ridibooks / simple-notifier

const moment = require('moment');

/**

 * Format all dates in the received model

 * @param {Array|Date|Object} model

 * @param {string} [formatString]

 * @returns {*}

 */

exports.formatDates = (model, formatString) => {

  if (model instanceof Array) {

    for (let i = 0; i < model.length; i++) {

      model[i] = exports.formatDates(model[i], formatString);

    }

  } else if (model instanceof Date || model instanceof moment) {

    return exports.formatDate(model, formatString);

  } else if (model instanceof Object) {

    const keys = Object.keys(model);

    for (let i = 0; i < keys.length; i++) {

      model[keys[i]] = exports.formatDates(model[keys[i]], formatString);

    }

  }

  return model;

};

/**

 * Localize date

 * @param {Date} date

 * @param {number} [utcOffset]

 * @returns {moment}

 */

exports.toLocalDate = (date, utcOffset) => {

  return moment(date).utcOffset(typeof utcOffset === 'undefined' ? 9 : utcOffset);

};

/**

 * Format date to string

 * @param {Date} date

 * @param {string} [formatString]

 * @param {number} [utcOffset]

 * @returns {string}

 */

exports.formatDate = (date, formatString, utcOffset) => {

  return exports.toLocalDate(date, utcOffset).format(formatString);

};