426 lines
14 KiB
Dart
426 lines
14 KiB
Dart
import 'dart:async';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:komet/l10n/app_localizations.dart';
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import 'package:flutter/services.dart';
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import 'package:google_fonts/google_fonts.dart';
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import 'package:smart_auth/smart_auth.dart';
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import '../chats/chat_list_screen.dart';
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import 'password_2fa_screen.dart';
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import '../../../main.dart';
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import '../../widgets/custom_notification.dart';
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class CodeConfirmationScreen extends StatefulWidget {
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final String phoneNumber;
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final String token;
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const CodeConfirmationScreen({
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super.key,
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required this.phoneNumber,
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required this.token,
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});
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@override
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State<CodeConfirmationScreen> createState() => _CodeConfirmationScreenState();
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}
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class _CodeConfirmationScreenState extends State<CodeConfirmationScreen>
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with TickerProviderStateMixin {
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final TextEditingController _codeController = TextEditingController();
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final FocusNode _focusNode = FocusNode();
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final SmartAuth _smartAuth = SmartAuth.instance;
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int _timerSeconds = 30;
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Timer? _timer;
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Timer? _errorTimer;
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bool _isListeningSmsConsent = false;
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String? _errorMessage;
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late AnimationController _shakeController;
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late Animation<double> _shakeAnimation;
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@override
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void initState() {
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super.initState();
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_startTimer();
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WidgetsBinding.instance.addPostFrameCallback((_) {
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_focusNode.requestFocus();
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});
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_startSmsCodeListener();
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_shakeController = AnimationController(
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vsync: this,
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duration: const Duration(milliseconds: 500),
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);
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_shakeAnimation = TweenSequence<double>([
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TweenSequenceItem(tween: Tween(begin: 0.0, end: -8.0), weight: 1),
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TweenSequenceItem(tween: Tween(begin: -8.0, end: 8.0), weight: 2),
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TweenSequenceItem(tween: Tween(begin: 8.0, end: -8.0), weight: 2),
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TweenSequenceItem(tween: Tween(begin: -8.0, end: 8.0), weight: 2),
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TweenSequenceItem(tween: Tween(begin: 8.0, end: -4.0), weight: 2),
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TweenSequenceItem(tween: Tween(begin: -4.0, end: 0.0), weight: 1),
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]).animate(CurvedAnimation(parent: _shakeController, curve: Curves.linear));
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}
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Future<void> _startSmsCodeListener() async {
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if (defaultTargetPlatform != TargetPlatform.android) return;
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if (_isListeningSmsConsent) return;
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_isListeningSmsConsent = true;
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final result = await _smartAuth.getSmsWithUserConsentApi(matcher: r'\d{6}');
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_isListeningSmsConsent = false;
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if (!mounted || !result.hasData) return;
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final receivedCode = result.data?.code;
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if (receivedCode == null || receivedCode.isEmpty) return;
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_applyAutoFillCode(receivedCode);
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}
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Future<void> _restartSmsCodeListener() async {
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if (defaultTargetPlatform != TargetPlatform.android) return;
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await _smartAuth.removeUserConsentApiListener();
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_isListeningSmsConsent = false;
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await _startSmsCodeListener();
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}
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void _handleCodeChanged(String value) {
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setState(() {
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if (_errorMessage != null) {
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_errorMessage = null;
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}
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});
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if (value.length == 6) {
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_verifyCode();
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}
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}
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void _applyAutoFillCode(String rawCode) {
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final digitsOnly = rawCode.replaceAll(RegExp(r'\D'), '');
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if (digitsOnly.isEmpty) return;
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final nextCode = digitsOnly.length <= 6
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? digitsOnly
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: digitsOnly.substring(0, 6);
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if (_codeController.text == nextCode) return;
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_codeController.value = TextEditingValue(
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text: nextCode,
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selection: TextSelection.collapsed(offset: nextCode.length),
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);
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_handleCodeChanged(nextCode);
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}
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@override
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void dispose() {
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_timer?.cancel();
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_errorTimer?.cancel();
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unawaited(_smartAuth.removeUserConsentApiListener());
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_shakeController.dispose();
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_codeController.dispose();
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_focusNode.dispose();
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super.dispose();
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}
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void _startTimer() {
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_timer?.cancel();
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_timerSeconds = 30;
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_timer = Timer.periodic(const Duration(seconds: 1), (timer) {
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setState(() {
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if (_timerSeconds > 0) {
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_timerSeconds--;
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} else {
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_timer?.cancel();
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}
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});
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});
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}
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void _showError(String message) {
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_errorTimer?.cancel();
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_shakeController.forward(from: 0);
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setState(() => _errorMessage = message);
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_errorTimer = Timer(const Duration(seconds: 3), () {
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if (mounted) setState(() => _errorMessage = null);
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});
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}
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void _resendCode() {
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if (_timerSeconds == 0) {
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_startTimer();
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unawaited(_restartSmsCodeListener());
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}
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}
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Future<void> _verifyCode() async {
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if (_codeController.text.length != 6) return;
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try {
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final result = await accountModule.verifyCode(
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_codeController.text,
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widget.token,
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);
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if (!mounted) return;
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if (result.requiresPassword) {
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final trackId = result.challengeTrackId;
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if (trackId == null) {
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showCustomNotification(
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context,
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AppLocalizations.of(context)!.codeError2faMissing,
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);
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return;
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}
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Navigator.pushReplacement(
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context,
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MaterialPageRoute(
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builder: (context) =>
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Password2FAScreen(trackId: trackId, hint: result.challengeHint),
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),
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);
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return;
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}
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await accountModule.login();
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if (!mounted) return;
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Navigator.pushAndRemoveUntil(
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context,
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MaterialPageRoute(builder: (context) => const ChatListScreen()),
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(route) => false,
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);
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} catch (e) {
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if (!mounted) return;
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_showError(e.toString());
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}
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}
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@override
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Widget build(BuildContext context) {
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final cs = Theme.of(context).colorScheme;
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final l10n = AppLocalizations.of(context)!;
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final hasError = _errorMessage != null;
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return Scaffold(
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backgroundColor: cs.surface,
