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// Email-first two-step sign-in, mirroring the live /signin behavior while
// keeping one ordinary POST to /auth/login. Without JS both fields render
// and the form submits directly.
(function () {
  "use strict";

  var form = document.querySelector("[data-auth-two-step]");
  if (form) {
    var title = document.querySelector("[data-auth-step-title]");
    var email = form.querySelector('input[type="email"]');
    var password = form.querySelector('input[type="password"]');
    var cont = form.querySelector("[data-auth-continue]");

    form.classList.add("is-step-email");
    // Step 2's required password must not block step-1 validation.
    password.required = false;

    function toPasswordStep() {
      if (!email.checkValidity()) {
        email.reportValidity();
        return;
      }
      form.classList.remove("is-step-email");
      form.classList.add("is-step-password");
      password.required = true;
      if (title) title.textContent = "What's your password?";
      password.focus();
    }
    cont.addEventListener("click", toPasswordStep);
    email.addEventListener("keydown", function (event) {
      if (event.key === "Enter" && form.classList.contains("is-step-email")) {
        event.preventDefault();
        toPasswordStep();
      }
    });
  }

  var registerForm = document.querySelector("[data-auth-register-two-step]");
  if (registerForm) {
    var registerTitle = document.querySelector(
      "[data-auth-register-step-title]"
    );
    var registerEmail = registerForm.querySelector('input[type="email"]');
    var registerName = registerForm.querySelector('input[name="display_name"]');
    var registerPassword = registerForm.querySelector('input[type="password"]');
    var registerContinue = registerForm.querySelector(
      "[data-auth-register-continue]"
    );

    registerForm.classList.add("is-step-email");
    registerName.required = false;
    registerPassword.required = false;

    function toRegisterDetails() {
      if (!registerEmail.checkValidity()) {
        registerEmail.reportValidity();
        return;
      }
      registerForm.classList.remove("is-step-email");
      registerForm.classList.add("is-step-details");
      registerName.required = true;
      registerPassword.required = true;
      if (registerTitle) registerTitle.textContent = "Let's get to know you";
      registerName.focus();
    }

    registerContinue.addEventListener("click", toRegisterDetails);
    registerEmail.addEventListener("keydown", function (event) {
      if (
        event.key === "Enter" &&
        registerForm.classList.contains("is-step-email")
      ) {
        event.preventDefault();
        toRegisterDetails();
      }
    });
  }

  // Social buttons are local stand-ins: reveal the explanation note.
  var note = document.querySelector("[data-auth-social-note]");
  document.querySelectorAll("[data-auth-social]").forEach(function (btn) {
    btn.addEventListener("click", function () {
      if (!note) return;
      var provider = btn.getAttribute("data-auth-provider") || "Social";
      note.textContent = provider +
        " sign-in isn't available in this protected preview. Use your email above.";
      note.hidden = false;
      note.focus && note.focus();
    });
  });
})();