document.addEventListener('DOMContentLoaded', async () => {
    const urlParams = new URLSearchParams(window.location.search);
    const bookId = urlParams.get('id');

    try {
        const response = await fetch(`/api/ksiazki/${bookId}`);
        if (!response.ok) throw new Error('Książka nie znaleziona');
        
        const book = await response.json();
        
        document.getElementById('book-title').textContent = book.tytul;
        document.getElementById('book-author').textContent = `Autor: ${book.autor}`;
        document.getElementById('book-price').textContent = `Cena: ${book.cena} PLN`;
        document.getElementById('book-description').textContent = book.opis || 'Brak opisu';
        document.getElementById('book-cover').src = book.obraz_url || 'https://via.placeholder.com/400x600';
    } catch (error) {
        console.error('Błąd:', error);
        document.getElementById('book-details').innerHTML = `
            <div class="col-12 text-center">
                <h2 class="text-danger">Książka nie znaleziona</h2>
                <a href="/" class="btn btn-gothic mt-3">Powrót do strony głównej</a>
            </div>
        `;
    }
});