elemes/frontend/src/routes/lesson/[slug]/QuizTab.svelte

398 lines
16 KiB
Svelte

<script lang="ts">
interface Option {
text: string;
is_correct: boolean;
}
interface FlashcardData {
type: 'flashcard' | 'mcq';
front?: string;
back?: string;
question?: string;
options?: Option[];
explanation?: string;
image?: string;
}
interface Props {
quizData: FlashcardData[];
isQuizMode: boolean;
completedStatus?: string; // e.g. "5/6" or "completed"
onComplete?: (status: string) => void;
}
let { quizData = [], isQuizMode = $bindable(), completedStatus = '', onComplete }: Props = $props();
let currentIndex = $state(0);
let isFlipped = $state(false);
let selectedOption = $state<number | null>(null);
let randomizedOptions = $state<Option[]>([]);
let answersStatus = $state<boolean[]>([]); // Track if answered/flipped
let userSelections = $state<(number | null)[]>([]); // Track user choice index for MCQ
let showSummary = $state(false);
const currentCard = $derived(quizData[currentIndex]);
const isAllAnswered = $derived(answersStatus.every(status => status === true));
const isAnswered = $derived(answersStatus[currentIndex]);
// Summary data
const correctCount = $derived(
quizData.reduce((acc, card, i) => {
if (card.type === 'mcq' && userSelections[i] !== null) {
const opts = card.options || [];
// Note: this uses original quizData order, but userSelections matches it
// Wait, if options are randomized, we need to store the correct status
// Actually, randomizedOptions is per-card, so we should store if they got it right
}
return acc;
}, 0)
);
// Better way: Track correctness directly
let isCorrectArray = $state<boolean[]>([]);
function shuffleArray<T>(array: T[]): T[] {
const newArray = [...array];
for (let i = newArray.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[newArray[i], newArray[j]] = [newArray[j], newArray[i]];
}
return newArray;
}
function handleStart() {
isQuizMode = true;
currentIndex = 0;
answersStatus = new Array(quizData.length).fill(false);
userSelections = new Array(quizData.length).fill(null);
isCorrectArray = new Array(quizData.length).fill(false);
showSummary = false;
resetCardState();
}
function resetCardState() {
isFlipped = false;
selectedOption = null;
if (currentCard && currentCard.type === 'mcq' && currentCard.options) {
randomizedOptions = shuffleArray(currentCard.options);
}
}
function handleFinish() {
if (!isAllAnswered) return;
if (window.confirm("Apakah anda yakin untuk menyelesaikan kuis? Materi akan muncul kembali setelah ini.")) {
const mcqTotal = quizData.filter(c => c.type === 'mcq').length;
const correctTotal = isCorrectArray.filter((v, i) => quizData[i].type === 'mcq' && v).length;
// If it's pure flashcards, just 'completed'. Otherwise 'correct/total'
const statusString = mcqTotal > 0 ? `${correctTotal}/${mcqTotal}` : 'completed';
const passThreshold = 0.75;
const score = mcqTotal > 0 ? correctTotal / mcqTotal : 1.0;
// Send to backend
if (onComplete) onComplete(statusString);
// Show local summary
showSummary = true;
isQuizMode = false;
}
}
function handleFlip() {
if (currentCard.type === 'flashcard') {
isFlipped = !isFlipped;
if (!answersStatus[currentIndex]) {
answersStatus[currentIndex] = true;
isCorrectArray[currentIndex] = true; // Flashcards are always "correct" once seen
}
}
}
function handleOptionSelect(index: number) {
if (isAnswered) return;
selectedOption = index;
answersStatus[currentIndex] = true;
userSelections[currentIndex] = index;
isCorrectArray[currentIndex] = randomizedOptions[index].is_correct;
}
function nextCard() {
if (currentIndex < quizData.length - 1) {
currentIndex++;
resetCardState();
}
}
function prevCard() {
if (currentIndex > 0) {
currentIndex--;
resetCardState();
}
}
// Determine wrong questions for summary
const wrongQuestions = $derived(
quizData.map((card, i) => ({ card, i }))
.filter(({ card, i }) => card.type === 'mcq' && !isCorrectArray[i])
);
</script>
<div class="quiz-container">
{#if showSummary || (completedStatus && completedStatus !== 'not_started' && !isQuizMode)}
<div class="summary-view">
<div class="summary-header">
<div class="summary-icon">🏁</div>
<h2>Kuis Selesai!</h2>
{#if completedStatus && !showSummary}
<p class="score-display">Nilai Anda: <strong>{completedStatus}</strong></p>
<div class="alert alert-info">
Kuis ini sudah diselesaikan. Silakan hubungi guru jika ingin mengulang.
