'use strict';

export const isAuthorized = (authcode) => {
   if (JSON.parse(sessionStorage.getItem('user'))) {
      const { resources } = JSON.parse(sessionStorage.getItem('user'));
      return resources.includes(authcode);
   } else {
      return false;
   }
}

export const checkAudioVideo = (constraintsData) => {
   if (navigator.mediaDevices === undefined) {
      navigator.mediaDevices = {};
   }
   if (navigator.mediaDevices.getUserMedia === undefined) {
      navigator.mediaDevices.getUserMedia = function (constraints) {
         // 首先，如果有getUserMedia的话，就获得它
         var getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;
         // 一些浏览器根本没实现它 - 那么就返回一个error到promise的reject来保持一个统一的接口
         if (!getUserMedia) {
            return Promise.reject({ code: 404 });
         }

         // 否则，为老的navigator.getUserMedia方法包裹一个Promise

         return new Promise(function (resolve, reject) {
            getUserMedia.call(navigator, constraints, resolve, reject);
         });
      }
   }
   return navigator.mediaDevices.getUserMedia(constraintsData)
}