(function () {
  var URL_HREF = "https://creativecommons.org/licenses/by-sa/4.0/";
  var PREFIX =
    "Content on this site by Baby Ghosts Studio Development Fund is licensed under CC BY-SA 4.0. " +
    "To view a copy of this license, visit ";

  function isDoc() {
    return location.pathname.indexOf("/doc/") === 0;
  }

  function removeAll() {
    document.querySelectorAll(".cc-license-footer").forEach(function (el) {
      el.remove();
    });
  }

  function render() {
    if (!isDoc()) {
      removeAll();
      return;
    }
    var pm = document.querySelector(".ProseMirror");
    if (!pm || !pm.parentElement) return;
    var target = pm.parentElement;
    if (target.querySelector(":scope > .cc-license-footer")) return;
    removeAll();
    var footer = document.createElement("footer");
    footer.className = "cc-license-footer";
    var p = document.createElement("p");
    p.appendChild(document.createTextNode(PREFIX));
    var a = document.createElement("a");
    a.href = URL_HREF;
    a.target = "_blank";
    a.rel = "noopener noreferrer";
    a.textContent = URL_HREF;
    p.appendChild(a);
    footer.appendChild(p);
    target.appendChild(footer);
  }

  var pending = false;
  function schedule() {
    if (pending) return;
    pending = true;
    requestAnimationFrame(function () {
      pending = false;
      render();
    });
  }

  ["pushState", "replaceState"].forEach(function (m) {
    var orig = history[m];
    history[m] = function () {
      orig.apply(this, arguments);
      schedule();
    };
  });
  window.addEventListener("popstate", schedule);

  function start() {
    new MutationObserver(schedule).observe(document.body, {
      childList: true,
      subtree: true,
    });
    schedule();
  }

  if (document.readyState === "loading") {
    document.addEventListener("DOMContentLoaded", start);
  } else {
    start();
  }
})();