@seedalpha/moment/index.js

Extracted version of Momentjs

/*
 * Seed Alpha's momentjs implementation
 */

var extend = require('@seedalpha/extend');

var defaults = {
  _date: new Date(),
  _localeDateOptions: {
    weekday: "short", 
    year: "numeric", 
    month: "short", 
    day: "numeric"
  }
};

var checkISOString = function(ISOString) {
  if (ISOString.length == 24 && !isNaN(new Date(ISOString).getTime())) {
    return { _date: new Date(ISOString) };
  } else {
    return;
  }
}

/**
 * [SeedMoment Constructor]
 */
var SeedMoment = function(options) {
  if (typeof options === 'string') { 
    options = checkISOString(options) ||  { _date: new Date() };
  }
  this._options = extend({}, defaults, options);  
  this._date = this._options._date;
}

/**
 * [SeedMoment Prototype]
 */
SeedMoment.prototype = {
  getRelativeTime: function() {
    var ms = new Date().getTime() - this._date.getTime();
    var sec = Math.floor(ms / 1000);
    var min = Math.floor(sec / 60);
    var hr = Math.floor(min / 60);
    var day = Math.floor(hr / 24);
    if (day > 6) {
      return this._date.toLocaleDateString('en', this._options._localeDateOptions);
    } else if (hr > 47) {
      return day + ' days ago';
    } else if (hr > 23) {
      return 'a day ago';
    } else if (min > 90) {
      return hr + ' hours ago';
    } else if (min > 45) {
      return 'an hour ago';
    } else if (sec > 90) {
      return min + ' minutes ago';
    } else if (sec > 45) {
      return 'a minute ago';
    } else if (sec > 10) {
      return sec + ' seconds ago';
    } else {
      return 'just now';
    }
  }
}

exports = module.exports = SeedMoment;