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appBar: AppBar(
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backgroundColor: Colors.transparent,
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elevation: 0,
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leading: IconButton(
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icon: Icon(Icons.arrow_back, color: cs.onSurfaceVariant),
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onPressed: () => Navigator.pop(context),
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),
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),
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body: SafeArea(
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 20),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const SizedBox(height: 16),
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Text(
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widget.phoneNumber,
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style: GoogleFonts.inter(
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color: cs.onSurface,
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fontSize: 22,
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fontWeight: FontWeight.w500,
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),
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),
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const SizedBox(height: 12),
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Text(
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l10n.codeConfirmationSmsSent,
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style: TextStyle(
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color: cs.outline,
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fontSize: 15,
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fontWeight: FontWeight.w400,
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height: 1.4,
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),
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),
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const SizedBox(height: 12),
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AnimatedBuilder(
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animation: _shakeAnimation,
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builder: (context, child) => Transform.translate(
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offset: Offset(_shakeAnimation.value, 0),
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child: child,
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),
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child: Stack(
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children: [
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Opacity(
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opacity: 0,
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child: SizedBox(
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height: 0,
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width: 0,
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child: TextField(
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controller: _codeController,
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focusNode: _focusNode,
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keyboardType: TextInputType.number,
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autofillHints: const [AutofillHints.oneTimeCode],
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inputFormatters: [
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FilteringTextInputFormatter.digitsOnly,
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LengthLimitingTextInputFormatter(6),
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],
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onChanged: _handleCodeChanged,
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),
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),
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),
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GestureDetector(
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onTap: () => _focusNode.requestFocus(),
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child: FittedBox(
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child: Row(
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children: List.generate(6, (index) {
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final isFocused =
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_codeController.text.length == index &&
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_focusNode.hasFocus;
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final hasValue =
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_codeController.text.length > index;
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final char = hasValue
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? _codeController.text[index]
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: '';
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Color borderColor;
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if (hasError && hasValue) {
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borderColor = cs.error;
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} else if (isFocused) {
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borderColor = cs.primary;
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} else if (hasValue) {
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borderColor = cs.outlineVariant;
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} else {
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borderColor = Colors.transparent;
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}
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return AnimatedContainer(
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duration: const Duration(milliseconds: 200),
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width: 44,
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height: 54,
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margin: EdgeInsets.only(
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right: index == 5 ? 0 : 10,
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),
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decoration: BoxDecoration(
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color: hasError && hasValue
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? cs.error.withValues(alpha: 0.1)
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: cs.surfaceContainerHigh,
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borderRadius: BorderRadius.circular(8),
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border: Border.all(
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color: borderColor,
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width: 1.5,
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),
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),
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alignment: Alignment.center,
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child: AnimatedSwitcher(
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duration: const Duration(milliseconds: 100),
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transitionBuilder:
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(
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Widget child,
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Animation<double> animation,
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) {
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return ScaleTransition(
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scale: animation,
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child: FadeTransition(
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opacity: animation,
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child: child,
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),
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);
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},
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child: Text(
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char,
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key: ValueKey<String>(
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char +
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index.toString() +
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(hasError ? 'e' : ''),
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),
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style: TextStyle(
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color: hasError && hasValue
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? cs.error
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: cs.onSurface,
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fontSize: 20,
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fontWeight: FontWeight.w600,
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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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),
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),
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const SizedBox(height: 16),
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AnimatedSize(
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duration: const Duration(milliseconds: 250),
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curve: Curves.easeOutCubic,
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alignment: Alignment.topLeft,
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child: hasError
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? Padding(
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padding: const EdgeInsets.only(bottom: 8),
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child: AnimatedOpacity(
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opacity: hasError ? 1.0 : 0.0,
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duration: const Duration(milliseconds: 200),
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child: Text(
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_errorMessage!,
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style: TextStyle(
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color: cs.error,
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fontSize: 14,
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fontWeight: FontWeight.w500,
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height: 1.35,
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),
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),
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),
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)
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: const SizedBox.shrink(),
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),
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GestureDetector(
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onTap: _resendCode,
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child: AnimatedDefaultTextStyle(
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duration: const Duration(milliseconds: 200),
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style: TextStyle(
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color: _timerSeconds > 0 ? cs.outline : cs.tertiary,
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fontSize: 14,
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fontWeight: FontWeight.w400,
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),
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child: Text(
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_timerSeconds > 0
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? l10n.codeResendInSeconds(_timerSeconds)
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: l10n.codeResendSms,
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),
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),
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),
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const Spacer(),
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Row(
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mainAxisAlignment: MainAxisAlignment.end,
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children: [
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FloatingActionButton(
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onPressed: () {
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if (_codeController.text.length == 6) _verifyCode();
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},
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backgroundColor: _codeController.text.length == 6
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? cs.primaryContainer
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: cs.surfaceContainerHighest,
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elevation: 0,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(50),
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),
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child: Icon(
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Icons.arrow_forward,
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color: _codeController.text.length == 6
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? cs.onPrimaryContainer
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: cs.onSurfaceVariant,
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),
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),
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],
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),
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const SizedBox(height: 24),
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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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