/* Reverse-proxy prefix, so /api/* still resolves on a subpath mount. */
const URL_BASE = document.body.dataset.urlBase || "";

function showToast(msg, isError) {
  const t = document.getElementById('toast');
  t.textContent = msg;
  t.classList.toggle('error', !!isError);
  t.classList.add('show');
  setTimeout(() => t.classList.remove('show'), 2800);
}

async function post(url, payload) {
  return fetch(url, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    credentials: 'include',
    body: JSON.stringify(payload)
  });
}

async function saveGeneral() {
  try {
    const resp = await post(URL_BASE + '/api/settings', {
      timezone: document.getElementById('timezone').value,
      arr_host: document.getElementById('arr_host').value.trim()
    });
    showToast(resp.ok ? 'General settings saved — reload the dashboard to apply.'
                      : 'Save failed.', !resp.ok);
  } catch (e) { showToast('Network error — not saved.', true); }
}

async function saveService(name) {
  try {
    const key = document.getElementById(name + '_api_key').value.trim();
    const resp = await post(URL_BASE + '/api/settings', { [name + '_api_key']: key });
    const label = name.charAt(0).toUpperCase() + name.slice(1);
    showToast(resp.ok ? label + ' key saved — restart the container to apply.'
                      : 'Save failed.', !resp.ok);
  } catch (e) { showToast('Network error — not saved.', true); }
}

async function changePassword() {
  const errEl = document.getElementById('pw-error');
  errEl.style.display = 'none';
  try {
    const resp = await post(URL_BASE + '/api/change-password', {
      current: document.getElementById('pw_current').value,
      new:     document.getElementById('pw_new').value,
      confirm: document.getElementById('pw_confirm').value
    });
    const data = await resp.json();
    if (resp.ok) {
      ['pw_current', 'pw_new', 'pw_confirm'].forEach(id => document.getElementById(id).value = '');
      showToast('Password updated.');
    } else {
      errEl.textContent = data.error || 'Failed to update password.';
      errEl.style.display = 'block';
      showToast(data.error || 'Failed to update password.', true);
    }
  } catch (e) { showToast('Network error — password not changed.', true); }
}