AngularJS Piwik Service

piwik.js

"use strict";
angular.module("MyApp.services"/*, []*/)
.constant('piwikUrl', 'http://0.0.0.0/piwik')
.constant('piwikAuthToken', '0a0a00a0aa0a00000a00aaa0000a0a0')
.constant('piwikSiteUrl', 'http://myapp.mydomain.com')
.constant('piwikSiteName', 'MyApp')
.service('piwik', ['$q', '$http', 'piwikUrl', 'piwikAuthToken', 'piwikSiteUrl', 'piwikSiteName',
	function($q, $http, piwikUrl, piwikAuthToken, piwikSiteUrl, piwikSiteName) {
		function fetchSiteIds (){
			var deferred = $q.defer();
			$http({
					method: 'POST', 
					url: piwikUrl + '/index.php',
					responseType: 'json',
					params: {
						module: 'API',
						format: 'JSON',
						method: 'SitesManager.getSitesIdFromSiteUrl',
						url: piwikSiteUrl,
						token_auth: piwikAuthToken
					}
			}).
		  success(function(data, status, headers, config) {
		  	deferred.resolve(data.map(function(o){return o.idsite;}));
		  }).
		  error(function(data, status, headers, config) {
		  	deferred.reject('Error fetching Piwik Site IDs: ' + status);
		  });
		  return deferred.promise;	
		}
		function createSite (){
			var deferred = $q.defer();
			$http({
					method: 'POST', 
					url: piwikUrl + '/index.php',
					responseType: 'json',
					params: {
						token_auth: piwikAuthToken,
						module: 'API',
						format: 'JSON',
						method: 'SitesManager.addSite',
						siteName: piwikSiteName,
						urls: [piwikSiteUrl]
					}
			}).
		  success(function(data, status, headers, config) {
		  	deferred.resolve([data.value]);
		  }).
		  error(function(data, status, headers, config) {
		  	deferred.reject('Error adding Piwik Site: ' + status);
		  });
		  return deferred.promise;	
		}
		function getSiteId() {
	  	return fetchSiteIds()
	  	.then(function(siteIds){
		  	if (siteIds.length === 0) {
		  		return createSite();
		  	} else {
		  		return siteIds;
		  	}
	  	});
		}
	  return {
	  	fetchSiteIds: fetchSiteIds,
	  	createSite: createSite,
	  	getSiteId: getSiteId
	  }
	}]);