());
    } finally {
      if (mounted) setState(() => _loading = false);
    }
  }

  // ---------------------------------------------------------------------------
  // Carousel helpers
  // ---------------------------------------------------------------------------

  List<String> get _imageUrls {
    final list = <String>[];
    if (_event == null) return list;
    final thumb = _event!.thumbImg;
    if (thumb != null && thumb.isNotEmpty) list.add(thumb);
    for (final img in _event!.images) {
      if (img.image.isNotEmpty && !list.contains(img.image)) list.add(img.image);
    }
    return list;
  }

  void _startAutoScroll() {
    _autoScrollTimer?.cancel();
    final count = _imageUrls.length;
    if (count <= 1) return;
    _autoScrollTimer = Timer.periodic(const Duration(seconds: 3), (_) {
      if (!_pageController.hasClients) return;
      final next = (_currentPage + 1) % count;
      _pageController.animateToPage(next,
          duration: const Duration(milliseconds: 500), curve: Curves.easeInOut);
    });
  }

  // ---------------------------------------------------------------------------
  // Date formatting
  // ---------------------------------------------------------------------------

  String _formattedDateRange() {
    if (_event == null) return '';
    try {
      final s = DateTime.parse(_event!.startDate);
      final e = DateTime.parse(_event!.endDate);
      const months = [
        'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
        'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'
      ];
      if (s.year == e.year && s.month == e.month && s.day == e.day) {
        return '${s.day} ${months[s.month - 1]}';
      }
      if (s.month == e.month && s.year == e.year) {
        return '${s.day} - ${e.day} ${months[s.month - 1]}';
      }
      return '${s.day} ${months[s.month - 1]} - ${e.day} ${months[e.month - 1]}';
    } catch (_) {
      return '${_event!.startDate} – ${_event!.endDate}';
    }
  }

  // ---------------------------------------------------------------------------
  // Actions
  // ---------------------------------------------------------------------------

  Future<void> _shareEvent() async {
    final title = _event?.title ?? _event?.name ?? 'Check out this event';
    final url =
        'https://uat.eventifyplus.com/events/${widget.eventId}';
    await Share.share('$title\n$url', subject: title);
  }

  Future<void> _openUrl(String url) async {
    final uri = Uri.parse(url);
    if (await canLaunchUrl(uri)) {
      await launchUrl(uri, mode: LaunchMode.externalApplication);
    }
  }

  void _viewLargerMap() {
    if (_event?.latitude == null || _event?.longitude == null) return;
    _openUrl(
        'https://www.google.com/maps/search/?api=1&query=${_event!.latitude},${_event!.longitude}');
  }

  void _getDirections() {
    if (_event?.latitude == null || _event?.longitude == null) return;
    _openUrl(
        'https://www.google.com/maps/dir/?api=1&destination=${_event!.latitude},${_event!.longitude}');
  }

  // ---------------------------------------------------------------------------
  // Map camera helpers
  // ---------------------------------------------------------------------------

  void _moveCamera(double latDelta, double lngDelta) {
    _mapController?.animateCamera(CameraUpdate.scrollBy(lngDelta * 80, -latDelta * 80));
  }

  void _zoom(double amount) {
    _mapController?.animateCamera(CameraUpdate.zoomBy(amount));
  }

  // ---------------------------------------------------------------------------
  // BUILD
  // ---------------------------------------------------------------------------

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);

    if (_loading) {
      return Scaffold(
        backgroundColor: theme.scaffoldBackgroundColor,
        body: _buildLoadingShimmer(theme),
      );
    }

    if (_error != null) {
      return Scaffold(
        backgroundColor: theme.scaffoldBackgroundColor,
        body: Center(
          child: Padding(
            padding: const EdgeInsets.all(32),
            child: Column(
              mainAxisSize: MainAxisSize.min,
              children: [
                Icon(Icons.error_outline, size: 56, color: theme.colorScheme.error),
                const SizedBox(height: 16),
                Text('Something went wrong',
                    style: theme.textTheme.titleMedium
                        ?.copyWith(fontWeight: FontWeight.bold)),
                const SizedBox(height: 8),
                Text(_error!, textAlign: TextAlign.center, style: theme.textTheme.bodyMedium),
                const SizedBox(height: 24),
                ElevatedButton.icon(
                  onPressed: _loadEvent,
                  icon: const Icon(Icons.refresh),
                  label: const Text('Retry'),
                ),
              ],
            ),
          ),
        ),
      );
    }

