From 0eb99933e391f30b43fa218d5d899c47ee7bc18c Mon Sep 17 00:00:00 2001
From: KochTobi <kochtobi@users.noreply.github.com>
Date: Thu, 18 Sep 2025 16:29:27 +0200
Subject: [PATCH] Reroute logged in users to projects route when visiting login
 again

---
 .../qbic/datamanager/views/login/LoginLayout.java  | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/user-interface/src/main/java/life/qbic/datamanager/views/login/LoginLayout.java b/user-interface/src/main/java/life/qbic/datamanager/views/login/LoginLayout.java
index 7d4207cc5..fde65d8c2 100644
--- a/user-interface/src/main/java/life/qbic/datamanager/views/login/LoginLayout.java
+++ b/user-interface/src/main/java/life/qbic/datamanager/views/login/LoginLayout.java
@@ -15,6 +15,8 @@
 import com.vaadin.flow.component.login.AbstractLogin.LoginEvent;
 import com.vaadin.flow.component.orderedlayout.FlexComponent;
 import com.vaadin.flow.component.orderedlayout.VerticalLayout;
+import com.vaadin.flow.router.BeforeEnterEvent;
+import com.vaadin.flow.router.BeforeEnterListener;
 import com.vaadin.flow.router.BeforeEvent;
 import com.vaadin.flow.router.HasUrlParameter;
 import com.vaadin.flow.router.OptionalParameter;
@@ -38,6 +40,7 @@
 import life.qbic.logging.api.Logger;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.core.context.SecurityContextHolder;
 
 /**
  * <b>Defines the layout and look of the login view. </b>
@@ -49,7 +52,8 @@
 @CssImport("./styles/views/login/login-view.css")
 @AnonymousAllowed
 @UIScope
-public class LoginLayout extends VerticalLayout implements HasUrlParameter<String> {
+public class LoginLayout extends VerticalLayout implements HasUrlParameter<String>,
+    BeforeEnterListener {
 
   private static final Logger log = logger(LoginLayout.class);
   private final String emailConfirmationParameter;
@@ -231,6 +235,14 @@ public void onEmailConfirmationFailure(String reason) {
     showError("Email confirmation failed", reason);
   }
 
+  @Override
+  public void beforeEnter(BeforeEnterEvent event) {
+    var auth = SecurityContextHolder.getContext().getAuthentication();
+    if (auth != null && auth.isAuthenticated()) {
+      event.forwardTo(AppRoutes.ProjectRoutes.PROJECTS);
+    }
+  }
+
   private static class LoginCard extends Span {
 
     private final Span text = new Span();