491 lines
15 KiB
Dart
491 lines
15 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_animate/flutter_animate.dart';
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import 'package:cloud_firestore/cloud_firestore.dart';
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import 'package:firebase_auth/firebase_auth.dart';
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import 'package:go_router/go_router.dart';
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import '../../../../core/services/auth_service.dart';
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import '../../../../core/utils/logger.dart';
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/// Página para gerenciar quizzes (eliminar quizzes feitos)
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class QuizManagementPage extends StatefulWidget {
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const QuizManagementPage({super.key});
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@override
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State<QuizManagementPage> createState() => _QuizManagementPageState();
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}
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class _QuizManagementPageState extends State<QuizManagementPage> {
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List<Map<String, dynamic>> _quizHistory = [];
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bool _loading = true;
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String _userRole = '';
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@override
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void initState() {
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super.initState();
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_loadUserRole();
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_loadQuizHistory();
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}
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Future<void> _loadUserRole() async {
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final user = AuthService.currentUser;
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if (user != null) {
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final userDoc = await FirebaseFirestore.instance
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.collection('users')
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.doc(user.uid)
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.get();
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if (userDoc.exists) {
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setState(() {
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_userRole = userDoc.data()?['role'] ?? '';
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});
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}
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}
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}
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Future<void> _loadQuizHistory() async {
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try {
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final user = AuthService.currentUser;
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if (user == null) return;
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Query query;
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if (_userRole == 'teacher') {
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// Professor: ver todos os quizzes criados
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query = FirebaseFirestore.instance
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.collection('teacherQuizzes')
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.where('teacherId', isEqualTo: user.uid)
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.orderBy('createdAt', descending: true);
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} else {
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// Aluno: ver quizzes criados pelo próprio aluno + conceitos dominados
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final results = await Future.wait([
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FirebaseFirestore.instance
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.collection('userStats')
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.doc(user.uid)
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.get(),
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FirebaseFirestore.instance
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.collection('quizHistory')
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.doc(user.uid)
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.collection('quizzes')
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.orderBy('createdAt', descending: true)
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.get(),
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]);
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final userStatsSnapshot = results[0] as DocumentSnapshot;
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final studentQuizzesSnapshot = results[1] as QuerySnapshot;
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List<Map<String, dynamic>> quizList = [];
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// Adicionar quizzes criados pelo aluno
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for (final doc in studentQuizzesSnapshot.docs) {
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final data = Map<String, dynamic>.from(doc.data() as Map);
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data['id'] = doc.id;
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data['title'] = data['materialName'] ?? 'Quiz sem nome';
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data['type'] = 'created';
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quizList.add(data);
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}
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// Adicionar conceitos dominados
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if (userStatsSnapshot.exists) {
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final stats = userStatsSnapshot.data() as Map<String, dynamic>?;
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if (stats != null) {
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final masteredConcepts =
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(stats['masteredConcepts'] as List<dynamic>?)
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?.map((c) => Map<String, dynamic>.from(c as Map))
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.toList() ??
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[];
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for (final concept in masteredConcepts) {
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quizList.add({
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'id': concept['conceptName'] ?? '',
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'title': concept['conceptName'] ?? 'Conceito sem nome',
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'score': concept['masteryLevel'] ?? 0,
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'totalQuestions': 100, // Simulado
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'completedAt': concept['masteredAt'] ?? Timestamp.now(),
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'type': 'concept',
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});
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}
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}
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}
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setState(() {
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_quizHistory = quizList;
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_loading = false;
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});
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return;
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}
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final snapshot = await query.get();
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setState(() {
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_quizHistory = snapshot.docs
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.map((doc) {
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final data = Map<String, dynamic>.from(doc.data() as Map);
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data['id'] = doc.id;
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return data;
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})
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.cast<Map<String, dynamic>>()
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.toList();
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_loading = false;
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});
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} catch (e) {
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Logger.error('Error loading quiz history: $e');
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setState(() {
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_loading = false;
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});
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}
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}
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Future<void> _deleteQuiz(String quizId, String quizTitle, String type) async {
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try {
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String confirmMessage;
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String successMessage;
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if (_userRole == 'teacher') {
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confirmMessage =
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'Tem certeza que deseja eliminar o quiz "$quizTitle"? Esta ação não pode ser desfeita.';
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successMessage = 'Quiz eliminado com sucesso!';
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} else {
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if (type == 'created') {
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confirmMessage =
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'Tem certeza que deseja eliminar seu quiz "$quizTitle"?';
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successMessage = 'Quiz eliminado com sucesso!';
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} else {
