import { describe, expect, it } from 'vitest'
import { formatTranscriptLines, parseTranscriptLines } from '../src/meeting-transcript'

describe('meeting transcript lines', () => {
  it('parses timestamps and speakers written by the desktop recorder and diarization', () => {
    const text = '[00:05] 안녕하세요\n\n[01:12] [화자 2] 다음 안건입니다\n[12:03] [Speaker 1]   끝'
    expect(parseTranscriptLines(text)).toEqual([
      { timestampMs: 5_000, timed: true, speaker: null, text: '안녕하세요' },
      { timestampMs: 72_000, timed: true, speaker: '화자 2', text: '다음 안건입니다' },
      { timestampMs: 723_000, timed: true, speaker: 'Speaker 1', text: '끝' },
    ])
  })

  it('keeps untimed lines (phone transcripts, manual edits) and carries the last time forward', () => {
    expect(parseTranscriptLines('first line\n[00:30] timed\nfollow-up')).toEqual([
      { timestampMs: 0, timed: false, speaker: null, text: 'first line' },
      { timestampMs: 30_000, timed: true, speaker: null, text: 'timed' },
      { timestampMs: 30_000, timed: false, speaker: null, text: 'follow-up' },
    ])
  })

  it('drops empty and timestamp-only lines and round-trips through the formatter', () => {
    const text = '[00:01] [화자 1] a\n[00:02]\nb'
    const lines = parseTranscriptLines(text)
    expect(lines).toHaveLength(2)
    expect(formatTranscriptLines(lines)).toBe('[00:01] [화자 1] a\nb')
  })

  it('returns nothing for empty input', () => {
    expect(parseTranscriptLines(null)).toEqual([])
    expect(parseTranscriptLines('  \n ')).toEqual([])
  })
})