// ===============================
// LOGIN.JS — Gestione form login
// ===============================

(() => {
  const form = document.getElementById("loginForm");
  const userInput = document.getElementById("loginUser");
  const passInput = document.getElementById("loginPass");
  const submitBtn = document.getElementById("loginSubmit");
  const errorBox = document.getElementById("loginError");

  const redirectUrl =
    form?.getAttribute("data-redirect") ||
    new URLSearchParams(location.search).get("redirect") ||
    "/";

  function showError(msg) {
    if (!errorBox) return;
    errorBox.textContent = msg;
    errorBox.classList.add("visible");
  }

  function clearError() {
    if (!errorBox) return;
    errorBox.textContent = "";
    errorBox.classList.remove("visible");
  }

  function setLoading(loading) {
    submitBtn.disabled = loading;
    submitBtn.setAttribute("aria-busy", loading ? "true" : "false");
  }

  async function handleSubmit(e) {
    e.preventDefault();
    clearError();

    const email = userInput.value.trim();
    const password = passInput.value;

    if (!email || !password) {
      showError("Inserisci email e password");
      return;
    }

    setLoading(true);

    try {
      await window.AppAuth.login(email, password);
      window.location.assign(redirectUrl);
    } catch (err) {
      showError("Credenziali non valide");
    } finally {
      setLoading(false);
    }
  }

  function init() {
    if (!form) return;
    form.addEventListener("submit", handleSubmit);
  }

  document.addEventListener("DOMContentLoaded", init);
})();