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confirmMessage =
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'Tem certeza que deseja remover o conceito "$quizTitle" do seu histórico?';
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successMessage = 'Conceito removido com sucesso!';
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}
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}
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final confirmed = await _showDeleteConfirmation(
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quizTitle,
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confirmMessage,
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);
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if (!confirmed) return;
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if (_userRole == 'teacher') {
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// Professor: eliminar quiz criado
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await FirebaseFirestore.instance
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.collection('teacherQuizzes')
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.doc(quizId)
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.delete();
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// Também eliminar do histórico de alunos
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final historySnapshot = await FirebaseFirestore.instance
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.collection('quizHistory')
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.where('quizId', isEqualTo: quizId)
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.get();
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for (final doc in historySnapshot.docs) {
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await doc.reference.delete();
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}
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} else {
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// Aluno: remover quiz criado ou conceito dominado
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if (type == 'created') {
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// Remover quiz criado pelo aluno
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final user = AuthService.currentUser;
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if (user != null) {
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await FirebaseFirestore.instance
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.collection('quizHistory')
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.doc(user.uid)
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.collection('quizzes')
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.doc(quizId)
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.delete();
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}
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} else {
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// Remover conceito dominado
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final user = AuthService.currentUser;
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if (user != null) {
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final userStatsDoc = await FirebaseFirestore.instance
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.collection('userStats')
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.doc(user.uid)
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.get();
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if (userStatsDoc.exists) {
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final userStats = userStatsDoc.data() as Map<String, dynamic>;
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final masteredConcepts =
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(userStats['masteredConcepts'] as List<dynamic>?)
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?.map((c) => Map<String, dynamic>.from(c as Map))
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.toList() ??
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[];
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// Encontrar o conceito específico para remover
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final conceptToRemove = masteredConcepts.firstWhere(
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(c) => c['conceptName'] == quizId,
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orElse: () => {},
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);
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if (conceptToRemove.isNotEmpty) {
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await FirebaseFirestore.instance
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.collection('userStats')
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.doc(user.uid)
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.update({
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'masteredConcepts': FieldValue.arrayRemove([
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conceptToRemove,
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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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_loadQuizHistory(); // Recarregar lista
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(successMessage),
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backgroundColor: Colors.green,
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),
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);
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}
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} catch (e) {
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Logger.error('Error deleting quiz: $e');
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('Erro ao eliminar: $e'),
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backgroundColor: Colors.red,
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),
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);
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}
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}
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}
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Future<bool> _showDeleteConfirmation(String quizTitle, String message) async {
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final result = await showDialog<bool>(
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context: context,
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builder: (context) => AlertDialog(
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title: Text(
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_userRole == 'teacher' ? 'Eliminar Quiz' : 'Confirmar Eliminação',
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),
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content: Text(message),
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actions: [
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TextButton(
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onPressed: () => Navigator.of(context).pop(false),
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child: const Text('Cancelar'),
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),
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ElevatedButton(
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onPressed: () => Navigator.of(context).pop(true),
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style: ElevatedButton.styleFrom(backgroundColor: Colors.red),
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child: const Text('Eliminar'),
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),
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],
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),
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);
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return result ?? false;
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}
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@override
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Widget build(BuildContext context) {
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final cs = Theme.of(context).colorScheme;
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return Scaffold(
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backgroundColor: cs.surface,
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appBar: AppBar(
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title: Text(
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_userRole == 'teacher' ? 'Gerenciar Quizzes' : 'Meu Histórico',
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),
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backgroundColor: cs.surface,
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foregroundColor: cs.onSurface,
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elevation: 0,
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leading: IconButton(
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icon: const Icon(Icons.arrow_back),
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onPressed: () {
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if (Navigator.of(context).canPop()) {
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Navigator.of(context).pop();
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} else {
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context.go(
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_userRole == 'teacher'
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? '/teacher-dashboard'
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: '/student-dashboard',
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);
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}
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},
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),
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),
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body: Container(
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decoration: BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.topCenter,
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end: Alignment.bottomCenter,
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colors: [cs.primary.withValues(alpha: 0.05), cs.surface],
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),
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),
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child: _loading
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? const Center(child: CircularProgressIndicator())
