384 lines
15 KiB
Dart
Executable File
384 lines
15 KiB
Dart
Executable File
// lib/screens/daily_quiz_screen.dart
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import 'package:flutter/material.dart';
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import 'package:firebase_auth/firebase_auth.dart';
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import 'package:provider/provider.dart';
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import 'package:intl/intl.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'dart:math';
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import 'package:kzeduca_app/services/i18n_service.dart';
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import 'package:kzeduca_app/services/firebase_service.dart';
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import 'package:kzeduca_app/models/app_models.dart';
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class DailyQuizScreen extends StatefulWidget {
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final FinancialChallenge dailyChallenge;
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const DailyQuizScreen({super.key, required this.dailyChallenge});
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@override
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State<DailyQuizScreen> createState() => _DailyQuizScreenState();
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}
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class _DailyQuizScreenState extends State<DailyQuizScreen> {
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List<QuizQuestion> _questions = [];
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bool _isLoading = true;
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String _error = '';
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int _currentQuestionIndex = 0;
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int _score = 0;
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String? _selectedOption;
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bool _showAnswerFeedback = false;
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bool _quizFinished = false;
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@override
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void initState() {
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super.initState();
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_loadDailyQuizQuestions();
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}
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Future<void> _loadDailyQuizQuestions() async {
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final firebaseService = Provider.of<FirebaseService>(context, listen: false);
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setState(() {
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_isLoading = true;
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});
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try {
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final querySnapshot = await firebaseService.firestore
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.collection('artifacts')
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.doc('default-kzeduca-app')
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.collection('public')
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.doc('data')
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.collection('quizQuestions')
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.get();
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final allQuestions = querySnapshot.docs.map((doc) => QuizQuestion.fromFirestore(doc)).toList();
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if (allQuestions.length < 10) {
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throw Exception('Não há perguntas suficientes para o quiz diário.');
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}
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allQuestions.shuffle();
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_questions = allQuestions.take(10).toList();
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} catch (e) {
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setState(() {
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_error = "Erro ao carregar o quiz diário: $e";
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});
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} finally {
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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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}
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}
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void _showAlertDialog(String message, {bool isError = false}) {
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final i18n = Provider.of<I18nService>(context, listen: false);
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showDialog(
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context: context,
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builder: (ctx) => AlertDialog(
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title: Text(isError ? i18n.t('error_prefix') : 'Info'),
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content: Text(message),
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actions: <Widget>[
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TextButton(
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child: const Text('Ok'),
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onPressed: () {
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Navigator.of(ctx).pop();
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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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Future<void> _handleAnswer(String option) async {
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if (_showAnswerFeedback) return;
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setState(() {
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_selectedOption = option;
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_showAnswerFeedback = true;
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if (option == _questions[_currentQuestionIndex].answer) {
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_score++;
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}
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});
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await Future.delayed(const Duration(seconds: 2));
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if (mounted) {
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_handleNextQuestion();
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}
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}
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Future<void> _handleNextQuestion() async {
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setState(() {
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_selectedOption = null;
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_showAnswerFeedback = false;
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});
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if (_currentQuestionIndex < _questions.length - 1) {
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setState(() {
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_currentQuestionIndex++;
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});
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} else {
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await _saveDailyQuizResult();
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setState(() {
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_quizFinished = true;
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});
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}
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}
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Future<void> _saveDailyQuizResult() async {
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final i18n = Provider.of<I18nService>(context, listen: false);
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final firebaseService = Provider.of<FirebaseService>(context, listen: false);
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final userId = FirebaseAuth.instance.currentUser?.uid;
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if (userId == null) {
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_showAlertDialog(i18n.t('quiz_save_error'), isError: true);
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return;
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}
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try {
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await firebaseService.saveQuizResult(userId, {
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'score': _score,
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'totalQuestions': _questions.length,
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'timestamp': DateTime.now().toIso8601String(),
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'isDailyQuiz': true, // Marcar como quiz diário
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});
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final prefs = await SharedPreferences.getInstance();
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await prefs.setString('daily_quiz_completion_date', DateFormat('yyyy-MM-dd').format(DateTime.now()));
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final double scorePercentage = _score / _questions.length;
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if (scorePercentage >= 0.8) {
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_showBonusChallengeDialog();
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}
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_showAlertDialog(i18n.t('quiz_saved'));
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} catch (e) {
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_showAlertDialog(i18n.t('quiz_save_error'), isError: true);
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}
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}
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void _showBonusChallengeDialog() {
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final i18n = Provider.of<I18nService>(context, listen: false);
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showDialog(
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context: context,
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builder: (ctx) => AlertDialog(
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title: Text(i18n.t('bonus_daily_challenge'), style: TextStyle(color: Colors.amber)),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text('Parabéns, você acertou ${_score} de 10 perguntas e desbloqueou um desafio bônus!'),
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SizedBox(height: 10),
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Text(widget.dailyChallenge.nome, style: TextStyle(fontWeight: FontWeight.bold)),
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Text(widget.dailyChallenge.meta),
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],
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),
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actions: [
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TextButton(
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onPressed: () => Navigator.of(ctx).pop(),
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child: const Text('OK'),
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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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final i18n = Provider.of<I18nService>(context);
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return Scaffold(
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extendBodyBehindAppBar: true,
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appBar: AppBar(
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title: Text('Quiz Diário'),
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backgroundColor: Colors.purple[900]?.withOpacity(0.5),
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foregroundColor: Colors.white,
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elevation: 0,
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),
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body: Stack(
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children: [
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Container(
