maycur-business/lib/utils/formula/formularFunction/datedif.js

maycur business react components of web

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = datedif;

var _parsedate = _interopRequireDefault(require("./parsedate"));

var _isnan = _interopRequireDefault(require("./isnan"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

// Copyright 2015-2018 FormBucket LLC
// DATEDIF return the difference between two dates given a start date, end date and unit.
function datedif(start_date, end_date, unit) {
  var second = 1000,
      minute = second * 60,
      hour = minute * 60,
      day = hour * 24,
      week = day * 7;
  start_date = (0, _parsedate["default"])(start_date);
  end_date = (0, _parsedate["default"])(end_date);
  var timediff = end_date - start_date;
  if ((0, _isnan["default"])(timediff)) return NaN;

  switch (unit) {
    case "Y":
      return end_date.getFullYear() - start_date.getFullYear();

    case "M":
      return end_date.getFullYear() * 12 + end_date.getMonth() - (start_date.getFullYear() * 12 + start_date.getMonth());

    case "W":
      return Math.floor(timediff / week);

    case "D":
      return Math.floor(timediff / day);

    case "MD":
      return end_date.getdate() - start_date.getdate();

    case "YM":
      return end_date.getMonth() - start_date.getMonth();

    case "YD":
      return new Error("NOT IMPLEMENTED");

    default:
      return undefined;
  }
}