</div>
{:else}
{@const mcqTotal = quizData.filter(c => c.type === 'mcq').length}
{@const correctTotal = isCorrectArray.filter((v, i) => quizData[i].type === 'mcq' && v).length}
<p class="score-display">Skor: <strong>{correctTotal} / {mcqTotal}</strong></p>
{#if mcqTotal > 0 && (correctTotal / mcqTotal) < 0.75}
<div class="alert alert-warning">
Nilai Anda di bawah ambang batas 75%. Pelajari kembali topik di bawah ini.
</div>
{:else}
<div class="alert alert-success">
Selamat! Anda telah memahami materi ini dengan baik.
</div>
{/if}
{#if wrongQuestions.length > 0}
<div class="wrong-topics">
<h3>Topik yang perlu dipelajari lagi:</h3>
<ul>
{#each wrongQuestions as { card }}
<li>{@html card.question}</li>
{/each}
</ul>
</div>
{/if}
{/if}
</div>
</div>
{:else if !isQuizMode}
<div class="quiz-start-view">
<div class="quiz-icon">📝</div>
<h2>Kuis Interaktif</h2>
<p>Uji pemahamanmu dengan kuis ini.</p>
<div class="alert alert-warning">
⚠️ <strong>Penting:</strong> Materi pelajaran akan disembunyikan. Kamu harus menjawab semua soal untuk dapat menyelesaikannya.
</div>
<button class="btn btn-primary btn-lg" onclick={handleStart}>
Mulai Kuis Sekarang
</button>
</div>
{:else if quizData.length > 0}
<div class="quiz-active-view">
<div class="quiz-progress">
Pertanyaan {currentIndex + 1} dari {quizData.length}
<div class="progress-bar-bg">
<div class="progress-bar-fill" style="width: {((currentIndex + 1) / quizData.length) * 100}%"></div>
</div>
</div>
{#if currentCard.type === 'mcq'}
<div class="mcq-view">
<div class="question-box">
<div class="side-label">Pertanyaan</div>
<div class="card-content">
{#if currentCard.image}
<img src={currentCard.image} alt="Pertanyaan" class="quiz-image" />
{/if}
{@html currentCard.question}
</div>
</div>
<div class="options-grid">
{#each randomizedOptions as option, i}
<button
class="option-btn"
class:selected={selectedOption === i}
class:correct={isAnswered && option.is_correct}
class:wrong={isAnswered && selectedOption === i && !option.is_correct}
onclick={() => handleOptionSelect(i)}
disabled={isAnswered}
>
<div class="option-marker">{String.fromCharCode(65 + i)}</div>
<div class="option-text">{@html option.text}</div>
</button>
{/each}
</div>
{#if isAnswered}
<div class="feedback-area" class:correct={isCorrectArray[currentIndex]}>
<div class="feedback-status">
{#if isCorrectArray[currentIndex]}
🎉 <strong>Benar!</strong>
{:else}
<strong>Kurang tepat.</strong>
{/if}
</div>
{#if currentCard.explanation}
<div class="explanation-box">{@html currentCard.explanation}</div>
{/if}
</div>
{/if}
</div>
{:else}
<!-- svelte-ignore a11y_click_events_have_key_events -->
<!-- svelte-ignore a11y_no_static_element_interactions -->
<div class="flashcard-wrapper" onclick={handleFlip}>
<div class="flashcard" class:flipped={isFlipped}>
<div class="flashcard-front">
<div class="side-label">Pertanyaan</div>
<div class="card-content">
{#if currentCard.image}
<img src={currentCard.image} alt="Pertanyaan" class="quiz-image" />
{/if}
{@html currentCard.front}
</div>
<div class="flip-hint">Klik untuk melihat jawaban</div>
</div>
<div class="flashcard-back">
<div class="side-label">Jawaban</div>
<div class="card-content">{@html currentCard.back}</div>
{#if currentCard.explanation}
<div class="explanation-box small">{@html currentCard.explanation}</div>
{/if}
<div class="flip-hint">Klik untuk kembali ke pertanyaan</div>
</div>
</div>
</div>
{/if}
<div class="quiz-controls">
<button class="btn btn-outline" onclick={prevCard} disabled={currentIndex === 0}>← Sebelumnya</button>
{#if currentIndex < quizData.length - 1}
