309 lines
12 KiB
Dart
309 lines
12 KiB
Dart
import 'dart:async';
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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_bloc/flutter_bloc.dart';
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import '../../../core/l10n/app_localizations.dart';
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import 'package:go_router/go_router.dart';
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import '../cubit/auth_cubit.dart';
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import '../cubit/auth_state.dart';
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import '../../../core/design/tokens.dart';
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import '../../../core/ui/tripz_scaffold.dart';
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import '../../../core/ui/tripz_button.dart';
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/// شاشة تحقق OTP — تطابق stitch/otp_verification.html:
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/// شريط علوي بلون primary + 4 خانات منفصلة (ترتيب LTR ثابت) + عدّاد
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/// إعادة إرسال + تأكيد تلقائي عند اكتمال الخانات.
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class OtpScreen extends StatefulWidget {
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const OtpScreen({super.key});
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@override
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State<OtpScreen> createState() => _OtpScreenState();
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}
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class _OtpScreenState extends State<OtpScreen> {
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static const _otpLength = 4;
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final List<TextEditingController> _controllers =
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List.generate(_otpLength, (_) => TextEditingController());
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final List<FocusNode> _focusNodes =
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List.generate(_otpLength, (_) => FocusNode());
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int _resendSeconds = 60;
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Timer? _resendTimer;
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@override
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void initState() {
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super.initState();
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_startResendTimer();
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WidgetsBinding.instance.addPostFrameCallback((_) {
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_focusNodes[0].requestFocus();
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});
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}
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@override
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void dispose() {
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_resendTimer?.cancel();
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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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super.dispose();
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}
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void _startResendTimer() {
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_resendSeconds = 60;
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_resendTimer?.cancel();
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_resendTimer = Timer.periodic(const Duration(seconds: 1), (timer) {
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if (_resendSeconds <= 0) {
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timer.cancel();
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} else {
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setState(() => _resendSeconds--);
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}
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});
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}
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String get _otpCode => _controllers.map((c) => c.text).join();
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bool get _isComplete => _otpCode.length == _otpLength;
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void _onDigitChanged(int index, String value) {
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if (value.length > 1) {
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// لصق تلقائي: يوزّع الأرقام الملصوقة على الخانات بالترتيب
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final digits = value.replaceAll(RegExp(r'[^0-9]'), '');
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for (int i = 0; i < _otpLength && i < digits.length; i++) {
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_controllers[i].text = digits[i];
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}
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final nextIdx = digits.length.clamp(0, _otpLength - 1);
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_focusNodes[nextIdx].requestFocus();
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} else if (value.isNotEmpty) {
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if (index < _otpLength - 1) {
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_focusNodes[index + 1].requestFocus();
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} else {
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_focusNodes[index].unfocus();
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}
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}
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setState(() {});
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if (_isComplete) {
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_submit();
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}
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}
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void _onKeyPress(int index, KeyEvent event) {
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if (event is KeyDownEvent &&
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event.logicalKey == LogicalKeyboardKey.backspace &&
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_controllers[index].text.isEmpty &&
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index > 0) {
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_controllers[index - 1].clear();
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_focusNodes[index - 1].requestFocus();
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setState(() {});
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}
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}
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void _submit() {
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if (!_isComplete) return;
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context.read<AuthCubit>().verify(_otpCode);
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}
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void _resend() {
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final phone = context.read<AuthCubit>().state.phone;
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context.read<AuthCubit>().sendOtp(phone);
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_startResendTimer();
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}
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@override
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Widget build(BuildContext context) {
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final l10n = AppLocalizations.of(context)!;
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final theme = Theme.of(context);
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final cs = theme.colorScheme;
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final phone = context.watch<AuthCubit>().state.phone;
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return BlocConsumer<AuthCubit, AuthState>(
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listener: (context, state) {
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if (state.status == AuthStatus.error && state.error != null) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text(state.error!)),
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);
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}
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},
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builder: (context, state) {
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final isLoading = state.status == AuthStatus.authenticating;
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return TripzScaffold(
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padding: false,
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safeAreaTop: false,
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bottomAction: TripzButton(
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onPressed: (_isComplete && !isLoading) ? _submit : null,
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label: l10n.confirm,
