/// Addresses Page
///
/// Displays list of saved addresses with management options.
/// Features:
/// - List of saved addresses
/// - Default address indicator
/// - Edit/delete actions
/// - Set as default functionality
/// - Add new address
library;

import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:go_router/go_router.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:worker/core/constants/ui_constants.dart';
import 'package:worker/core/theme/colors.dart';
import 'package:worker/features/account/presentation/widgets/address_card.dart';

/// Addresses Page
///
/// Page for managing saved delivery addresses.
class AddressesPage extends HookConsumerWidget {
  const AddressesPage({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    // Mock addresses data
    final addresses = useState<List<Map<String, dynamic>>>([
      {
        'id': '1',
        'name': 'Hoàng Minh Hiệp',
        'phone': '0347302911',
        'address':
            '123 Đường Võ Văn Ngân, Phường Linh Chiểu, Thành phố Thủ Đức, TP.HCM',
        'isDefault': true,
      },
      {
        'id': '2',
        'name': 'Hoàng Minh Hiệp',
        'phone': '0347302911',
        'address': '456 Đường Nguyễn Thị Minh Khai, Quận 3, TP.HCM',
        'isDefault': false,
      },
      {
        'id': '3',
        'name': 'Công ty TNHH ABC',
        'phone': '0283445566',
        'address': '789 Đường Lê Văn Sỹ, Quận Phú Nhuận, TP.HCM',
        'isDefault': false,
      },
    ]);

    return Scaffold(
      backgroundColor: const Color(0xFFF4F6F8),
      appBar: AppBar(
        backgroundColor: Colors.white,
        elevation: 0,
        leading: IconButton(
          icon: const Icon(Icons.arrow_back, color: Colors.black),
          onPressed: () => context.pop(),
        ),
        title: const Text(
          'Địa chỉ đã lưu',
          style: TextStyle(
            color: Colors.black,
            fontSize: 18,
            fontWeight: FontWeight.bold,
          ),
        ),
        centerTitle: false,
        actions: [
          IconButton(
            icon: const Icon(Icons.add, color: Colors.black),
            onPressed: () {
              _showAddAddress(context);
            },
          ),
          const SizedBox(width: AppSpacing.sm),
        ],
      ),
      body: Column(
        children: [
          // Address List
          Expanded(
            child: addresses.value.isEmpty
                ? _buildEmptyState(context)
                : ListView.separated(
                    padding: const EdgeInsets.all(AppSpacing.md),
                    itemCount: addresses.value.length,
                    separatorBuilder: (context, index) =>
                        const SizedBox(height: AppSpacing.md),
                    itemBuilder: (context, index) {
                      final address = addresses.value[index];
                      return AddressCard(
                        name: address['name'] as String,
                        phone: address['phone'] as String,
                        address: address['address'] as String,
                        isDefault: address['isDefault'] as bool,
                        onEdit: () {
                          _showEditAddress(context, address);
                        },
                        onDelete: () {
                          _showDeleteConfirmation(context, addresses, index);
                        },
                        onSetDefault: () {
                          _setDefaultAddress(addresses, index);
                        },
                      );
                    },
                  ),
          ),

          // Add New Address Button
          Padding(
            padding: const EdgeInsets.all(AppSpacing.md),
            child: SizedBox(
              width: double.infinity,
              child: ElevatedButton.icon(
                onPressed: () {
                  _showAddAddress(context);
                },
                icon: const Icon(Icons.add, size: 20),
                label: const Text(
                  'Thêm địa chỉ mới',
                  style: TextStyle(fontSize: 16, fontWeight: FontWeight.w600),
                ),
                style: ElevatedButton.styleFrom(
                  backgroundColor: AppColors.primaryBlue,
                  foregroundColor: Colors.white,
                  padding: const EdgeInsets.symmetric(vertical: 14),
                  elevation: 0,
                  shape: RoundedRectangleBorder(
                    borderRadius: BorderRadius.circular(AppRadius.button),
                  ),
                ),
              ),
            ),
          ),
        ],
      ),
    );
  }

