async function pidRequireAuth() {
  try {
    return await pidApiRequest("/me/");
  } catch (e) {
    return null;
  }
}

async function pidLogout() {
  try {
    await pidApiRequest("/auth/logout/", { method: "POST" });
  } catch (e) {
    // mesmo se a chamada falhar, força a saída no cliente
  }
  window.location.href = "index.html";
}

function pidBindPasswordToggle(toggleBtn, input) {
  if (!toggleBtn || !input) return;
  toggleBtn.addEventListener("click", () => {
    const isPassword = input.type === "password";
    input.type = isPassword ? "text" : "password";
    toggleBtn.setAttribute("aria-label", isPassword ? "Ocultar senha" : "Mostrar senha");
  });
}

document.addEventListener("DOMContentLoaded", async () => {
  const form = document.getElementById("login-form");
  if (!form) return;

  try {
    const me = await pidApiRequest("/me/", { redirectOn401: false });
    if (me) {
      window.location.href = "portal.html";
      return;
    }
  } catch (e) {
    // sem sessão ativa — permanece no login
  }

  const userInput = document.getElementById("login-user");
  const passInput = document.getElementById("login-pass");
  const errorEl = document.getElementById("login-error");
  const toggleBtn = document.getElementById("toggle-password");
  const submitBtn = form.querySelector('button[type="submit"]');

  pidBindPasswordToggle(toggleBtn, passInput);

  form.addEventListener("submit", async (event) => {
    event.preventDefault();
    const username = userInput.value.trim();
    const password = passInput.value.trim();

    if (!username || !password) {
      errorEl.textContent = "Informe login e senha para continuar.";
      return;
    }

    errorEl.textContent = "";
    if (submitBtn) submitBtn.disabled = true;
    try {
      await pidApiRequest("/auth/login/", {
        method: "POST",
        redirectOn401: false,
        body: { username, password },
      });
      const tocaIntro =
        typeof pidIsHalloweenActive === "function" && pidIsHalloweenActive() && typeof pidPlayLoginIntroHalloween === "function"
          ? pidPlayLoginIntroHalloween
          : typeof pidIsAniversarioActive === "function" && pidIsAniversarioActive() && typeof pidPlayLoginIntroAniversario === "function"
            ? pidPlayLoginIntroAniversario
            : pidPlayLoginIntro;
      tocaIntro(() => {
        sessionStorage.setItem("pid_reveal_portal", "1");
        window.location.href = "portal.html";
      });
    } catch (e) {
      errorEl.textContent = e.message || "Login ou senha inválidos.";
      if (submitBtn) submitBtn.disabled = false;
    }
  });
});