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

test('locks the comment and retries one failed upload while another is running', async ({ page }, info) => {
  await page.addInitScript(() => localStorage.setItem('pipu.locale', 'ru'));
  await page.goto('/login');
  await page.getByLabel('Логин', { exact: true }).fill('mobile-admin');
  await page.getByRole('textbox', { name: 'Пароль', exact: true }).fill('mobile-admin-password');
  await page.getByRole('button', { name: 'Войти', exact: true }).click();
  await expect(page.getByRole('button', { name: 'Меню профиля' })).toBeVisible();
  await page.evaluate(() => {
    const original = window.fetch;
    window.fetch = async (input, init) => {
      const req = new Request(input, init);
      const path = new URL(req.url).pathname;
      const json = (data: unknown, status = 200) => new Response(JSON.stringify(data), { status, headers: { 'Content-Type': 'application/json' } });
      if (path === '/api/v1/uploads/quota') return json({ limit_bytes: 1e9, used_bytes: 0, per_user_limit_bytes: null, user_used_bytes: 0, max_file_bytes: 1e9 });
      if (path === '/api/v1/uploads/precheck') {
        const body = await req.json();
        return json({ files: body.files.map((f: { client_id: string }) => ({ client_id: f.client_id, result: 'accepted' })) });
      }
      if (path === '/api/v1/uploads' && req.method === 'POST') {
        const body = await req.json();
        document.documentElement.dataset.uploadComment = body.comment;
        document.documentElement.dataset.uploadReservations = String(Number(document.documentElement.dataset.uploadReservations ?? 0) + 1);
        return json({ batch_id: 'test-batch', files: body.files.map((f: { client_id: string; name: string }) => ({ client_id: f.client_id, upload_file_id: f.name, tus_url: `/api/v1/uploads/files/${f.name}` })) }, 201);
      }
      return original(input, init);
    };
    history.pushState({}, '', '/uploads/new');
    window.dispatchEvent(new PopStateEvent('popstate'));
  });

  let retry = false;
  let failures = 0;
  let resumedOffset: string | undefined;
  let releaseSecond!: () => void;
  const secondPending = new Promise<void>((resolve) => { releaseSecond = resolve; });
  await page.route('**/api/v1/uploads/files/*', async (route) => {
    const req = route.request();
    const first = req.url().endsWith('/first.flac');
    if (req.method() === 'HEAD') {
      await route.fulfill({ status: 200, headers: { 'Upload-Length': '1024', 'Upload-Offset': first && failures > 0 ? '256' : '0', 'Tus-Resumable': '1.0.0' } });
      return;
    }
    if (first && !retry) {
      failures++;
      await route.fulfill({ status: 507, contentType: 'application/problem+json', body: JSON.stringify({ status: 507, code: 'uploads.storage_full', detail: 'upload storage is full' }) });
      return;
    }
    if (first) resumedOffset = req.headers()['upload-offset'];
    else await secondPending;
    await route.fulfill({ status: 204, headers: { 'Upload-Offset': '1024', 'Tus-Resumable': '1.0.0' } });
  });

  const inputs = page.locator('input[type=file]');
  await inputs.first().setInputFiles(['first.flac', 'second.flac'].map((name) => ({ name, mimeType: 'audio/flac', buffer: Buffer.alloc(1024) })));
  const comment = page.getByRole('textbox', { name: 'Комментарий для администратора' });
  await comment.fill('Lossless album');
  await expect(comment).toBeEnabled();
  const send = page.getByRole('button', { name: /^Отправить/ });
  await expect(send).toBeEnabled();
  await send.click();
  await expect(comment).toBeDisabled();
  await expect(page.getByRole('button', { name: 'Очистить список' })).toBeDisabled();
  await expect(page.getByText(/На сервере закончилось место для загрузок/)).toBeVisible();
  const retryButton = page.getByRole('button', { name: 'Повторить загрузку first.flac', exact: true });
  await expect(retryButton).toBeEnabled();
  await page.setViewportSize({ width: 390, height: 844 });
  await expect.poll(() => page.evaluate(() => document.documentElement.scrollWidth - innerWidth)).toBeLessThanOrEqual(1);
  await page.screenshot({ path: info.outputPath('upload-retry.png'), fullPage: true });
  expect(failures).toBe(1);
  retry = true;
  await retryButton.click();
  await expect.poll(() => resumedOffset).toBe('256');
  await expect(retryButton).toHaveCount(0);
  await expect(comment).toBeDisabled();
  await expect(page.locator('html')).toHaveAttribute('data-upload-reservations', '1');
  await expect(page.locator('html')).toHaveAttribute('data-upload-comment', 'Lossless album');
  releaseSecond();
  await expect(page.getByText(/Готово: 2 файла/)).toBeVisible();
  await page.getByRole('button', { name: 'Загрузить ещё', exact: true }).click();
  await inputs.first().setInputFiles({ name: 'third.flac', mimeType: 'audio/flac', buffer: Buffer.alloc(1024) });
  await expect(comment).toBeEnabled();
});