// @ts-check
// Browser-level checks for span-mode casting: the modules load with the audiobook
// section, the pure segmenter works in the real page, and the engine switch honours
// localStorage. The LLM-driven flow itself is covered by the unit tests and the
// scored regression runs (architecture/audiobook-attribution.md).
const { test, expect } = require('@playwright/test');

async function openReader(page) {
  await page.goto('/', { waitUntil: 'domcontentloaded' });
  await page.waitForSelector('#app-skeleton', { state: 'detached', timeout: 15_000 });
  await page.waitForFunction(() => typeof window.navTo === 'function', null, { timeout: 15_000 });
  await page.evaluate(() => window.navTo('s-reader'));
  await page.waitForFunction(() => typeof window.audiobookCastSpans === 'function', null, { timeout: 15_000 });
}

test('span-mode modules load and segment quoted speech in the page', async ({ page }) => {
  await openReader(page);
  const out = await page.evaluate(() => {
    const filler = Array.from({ length: 6 }, (_, i) => `»Zeile ${i} ist ein Satz.« sagte er.`).join(' ');
    const spans = window.TTVC.audiobook.spans.segmentByQuotes(`${filler} Der Zwerg schneuzte sich. »Na los!« Er ging.`);
    return spans.slice(-3).map((s) => `${s.kind}:${s.text}`);
  });
  expect(out.some((s) => s === 'dialogue:Na los!')).toBe(true);
  expect(out[out.length - 1].startsWith('narration:')).toBe(true);
});

test('span mode is on by default and can be switched off per browser', async ({ page }) => {
  await openReader(page);
  expect(await page.evaluate(() => window.audiobookSpanModeEnabled())).toBe(true);
  await page.evaluate(() => localStorage.setItem('ab-span-mode', '0'));
  expect(await page.evaluate(() => window.audiobookSpanModeEnabled())).toBe(false);
  await page.evaluate(() => localStorage.removeItem('ab-span-mode'));
});