@fav/type.to-date/lib/from-slashed-ymd-and-hms.js

Convert a string in various date format to a date object.

'use strict';

var isString = require('@fav/type.is-string');
var isValidDate = require('@fav/type.is-valid-date');

var newDate = require('./new-date');

function fromHyphenedYmdAndHms(text) {
  if (!isString(text)) {
    return null;
  }

  /* eslint-disable max-len */
  var result = /^([\+\-]?[0-9]+)\/([0-9]+)\/([0-9]+)\s+([0-9]+):([0-9]+):([0-9]+)(\.[0-9]+){0,1}$/.exec(text);
  /* eslint-enable max-len */

  if (!result) {
    return null;
  }

  var year = parseInt(result[1], 10);
  var month = parseInt(result[2], 10);
  var day = parseInt(result[3], 10);
  var hour = parseInt(result[4], 10);
  var minute = parseInt(result[5], 10);
  var second = parseInt(result[6], 10);

  var millis;
  if (result[7]) {
    millis = parseInt((result[7].slice(1) + '000').slice(0, 3), 10);
  } else {
    millis = 0;
  }

  var date = newDate(year, month - 1, day, hour, minute, second, millis);
  return isValidDate(date) ? date : null;
}

module.exports = fromHyphenedYmdAndHms;