text: import { Session } from 'meteor/session';
  import { Tracker } from 'meteor/tracker';
  import { settings } from '../../settings';
  import { getAvatarURL } from './getAvatarURL';
  
  export const getUserAvatarURL = function(username) {
  	const externalSource = (settings.get('Accounts_AvatarExternalProviderUrl') || '').trim().replace(/\/$/, '');
  	if (externalSource !== '') {
  		return externalSource.replace('{username}', username);
  	}
  	if (username == null) {
  		return;
  	}
  	const key = `avatar_random_${ username }`;
  	const cache = Tracker.nonreactive(() => Session && Session.get(key)); // there is no Session on server
  
  	return getAvatarURL({ username, cache });
  };
  