// The navigation (docs/navigation.md): Home, Lesen (Bücher, Zeitschriften, Nachrichten,
// Blogs), Hören (Hörbücher, Podcasts, Radio, Ambient), on the web page's own bar.
const { test, expect } = require('@playwright/test');
const path = require('path');

test.use({ storageState: path.join(__dirname, '.auth', 'user.json') });

const visiblePanel = page => page.evaluate(() =>
  [...document.querySelectorAll('section.tab-panel')].filter(p => p.style.display !== 'none').map(p => p.id));

test('wide: every section in the bar under its group, each shows its panel and view', async ({ page }) => {
  await page.setViewportSize({ width: 1200, height: 800 });
  await page.goto('/#books');
  const wide = page.locator('#tabs .nav-wide');
  await expect(wide.locator('.nav-group-label')).toHaveText(['Lesen', 'Hören']);
  await expect(wide.locator('[data-nav]')).toHaveText(
    ['Home', 'Bücher', 'Zeitschriften', 'Nachrichten', 'Blogs', 'Hörbücher', 'Podcasts', 'Radio', 'Ambient', 'Fokus', 'Abos & Quellen']);

  await wide.locator('[data-nav="blogs"]').click();
  await expect(page).toHaveURL(/#blogs$/);
  expect(await visiblePanel(page)).toEqual(['tab-feeds']);
  expect(await page.evaluate(() => localStorage.getItem('diora_feeds_view'))).toBe('blogs');
  await expect(page.locator('#tab-feeds .fd-seg')).toBeHidden();   // the bar chooses, not the tab
  await expect(page.locator('#nav-segments')).toBeHidden();

  await wide.locator('[data-nav="audiobooks"]').click();
  expect(await visiblePanel(page)).toEqual(['tab-audiobooks']);
  await expect(page.locator('#audiobook-shelf')).toBeVisible();
  await expect(wide.locator('[data-nav="audiobooks"]')).toHaveClass(/active/);
});

test('narrow: three groups, the sections as a row on top, each group remembers its last', async ({ page }) => {
  await page.setViewportSize({ width: 390, height: 800 });
  await page.goto('/#news');
  const narrow = page.locator('#tabs .nav-narrow');
  await expect(narrow.locator('[data-nav]')).toHaveText(['Home', 'Lesen', 'Hören', '']);
  await expect(narrow.locator('[data-nav="sources"] svg.dnav-ic')).toBeVisible();
  await expect(narrow.locator('[data-nav="lesen"]')).toHaveClass(/active/);
  const segs = page.locator('#nav-segments');
  await expect(segs.locator('[data-nav]')).toHaveText(['Bücher', 'Zeitschriften', 'Nachrichten', 'Blogs']);
  await expect(segs.locator('[data-nav="news"]')).toHaveClass(/active/);

  await narrow.locator('[data-nav="hoeren"]').click();
  await segs.locator('[data-nav="radio"]').click();
  expect(await visiblePanel(page)).toEqual(['tab-radio']);
  await narrow.locator('[data-nav="lesen"]').click();
  await expect(page).toHaveURL(/#news$/);   // back where Lesen was left
  await narrow.locator('[data-nav="hoeren"]').click();
  await expect(page).toHaveURL(/#radio/);
});

test('old links and direct panel switches land in their section', async ({ page }) => {
  await page.setViewportSize({ width: 1200, height: 800 });
  await page.goto('/#feeds');
  expect(await visiblePanel(page)).toEqual(['tab-feeds']);
  await expect(page.locator('#tabs .nav-wide [data-nav].active')).toHaveText(/Nachrichten|Blogs/);
  await page.evaluate(() => showTab('podcasts'));
  await expect(page.locator('#tabs [data-nav="podcasts"]')).toHaveClass(/active/);
  await expect(page).toHaveURL(/#podcasts$/);
  await page.reload();
  expect(await visiblePanel(page)).toEqual(['tab-podcasts']);   // remembered
});

test('Abos & Quellen: one page for every subscription, reached from the feeds too', async ({ page }) => {
  await page.setViewportSize({ width: 1200, height: 800 });
  await page.goto('/#news');
  await page.locator('#tab-feeds [data-act="manage"]').first().click();
  await expect(page).toHaveURL(/#sources$/);
  const tab = page.locator('#tab-sources');
  await expect(tab.locator('.src-h1')).toHaveText('Abos & Quellen');
  await expect(tab.locator('.src-add-q')).toBeVisible();
  await expect(tab.locator('.src-chip.on')).toContainText('Nachrichten');   // came from the news
  await tab.locator('[data-filter="all"]').click();
  await expect(tab.locator('.src-chip.on')).toContainText('Alle');
});

test('the library: a header with search, sort, layout and +, the add menu', async ({ page }) => {
  await page.setViewportSize({ width: 1200, height: 800 });
  await page.goto('/#books');
  const list = page.locator('#book-list');
  await expect(list.locator('.lib-h')).toHaveText('Bücher');
  await expect(list.locator('.lib-q')).toBeVisible();
  await expect(list.locator('.lib-sort')).toBeVisible();
  await expect(page.locator('#book-drop-zone')).toBeHidden();   // adding is behind +
  await list.locator('[data-lib="add"]').click();
  await expect(page.locator('.dfo-sheet')).toContainText('E-Book-Datei');
  await page.locator('.dfo-sheet [data-x]').click();
  await expect(page.locator('.dfo-sheet')).toHaveCount(0);
  await page.goto('/#magazines');
  await expect(list.locator('.lib-h')).toHaveText('Zeitschriften');
});

