import 'package:flutter/material.dart';
import 'package:geosector_app/core/theme/app_theme.dart';
import 'package:geosector_app/chat/chat_module.dart';
import 'package:geosector_app/chat/pages/rooms_page_embedded.dart';
import 'package:geosector_app/core/services/current_user_service.dart';
import 'package:geosector_app/core/services/api_service.dart';
import 'package:geosector_app/core/services/current_amicale_service.dart';

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

  @override
  State<AdminCommunicationPage> createState() => _AdminCommunicationPageState();
}

class _AdminCommunicationPageState extends State<AdminCommunicationPage> {
  bool _isChatInitialized = false;
  bool _isInitializing = false;
  String? _initError;
  GlobalKey<RoomsPageEmbeddedState>? _roomsPageKey;

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

  Future<void> _initializeChat() async {
    if (_isInitializing) return;
    
    setState(() {
      _isInitializing = true;
      _initError = null;
    });

    try {
      // Récupérer les informations utilisateur
      final currentUser = CurrentUserService.instance;
      final apiService = ApiService.instance;
      final currentAmicale = CurrentAmicaleService.instance.currentAmicale;
      
      if (currentUser.currentUser == null) {
        throw Exception('Administrateur non connecté');
      }

      // Initialiser le module chat avec les informations de l'administrateur
      await ChatModule.init(
        apiUrl: apiService.baseUrl,
        userId: currentUser.currentUser!.id,
        userName: currentUser.userName ?? currentUser.userEmail ?? 'Administrateur',
        userRole: currentUser.currentUser!.role,
        userEntite: currentUser.fkEntite ?? currentAmicale?.id,
        authToken: currentUser.sessionId,
      );

      setState(() {
        _isChatInitialized = true;
        _isInitializing = false;
        _roomsPageKey = GlobalKey<RoomsPageEmbeddedState>();
      });
    } catch (e) {
      setState(() {
        _initError = e.toString();
        _isInitializing = false;
      });
      debugPrint('Erreur initialisation chat admin: $e');
    }
  }

  void _refreshRooms() {
    _roomsPageKey?.currentState?.refresh();
  }

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    
    return Container(
      margin: const EdgeInsets.all(16.0),
      decoration: BoxDecoration(
        color: theme.colorScheme.surface,
        borderRadius: BorderRadius.circular(24),
        boxShadow: [
          BoxShadow(
            color: theme.shadowColor.withOpacity(0.1),
            blurRadius: 20,
            spreadRadius: 1,
            offset: const Offset(0, 4),
          ),
        ],
      ),
      child: ClipRRect(
        borderRadius: BorderRadius.circular(24),
        child: _buildContent(theme),
      ),
    );
  }

  Widget _buildContent(ThemeData theme) {
    if (_isInitializing) {
      return Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            const CircularProgressIndicator(),
            const SizedBox(height: 16),
            Text(
              'Initialisation du chat administrateur...',
              style: theme.textTheme.bodyLarge,
            ),
          ],
        ),
      );
    }

    if (_initError != null) {
      return Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Icon(
              Icons.error_outline,
              size: 64,
              color: theme.colorScheme.error,
            ),
            const SizedBox(height: 16),
            Text(
              'Erreur d\'initialisation chat',
              style: theme.textTheme.headlineSmall?.copyWith(
                color: theme.colorScheme.error,
              ),
            ),
            const SizedBox(height: 8),
            Text(
              _initError!,
              style: theme.textTheme.bodyMedium,
              textAlign: TextAlign.center,
            ),
            const SizedBox(height: 24),
            ElevatedButton.icon(
              onPressed: _initializeChat,
              icon: const Icon(Icons.refresh),
              label: const Text('Réessayer'),
              style: ElevatedButton.styleFrom(
                backgroundColor: theme.colorScheme.error,
                foregroundColor: Colors.white,
              ),
            ),
          ],
        ),
      );
    }

    if (_isChatInitialized) {
      // Afficher le module chat avec un header simplifié
      return Column(
        children: [
          // En-tête simplifié avec boutons intégrés
          Container(
            height: 60,
            padding: const EdgeInsets.symmetric(horizontal: 20),
            decoration: BoxDecoration(
              color: Colors.red.shade50,
              border: Border(
                bottom: BorderSide(
                  color: theme.dividerColor.withOpacity(0.1),
                  width: 1,
                ),
              ),
            ),
            child: Row(
              children: [
                Icon(
                  Icons.admin_panel_settings,
                  color: Colors.red.shade600,
                  size: 24,
                ),
                const SizedBox(width: 12),
                Text(
                  'Messages Administration',
                  style: theme.textTheme.titleLarge?.copyWith(
                    fontWeight: FontWeight.w600,
                    color: Colors.red.shade600,
                  ),
                ),
                const Spacer(),
                // Boutons d'action
                IconButton(
                  icon: Icon(Icons.add, color: Colors.red.shade600),
                  onPressed: () {
                    // Déclencher la création d'une nouvelle conversation
                    // Cela sera géré par RoomsPageEmbedded
                    _roomsPageKey?.currentState?.createNewConversation();
                  },
                  tooltip: 'Nouvelle conversation',
                ),
                IconButton(
                  icon: Icon(Icons.refresh, color: Colors.red.shade600),
                  onPressed: _refreshRooms,
                  tooltip: 'Actualiser',
                ),
              ],
            ),
          ),
          
          // Module chat sans AppBar
          Expanded(
            child: RoomsPageEmbedded(
              key: _roomsPageKey,
              onRefreshPressed: () {
                // Callback optionnel après refresh
                debugPrint('Conversations actualisées');
              },
            ),
          ),
        ],
      );
    }

    // État initial
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Icon(
            Icons.chat_bubble_outline,
            size: 80,
            color: theme.colorScheme.primary.withOpacity(0.3),
          ),
          const SizedBox(height: 24),
          Text(
            'Chat administrateur non initialisé',
            style: theme.textTheme.titleLarge?.copyWith(
              color: theme.colorScheme.onSurface.withOpacity(0.5),
            ),
          ),
          const SizedBox(height: 16),
          ElevatedButton.icon(
            onPressed: _initializeChat,
            icon: const Icon(Icons.power_settings_new),
            label: const Text('Initialiser le chat'),
            style: ElevatedButton.styleFrom(
              backgroundColor: Colors.red,
              foregroundColor: Colors.white,
            ),
          ),
        ],
      ),
    );
  }
}