391 lines
13 KiB
Dart
391 lines
13 KiB
Dart
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:go_router/go_router.dart';
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import 'package:real_estate_mobile/core/constants/app_colors.dart';
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import 'package:real_estate_mobile/features/auth/presentation/providers/auth_provider.dart';
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class Verify2faScreen extends ConsumerStatefulWidget {
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const Verify2faScreen({super.key});
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@override
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ConsumerState<Verify2faScreen> createState() => _Verify2faScreenState();
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}
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class _Verify2faScreenState extends ConsumerState<Verify2faScreen> {
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final List<TextEditingController> _controllers =
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List.generate(6, (_) => TextEditingController());
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final List<FocusNode> _focusNodes = List.generate(6, (_) => FocusNode());
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final TextEditingController _backupController = TextEditingController();
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bool _useBackupCode = false;
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@override
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void dispose() {
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for (final c in _controllers) {
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c.dispose();
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}
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for (final f in _focusNodes) {
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f.dispose();
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}
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_backupController.dispose();
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super.dispose();
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}
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String get _otpCode => _controllers.map((c) => c.text).join();
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void _handleOtpInput(int index, String value) {
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if (value.length > 1) {
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// Handle paste
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final digits = value.replaceAll(RegExp(r'[^0-9]'), '');
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if (digits.length >= 6) {
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for (int i = 0; i < 6; i++) {
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_controllers[i].text = digits[i];
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}
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_focusNodes[5].requestFocus();
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_submit();
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return;
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}
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_controllers[index].text = value[value.length - 1];
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}
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if (value.isNotEmpty && index < 5) {
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_focusNodes[index + 1].requestFocus();
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}
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// Auto-submit when all 6 digits are entered
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if (_otpCode.length == 6) {
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_submit();
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}
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}
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void _handleKeyDown(int index, KeyEvent event) {
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if (event is KeyDownEvent &&
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event.logicalKey == LogicalKeyboardKey.backspace) {
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if (_controllers[index].text.isEmpty && index > 0) {
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_focusNodes[index - 1].requestFocus();
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_controllers[index - 1].clear();
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}
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}
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}
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void _submit() {
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if (_useBackupCode) {
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final code = _backupController.text.trim();
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if (code.isEmpty) return;
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ref.read(authProvider.notifier).verifyBackupCode(code);
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} else {
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final code = _otpCode;
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if (code.length != 6) return;
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ref.read(authProvider.notifier).verifyTwoFactor(code);
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}
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}
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void _goBackToLogin() {
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ref.read(authProvider.notifier).clearTwoFactor();
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context.go('/login');
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}
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@override
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Widget build(BuildContext context) {
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final authState = ref.watch(authProvider);
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final isLoading = authState.status == AuthStatus.loading;
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// Navigate to home when authentication succeeds
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ref.listen<AuthState>(authProvider, (previous, next) {
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if (next.status == AuthStatus.authenticated) {
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context.go('/home');
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}
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});
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return Scaffold(
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body: Container(
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width: double.infinity,
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height: double.infinity,
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decoration: const BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.topCenter,
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end: Alignment.bottomCenter,
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colors: [AppColors.gradientStart, AppColors.gradientEnd],
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),
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),
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child: SafeArea(
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child: SingleChildScrollView(
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padding: const EdgeInsets.symmetric(horizontal: 24),
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child: Column(
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children: [
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const SizedBox(height: 40),
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// Logo
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Image.asset(
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'assets/icons/logo.png',
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width: 143,
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height: 41,
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),
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const SizedBox(height: 32),
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// Lock icon
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Container(
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width: 64,
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height: 64,
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decoration: BoxDecoration(
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color: AppColors.accentOrange.withValues(alpha: 0.1),
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shape: BoxShape.circle,
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),
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child: const Icon(
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Icons.lock_outlined,
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color: AppColors.accentOrange,
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size: 32,
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),
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),
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const SizedBox(height: 24),
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// Title
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const Text(
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'Two-Factor Authentication',
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style: TextStyle(
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fontFamily: 'Fractul',
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fontSize: 25,
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fontWeight: FontWeight.w400,
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color: AppColors.primaryDark,
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),
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),
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const SizedBox(height: 12),
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// Subtitle
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Text(
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_useBackupCode
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? 'Enter one of your backup codes to sign in.'
