606 lines
25 KiB
Dart
606 lines
25 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_animate/flutter_animate.dart';
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import 'package:go_router/go_router.dart';
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import '../../../../l10n/app_localizations.dart';
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import '../../../../core/services/auth_service.dart';
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import '../../../../core/services/session_service.dart';
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import '../../../../core/theme/app_theme_extension.dart';
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import '../../../../shared/presentation/widgets/custom_notification.dart';
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class LoginPage extends StatefulWidget {
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final String? selectedRole;
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const LoginPage({super.key, this.selectedRole});
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@override
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State<LoginPage> createState() => _LoginPageState();
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}
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class _LoginPageState extends State<LoginPage> {
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final _formKey = GlobalKey<FormState>();
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final _emailController = TextEditingController();
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final _passwordController = TextEditingController();
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bool _isLoading = false;
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bool _obscurePassword = true;
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bool _rememberMe = false;
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@override
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void dispose() {
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_emailController.dispose();
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_passwordController.dispose();
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super.dispose();
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}
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@override
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void initState() {
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super.initState();
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_loadSavedSession();
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}
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void _loadSavedSession() async {
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try {
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final sessionData = await SessionService.getCurrentSession();
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if (sessionData['email'] != null) {
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setState(() {
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_emailController.text = sessionData['email'];
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_rememberMe = sessionData['rememberMe'] ?? false;
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});
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}
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} catch (e) {
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print('DEBUG: Error loading saved session: $e');
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}
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}
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void _handleLogin() async {
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if (_formKey.currentState!.validate()) {
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setState(() {
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_isLoading = true;
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});
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try {
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// Get email and password from controllers
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final email = _emailController.text.trim();
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final password = _passwordController.text.trim();
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print('DEBUG: Iniciando processo de login para: $email');
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// Attempt login with Firebase
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final result = await AuthService.signInWithEmailAndPassword(
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email: email,
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password: password,
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);
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print('DEBUG: Login Firebase bem-sucedido');
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print(
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'DEBUG: Role selecionado na tela anterior: ${widget.selectedRole}',
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);
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// Ler role na Firestore
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final uid = result?.user?.uid;
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if (uid == null) throw Exception('Erro ao obter UID');
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final actualRole = await AuthService.getUserRole(uid);
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print('DEBUG: Role real do usuário na Firestore: $actualRole');
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// Se não há role selecionado, redirecionar para role-selection
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final selectedRole = widget.selectedRole;
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if (selectedRole == null) {
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await AuthService.signOut();
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if (mounted) {
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setState(() => _isLoading = false);
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context.go('/role-selection');
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}
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return;
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}
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// Validar se o role selecionado corresponde ao role real
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if (actualRole != null && selectedRole != actualRole) {
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// Fazer logout imediato antes de mostrar erro
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await AuthService.signOut();
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setState(() {
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_isLoading = false;
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});
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String errorMessage;
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if (selectedRole == 'teacher' && actualRole == 'student') {
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errorMessage =
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'Este email está registado como Aluno. Não pode aceder à área de Professores.';
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} else if (selectedRole == 'student' && actualRole == 'teacher') {
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errorMessage =
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'Este email está registado como Professor. Não pode aceder à área de Alunos.';
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} else {
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errorMessage =
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'O tipo de utilizador selecionado não corresponde ao perfil registado.';
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}
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_showRoleErrorDialog('Acesso Negado', errorMessage);
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return;
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}
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// Save session based on remember me preference
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await SessionService.saveSession(
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rememberMe: _rememberMe,
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email: email,
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displayName: AuthService.currentUser?.displayName,
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);
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if (mounted) {
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setState(() {
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_isLoading = false;
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});
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// Show success message
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NotificationHelper.showSuccess(
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context,
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message: 'Login realizado com sucesso!',
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);
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// Redirecionar baseado no role real
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if (actualRole == 'teacher') {
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context.go('/teacher-dashboard');
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} else {
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context.go('/student-dashboard');
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}
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}
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} catch (e) {
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print('DEBUG: Erro no login: $e');
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if (mounted) {
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setState(() {
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_isLoading = false;
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});
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}
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// Show error message
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NotificationHelper.showError(
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context,
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message: e.toString().replaceAll('Exception: ', ''),
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);
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}
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}
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}
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void _showRoleErrorDialog(String title, String message) {
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showDialog(
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context: context,
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barrierDismissible: false,
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builder: (BuildContext context) {
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return AlertDialog(
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title: Text(
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title,
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style: TextStyle(
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color: Theme.of(context).colorScheme.onSurface,
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fontWeight: FontWeight.bold,
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),
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),
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content: Text(
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message,
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style: TextStyle(color: Theme.of(context).colorScheme.onSurface),
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),
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actions: [
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TextButton(
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onPressed: () {
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Navigator.of(context).pop();
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context.go('/role-selection');
