657 lines
21 KiB
Dart
657 lines
21 KiB
Dart
import 'dart:async';
|
|
import 'dart:convert';
|
|
import 'package:flutter/material.dart';
|
|
import 'package:shared_preferences/shared_preferences.dart';
|
|
import 'package:http/http.dart' as http;
|
|
import 'package:bahasajepang/service/ujian_service.dart';
|
|
import 'package:bahasajepang/service/API_config.dart';
|
|
import 'package:bahasajepang/theme.dart';
|
|
|
|
class UjianPemulaPage extends StatefulWidget {
|
|
final int ujianId;
|
|
|
|
const UjianPemulaPage({Key? key, required this.ujianId}) : super(key: key);
|
|
|
|
@override
|
|
State<UjianPemulaPage> createState() => _UjianPemulaPageState();
|
|
}
|
|
|
|
class _UjianPemulaPageState extends State<UjianPemulaPage> {
|
|
final UjianService _ujianService = UjianService();
|
|
int _currentQuestionIndex = 0;
|
|
String? _selectedAnswer;
|
|
bool _isLoading = true;
|
|
bool _isSubmitting = false;
|
|
List<dynamic> _soalList = [];
|
|
List<Map<String, dynamic>> _jawabanUser = [];
|
|
Map<String, dynamic>? _hasilUjian;
|
|
String? _token;
|
|
String? _errorMessage;
|
|
|
|
late Duration _duration;
|
|
late Timer _timer;
|
|
bool _timeUp = false;
|
|
|
|
@override
|
|
void initState() {
|
|
super.initState();
|
|
_duration = const Duration(minutes: 2);
|
|
_loadInitialData();
|
|
}
|
|
|
|
@override
|
|
void dispose() {
|
|
_timer.cancel();
|
|
super.dispose();
|
|
}
|
|
|
|
void _startTimer() {
|
|
const oneSecond = Duration(seconds: 1);
|
|
_timer = Timer.periodic(oneSecond, (timer) {
|
|
if (_duration.inSeconds == 0) {
|
|
_timer.cancel();
|
|
setState(() {
|
|
_timeUp = true;
|
|
});
|
|
_autoSubmitAnswers();
|
|
} else {
|
|
setState(() {
|
|
_duration = _duration - oneSecond;
|
|
});
|
|
}
|
|
});
|
|
}
|
|
|
|
Future<void> _autoSubmitAnswers() async {
|
|
try {
|
|
setState(() => _isSubmitting = true);
|
|
_hasilUjian = await _ujianService.submitUjian(
|
|
widget.ujianId,
|
|
_jawabanUser,
|
|
_token!,
|
|
);
|
|
setState(() => _isSubmitting = false);
|
|
} catch (e) {
|
|
setState(() => _isSubmitting = false);
|
|
_showErrorSnackbar(
|
|
'Error: ${e.toString().replaceAll('Exception: ', '')}');
|
|
}
|
|
}
|
|
|
|
Future<void> _loadInitialData() async {
|
|
try {
|
|
setState(() {
|
|
_isLoading = true;
|
|
_errorMessage = null;
|
|
});
|
|
|
|
final prefs = await SharedPreferences.getInstance();
|
|
_token = prefs.getString('token');
|
|
|
|
if (_token == null) {
|
|
throw Exception('Silakan login kembali');
|
|
}
|
|
|
|
_soalList = await _ujianService.getSoalUjian(widget.ujianId, _token!);
|
|
if (_soalList.isEmpty) {
|
|
throw Exception('Tidak ada soal tersedia untuk ujian ini');
|
|
}
|
|
|
|
_startTimer();
|
|
setState(() => _isLoading = false);
|
|
} catch (e) {
|
|
setState(() {
|
|
_isLoading = false;
|
|
_errorMessage = e.toString().replaceAll('Exception: ', '');
|
|
});
|
|
_showErrorSnackbar(_errorMessage!);
|
|
}
|
|
}
|
|
|
|
void _showErrorSnackbar(String message) {
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
SnackBar(
|
|
content: Text(message),
|
|
backgroundColor: Colors.red,
|
|
duration: const Duration(seconds: 3),
|
|
