import 'package:flutter/material.dart';
import '../../../../core/widgets/unified_card.dart';
import '../../../../core/theme/app_colors.dart';
import '../../../../core/theme/app_text_styles.dart';

/// Widget d'affichage des statistiques de notifications
class NotificationStatsWidget extends StatelessWidget {
  final int totalCount;
  final int unreadCount;
  final int importantCount;

  const NotificationStatsWidget({
    super.key,
    required this.totalCount,
    required this.unreadCount,
    required this.importantCount,
  });

  @override
  Widget build(BuildContext context) {
    return UnifiedCard(
      variant: UnifiedCardVariant.filled,
      child: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Row(
          children: [
            // Statistique principale - Non lues
            Expanded(
              child: _buildStatItem(
                icon: Icons.mark_email_unread,
                label: 'Non lues',
                value: unreadCount.toString(),
                color: unreadCount > 0 ? AppColors.primary : AppColors.onSurface.withOpacity(0.6),
                isHighlighted: unreadCount > 0,
              ),
            ),
            
            // Séparateur
            Container(
              width: 1,
              height: 40,
              color: AppColors.outline.withOpacity(0.2),
            ),
            
            // Statistique secondaire - Importantes
            Expanded(
              child: _buildStatItem(
                icon: Icons.star,
                label: 'Importantes',
                value: importantCount.toString(),
                color: importantCount > 0 ? AppColors.warning : AppColors.onSurface.withOpacity(0.6),
                isHighlighted: importantCount > 0,
              ),
            ),
            
            // Séparateur
            Container(
              width: 1,
              height: 40,
              color: AppColors.outline.withOpacity(0.2),
            ),
            
            // Statistique tertiaire - Total
            Expanded(
              child: _buildStatItem(
                icon: Icons.notifications,
                label: 'Total',
                value: totalCount.toString(),
                color: AppColors.onSurface.withOpacity(0.8),
                isHighlighted: false,
              ),
            ),
          ],
        ),
      ),
    );
  }

  Widget _buildStatItem({
    required IconData icon,
    required String label,
    required String value,
    required Color color,
    required bool isHighlighted,
  }) {
    return Column(
      mainAxisSize: MainAxisSize.min,
      children: [
        // Icône avec badge si mis en évidence
        Stack(
          clipBehavior: Clip.none,
          children: [
            Container(
              width: 32,
              height: 32,
              decoration: BoxDecoration(
                color: color.withOpacity(0.1),
                borderRadius: BorderRadius.circular(8),
              ),
              child: Icon(
                icon,
                color: color,
                size: 18,
              ),
            ),
            
            if (isHighlighted && value != '0')
              Positioned(
                right: -4,
                top: -4,
                child: Container(
                  width: 12,
                  height: 12,
                  decoration: BoxDecoration(
                    color: color,
                    shape: BoxShape.circle,
                    border: Border.all(
                      color: AppColors.surface,
                      width: 2,
                    ),
                  ),
                ),
              ),
          ],
        ),
        
        const SizedBox(height: 8),
        
        // Valeur
        Text(
          value,
          style: AppTextStyles.titleMedium.copyWith(
            color: color,
            fontWeight: isHighlighted ? FontWeight.w700 : FontWeight.w600,
          ),
        ),
        
        const SizedBox(height: 2),
        
        // Label
        Text(
          label,
          style: AppTextStyles.labelSmall.copyWith(
            color: AppColors.onSurface.withOpacity(0.7),
          ),
          textAlign: TextAlign.center,
        ),
      ],
    );
  }
}

/// Widget d'affichage des statistiques détaillées
class DetailedNotificationStatsWidget extends StatelessWidget {
  final Map<String, dynamic> stats;

  const DetailedNotificationStatsWidget({
    super.key,
    required this.stats,
  });

  @override
  Widget build(BuildContext context) {
    final totalNotifications = stats['total'] ?? 0;
    final unreadNotifications = stats['unread'] ?? 0;
    final importantNotifications = stats['important'] ?? 0;
    final archivedNotifications = stats['archived'] ?? 0;
    final todayNotifications = stats['today'] ?? 0;
    final weekNotifications = stats['week'] ?? 0;
    final engagementRate = stats['engagement_rate'] ?? 0.0;

    return UnifiedCard(
      variant: UnifiedCardVariant.outlined,
      child: Padding(
        padding: const EdgeInsets.all(20.0),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            // En-tête
            Row(
              children: [
                Icon(
                  Icons.analytics,
                  color: AppColors.primary,
                  size: 24,
                ),
                const SizedBox(width: 12),
                Text(
                  'Statistiques détaillées',
                  style: AppTextStyles.titleMedium.copyWith(
                    fontWeight: FontWeight.w600,
                  ),
                ),
              ],
            ),
            
