$(document).ready(function () {
    $(window).scroll(function () {
        if ($(this).scrollTop() > 500) {
            $('#back-to-top').fadeIn();
        } else {
            $('#back-to-top').fadeOut();
        }
    });

    patchAssetIntoDom('/assets/logos/cc/logomark.svg');
    patchAssetIntoDom('/assets/logos/products/open_source.svg');

    // Check for click events on the navbar burger icon
    $(".navbar-burger").click(function() {
        // Toggle the "is-active" class on both the "navbar-burger" and the "navbar-menu"
        $(".navbar-burger").toggleClass("is-active");
        $(".navbar-menu").toggleClass("is-active");
    });

    $(".navbar-item.has-dropdown").click(function() {
        if ($(".navbar-burger").is(':visible')) {
            $(this).toggleClass("is-active");
        }
    });
    $(".navbar-item > .navbar-link").click(function(e) {
        if ($(".navbar-burger").is(':visible')) {
            e.preventDefault();
        }
    });
    $(window).resize(function() {
        if (!$(".navbar-burger").is(':visible') && $(".navbar-item.has-dropdown.is-active").length) {
            $(".navbar-item.has-dropdown.is-active").removeClass('is-active');
        }
    });

    // Internal Navigation for table of contents and table of progress component
    let hash = window.location.hash;
    if (hash.length > 0) {
        $('.menu-list').find('a[href=\"' + hash + '\"]').addClass('is-active');
        $('.step').find('a[href=\"' + hash + '\"]').find('.number').addClass('is-active');
    }

    $(window).on('hashchange', function() {
        let hash = window.location.hash;
        $('.menu-list a[href*="#"]').closest('a').removeClass('is-active');
        $('.menu-list').find('a[href=\"' + hash + '\"]').addClass('is-active');

        $('.step a[href*="#"]').closest('a').find('.number').removeClass('is-active');
        $('.step').find('a[href=\"' + hash + '\"]').find('.number').addClass('is-active');
    });
});

const getFullyQualifiedUrl = (path, version) => {
    let baseUrl = "https://unpkg.com/@creativecommons/vocabulary"
    if (version) {
        baseUrl = `${baseUrl}@${version}`
    }
    return `${baseUrl}/${path}`
}

const patchAssetIntoDom = (asset, version = null) => {
    const ajax = new XMLHttpRequest();
    ajax.open("GET", getFullyQualifiedUrl(asset, version), true);
    ajax.onload = () => {
        var div = document.createElement("div");
        // Render SVG in the page
        div.innerHTML = ajax.responseText;
        div.style.display = 'none';
        document.body.insertBefore(div, document.body.childNodes[0]);
    }

    ajax.send();
}