const DEFAULT_WAVE_TYPE = 'CPM'
const DEFAULT_WAVE_FLU_TYPE = 'SQU'
const DEFAULT_DUTY_CYCLE = 50

export function normalizeFlickerData(flickerData) {
  const normalized = {
    flickerValue: flickerData?.flickerValue ?? null,
    fchagFre: flickerData?.fchagFre ?? '',
    fchagValue: flickerData?.fchagValue ?? '',
    waveType: flickerData?.waveType ?? DEFAULT_WAVE_TYPE,
    waveFluType: flickerData?.waveFluType ?? DEFAULT_WAVE_FLU_TYPE,
    fdutyCycle: flickerData?.fdutyCycle ?? DEFAULT_DUTY_CYCLE
  }

  const isBackendEmptyState =
    normalized.flickerValue == null &&
    normalized.fchagFre === '1' &&
    normalized.fchagValue === '2.724'

  if (isBackendEmptyState) {
    normalized.fchagFre = ''
    normalized.fchagValue = ''
  }

  return normalized
}