func handleLoginFb(){



        let facebookLogin = FBSDKLoginManager()

        print("LoggedIn")

        facebookLogin.logInWithReadPermissions(["public_profile","email","user_friends"], fromViewController: self, handler: {(facebookResults,facebookError) -> Void in

            if facebookError != nil {

                print("facebook error login")
                return
            }else if facebookResults.isCancelled{

                print("facebook login is canceled")

            }else {

            print("you are i in")

                let credential = FIRFacebookAuthProvider.credentialWithAccessToken(FBSDKAccessToken.currentAccessToken().tokenString)
                FIRAuth.auth()?.signInWithCredential(credential){ (user, error) in

                    print("user loged in firebase")
                }

                self.dismissViewControllerAnimated(true, completion: nil)

                }




        } );


    }



    func anonymousLogin(){

        FIRAuth.auth()?.signInAnonymouslyWithCompletion() { (user, error) in

            if (error != nil){
                print(error)
                return

            }

            print("user Loged anonymously with " + user!.uid )
            self.dismissViewControllerAnimated(true, completion: nil)


        }



    }



    func handleLogin(){

        guard let email = emailTextField.text, password = passwordTextField.text
            else {
                print("Form is not valid")
                return
        }
        FIRAuth.auth()?.signInWithEmail(email, password: password, completion: {(user, error ) in

            if (error != nil){
                print(error)
                return
            }


            self.dismissViewControllerAnimated(true, completion: nil)


        })

    }




    func handleRegister(){

        guard let email = emailTextField.text, name = nameTextField.text , password = passwordTextField.text
            else {
        print("Form is not valid")
        return
        }

        FIRAuth.auth()?.createUserWithEmail(email, password:password, completion:{(user: FIRUser?, error) in

            if(error != nil){
                print(error)
                return

            }

            //User successfuly authentified
            print("User successfuly authentified ")

            guard let uid = user?.uid else {
                return
            }

            let ref = FIRDatabase.database().referenceFromURL("https://e-commerce-cpa-57e7d.firebaseio.com/")
            let usersReference = ref.child("users").child(uid)

            let values = ["name": name , "email": email ]

            usersReference.updateChildValues(values,withCompletionBlock: {(err, ref) in

                if (err != nil){
                    print("error occured")

                print(err)
                return
                }
            print("User succesfuly registred")


            })




        })
        self.dismissViewControllerAnimated(true, completion: nil)


    }