import type { AddressInfo } from 'node:net';
import { afterEach, describe, expect, it, vi } from 'vitest';
import { createNativeLoginGate } from '../src/native-login-gate.js';

const servers: Array<ReturnType<typeof createNativeLoginGate>> = [];

afterEach(async () => {
  await Promise.all(servers.splice(0).map((server) => new Promise<void>((resolve) => {
    server.close(() => resolve());
  })));
});

describe('native Reddit login gate', () => {
  it('serves VNC guidance and completes only after the explicit handoff', async () => {
    const onComplete = vi.fn();
    const server = createNativeLoginGate({
      publicVncUrl: 'https://red-vnc.example/vnc.html',
      onComplete,
    }).listen(0);
    servers.push(server);
    await new Promise<void>((resolve) => server.once('listening', resolve));
    const { port } = server.address() as AddressInfo;

    const page = await fetch(`http://127.0.0.1:${port}/`);
    const html = await page.text();
    expect(html).toContain('Chrome is running without automation');
    expect(html).toContain('https://red-vnc.example/vnc.html');
    expect(html).toContain("fetch('/complete', { method: 'POST' })");
    expect(onComplete).not.toHaveBeenCalled();

    const completed = await fetch(`http://127.0.0.1:${port}/complete`, { method: 'POST' });
    expect(completed.status).toBe(202);
    expect(await completed.json()).toEqual({ ok: true, restarting: true });
    expect(onComplete).toHaveBeenCalledOnce();
  });
});