func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.

        var storyboardName: String = ""
         userAuthorizedCheck(after: { (succesful) in
            if (succesful == true){
                storyboardName = "Main"

            }else{
                print(false)
                storyboardName = "Authorization"

            }
        })

        let storyboard = UIStoryboard(name: storyboardName, bundle: Bundle.main)
        window = UIWindow(frame: UIScreen.main.bounds)
        window!.makeKeyAndVisible()
        window!.rootViewController = storyboard.instantiateInitialViewController()

        return true
    }

func userAuthorizedCheck(after completion: @escaping (Bool) -> Void) {
        let username : String = UserDefaults.standard.string(forKey: "username") ?? ""
        let password : String = UserDefaults.standard.string(forKey: "password") ?? ""
        let tokenSaved : String = UserDefaults.standard.string(forKey: "token") ?? ""
        var tempToken:String = ""


        //
        if(!username.isEmpty && !password.isEmpty)
        {
            let json: [String: String] = ["username": username, "password": password]


            login(json: json, after: {(status, token, code) in
                print(login)
                if(code == 200 && !token.isEmpty){
                    UserDefaults.standard.setValue(token, forKey: "token");
                    UserDefaults.standard.synchronize();
                    tempToken = token
                    completion(true)

                }
                else{
                    tempToken = ""
                    completion(false)

                }
            })
        }
        else
        {
            completion(false)
        }
        completion(false)

    }