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loading: isLoading,
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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// ── شريط علوي بلون primary (يطابق TopAppBar في stitch) ──
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SafeArea(
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bottom: false,
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child: SizedBox(
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height: kToolbarHeight,
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child: ColoredBox(
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color: cs.primary,
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: T.s8),
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child: Row(
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children: [
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IconButton(
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icon: const BackButtonIcon(),
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color: cs.onPrimary,
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onPressed: () => context.go('/phone'),
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),
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const SizedBox(width: T.s8),
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Text(
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l10n.confirmPhoneNumber,
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style: theme.textTheme.titleLarge?.copyWith(
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color: cs.onPrimary,
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fontWeight: FontWeight.w700,
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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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Expanded(
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: T.pagePadding),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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const SizedBox(height: T.s24),
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// نص الشرح + تعديل الرقم
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Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Expanded(
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child: Text(
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l10n.otpSentTo(phone),
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style: theme.textTheme.bodyLarge?.copyWith(
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color: cs.onSurfaceVariant,
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height: 1.5,
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),
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),
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),
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TextButton(
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onPressed: () => context.go('/phone'),
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style: TextButton.styleFrom(
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padding: const EdgeInsets.symmetric(horizontal: T.s8),
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minimumSize: Size.zero,
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tapTargetSize: MaterialTapTargetSize.shrinkWrap,
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),
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child: Text(
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l10n.edit,
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style: theme.textTheme.labelLarge?.copyWith(
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color: cs.primary,
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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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const SizedBox(height: T.s32),
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// ── خانات الرمز — ترتيب LTR ثابت (يطابق dir="ltr" في stitch) ──
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Directionality(
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textDirection: TextDirection.ltr,
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: List.generate(_otpLength, (i) {
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final hasFocus = _focusNodes[i].hasFocus;
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final hasValue = _controllers[i].text.isNotEmpty;
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return Padding(
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padding: EdgeInsetsDirectional.only(
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end: i < _otpLength - 1 ? T.s16 : 0,
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),
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child: Container(
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width: 60,
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height: 64,
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(T.r12),
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boxShadow: (hasFocus || hasValue) ? const [T.shadowSm] : null,
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),
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child: KeyboardListener(
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focusNode: FocusNode(),
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onKeyEvent: (event) => _onKeyPress(i, event),
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child: TextField(
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controller: _controllers[i],
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focusNode: _focusNodes[i],
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textAlign: TextAlign.center,
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keyboardType: TextInputType.number,
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maxLength: 1,
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style: theme.textTheme.headlineSmall?.copyWith(
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fontWeight: FontWeight.bold,
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color: cs.onSurface,
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fontFeatures: const [FontFeature.tabularFigures()],
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),
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inputFormatters: [
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FilteringTextInputFormatter.digitsOnly,
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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: cs.surfaceContainerLowest,
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contentPadding: const EdgeInsets.symmetric(vertical: 14),
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(T.r12),
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borderSide: BorderSide(color: cs.outlineVariant),
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),
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enabledBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(T.r12),
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borderSide: BorderSide(
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color: hasValue ? cs.primary : cs.outlineVariant,
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width: hasValue ? 1.5 : 1,
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),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(T.r12),
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borderSide: BorderSide(color: cs.primary, width: 2),
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),
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),
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onChanged: (v) => _onDigitChanged(i, v),
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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: T.s24),
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// عدّاد إعادة الإرسال
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Center(
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child: _resendSeconds > 0
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? Text(
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l10n.resendIn(_resendSeconds),
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style: theme.textTheme.bodyMedium?.copyWith(
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color: cs.onSurfaceVariant,
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fontFeatures: const [FontFeature.tabularFigures()],
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),
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)
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: TripzButton(
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onPressed: _resend,
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style: TripzButtonStyle.text,
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label: l10n.resendCode,
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fullWidth: false,
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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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}
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}
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