    if (_event == null) {
      return Scaffold(
        backgroundColor: theme.scaffoldBackgroundColor,
        body: const Center(child: Text('Event not found')),
      );
    }

    final screenHeight = MediaQuery.of(context).size.height;
    final imageHeight = screenHeight * 0.50;
    final overlap = 30.0;

    return Scaffold(
      backgroundColor: theme.scaffoldBackgroundColor,
      body: Stack(
        children: [
          // ── LAYER 1: Image carousel (background) ──
          _buildImageCarousel(theme, imageHeight),

          // ── LAYER 2: Scrollable content with overlapping white card ──
          SingleChildScrollView(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                // Transparent spacer — shows the image behind
                SizedBox(height: imageHeight - overlap),

                // White card with rounded top corners overlapping image
                Container(
                  width: double.infinity,
                  decoration: BoxDecoration(
                    color: theme.scaffoldBackgroundColor,
                    borderRadius: const BorderRadius.vertical(
                      top: Radius.circular(28),
                    ),
                    boxShadow: [
                      BoxShadow(
                        color: Colors.black.withOpacity(0.08),
                        blurRadius: 20,
                        offset: const Offset(0, -6),
                      ),
                    ],
                  ),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      _buildTitleSection(theme),
                      _buildAboutSection(theme),
                      if (_event!.latitude != null && _event!.longitude != null) ...[
                        _buildVenueSection(theme),
                        _buildGetDirectionsButton(theme),
                      ],
                      if (_event!.importantInfo.isNotEmpty)
                        _buildImportantInfoSection(theme),
                      if (_event!.importantInfo.isEmpty &&
                          (_event!.importantInformation ?? '').isNotEmpty)
                        _buildImportantInfoFallback(theme),
                      const SizedBox(height: 100),
                    ],
                  ),
                ),
              ],
            ),
          ),

          // ── LAYER 3: Floating icon row (above scrollview so taps work) ──
          Positioned(
            top: MediaQuery.of(context).padding.top + 10,
            left: 16,
            right: 16,
            child: Row(
              children: [
                _squareIconButton(
                  icon: Icons.arrow_back,
                  onTap: () => Navigator.pop(context),
                ),
                // Pill-shaped page indicators (centered)
                Expanded(
                  child: _imageUrls.length > 1
                      ? Row(
                          mainAxisAlignment: MainAxisAlignment.center,
                          children: List.generate(_imageUrls.length, (i) {
                            final active = i == _currentPage;
                            return AnimatedContainer(
                              duration: const Duration(milliseconds: 300),
                              margin: const EdgeInsets.symmetric(horizontal: 3),
                              width: active ? 18 : 8,
                              height: 6,
                              decoration: BoxDecoration(
                                color: active
                                    ? Colors.white
                                    : Colors.white.withOpacity(0.45),
                                borderRadius: BorderRadius.circular(3),
                              ),
                            );
                          }),
                        )
                      : const SizedBox.shrink(),
                ),
                _squareIconButton(
                  icon: Icons.ios_share_outlined,
                  onTap: _shareEvent,
                ),
                const SizedBox(width: 10),
                _squareIconButton(
                  icon: _wishlisted ? Icons.favorite : Icons.favorite_border,
                  iconColor: _wishlisted ? Colors.redAccent : Colors.white,
                  onTap: () => setState(() => _wishlisted = !_wishlisted),
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }

  // ---------------------------------------------------------------------------
  // 1. LOADING SHIMMER
  // ---------------------------------------------------------------------------