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: _quizHistory.isEmpty
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? _buildEmptyState()
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: ListView.builder(
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padding: const EdgeInsets.all(16),
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itemCount: _quizHistory.length,
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itemBuilder: (context, index) {
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final quiz = _quizHistory[index];
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return _buildQuizCard(quiz)
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.animate()
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.slideX(duration: const Duration(milliseconds: 300))
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.then(delay: Duration(milliseconds: index * 50));
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},
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),
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),
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);
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}
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Widget _buildEmptyState() {
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final cs = Theme.of(context).colorScheme;
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return Center(
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child: Padding(
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padding: const EdgeInsets.all(32),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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_userRole == 'teacher'
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? Icons.quiz_outlined
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: Icons.history_edu_outlined,
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size: 64,
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color: cs.onSurfaceVariant,
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),
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const SizedBox(height: 16),
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Text(
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_userRole == 'teacher'
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? 'Nenhum quiz criado'
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: 'Nenhum quiz no histórico',
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style: TextStyle(
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color: cs.onSurface,
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fontSize: 20,
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fontWeight: FontWeight.bold,
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),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 8),
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Text(
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_userRole == 'teacher'
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? 'Crie seu primeiro quiz para começar!'
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: 'Complete alguns quizzes para ver seu histórico aqui.',
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style: TextStyle(color: cs.onSurfaceVariant, fontSize: 14),
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textAlign: TextAlign.center,
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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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Widget _buildQuizCard(Map<String, dynamic> quiz) {
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final cs = Theme.of(context).colorScheme;
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return Container(
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margin: const EdgeInsets.only(bottom: 12),
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: cs.surface,
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borderRadius: BorderRadius.circular(16),
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border: Border.all(color: cs.outline.withValues(alpha: 0.2)),
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boxShadow: [
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BoxShadow(
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color: cs.shadow.withValues(alpha: 0.1),
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blurRadius: 10,
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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.start,
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children: [
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Row(
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children: [
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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quiz['title'] ?? 'Quiz sem título',
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style: TextStyle(
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color: cs.onSurface,
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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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const SizedBox(height: 4),
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if (_userRole == 'student' && quiz['score'] != null) ...[
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Text(
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'Pontuação: ${quiz['score']}/${quiz['totalQuestions'] ?? '?'}',
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style: TextStyle(
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color: cs.primary,
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fontSize: 14,
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fontWeight: FontWeight.w500,
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),
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),
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],
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Text(
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_userRole == 'teacher' || quiz['type'] == 'created'
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? 'Criado em: ${_formatDate(quiz['createdAt'])}'
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: 'Completado em: ${_formatDate(quiz['completedAt'])}',
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style: TextStyle(
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color: cs.onSurfaceVariant,
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fontSize: 12,
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),
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),
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],
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),
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),
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IconButton(
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onPressed: () => _deleteQuiz(
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quiz['id'],
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quiz['title'] ?? 'Quiz',
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quiz['type'] ?? 'unknown',
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),
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icon: Icon(Icons.delete_outline, color: Colors.red),
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tooltip: _userRole == 'teacher' ? 'Eliminar Quiz' : 'Remover',
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),
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],
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),
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if (_userRole == 'teacher' && quiz['classIds'] != null) ...[
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const SizedBox(height: 8),
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Wrap(
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spacing: 4,
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children: (quiz['classIds'] as List<dynamic>).map((classId) {
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return Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 8,
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vertical: 4,
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),
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decoration: BoxDecoration(
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color: cs.primaryContainer,
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borderRadius: BorderRadius.circular(8),
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),
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child: Text(
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'Disciplina: $classId',
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style: TextStyle(
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color: cs.onPrimaryContainer,
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fontSize: 10,
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),
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),
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);
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}).toList(),
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),
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],
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],
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),
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);
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}
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String _formatDate(dynamic date) {
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if (date == null) return 'Data desconhecida';
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DateTime dateTime;
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if (date is Timestamp) {
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dateTime = date.toDate();
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} else if (date is DateTime) {
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dateTime = date;
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} else {
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return 'Data desconhecida';
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}
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return '${dateTime.day}/${dateTime.month}/${dateTime.year}';
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}
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}
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