Get the smallest story from ReadLang.com for your current language

get_smallest_story.js

(async () => {
    lang = location.pathname.split('/')[1];
    selects = document.querySelectorAll('.customSelect');
    level = `${selects[1].value}-${selects[2].value}`;
    document.querySelector('span.customSelect').click();
    setTimeout(async () => {
        categories = Array.from(document.querySelectorAll('.multiSelectDropdown input')).filter((node) => node.checked).map(node => node.nextSibling.nextSibling.nodeValue).join("|");
        bookUrl = await fetch('https://readlang.com/api/books?' + new URLSearchParams({
            language: lang,
            firstLanguage: 'en',
            categories: categories,
            'filter[metrics_CEF]': level,
            public: true,
        }), {
            "credentials": "include",
            "headers": {
                "Accept": "application/json, text/javascript, */*; q=0.01",
                "X-Requested-With": "XMLHttpRequest",
            },
            "referrer": `https://readlang.com/${lang}/library`,
            "method": "GET",
            "mode": "cors"
        })
            .then(res => res.json())
            .then(books =>
                books.filter(book => !book.userBook?.tags?.includes('completed'))
                    .sort((a, b) => a.totalWords - b.totalWords)
                    .map(book => `https://readlang.com/library/${book._id}`)[0]
            );
        window.open(bookUrl, '_blank');
    }, 0);
})()