 extension AppDelegate: SessionDelegate {
     
     func session(session: Session, didProposeVisitToURL URL: NSURL, withAction action: Action) {
+        
+        // TODO: figure out how to call only one function at a time
+        
+        visitDiscover(URL)
         visitFood(URL)
+        
     }
     
     func session(session: Session, didFailRequestForVisitable visitable: Visitable, withError error: NSError) {
         let alert = UIAlertController(title: "Error", message: error.localizedDescription, preferredStyle: .Alert)
         alert.addAction(UIAlertAction(title: "OK", style: .Default, handler: nil))
+        
+        // TODO: figure out how to only return one controller at a time
+        
+        discoverNavigationController.presentViewController(alert, animated: true, completion: nil)
         foodNavigationController.presentViewController(alert, animated: true, completion: nil)
     }
 }

        return true
    }
    
    // old function
    func startApplication() {
        session.delegate = self
        visitFood(NSURL(string: "http://curry.aca.uw.edu:8001/h/food/")!)
        visitDiscover(NSURL(string: "http://curry.aca.uw.edu:8001/h/")!)
    }
    
    func visitFood(URL: NSURL) {
        let visitableViewController = VisitableViewController(URL: URL)
        foodNavigationController.pushViewController(visitableViewController, animated: true)
        session.visit(visitableViewController)
    }
    
    func visitDiscover(URL: NSURL) {
        let visitableViewController = VisitableViewController(URL: URL)
        discoverNavigationController.pushViewController(visitableViewController, animated: true)
        session.visit(visitableViewController)
    }
    
}

    
    var window: UIWindow?
    
    //var navigationController = UINavigationController()
    //var session = Session()
    
    // Set up the first View Controller
    var discoverNavigationController = UINavigationController()