  Widget _buildLoadingShimmer(ThemeData theme) {
    return SafeArea(
      child: Padding(
        padding: const EdgeInsets.all(20),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            // Placeholder image
            Container(
              height: MediaQuery.of(context).size.height * 0.42,
              decoration: BoxDecoration(
                color: theme.dividerColor.withOpacity(0.3),
                borderRadius: BorderRadius.circular(28),
              ),
            ),
            const SizedBox(height: 24),
            // Placeholder title
            Container(
              height: 28,
              width: 220,
              decoration: BoxDecoration(
                color: theme.dividerColor.withOpacity(0.3),
                borderRadius: BorderRadius.circular(8),
              ),
            ),
            const SizedBox(height: 12),
            Container(
              height: 16,
              width: 140,
              decoration: BoxDecoration(
                color: theme.dividerColor.withOpacity(0.3),
                borderRadius: BorderRadius.circular(6),
              ),
            ),
            const SizedBox(height: 20),
            Container(
              height: 16,
              width: double.infinity,
              decoration: BoxDecoration(
                color: theme.dividerColor.withOpacity(0.3),
                borderRadius: BorderRadius.circular(6),
              ),
            ),
            const SizedBox(height: 8),
            Container(
              height: 16,
              width: double.infinity,
              decoration: BoxDecoration(
                color: theme.dividerColor.withOpacity(0.3),
                borderRadius: BorderRadius.circular(6),
              ),
            ),
          ],
        ),
      ),
    );
  }

  // ---------------------------------------------------------------------------
  // 2. IMAGE CAROUSEL WITH BLURRED BACKGROUND
  // ---------------------------------------------------------------------------

  Widget _buildImageCarousel(ThemeData theme, double carouselHeight) {
    final images = _imageUrls;
    final topPad = MediaQuery.of(context).padding.top;

    return SizedBox(
      height: carouselHeight,
      child: Stack(
        children: [
          // ---- Blurred background (image or blue gradient) ----
          Positioned.fill(
            child: images.isNotEmpty
                ? ClipRect(
                    child: Stack(
                      fit: StackFit.expand,
                      children: [
                        Image.network(
                          images[_currentPage],
                          fit: BoxFit.cover,
                          errorBuilder: (_, __, ___) => Container(
                            decoration: const BoxDecoration(
                              gradient: LinearGradient(
                                begin: Alignment.topLeft,
                                end: Alignment.bottomRight,
                                colors: [Color(0xFF1A56DB), Color(0xFF3B82F6)],
                              ),
                            ),
                          ),
                        ),
                        BackdropFilter(
                          filter: ImageFilter.blur(sigmaX: 25, sigmaY: 25),
                          child: Container(
                            color: Colors.black.withOpacity(0.15),
                          ),
                        ),
                      ],
                    ),
                  )
                : Container(
                    decoration: const BoxDecoration(
                      gradient: LinearGradient(
                        begin: Alignment.topLeft,
                        end: Alignment.bottomRight,
                        colors: [Color(0xFF1A56DB), Color(0xFF3B82F6)],
                      ),
                    ),
                  ),
          ),

          // ---- Foreground image with rounded corners ----
          if (images.isNotEmpty)
            Positioned(
              top: topPad + 56, // below the icon row
              left: 20,
              right: 20,
              bottom: 16,
              child: ClipRRect(
                borderRadius: BorderRadius.circular(20),
                child: PageView.builder(
                  controller: _pageController,
                  onPageChanged: (i) => setState(() => _currentPage = i),
                  itemCount: images.length,
                  itemBuilder: (_, i) => Image.network(
                    images[i],
                    fit: BoxFit.cover,
                    width: double.infinity,
                    errorBuilder: (_, __, ___) => Container(
                      color: theme.dividerColor,
                      child: Icon(Icons.broken_image, size: 48, color: theme.hintColor),
                    ),
                  ),
                ),
              ),
            ),

          // ---- No-image placeholder ----
          if (images.isEmpty)
            Positioned(
              top: topPad + 56,
              left: 20,
              right: 20,
              bottom: 16,
              child: Container(
                decoration: BoxDecoration(
                  color: Colors.white.withOpacity(0.15),
                  borderRadius: BorderRadius.circular(20),
                ),
                child: const Center(
                  child: Icon(Icons.event, size: 80, color: Colors.white70),
                ),
              ),
            ),
        ],
      ),
    );
  }

  /// Square icon button with rounded corners and translucent white background
  Widget _squareIconButton({
    required IconData icon,
    required VoidCallback onTap,
    Color iconColor = Colors.white,
  }) {
    return GestureDetector(
      onTap: onTap,
      child: Container(
        width: 42,
        height: 42,
        decoration: BoxDecoration(
          color: Colors.white.withOpacity(0.2),
          borderRadius: BorderRadius.circular(12),
          border: Border.all(color: Colors.white.withOpacity(0.3)),
        ),
        child: Icon(icon, color: iconColor, size: 22),
      ),
    );
  }

