@cerebral/useragent/lib/getFeatures.js

Adds useragent specs to your cerebral state model

'use strict';

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

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

exports.default = getFeatures;
require('feature.js');

function getFeatures(options) {
  var feature = options.feature;
  var uaFeatures = window.feature;

  var featureMap = {};

  Object.keys(uaFeatures).filter(isTestResult).filter(isEnabled).reduce(function (result, featureName) {
    result[featureName] = uaFeatures[featureName];
    return result;
  }, featureMap);

  if (feature === Object(feature)) {
    Object.keys(feature).filter(isCustomTest).reduce(function (result, featureName) {
      result[featureName] = feature[featureName].call();
      return result;
    }, featureMap);
  }

  function isEnabled(featureName) {
    if ((typeof feature === 'undefined' ? 'undefined' : _typeof(feature)) === 'object') {
      return feature[featureName] === true;
    }

    return feature;
  }

  function isCustomTest(featureName) {
    return typeof feature[featureName] === 'function';
  }

  function isTestResult(featureName) {
    return typeof uaFeatures[featureName] === 'boolean';
  }

  return featureMap;
}
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