Function toFreshnessScore

app/utils/compare-scatter-chart.ts:11–35

(value: unknown, maximumAgeInDays = 365)

}

function toFreshnessScore(value: unknown, maximumAgeInDays = 365): number | null {
  if (!value) {
    return null
  }

  const date = value instanceof Date ? value : new Date(String(value))

  if (Number.isNaN(date.getTime())) {
    return null
  }

  const ageInMilliseconds = Date.now() - date.getTime()
  const ageInDays = ageInMilliseconds / MILLISECONDS_IN_A_DAY
  const normalizedFreshness = 1 - ageInDays / maximumAgeInDays

  if (normalizedFreshness < 0) {
    return 0
  }

  if (normalizedFreshness > 1) {
    return 100
  }

  return normalizedFreshness * 100
}

function getNumericFacetValue(
  packageData: PackageComparisonData,