  /// Build empty state
  Widget _buildEmptyState(BuildContext context) {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Icon(
            Icons.location_off,
            size: 64,
            color: AppColors.grey500.withValues(alpha: 0.5),
          ),
          const SizedBox(height: 16),
          const Text(
            'Chưa có địa chỉ nào',
            style: TextStyle(
              fontSize: 16,
              fontWeight: FontWeight.w600,
              color: AppColors.grey500,
            ),
          ),
          const SizedBox(height: 8),
          const Text(
            'Thêm địa chỉ để nhận hàng nhanh hơn',
            style: TextStyle(fontSize: 14, color: AppColors.grey500),
          ),
          const SizedBox(height: 24),
          ElevatedButton.icon(
            onPressed: () {
              _showAddAddress(context);
            },
            icon: const Icon(Icons.add, size: 20),
            label: const Text(
              'Thêm địa chỉ mới',
              style: TextStyle(fontSize: 14, fontWeight: FontWeight.w600),
            ),
            style: ElevatedButton.styleFrom(
              backgroundColor: AppColors.primaryBlue,
              foregroundColor: Colors.white,
              padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
              elevation: 0,
              shape: RoundedRectangleBorder(
                borderRadius: BorderRadius.circular(AppRadius.button),
              ),
            ),
          ),
        ],
      ),
    );
  }

  /// Set address as default
  void _setDefaultAddress(
    ValueNotifier<List<Map<String, dynamic>>> addresses,
    int index,
  ) {
    final updatedAddresses = addresses.value.map((address) {
      return {...address, 'isDefault': false};
    }).toList();

    updatedAddresses[index]['isDefault'] = true;
    addresses.value = updatedAddresses;
  }

  /// Show add address dialog (TODO: implement form page)
  void _showAddAddress(BuildContext context) {
    ScaffoldMessenger.of(context).showSnackBar(
      const SnackBar(
        content: Text('Chức năng thêm địa chỉ mới sẽ được phát triển'),
        duration: Duration(seconds: 2),
      ),
    );
  }

  /// Show edit address dialog (TODO: implement form page)
  void _showEditAddress(BuildContext context, Map<String, dynamic> address) {
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(
        content: Text('Chỉnh sửa địa chỉ: ${address['name']}'),
        duration: const Duration(seconds: 2),
      ),
    );
  }

  /// Show delete confirmation dialog
  void _showDeleteConfirmation(
    BuildContext context,
    ValueNotifier<List<Map<String, dynamic>>> addresses,
    int index,
  ) {
    showDialog<void>(
      context: context,
      builder: (context) => AlertDialog(
        title: const Text('Xóa địa chỉ'),
        content: const Text('Bạn có chắc chắn muốn xóa địa chỉ này?'),
        actions: [
          TextButton(
            onPressed: () => Navigator.pop(context),
            child: const Text('Hủy'),
          ),
          TextButton(
            onPressed: () {
              Navigator.pop(context);
              _deleteAddress(context, addresses, index);
            },
            style: TextButton.styleFrom(foregroundColor: AppColors.danger),
            child: const Text('Xóa'),
          ),
        ],
      ),
    );
  }

  /// Delete address
  void _deleteAddress(
    BuildContext context,
    ValueNotifier<List<Map<String, dynamic>>> addresses,
    int index,
  ) {
    final deletedAddress = addresses.value[index];
    final updatedAddresses = List<Map<String, dynamic>>.from(addresses.value);
    updatedAddresses.removeAt(index);

    // If deleted address was default and there are other addresses,
    // set the first one as default
    if (deletedAddress['isDefault'] == true && updatedAddresses.isNotEmpty) {
      updatedAddresses[0]['isDefault'] = true;
    }

    addresses.value = updatedAddresses;

    ScaffoldMessenger.of(context).showSnackBar(
      const SnackBar(
        content: Text('Đã xóa địa chỉ'),
        duration: Duration(seconds: 2),
      ),
    );
  }
}