const { test, expect } = require('@playwright/test');
const { openClassic } = require('./helpers/classic-fixture');
const id = 'wZzRoXymOUU';

for (const layout of ['classic', 'glass-stage']) for (const screen of ['downloads', 'settings']) {
  test(`${layout} ${screen}: Retry starts a fresh server job before preparation`, async ({ page }) => {
    await page.setViewportSize({ width: 390, height: 844 });
    await openClassic(page, { settings: { autoPreload: false } });
    const requests = [];
    await page.route(`**/api/download/${id}/retry`, route => {
      requests.push('retry:' + route.request().method());
      return route.fulfill({ status: 202, contentType: 'application/json', body: '{"ok":true,"state":"working"}' });
    });
    await page.route(`**/api/download/${id}/prepare*`, route => {
      requests.push('prepare');
      return route.fulfill({ contentType: 'application/json', body: '{"ok":true,"state":"ready","etag":"fixture","size":4096,"ext":"mp4"}' });
    });
    await page.evaluate(({ layout, screen, id }) => {
      data.settings.layout = layout; applyAppearance();
      window.OPFS.isSupported = () => true;
      window.OPFS.downloadVideo = async () => ({ ok: true, size: 4096 });
      SaveQueue.add({ id, title: 'Rock Medley', channel: 'Petra - Topic' });
      SaveQueue.state(id, 'failed', `ERROR: [youtube] ${id}: Video unavailable`);
      view = { type: screen }; render();
    }, { layout, screen, id });
    if (screen === 'settings') await page.locator('[data-section="downloads-storage"]').click();
    await page.getByRole('button', { name: 'Retry Rock Medley', exact: true }).click();
    await expect.poll(() => requests).toEqual(['retry:POST', 'prepare']);
    await expect.poll(() => page.evaluate(id => cachedIds.has(id), id)).toBe(true);
    expect(await page.evaluate(() => SaveQueue.pending().length)).toBe(0);
  });
}

test('normal resumptions do not force the server to restart a cache job', async ({ page }) => {
  await openClassic(page, { settings: { autoPreload: false } });
  let retries = 0;
  await page.route(`**/api/download/${id}/retry`, route => { retries++; return route.fulfill({ contentType: 'application/json', body: '{"ok":true}' }); });
  await page.route(`**/api/download/${id}/prepare*`, route => route.fulfill({ contentType: 'application/json', body: '{"ok":true,"state":"ready","etag":"fixture","size":4096}' }));
  await page.evaluate(async id => {
    window.OPFS.isSupported = () => true;
    window.OPFS.downloadVideo = async () => ({ ok: true, size: 4096 });
    await preload({ id, title: 'Rock Medley' }, { quiet: true });
  }, id);
  expect(retries).toBe(0);
  expect(await page.evaluate(id => cachedIds.has(id), id)).toBe(true);
});