@exabytellc/utils/dist/timeSince/_timeSince.js

EB react utils to make everything a little easier!

import { handleTryCatch } from "../_helpers/handleError";
import { isDate, isStr } from "../types";

const TIMES = [
  ['millisecond', 1000],
  ['second', 60],
  ['minute', 60],
  ['hour', 24],
  ['day', 7],
  ['week', 4.34524],
  ['month', 12],
  ['year', null]
];

export default function timeSince(date, { minUnit = "millisecond", compareDate = new Date() } = {}) {
  return handleTryCatch({
    n: "timeSince",
    f: (isDate(date) || isStr(date)) && isStr(minUnit) && (isDate(compareDate) || isStr(compareDate)),
    e: () => {
      var time = new Date(compareDate).getTime() - new Date(date).getTime();
      // get current level
      var currentI = 0;
      var value = Math.abs(time);
      for (let time of TIMES) {
        // get and check thresh
        const threshold = time[1];
        if (!threshold) break;
        // current
        currentI++;
        // check value
        value = value / threshold;
        if (value > 1) continue;
      }
      // retrace
      var timeSince = [];
      for (let i = currentI; i >= 0; i--) {
        const CT = TIMES[i][0];
        let int = Math.floor(value);
        let dec = value - int;
        if (int > 0) timeSince.push({ name: CT, value: int });
        if (minUnit == CT) break;
        if (i > 0) value = dec * TIMES[i - 1][1];
      }
      // return
      return { state: Math.sign(time) > 0 ? 'past' : 'future', time: timeSince };
    }
  });
}