/*! Fiesta 1.0.0 | MPL-2.0 | https://fiesta.rastrillo.org */
(function () {
  "use strict";

  var HOLD_MS = 650;

  function busyOff(form) {
    form.removeAttribute("aria-busy");
    document.querySelectorAll('[aria-busy="true"]').forEach(function (b) {
      if (b.form !== form && !form.contains(b)) return;
      b.disabled = false;
      b.removeAttribute("aria-busy");
      var spin = b.querySelector("[rst-spin]");
      if (spin) spin.remove();
      var idle = b.getAttribute("data-idle-label");
      if (idle === null) return;
      if (b.tagName === "INPUT") { b.value = idle; } else { b.textContent = idle; }
      b.removeAttribute("data-idle-label");
    });
  }

  function busySubmit(e) {
    var form = e.target;
    if (!form || form.tagName !== "FORM") return;
    if (form.hasAttribute("data-pow-form") && !form.hasAttribute("data-pow-released")) return;
    if (form.getAttribute("data-busy") === "false") return;
    var btn = e.submitter;
    var to = (btn && btn.getAttribute("formtarget")) || form.getAttribute("target");
    if (to && to !== "_self") return;
    if (/^dialog$/i.test(btn && btn.getAttribute("formmethod") ||
      form.getAttribute("method"))) return;
    if (form === releasing) return; 
    if (form.getAttribute("aria-busy") === "true") { e.preventDefault(); return; }
    form.setAttribute("aria-busy", "true");
    if (!btn || btn.getAttribute("data-busy") === "false") btn = null;
    var label = btn && (btn.getAttribute("data-busy-label") ||
      form.getAttribute("data-busy-label"));
    if (btn) {
      btn.setAttribute("aria-busy", "true");
      if (btn.tagName === "BUTTON") {
        if (label) {
          btn.setAttribute("data-idle-label", btn.textContent);
          btn.textContent = label;
        }
        var spin = document.createElement("span");
        spin.setAttribute("rst-spin", "");
        spin.setAttribute("aria-hidden", "true");
        btn.insertBefore(spin, btn.firstChild);
      }
    }
    setTimeout(function () {
      if (e.defaultPrevented && !held.has(e)) { busyOff(form); return; }
      if (!btn) return;
      if (label && btn.tagName === "INPUT") {
        btn.setAttribute("data-idle-label", btn.value);
        btn.value = label;
      }
      btn.disabled = true;
    }, 0);
  }

  document.addEventListener("submit", busySubmit, true);

  var held = new WeakSet(); 
  var pending = new Map();  
  var releasing = null;     
  window.addEventListener("submit", function (e) {
    var form = e.target;
    if (!form || form.tagName !== "FORM") return;
    if (form === releasing) { releasing = null; return; }
    if (form.hasAttribute("data-pow-form")) return;
    if (e.defaultPrevented || form.getAttribute("aria-busy") !== "true") return;
    var btn = e.submitter || null;
    if (!btn || btn.getAttribute("aria-busy") !== "true") return;
    e.preventDefault();
    held.add(e);
    pending.set(form, setTimeout(function () { release(form, btn); }, HOLD_MS));
    if (pending.size === 1) window.addEventListener("beforeunload", dropHeld);
  });

  function release(form, btn) {
    pending.delete(form);
    if (pending.size === 0) window.removeEventListener("beforeunload", dropHeld);
    if (!form.isConnected) return;
    var skip = form.hasAttribute("novalidate") ||
      (btn && btn.hasAttribute("formnovalidate"));
    if (!skip && !form.checkValidity()) {
      busyOff(form);
      form.reportValidity();
      return;
    }
    if (btn && (!btn.isConnected || btn.form !== form)) {
      busyOff(form);
      return;
    }
    var busyValue = null;
    var wasDisabled = btn ? btn.disabled : false;
    if (btn) {
      btn.disabled = false;
      var idle = btn.getAttribute("data-idle-label");
      if (btn.tagName === "INPUT" && idle !== null) {
        busyValue = btn.value;
        btn.value = idle;
      }
    }
    releasing = form;
    try {
      form.requestSubmit(btn || undefined);
    } finally {
      releasing = null;
      if (btn) {
        btn.disabled = wasDisabled;
        if (busyValue !== null) btn.value = busyValue;
      }
    }
  }

  function dropHeld() {
    pending.forEach(function (timer, form) {
      clearTimeout(timer);
      busyOff(form);
    });
    pending.clear();
    window.removeEventListener("beforeunload", dropHeld);
  }

  window.addEventListener("pagehide", function () { dropHeld(); });

  window.addEventListener("pageshow", function (e) {
    if (e.persisted) document.querySelectorAll("form[aria-busy]").forEach(busyOff);
  });
})();