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aba de turmas dos professores melhorada com tudo oque era suposto

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This commit is contained in:
240403
2026-05-24 16:48:18 +01:00
parent 895ce64c6f
commit f1a094979f
1 changed files with 737 additions and 156 deletions
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799
lib/features/classes/presentation/pages/class_students_page.dart
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@@ -1,7 +1,10 @@
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:flutter/material.dart';
import 'package:flutter_animate/flutter_animate.dart';
import 'package:go_router/go_router.dart';
import 'package:intl/intl.dart';
import '../../../../core/services/auth_service.dart';
import '../../../../core/theme/app_theme_extension.dart';
/// Página para visualizar os alunos de uma turma específica
class ClassStudentsPage extends StatefulWidget {
@@ -21,10 +24,13 @@ class ClassStudentsPage extends StatefulWidget {
class _ClassStudentsPageState extends State<ClassStudentsPage> {
bool _isCheckingAccess = true;
bool _accessGranted = false;
String _currentClassName = '';
String? _classCode;
@override
void initState() {
super.initState();
_currentClassName = widget.className;
_verifyOwnership();
}
@@ -53,15 +59,254 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
.get();
final teacherId = classDoc.data()?['teacherId'] as String?;
final code = classDoc.data()?['code'] as String?;
setState(() {
_isCheckingAccess = false;
_accessGranted = classDoc.exists && teacherId == currentUser.uid;
_classCode = code ?? '----';
});
}
Future<void> _updateClassName(String newName) async {
try {
await FirebaseFirestore.instance
.collection('classes')
.doc(widget.classId)
.update({'name': newName});
setState(() {
_currentClassName = newName;
});
if (mounted) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Row(
children: [
const Icon(Icons.check_circle, color: Colors.white),
const SizedBox(width: 12),
const Text('Nome da turma atualizado com sucesso'),
],
),
backgroundColor: Colors.green,
behavior: SnackBarBehavior.floating,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10),
),
duration: const Duration(seconds: 3),
),
);
}
} catch (e) {
if (mounted) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Row(
children: [
const Icon(Icons.error_outline, color: Colors.white),
const SizedBox(width: 12),
Text('Erro ao atualizar nome: $e'),
],
),
backgroundColor: Colors.red,
behavior: SnackBarBehavior.floating,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10),
),
duration: const Duration(seconds: 4),
),
);
}
}
}
Future<void> _deleteClass() async {
try {
// Delete all enrollments first
final enrollmentsSnapshot = await FirebaseFirestore.instance
.collection('enrollments')
.where('classId', isEqualTo: widget.classId)
.get();
final batch = FirebaseFirestore.instance.batch();
for (final doc in enrollmentsSnapshot.docs) {
batch.delete(doc.reference);
}
await batch.commit();
// Delete the class
await FirebaseFirestore.instance
.collection('classes')
.doc(widget.classId)
.delete();
if (mounted) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Row(
children: [
const Icon(Icons.check_circle, color: Colors.white),
const SizedBox(width: 12),
const Text('Turma eliminada com sucesso'),
],
),
backgroundColor: Colors.green,
behavior: SnackBarBehavior.floating,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10),
),
duration: const Duration(seconds: 3),
),
);
context.pop();
}
} catch (e) {
if (mounted) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Row(
children: [
const Icon(Icons.error_outline, color: Colors.white),
const SizedBox(width: 12),
Text('Erro ao eliminar turma: $e'),
],
),
backgroundColor: Colors.red,
behavior: SnackBarBehavior.floating,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10),
),
duration: const Duration(seconds: 4),
),
);
}
}
}
void _showEditClassNameDialog() {
