dtable-utils/lib/cell-value-get/geolocation.js

dtable common utils

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var group = require('../constants/group.js');
var column = require('../constants/column.js');
var number = require('../number.js');
var geolocation = require('../constants/geolocation.js');

/**
 * Convert decimal to DMS
 * @param {number} lat
 * @param {bool} isLat Latitude: N/S, Longitude: E/W
 * @returns { dms, direction }, object
 */
var convertToDMS = function convertToDMS(decimal) {
  var isLat = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  if (!number.isNumber(decimal) && typeof decimal !== 'string') return {};
  var numDecimal = typeof decimal === 'string' ? Number.parseFloat(decimal) : decimal;
  if (!number.isNumber(numDecimal)) return {};
  var degrees = Math.floor(Math.abs(numDecimal));
  var minutesDecimal = Number.parseFloat(((Math.abs(numDecimal) - degrees) * 60).toFixed(8));
  var minutes = Math.floor(minutesDecimal);
  var seconds = Number.parseFloat(((minutesDecimal - minutes) * 60).toFixed(8));
  var direction = '';
  if (isLat) {
    direction = numDecimal >= 0 ? geolocation.LAT_DIRECTION_TYPE.N : geolocation.LAT_DIRECTION_TYPE.S;
  } else {
    direction = numDecimal >= 0 ? geolocation.LNG_DIRECTION_TYPE.E : geolocation.LNG_DIRECTION_TYPE.W;
  }
  return {
    dms: "".concat(degrees).concat(geolocation.DMS_SPLITTER_TYPE.DEG).concat(minutes).concat(geolocation.DMS_SPLITTER_TYPE.MIN).concat(seconds).concat(geolocation.DMS_SPLITTER_TYPE.SEC),
    direction: direction
  };
};
var getLatLngDisplayString = function getLatLngDisplayString(lat, lng) {
  var _convertToDMS = convertToDMS(lat, true),
    lat_dms = _convertToDMS.dms,
    lat_direction = _convertToDMS.direction;
  var _convertToDMS2 = convertToDMS(lng),
    lng_dms = _convertToDMS2.dms,
    lng_direction = _convertToDMS2.direction;
  if (!lat_dms || !lng_dms) return '';
  return "".concat(lat_direction).concat(lat_dms, ", ").concat(lng_direction).concat(lng_dms);
};

/**
 * Get formatted geolocation
 * @param {object} loc
 * @param {object} formats , e.g. { geo_format, ... }
 * @param {string} hyphen Used as a connector between province, city, district and detail. Default as empty string
 * @returns formatted geolocation, string
 */
var getGeolocationDisplayString = function getGeolocationDisplayString(loc, formats) {
  var _ref = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {},
    _ref$hyphen = _ref.hyphen,
    hyphen = _ref$hyphen === void 0 ? '' : _ref$hyphen;
  if (!loc) return '';
  var _ref2 = formats || {},
    geo_format = _ref2.geo_format;
  switch (geo_format) {
    case column.GEOLOCATION_FORMAT.LNG_LAT:
      {
        var lng = loc.lng,
          lat = loc.lat;
        return getLatLngDisplayString(lat, lng);
      }
    case column.GEOLOCATION_FORMAT.COUNTRY_REGION:
      {
        var country_region = loc.country_region;
        return country_region || '';
      }
    case column.GEOLOCATION_FORMAT.PROVINCE:
      {
        var province = loc.province;
        return province || '';
      }
    case column.GEOLOCATION_FORMAT.PROVINCE_CITY:
      {
        var _province = loc.province,
          city = loc.city;
        return "".concat(_province || '').concat(hyphen).concat(city || '').trim();
      }
    case column.GEOLOCATION_FORMAT.PROVINCE_CITY_DISTRICT:
      {
        var _province2 = loc.province,
          _city = loc.city,
          district = loc.district;
        return "".concat(_province2 || '').concat(hyphen).concat(_city || '').concat(hyphen).concat(district || '').trim();
      }
    case column.GEOLOCATION_FORMAT.MAP_SELECTION:
      {
        var address = loc.address,
          title = loc.title;
        return "".concat(address || '').concat(hyphen).concat(title || '').trim();
      }
    default:
      {
        // default as 'geolocation'
        var _province3 = loc.province,
          _city2 = loc.city,
          _district = loc.district,
          detail = loc.detail;
        if (!_province3 && !_city2 && !_district && !detail) return '';
        return "".concat(_province3 || '').concat(hyphen).concat(_city2 || '').concat(hyphen).concat(_district || '').concat(hyphen).concat(detail || '').trim();
      }
  }
};

/**
 * Get geolocation by granularity
 * @param {object} geolocation e.g. { province, ... }
 * @param {string} granularity
 * @returns geolocation string
 */
var getGeolocationByGranularity = function getGeolocationByGranularity(geolocation, granularity) {
  if (!geolocation) return '';
  var province = geolocation.province,
    city = geolocation.city,
    district = geolocation.district,
    country_region = geolocation.country_region;
  switch (granularity) {
    case group.GROUP_GEOLOCATION_GRANULARITY.CITY:
      {
        return city || '';
      }
    case group.GROUP_GEOLOCATION_GRANULARITY.DISTRICT:
      {
        return district || '';
      }
    case group.GROUP_GEOLOCATION_GRANULARITY.COUNTRY:
      {
        return country_region || '';
      }
    default:
      {
        return province || '';
      }
  }
};

exports.convertToDMS = convertToDMS;
exports.getGeolocationByGranularity = getGeolocationByGranularity;
exports.getGeolocationDisplayString = getGeolocationDisplayString;
exports.getLatLngDisplayString = getLatLngDisplayString;