/// Invoice Section Widget
///
/// Optional invoice information form section.
library;

import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:worker/core/constants/ui_constants.dart';
import 'package:worker/core/theme/colors.dart';
import 'package:worker/features/cart/presentation/widgets/checkout_text_field.dart';

/// Invoice Section
///
/// Collects invoice/VAT information when checkbox is enabled.
class InvoiceSection extends HookWidget {
  final ValueNotifier<bool> needsInvoice;
  final TextEditingController companyNameController;
  final TextEditingController taxIdController;
  final TextEditingController companyAddressController;
  final TextEditingController companyEmailController;

  const InvoiceSection({
    super.key,
    required this.needsInvoice,
    required this.companyNameController,
    required this.taxIdController,
    required this.companyAddressController,
    required this.companyEmailController,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      margin: const EdgeInsets.symmetric(horizontal: AppSpacing.md),
      padding: const EdgeInsets.all(AppSpacing.md),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(AppRadius.card),
        boxShadow: [
          BoxShadow(
            color: Colors.black.withValues(alpha: 0.05),
            blurRadius: 8,
            offset: const Offset(0, 2),
          ),
        ],
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          // Invoice Checkbox
          Row(
            children: [
              Checkbox(
                value: needsInvoice.value,
                onChanged: (value) {
                  needsInvoice.value = value ?? false;
                },
                activeColor: AppColors.primaryBlue,
              ),
              const Expanded(
                child: Text(
                  'Xuất hóa đơn VAT',
                  style: TextStyle(
                    fontSize: 16,
                    fontWeight: FontWeight.w600,
                    color: Color(0xFF212121),
                  ),
                ),
              ),
            ],
          ),

          // Invoice Fields (visible when checkbox is checked)
          if (needsInvoice.value) ...[
            const SizedBox(height: AppSpacing.md),

            // Company Name
            CheckoutTextField(
              label: 'Tên công ty',
              controller: companyNameController,
              required: true,
              validator: (value) {
                if (needsInvoice.value && (value == null || value.isEmpty)) {
                  return 'Vui lòng nhập tên công ty';
                }
                return null;
              },
            ),

            const SizedBox(height: AppSpacing.md),

            // Tax ID
            CheckoutTextField(
              label: 'Mã số thuế',
              controller: taxIdController,
              required: true,
              keyboardType: TextInputType.number,
              validator: (value) {
                if (needsInvoice.value && (value == null || value.isEmpty)) {
                  return 'Vui lòng nhập mã số thuế';
                }
                return null;
              },
            ),

            const SizedBox(height: AppSpacing.md),

            // Company Address
            CheckoutTextField(
              label: 'Địa chỉ công ty',
              controller: companyAddressController,
              required: true,
              maxLines: 2,
              validator: (value) {
                if (needsInvoice.value && (value == null || value.isEmpty)) {
                  return 'Vui lòng nhập địa chỉ công ty';
                }
                return null;
              },
            ),

            const SizedBox(height: AppSpacing.md),

            // Company Email
            CheckoutTextField(
              label: 'Email nhận hóa đơn',
              controller: companyEmailController,
              required: true,
              keyboardType: TextInputType.emailAddress,
              validator: (value) {
                if (needsInvoice.value && (value == null || value.isEmpty)) {
                  return 'Vui lòng nhập email';
                }
                if (needsInvoice.value &&
                    !RegExp(
                      r'^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$',
                    ).hasMatch(value!)) {
                  return 'Email không hợp lệ';
                }
                return null;
              },
            ),
          ],
        ],
      ),
    );
  }
}