implement Email as username

core/user_signup_session.go

@@ -17,11 +17,11 @@ type UserSignSession struct {
 	SetIdxInterface     IdxInterface
 	ConfirmIdxInterface IdxInterface
 	SetKeySelection     KeySelection
-	Username            Username
+	UserEmail           Email
 	Expire              int
 }
 
-func NewSignupSession(username Username, kp KeypadDimension, customerId CustomerId, svgInterface SvgIdInterface) (*UserSignSession, error) {
+func NewSignupSession(userEmail Email, kp KeypadDimension, customerId CustomerId, svgInterface SvgIdInterface) (*UserSignSession, error) {
 	loginInterface, err := NewUserInterface(&kp, svgInterface)
 	if err != nil {
 		return nil, err
@@ -37,7 +37,7 @@ func NewSignupSession(username Username, kp KeypadDimension, customerId Customer
 		SetIdxInterface:     signupInterface.IdxInterface,
 		ConfirmIdxInterface: nil,
 		SetKeySelection:     nil,
-		Username:            username,
+		UserEmail:           userEmail,
 		Kp:                  kp,
 	}
 
@@ -65,7 +65,7 @@ func (s *UserSignSession) DeducePasscode(confirmKeyEntry KeySelection) ([]int, e
 		return nil, errors.New("signup session set key entry is nil")
 	}
 
-	if s.Username == "" {
+	if s.UserEmail == "" {
 		return nil, errors.New("signup session username is nil")
 	}