final textController = TextEditingController(text: _currentClassName);
showDialog(
context: context,
builder: (context) => AlertDialog(
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
title: Row(
children: [
Icon(Icons.edit, color: Theme.of(context).colorScheme.primary),
const SizedBox(width: 8),
const Text('Editar Nome'),
],
),
content: TextField(
controller: textController,
decoration: InputDecoration(
labelText: 'Nome da Turma',
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
),
prefixIcon: const Icon(Icons.school),
),
autofocus: true,
maxLength: 50,
),
actions: [
TextButton(
onPressed: () => Navigator.of(context).pop(),
child: const Text('Cancelar'),
),
FilledButton(
onPressed: () {
final newName = textController.text.trim();
if (newName.isNotEmpty && newName != _currentClassName) {
Navigator.of(context).pop();
_updateClassName(newName);
}
},
child: const Text('Guardar'),
),
],
),
);
}
void _showDeleteClassDialog() {
showDialog(
context: context,
builder: (context) => AlertDialog(
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
title: Row(
children: [
Icon(Icons.warning, color: Theme.of(context).colorScheme.error),
const SizedBox(width: 8),
const Text('Eliminar Turma'),
],
),
content: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'Tens a certeza que desejas eliminar a turma "$_currentClassName"?',
style: const TextStyle(fontSize: 14),
),
const SizedBox(height: 12),
Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: Theme.of(context).colorScheme.error.withValues(alpha: 0.1),
borderRadius: BorderRadius.circular(8),
border: Border.all(
color: Theme.of(context).colorScheme.error.withValues(alpha: 0.3),
),
),
child: Row(
children: [
Icon(
Icons.warning_amber,
color: Theme.of(context).colorScheme.error,
size: 20,
),
const SizedBox(width: 8),
Expanded(
child: Text(
'Esta ação não pode ser desfeita. Todos os alunos serão removidos.',
style: TextStyle(
fontSize: 12,
color: Theme.of(context).colorScheme.error,
),
),
),
],
),
),
],
),
actions: [
TextButton(
onPressed: () => Navigator.of(context).pop(),
child: const Text('Cancelar'),
),
FilledButton(
onPressed: () {
Navigator.of(context).pop();
_deleteClass();
},
style: FilledButton.styleFrom(
backgroundColor: Theme.of(context).colorScheme.error,
foregroundColor: Colors.white,
),
child: const Text('Eliminar'),
),
],
),
);
}
@override
Widget build(BuildContext context) {
final cs = Theme.of(context).colorScheme;
final themeExtras = AppThemeExtras.of(context);
if (_isCheckingAccess) {
return Scaffold(
@@ -73,12 +318,6 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
if (!_accessGranted) {
return Scaffold(
backgroundColor: cs.surface,
appBar: AppBar(
backgroundColor: cs.surface,
foregroundColor: cs.onSurface,
elevation: 0,
title: const Text('Acesso Negado'),
),
body: Center(
child: Padding(
padding: const EdgeInsets.all(32.0),
@@ -109,34 +348,24 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
}
return Scaffold(
backgroundColor: cs.surface,
appBar: AppBar(
backgroundColor: cs.surface,
foregroundColor: cs.onSurface,
elevation: 0,
title: Column(
crossAxisAlignment: CrossAxisAlignment.start,
body: Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
colors: themeExtras.dashboardBackgroundGradient,
stops: themeExtras.dashboardGradientStops,
),
),
child: SafeArea(
top: false,
child: Column(
children: [
Text(
widget.className,
style: TextStyle(
color: cs.onSurface,
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
Text(
'Alunos Matriculados',
style: TextStyle(
color: cs.onSurfaceVariant,
fontSize: 13,
fontWeight: FontWeight.w400,
),
),
],
),
),
body: StreamBuilder<QuerySnapshot>(
// Custom AppBar
_buildAppBar(cs),
// Main Content
Expanded(
child: StreamBuilder<QuerySnapshot>(
stream: FirebaseFirestore.instance
.collection('enrollments')
.where('classId', isEqualTo: widget.classId)
@@ -144,7 +373,9 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
.snapshots(),
