tsms/src/app/utils/manhourUtils.ts

import zipWith from "lodash/zipWith";

export const roundToNearestQuarter = (n: number): number => {
  return Math.round(n / 0.25) * 0.25;
};

export const distributeQuarters = (hours: number, parts: number): number[] => {
  if (!parts) return [];

  const numQuarters = hours * 4;
  const equalParts = Math.floor(numQuarters / parts);
  const remainders = Array(numQuarters % parts).fill(1);

  return zipWith(
    Array(parts).fill(equalParts),
    remainders,
    (a, b) => a + (b || 0),
  ).map((quarters) => quarters / 4);
};