644 lines
25 KiB
Dart
644 lines
25 KiB
Dart
import 'package:cloud_firestore/cloud_firestore.dart';
|
|
import 'package:flutter/material.dart';
|
|
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
|
import '../../../../core/services/auth_service.dart';
|
|
|
|
/// Página para o aluno entrar numa disciplina usando o código
|
|
class JoinClassPage extends ConsumerStatefulWidget {
|
|
const JoinClassPage({super.key});
|
|
|
|
@override
|
|
ConsumerState<JoinClassPage> createState() => _JoinClassPageState();
|
|
}
|
|
|
|
class _JoinClassPageState extends ConsumerState<JoinClassPage> {
|
|
final _codeController = TextEditingController();
|
|
final _nameController = TextEditingController();
|
|
bool _isLoading = false;
|
|
|
|
@override
|
|
void dispose() {
|
|
_codeController.dispose();
|
|
_nameController.dispose();
|
|
super.dispose();
|
|
}
|
|
|
|
Future<void> _joinClass() async {
|
|
final code = _codeController.text.trim().toUpperCase();
|
|
final customName = _nameController.text.trim();
|
|
|
|
if (code.isEmpty) {
|
|
_showError('Insere o código da disciplina');
|
|
return;
|
|
}
|
|
|
|
if (customName.isEmpty) {
|
|
_showError('Insere o nome da disciplina');
|
|
return;
|
|
}
|
|
|
|
setState(() => _isLoading = true);
|
|
|
|
try {
|
|
final currentUser = AuthService.currentUser;
|
|
|
|
if (currentUser == null) {
|
|
setState(() => _isLoading = false);
|
|
_showError('Erro: Utilizador não autenticado');
|
|
return;
|
|
}
|
|
|
|
// Verificar role — apenas alunos podem entrar por código
|
|
final userRole = await AuthService.getUserRole(currentUser.uid);
|
|
if (userRole != 'student') {
|
|
setState(() => _isLoading = false);
|
|
_showError('Apenas alunos podem entrar em disciplinas por código.');
|
|
return;
|
|
}
|
|
|
|
// Ler schoolClassId autorizado do aluno (definido no registo)
|
|
final studentSchoolClassId = await AuthService.getStudentSchoolClassId(
|
|
currentUser.uid,
|
|
);
|
|
|
|
// Procurar disciplina pelo código
|
|
final classQuery = await FirebaseFirestore.instance
|
|
.collection('classes')
|
|
.where('code', isEqualTo: code)
|
|
.limit(1)
|
|
.get();
|
|
|
|
if (classQuery.docs.isEmpty) {
|
|
setState(() => _isLoading = false);
|
|
_showError('Código de disciplina inválido');
|
|
return;
|
|
}
|
|
|
|
final classDoc = classQuery.docs.first;
|
|
final classId = classDoc.id;
|
|
final classSchoolClassId = classDoc.data()['schoolClassId'] as String?;
|
|
|
|
// Verificar se o aluno está autorizado a entrar nesta disciplina
|
|
// O schoolClassId do aluno deve corresponder ao schoolClassId da disciplina
|
|
if (studentSchoolClassId == null ||
|
|
classSchoolClassId == null ||
|
|
studentSchoolClassId != classSchoolClassId) {
|
|
setState(() => _isLoading = false);
|
|
_showError(
|
|
'Não tens permissão para entrar nesta disciplina.\n'
|
|
'O teu professor ainda não te adicionou a esta disciplina.',
|
|
);
|
|
return;
|
|
}
|
|
|
|
// Verificar se já está inscrito nesta disciplina
|
|
final existingEnrollment = await FirebaseFirestore.instance
|
|
.collection('enrollments')
|
|
.where('classId', isEqualTo: classId)
|
|
.where('studentId', isEqualTo: currentUser.uid)
|
|
.limit(1)
|
|
.get();
|
|
|
|
if (existingEnrollment.docs.isNotEmpty) {
|
|
setState(() => _isLoading = false);
|
|
_showError('Já estás inscrito nesta disciplina');
|
|
return;
|
|
}
|
|
|
|
// Criar documento de inscrição
|
|
await FirebaseFirestore.instance.collection('enrollments').add({
|
|
'classId': classId,
|
|
'studentId': currentUser.uid,
|
|
'studentName':
|
|
currentUser.displayName ??
