import { render, screen } from '@testing-library/react';
import { afterEach, describe, expect, it, vi } from 'vitest';

import { NetworkPage } from '../../src/NetworkPage';

afterEach(() => {
  vi.unstubAllGlobals();
});

describe('NetworkPage API boundary', () => {
  it('normalizes nullable PostgreSQL collections before rendering', async () => {
    vi.stubGlobal('fetch', vi.fn().mockResolvedValue(new Response(JSON.stringify({
      contractVersion: 'v1',
      observedAt: '2026-08-10T04:41:55Z',
      source: { id: 'agent', freshness: 'fresh', observedAt: '2026-08-10T04:41:55Z', state: 'unknown' },
      health: null,
      interfaces: null,
      certificates: null,
      events: null,
    }), { status: 200, headers: { 'Content-Type': 'application/json' } })));

    render(<NetworkPage />);

    expect(await screen.findByRole('heading', { level: 1, name: 'Netwerk' })).toBeVisible();
    expect(screen.getByText('Geen betrouwbare interfacegegevens beschikbaar.')).toBeVisible();
  });

  it('distinguishes an unconfigured DNS signal from generic unknown', async () => {
    vi.stubGlobal('fetch', vi.fn().mockResolvedValue(new Response(JSON.stringify({
      contractVersion: 'v1', observedAt: '2026-08-10T04:41:55Z',
      source: { id: 'network-aggregate', freshness: 'unknown', observedAt: '2026-08-10T04:41:55Z', state: 'unknown' },
      health: [{ scope: 'dns', state: 'unknown', capabilityState: 'available', configurationState: 'not_configured', reason: 'not_configured', freshness: 'unavailable', observedAt: '2026-08-10T04:41:55Z' }],
      interfaces: [], certificates: [], events: [],
    }), { status: 200, headers: { 'Content-Type': 'application/json' } })));

    render(<NetworkPage />);

    expect(await screen.findByText('Niet geconfigureerd')).toBeVisible();
    expect(screen.getByText('Voor dit signaal is nog geen veilige probe geconfigureerd.')).toBeVisible();
  });
});