/**
 * Security fix F1: a plain host must not be able to demote a *peer host*. Before the
 * fix, `set_role` only blocked `target == admin`, so a host could demote another host
 * to guest and then ban / PIN-reset (→ account takeover via /recover) them, because the
 * ban/pin-reset peer guards key off the target's *current* role. This proves the
 * demotion itself is now blocked for non-admins, while admins and guest-management
 * still work.
 */
import { test, expect } from '../../fixtures/test';
import { BASE } from '../../helpers/env';

function patchRole(token: string, userId: string, role: string) {
  return fetch(`${BASE}/api/v1/host/users/${userId}/role`, {
    method: 'PATCH',
    headers: { Authorization: `Bearer ${token}`, 'Content-Type': 'application/json' },
    body: JSON.stringify({ role }),
  });
}

test.describe('AuthZ — host cannot demote a peer host (F1)', () => {
  test('host→host demotion is 403; admin may demote; host may still manage guests', async ({
    host,
    guest,
    adminToken,
    api,
  }) => {
    // A second host (the victim) and an ordinary guest.
    const peer = await guest('PeerHost');
    await api.setRole(adminToken, peer.userId, 'host');
    const plain = await guest('PlainGuest');

    // Attacker host tries to demote the peer host — must be refused.
    const attack = await patchRole(host.jwt, peer.userId, 'guest');
    expect(attack.status, 'a host must not be able to demote a peer host').toBe(403);

    // An admin may still demote a host.
    const byAdmin = await patchRole(adminToken, peer.userId, 'guest');
    expect(byAdmin.status).toBe(204);

    // A host may still manage guests (promote one to host).
    const promote = await patchRole(host.jwt, plain.userId, 'host');
    expect(promote.status).toBe(204);
  });
});
