import { test, expect } from '@playwright/test';
import {
  mapWordsToSentenceOffsets,
} from '@openreader/compute-core';

test.describe('whisper alignment mapping', () => {
  test('maps words to sentence offsets with punctuation and repeated spaces', () => {
    const aligned = mapWordsToSentenceOffsets('Hello, world  again.', [
      { word: 'Hello', start: 0, end: 0.25 },
      { word: 'world', start: 0.25, end: 0.5 },
      { word: 'again', start: 0.5, end: 1.0 },
    ]);

    expect(aligned.words).toHaveLength(3);
    expect(aligned.words[0].charStart).toBe(0);
    expect(aligned.words[0].charEnd).toBe(5);
    expect(aligned.words[1].charStart).toBeGreaterThan(aligned.words[0].charEnd);
    expect(aligned.words[2].charStart).toBeGreaterThan(aligned.words[1].charEnd);
    expect(aligned.words[2].charEnd).toBeLessThanOrEqual('Hello, world  again.'.length);
  });
});