From 3483b35067300ace21a14bbf7c749dce799f7e22 Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Tue, 4 Nov 2025 13:56:31 +0100
Subject: [PATCH 01/16] Initial Commit

---
 src/main/java/module-info.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/main/java/module-info.java b/src/main/java/module-info.java
index 71574a27..6e2c2933 100644
--- a/src/main/java/module-info.java
+++ b/src/main/java/module-info.java
@@ -4,4 +4,5 @@
 
     opens com.example to javafx.fxml;
     exports com.example;
+    
 }
\ No newline at end of file

From 1002eac8e8ec8b5e6f57fc789c5d209a3605f494 Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sat, 15 Nov 2025 22:21:07 +0100
Subject: [PATCH 02/16] Setup base mVC structure with App, ChatController and
 ChatView.fxml. Also had to fix big issue with running JavaFX on old JDK
 version.

---
 pom.xml                                       | 50 +++++++++++--------
 src/main/java/com/example/chat/App.java       | 24 +++++++++
 .../java/com/example/chat/ChatController.java | 32 ++++++++++++
 src/main/java/com/example/chat/ChatModel.java | 21 ++++++++
 src/main/java/module-info.java                |  8 +--
 .../resources/com/example/chat/ChatView.fxml  | 28 +++++++++++
 .../com/example/chat/model/ChatModelTest.java | 23 +++++++++
 7 files changed, 163 insertions(+), 23 deletions(-)
 create mode 100644 src/main/java/com/example/chat/App.java
 create mode 100644 src/main/java/com/example/chat/ChatController.java
 create mode 100644 src/main/java/com/example/chat/ChatModel.java
 create mode 100644 src/main/resources/com/example/chat/ChatView.fxml
 create mode 100644 src/test/resources/java/com/example/chat/model/ChatModelTest.java

diff --git a/pom.xml b/pom.xml
index c40f667e..b2950541 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
+                             http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>com.example</groupId>
@@ -9,14 +10,28 @@
     <version>1.0-SNAPSHOT</version>
 
     <properties>
-        <maven.compiler.release>25</maven.compiler.release>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.release>25</maven.compiler.release>
+        <javafx.version>25</javafx.version>
+        <javafx.platform>win</javafx.platform>
         <junit.jupiter.version>6.0.0</junit.jupiter.version>
         <assertj.core.version>3.27.6</assertj.core.version>
         <mockito.version>5.20.0</mockito.version>
-        <javafx.version>25</javafx.version>
     </properties>
+
     <dependencies>
+        <dependency>
+            <groupId>org.openjfx</groupId>
+            <artifactId>javafx-controls</artifactId>
+            <version>${javafx.version}</version>
+            <classifier>${javafx.platform}</classifier>
+        </dependency>
+        <dependency>
+            <groupId>org.openjfx</groupId>
+            <artifactId>javafx-fxml</artifactId>
+            <version>${javafx.version}</version>
+            <classifier>${javafx.platform}</classifier>
+        </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter</artifactId>
@@ -35,17 +50,8 @@
             <version>${mockito.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.openjfx</groupId>
-            <artifactId>javafx-controls</artifactId>
-            <version>${javafx.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.openjfx</groupId>
-            <artifactId>javafx-fxml</artifactId>
-            <version>${javafx.version}</version>
-        </dependency>
     </dependencies>
+
     <build>
         <plugins>
             <plugin>
@@ -54,15 +60,19 @@
                 <version>0.0.8</version>
                 <configuration>
                     <mainClass>com.example.HelloFX</mainClass>
-                    <options>
-                    <option>--enable-native-access=javafx.graphics</option>
-                    </options>
-                    <launcher>javafx</launcher>
-                    <stripDebug>true</stripDebug>
-                    <noHeaderFiles>true</noHeaderFiles>
-                    <noManPages>true</noManPages>
+                    <platform>${javafx.platform}</platform>
+                </configuration>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.13.0</version>
+                <configuration>
+                    <release>${maven.compiler.release}</release>
                 </configuration>
             </plugin>
         </plugins>
     </build>
 </project>
+
diff --git a/src/main/java/com/example/chat/App.java b/src/main/java/com/example/chat/App.java
new file mode 100644
index 00000000..58206015
--- /dev/null
+++ b/src/main/java/com/example/chat/App.java
@@ -0,0 +1,24 @@
+package com.example.chat;
+
+import javafx.application.Application;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+
+public class App extends Application {
+
+    @Override
+    public void start(Stage stage) throws Exception {
+        FXMLLoader loader = new FXMLLoader(getClass().getResource("ChatView.fxml"));
+        Scene scene = new Scene(loader.load());
+        stage.setTitle("JavaFX Chat");
+        stage.setScene(scene);
+        stage.show();
+    }
+
+    public static void main(String[] args) {
+        launch(args);
+    }
+}
+
+
diff --git a/src/main/java/com/example/chat/ChatController.java b/src/main/java/com/example/chat/ChatController.java
new file mode 100644
index 00000000..0f574e1d
--- /dev/null
+++ b/src/main/java/com/example/chat/ChatController.java
@@ -0,0 +1,32 @@
+package com.example.chat;
+
+import javafx.fxml.FXML;
+import javafx.scene.control.Button;
+import javafx.scene.control.ListView;
+import javafx.scene.control.TextField;
+
+public class ChatController {
+
+    @FXML
+    private TextField messageInput;
+
+    @FXML
+    private Button sendButton;
+
+    @FXML
+    private ListView<String> messageList;
+
+    private ChatModel model;
+
+    public void initialize() {
+        model = new ChatModel(messageList);
+    }
+
+    @FXML
+    private void onSendClicked() {
+        String text = messageInput.getText();
+        model.sendMessage(text);
+        messageInput.clear();
+    }
+}
+
diff --git a/src/main/java/com/example/chat/ChatModel.java b/src/main/java/com/example/chat/ChatModel.java
new file mode 100644
index 00000000..f37d6e92
--- /dev/null
+++ b/src/main/java/com/example/chat/ChatModel.java
@@ -0,0 +1,21 @@
+package com.example.chat;
+
+import javafx.application.Platform;
+import javafx.scene.control.ListView;
+
+public class ChatModel {
+
+    private final ListView<String> messageList;
+
+    public ChatModel(ListView<String> messageList) {
+        this.messageList = messageList;
+    }
+
+    public void sendMessage(String text) {
+        if (text == null || text.isBlank()) return;
+
+        // For now: only add to UI (network comes in later commits)
+        Platform.runLater(() -> messageList.getItems().add("You: " + text));
+    }
+}
+
diff --git a/src/main/java/module-info.java b/src/main/java/module-info.java
index 6e2c2933..153f3760 100644
--- a/src/main/java/module-info.java
+++ b/src/main/java/module-info.java
@@ -2,7 +2,9 @@
     requires javafx.controls;
     requires javafx.fxml;
 
