LiveSampleURL.ejs

<%
// Returns the URL used to access as a live sample the code
// at a given ID.
//
// Parameters:
//
// $0   The ID of the sample's section or containing block.
// $1   The URL from which to pull the sample; if not provided,
//      the current page is assumed.

let id = $0;
let remoteUrl = $1;
let pagePath = env.url;
let baseUrl = env.live_samples.base_url;
let samplePath = `${pagePath}/runner.html`.replace(/\/\/+/g, "/");

if (remoteUrl && remoteUrl.length > 0) {
    pagePath = remoteUrl;
    baseUrl = env.live_samples.legacy_url;
    samplePath = `${pagePath}/_sample_.${web.slugify(web.safeDecodeURIComponent(id))}.html`.replace(/\/\/+/g, "/");
}

wiki.ensureExistence(pagePath);
const searchParams = new URLSearchParams([["id", id], ["url", remoteUrl]].filter(([_,v]) => Boolean(v)));

let url;
if (baseUrl.includes('://')) {
    url = new URL(baseUrl);
    url.pathname = samplePath;
    url.search = searchParams.toString();
} else {
    url = `${samplePath}?${searchParams.toString()}`;
}
%>
<%= url %>