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return Center(child: CircularProgressIndicator(color: cs.primary));
return Center(
child: CircularProgressIndicator(color: cs.primary),
);
}
if (snapshot.hasError) {
@@ -160,7 +391,10 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
const SizedBox(height: 16),
Text(
'Erro ao carregar alunos',
style: TextStyle(color: cs.onSurfaceVariant, fontSize: 16),
style: TextStyle(
color: cs.onSurfaceVariant,
fontSize: 16,
),
),
],
),
@@ -170,91 +404,416 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
final enrollments = snapshot.data?.docs ?? [];
if (enrollments.isEmpty) {
return Center(
child: Padding(
padding: const EdgeInsets.all(32),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.people_outline,
size: 64,
color: cs.onSurfaceVariant.withValues(alpha: 0.4),
return _buildEmptyState(cs);
}
return _buildStudentsList(cs, enrollments);
},
),
const SizedBox(height: 24),
Text(
'Nenhum aluno entrou nesta turma ainda.',
style: TextStyle(
color: cs.onSurfaceVariant,
fontSize: 16,
),
textAlign: TextAlign.center,
),
const SizedBox(height: 8),
Text(
'Partilha o código da turma para os alunos se juntarem.',
style: TextStyle(
color: cs.onSurfaceVariant.withValues(alpha: 0.7),
fontSize: 13,
),
textAlign: TextAlign.center,
),
],
),
),
),
);
}
return ListView.separated(
padding: const EdgeInsets.all(16),
itemCount: enrollments.length,
separatorBuilder: (_, __) => const SizedBox(height: 12),
itemBuilder: (context, index) {
final enrollment =
enrollments[index].data() as Map<String, dynamic>;
final studentName =
enrollment['studentName'] as String? ?? 'Aluno sem nome';
final joinedAt = enrollment['joinedAt'] as Timestamp?;
final enrollmentId = enrollments[index].id;
Widget _buildAppBar(ColorScheme cs) {
return Container(
padding: const EdgeInsets.only(
left: 16,
right: 16,
top: 52,
bottom: 16,
),
child: Column(
children: [
// Top Row with Back and Actions
Row(
children: [
Container(
decoration: BoxDecoration(
color: cs.surface,
borderRadius: BorderRadius.circular(16),
border: Border.all(color: cs.outline.withValues(alpha: 0.15)),
boxShadow: [
BoxShadow(
color: cs.shadow.withValues(alpha: 0.05),
blurRadius: 8,
offset: const Offset(0, 2),
color: Colors.white.withValues(alpha: 0.2),
borderRadius: BorderRadius.circular(12),
),
child: IconButton(
icon: const Icon(Icons.arrow_back, color: Colors.white),
onPressed: () => context.pop(),
tooltip: 'Voltar',
),
),
const Spacer(),
// Edit Button
Container(
decoration: BoxDecoration(
color: Colors.white.withValues(alpha: 0.2),
borderRadius: BorderRadius.circular(12),
),
child: IconButton(
icon: const Icon(Icons.edit, color: Colors.white),
onPressed: _showEditClassNameDialog,
tooltip: 'Editar nome',
),
),
const SizedBox(width: 8),
// Delete Button
Container(
decoration: BoxDecoration(
color: Colors.red.withValues(alpha: 0.2),
borderRadius: BorderRadius.circular(12),
),
child: IconButton(
icon: const Icon(Icons.delete_outline, color: Colors.white),
onPressed: _showDeleteClassDialog,
tooltip: 'Eliminar turma',
),
),
],
),
child: ListTile(
contentPadding: const EdgeInsets.symmetric(
horizontal: 16,
vertical: 8,
const SizedBox(height: 20),
// Class Info Card
Container(
width: double.infinity,
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(
color: Colors.white.withValues(alpha: 0.15),
borderRadius: BorderRadius.circular(20),
border: Border.all(
color: Colors.white.withValues(alpha: 0.2),
width: 1,
),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: Colors.white.withValues(alpha: 0.2),
borderRadius: BorderRadius.circular(12),
),
child: const Icon(
Icons.school,
color: Colors.white,
size: 28,
),
),
const SizedBox(width: 16),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
_currentClassName,
style: const TextStyle(
color: Colors.white,
fontSize: 24,
fontWeight: FontWeight.bold,
),
maxLines: 1,
overflow: TextOverflow.ellipsis,
),
const SizedBox(height: 4),
Text(
