echolocate/dist/bundle.js

Get an Echo device's physical location and timezone using the Alexa API and Geo-location.

'use strict';

function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }

var config = _interopDefault(require('config'));
var bluebird = require('bluebird');
var dynasty = _interopDefault(require('dynasty'));
var Geocoder = _interopDefault(require('node-geocoder'));
var timezoner = _interopDefault(require('timezoner'));
var axios = _interopDefault(require('axios'));

var babelHelpers = {};




var asyncGenerator = function () {
  function AwaitValue(value) {
    this.value = value;
  }

  function AsyncGenerator(gen) {
    var front, back;

    function send(key, arg) {
      return new Promise(function (resolve, reject) {
        var request = {
          key: key,
          arg: arg,
          resolve: resolve,
          reject: reject,
          next: null
        };

        if (back) {
          back = back.next = request;
        } else {
          front = back = request;
          resume(key, arg);
        }
      });
    }

    function resume(key, arg) {
      try {
        var result = gen[key](arg);
        var value = result.value;

        if (value instanceof AwaitValue) {
          Promise.resolve(value.value).then(function (arg) {
            resume("next", arg);
          }, function (arg) {
            resume("throw", arg);
          });
        } else {
          settle(result.done ? "return" : "normal", result.value);
        }
      } catch (err) {
        settle("throw", err);
      }
    }

    function settle(type, value) {
      switch (type) {
        case "return":
          front.resolve({
            value: value,
            done: true
          });
          break;

        case "throw":
          front.reject(value);
          break;

        default:
          front.resolve({
            value: value,
            done: false
          });
          break;
      }

      front = front.next;

      if (front) {
        resume(front.key, front.arg);
      } else {
        back = null;
      }
    }

    this._invoke = send;

    if (typeof gen.return !== "function") {
      this.return = undefined;
    }
  }

  if (typeof Symbol === "function" && Symbol.asyncIterator) {
    AsyncGenerator.prototype[Symbol.asyncIterator] = function () {
      return this;
    };
  }

  AsyncGenerator.prototype.next = function (arg) {
    return this._invoke("next", arg);
  };

  AsyncGenerator.prototype.throw = function (arg) {
    return this._invoke("throw", arg);
  };

  AsyncGenerator.prototype.return = function (arg) {
    return this._invoke("return", arg);
  };

  return {
    wrap: function (fn) {
      return function () {
        return new AsyncGenerator(fn.apply(this, arguments));
      };
    },
    await: function (value) {
      return new AwaitValue(value);
    }
  };
}();



var asyncToGenerator = function (fn) {
  return function () {
    var gen = fn.apply(this, arguments);
    return new Promise(function (resolve, reject) {
      function step(key, arg) {
        try {
          var info = gen[key](arg);
          var value = info.value;
        } catch (error) {
          reject(error);
          return;
        }

        if (info.done) {
          resolve(value);
        } else {
          return Promise.resolve(value).then(function (value) {
            step("next", value);
          }, function (err) {
            step("throw", err);
          });
        }
      }

      return step("next");
    });
  };
};















































babelHelpers;

const PERMISSIONS = {
  FULL_ADDRESS: 'address',
  COUNTRY_POSTAL: 'countryAndPostalCode'
};

const ADDRESS_API = '{apiEndpoint}/v1/devices/{deviceId}/settings/address/{perm}';

var getDeviceAddress = (() => {
  var _ref = asyncToGenerator(function* (deviceId, {
    apiEndpoint = 'https://api.amazonalexa.com',
    consentToken,
    permissions = PERMISSIONS.COUNTRY_POSTAL
  }) {
    const url = ADDRESS_API.replace(/{apiEndpoint}/, apiEndpoint).replace(/{deviceId}/, deviceId).replace(/{perm}/, permissions === PERMISSIONS.COUNTRY_POSTAL ? PERMISSIONS.COUNTRY_POSTAL : '');

    const { data } = yield axios.get(url, { headers: { Authorization: `Bearer ${consentToken}` } });
    return data;
  });

  function getDeviceAddress(_x, _x2) {
    return _ref.apply(this, arguments);
  }

  return getDeviceAddress;
})();

/**
 * Uses the device's id and a consentToken to perform geo-lookups and build up a location object
 * for where the device is located.
 *
 * @param {String} deviceId
 * @param {DeviceLocationQueryOptions} options
 * @returns {DeviceLocation}
 */
let buildDeviceLocation = (() => {
  var _ref2 = asyncToGenerator(function* (deviceId, options) {
    const address = yield getDeviceAddress(deviceId, options);
    const [geo] = yield geocoder.geocode(address.postalCode);
    const timezone = yield bluebird.promisify(timezoner.getTimeZone)(geo.latitude, geo.longitude);

    return Object.assign({
      deviceId,
      latitude: geo.latitude,
      longitude: geo.longitude,
      formattedAddress: geo.formattedAddress,
      timezone
    }, address);
  });

  return function buildDeviceLocation(_x3, _x4) {
    return _ref2.apply(this, arguments);
  };
})();

let set = (() => {
  var _ref3 = asyncToGenerator(function* (device) {
    if (config.has('echolcate.dbTableName')) {
      yield devices.insert(device);
    }

    return device;
  });

  return function set(_x5) {
    return _ref3.apply(this, arguments);
  };
})();

let get = (() => {
  var _ref4 = asyncToGenerator(function* (deviceId) {
    if (config.has('echolcate.dbTableName')) {
      return yield devices.find(deviceId);
    }

    return null;
  });

  return function get(_x6) {
    return _ref4.apply(this, arguments);
  };
})();

/**
 * @typedef {Object} DeviceLocationQueryOptions
 * @property {Object} apiEndpoint -- API endpoint to get the location from. This will be provided
 *     in the Alexa Skill request object. Defaults to https://api.amazonalexa.com
 * @property {String} consentToken -- consentToken from the ASK request session
 * @property {Boolean} [skipDB] -- Whether it should skip looking for the deviceId in the database
 */

/**
 * @typedef {Object} DeviceLocation
 * @property {String} deviceId
 * @property {String} countryCode
 * @property {String} postalCode
 * @property {String} city
 * @property {String} country
 * @property {String} formattedAddress
 * @property {String} latitude
 * @property {String} longitude
 * @property {GMapsTimeZone} timezone
 */

/**
 * @typedef {Object} GMapsTimeZone
 * @property {Number} dstOffset
 * @property {Number} rawOffset
 * @property {String} status
 * @property {String} timeZoneId
 * @property {String} timeZoneName
 */

const geocoder = Geocoder({ provider: 'google' });

const dynoClient = dynasty(config.get('echolocate.awsConfig'));
const devices = dynoClient.table(config.get('echolocate.dbTableName'));

/**
 * Get an Echo device's physical location and timezone using the Alexa API and Geo-location.
 *
 * @param {String} deviceId -- deviceId of the requesting device
 * @param {DeviceLocationQueryOptions} options
 * @returns {Promise<Object>}
 */
var index = (() => {
  var _ref = asyncToGenerator(function* (deviceId, options) {
    return !options.skipDB && (yield get(deviceId)) || (yield set(buildDeviceLocation(deviceId, options)));
  });

  function getDeviceLocation(_x, _x2) {
    return _ref.apply(this, arguments);
  }

  return getDeviceLocation;
})();

module.exports = index;