var _inited = false;
  document.addEventListener('tabChanged', function(e) {
    if (e.detail.tab !== 'settings' || _inited) return;
    _inited = true;
  function setNextcloudConnectedStatus(url, user) {
    var statusEl = document.getElementById('nc-status');
    if (!statusEl) return;
    statusEl.textContent = 'Connected to ';
    var strong = document.createElement('strong');
    strong.textContent = url || '';
    statusEl.appendChild(strong);
    statusEl.appendChild(document.createTextNode(' as ' + (user || '')));
  }

  function loadNextcloudStatus() {
    fetch('/api/auth/me', { headers: getAuthHeaders() })
    .then(function(r) { return r.json(); })
    .then(function(data) {
      if (data.user && data.user.nextcloud_url) {
        setNextcloudConnectedStatus(data.user.nextcloud_url, data.user.nextcloud_user);
        document.getElementById('nc-url').value = data.user.nextcloud_url;
        document.getElementById('nc-user').value = data.user.nextcloud_user;
        document.getElementById('btn-nc-disconnect').classList.remove('hidden');
      } else {
        document.getElementById('nc-status').textContent = 'Not connected';
        document.getElementById('btn-nc-disconnect').classList.add('hidden');
      }
    });
  }

  window.loadNextcloudStatus = loadNextcloudStatus;

  document.getElementById('btn-nc-connect').addEventListener('click', function() {
    var url = document.getElementById('nc-url').value.trim().replace(/\/+$/, '');
    var user = document.getElementById('nc-user').value.trim();
    var pass = document.getElementById('nc-pass').value.trim();

    if (!url || !user || !pass) { showToast('Fill all Nextcloud fields', 'error'); return; }

    showLoading('Connecting to Nextcloud...');

    fetch('/api/nextcloud/connect', {
      method: 'POST',
      headers: getAuthHeaders(),
      body: JSON.stringify({ nextcloudUrl: url, username: user, appPassword: pass })
    })
    .then(function(r) { return r.json(); })
    .then(function(data) {
      hideLoading();
      if (data.success) {
        showToast(data.message, 'success');
        loadNextcloudStatus();
        document.getElementById('nc-pass').value = '';
      } else {
        showToast(data.error || 'Connection failed', 'error');
      }
    })
    .catch(function(err) { hideLoading(); showToast(err.message, 'error'); });
  });

  document.getElementById('btn-nc-disconnect').addEventListener('click', function() {
    fetch('/api/nextcloud/disconnect', { method: 'POST', headers: getAuthHeaders() })
    .then(function() { showToast('Disconnected', 'info'); loadNextcloudStatus(); });
  });

  // ── Sign in with Nextcloud ────────────────────────────────────────────
  // Nextcloud's own login flow. The tab is opened from the click itself, before
  // any await, or a popup blocker eats it — the request that fetches the URL is
  // allowed to finish afterwards and point the already-open tab at it.
  var pollTimer = null;

  function stopPolling(message, tone) {
    if (pollTimer) { clearInterval(pollTimer); pollTimer = null; }
    var status = document.getElementById('nc-login-flow-status');
    if (status) {
      status.textContent = message || '';
      status.style.color = tone === 'bad' ? 'var(--red)' : tone === 'good' ? 'var(--green)' : 'var(--g600)';
    }
  }

  document.getElementById('btn-nc-login-flow').addEventListener('click', function () {
    var url = (document.getElementById('nc-url').value || '').trim();
    if (!url) { showToast('Enter your Nextcloud address first', 'error'); return; }

    var tab = window.open('', '_blank');   // claimed while the click is still trusted
    stopPolling('Opening Nextcloud…');

    fetch('/api/nextcloud/login-flow/start', {
      method: 'POST', headers: getAuthHeaders(), body: JSON.stringify({ nextcloudUrl: url })
    })
      .then(function (r) { return r.json(); })
      .then(function (data) {
        if (!data.success) throw new Error(data.error || 'Could not start sign-in');
        if (tab) tab.location.href = data.loginUrl; else window.open(data.loginUrl, '_blank');
        stopPolling('Waiting for you to finish signing in…');

        var until = Date.now() + 10 * 60 * 1000;
        pollTimer = setInterval(function () {
          if (Date.now() > until) return stopPolling('Sign-in timed out. Try again.', 'bad');
          fetch('/api/nextcloud/login-flow/poll', {
            method: 'POST', headers: getAuthHeaders(), body: JSON.stringify({ handle: data.handle })
          })
            .then(function (r) { return r.json(); })
            .then(function (result) {
              if (result.connected) {
                stopPolling('Connected as ' + result.username + '.', 'good');
                loadNextcloudStatus();
                showToast('Nextcloud connected', 'success');
              } else if (!result.success) {
                stopPolling(result.error || 'Sign-in failed.', 'bad');
              }
            })
            .catch(function () { /* a dropped poll is not a failed sign-in */ });
        }, 3000);
      })
      .catch(function (err) {
        if (tab) tab.close();
        stopPolling(err.message, 'bad');
      });
  });

  console.log('✅ Nextcloud module loaded');
  });