/**
 * Helpdesk settings page — auth mode toggle and connection test.
 */
import { showAsyncFlash } from '/js/components/app-async-flash.js';

// Toggle OAuth2 vs Basic Auth field visibility
const authModeSelect = document.getElementById('auth_mode');
const basicFields = document.getElementById('helpdesk-basic-auth-fields');
const oauth2Fields = document.getElementById('helpdesk-oauth2-fields');

const toggleAuthFields = () => {
  if (!authModeSelect || !basicFields || !oauth2Fields) {
    return;
  }
  const isOAuth2 = authModeSelect.value === 'oauth2';
  basicFields.style.display = isOAuth2 ? 'none' : '';
  oauth2Fields.style.display = isOAuth2 ? '' : 'none';
};

if (authModeSelect) {
  authModeSelect.addEventListener('change', toggleAuthFields);
  toggleAuthFields();
}

// Connection test button
const testButton = document.getElementById('helpdesk-test-connection-button');

if (testButton) {
  testButton.addEventListener('click', async () => {
    testButton.disabled = true;
    testButton.setAttribute('aria-busy', 'true');

    try {
      const csrfMeta = document.querySelector('meta[name="csrf-token"]');
      const csrfInput = document.querySelector('input[name="csrf_token"]');
      const csrfToken = csrfInput?.value || csrfMeta?.content || '';

      const formData = new FormData();
      if (csrfToken) {
        formData.append('csrf_token', csrfToken);
      }

      const response = await fetch(
        new URL('helpdesk/settings/test-connection-data', document.baseURI).href,
        {
          method: 'POST',
          body: formData,
          credentials: 'same-origin',
        },
      );

      const data = await response.json();

      if (data.ok) {
        showAsyncFlash('success', data.message || 'Connection successful');
      } else {
        let msg = data.error || 'Connection failed';
        if (data.debug?.http_code) {
          msg += ' (HTTP ' + data.debug.http_code + ')';
        }
        showAsyncFlash('error', msg);
      }
    } catch {
      showAsyncFlash('error', 'Connection failed');
    } finally {
      testButton.disabled = false;
      testButton.removeAttribute('aria-busy');
    }
  });
}