<button class="btn btn-primary" onclick={nextCard} disabled={!isAnswered}>Selanjutnya →</button>
{:else}
<button class="btn btn-success" onclick={handleFinish} disabled={!isAllAnswered}>Selesai Kuis</button>
{/if}
</div>
<div class="cancel-container">
<button class="btn-exit-quiz" disabled>Batal Kuis</button>
<span class="cancel-lock-hint">🔒 Selesaikan kuis untuk melihat materi kembali</span>
</div>
</div>
{:else}
<div class="quiz-empty"><p>Tidak ada data kuis.</p></div>
{/if}
</div>
<style>
.quiz-container {
padding: 1.5rem;
height: 100%;
display: flex;
flex-direction: column;
background: var(--color-bg);
overflow-y: auto;
}
.summary-view {
text-align: center;
padding: 2rem 1rem;
max-width: 500px;
margin: auto;
}
.summary-icon { font-size: 4rem; margin-bottom: 1rem; }
.score-display { font-size: 1.5rem; margin-bottom: 1.5rem; }
.score-display strong { color: var(--color-primary); font-size: 2.5rem; }
.wrong-topics {
text-align: left;
margin-top: 2rem;
padding-top: 2rem;
border-top: 1px solid var(--color-border);
}
.wrong-topics h3 { font-size: 1rem; margin-bottom: 1rem; color: var(--color-danger); }
.wrong-topics ul { padding-left: 1.5rem; }
.wrong-topics li { margin-bottom: 0.75rem; font-size: 0.9rem; }
.quiz-active-view { flex: 1; display: flex; flex-direction: column; }
.quiz-start-view { text-align: center; max-width: 400px; margin: auto; display: flex; flex-direction: column; gap: 1rem; }
.quiz-icon { font-size: 4rem; margin-bottom: 0.5rem; }
.alert { padding: 1rem; border-radius: 8px; font-size: 0.9rem; line-height: 1.4; text-align: left; }
.alert-warning { background: var(--color-bg-secondary); border: 1px solid var(--color-warning); color: var(--color-text); }
.alert-success { background: rgba(25, 135, 84, 0.1); border: 1px solid var(--color-success); color: var(--color-success); }
.alert-info { background: rgba(13, 110, 253, 0.1); border: 1px solid var(--color-primary); color: var(--color-primary); }
.quiz-progress { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 1.5rem; }
.progress-bar-bg { height: 6px; background: var(--color-border); border-radius: 3px; margin-top: 0.5rem; overflow: hidden; }
.progress-bar-fill { height: 100%; background: var(--color-primary, #339af0); transition: width 0.3s ease; }
.mcq-view { flex: 1; display: flex; flex-direction: column; gap: 1.5rem; margin-bottom: 2rem; }
.question-box { background: var(--color-bg-secondary); border: 2px solid var(--color-border); border-radius: 12px; padding: 1.5rem; }
.options-grid { display: flex; flex-direction: column; gap: 0.75rem; }
.option-btn { display: flex; align-items: center; gap: 1rem; padding: 1rem; background: var(--color-bg); border: 2px solid var(--color-border); border-radius: 12px; cursor: pointer; text-align: left; transition: all 0.2s; font-size: 1rem; color: var(--color-text); }
.option-btn:hover:not(:disabled) { border-color: var(--color-primary); background: var(--color-bg-secondary); }
.option-btn.selected { border-color: var(--color-primary); background: var(--color-bg-secondary); }
.option-btn.correct { border-color: var(--color-success); background: rgba(25, 135, 84, 0.15); }
.option-btn.wrong { border-color: var(--color-danger); background: rgba(220, 53, 69, 0.15); }
.option-marker { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; background: var(--color-bg-secondary); border: 1px solid var(--color-border); border-radius: 8px; font-weight: 700; font-size: 0.9rem; flex-shrink: 0; color: var(--color-text); }
.option-btn.correct .option-marker { background: var(--color-success); border-color: var(--color-success); color: white; }
