const { test, expect } = require('@playwright/test');
const { TOKEN } = require('./global-setup');

// The token sets a cookie, so every test starts by presenting it once.
test.beforeEach(async ({ page }) => {
  await page.goto(`/?token=${TOKEN}`);
  await expect(page.locator('#feedlist')).toBeVisible();
});

test('the page loads and lists the configured feeds', async ({ page }) => {
  // Regression: a ReferenceError in the script left the shell rendered and the sidebar
  // empty, with every handler below the error dead. Server-side checks all passed.
  await expect(page.locator('.feed')).toHaveCount(2, { timeout: 15_000 });
  await expect(page.getByText('Test Show')).toBeVisible();
  const errors = [];
  page.on('pageerror', e => errors.push(e.message));
  await page.reload();
  await expect(page.locator('.feed').first()).toBeVisible();
  expect(errors, 'the page script must not throw at load').toEqual([]);
});

test('the theme toggle actually changes the theme', async ({ page }) => {
  // Regression: this button was wired after a line that threw, so it did nothing.
  const before = await page.evaluate(() => document.documentElement.dataset.theme || 'system');
  await page.locator('#theme').click();
  await expect
    .poll(() => page.evaluate(() => document.documentElement.dataset.theme))
    .not.toBe(before);
});

test('settings opens and saves the global schedule', async ({ page }) => {
  await page.locator('#prefs').click();
  await expect(page.locator('#modal.on')).toBeVisible();
  await expect(page.locator('#gnum')).toBeVisible();
  await page.locator('#gnum').fill('4');
  await page.locator('#gunit').selectOption('h');
  await page.locator('#gsave').click();
  await expect(page.locator('#modal.on')).toBeHidden();

  // It must survive a reload, i.e. actually reach the config.
  await page.locator('#prefs').click();
  await expect(page.locator('#gnum')).toHaveValue('4');
  await expect(page.locator('#gunit')).toHaveValue('h');
});

test('episodes show with their metadata, and notes expand', async ({ page }) => {
  await page.getByText('Test Show').click();
  await expect(page.locator('.ep').first()).toBeVisible({ timeout: 20_000 });
  await expect(page.getByText('First Episode')).toBeVisible();
  // Newest first, so target the episode by name rather than by position.
  const first = page.locator('.ep', { hasText: 'First Episode' });
  await expect(first).toContainText('S1E1');
  await expect(first).toContainText('30:30');          // itunes:duration 1830
  await expect(page.locator('.ep', { hasText: 'Second Episode' })).toContainText('15:00');

  await first.locator('.t').click();
  await expect(page.locator('.notes').first()).toContainText('Show notes for the first one');
});

test('the filter tabs change what is listed', async ({ page }) => {
  await page.getByText('Test Show').click();
  await expect(page.locator('.ep').first()).toBeVisible({ timeout: 20_000 });
  const unread = await page.locator('.ep').count();

  await page.locator('.tabs button', { hasText: 'All' }).first().click();
  await expect(page.locator('#count')).toContainText('episode');
  expect(await page.locator('.ep').count()).toBeGreaterThanOrEqual(unread);

  await page.locator('.tabs button', { hasText: 'Flagged' }).first().click();
  await expect(page.locator('#count')).toContainText('0 episodes');
});

test('a feed URL is editable and has a copy button', async ({ page }) => {
  await page.getByText('Test Show').click();
  await page.locator('.btn', { hasText: 'Settings' }).first().click();
  await expect(page.locator('#surl')).toHaveValue(/show\.xml/);
  await expect(page.locator('#scopy')).toBeVisible();

  // navigator.clipboard is absent over plain http, so the button must not throw.
  const errors = [];
  page.on('pageerror', e => errors.push(e.message));
  await page.locator('#scopy').click();
  await expect(page.locator('#scopy')).toHaveText(/Copied|Failed/);
  expect(errors).toEqual([]);
});

test('the log view has tabs and shows daemon traffic', async ({ page }) => {
  await page.locator('#logs').click();
  await expect(page.locator('#logbox')).toBeVisible();
  await expect(page.locator('#logtabs button')).toHaveCount(4);

  // Generate traffic, then check the Daemon I/O tab shows both directions.
  await page.locator('#logtabs button', { hasText: 'Daemon I/O' }).click();
  await page.evaluate(() =>
    fetch('/api/fetch', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ force: true }),
    }));
  await expect(page.locator('#logbox .l').first()).toBeVisible({ timeout: 15_000 });
  await expect(page.locator('#logbox')).toContainText('"cmd":"fetch"', { timeout: 15_000 });
  await expect(page.locator('#logbox')).toContainText('"ev":', { timeout: 15_000 });
});

test('an OPML subscription is a collapsible folder', async ({ page }) => {
  // Read the subscription so its feeds exist.
  await page.evaluate(() =>
    fetch('/api/fetch', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ feed: 'test-subscriptions', force: true }),
    }));

  const chev = page.locator('.feed .chev');
  await expect(chev).toBeVisible({ timeout: 20_000 });

  // Closed by default: the child is not listed until the folder is opened.
  const before = await page.locator('.feed').count();
  await chev.click();
  await expect(page.locator('.feed')).toHaveCount(before + 1);
  // Scoped to the sidebar: the name also appears as the page heading once selected.
  await expect(page.locator('#feedlist').getByText('Grouped Show')).toBeVisible();

  // The subscription's own page lists what is inside it.
  await page.locator('.feed', { hasText: 'Test Subscriptions' }).first().click();
  await expect(page.locator('.childrow')).toHaveCount(1);
});