/// Widget: Member Card Widget
///
/// Displays a user's membership card with tier-specific styling.
/// Shows member information, points, QR code, and tier badge.
///
/// Supports three tiers: Diamond, Platinum, Gold
library;

import 'package:flutter/material.dart';
import 'package:qr_flutter/qr_flutter.dart';
import 'package:worker/core/theme/colors.dart';
import 'package:worker/features/home/domain/entities/member_card.dart';

/// Member Card Widget
///
/// Renders a beautiful gradient card displaying member information.
/// The gradient and styling changes based on the membership tier.
class MemberCardWidget extends StatelessWidget {
  /// Member card data
  final MemberCard memberCard;

  const MemberCardWidget({
    super.key,
    required this.memberCard,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      margin: const EdgeInsets.all(16),
      height: 200,
      decoration: BoxDecoration(
        gradient: _getGradientForTier(memberCard.tier),
        borderRadius: BorderRadius.circular(16),
        boxShadow: [
          BoxShadow(
            color: Colors.black.withOpacity(0.2),
            blurRadius: 10,
            offset: const Offset(0, 4),
          ),
        ],
      ),
      child: Padding(
        padding: const EdgeInsets.all(20),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            // Header Row: Branding and Valid Until
            Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                // Branding
                Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    const Text(
                      'EUROTILE',
                      style: TextStyle(
                        color: Colors.white,
                        fontSize: 24,
                        fontWeight: FontWeight.bold,
                        letterSpacing: 1.2,
                      ),
                    ),
                    const SizedBox(height: 4),
                    Text(
                      memberCard.memberType.displayName,
                      style: TextStyle(
                        color: Colors.white.withOpacity(0.9),
                        fontSize: 11,
                        fontWeight: FontWeight.w500,
                        letterSpacing: 0.8,
                      ),
                    ),
                  ],
                ),
                // Valid Until
                Column(
                  crossAxisAlignment: CrossAxisAlignment.end,
                  children: [
                    Text(
                      'Valid through',
                      style: TextStyle(
                        color: Colors.white.withOpacity(0.8),
                        fontSize: 11,
                      ),
                    ),
                    const SizedBox(height: 2),
                    Text(
                      _formatDate(memberCard.validUntil),
                      style: const TextStyle(
                        color: Colors.white,
                        fontSize: 14,
                        fontWeight: FontWeight.w500,
                      ),
                    ),
                  ],
                ),
              ],
            ),

            const Spacer(),

            // Footer Row: Member Info and QR Code
            Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              crossAxisAlignment: CrossAxisAlignment.end,
              children: [
                // Member Info
                Expanded(
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text(
                        memberCard.name,
                        style: const TextStyle(
                          color: Colors.white,
                          fontSize: 18,
                          fontWeight: FontWeight.w600,
                        ),
                        maxLines: 1,
                        overflow: TextOverflow.ellipsis,
                      ),
                      const SizedBox(height: 4),
                      Text(
                        'CLASS: ${memberCard.tier.displayName}',
                        style: TextStyle(
                          color: Colors.white.withOpacity(0.9),
                          fontSize: 12,
                          fontWeight: FontWeight.w600,
                        ),
                      ),
                      const SizedBox(height: 2),
                      Text(
                        'Points: ${_formatPoints(memberCard.points)}',
                        style: TextStyle(
                          color: Colors.white.withOpacity(0.9),
                          fontSize: 12,
                          fontWeight: FontWeight.w600,
                        ),
                      ),
                    ],
                  ),
                ),
                // QR Code
                Container(
                  padding: const EdgeInsets.all(8),
                  decoration: BoxDecoration(
                    color: Colors.white,
                    borderRadius: BorderRadius.circular(8),
                  ),
                  child: QrImageView(
                    data: memberCard.qrData,
                    version: QrVersions.auto,
                    size: 60,
                    backgroundColor: Colors.white,
                  ),
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }

  /// Get gradient for tier
  LinearGradient _getGradientForTier(MemberTier tier) {
    switch (tier) {
      case MemberTier.diamond:
        return AppColors.diamondGradient;
      case MemberTier.platinum:
        return AppColors.platinumGradient;
      case MemberTier.gold:
        return AppColors.goldGradient;
    }
  }

  /// Format date to DD/MM/YYYY
  String _formatDate(DateTime date) {
    return '${date.day.toString().padLeft(2, '0')}/${date.month.toString().padLeft(2, '0')}/${date.year}';
  }

  /// Format points with thousands separator
  String _formatPoints(int points) {
    return points.toString().replaceAllMapped(
          RegExp(r'(\d{1,3})(?=(\d{3})+(?!\d))'),
          (Match m) => '${m[1]},',
        );
  }
}