),
|
|
);
|
|
}
|
|
|
|
void _handleAnswerSelection(String answer) {
|
|
setState(() => _selectedAnswer = answer);
|
|
}
|
|
|
|
Future<void> sendLevelToDatabase(int level_id) async {
|
|
const endpoint = "/update-level";
|
|
try {
|
|
SharedPreferences prefs = await SharedPreferences.getInstance();
|
|
int? userId = prefs.getInt('id');
|
|
|
|
if (userId == null) {
|
|
throw Exception('User ID tidak ditemukan');
|
|
}
|
|
|
|
var response = await http.post(
|
|
Uri.parse(ApiConfig.baseUrl + endpoint),
|
|
headers: {'Content-Type': 'application/json'},
|
|
body: jsonEncode({'user_id': userId, 'level_id': level_id}),
|
|
);
|
|
|
|
if (response.statusCode == 200) {
|
|
await prefs.setInt('levelId', level_id);
|
|
Navigator.pushNamedAndRemoveUntil(
|
|
context, level_id == 2 ? '/n5' : '/level', (route) => false);
|
|
} else {
|
|
throw Exception('Failed to update level: ${response.statusCode}');
|
|
}
|
|
} catch (e) {
|
|
_showErrorSnackbar('Error: ${e.toString()}');
|
|
}
|
|
}
|
|
|
|
Future<void> _submitAnswer() async {
|
|
if (_selectedAnswer == null) {
|
|
_showErrorSnackbar('Pilih jawaban terlebih dahulu');
|
|
return;
|
|
}
|
|
|
|
try {
|
|
_jawabanUser.add({
|
|
'soal_id': _soalList[_currentQuestionIndex]['id'],
|
|
'jawaban_user': _selectedAnswer!,
|
|
});
|
|
|
|
if (_currentQuestionIndex == _soalList.length - 1 || _timeUp) {
|
|
setState(() => _isSubmitting = true);
|
|
_hasilUjian = await _ujianService.submitUjian(
|
|
widget.ujianId,
|
|
_jawabanUser,
|
|
_token!,
|
|
);
|
|
setState(() => _isSubmitting = false);
|
|
} else {
|
|
setState(() {
|
|
_currentQuestionIndex++;
|
|
_selectedAnswer = null;
|
|
});
|
|
}
|
|
} catch (e) {
|
|
setState(() => _isSubmitting = false);
|
|
_showErrorSnackbar(
|
|
'Error: ${e.toString().replaceAll('Exception: ', '')}');
|
|
}
|
|
}
|
|
|
|
String _formatDuration(Duration duration) {
|
|
String twoDigits(int n) => n.toString().padLeft(2, "0");
|
|
String twoDigitMinutes = twoDigits(duration.inMinutes.remainder(60));
|
|
String twoDigitSeconds = twoDigits(duration.inSeconds.remainder(60));
|
|
return "$twoDigitMinutes:$twoDigitSeconds";
|
|
}
|
|
|
|
Widget _buildLoading() {
|
|
return Center(
|
|
child: Column(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
|
CircularProgressIndicator(
|
|
valueColor: AlwaysStoppedAnimation<Color>(bgColor2,),
|
|
strokeWidth: 3,
|
|
),
|
|
const SizedBox(height: 20),
|
|
Text(
|
|
'Memuat soal...',
|
|
style: TextStyle(
|
|
color: Colors.blue.shade400,
|
|
fontSize: 16,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
Widget _buildError() {
|
|
return Center(
|
|
child: Column(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
|
Icon(
|
|
Icons.error_outline,
|
|
color: Colors.red[400],
|
|
size: 50,
|
|
),
|
|
const SizedBox(height: 16),
|
|
Padding(
|
|
padding: const EdgeInsets.symmetric(horizontal: 24),
|
|
child: Text(
|
|
_errorMessage ?? 'Terjadi kesalahan',
|
|
style: TextStyle(
|
|
color: Colors.red[400],
|
|
fontSize: 16,
|
|
),
|
|
textAlign: TextAlign.center,
|
|
),
|
|
),
|
|
const SizedBox(height: 24),
|
|
ElevatedButton(
|
|
onPressed: _loadInitialData,
