Edit - factory.js

Edit: factory.js

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = relativeDateFactory;
var calculateDelta = function calculateDelta(now, date) {
  return Math.round(Math.abs(now - date) / 1000);
};

function relativeDateFactory(translations) {
  return function relativeDate(date) {
    var now = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new Date();

if (!(date instanceof Date)) {
      date = new Date(date);
    }

var delta = null;

var minute = 60;
    var hour = minute * 60;
    var day = hour * 24;
    var week = day * 7;
    var month = day * 30;
    var year = day * 365;

delta = calculateDelta(now, date);

if (delta > day && delta < week) {
      date = new Date(date.getFullYear(), date.getMonth(), date.getDate(), 0, 0, 0);
      delta = calculateDelta(now, date);
    }

var translate = function translate(translatePhrase, timeValue) {
      var key = void 0;

if (translatePhrase === 'justNow') {
        key = translatePhrase;
      } else if (now >= date) {
        key = translatePhrase + 'Ago';
      } else {
        key = translatePhrase + 'FromNow';
      }

var translation = translations[key];

if (typeof translation === 'function') {
        return translation(timeValue);
      }

return translation.replace('{{time}}', timeValue);
    };

switch (false) {
      case !(delta < 30):
        return translate('justNow');

case !(delta < minute):
        return translate('seconds', delta);

case !(delta < 2 * minute):
        return translate('aMinute');

case !(delta < hour):
        return translate('minutes', Math.floor(delta / minute));

case Math.floor(delta / hour) !== 1:
        return translate('anHour');

case !(delta < day):
        return translate('hours', Math.floor(delta / hour));

case !(delta < day * 2):
        return translate('aDay');

case !(delta < week):
        return translate('days', Math.floor(delta / day));

case Math.floor(delta / week) !== 1:
        return translate('aWeek');

case !(delta < month):
        return translate('weeks', Math.floor(delta / week));

case Math.floor(delta / month) !== 1:
        return translate('aMonth');

case !(delta < year):
        return translate('months', Math.floor(delta / month));

case Math.floor(delta / year) !== 1:
        return translate('aYear');

default:
        return translate('overAYear');
    }
  };
}
module.exports = exports['default'];

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