Function computeFriendScores

packages/core/src/query/contact-scoring.ts:146–168

(items: readonly T[])

}

export function computeFriendScores<T extends FriendScoreInput>(items: readonly T[]): Map<T, ContactScoringResult> {
  const messageScores = rankPercentiles(items, (item) => Math.log1p(nonNegative(item.privateMessageCount)))
  const regularityByItem = new Map(items.map((item) => [item, computePrivateRegularity(item.activeMonths)]))
  const regularityScores = rankPercentiles(items, (item) => regularityByItem.get(item) ?? 0)
  const groupScores = rankPercentiles(items, (item) => nonNegative(item.commonGroupCount))
  const result = new Map<T, ContactScoringResult>()

  for (const item of items) {
    result.set(
      item,
      computeFriendScore({
        privateMessageScore: messageScores.get(item) ?? 0,
        privateRegularityScore: regularityScores.get(item) ?? 0,
        commonGroupScore: groupScores.get(item) ?? 0,
        privateMessageCount: nonNegative(item.privateMessageCount),
        activePrivateMonths: getActiveMonthIndexes(item.activeMonths).length,
        commonGroupCount: nonNegative(item.commonGroupCount),
      })
    )
  }

  return result
}

export function computeNonFriendScore(components: NonFriendScoreComponents): ContactScoringResult {
  const coOccurrenceScore = clamp01(components.coOccurrenceScore)