  // ---------------------------------------------------------------------------
  // 3. TITLE & DATE
  // ---------------------------------------------------------------------------

  Widget _buildTitleSection(ThemeData theme) {
    return Padding(
      padding: const EdgeInsets.fromLTRB(20, 24, 20, 0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            _event!.title ?? _event!.name,
            style: theme.textTheme.headlineSmall?.copyWith(
              fontWeight: FontWeight.w800,
              fontSize: 26,
              height: 1.25,
            ),
          ),
          const SizedBox(height: 8),
          Row(
            children: [
              Icon(Icons.calendar_today_outlined,
                  size: 16, color: theme.hintColor),
              const SizedBox(width: 6),
              Text(
                _formattedDateRange(),
                style: theme.textTheme.bodyMedium?.copyWith(
                  color: theme.hintColor,
                  fontSize: 15,
                ),
              ),
            ],
          ),
        ],
      ),
    );
  }

  // ---------------------------------------------------------------------------
  // 4. ABOUT THE EVENT
  // ---------------------------------------------------------------------------

  Widget _buildAboutSection(ThemeData theme) {
    final desc = _event!.description ?? '';
    if (desc.isEmpty) return const SizedBox.shrink();

    return Padding(
      padding: const EdgeInsets.fromLTRB(20, 24, 20, 0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            'About the Event',
            style: theme.textTheme.titleMedium?.copyWith(
              fontWeight: FontWeight.w800,
              fontSize: 20,
            ),
          ),
          const SizedBox(height: 10),
          AnimatedCrossFade(
            firstChild: Text(
              desc,
              maxLines: 4,
              overflow: TextOverflow.ellipsis,
              style: theme.textTheme.bodyMedium?.copyWith(
                height: 1.55,
                color: theme.textTheme.bodyMedium?.color?.withOpacity(0.75),
              ),
            ),
            secondChild: Text(
              desc,
              style: theme.textTheme.bodyMedium?.copyWith(
                height: 1.55,
                color: theme.textTheme.bodyMedium?.color?.withOpacity(0.75),
              ),
            ),
            crossFadeState:
                _aboutExpanded ? CrossFadeState.showSecond : CrossFadeState.showFirst,
            duration: const Duration(milliseconds: 300),
          ),
          const SizedBox(height: 6),
          GestureDetector(
            onTap: () => setState(() => _aboutExpanded = !_aboutExpanded),
            child: Text(
              _aboutExpanded ? 'Read Less' : 'Read More',
              style: TextStyle(
                color: theme.colorScheme.primary,
                fontWeight: FontWeight.w700,
                fontSize: 15,
              ),
            ),
          ),
        ],
      ),
    );
  }

  // ---------------------------------------------------------------------------
  // 5. VENUE LOCATION (Google Map)
  // ---------------------------------------------------------------------------

  Widget _buildVenueSection(ThemeData theme) {
    final lat = _event!.latitude!;
    final lng = _event!.longitude!;
    final venueLabel = _event!.locationName ?? _event!.venueName ?? _event!.place ?? '';

    return Padding(
      padding: const EdgeInsets.fromLTRB(20, 28, 20, 0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            'Venue Location',
            style: theme.textTheme.titleMedium?.copyWith(
              fontWeight: FontWeight.w800,
              fontSize: 20,
            ),
          ),
          const SizedBox(height: 14),

          // Map container
          ClipRRect(
            borderRadius: BorderRadius.circular(20),
            child: SizedBox(
              height: 280,
              child: Stack(
                children: [
                  GoogleMap(
                    initialCameraPosition: CameraPosition(
                      target: LatLng(lat, lng),
                      zoom: 15,
                    ),
                    mapType: _mapType,
                    markers: {
                      Marker(
                        markerId: const MarkerId('event'),
                        position: LatLng(lat, lng),
                        infoWindow: InfoWindow(title: venueLabel),
                      ),
                    },
                    myLocationButtonEnabled: false,
                    zoomControlsEnabled: false,
                    scrollGesturesEnabled: true,
                    rotateGesturesEnabled: false,
                    tiltGesturesEnabled: false,
                    onMapCreated: (c) => _mapController = c,
                  ),