|
|
currentUser.email?.split('@')[0] ??
|
|
'Aluno',
|
|
'customClassName': customName,
|
|
'joinedAt': FieldValue.serverTimestamp(),
|
|
});
|
|
|
|
setState(() => _isLoading = false);
|
|
|
|
// Mostrar sucesso
|
|
if (mounted) {
|
|
final colorScheme = Theme.of(context).colorScheme;
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
SnackBar(
|
|
content: Row(
|
|
children: [
|
|
Icon(Icons.check_circle, color: Colors.white),
|
|
const SizedBox(width: 8),
|
|
const Text('Entraste na disciplina com sucesso!'),
|
|
],
|
|
),
|
|
backgroundColor: colorScheme.primary,
|
|
duration: const Duration(seconds: 2),
|
|
behavior: SnackBarBehavior.floating,
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(8),
|
|
),
|
|
),
|
|
);
|
|
|
|
// Voltar para a home
|
|
Navigator.of(context).pop();
|
|
}
|
|
} catch (e) {
|
|
setState(() => _isLoading = false);
|
|
_showError('Erro ao entrar na disciplina: $e');
|
|
}
|
|
}
|
|
|
|
void _showError(String message) {
|
|
final colorScheme = Theme.of(context).colorScheme;
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
SnackBar(
|
|
content: Row(
|
|
children: [
|
|
Icon(Icons.error_outline, color: Colors.white),
|
|
const SizedBox(width: 8),
|
|
Expanded(child: Text(message)),
|
|
],
|
|
),
|
|
backgroundColor: colorScheme.error,
|
|
duration: const Duration(seconds: 3),
|
|
behavior: SnackBarBehavior.floating,
|
|
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
|
|
),
|
|
);
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
final theme = Theme.of(context);
|
|
final colorScheme = theme.colorScheme;
|
|
final isDark = theme.brightness == Brightness.dark;
|
|
|
|
return Scaffold(
|
|
body: Container(
|
|
decoration: BoxDecoration(
|
|
gradient: LinearGradient(
|
|
begin: Alignment.topLeft,
|
|
end: Alignment.bottomRight,
|
|
colors: isDark
|
|
? [
|
|
colorScheme.surfaceContainerHighest,
|
|
colorScheme.surface,
|
|
colorScheme.surfaceContainerLow,
|
|
]
|
|
: const [
|
|
Color(0xFFD4E8E8),
|
|
Color(0xFFE8D4C0),
|
|
Color(0xFFD8E0E8),
|
|
],
|
|
),
|
|
),
|
|
child: SafeArea(
|
|
child: Column(
|
|
children: [
|
|
// Custom AppBar
|
|
Container(
|
|
padding: const EdgeInsets.all(16.0),
|
|
child: Row(
|
|
children: [
|
|
IconButton(
|
|
icon: Icon(
|
|
Icons.arrow_back,
|
|
color: colorScheme.onSurface,
|
|
),
|
|
onPressed: () => Navigator.of(context).pop(),
|
|
),
|
|
Expanded(
|
|
child: Text(
|
|
'Adicionar uma Disciplina',
|
|
style: TextStyle(
|
|
color: colorScheme.onSurface,
|
|
fontSize: 18,
|
|
fontWeight: FontWeight.bold,
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
// Body content
|
|
Expanded(
|
|
child: SingleChildScrollView(
|
|
padding: const EdgeInsets.all(24.0),
|
|
child: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
const SizedBox(height: 20),
|
|
// Header illustration card
|
|
Center(
|
|
child: Card(
|
|
elevation: isDark ? 4 : 8,
|
|
shadowColor: isDark
|
|
? Colors.black.withOpacity(0.4)
|
|
: Colors.black.withOpacity(0.1),
