/**
 * Phase 2 adversarial — UI-side defenses. Confirms that Svelte's default
 * text interpolation escapes everywhere user-supplied content surfaces.
 *
 * This is a belt-and-braces test: Svelte 5 escapes `{value}` by default,
 * so failures here would mean someone reached for `{@html}` somewhere
 * they shouldn't.
 */
import { test, expect } from '../../fixtures/test';

test.describe('Adversarial — UI render escape', () => {
  test('display name with <script> renders as text on /account', async ({ page, api }) => {
    const payload = `<script>window.__xssFired=true</script><b>BOLD</b>`;
    const r = await api.join(payload);

    await page.goto('/');
    await page.evaluate(
      ({ j, u, n, p }) => {
        localStorage.setItem('eventsnap_jwt', j);
        localStorage.setItem('eventsnap_user_id', u);
        localStorage.setItem('eventsnap_display_name', n);
        localStorage.setItem('eventsnap_pin', p);
      },
      { j: r.jwt, u: r.user_id, n: payload, p: r.pin }
    );

    page.on('dialog', (d) => {
      throw new Error(`Dialog fired: ${d.message()}`);
    });

    await page.goto('/account');

    // Render guard FIRST. `domcontentloaded` fires before Svelte hydrates, so asserting
    // the *absence* of a <b> at that point passes on a page that never rendered the name
    // at all — a false green on an XSS test. Prove the payload actually reached the DOM
    // (as escaped text) before concluding anything about how it was rendered.
    await expect(page.getByText(payload, { exact: false }).first()).toBeVisible({
      timeout: 10_000,
    });

    const fired = await page.evaluate(() => (window as any).__xssFired === true);
    expect(fired).toBe(false);

    // <b> tag inside the name should also not render as bold — Svelte escapes the entire
    // string. toHaveCount auto-retries, so this can't win by racing hydration.
    await expect(page.locator('b:has-text("BOLD")')).toHaveCount(0);
    await expect(page.locator('script:has-text("__xssFired")')).toHaveCount(0);
  });

  test('rendering of a known SQL-injection-shaped name does not break the page', async ({
    page,
    api,
  }) => {
    const payload = `'); DROP TABLE users; --`;
    const r = await api.join(payload);

    await page.goto('/');
    await page.evaluate(
      ({ j, u, n, p }) => {
        localStorage.setItem('eventsnap_jwt', j);
        localStorage.setItem('eventsnap_user_id', u);
        localStorage.setItem('eventsnap_display_name', n);
        localStorage.setItem('eventsnap_pin', p);
      },
      { j: r.jwt, u: r.user_id, n: payload, p: r.pin }
    );

    await page.goto('/account');
    // Page renders.
    await expect(page.getByRole('link', { name: 'Galerie' })).toBeVisible();
  });
});
