import { expect, test } from './fixtures';

// The shared fixture already neutralises the real telegram-web-app.js, so these
// specs control window.Telegram deterministically (injected below) with no network.

// A minimal valid-looking Telegram WebApp stub: non-empty initData triggers the Mini
// App launch path (the mock gateway accepts any initData and returns a durable
// session); themeParams override the design tokens.
function webAppStub(startParam = '') {
  return {
    Telegram: {
      WebApp: {
        initData: 'query_id=test&user=%7B%22id%22%3A1%7D&auth_date=1&hash=deadbeef',
        initDataUnsafe: startParam ? { start_param: startParam } : {},
        themeParams: { bg_color: '#101418', text_color: '#ffffff' },
        ready() {},
        expand() {},
      },
    },
  };
}

test('Telegram launch auto-authenticates into the lobby and applies the theme', async ({ page }) => {
  await page.addInitScript((stub) => {
    Object.assign(window, stub);
  }, webAppStub());
  await page.goto('/');

  // No guest-login click: the Mini App authenticates from initData and lands on the lobby.
  await expect(page.getByText('Your turn')).toBeVisible();

  // The Telegram themeParams override the background token at runtime.
  await expect
    .poll(() => page.evaluate(() => getComputedStyle(document.documentElement).getPropertyValue('--bg').trim()))
    .toBe('#101418');
});

test('a Telegram launch fragment in the URL still lands on the lobby and normalises the hash', async ({
  page,
}) => {
  await page.addInitScript((stub) => {
    Object.assign(window, stub);
  }, webAppStub());
  // Telegram appends its launch params to the URL fragment on a cold launch; the router must
  // not treat that as a route (it parsed as notfound, which re-keyed the pane and slid the
  // lobby in as if returning from another screen).
  await page.goto(
    '/#tgWebAppData=query_id%3Dtest%26user%3D%257B%2522id%2522%253A1%257D&tgWebAppVersion=7.0&tgWebAppPlatform=ios',
  );
  await expect(page.getByText('Your turn')).toBeVisible();
  // The lobby is the root: bootstrap normalised the launch-param fragment to '#/'.
  await expect.poll(() => new URL(page.url()).hash).toBe('#/');
});

test('tg-fullscreen header keeps a constant native-nav gap as the font scales', async ({ page }) => {
  await page.goto('/');
  await page.getByRole('button', { name: /guest/i }).click();
  await expect(page.getByText('Your turn')).toBeVisible(); // the lobby header is present + settled

  // Emulate Telegram fullscreen: the class + safe-area vars our header positions against.
  await page.evaluate(() => {
    const h = document.documentElement;
    h.classList.add('tg-fullscreen');
    h.style.setProperty('--tg-safe-top', '47px');
    h.style.setProperty('--tg-content-top', '50px');
  });
  const probe = () =>
    page.evaluate(() => {
      const bar = document.querySelector('.bar')!.getBoundingClientRect();
      const h1 = document.querySelector('.bar h1')!.getBoundingClientRect();
      return { h1Top: Math.round(h1.top), overflows: h1.bottom > bar.bottom + 0.5 };
    });

  const normal = await probe();
  // Scale the root font up (an OS / Telegram "larger text" setting scales rem-based text).
  await page.evaluate(() => (document.documentElement.style.fontSize = '28px'));
  const large = await probe();

  // The gap to Telegram's native controls is a fixed px, so the title's top does not move…
  expect(large.h1Top).toBe(normal.h1Top);
  // …the title grows downward inside the bar (which grows with it), never overflowing it.
  expect(normal.overflows).toBe(false);
  expect(large.overflows).toBe(false);
});

test('inside Telegram, a failed launch shows the retry screen, not the web login', async ({ page }) => {
  // initData carrying the mock's "bootfail" sentinel makes authTelegram reject, simulating a
  // backend outage during launch (e.g. a deploy rolling). The Mini App must surface its own
  // boot-error/retry screen and never fall back to the web (guest/email) login.
  await page.addInitScript(() => {
    Object.assign(window, {
      Telegram: {
        WebApp: {
          initData: 'query_id=bootfail&user=%7B%22id%22%3A1%7D&auth_date=1&hash=deadbeef',
          initDataUnsafe: {},
          ready() {},
          expand() {},
        },
      },
    });
  });
  await page.goto('/');

