// Basin AJAX submission with lazily-loaded reCAPTCHA v3 for the contact form
// and job apply forms. The reCAPTCHA script is not loaded until the visitor
// first interacts with a form (or submits), keeping it off the initial page load.
(function () {
  "use strict";

  const SITE_KEY = "6Les66kUAAAAANyLrgkl7iuN4JUpNlB5upaMovI4";
  const forms = document.querySelectorAll(".contact-form form, form.contact-form, form.apply-form");
  if (!forms.length) return;

  // ── Lazy reCAPTCHA loader ──────────────────────────────────────
  let loadStarted = false;
  function loadRecaptcha() {
    if (loadStarted) return;
    loadStarted = true;
    const s = document.createElement("script");
    s.src = "https://www.google.com/recaptcha/api.js?render=" + SITE_KEY;
    s.async = true;
    document.head.appendChild(s);
  }
  // Resolves once grecaptcha is ready; loads the script if not already loading.
  function readyRecaptcha() {
    loadRecaptcha();
    return new Promise((resolve, reject) => {
      const start = Date.now();
      (function check() {
        if (window.grecaptcha && window.grecaptcha.execute) {
          window.grecaptcha.ready(resolve);
        } else if (Date.now() - start > 10000) {
          reject(new Error("reCAPTCHA failed to load"));
        } else {
          setTimeout(check, 100);
        }
      })();
    });
  }

  forms.forEach((form) => {
    // Warm the loader as soon as the user engages with the form.
    form.addEventListener("focusin", loadRecaptcha, { once: true });

    const success = document.getElementById("form-success");
    const statusEl = document.getElementById("form-status"); // optional role="status" region
    const tokenField = form.querySelector("#g-recaptcha-response");
    const btn = form.querySelector('button[type="submit"]');
    const originalLabel = btn ? btn.textContent : "";

    const announce = (msg) => {
      if (statusEl) statusEl.textContent = msg;
      else if (msg) alert(msg);
    };

    form.addEventListener("submit", async (e) => {
      e.preventDefault();
      if (btn) {
        btn.textContent = btn.dataset.sending || "Sending…";
        btn.disabled = true;
      }
      announce("");

      try {
        await readyRecaptcha();
        const token = await window.grecaptcha.execute(SITE_KEY, { action: "submit" });
        if (tokenField) tokenField.value = token;
        const res = await fetch(form.action, {
          method: "POST",
          body: new FormData(form),
          headers: { Accept: "application/json" },
        });
        if (!res.ok) throw new Error("Submission failed");
        form.reset();
        form.style.display = "none";
        if (success) {
          success.style.display = "block";
          success.scrollIntoView({ behavior: "smooth", block: "center" });
        }
      } catch (err) {
        if (btn) {
          btn.textContent = originalLabel;
          btn.disabled = false;
        }
        announce(
          "Something went wrong. Please try again or email us directly at work-orders@seahaven.com"
        );
      }
    });
  });
})();