|
|
style: ElevatedButton.styleFrom(
|
|
backgroundColor: bgColor2,
|
|
padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(12),
|
|
),
|
|
elevation: 2,
|
|
),
|
|
child: const Text(
|
|
'Coba Lagi',
|
|
style: TextStyle(
|
|
color: Colors.white,
|
|
fontWeight: FontWeight.w500,
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
Widget _buildQuestion() {
|
|
final currentQuestion = _soalList[_currentQuestionIndex];
|
|
final pilihanJawaban =
|
|
currentQuestion['pilihan_jawaban'] as Map<String, dynamic>? ?? {};
|
|
|
|
return Padding(
|
|
padding: const EdgeInsets.all(16.0),
|
|
child: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.stretch,
|
|
children: [
|
|
// Timer and progress
|
|
Container(
|
|
padding: const EdgeInsets.all(12),
|
|
decoration: BoxDecoration(
|
|
color: Colors.white,
|
|
borderRadius: BorderRadius.circular(12),
|
|
boxShadow: [
|
|
BoxShadow(
|
|
color: Colors.black.withOpacity(0.1),
|
|
blurRadius: 8,
|
|
offset: const Offset(0, 4),
|
|
),
|
|
],
|
|
),
|
|
child: Column(
|
|
children: [
|
|
Row(
|
|
mainAxisAlignment: MainAxisAlignment.spaceBetween,
|
|
children: [
|
|
Row(
|
|
children: [
|
|
Icon(
|
|
Icons.timer,
|
|
size: 20,
|
|
color:
|
|
_duration.inSeconds <= 30 ? Colors.red : bgColor2,
|
|
),
|
|
const SizedBox(width: 8),
|
|
Text(
|
|
_formatDuration(_duration),
|
|
style: TextStyle(
|
|
fontSize: 18,
|
|
fontWeight: FontWeight.bold,
|
|
color: _duration.inSeconds <= 30
|
|
? Colors.red
|
|
: bgColor2,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
Text(
|
|
'Soal ${_currentQuestionIndex + 1}/${_soalList.length}',
|
|
style: TextStyle(
|
|
color: Colors.grey[700],
|
|
fontWeight: FontWeight.w500,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
const SizedBox(height: 12),
|
|
LinearProgressIndicator(
|
|
value: (_currentQuestionIndex + 1) / _soalList.length,
|
|
backgroundColor: Colors.grey[200],
|
|
valueColor: AlwaysStoppedAnimation<Color>(bgColor2),
|
|
minHeight: 6,
|
|
borderRadius: BorderRadius.circular(10),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
const SizedBox(height: 24),
|
|
|
|
// Question card
|
|
Card(
|
|
elevation: 2,
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(16),
|
|
),
|
|
child: Padding(
|
|
padding: const EdgeInsets.all(20.0),
|
|
child: Text(
|
|
currentQuestion['soal'] ?? 'Pertanyaan tidak tersedia',
|
|
style: const TextStyle(
|
|
fontSize: 18,
|
|
height: 1.5,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
const SizedBox(height: 24),
|
|
|
|
// Answer options
|
|
Expanded(
|
|
child: ListView.separated(
|
|
itemCount: pilihanJawaban.length,
|
|
separatorBuilder: (context, index) => const SizedBox(height: 12),
|
|
itemBuilder: (context, index) {
|
|
final optionKey = pilihanJawaban.keys.elementAt(index);
|
|
final optionText = pilihanJawaban[optionKey];
|
|
|
|
return Material(
|
|
color: Colors.transparent,
|
|
child: InkWell(
|
|
borderRadius: BorderRadius.circular(12),
|
|
onTap: () => _handleAnswerSelection(optionKey),
|
|
child: Container(
|
|
padding: const EdgeInsets.all(16),
|
|
decoration: BoxDecoration(
|
|
color: _selectedAnswer == optionKey
