var CloudController = {
  getInfo: function() {
    console.log('get infomation');
    return new Promise(function(reslove, reject) {
      setTimeout(function() {
        reslove({
          authorization_endpoint: ''
        });
      }, 0);
    });
  }
}

var UsersUAA = {
  login: function(username, password) {
    console.log('login with ' + username);
    return new Promise(function(reslove, reject) {
      setTimeout(function() {
        reslove('');
      }, 0);
    });
  },
  setEndPoint: function() { }
}

var Apps = {
  getApps: function() {
    console.log('get applications');
    return new Promise(function(reslove, reject) {
      setTimeout(function() {
        reslove('got apps');
      }, 0);
    });
  },
  setToken: function() {}
};

var username = 'tiven',
    password = 'password';

function* getCloudApps() {
  console.log('start get cloud apps')
  var result = yield CloudController.getInfo();
  UsersUAA.setEndPoint(result.authorization_endpoint);
  result = yield UsersUAA.login(username, password);
  Apps.setToken(result);
  yield Apps.getApps();
}

var cloudApps = getCloudApps();

cloudApps.next().value.then(function(result) {
  cloudApps.next(result).value.then(function(result) {
    cloudApps.next(result).value.then(function(result) {
      console.log(result);
    });
  });
});