'Código: $_classCode',
style: TextStyle(
color: Colors.white.withValues(alpha: 0.8),
fontSize: 14,
),
),
],
),
),
],
),
const SizedBox(height: 16),
// Stats Row
Container(
padding: const EdgeInsets.symmetric(
horizontal: 16,
vertical: 12,
),
decoration: BoxDecoration(
color: Colors.white.withValues(alpha: 0.1),
borderRadius: BorderRadius.circular(12),
),
child: StreamBuilder<QuerySnapshot>(
stream: FirebaseFirestore.instance
.collection('enrollments')
.where('classId', isEqualTo: widget.classId)
.snapshots(),
builder: (context, snapshot) {
final count = snapshot.data?.docs.length ?? 0;
return Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
const Icon(
Icons.people,
color: Colors.white,
size: 20,
),
const SizedBox(width: 8),
Text(
'$count ${count == 1 ? 'aluno matriculado' : 'alunos matriculados'}',
style: const TextStyle(
color: Colors.white,
fontSize: 14,
fontWeight: FontWeight.w500,
),
),
],
);
},
),
),
],
),
).animate().fadeIn(
duration: const Duration(milliseconds: 400),
curve: Curves.easeOut,
),
],
),
);
}
Widget _buildEmptyState(ColorScheme cs) {
return SingleChildScrollView(
padding: const EdgeInsets.all(24),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
const SizedBox(height: 40),
Container(
padding: const EdgeInsets.all(24),
decoration: BoxDecoration(
color: cs.surface,
borderRadius: BorderRadius.circular(24),
boxShadow: [
BoxShadow(
color: cs.shadow.withValues(alpha: 0.08),
blurRadius: 20,
offset: const Offset(0, 8),
),
],
),
child: Column(
children: [
Icon(
Icons.people_outline,
size: 80,
color: cs.primary.withValues(alpha: 0.5),
),
const SizedBox(height: 24),
Text(
'Nenhum aluno entrou nesta turma ainda.',
style: TextStyle(
color: cs.onSurface,
fontSize: 18,
fontWeight: FontWeight.w600,
),
textAlign: TextAlign.center,
),
const SizedBox(height: 12),
Text(
'Partilha o código da turma para os alunos se juntarem.',
style: TextStyle(
color: cs.onSurfaceVariant,
fontSize: 14,
),
textAlign: TextAlign.center,
),
const SizedBox(height: 24),
Container(
padding: const EdgeInsets.symmetric(
horizontal: 20,
vertical: 12,
),
decoration: BoxDecoration(
color: cs.primary.withValues(alpha: 0.1),
borderRadius: BorderRadius.circular(12),
border: Border.all(
color: cs.primary.withValues(alpha: 0.3),
),
),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Icon(Icons.copy, color: cs.primary, size: 18),
const SizedBox(width: 8),
Text(
'Código: $_classCode',
style: TextStyle(
color: cs.primary,
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
],
),
),
],
),
).animate().fadeIn(
duration: const Duration(milliseconds: 400),
curve: Curves.easeOut,
).then(delay: const Duration(milliseconds: 100)),
],
),
);
}
Widget _buildStudentsList(
ColorScheme cs,
List<QueryDocumentSnapshot> enrollments,
) {
return SingleChildScrollView(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// Section Title
Container(
margin: const EdgeInsets.only(bottom: 16, left: 8),
child: Row(
children: [
Icon(
Icons.people,
color: cs.onSurface,
size: 20,
),
const SizedBox(width: 8),
Text(
'Alunos Matriculados',
style: TextStyle(
color: cs.onSurface,
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
const SizedBox(width: 8),
Container(
padding: const EdgeInsets.symmetric(
horizontal: 8,
vertical: 4,
),
leading: Container(
width: 48,
height: 48,
decoration: BoxDecoration(
color: cs.primary.withValues(alpha: 0.1),
borderRadius: BorderRadius.circular(12),
),
child: Icon(Icons.person, color: cs.primary, size: 24),
child: Text(
'${enrollments.length}',
style: TextStyle(
color: cs.primary,
fontSize: 12,
fontWeight: FontWeight.bold,
),
title: Text(
),
),
],
),
),
// Students List
...enrollments.asMap().entries.map((entry) {
final index = entry.key;
final enrollment = entry.value.data() as Map<String, dynamic>;
final studentName =
enrollment['studentName'] as String? ?? 'Aluno sem nome';
final joinedAt = enrollment['joinedAt'] as Timestamp?;
final enrollmentId = entry.value.id;
return _buildStudentCard(