|
|
? bgColor2.withOpacity(0.2)
|
|
: Colors.white,
|
|
borderRadius: BorderRadius.circular(12),
|
|
border: Border.all(
|
|
color: _selectedAnswer == optionKey
|
|
? bgColor2
|
|
: Colors.grey.withOpacity(0.3),
|
|
width: 1.5,
|
|
),
|
|
boxShadow: [
|
|
BoxShadow(
|
|
color: Colors.black.withOpacity(0.05),
|
|
blurRadius: 6,
|
|
offset: const Offset(0, 2),
|
|
),
|
|
],
|
|
),
|
|
child: Row(
|
|
children: [
|
|
Container(
|
|
width: 24,
|
|
height: 24,
|
|
decoration: BoxDecoration(
|
|
shape: BoxShape.circle,
|
|
color: _selectedAnswer == optionKey
|
|
? bgColor2
|
|
: Colors.grey.withOpacity(0.2),
|
|
border: Border.all(
|
|
color: _selectedAnswer == optionKey
|
|
? bgColor2
|
|
: Colors.grey.withOpacity(0.5),
|
|
),
|
|
),
|
|
child: _selectedAnswer == optionKey
|
|
? const Icon(
|
|
Icons.check,
|
|
size: 16,
|
|
color: Colors.white,
|
|
)
|
|
: null,
|
|
),
|
|
const SizedBox(width: 16),
|
|
Expanded(
|
|
child: Text(
|
|
optionText ?? 'Opsi tidak tersedia',
|
|
style: TextStyle(
|
|
fontSize: 16,
|
|
color: Colors.grey[800],
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
);
|
|
},
|
|
),
|
|
),
|
|
const SizedBox(height: 16),
|
|
|
|
// Submit button
|
|
ElevatedButton(
|
|
onPressed: _isSubmitting ? null : _submitAnswer,
|
|
style: ElevatedButton.styleFrom(
|
|
backgroundColor: bgColor3,
|
|
foregroundColor: Colors.white,
|
|
padding: const EdgeInsets.symmetric(vertical: 16),
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(12),
|
|
),
|
|
elevation: 2,
|
|
),
|
|
child: _isSubmitting
|
|
? const SizedBox(
|
|
width: 24,
|
|
height: 24,
|
|
child: CircularProgressIndicator(
|
|
strokeWidth: 3,
|
|
color: Colors.white,
|
|
),
|
|
)
|
|
: Text(
|
|
_currentQuestionIndex == _soalList.length - 1
|
|
? 'Selesai Ujian'
|
|
: 'Lanjut ke Soal Berikutnya',
|
|
style: const TextStyle(
|
|
fontSize: 16,
|
|
fontWeight: FontWeight.bold,
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
Widget _buildResult() {
|
|
final score = _hasilUjian?['score'] ?? 0;
|
|
final isPerfectScore = score == 100;
|
|
|
|
return Container(
|
|
padding: const EdgeInsets.all(24),
|
|
decoration: BoxDecoration(
|
|
gradient: LinearGradient(
|
|
begin: Alignment.topCenter,
|
|
end: Alignment.bottomCenter,
|
|
colors: [
|
|
bgColor1.withOpacity(0.1),
|
|
bgColor1.withOpacity(0.3),
|
|
],
|
|
),
|
|
),
|
|
child: Center(
|
|
child: SingleChildScrollView(
|
|
child: Column(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
|
Container(
|
|
padding: const EdgeInsets.all(24),
|
|
decoration: BoxDecoration(
|
|
color: Colors.white,
|
|
borderRadius: BorderRadius.circular(20),
|
|
boxShadow: [
|
|
BoxShadow(
|
|
color: Colors.black.withOpacity(0.1),
|
|
blurRadius: 20,
|
|
offset: const Offset(0, 10),
|
|
),
|
|
],
|
|
),
|
|
child: Column(
|
|
children: [
|
|
Icon(
|
|
isPerfectScore
|
|
? Icons.star
|
|
: _timeUp
|
|
? Icons.timer_off
|
|
: Icons.assignment_turned_in,
|
|
color: isPerfectScore
|
|
? Colors.amber
|
|
: _timeUp
|
|
? Colors.orange
|
|
: Colors.green,
|
|
size: 60,
|
|
),
|
|
const SizedBox(height: 20),
|
|
Text(
|
|
isPerfectScore
|
|
? 'Sempurna!'