                  // "View larger map" – top left
                  Positioned(
                    top: 10,
                    left: 10,
                    child: GestureDetector(
                      onTap: _viewLargerMap,
                      child: Container(
                        padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 7),
                        decoration: BoxDecoration(
                          color: Colors.white,
                          borderRadius: BorderRadius.circular(8),
                          boxShadow: [
                            BoxShadow(
                              color: Colors.black.withOpacity(0.12),
                              blurRadius: 6,
                            ),
                          ],
                        ),
                        child: Text(
                          'View larger map',
                          style: TextStyle(
                            color: theme.colorScheme.primary,
                            fontWeight: FontWeight.w600,
                            fontSize: 13,
                          ),
                        ),
                      ),
                    ),
                  ),

                  // Map type toggle – bottom left
                  Positioned(
                    bottom: 12,
                    left: 12,
                    child: _mapControlButton(
                      icon: _mapType == MapType.normal
                          ? Icons.satellite_alt
                          : Icons.map_outlined,
                      onTap: () {
                        setState(() {
                          _mapType = _mapType == MapType.normal
                              ? MapType.satellite
                              : MapType.normal;
                        });
                      },
                    ),
                  ),

                  // Map controls toggle – bottom right
                  Positioned(
                    bottom: 12,
                    right: 12,
                    child: _mapControlButton(
                      icon: Icons.open_with_rounded,
                      onTap: () => setState(() => _showMapControls = !_showMapControls),
                    ),
                  ),

                  // Directional pad overlay
                  if (_showMapControls)
                    Positioned.fill(
                      child: Container(
                        decoration: BoxDecoration(
                          color: Colors.black.withOpacity(0.25),
                          borderRadius: BorderRadius.circular(20),
                        ),
                        child: Column(
                          mainAxisAlignment: MainAxisAlignment.center,
                          children: [
                            // Top row: Up + Zoom In
                            Row(
                              mainAxisAlignment: MainAxisAlignment.center,
                              children: [
                                _mapControlButton(
                                    icon: Icons.keyboard_arrow_up,
                                    onTap: () => _moveCamera(1, 0)),
                                const SizedBox(width: 16),
                                _mapControlButton(
                                    icon: Icons.add,
                                    onTap: () => _zoom(1)),
                              ],
                            ),
                            const SizedBox(height: 10),
                            // Middle row: Left + Right
                            Row(
                              mainAxisAlignment: MainAxisAlignment.center,
                              children: [
                                _mapControlButton(
                                    icon: Icons.keyboard_arrow_left,
                                    onTap: () => _moveCamera(0, -1)),
                                const SizedBox(width: 60),
                                _mapControlButton(
                                    icon: Icons.keyboard_arrow_right,
                                    onTap: () => _moveCamera(0, 1)),
                              ],
                            ),
                            const SizedBox(height: 10),
                            // Bottom row: Down + Zoom Out + Close
                            Row(
                              mainAxisAlignment: MainAxisAlignment.center,
                              children: [
                                _mapControlButton(
                                    icon: Icons.keyboard_arrow_down,
                                    onTap: () => _moveCamera(-1, 0)),
                                const SizedBox(width: 16),
                                _mapControlButton(
                                    icon: Icons.remove,
                                    onTap: () => _zoom(-1)),
                                const SizedBox(width: 16),
                                _mapControlButton(
                                    icon: Icons.close,
                                    onTap: () =>
                                        setState(() => _showMapControls = false)),
                              ],
                            ),
                          ],
                        ),
                      ),
                    ),
                ],
              ),
            ),
          ),

