/**
 * Portfolio-Rang (AP1.8a) — niedrigerer Rank = höhere Aufmerksamkeit.
 */

/**
 * @template {{ id: string, portfolio_rank?: number | null }} T
 * @param {T[]} items
 */
export function sortByPortfolioRank(items) {
  return [...items].sort(
    (a, b) =>
      (a.portfolio_rank ?? Number.MAX_SAFE_INTEGER) -
        (b.portfolio_rank ?? Number.MAX_SAFE_INTEGER) ||
      String(a.id).localeCompare(String(b.id)),
  )
}

/**
 * @param {number | null | undefined} rank
 */
export function formatPortfolioRank(rank) {
  if (rank == null || Number.isNaN(rank)) return null
  return `#${rank + 1}`
}