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|
"use client";
import { useState, useEffect } from "react";
import { DeckResponse, CardResponse } from "@/lib/types/cards";
import { startStudySession, getUserStudyStats } from "@/actions/srs";
import StudyCard from "./StudyCard";
import { Button } from "@/components/ui/button";
import { Card } from "@/components/ui/card";
import { Progress } from "@/components/ui/progress";
import { Skeleton } from "@/components/ui/skeleton";
import { cn } from "@/lib/utils";
interface StudySessionProps {
userId: number;
lessonId: number;
initialData?: DeckResponse;
}
export default function StudySession({ userId, lessonId, initialData }: StudySessionProps) {
const [deckData, setDeckData] = useState<DeckResponse | null>(initialData || null);
const [currentCardIndex, setCurrentCardIndex] = useState(0);
const [reviewedCards, setReviewedCards] = useState<CardResponse[]>([]);
const [isLoading, setIsLoading] = useState(!initialData);
const [isCompleted, setIsCompleted] = useState(false);
const [stats, setStats] = useState<any>(null);
const [error, setError] = useState<string | null>(null);
// Load the deck data if not provided
useEffect(() => {
if (!initialData) {
loadDeck();
}
// Load user stats
loadStats();
}, []);
// Load deck data
const loadDeck = async () => {
setIsLoading(true);
setError(null);
try {
const result = await startStudySession(userId, lessonId, true);
if ('error' in result) {
setError(result.error);
setDeckData(null);
} else {
setDeckData(result);
}
} catch (error) {
console.error("Error loading deck:", error);
setError("Failed to load study session. Please try again later.");
} finally {
setIsLoading(false);
}
};
// Load user stats
const loadStats = async () => {
try {
const userStats = await getUserStudyStats(userId);
setStats(userStats);
} catch (error) {
console.error("Error loading stats:", error);
}
};
// Handle card completion
const handleCardComplete = (updatedCard: CardResponse) => {
// Add to reviewed cards
setReviewedCards(prev => [...prev, updatedCard]);
// Move to next card
if (deckData && currentCardIndex < deckData.cards.length - 1) {
setCurrentCardIndex(currentCardIndex + 1);
} else {
// End of deck
setIsCompleted(true);
}
// Refresh stats
loadStats();
};
// Skip current card
const handleSkip = () => {
if (deckData && currentCardIndex < deckData.cards.length - 1) {
setCurrentCardIndex(currentCardIndex + 1);
}
};
// Restart session
const handleRestart = () => {
setCurrentCardIndex(0);
setReviewedCards([]);
setIsCompleted(false);
loadDeck();
};
// Calculate completion percentage
const getCompletionPercentage = () => {
if (!deckData) return 0;
return (reviewedCards.length / deckData.cards.length) * 100;
};
// Get current card
const getCurrentCard = (): CardResponse | null => {
if (!deckData || !deckData.cards || deckData.cards.length === 0) return null;
return deckData.cards[currentCardIndex];
};
// Render loading state
if (isLoading) {
return (
<div className="w-full max-w-3xl mx-auto p-4">
<Card className="p-6">
<div className="space-y-4">
<Skeleton className="h-8 w-1/2" />
<Skeleton className="h-[400px] w-full" />
<div className="flex justify-between">
<Skeleton className="h-10 w-24" />
<Skeleton className="h-10 w-24" />
</div>
</div>
</Card>
</div>
);
}
// Render error state
if (error) {
return (
<div className="w-full max-w-3xl mx-auto p-4">
<Card className="p-6 text-center">
<div className="text-red-500 mb-4">{error}</div>
<Button onClick={loadDeck}>Retry</Button>
</Card>
</div>
);
}
// Render completion state
if (isCompleted || !getCurrentCard()) {
return (
<div className="w-full max-w-3xl mx-auto p-4">
<Card className="p-6">
<div className="text-center">
<h2 className="text-2xl font-bold mb-4">Study Session Completed!</h2>
<div className="mb-6">
<p className="text-lg">You've reviewed {reviewedCards.length} cards.</p>
{stats && (
<div className="mt-4 text-sm text-gray-600">
<p>Total cards: {stats.totalCards}</p>
<p>Mastered cards: {stats.masteredCards}</p>
<p>Due cards remaining: {stats.dueCards}</p>
</div>
)}
</div>
<div className="flex justify-center gap-4">
<Button onClick={handleRestart}>Start New Session</Button>
<Button variant="outline" onClick={() => window.history.back()}>
Back to Lessons
</Button>
</div>
</div>
</Card>
</div>
);
}
// Render study session
return (
<div className="w-full max-w-3xl mx-auto p-4">
<div className="mb-6">
<div className="flex justify-between items-center mb-2">
<h2 className="text-xl font-bold">
{deckData?.lesson.name}
</h2>
<div className="text-sm text-gray-500">
{reviewedCards.length} / {deckData?.cards.length} cards
</div>
</div>
<Progress value={getCompletionPercentage()} className="h-2" />
</div>
<StudyCard
card={getCurrentCard()!}
userId={userId}
onComplete={handleCardComplete}
onSkip={handleSkip}
/>
<div className="mt-6 flex justify-between">
<Button variant="ghost" onClick={() => window.history.back()}>
Exit
</Button>
<Button variant="outline" onClick={handleSkip}>
Skip
</Button>
</div>
{stats && (
<div className="mt-8 p-4 bg-gray-50 rounded-lg">
<h3 className="font-medium mb-2">Your Progress</h3>
<div className="grid grid-cols-2 md:grid-cols-4 gap-4">
<div className="text-center">
<div className="text-2xl font-bold">{stats.totalCards}</div>
<div className="text-xs text-gray-500">Total Cards</div>
</div>
<div className="text-center">
<div className="text-2xl font-bold">{stats.masteredCards}</div>
<div className="text-xs text-gray-500">Mastered</div>
</div>
<div className="text-center">
<div className="text-2xl font-bold">{stats.dueCards}</div>
<div className="text-xs text-gray-500">Due Today</div>
</div>
<div className="text-center">
<div className="text-2xl font-bold">{stats.streakDays}</div>
<div className="text-xs text-gray-500">Day Streak</div>
</div>
</div>
</div>
)}
</div>
);
}
|