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},
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child: Text(
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'Voltar',
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style: TextStyle(color: Theme.of(context).colorScheme.primary),
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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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@override
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Widget build(BuildContext context) {
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return PopScope(
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canPop: false,
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onPopInvokedWithResult: (didPop, result) {
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if (!didPop) {
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context.go('/role-selection');
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}
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},
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child: Scaffold(
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body: Stack(
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children: [
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// Main content
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Container(
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decoration: BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.topLeft,
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end: Alignment.bottomRight,
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colors: Theme.of(context).brightness == Brightness.dark
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? AppThemeExtras.of(context).authBackgroundGradient
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: [
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Theme.of(context).colorScheme.background,
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Theme.of(context).colorScheme.primary
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.withOpacity(0.1),
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Theme.of(context).colorScheme.secondary
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.withOpacity(0.05),
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Theme.of(context).colorScheme.background,
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],
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),
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),
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child: SafeArea(
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child: Center(
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child: SingleChildScrollView(
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padding: const EdgeInsets.all(24.0),
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child: Form(
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key: _formKey,
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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const SizedBox(height: 60),
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// Logo/Title
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Container(
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padding: const EdgeInsets.all(20.0),
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decoration: BoxDecoration(
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color: Theme.of(
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context,
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).colorScheme.surface.withOpacity(0.9),
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borderRadius: BorderRadius.circular(16.0),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.1),
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blurRadius: 10.0,
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offset: const Offset(0, 4),
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),
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],
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),
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child: Column(
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children: [
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Text(
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'EPVC',
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style: TextStyle(
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fontSize: 32,
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fontWeight: FontWeight.bold,
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foreground: Paint()
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..shader =
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LinearGradient(
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colors: [
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Theme.of(
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context,
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).colorScheme.primary,
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Theme.of(
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context,
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).colorScheme.secondary,
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],
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).createShader(
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Rect.fromLTWH(0, 0, 200, 20),
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),
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),
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),
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const SizedBox(height: 8),
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Text(
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'Escola Profissional de Vila do Conde',
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style: TextStyle(
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fontSize: 14,
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color: Theme.of(
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context,
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).colorScheme.onSurface,
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fontWeight: FontWeight.w500,
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),
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),
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],
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),
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).animate().fadeIn(
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duration: const Duration(milliseconds: 800),
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),
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const SizedBox(height: 40),
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// Login form
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Container(
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padding: const EdgeInsets.all(24.0),
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decoration: BoxDecoration(
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color: Theme.of(
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context,
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).colorScheme.surface.withOpacity(0.9),
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borderRadius: BorderRadius.circular(16.0),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.1),
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blurRadius: 10.0,
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offset: const Offset(0, 4),
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),
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],
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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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Text(
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'Entrar',
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style: TextStyle(
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fontSize: 24,
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fontWeight: FontWeight.bold,
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color: Theme.of(
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context,
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).colorScheme.onSurface,
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),
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),
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const SizedBox(height: 24),
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// Email field
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TextFormField(
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controller: _emailController,
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keyboardType: TextInputType.emailAddress,
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style: TextStyle(
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color: Theme.of(
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context,
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).colorScheme.onSurface,
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),
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decoration: InputDecoration(
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labelText: 'Email',
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labelStyle: TextStyle(
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color: Theme.of(
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context,
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).colorScheme.onSurface,
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),
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hintStyle: TextStyle(
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color: Theme.of(
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context,
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).colorScheme.onSurfaceVariant,
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),
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prefixIcon: Icon(
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Icons.email,
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color: Theme.of(
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context,
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).colorScheme.primary,
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),
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border: InputBorder.none,
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enabledBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: BorderSide(
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color: Theme.of(
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context,
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).colorScheme.outline.withOpacity(0.5),
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),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: BorderSide(
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color: Theme.of(
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context,
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).colorScheme.primary,
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),
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),
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filled: true,
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fillColor: Theme.of(
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context,
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).colorScheme.surface,
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),
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validator: (value) {
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if (value == null || value.isEmpty) {
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return 'Email é obrigatório';
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}
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if (!value.contains('@')) {
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return 'Email inválido';
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}
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return null;
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},
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),
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const SizedBox(height: 16),
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// Password field