            const SizedBox(height: 20),
            
            // Grille de statistiques
            GridView.count(
              crossAxisCount: 2,
              shrinkWrap: true,
              physics: const NeverScrollableScrollPhysics(),
              childAspectRatio: 2.5,
              mainAxisSpacing: 16,
              crossAxisSpacing: 16,
              children: [
                _buildDetailedStatCard(
                  'Total',
                  totalNotifications.toString(),
                  Icons.notifications,
                  AppColors.primary,
                ),
                _buildDetailedStatCard(
                  'Non lues',
                  unreadNotifications.toString(),
                  Icons.mark_email_unread,
                  AppColors.warning,
                ),
                _buildDetailedStatCard(
                  'Importantes',
                  importantNotifications.toString(),
                  Icons.star,
                  AppColors.error,
                ),
                _buildDetailedStatCard(
                  'Archivées',
                  archivedNotifications.toString(),
                  Icons.archive,
                  AppColors.onSurface.withOpacity(0.6),
                ),
              ],
            ),
            
            const SizedBox(height: 20),
            
            // Statistiques temporelles
            Row(
              children: [
                Expanded(
                  child: _buildTimeStatCard(
                    'Aujourd\'hui',
                    todayNotifications.toString(),
                    Icons.today,
                  ),
                ),
                const SizedBox(width: 16),
                Expanded(
                  child: _buildTimeStatCard(
                    'Cette semaine',
                    weekNotifications.toString(),
                    Icons.date_range,
                  ),
                ),
              ],
            ),
            
            const SizedBox(height: 20),
            
            // Taux d'engagement
            Container(
              padding: const EdgeInsets.all(16),
              decoration: BoxDecoration(
                color: AppColors.primaryContainer.withOpacity(0.3),
                borderRadius: BorderRadius.circular(12),
                border: Border.all(
                  color: AppColors.primary.withOpacity(0.2),
                ),
              ),
              child: Row(
                children: [
                  Icon(
                    Icons.trending_up,
                    color: AppColors.primary,
                    size: 20,
                  ),
                  const SizedBox(width: 12),
                  Expanded(
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Text(
                          'Taux d\'engagement',
                          style: AppTextStyles.labelMedium.copyWith(
                            color: AppColors.primary,
                            fontWeight: FontWeight.w500,
                          ),
                        ),
                        const SizedBox(height: 2),
                        Text(
                          'Pourcentage de notifications ouvertes',
                          style: AppTextStyles.bodySmall.copyWith(
                            color: AppColors.onSurface.withOpacity(0.7),
                          ),
                        ),
                      ],
                    ),
                  ),
                  Text(
                    '${engagementRate.toStringAsFixed(1)}%',
                    style: AppTextStyles.titleMedium.copyWith(
                      color: AppColors.primary,
                      fontWeight: FontWeight.w700,
                    ),
                  ),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }

  Widget _buildDetailedStatCard(
    String label,
    String value,
    IconData icon,
    Color color,
  ) {
    return Container(
      padding: const EdgeInsets.all(12),
      decoration: BoxDecoration(
        color: color.withOpacity(0.05),
        borderRadius: BorderRadius.circular(8),
        border: Border.all(
          color: color.withOpacity(0.2),
        ),
      ),
      child: Row(
        children: [
          Icon(
            icon,
            color: color,
            size: 20,
          ),
          const SizedBox(width: 8),
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Text(
                  value,
                  style: AppTextStyles.titleSmall.copyWith(
                    color: color,
                    fontWeight: FontWeight.w700,
                  ),
                ),
                Text(
                  label,
                  style: AppTextStyles.labelSmall.copyWith(
                    color: AppColors.onSurface.withOpacity(0.7),
                  ),
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }

  Widget _buildTimeStatCard(String label, String value, IconData icon) {
    return Container(
      padding: const EdgeInsets.all(12),
      decoration: BoxDecoration(
        color: AppColors.surfaceVariant.withOpacity(0.5),
        borderRadius: BorderRadius.circular(8),
        border: Border.all(
          color: AppColors.outline.withOpacity(0.2),
        ),
      ),
      child: Column(
        children: [
          Icon(
            icon,
            color: AppColors.onSurfaceVariant,
            size: 20,
          ),
          const SizedBox(height: 8),
          Text(
            value,
            style: AppTextStyles.titleSmall.copyWith(
              fontWeight: FontWeight.w600,
            ),
          ),
          const SizedBox(height: 2),
          Text(
            label,
            style: AppTextStyles.labelSmall.copyWith(
              color: AppColors.onSurface.withOpacity(0.7),
            ),
            textAlign: TextAlign.center,
          ),
        ],
      ),
    );
  }
}