import 'package:flutter/material.dart';
import '../../../../common/theme/theme.dart';
import '../../../../domain/customer/customer.dart';
import '../../../components/spacer/spacer.dart';

class CustomerCard extends StatelessWidget {
  final Customer customer;
  final VoidCallback? onTap;
  final VoidCallback? onLongPress;

  const CustomerCard({
    super.key,
    required this.customer,
    this.onTap,
    this.onLongPress,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      decoration: BoxDecoration(
        color: AppColor.white,
        borderRadius: BorderRadius.circular(20),
        boxShadow: [
          BoxShadow(
            color: Colors.black.withOpacity(0.06),
            blurRadius: 20,
            offset: const Offset(0, 6),
            spreadRadius: -4,
          ),
        ],
        border: Border.all(
          color: customer.isActive
              ? AppColor.primary.withOpacity(0.1)
              : Colors.grey.withOpacity(0.08),
          width: 1.5,
        ),
      ),
      child: Material(
        color: Colors.transparent,
        child: InkWell(
          onTap: onTap,
          onLongPress: onLongPress,
          borderRadius: BorderRadius.circular(20),
          child: Padding(
            padding: const EdgeInsets.all(20),
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                // Avatar with status indicator
                Stack(
                  children: [
                    Container(
                      decoration: BoxDecoration(
                        shape: BoxShape.circle,
                        gradient: LinearGradient(
                          begin: Alignment.topLeft,
                          end: Alignment.bottomRight,
                          colors: [
                            _getAvatarColor(customer.name),
                            _getAvatarColor(customer.name).withOpacity(0.8),
                          ],
                        ),
                        boxShadow: [
                          BoxShadow(
                            color: _getAvatarColor(
                              customer.name,
                            ).withOpacity(0.3),
                            blurRadius: 12,
                            offset: const Offset(0, 4),
                          ),
                        ],
                      ),
                      child: CircleAvatar(
                        backgroundColor: Colors.transparent,
                        radius: 32,
                        child: Text(
                          customer.name.isNotEmpty
                              ? customer.name[0].toUpperCase()
                              : '?',
                          style: AppStyle.xxl.copyWith(
                            color: AppColor.white,
                            fontWeight: FontWeight.bold,
                          ),
                        ),
                      ),
                    ),

                    // Status indicator
                    Positioned(
                      bottom: 2,
                      right: 2,
                      child: Container(
                        width: 20,
                        height: 20,
                        decoration: BoxDecoration(
                          color: customer.isActive
                              ? AppColor.success
                              : AppColor.error,
                          shape: BoxShape.circle,
                          border: Border.all(color: AppColor.white, width: 3),
                          boxShadow: [
                            BoxShadow(
                              color: Colors.black.withOpacity(0.1),
                              blurRadius: 4,
                              offset: const Offset(0, 2),
                            ),
                          ],
                        ),
                      ),
                    ),

                    // Default badge
                    if (customer.isDefault)
                      Positioned(
                        top: -2,
                        left: -8,
                        child: Container(
                          padding: const EdgeInsets.symmetric(
                            horizontal: 6,
                            vertical: 2,
                          ),
                          decoration: BoxDecoration(
                            color: AppColor.primary,
                            borderRadius: BorderRadius.circular(8),
                            boxShadow: [
                              BoxShadow(
                                color: AppColor.primary.withOpacity(0.3),
                                blurRadius: 4,
                                offset: const Offset(0, 2),
                              ),
                            ],
                          ),
                          child: Text(
                            '⭐',
                            style: AppStyle.xs.copyWith(
                              color: AppColor.white,
                              fontWeight: FontWeight.bold,
                            ),
                          ),
                        ),
                      ),
                  ],
                ),

                const SpaceHeight(16),

                // Customer Name
                Text(
                  customer.name.isNotEmpty ? customer.name : 'Unknown Customer',
                  style: AppStyle.lg.copyWith(
                    fontWeight: FontWeight.bold,
                    color: AppColor.textPrimary,
                  ),
                  textAlign: TextAlign.center,
                  maxLines: 2,
                  overflow: TextOverflow.ellipsis,
                ),

                const SpaceHeight(8),

                // Contact Info
                if (customer.email.isNotEmpty || customer.phone.isNotEmpty) ...[
                  Column(
                    children: [
                      if (customer.email.isNotEmpty)
                        _buildContactInfo(Icons.email_outlined, customer.email),
                      if (customer.email.isNotEmpty &&
                          customer.phone.isNotEmpty)
                        const SpaceHeight(4),
                      if (customer.phone.isNotEmpty)
                        _buildContactInfo(Icons.phone_outlined, customer.phone),
                    ],
                  ),
                  const SpaceHeight(12),
                ],