cs,
studentName,
joinedAt,
enrollmentId,
index,
);
}),
const SizedBox(height: 24),
],
),
);
}
Widget _buildStudentCard(
ColorScheme cs,
String studentName,
Timestamp? joinedAt,
String enrollmentId,
int index,
) {
return Container(
margin: const EdgeInsets.only(bottom: 12),
decoration: BoxDecoration(
color: cs.surface,
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: cs.shadow.withValues(alpha: 0.06),
blurRadius: 12,
offset: const Offset(0, 4),
),
],
),
child: Material(
color: Colors.transparent,
borderRadius: BorderRadius.circular(16),
child: InkWell(
borderRadius: BorderRadius.circular(16),
onTap: null,
child: Padding(
padding: const EdgeInsets.all(16),
child: Row(
children: [
// Avatar
Container(
width: 52,
height: 52,
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: [
cs.primary.withValues(alpha: 0.8),
cs.primary.withValues(alpha: 0.4),
],
),
borderRadius: BorderRadius.circular(14),
),
child: Center(
child: Text(
studentName.isNotEmpty
? studentName[0].toUpperCase()
: '?',
style: const TextStyle(
color: Colors.white,
fontSize: 22,
fontWeight: FontWeight.bold,
),
),
),
),
const SizedBox(width: 16),
// Info
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
studentName,
style: TextStyle(
color: cs.onSurface,
fontSize: 15,
fontSize: 16,
fontWeight: FontWeight.w600,
),
maxLines: 1,
overflow: TextOverflow.ellipsis,
),
subtitle: Padding(
padding: const EdgeInsets.only(top: 4),
child: Text(
const SizedBox(height: 4),
Text(
joinedAt != null
? 'Entrou em ${_formatDate(joinedAt.toDate())}'
: 'Data desconhecida',
@@ -263,23 +822,36 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
fontSize: 13,
),
),
],
),
trailing: IconButton(
icon: Icon(Icons.delete_outline, color: cs.error),
),
// Delete Button
Container(
decoration: BoxDecoration(
color: cs.error.withValues(alpha: 0.1),
borderRadius: BorderRadius.circular(10),
),
child: IconButton(
icon: Icon(Icons.delete_outline, color: cs.error, size: 20),
onPressed: () => _showRemoveStudentDialog(
context,
enrollmentId,
studentName,
),
tooltip: 'Remover aluno',
padding: const EdgeInsets.all(10),
constraints: const BoxConstraints(),
),
),
);
},
);
},
],
),
);
),
),
),
).animate().fadeIn(
duration: const Duration(milliseconds: 300),
curve: Curves.easeOut,
).then(delay: Duration(milliseconds: index * 50));
}
String _formatDate(DateTime date) {
@@ -294,19 +866,28 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
final confirmed = await showDialog<bool>(
context: context,
builder: (context) => AlertDialog(
title: const Text('Remover Aluno'),
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
title: Row(
children: [
Icon(Icons.person_remove, color: Theme.of(context).colorScheme.error),
const SizedBox(width: 8),
const Text('Remover Aluno'),
],
),
content: Text(
'Tem a certeza que deseja remover $studentName desta turma?',
'Tens a certeza que desejas remover $studentName desta turma?',
style: const TextStyle(fontSize: 14),
),
actions: [
TextButton(
onPressed: () => Navigator.of(context).pop(false),
child: const Text('Cancelar'),
),
TextButton(
FilledButton(
onPressed: () => Navigator.of(context).pop(true),
style: TextButton.styleFrom(
foregroundColor: Theme.of(context).colorScheme.error,
style: FilledButton.styleFrom(
backgroundColor: Theme.of(context).colorScheme.error,
foregroundColor: Colors.white,
),
child: const Text('Remover'),
),
@@ -326,7 +907,7 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
SnackBar(
content: Row(
children: [
Icon(Icons.check_circle, color: Colors.white),
const Icon(Icons.check_circle, color: Colors.white),
const SizedBox(width: 12),
const Text('Aluno removido com sucesso'),
],
@@ -346,7 +927,7 @@ class _ClassStudentsPageState extends State<ClassStudentsPage> {
SnackBar(
content: Row(
children: [
Icon(Icons.error_outline, color: Colors.white),
const Icon(Icons.error_outline, color: Colors.white),
const SizedBox(width: 12),
Text('Erro ao remover aluno: $e'),
],