test('several books at once; one already there is left out', async ({ page }) => {
  const files = ['Eins', 'Zwei'].map(n => path.join(__dirname, '.auth', `many-${n}.epub`));
  await page.goto('/#books');
  await page.waitForFunction(() => typeof _importMany === 'function' && Array.isArray(_lastBookListData));
  const status = page.locator('#book-upload-status');
  await page.locator('#book-file-input').setInputFiles(files);
  await expect(status).toContainText('2 Bücher hinzugefügt', { timeout: 30000 });
  await page.waitForFunction(() => _lastBookListData.filter(b => /^Mehrfach/.test(b.title)).length === 2);
  await page.locator('#book-file-input').setInputFiles(files);
  await expect(status).toContainText('2 schon da', { timeout: 30000 });
  // Out again, so the other tests see the library as before.
  const books = await page.evaluate(() => _lastBookListData.filter(b => /^Mehrfach/.test(b.title)).map(b => b.id));
  for (const id of books) await page.request.post(`/books/${id}/delete/`);
});

test('editions: two books joined show once with their formats, set apart show twice', async ({ page }) => {
  await page.setViewportSize({ width: 1200, height: 800 });
  const files = ['Eins', 'Zwei'].map(n => path.join(__dirname, '.auth', `many-${n}.epub`));
  await page.goto('/#books');
  await page.waitForFunction(() => typeof _importMany === 'function' && Array.isArray(_lastBookListData));
  await page.locator('#book-file-input').setInputFiles(files);
  await page.waitForFunction(() => _lastBookListData.filter(b => /^Mehrfach/.test(b.title) && b.id).length === 2, null, { timeout: 30000 });
  const ids = await page.evaluate(() => _lastBookListData.filter(b => /^Mehrfach/.test(b.title)).map(b => b.id));
  const list = page.locator('#book-list');
  // New books: as cards under "Ungelesen" (not in the "Zuletzt gelesen" area on top).
  const unread = () => page.evaluate(() => { _lib.status = 'unread'; renderBookList(_lastBookListData); });
  await unread();
  const cards = () => list.locator('.lib-grid [data-lib-book]').filter({ hasText: 'Mehrfach' });
  await expect(cards()).toHaveCount(2);
  // Choose both, join them.
  await page.evaluate(ids => { _lib.selecting = new Set(ids); renderBookList(_lastBookListData); }, ids);
  await list.locator('[data-lib="sel-editions"]').click();
  await page.waitForFunction(ids => {
    const w = ids.map(id => _lastBookListData.find(b => b.id === id).work);
    return w[0] && w[0] === w[1];
  }, ids);
  await expect(cards()).toHaveCount(1);
  await expect(cards().locator('.lib-ed')).toHaveText('EPUB');
  // The work survives a reload (it is in the encrypted meta).
  await page.reload();
  await page.waitForFunction(() => Array.isArray(_lastBookListData) && _lastBookListData.length);
  await unread();
  await expect(cards()).toHaveCount(1);
  // Ausgaben: both listed; one set apart, and the other is on its own again.
  await cards().locator('.lib-more').click({ force: true });
  await page.locator('.dfo-sheet .lib-sheet-item', { hasText: 'Ausgaben (2)' }).click();
  await expect(page.locator('.dfo-sheet .lib-ed-row')).toHaveCount(2);
  await page.locator('.dfo-sheet [data-unlink]').first().click();
  await page.waitForFunction(ids => ids.every(id => !_lastBookListData.find(b => b.id === id).work), ids);
  await expect(cards()).toHaveCount(2);
  await page.evaluate(() => { _lib.status = 'all'; });
  for (const id of ids) await page.request.post(`/books/${id}/delete/`);
});

test('a meta change from an old list goes onto the current meta (409, then again)', async ({ page }) => {
  const files = [path.join(__dirname, '.auth', 'many-Eins.epub')];
  await page.goto('/#books');
  await page.waitForFunction(() => typeof _importMany === 'function' && Array.isArray(_lastBookListData));
  await page.locator('#book-file-input').setInputFiles(files);
  await page.waitForFunction(() => _lastBookListData.some(b => b.title === 'Mehrfach Eins' && b.id && b.meta_iv), null, { timeout: 30000 });
  const id = await page.evaluate(() => _lastBookListData.find(b => b.title === 'Mehrfach Eins').id);
  // Elsewhere the title changes; this page still has the old list.
  await page.evaluate(id => _updateBookMeta(id, {title: 'Anderswo umbenannt'}), id);
  await page.evaluate(id => {
    const b = _lastBookListData.find(x => x.id === id);
    b.title = 'Mehrfach Eins'; b.meta_iv = '000000000000000000000000';   // the old list
    bookMetaCache[id] = {...bookMetaCache[id], title: 'Mehrfach Eins'};
  }, id);
  await page.evaluate(id => _updateBookMeta(id, {folders: ['Probe']}), id);
  const meta = await page.evaluate(async id => {
    const row = (await (await fetch('/books/', {cache: 'no-store'})).json()).find(b => b.id === id);
    return JSON.parse(new TextDecoder().decode(await decryptBytes(await getOrCreateEncKey(), row.meta_iv, row.meta_ct)));
  }, id);
  expect(meta.title).toBe('Anderswo umbenannt');
  expect(meta.folders).toEqual(['Probe']);
  await page.request.post(`/books/${id}/delete/`);
});