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import { useCallback, useEffect, useState } from "react";
import { Link, useParams } from "wouter";
import { ApiClientError, apiClient } from "../api";
interface Card {
id: string;
deckId: string;
front: string;
back: string;
state: number;
due: string;
reps: number;
lapses: number;
createdAt: string;
updatedAt: string;
}
interface Deck {
id: string;
name: string;
description: string | null;
}
const CardStateLabels: Record<number, string> = {
0: "New",
1: "Learning",
2: "Review",
3: "Relearning",
};
export function DeckDetailPage() {
const { deckId } = useParams<{ deckId: string }>();
const [deck, setDeck] = useState<Deck | null>(null);
const [cards, setCards] = useState<Card[]>([]);
const [isLoading, setIsLoading] = useState(true);
const [error, setError] = useState<string | null>(null);
const fetchDeck = useCallback(async () => {
if (!deckId) return;
const authHeader = apiClient.getAuthHeader();
if (!authHeader) {
throw new ApiClientError("Not authenticated", 401);
}
const res = await fetch(`/api/decks/${deckId}`, {
headers: authHeader,
});
if (!res.ok) {
const errorBody = await res.json().catch(() => ({}));
throw new ApiClientError(
(errorBody as { error?: string }).error ||
`Request failed with status ${res.status}`,
res.status,
);
}
const data = await res.json();
setDeck(data.deck);
}, [deckId]);
const fetchCards = useCallback(async () => {
if (!deckId) return;
const authHeader = apiClient.getAuthHeader();
if (!authHeader) {
throw new ApiClientError("Not authenticated", 401);
}
const res = await fetch(`/api/decks/${deckId}/cards`, {
headers: authHeader,
});
if (!res.ok) {
const errorBody = await res.json().catch(() => ({}));
throw new ApiClientError(
(errorBody as { error?: string }).error ||
`Request failed with status ${res.status}`,
res.status,
);
}
const data = await res.json();
setCards(data.cards);
}, [deckId]);
const fetchData = useCallback(async () => {
setIsLoading(true);
setError(null);
try {
await Promise.all([fetchDeck(), fetchCards()]);
} catch (err) {
if (err instanceof ApiClientError) {
setError(err.message);
} else {
setError("Failed to load data. Please try again.");
}
} finally {
setIsLoading(false);
}
}, [fetchDeck, fetchCards]);
useEffect(() => {
fetchData();
}, [fetchData]);
if (!deckId) {
return (
<div>
<p>Invalid deck ID</p>
<Link href="/">Back to decks</Link>
</div>
);
}
return (
<div>
<header style={{ marginBottom: "1rem" }}>
<Link href="/" style={{ textDecoration: "none" }}>
← Back to Decks
</Link>
</header>
{isLoading && <p>Loading...</p>}
{error && (
<div role="alert" style={{ color: "red" }}>
{error}
<button
type="button"
onClick={fetchData}
style={{ marginLeft: "0.5rem" }}
>
Retry
</button>
</div>
)}
{!isLoading && !error && deck && (
<main>
<div style={{ marginBottom: "1.5rem" }}>
<h1 style={{ margin: 0 }}>{deck.name}</h1>
{deck.description && (
<p style={{ margin: "0.5rem 0 0 0", color: "#666" }}>
{deck.description}
</p>
)}
</div>
<div
style={{
display: "flex",
justifyContent: "space-between",
alignItems: "center",
marginBottom: "1rem",
}}
>
<h2 style={{ margin: 0 }}>Cards ({cards.length})</h2>
</div>
{cards.length === 0 && (
<div>
<p>This deck has no cards yet.</p>
<p>Add cards to start studying!</p>
</div>
)}
{cards.length > 0 && (
<ul style={{ listStyle: "none", padding: 0 }}>
{cards.map((card) => (
<li
key={card.id}
style={{
border: "1px solid #ccc",
padding: "1rem",
marginBottom: "0.5rem",
borderRadius: "4px",
}}
>
<div
style={{
display: "flex",
justifyContent: "space-between",
alignItems: "flex-start",
}}
>
<div style={{ flex: 1, minWidth: 0 }}>
<div
style={{
display: "flex",
gap: "1rem",
marginBottom: "0.5rem",
}}
>
<div style={{ flex: 1, minWidth: 0 }}>
<strong>Front:</strong>
<p
style={{
margin: "0.25rem 0 0 0",
whiteSpace: "pre-wrap",
wordBreak: "break-word",
}}
>
{card.front}
</p>
</div>
<div style={{ flex: 1, minWidth: 0 }}>
<strong>Back:</strong>
<p
style={{
margin: "0.25rem 0 0 0",
whiteSpace: "pre-wrap",
wordBreak: "break-word",
}}
>
{card.back}
</p>
</div>
</div>
<div
style={{
display: "flex",
gap: "1rem",
fontSize: "0.875rem",
color: "#666",
}}
>
<span>
State: {CardStateLabels[card.state] || "Unknown"}
</span>
<span>Reviews: {card.reps}</span>
<span>Lapses: {card.lapses}</span>
</div>
</div>
</div>
</li>
))}
</ul>
)}
</main>
)}
</div>
);
}
|