  // After the silent retries, the boot-error screen with its Retry button shows…
  await expect(page.getByRole('button', { name: 'Retry' })).toBeVisible();
  // …and the web login (guest) is never shown inside Telegram.
  await expect(page.getByRole('button', { name: /guest/i })).toHaveCount(0);
});

test('outside Telegram, the /telegram/ entry shows the launch diagnostic, not a redirect', async ({
  page,
}) => {
  await page.goto('/telegram/');

  // The entry no longer bounces a visitor without Telegram sign-in data to the marketing landing;
  // it shows a compact diagnostic screen (Share + Retry) that helps pinpoint why initData was
  // absent — notably the Android empty-initData failure.
  await expect(page.getByRole('button', { name: 'Share' })).toBeVisible();
  await expect(page.getByRole('button', { name: 'Retry' })).toBeVisible();
  // It stays on /telegram/ (no redirect) and never shows the web (guest) login.
  await expect(page).toHaveURL(/\/telegram\//);
  await expect(page.getByRole('button', { name: /guest/i })).toHaveCount(0);
});

test('inside Telegram (online-only), an offline signal never switches the app to offline mode', async ({
  page,
}) => {
  // The Telegram mini-app is online-only: the offline model (implicit offline, device-local games,
  // the transport kill switch) must stay inert there. Even when the net-state machine is driven to an
  // offline state, offlineMode must remain false — otherwise the chrome turns blue, the lobby greys the
  // server games and, critically, a vs_ai start would create a device-local game instead of enqueuing.
  await page.addInitScript((stub) => {
    Object.assign(window, stub);
  }, webAppStub());
  await page.goto('/');
  await expect(page.getByText('Your turn')).toBeVisible(); // the durable mini-app session, in the lobby

  // Drive the net-state machine to an offline state through the mock hook.
  await page.evaluate(() => (window as unknown as { __net: { offline(): void } }).__net.offline());

  // Because the channel is online-only, offlineMode stays inert: on the lobby the chrome never turns blue
  // and no server game is greyed…
  await expect(page.locator('header.nav.offline')).toHaveCount(0);
  await expect(page.locator('.rowwrap.greyed')).toHaveCount(0);
  // …and New Game's quick match still offers the opponent choice (AI / random), which is hidden only in
  // real offline mode. Its presence is the positive proof that offlineMode is false — so the vs_ai start,
  // whose device-local branch is gated on offlineMode, enqueues on the server instead of creating a
  // device-local game.
  await page.locator('button.tab').nth(0).click();
  await expect(page.locator('button.opt', { hasText: '🤖' })).toBeVisible();
});

test('inside Telegram (online-only), New Game with friends offers remote invites only', async ({
  page,
}) => {
  // A Telegram launch authenticates a durable account, so New Game shows the auto/with-friends selector.
  // "Play with friends" must offer only the remote invite — never the online/offline segment, whose
  // "Pass and play" is the device-local hotseat flow that has no place in an online-only mini-app.
  await page.addInitScript((stub) => {
    Object.assign(window, stub);
  }, webAppStub());
  await page.goto('/');
  await expect(page.getByText('Your turn')).toBeVisible();

  await page.locator('button.tab').nth(0).click(); // the New tab opens the create screen
  await page.getByRole('button', { name: 'Play with friends' }).click();

  // The online/offline segment (Invite a friend / Pass and play) is absent — only the invite form shows.
  await expect(page.getByRole('button', { name: 'Pass and play' })).toHaveCount(0);
  await expect(page.getByRole('button', { name: 'Invite a friend' })).toHaveCount(0);
});

test('a blocked telegram-web-app.js does not hang the diagnostic screen', async ({ page }) => {
  // Simulate a network where telegram.org is unreachable: the SDK fetch fails. Because the SPA
  // loads the SDK dynamically with a timeout (not a render-blocking <script>), a failed/blocked
  // fetch must not strand the page — the diagnostic screen still renders, reporting no SDK. (This
  // route overrides the fixture's empty-body fulfill; the later registration wins.)
  await page.route('**/telegram-web-app.js*', (route) => route.abort());
  await page.goto('/telegram/');

  await expect(page.getByRole('button', { name: 'Share' })).toBeVisible();
  // The diagnostic names the load outcome: a failed fetch reads as sdk-load: error.
  await expect(page.getByText('sdk-load: error')).toBeVisible();
});