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(20),
|
|
),
|
|
child: Container(
|
|
width: double.infinity,
|
|
padding: const EdgeInsets.all(32),
|
|
decoration: BoxDecoration(
|
|
borderRadius: BorderRadius.circular(20),
|
|
gradient: LinearGradient(
|
|
begin: Alignment.topLeft,
|
|
end: Alignment.bottomRight,
|
|
colors: isDark
|
|
? [
|
|
colorScheme.primary.withOpacity(0.1),
|
|
colorScheme.secondary.withOpacity(0.05),
|
|
]
|
|
: [
|
|
colorScheme.primary.withOpacity(0.05),
|
|
colorScheme.secondary.withOpacity(0.02),
|
|
],
|
|
),
|
|
),
|
|
child: Column(
|
|
children: [
|
|
Container(
|
|
width: 80,
|
|
height: 80,
|
|
decoration: BoxDecoration(
|
|
color: colorScheme.primary.withOpacity(0.1),
|
|
borderRadius: BorderRadius.circular(20),
|
|
border: Border.all(
|
|
color: colorScheme.primary.withOpacity(
|
|
0.2,
|
|
),
|
|
width: 2,
|
|
),
|
|
),
|
|
child: Icon(
|
|
Icons.group_add,
|
|
color: colorScheme.primary,
|
|
size: 40,
|
|
),
|
|
),
|
|
const SizedBox(height: 24),
|
|
Text(
|
|
'Insere o código da disciplina',
|
|
style: theme.textTheme.headlineSmall
|
|
?.copyWith(
|
|
color: colorScheme.onSurface,
|
|
fontWeight: FontWeight.bold,
|
|
),
|
|
textAlign: TextAlign.center,
|
|
),
|
|
const SizedBox(height: 8),
|
|
Text(
|
|
'O professor partilhou contigo um código de 6 caracteres.',
|
|
style: theme.textTheme.bodyMedium?.copyWith(
|
|
color: colorScheme.onSurfaceVariant,
|
|
),
|
|
textAlign: TextAlign.center,
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
const SizedBox(height: 32),
|
|
|
|
// Instructions card
|
|
Card(
|
|
elevation: isDark ? 2 : 4,
|
|
shadowColor: isDark
|
|
? Colors.black.withOpacity(0.3)
|
|
: Colors.black.withOpacity(0.08),
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(16),
|
|
),
|
|
child: Padding(
|
|
padding: const EdgeInsets.all(20),
|
|
child: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
Row(
|
|
children: [
|
|
Icon(
|
|
Icons.info_outline,
|
|
color: colorScheme.primary,
|
|
size: 20,
|
|
),
|
|
const SizedBox(width: 8),
|
|
Text(
|
|
'Como funciona',
|
|
style: theme.textTheme.titleMedium
|
|
?.copyWith(
|
|
color: colorScheme.onSurface,
|
|
fontWeight: FontWeight.w600,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
const SizedBox(height: 12),
|
|
_buildInstructionItem(
|
|
context,
|
|
'1.',
|
|
'Pedir ao professor o código da disciplina',
|
|
colorScheme,
|
|
),
|
|
const SizedBox(height: 8),
|
|
_buildInstructionItem(
|
|
context,
|
|
'2.',
|
|
'Inserir o código no campo abaixo',
|
|
colorScheme,
|
|
),
|
|
const SizedBox(height: 8),
|
|
_buildInstructionItem(
|
|
context,
|
|
'3.',
|
|
'Escrever o nome da disciplina',
|
|
colorScheme,
|
|
),
|
|
const SizedBox(height: 8),
|
|
_buildInstructionItem(
|
|
context,
|
|
'4.',
|
|
'Clicar em "Adicionar uma Disciplina" para confirmar',
|
|
colorScheme,
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
const SizedBox(height: 32),
|
|
|
|
// Campo de código
|
|
Container(
|
|
decoration: BoxDecoration(
