/* auth.js — авторизация */

function showLoginOverlay() {
  document.getElementById('login-overlay').style.display = 'flex';
}

function hideLoginOverlay() {
  document.getElementById('login-overlay').style.display = 'none';
}

async function doLogin() {
  var btn = document.getElementById('l-btn');
  var errEl = document.getElementById('l-error');
  var token = (document.getElementById('l-token').value || '').trim();
  var env = document.getElementById('l-env').value;
  if (!token) { errEl.textContent = 'Введите токен или логин'; errEl.style.display = 'block'; return; }
  var isJWT = token.split('.').length === 3 && !token.includes(' ');
  if (!isJWT && token.length < 6) { errEl.textContent = 'Логин — не менее 6 символов'; errEl.style.display = 'block'; return; }
  btn.disabled = true;
  errEl.style.display = 'none';
  try {
    const res = await fetch(API_BASE + '/auth', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ token: token, env: env })
    });
    if (!res.ok) {
      const d = await res.json().catch(function () { return {}; });
      throw new Error(d.error || 'Ошибка входа');
    }
    const data = await res.json();
    localStorage.setItem('auth_token', token);
    localStorage.setItem('auth_env', env);
    if (data.email) localStorage.setItem('auth_email', data.email);
    else localStorage.removeItem('auth_email');
    setUserAvatar(token);
    hideLoginOverlay();
    // Проверяем статус NS — если не ready, показываем init overlay
    try {
      var sr = await fetch(API_BASE + '/ns/status', { headers: { 'X-Auth-Token': token, 'X-Auth-Env': env } });
      var sd = await sr.json();
      if (!sd.ready) {
        pollNSStatus();
        return;
      }
    } catch (_) { }
    reloadAll();
  } catch (e) {
    errEl.textContent = e.message;
    errEl.style.display = 'block';
  } finally {
    btn.disabled = false;
  }
}

function jwtEmail(token) {
  try {
    var payload = JSON.parse(atob(token.split('.')[1].replace(/-/g,'+').replace(/_/g,'/')));
    return payload.email || payload.sub || null;
  } catch (_) { return null; }
}

function setUserAvatar(token) {
  var el = document.getElementById('user-avatar');
  if (!el) return;
  var email = localStorage.getItem('auth_email') || (token ? jwtEmail(token) : null);
  if (email) {
    el.textContent = email;
    el.title = email;
    el.style.fontSize = '0.75rem';
    el.style.minWidth = 'auto';
    el.style.padding = '0 10px';
    el.style.background = 'none';
    el.style.border = '1px solid var(--border)';
    el.style.borderRadius = '6px';
    el.style.color = 'var(--text-primary)';
    el.style.fontWeight = '400';
    el.style.width = 'auto';
    el.style.height = '30px';
  } else {
    el.textContent = 'N';
    el.title = '';
    el.style.cssText = '';
  }
}

function doLogout() {
  localStorage.removeItem('auth_token');
  localStorage.removeItem('auth_env');
  localStorage.removeItem('auth_email');
  try { document.getElementById('l-token').value = ''; } catch (_) { }
  setUserAvatar(null);
  showLoginOverlay();
}

function checkAuth() {
  var storedToken = localStorage.getItem('auth_token');
  if (!storedToken) {
    showLoginOverlay();
    return;
  }
  setUserAvatar(storedToken);
  hideLoginOverlay();
  reloadAll();
}