Firebase check verification email propblem

I am building Ionic app and using firebase. I have a problem when I want to check verification email when user login.

I tested login with Email that not verified yet and alert “Email not verified please check your inbox” show normally but it’s login and go to state “tab.dashB” too.

I think it’s because “//Check if user already logged in”. so I try to make a condition but it didn’t work.

can someone teach me how to slove this problem please? (T_T)

ps.other error checking run normally.

this is code

.controller('loginCtrl', function($scope,$ionicHistory,TheAlert,$state) {

var condition = true;

$scope.loginEmail = function(formCheck,userLogin) {

console.log(userLogin);
 if(formCheck.$valid) {  // Check if the form data is valid or not
  // Start showing the progress
  TheAlert.showLoading();


  firebase.auth().signInWithEmailAndPassword(userLogin.email,userLogin.password).then(function() {
      var user = firebase.auth().currentUser;
      if(user.emailVerified) { //check for verification email

        console.log("email verified");
        $ionicHistory.nextViewOptions({
              historyRoot: true
            });

            TheAlert.hideLoading();
            $state.go('tab.dashB', {}, {location: "replace"});



        }else{
         condition = false;
         TheAlert.hideLoading();
         TheAlert.showAlert("Email not verified please check your inbox","","warning")
             return false;

            } // end check verification email


    },function(error) {

          var errorCode = error.code;
          var errorMessage = error.message;
          console.log(errorCode);
          if (errorCode === 'auth/invalid-email') {
              TheAlert.showAlert("Invalid Email","","error");
              TheAlert.hideLoading();
             return false;
          }else if (errorCode === 'auth/wrong-password') {
              TheAlert.showAlert("Password is incorrect","","error");
              TheAlert.hideLoading();
             return false;
          }else if (errorCode === 'auth/user-not-found') {
              TheAlert.showAlert("Account\ndoes not exist","","error");
              TheAlert.hideLoading();
             return false;
          }else if (errorCode === 'auth/too-many-requests') {
              TheAlert.showAlert("Too many failed login attempts please try after some delay","","error");
              TheAlert.hideLoading();
             return false;
          }else if (errorCode === 'auth/network-request-failed') {
              TheAlert.showAlert("Request timed out please try again","","error");
              TheAlert.hideLoading();
             return false;
          }else if (errorCode === 'auth/user-disabled') {
              TheAlert.showAlert("This account has been disabled by Admin","","error");
              TheAlert.hideLoading();
             return false;
          }else {
              TheAlert.showAlert(errorMessage,"","error");
              TheAlert.hideLoading();
             return false;
          }
    }
);

  }else{TheAlert.showAlert("Please fill all details","","warning");
  return false;}
};

if(condition == true){
//Check if user already logged in
firebase.auth().onAuthStateChanged(function(user) {
 if (user) {
  
$ionicHistory.nextViewOptions({
  historyRoot: true 
  });    

$state.go('tab.dashB', {}, {location: "replace"}); 

  }
});
};