import { expect, test } from '@playwright/test';
import type { BrowserContext } from '@playwright/test';

import { contextForUser } from './helpers';
import {
  fixtureManifest,
  HUNG_SOURCE,
  MALICIOUS_SOURCE,
  pluginZip,
  WELL_BEHAVED_SOURCE,
} from './plugin-fixtures';

/**
 * Sandbox security pack (issue #73, ADR 0008): drives the admin plugin
 * preview page — the same sandbox runtime pages embed — with a well-behaved,
 * a malicious, and a hung fixture plugin. The malicious plugin is the
 * permanent security regression asset: every probe it runs must stay
 * "blocked" forever.
 */
const BASE_URL = process.env.E2E_BASE_URL ?? 'http://localhost:5173';

async function installPlugin(
  context: BrowserContext,
  id: string,
  name: string,
  permissions: string[],
  source: string,
): Promise<void> {
  // Idempotent per run: remove any previous installation of the fixture id.
  await context.request.delete(`/api/v1/admin/plugins/${id}`);
  const response = await context.request.post('/api/v1/admin/plugins', {
    multipart: {
      file: {
        name: `${id}.zip`,
        mimeType: 'application/zip',
        buffer: pluginZip(fixtureManifest(id, name, permissions), source),
      },
    },
  });
  expect(response.status(), await response.text()).toBe(201);
}

test('a well-behaved plugin renders and resizes its own frame', async ({ browser }) => {
  const context = await contextForUser(browser, BASE_URL, 'fixture-admin');
  await installPlugin(context, 'e2e-behaved', 'Behaved', ['ui'], WELL_BEHAVED_SOURCE);

  const page = await context.newPage();
  await page.goto('/admin/plugins/e2e-behaved/preview');

  const host = page.locator('.plugin-frame-host');
  await expect(host).toHaveAttribute('data-state', 'ready', { timeout: 10000 });
  const frame = page.frameLocator('.plugin-frame');
  await expect(frame.locator('body')).toHaveText('plugin-ok');
  // `ui.resize` was declared → the built-in handler applied the height.
  await expect(page.locator('.plugin-frame')).toHaveCSS('height', '321px');
});

test('a malicious plugin cannot escape the sandbox (security regression asset)', async ({
  browser,
}) => {
  const context = await contextForUser(browser, BASE_URL, 'fixture-admin');
  await installPlugin(context, 'e2e-malicious', 'Malicious', [], MALICIOUS_SOURCE);

  const page = await context.newPage();
  await page.goto('/admin/plugins/e2e-malicious/preview');

  const frame = page.frameLocator('.plugin-frame');
  // The final probe reports last — once it is attached, all verdicts are in.
  // (The marker divs are empty and zero-size, so assert attachment, not
  // visibility.)
  await expect(frame.locator('[data-probe="done"]')).toBeAttached({ timeout: 15000 });

  for (const probe of [
    'parentDom',
    'cookie',
    'localStorage',
    'fetchSameOrigin',
    'fetchExternal',
    'undeclaredCapability',
  ]) {
    await expect(frame.locator(`[data-probe="${probe}"]`), probe).toHaveAttribute(
      'data-result',
      'blocked',
    );
  }
});

test('a hung plugin collapses to the timeout placeholder; the page stays responsive', async ({
  browser,
}) => {
  const context = await contextForUser(browser, BASE_URL, 'fixture-admin');
  await installPlugin(context, 'e2e-hung', 'Hung', [], HUNG_SOURCE);

  const page = await context.newPage();
  await page.goto('/admin/plugins/e2e-hung/preview');

  const host = page.locator('.plugin-frame-host');
  // The placeholder must appear within the 5 s deadline (plus render slack).
  await expect(host).toHaveAttribute('data-state', 'failed', { timeout: 7000 });
  await expect(page.locator('.plugin-frame-host__status--failed')).toBeVisible();
  await expect(page.locator('.plugin-frame')).toHaveCount(0);

  // The app around the dead plugin still responds to input.
  await expect(page.locator('.plugin-preview__permissions, h1').first()).toBeVisible();
  await page.getByRole('heading', { level: 1 }).click();
});