|
|
: _timeUp
|
|
? 'Waktu Habis!'
|
|
: 'Ujian Selesai!',
|
|
style: const TextStyle(
|
|
fontSize: 24,
|
|
fontWeight: FontWeight.bold,
|
|
),
|
|
),
|
|
const SizedBox(height: 30),
|
|
Text(
|
|
'Skor Anda',
|
|
style: TextStyle(
|
|
fontSize: 16,
|
|
color: Colors.grey[600],
|
|
),
|
|
),
|
|
Text(
|
|
'$score',
|
|
style: TextStyle(
|
|
fontSize: 48,
|
|
fontWeight: FontWeight.bold,
|
|
color: bgColor2,
|
|
),
|
|
),
|
|
const SizedBox(height: 20),
|
|
Text(
|
|
'${_hasilUjian?['jumlah_benar'] ?? '0'} dari ${_soalList.length} soal benar',
|
|
style: const TextStyle(
|
|
fontSize: 16,
|
|
),
|
|
),
|
|
if (_timeUp) ...[
|
|
const SizedBox(height: 20),
|
|
Text(
|
|
'Waktu ujian telah habis, jawaban otomatis dikirim',
|
|
style: TextStyle(
|
|
fontSize: 14,
|
|
color: Colors.grey[500],
|
|
),
|
|
textAlign: TextAlign.center,
|
|
),
|
|
],
|
|
const SizedBox(height: 30),
|
|
if (isPerfectScore)
|
|
_buildLevelButton(
|
|
"Lanjut ke Level N5",
|
|
Colors.blueAccent,
|
|
() => sendLevelToDatabase(2),
|
|
),
|
|
const SizedBox(height: 16),
|
|
ElevatedButton(
|
|
onPressed: () => Navigator.pop(context),
|
|
style: ElevatedButton.styleFrom(
|
|
backgroundColor: bgColor2,
|
|
foregroundColor: Colors.white,
|
|
padding: const EdgeInsets.symmetric(
|
|
horizontal: 40, vertical: 16),
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(12),
|
|
),
|
|
),
|
|
child: const Text('Kembali ke Materi'),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
Widget _buildLevelButton(String text, Color color, VoidCallback onPressed) {
|
|
return SizedBox(
|
|
width: double.infinity,
|
|
child: ElevatedButton(
|
|
onPressed: onPressed,
|
|
style: ElevatedButton.styleFrom(
|
|
backgroundColor: color,
|
|
foregroundColor: Colors.white,
|
|
padding: const EdgeInsets.symmetric(vertical: 16),
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(12),
|
|
),
|
|
elevation: 2,
|
|
),
|
|
child: Row(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
|
const Icon(Icons.arrow_forward),
|
|
const SizedBox(width: 8),
|
|
Text(
|
|
text,
|
|
style: const TextStyle(
|
|
fontSize: 16,
|
|
fontWeight: FontWeight.bold,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return Scaffold(
|
|
backgroundColor: bgColor1.withOpacity(0.95),
|
|
appBar: AppBar(
|
|
title: const Text(
|
|
'Latihan Soal Pemula',
|
|
style: TextStyle(
|
|
color: Colors.white,
|
|
fontWeight: FontWeight.bold,
|
|
),
|
|
),
|
|
backgroundColor: bgColor3,
|
|
elevation: 4,
|
|
shadowColor: bgColor2.withOpacity(0.5),
|
|
shape: const RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.vertical(
|
|
bottom: Radius.circular(15),
|
|
),
|
|
),
|
|
iconTheme: const IconThemeData(color: Colors.white),
|
|
),
|
|
body: _isLoading
|
|
? _buildLoading()
|
|
: _errorMessage != null
|
|
? _buildError()
|
|
: _hasilUjian != null
|
|
? _buildResult()
|
|
: _buildQuestion(),
|
|
);
|
|
}
|
|
}
|