<?php

namespace App\Classes;

class BookFetcher extends PageFetcher
{
    public function fetch(string $url): ?array
    {
        $cacheKey = 'book_'.md5($url);
        $cached = $this->cacheGet($cacheKey);

        if ($cached) {
            return $cached;
        }

        $book = $this->fetchSingleFromApi('optimized_books', $url);

        if (! $book) {
            return null;
        }

        $book['globals'] = $this->getGlobals();

        $this->cacheSet($cacheKey, $book);

        return $book;
    }
}