          // Venue name card
          if (venueLabel.isNotEmpty)
            Container(
              width: double.infinity,
              margin: const EdgeInsets.only(top: 14),
              padding: const EdgeInsets.all(16),
              decoration: BoxDecoration(
                color: theme.cardColor,
                borderRadius: BorderRadius.circular(16),
                boxShadow: [
                  BoxShadow(
                    color: theme.shadowColor.withOpacity(0.06),
                    blurRadius: 12,
                    offset: const Offset(0, 4),
                  ),
                ],
              ),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Text(
                    venueLabel,
                    style: theme.textTheme.titleMedium?.copyWith(
                      fontWeight: FontWeight.bold,
                    ),
                  ),
                  if (_event!.place != null && _event!.place != venueLabel)
                    Padding(
                      padding: const EdgeInsets.only(top: 4),
                      child: Text(
                        _event!.place!,
                        style: theme.textTheme.bodyMedium?.copyWith(
                          color: theme.hintColor,
                        ),
                      ),
                    ),
                ],
              ),
            ),
        ],
      ),
    );
  }

  Widget _mapControlButton({
    required IconData icon,
    required VoidCallback onTap,
  }) {
    return GestureDetector(
      onTap: onTap,
      child: Container(
        width: 44,
        height: 44,
        decoration: BoxDecoration(
          color: Colors.white.withOpacity(0.92),
          shape: BoxShape.circle,
          boxShadow: [
            BoxShadow(
              color: Colors.black.withOpacity(0.15),
              blurRadius: 6,
            ),
          ],
        ),
        child: Icon(icon, color: Colors.grey.shade700, size: 22),
      ),
    );
  }

  // ---------------------------------------------------------------------------
  // 6. GET DIRECTIONS BUTTON
  // ---------------------------------------------------------------------------

  Widget _buildGetDirectionsButton(ThemeData theme) {
    return Padding(
      padding: const EdgeInsets.fromLTRB(20, 18, 20, 0),
      child: SizedBox(
        width: double.infinity,
        height: 54,
        child: ElevatedButton.icon(
          onPressed: _getDirections,
          style: ElevatedButton.styleFrom(
            backgroundColor: theme.colorScheme.primary,
            foregroundColor: Colors.white,
            shape: RoundedRectangleBorder(
              borderRadius: BorderRadius.circular(16),
            ),
            elevation: 2,
          ),
          icon: const Icon(Icons.directions, size: 22),
          label: const Text(
            'Get Directions',
            style: TextStyle(fontSize: 16, fontWeight: FontWeight.w700),
          ),
        ),
      ),
    );
  }

  // ---------------------------------------------------------------------------
  // 7. IMPORTANT INFORMATION (structured list)
  // ---------------------------------------------------------------------------

  Widget _buildImportantInfoSection(ThemeData theme) {
    return Padding(
      padding: const EdgeInsets.fromLTRB(20, 28, 20, 0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            'Important Information',
            style: theme.textTheme.titleMedium?.copyWith(
              fontWeight: FontWeight.w800,
              fontSize: 20,
            ),
          ),
          const SizedBox(height: 14),
          for (final info in _event!.importantInfo)
            Container(
              width: double.infinity,
              margin: const EdgeInsets.only(bottom: 12),
              padding: const EdgeInsets.all(16),
              decoration: BoxDecoration(
                color: theme.colorScheme.primary.withOpacity(0.05),
                borderRadius: BorderRadius.circular(16),
                border: Border.all(
                  color: theme.colorScheme.primary.withOpacity(0.12),
                ),
              ),
              child: Row(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Container(
                    width: 36,
                    height: 36,
                    decoration: BoxDecoration(
                      color: theme.colorScheme.primary.withOpacity(0.1),
                      borderRadius: BorderRadius.circular(10),
                    ),
                    child: Icon(Icons.info_outline,
                        size: 20, color: theme.colorScheme.primary),
                  ),
                  const SizedBox(width: 14),
                  Expanded(
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Text(
                          info['title'] ?? '',
                          style: theme.textTheme.bodyLarge?.copyWith(
                            fontWeight: FontWeight.w700,
                          ),
                        ),
                        const SizedBox(height: 4),
                        Text(
                          info['value'] ?? '',
                          style: theme.textTheme.bodyMedium?.copyWith(
                            color: theme.hintColor,
                            height: 1.4,
                          ),
                        ),
                      ],
                    ),
                  ),
                ],
              ),
            ),
        ],
      ),
    );
  }

  // ---------------------------------------------------------------------------
  // 7b. IMPORTANT INFO FALLBACK (parse HTML string into cards)
  // ---------------------------------------------------------------------------

