import PAGE from "./app.html";

export function handler(CARDS, TAGS, TITLE) {
  const inject = "window.__CARDS__ = " + JSON.stringify(CARDS) + ";\n"
               + "window.__TAGS__  = " + JSON.stringify(TAGS)  + ";";
  const html = PAGE
    .replace("__TITLE__", () => TITLE)          // fn-form: no $-pattern interpretation
    .replace("/*__DATA__*/", () => inject);
  return new Response(html,
    { headers: { "content-type": "text/html; charset=utf-8" } });
}