|
|
color: theme.cardColor,
|
|
borderRadius: BorderRadius.circular(16),
|
|
border: Border.all(
|
|
color: colorScheme.outline.withOpacity(0.3),
|
|
width: 1,
|
|
),
|
|
boxShadow: [
|
|
BoxShadow(
|
|
color: isDark
|
|
? Colors.black.withOpacity(0.2)
|
|
: Colors.black.withOpacity(0.05),
|
|
blurRadius: 10,
|
|
offset: const Offset(0, 2),
|
|
),
|
|
],
|
|
),
|
|
child: TextField(
|
|
controller: _codeController,
|
|
textCapitalization: TextCapitalization.characters,
|
|
maxLength: 6,
|
|
style: theme.textTheme.headlineMedium?.copyWith(
|
|
fontWeight: FontWeight.bold,
|
|
letterSpacing: 8,
|
|
color: colorScheme.onSurface,
|
|
),
|
|
textAlign: TextAlign.center,
|
|
decoration: InputDecoration(
|
|
hintText: 'XXXXXX',
|
|
hintStyle: theme.textTheme.headlineMedium?.copyWith(
|
|
fontWeight: FontWeight.bold,
|
|
letterSpacing: 8,
|
|
color: colorScheme.onSurfaceVariant.withOpacity(
|
|
0.5,
|
|
),
|
|
),
|
|
border: InputBorder.none,
|
|
contentPadding: const EdgeInsets.all(24),
|
|
counterText: '',
|
|
prefixIcon: Icon(
|
|
Icons.vpn_key,
|
|
color: colorScheme.primary,
|
|
size: 24,
|
|
),
|
|
prefixIconConstraints: const BoxConstraints(
|
|
minWidth: 48,
|
|
minHeight: 48,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
const SizedBox(height: 24),
|
|
|
|
// Campo de nome da disciplina
|
|
Container(
|
|
decoration: BoxDecoration(
|
|
color: theme.cardColor,
|
|
borderRadius: BorderRadius.circular(16),
|
|
border: Border.all(
|
|
color: colorScheme.outline.withOpacity(0.3),
|
|
width: 1,
|
|
),
|
|
boxShadow: [
|
|
BoxShadow(
|
|
color: isDark
|
|
? Colors.black.withOpacity(0.2)
|
|
: Colors.black.withOpacity(0.05),
|
|
blurRadius: 10,
|
|
offset: const Offset(0, 2),
|
|
),
|
|
],
|
|
),
|
|
child: TextField(
|
|
controller: _nameController,
|
|
style: theme.textTheme.bodyLarge?.copyWith(
|
|
color: colorScheme.onSurface,
|
|
),
|
|
decoration: InputDecoration(
|
|
hintText: 'Nome da disciplina',
|
|
hintStyle: theme.textTheme.bodyLarge?.copyWith(
|
|
color: colorScheme.onSurfaceVariant.withOpacity(
|
|
0.5,
|
|
),
|
|
),
|
|
border: InputBorder.none,
|
|
contentPadding: const EdgeInsets.all(20),
|
|
prefixIcon: Icon(
|
|
Icons.edit,
|
|
color: colorScheme.primary,
|
|
size: 24,
|
|
),
|
|
prefixIconConstraints: const BoxConstraints(
|
|
minWidth: 48,
|
|
minHeight: 48,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
const SizedBox(height: 32),
|
|
|
|
// Botão de entrar
|
|
SizedBox(
|
|
width: double.infinity,
|
|
height: 56,
|
|
child: ElevatedButton(
|
|
onPressed: _isLoading ? null : _joinClass,
|
|
style: ElevatedButton.styleFrom(
|
|
backgroundColor: colorScheme.primary,
|
|
foregroundColor: colorScheme.onPrimary,
|
|
elevation: 2,
|
|
shadowColor: colorScheme.primary.withOpacity(0.3),
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(16),
|
|
),
|
|
disabledBackgroundColor: colorScheme.primary
|
|
.withOpacity(0.5),
|
|
),
|
|
child: _isLoading
|
|
? SizedBox(
|
|
width: 24,
|
|
height: 24,
