/**
 * Manage users — SRC Advisory webmail plugin.
 *
 * Adds a first-class "User management" entry to the Settings page. Users are
 * the VNCdirectory's concern (the SRC directory), so this plugin is a thin
 * deep-link: it explains where users live and opens the directory's user list
 * in a new tab. It deliberately does NOT try to manage users itself.
 */

const host = require('@plugin-host');
const React = require('react');
const h = React.createElement;

const MANAGE_USERS_URL = 'https://vncdirectory.src-advisory.com/users';

const card = {
  border: '1px solid var(--color-border, #e2e8f0)',
  borderRadius: '8px',
  padding: '16px',
  background: 'var(--color-card, #fff)',
  color: 'var(--color-foreground, #0f172a)',
  maxWidth: '720px',
};
const btnPrimary = {
  font: 'inherit',
  padding: '8px 14px',
  borderRadius: '6px',
  border: '1px solid var(--color-primary, #2563eb)',
  background: 'var(--color-primary, #2563eb)',
  color: '#fff',
  cursor: 'pointer',
};

function SettingsSection() {
  return h('div', { style: card },
    h('div', { style: { fontWeight: 600, marginBottom: '6px' } }, 'User management'),
    h('div', { style: { fontSize: '13px', lineHeight: 1.5, marginBottom: '14px', color: 'var(--color-muted-foreground, #64748b)' } },
      'Users are created and managed in the VNCdirectory, not in SRCmail. ' +
      'Add a user there and assign them to the SRC organization to give them a mailbox automatically.'),
    h('button', {
      type: 'button',
      style: btnPrimary,
      onClick: () => {
        try { host.ui.openExternalUrl(MANAGE_USERS_URL); } catch (err) {
          // Fallback if the sandbox blocks window.open: navigate a normal link.
          window.open(MANAGE_USERS_URL, '_blank', 'noopener,noreferrer');
        }
      },
    }, 'Open VNCdirectory →'),
  );
}

export const slots = {
  'settings-section': { component: SettingsSection, order: 100 },
};

export async function activate(api) {
  api.log.info('manage-users plugin activated');
}