import { redirect } from 'next/navigation';

import { adminLoginAction } from '@/src/lib/actions.js';
import { adminHash } from '@/src/lib/config.js';
import { runCleanupIfNeeded } from '@/src/lib/db.js';
import { readSearchParam } from '@/src/lib/format.js';
import { ensureCsrfToken, getAuthenticatedUser } from '@/src/lib/security.js';

import { StatusMessage } from '../_components/status-message.js';

export const dynamic = 'force-dynamic';

export default async function AdminLoginPage({ searchParams }) {
  await runCleanupIfNeeded();

  if (!adminHash) {
    return (
      <main className="page-shell narrow">
        <section className="panel centered">
          <h1>Adminzugang nicht konfiguriert</h1>
          <p className="muted">Setze MANAGEMENT_ADMIN_HASH in der Umgebungskonfiguration.</p>
          <a className="btn secondary" href="/manage/login">
            Zurück zur Anmeldung
          </a>
        </section>
      </main>
    );
  }

  const user = await getAuthenticatedUser();
  if (user?.admin) {
    redirect('/manage/admin/dashboard');
  }

  const csrfToken = await ensureCsrfToken();
  const resolvedSearchParams = await searchParams;
  const error = readSearchParam(resolvedSearchParams, 'error');
  const success = readSearchParam(resolvedSearchParams, 'success');

  return (
    <main className="page-shell narrow">
      <header className="page-header">
        <div className="header-main">
          <h1>Adminbereich</h1>
          <p className="muted">Melde dich als Administrator an.</p>
        </div>
      </header>

      <section className="panel">
        <StatusMessage error={error} success={success} />
        <form className="form-grid" action={adminLoginAction}>
          <input type="hidden" name="csrfToken" value={csrfToken} />

          <label className="field">
            Admin-Passwort
            <input className="input" name="password" type="password" autoComplete="current-password" required />
          </label>

          <button className="btn" type="submit">
            Anmelden
          </button>
        </form>
      </section>
    </main>
  );
}