|
|
child: CircularProgressIndicator(
|
|
color: colorScheme.onPrimary,
|
|
strokeWidth: 2,
|
|
),
|
|
)
|
|
: Row(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
|
Icon(
|
|
Icons.login,
|
|
size: 20,
|
|
color: colorScheme.onPrimary,
|
|
),
|
|
const SizedBox(width: 8),
|
|
Text(
|
|
'Adicionar uma Disciplina',
|
|
style: TextStyle(
|
|
fontSize: 16,
|
|
fontWeight: FontWeight.bold,
|
|
color: colorScheme.onPrimary,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
const SizedBox(height: 16),
|
|
|
|
// Help text
|
|
Center(
|
|
child: TextButton.icon(
|
|
onPressed: () {
|
|
_showHelpDialog(context, colorScheme);
|
|
},
|
|
icon: Icon(
|
|
Icons.help_outline,
|
|
size: 16,
|
|
color: colorScheme.primary,
|
|
),
|
|
label: Text(
|
|
'Precisas de ajuda?',
|
|
style: TextStyle(
|
|
color: colorScheme.primary,
|
|
fontSize: 14,
|
|
fontWeight: FontWeight.w500,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
Widget _buildInstructionItem(
|
|
BuildContext context,
|
|
String number,
|
|
String text,
|
|
ColorScheme colorScheme,
|
|
) {
|
|
final theme = Theme.of(context);
|
|
return Row(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
Container(
|
|
width: 24,
|
|
height: 24,
|
|
decoration: BoxDecoration(
|
|
color: colorScheme.primary,
|
|
borderRadius: BorderRadius.circular(12),
|
|
),
|
|
child: Center(
|
|
child: Text(
|
|
number,
|
|
style: const TextStyle(
|
|
color: Colors.white,
|
|
fontSize: 12,
|
|
fontWeight: FontWeight.bold,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
const SizedBox(width: 12),
|
|
Expanded(
|
|
child: Text(
|
|
text,
|
|
style: theme.textTheme.bodyMedium?.copyWith(
|
|
color: colorScheme.onSurfaceVariant,
|
|
),
|
|
),
|
|
),
|
|
],
|
|
);
|
|
}
|
|
|
|
void _showHelpDialog(BuildContext context, ColorScheme colorScheme) {
|
|
showDialog(
|
|
context: context,
|
|
builder: (context) => AlertDialog(
|
|
backgroundColor: Theme.of(context).cardColor,
|
|
title: Row(
|
|
children: [
|
|
Icon(Icons.help_outline, color: colorScheme.primary),
|
|
const SizedBox(width: 8),
|
|
Expanded(
|
|
child: Text(
|
|
'Ajuda - Código da Disciplina',
|
|
style: TextStyle(color: colorScheme.onSurface),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
content: SingleChildScrollView(
|
|
child: Column(
|
|
mainAxisSize: MainAxisSize.min,
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
Text(
|
|
'O código da disciplina é um código único de 6 caracteres que o teu professor cria para cada disciplina.',
|
|
style: TextStyle(color: colorScheme.onSurfaceVariant),
|
|
),
|
|
const SizedBox(height: 12),
|
|
Text(
|
|
'Se não tens o código, contacta o teu professor.',
|
|
style: TextStyle(color: colorScheme.onSurfaceVariant),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
actions: [
|
|
TextButton(
|
|
onPressed: () => Navigator.of(context).pop(),
|
|
child: Text(
|
|
'Entendido',
|
|
style: TextStyle(color: colorScheme.primary),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|