.option-btn.wrong .option-marker { background: var(--color-danger); border-color: var(--color-danger); color: white; }
.option-text { flex: 1; }
.feedback-area { padding: 1.25rem; border-radius: 12px; display: flex; flex-direction: column; gap: 0.75rem; }
.feedback-area.correct { color: var(--color-success); background: rgba(25, 135, 84, 0.1); border: 1px solid rgba(25, 135, 84, 0.2); }
.feedback-area:not(.correct) { color: var(--color-danger); background: rgba(220, 53, 69, 0.1); border: 1px solid rgba(220, 53, 69, 0.2); }
.explanation-box { font-size: 0.85rem; line-height: 1.5; padding: 1rem; background: var(--color-bg-secondary); border: 1px solid var(--color-border); border-radius: 8px; text-align: left; }
.explanation-box.small { margin-top: 1rem; max-width: 100%; font-size: 0.75rem; }
.explanation-box :global(p) { margin: 0; }
.flashcard-wrapper { flex: 1; perspective: 1000px; min-height: 250px; cursor: pointer; margin-bottom: 2rem; }
.flashcard { position: relative; width: 100%; height: 100%; transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); transform-style: preserve-3d; }
.flashcard.flipped { transform: rotateY(180deg); }
.flashcard-front, .flashcard-back { position: absolute; width: 100%; height: 100%; backface-visibility: hidden; display: flex; flex-direction: column; padding: 2rem; background: var(--color-bg-secondary); border: 2px solid var(--color-border); border-radius: 16px; box-shadow: var(--shadow); }
.flashcard-back { transform: rotateY(180deg); background: var(--color-bg); }
.side-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-muted); margin-bottom: 1rem; font-weight: 700; border-bottom: 1px solid var(--color-border); padding-bottom: 0.5rem; }
.card-content { flex: 1; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; font-size: 1.25rem; color: var(--color-text); line-height: 1.5; }
.quiz-image {
max-width: 100%;
max-height: 300px;
object-fit: contain;
border-radius: 8px;
margin-bottom: 1rem;
box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
:global(.card-content img) { max-width: 100%; height: auto; border-radius: 8px; margin: 1rem 0; }
:global(.option-text img) { max-width: 100%; height: auto; border-radius: 4px; display: block; margin: 0.5rem 0; }
:global(.card-content p) { margin: 0; }
.flip-hint { font-size: 0.75rem; color: var(--color-text-muted); margin-top: 1rem; font-style: italic; }
.quiz-controls {
display: flex;
justify-content: space-between;
gap: 1rem;
margin-top: auto;
position: relative;
z-index: 10; /* Ensure buttons are clickable */
background: var(--color-bg); /* Prevents card content from showing through during scroll */
padding-top: 1rem;
}
.btn { padding: 0.6rem 1.2rem; border-radius: 8px; font-weight: 600; cursor: pointer; border: none; transition: opacity 0.2s; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: #339af0; color: white; }
.btn-success { background: #40c057; color: white; }
.btn-outline { background: white; border: 1px solid var(--color-border); color: var(--color-text); }
.btn-lg { padding: 1rem 2rem; font-size: 1.1rem; }
.btn-exit-quiz { background: none; border: none; color: var(--color-text-muted); text-decoration: underline; font-size: 0.85rem; cursor: pointer; }
.cancel-container { display: flex; flex-direction: column; align-items: center; margin-top: 1rem; gap: 0.5rem; }
.cancel-lock-hint { font-size: 0.75rem; color: #fa5252; font-weight: 500; }
.quiz-empty { text-align: center; margin: auto; color: var(--color-text-muted); }
@media (max-width: 600px) { .card-content { font-size: 1.1rem; } .option-btn { padding: 0.75rem; font-size: 0.95rem; } }
</style>