                // Status Badge
                Container(
                  padding: const EdgeInsets.symmetric(
                    horizontal: 12,
                    vertical: 6,
                  ),
                  decoration: BoxDecoration(
                    color: customer.isActive
                        ? AppColor.success.withOpacity(0.1)
                        : AppColor.error.withOpacity(0.1),
                    borderRadius: BorderRadius.circular(16),
                    border: Border.all(
                      color: customer.isActive
                          ? AppColor.success.withOpacity(0.3)
                          : AppColor.error.withOpacity(0.3),
                      width: 1,
                    ),
                  ),
                  child: Row(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      Container(
                        width: 8,
                        height: 8,
                        decoration: BoxDecoration(
                          color: customer.isActive
                              ? AppColor.success
                              : AppColor.error,
                          shape: BoxShape.circle,
                        ),
                      ),
                      const SpaceWidth(6),
                      Text(
                        customer.isActive ? 'Active' : 'Inactive',
                        style: AppStyle.sm.copyWith(
                          color: customer.isActive
                              ? AppColor.success
                              : AppColor.error,
                          fontWeight: FontWeight.w600,
                        ),
                      ),
                    ],
                  ),
                ),

                // Additional info if available
                if (customer.address.isNotEmpty) ...[
                  const SpaceHeight(8),
                  Row(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      Icon(
                        Icons.location_on_outlined,
                        size: 14,
                        color: AppColor.textSecondary,
                      ),
                      const SpaceWidth(4),
                      Flexible(
                        child: Text(
                          customer.address,
                          style: AppStyle.xs.copyWith(
                            color: AppColor.textSecondary,
                          ),
                          textAlign: TextAlign.center,
                          maxLines: 1,
                          overflow: TextOverflow.ellipsis,
                        ),
                      ),
                    ],
                  ),
                ],

                // Metadata info
                if (customer.metadata.isNotEmpty && _hasRelevantMetadata()) ...[
                  const SpaceHeight(8),
                  Container(
                    padding: const EdgeInsets.symmetric(
                      horizontal: 8,
                      vertical: 4,
                    ),
                    decoration: BoxDecoration(
                      color: AppColor.primary.withOpacity(0.1),
                      borderRadius: BorderRadius.circular(12),
                    ),
                    child: Row(
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        Icon(
                          Icons.star_outline,
                          size: 12,
                          color: AppColor.primary,
                        ),
                        const SpaceWidth(4),
                        Text(
                          _getMetadataInfo(),
                          style: AppStyle.xs.copyWith(
                            color: AppColor.primary,
                            fontWeight: FontWeight.w500,
                          ),
                        ),
                      ],
                    ),
                  ),
                ],

                // Join date
                if (customer.createdAt.isNotEmpty) ...[
                  const SpaceHeight(8),
                  Text(
                    'Joined ${_formatDate(customer.createdAt)}',
                    style: AppStyle.xs.copyWith(color: AppColor.textSecondary),
                    textAlign: TextAlign.center,
                  ),
                ],
              ],
            ),
          ),
        ),
      ),
    );
  }

  Widget _buildContactInfo(IconData icon, String text) {
    return Row(
      mainAxisSize: MainAxisSize.min,
      children: [
        Icon(icon, size: 14, color: AppColor.textSecondary),
        const SpaceWidth(6),
        Flexible(
          child: Text(
            text,
            style: AppStyle.sm.copyWith(color: AppColor.textSecondary),
            textAlign: TextAlign.center,
            maxLines: 1,
            overflow: TextOverflow.ellipsis,
          ),
        ),
      ],
    );
  }

  Color _getAvatarColor(String name) {
    final colors = [
      AppColor.primary,
      const Color(0xFF9C27B0), // Purple
      const Color(0xFFFF9800), // Orange
      const Color(0xFF607D8B), // Blue Grey
      const Color(0xFF795548), // Brown
      const Color(0xFF4CAF50), // Green
      const Color(0xFF2196F3), // Blue
      const Color(0xFFE91E63), // Pink
      const Color(0xFF00BCD4), // Cyan
      const Color(0xFFFF5722), // Deep Orange
    ];

    if (name.isEmpty) return AppColor.primary;
    final index = name.hashCode.abs() % colors.length;
    return colors[index];
  }

  String _formatDate(String dateStr) {
    try {
      final date = DateTime.parse(dateStr);
      final now = DateTime.now();
      final difference = now.difference(date).inDays;

      if (difference == 0) {
        return 'today';
      } else if (difference == 1) {
        return 'yesterday';
      } else if (difference < 30) {
        return '${difference}d ago';
      } else if (difference < 365) {
        final months = (difference / 30).floor();
        return '${months}mo ago';
      } else {
        final years = (difference / 365).floor();
        return '${years}y ago';
      }
    } catch (e) {
      return dateStr;
    }
  }

  bool _hasRelevantMetadata() {
    return customer.metadata.containsKey('notes') ||
        customer.metadata.containsKey('tags') ||
        customer.metadata.containsKey('source') ||
        customer.metadata.containsKey('preferences') ||
        customer.metadata.containsKey('vip') ||
        customer.metadata.containsKey('tier');
  }

  String _getMetadataInfo() {
    if (customer.metadata.containsKey('vip') &&
        customer.metadata['vip'] == true) {
      return 'VIP';
    }
    if (customer.metadata.containsKey('tier')) {
      return customer.metadata['tier'].toString();
    }
    if (customer.metadata.containsKey('tags')) {
      final tags = customer.metadata['tags'];
      if (tags is List && tags.isNotEmpty) {
        return tags.first.toString();
      }
    }
    if (customer.metadata.containsKey('source')) {
      return customer.metadata['source'].toString();
    }
    return 'Special';
  }
}