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decoration: const BoxDecoration(
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image: DecorationImage(
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image: AssetImage('assets/images/quiz_background.png'),
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fit: BoxFit.cover,
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),
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),
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),
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Center(
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child: SingleChildScrollView(
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padding: const EdgeInsets.all(16.0),
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child: Container(
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padding: const EdgeInsets.all(32.0),
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decoration: BoxDecoration(
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color: Colors.black.withOpacity(0.7),
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borderRadius: BorderRadius.circular(24.0),
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border: Border.all(color: Colors.white.withOpacity(0.2)),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.5),
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blurRadius: 32,
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offset: const Offset(0, 8),
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),
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],
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),
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constraints: const BoxConstraints(maxWidth: 600),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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if (_isLoading)
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const Center(child: CircularProgressIndicator())
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else if (_questions.isEmpty)
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Text(
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'Não foi possível carregar o quiz diário.',
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style: TextStyle(color: Colors.white.withOpacity(0.8)),
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textAlign: TextAlign.center,
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)
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else if (!_quizFinished)
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Column(
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children: [
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LinearProgressIndicator(
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value: (_currentQuestionIndex + 1) / _questions.length,
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backgroundColor: Colors.white.withOpacity(0.3),
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color: Colors.teal[400],
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minHeight: 10,
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borderRadius: BorderRadius.circular(5),
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),
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const SizedBox(height: 16),
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Text(
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'Questão ${_currentQuestionIndex + 1} de ${_questions.length}',
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style: TextStyle(fontSize: 14, color: Colors.white.withOpacity(0.6)),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 16),
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Text(
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_questions[_currentQuestionIndex].question,
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style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold, color: Colors.white),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 24),
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..._questions[_currentQuestionIndex].options.map((option) {
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bool isCorrect = option == _questions[_currentQuestionIndex].answer;
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bool isSelected = option == _selectedOption;
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return Padding(
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padding: const EdgeInsets.symmetric(vertical: 8.0),
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child: ElevatedButton(
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onPressed: _showAnswerFeedback ? null : () => _handleAnswer(option),
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style: ElevatedButton.styleFrom(
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backgroundColor: _showAnswerFeedback
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? (isCorrect ? Colors.green[500] : Colors.red[500])
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: Colors.black.withOpacity(0.4),
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foregroundColor: Colors.white,
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side: BorderSide(
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color: _showAnswerFeedback
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? (isCorrect ? Colors.green[400]! : Colors.red[400]!)
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: Colors.white.withOpacity(0.3),
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width: 1,
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),
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padding: const EdgeInsets.all(16),
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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elevation: isSelected ? 4 : 2,
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),
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child: Align(
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alignment: Alignment.centerLeft,
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child: Text(option, style: const TextStyle(fontSize: 16)),
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),
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),
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);
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}),
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if (_showAnswerFeedback) ...[
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const SizedBox(height: 16),
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Card(
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elevation: 4,
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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color: _selectedOption == _questions[_currentQuestionIndex].answer
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? Colors.green[900]?.withOpacity(0.6)
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: Colors.red[900]?.withOpacity(0.6),
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child: Padding(
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padding: const EdgeInsets.all(16.0),
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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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_selectedOption == _questions[_currentQuestionIndex].answer
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? i18n.t('correct')
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: i18n.t('incorrect'),
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style: const TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.bold,
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color: Colors.white,
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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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_questions[_currentQuestionIndex].explanation,
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style: TextStyle(fontSize: 16, color: Colors.white.withOpacity(0.9)),
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),
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],
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),
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),
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),
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],
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const SizedBox(height: 24),
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ElevatedButton.icon(
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onPressed: _showAnswerFeedback ? _handleNextQuestion : null,
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icon: Icon(_currentQuestionIndex < _questions.length - 1 ? Icons.arrow_forward : Icons.bar_chart),
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label: Text(
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_currentQuestionIndex < _questions.length - 1
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? i18n.t('next_question')
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: i18n.t('view_results'),
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),
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.blue[500],
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foregroundColor: Colors.white,
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padding: const EdgeInsets.symmetric(vertical: 16),
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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elevation: 8,
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shadowColor: Colors.blue[300]?.withOpacity(0.5),
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),
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),
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],
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)
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else if (_quizFinished)
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Column(
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children: [
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Icon(Icons.emoji_events, size: 80, color: Colors.amber[600]),
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const SizedBox(height: 16),
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Text(
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'Quiz Diário Concluído!',
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style: TextStyle(fontSize: 22, fontWeight: FontWeight.bold, color: Colors.white),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 10),
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Text(
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'Você acertou ${_score} de ${_questions.length} perguntas!',
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style: TextStyle(fontSize: 20, color: Colors.teal[300], fontWeight: FontWeight.bold),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 24),
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ElevatedButton.icon(
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onPressed: () {
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Navigator.of(context).pop();
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},
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icon: const Icon(Icons.arrow_back),
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label: const Text('Voltar para o Quiz Normal'),
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.teal[500],
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foregroundColor: Colors.white,
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padding: const EdgeInsets.symmetric(vertical: 16, horizontal: 30),
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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elevation: 8,
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),
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),
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],
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),
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],
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),
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),
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),
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),
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],
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),
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);
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}
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} |