'use strict';

(function () {

	function FeedService($http, $window) {
		var token = localStorage.getItem('access_token');
		var proto = ($window.location.protocol == 'https:' ? 'wss' : 'ws');
		var route = [proto, "://", $window.location.host, '/api/stream/user?access_token=', token].join('');

		var wsCallback = undefined;
		var ws = new WebSocket(route);
		ws.onmessage = function(event) {
			var data = angular.fromJson(event.data);
			if (wsCallback != undefined) {
				wsCallback(data);
			}
		};

		this.subscribe = function(callback) {
			wsCallback = callback;
		};

		this.unsubscribe = function() {
			wsCallback = undefined;
		};
	}

	angular
		.module('drone')
		.service('feed', FeedService);
})();