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TextFormField(
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controller: _passwordController,
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obscureText: _obscurePassword,
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style: TextStyle(
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color: Theme.of(
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context,
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).colorScheme.onSurface,
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),
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decoration: InputDecoration(
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labelText: 'Palavra-passe',
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labelStyle: TextStyle(
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color: Theme.of(
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context,
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).colorScheme.onSurface,
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),
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hintStyle: TextStyle(
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color: Theme.of(
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context,
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).colorScheme.onSurfaceVariant,
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),
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prefixIcon: Icon(
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Icons.lock,
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color: Theme.of(
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context,
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).colorScheme.primary,
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),
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suffixIcon: IconButton(
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icon: Icon(
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_obscurePassword
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? Icons.visibility
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: Icons.visibility_off,
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color: Theme.of(
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context,
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).colorScheme.primary,
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),
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onPressed: () {
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setState(() {
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_obscurePassword = !_obscurePassword;
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});
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},
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),
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border: InputBorder.none,
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enabledBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: BorderSide(
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color: Theme.of(
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context,
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).colorScheme.outline.withOpacity(0.5),
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),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: BorderSide(
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color: Theme.of(
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context,
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).colorScheme.primary,
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),
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),
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filled: true,
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fillColor: Theme.of(
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context,
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).colorScheme.surface,
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),
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validator: (value) {
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if (value == null || value.isEmpty) {
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return 'Palavra-passe é obrigatória';
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}
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if (value.length < 6) {
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return 'Palavra-passe muito curta';
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}
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return null;
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},
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),
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const SizedBox(height: 12),
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// Remember me checkbox
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Row(
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children: [
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Checkbox(
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value: _rememberMe,
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onChanged: (bool? value) {
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setState(() {
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_rememberMe = value ?? false;
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});
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},
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activeColor: Theme.of(
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context,
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).colorScheme.primary,
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checkColor: Colors.white,
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),
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GestureDetector(
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onTap: () {
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setState(() {
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_rememberMe = !_rememberMe;
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});
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},
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child: Text(
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'Manter sessão iniciada',
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style: TextStyle(
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color: Theme.of(
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context,
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).colorScheme.onSurface,
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fontSize: 14,
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fontWeight: _rememberMe
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? FontWeight.w500
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: FontWeight.normal,
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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: 12),
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// Login button
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SizedBox(
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height: 50,
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child: ElevatedButton(
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onPressed: _isLoading ? null : _handleLogin,
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style: ElevatedButton.styleFrom(
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backgroundColor: Theme.of(
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context,
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).colorScheme.primary,
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foregroundColor: Colors.white,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(
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8.0,
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),
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),
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elevation: 2,
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),
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child: _isLoading
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? const SizedBox(
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width: 20,
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height: 20,
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child: CircularProgressIndicator(
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strokeWidth: 2,
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valueColor:
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AlwaysStoppedAnimation<Color>(
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Colors.white,
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),
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),
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)
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: Text(
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'Entrar',
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style: const TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.bold,
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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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// Signup link
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GestureDetector(
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onTap: () {
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context.go('/signup');
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},
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child: Text(
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'Não tem conta? Criar aqui',
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style: TextStyle(
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color: Theme.of(
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context,
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).colorScheme.primary,
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fontWeight: FontWeight.w500,
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),
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),
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),
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],
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),
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).animate().fadeIn(
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duration: const Duration(milliseconds: 1000),
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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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// Custom back button
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Positioned(
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top: 50,
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left: 16,
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child: Container(
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decoration: BoxDecoration(
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color: Theme.of(context).colorScheme.surface.withOpacity(0.8),
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borderRadius: BorderRadius.circular(12),
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boxShadow: [
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BoxShadow(
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color: Theme.of(
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context,
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).colorScheme.shadow.withOpacity(0.1),
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blurRadius: 8,
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offset: const Offset(0, 2),
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),
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],
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),
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child: IconButton(
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icon: Icon(
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Icons.arrow_back,
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color: Theme.of(context).colorScheme.onSurface,
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),
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onPressed: () => context.go('/role-selection'),
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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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