app.factory('AuthenticationService',
    ['Base64', '$http', '$cookieStore', '$rootScope', '$timeout',
    function (Base64, $http, $cookieStore, $rootScope, $timeout) {
        var service = {};

        service.Login = function (username, password, callback) {

            /* Dummy authentication for testing, uses $timeout to simulate api call
             ----------------------------------------------*/
            // $timeout(function(){
            //     var response = { success: username === 'test' && password === 'test' };
            //     if(!response.success) {
            //         response.message = 'Username or password is incorrect';
            //     }
            //     callback(response);
            // }, 1000);


            /* Use this for real authentication
             ----------------------------------------------*/
            $http.post('/api/authenticate', { username: username, password: password })
                .success(function (response) {
                    callback(response);
                });

        };
 
        service.SetCredentials = function (username, password) {
            var authdata = Base64.encode(username + ':' + password);
 
            $rootScope.globals = {
                currentUser: {
                    username: username,
                    authdata: authdata
                }
            };
 
            $http.defaults.headers.common['Authorization'] = 'Basic ' + authdata; // jshint ignore:line
            $cookieStore.put('globals', $rootScope.globals);
        };
 
        service.ClearCredentials = function () {
            $rootScope.globals = {};
            $cookieStore.remove('globals');
            $http.defaults.headers.common.Authorization = 'Basic ';
        };
 
        return service;
    }]);