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: 'Enter the 6-digit code from your authenticator app.',
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textAlign: TextAlign.center,
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style: const TextStyle(
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fontFamily: 'SourceSerif4',
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fontSize: 14,
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fontWeight: FontWeight.w500,
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color: AppColors.primaryDark,
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),
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),
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const SizedBox(height: 8),
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// Email display
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if (authState.twoFactorEmail != null)
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Text(
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authState.twoFactorEmail!,
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style: TextStyle(
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fontFamily: 'SourceSerif4',
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fontSize: 13,
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fontWeight: FontWeight.w400,
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color: AppColors.primaryDark.withValues(alpha: 0.6),
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),
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),
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const SizedBox(height: 24),
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// Error banner
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if (authState.errorMessage != null) ...[
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Container(
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width: double.infinity,
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padding: const EdgeInsets.symmetric(
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horizontal: 16, vertical: 12),
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decoration: BoxDecoration(
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color: AppColors.errorBg,
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border: Border.all(color: AppColors.errorBorder),
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borderRadius: BorderRadius.circular(7),
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),
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child: Text(
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authState.errorMessage!,
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style: const TextStyle(
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fontFamily: 'Fractul',
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fontSize: 14,
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fontWeight: FontWeight.w300,
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color: AppColors.error,
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),
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),
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),
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const SizedBox(height: 16),
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],
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// Code input
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if (_useBackupCode)
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_buildBackupCodeInput()
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else
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_buildOtpInput(),
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const SizedBox(height: 24),
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// Verify button
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SizedBox(
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width: double.infinity,
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child: ElevatedButton(
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onPressed: isLoading ? null : _submit,
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child: isLoading
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? const SizedBox(
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height: 20,
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width: 20,
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child: CircularProgressIndicator(
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strokeWidth: 2,
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color: AppColors.primaryDark,
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),
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)
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: const Text('Verify'),
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),
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),
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const SizedBox(height: 24),
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// Toggle backup code / authenticator
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GestureDetector(
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onTap: () {
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setState(() {
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_useBackupCode = !_useBackupCode;
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// Clear inputs
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for (final c in _controllers) {
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c.clear();
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}
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_backupController.clear();
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});
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},
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child: Text(
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_useBackupCode
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? 'Use authenticator app instead'
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: 'Use a backup code instead',
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style: const TextStyle(
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fontFamily: 'Fractul',
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fontSize: 14,
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fontWeight: FontWeight.w500,
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color: AppColors.accentOrange,
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),
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),
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),
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const SizedBox(height: 16),
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// Back to login
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GestureDetector(
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onTap: _goBackToLogin,
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child: const Text(
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'Back to login',
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style: TextStyle(
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fontFamily: 'SourceSerif4',
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fontSize: 14,
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fontWeight: FontWeight.w400,
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color: AppColors.primaryDark,
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),
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),
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),
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const SizedBox(height: 40),
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],
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),
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),
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),
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),
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);
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}
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Widget _buildOtpInput() {
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return Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: List.generate(6, (index) {
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return Container(
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width: 48,
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height: 56,
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margin: EdgeInsets.only(
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right: index < 5 ? 8 : 0,
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left: index == 3 ? 8 : 0, // Extra gap after 3rd digit
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),
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child: KeyboardListener(
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focusNode: FocusNode(),
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onKeyEvent: (event) => _handleKeyDown(index, event),
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child: TextField(
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controller: _controllers[index],
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focusNode: _focusNodes[index],
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textAlign: TextAlign.center,
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keyboardType: TextInputType.number,
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maxLength: 1,
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inputFormatters: [FilteringTextInputFormatter.digitsOnly],
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onChanged: (value) => _handleOtpInput(index, value),
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style: const TextStyle(
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fontFamily: 'Fractul',
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fontSize: 24,
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fontWeight: FontWeight.w700,
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color: AppColors.primaryDark,
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),
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decoration: InputDecoration(
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counterText: '',
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filled: true,
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fillColor: AppColors.inputFill,
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contentPadding: const EdgeInsets.symmetric(vertical: 14),
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(10),
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borderSide: BorderSide(
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color: AppColors.primaryDark.withValues(alpha: 0.15),
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),
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),
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enabledBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(10),
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borderSide: BorderSide(
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color: AppColors.primaryDark.withValues(alpha: 0.15),
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),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(10),
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borderSide: const BorderSide(
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color: AppColors.accentOrange,
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width: 2,
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),
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),
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),
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),
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),
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);
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}),
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);
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}
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Widget _buildBackupCodeInput() {
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return TextField(
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controller: _backupController,
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textAlign: TextAlign.center,
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textInputAction: TextInputAction.done,
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onSubmitted: (_) => _submit(),
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style: const TextStyle(
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fontFamily: 'Fractul',
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fontSize: 18,
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fontWeight: FontWeight.w500,
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color: AppColors.primaryDark,
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letterSpacing: 2,
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),
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decoration: InputDecoration(
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hintText: 'Enter backup code',
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hintStyle: TextStyle(
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fontFamily: 'SourceSerif4',
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fontSize: 14,
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color: AppColors.primaryDark.withValues(alpha: 0.4),
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letterSpacing: 0,
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),
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filled: true,
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fillColor: AppColors.inputFill,
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contentPadding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 16,
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),
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(10),
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borderSide: BorderSide(
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color: AppColors.primaryDark.withValues(alpha: 0.15),
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),
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),
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enabledBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(10),
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borderSide: BorderSide(
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color: AppColors.primaryDark.withValues(alpha: 0.15),
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),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(10),
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borderSide: const BorderSide(
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color: AppColors.accentOrange,
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width: 2,
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),
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),
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),
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);
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}
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}
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