  /// Strip HTML tags and decode common HTML entities
  String _stripHtml(String html) {
    // Remove all HTML tags
    var text = html.replaceAll(RegExp(r'<[^>]*>'), '');
    // Decode common HTML entities
    text = text
        .replaceAll('&amp;', '&')
        .replaceAll('&lt;', '<')
        .replaceAll('&gt;', '>')
        .replaceAll('&quot;', '"')
        .replaceAll('&#39;', "'")
        .replaceAll('&nbsp;', ' ');
    return text.trim();
  }

  /// Parse an HTML important_information string into a list of {title, value} maps
  List<Map<String, String>> _parseHtmlImportantInfo(String raw) {
    // Strip HTML tags, preserving <br> as a newline separator first
    var text = raw
        .replaceAll(RegExp(r'<br\s*/?>', caseSensitive: false), '\n')
        .replaceAll(RegExp(r'<[^>]*>'), '');
    // Decode entities
    text = text
        .replaceAll('&amp;', '&')
        .replaceAll('&lt;', '<')
        .replaceAll('&gt;', '>')
        .replaceAll('&quot;', '"')
        .replaceAll('&#39;', "'")
        .replaceAll('&nbsp;', ' ');

    // Split by newlines first
    var lines = text
        .split('\n')
        .map((l) => l.trim())
        .where((l) => l.isNotEmpty)
        .toList();

    // If we only have 1 line, items might be separated by emoji characters
    // (some categories don't use <br> between items, e.g. "...etc.🚌 Bus:")
    if (lines.length <= 1 && text.trim().isNotEmpty) {
      final parts = text.trim().split(
        RegExp(r'(?=[\u2600-\u27BF]|[\u{1F300}-\u{1FFFF}])', unicode: true),
      );
      final emojiLines = parts
          .map((l) => l.trim())
          .where((l) => l.isNotEmpty)
          .toList();
      if (emojiLines.length > 1) {
        lines = emojiLines;
      }
    }

    final items = <Map<String, String>>[];
    for (final line in lines) {
      // Split on first colon to get title:value
      final colonIdx = line.indexOf(':');
      if (colonIdx > 0 && colonIdx < line.length - 1) {
        items.add({
          'title': line.substring(0, colonIdx + 1).trim(),
          'value': line.substring(colonIdx + 1).trim(),
        });
      } else {
        items.add({'title': line, 'value': ''});
      }
    }
    return items;
  }

  Widget _buildImportantInfoFallback(ThemeData theme) {
    final parsed = _parseHtmlImportantInfo(_event!.importantInformation!);

    if (parsed.isEmpty) return const SizedBox.shrink();

    return Padding(
      padding: const EdgeInsets.fromLTRB(20, 28, 20, 0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            'Important Information',
            style: theme.textTheme.titleMedium?.copyWith(
              fontWeight: FontWeight.w800,
              fontSize: 20,
            ),
          ),
          const SizedBox(height: 14),
          for (final info in parsed)
            Container(
              width: double.infinity,
              margin: const EdgeInsets.only(bottom: 12),
              padding: const EdgeInsets.all(16),
              decoration: BoxDecoration(
                color: theme.colorScheme.primary.withOpacity(0.05),
                borderRadius: BorderRadius.circular(16),
                border: Border.all(
                  color: theme.colorScheme.primary.withOpacity(0.12),
                ),
              ),
              child: Row(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Container(
                    width: 36,
                    height: 36,
                    decoration: BoxDecoration(
                      color: theme.colorScheme.primary.withOpacity(0.1),
                      borderRadius: BorderRadius.circular(10),
                    ),
                    child: Icon(Icons.info_outline,
                        size: 20, color: theme.colorScheme.primary),
                  ),
                  const SizedBox(width: 14),
                  Expanded(
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Text(
                          info['title'] ?? '',
                          style: theme.textTheme.bodyLarge?.copyWith(
                            fontWeight: FontWeight.w700,
                          ),
                        ),
                        if ((info['value'] ?? '').isNotEmpty) ...[
                          const SizedBox(height: 4),
                          Text(
                            info['value']!,
                            style: theme.textTheme.bodyMedium?.copyWith(
                              color: theme.hintColor,
                              height: 1.4,
                            ),
                          ),
                        ],
                      ],
                    ),
                  ),
                ],
              ),
            ),
        ],
      ),
    );
  }
}