-    opens com.example to javafx.fxml;
-    exports com.example;
+    opens com.example.chat to javafx.fxml;
+    exports com.example.chat;
     
-}
\ No newline at end of file
+    opens com.example to javafx.graphics, javafx.fxml;
+    exports com.example;
+}
diff --git a/src/main/resources/com/example/chat/ChatView.fxml b/src/main/resources/com/example/chat/ChatView.fxml
new file mode 100644
index 00000000..e8a3246b
--- /dev/null
+++ b/src/main/resources/com/example/chat/ChatView.fxml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.scene.layout.BorderPane?>
+<?import javafx.scene.control.*?>
+<?import javafx.geometry.Insets?>
+
+<BorderPane xmlns="http://javafx.com/javafx/17"
+            xmlns:fx="http://javafx.com/fxml/1"
+            fx:controller="com.example.chat.ChatController">
+
+    <center>
+        <ListView fx:id="messageList"/>
+    </center>
+
+    <bottom>
+        <BorderPane padding="10">
+            <left>
+                <TextField fx:id="messageInput" promptText="Enter message..."/>
+            </left>
+            <right>
+                <Button fx:id="sendButton"
+                        text="Send"
+                        onAction="#onSendClicked"/>
+            </right>
+        </BorderPane>
+    </bottom>
+
+</BorderPane>
diff --git a/src/test/resources/java/com/example/chat/model/ChatModelTest.java b/src/test/resources/java/com/example/chat/model/ChatModelTest.java
new file mode 100644
index 00000000..82148858
--- /dev/null
+++ b/src/test/resources/java/com/example/chat/model/ChatModelTest.java
@@ -0,0 +1,23 @@
+package java.com.example.chat.model;
+
+package com.example.chat.model;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class ChatModelTest {
+    @Test
+    void buildPublishJson_shouldContainTopicAndMessage() throws Exception {
+        ChatModel m = new ChatModel();
+        String json = m.buildPublishJson("hejtopic", "hej världen");
+        assertTrue(json.contains("hejtopic"));
+        assertTrue(json.contains("hej världen"));
+    }
+
+    @Test
+    void addMessage_addsToList() {
+        ChatModel m = new ChatModel();
+        m.addMessage(new ChatMessage("Anna", "Hej"));
+        assertEquals(1, m.getMessages().size());
+    }
+}

From e711db1428c29caf57a29d42b6af81d5a5dd6e69 Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sat, 15 Nov 2025 22:24:35 +0100
Subject: [PATCH 03/16] Commit 1: Setup basic MVC structure and fixed issues
 with runnign JavaFX on old JDK version

---
 .gitignore | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 6ac465db..b4346b20 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,7 @@
 target/
-/.idea/
+.idea/
+.vscode/
+*.class
+*.log
+.env
+

From a2826b6f143c15e80fa6413260c813eb5f7e4ae7 Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sat, 15 Nov 2025 22:33:12 +0100
Subject: [PATCH 04/16] Implement basic MVC: ChatModel, ChatController, and
 ChatView UI setup

---
 .../java/com/example/chat/ChatController.java | 18 +++++++----
 src/main/java/com/example/chat/ChatModel.java | 21 ++++++------
 .../resources/com/example/chat/ChatView.fxml  | 32 +++++--------------
 3 files changed, 30 insertions(+), 41 deletions(-)

diff --git a/src/main/java/com/example/chat/ChatController.java b/src/main/java/com/example/chat/ChatController.java
index 0f574e1d..6f478f06 100644
--- a/src/main/java/com/example/chat/ChatController.java
+++ b/src/main/java/com/example/chat/ChatController.java
@@ -8,7 +8,7 @@
 public class ChatController {
 
     @FXML
-    private TextField messageInput;
+    private TextField inputField;
 
     @FXML
     private Button sendButton;
@@ -19,14 +19,18 @@ public class ChatController {
     private ChatModel model;
 
     public void initialize() {
-        model = new ChatModel(messageList);
+        model = new ChatModel();
+        messageList.setItems(model.getMessages());
+
+        sendButton.setOnAction(e -> sendMessage());
+        inputField.setOnAction(e -> sendMessage());
     }
 
-    @FXML
-    private void onSendClicked() {
-        String text = messageInput.getText();
-        model.sendMessage(text);
-        messageInput.clear();
+    private void sendMessage() {
+        String text = inputField.getText();
+        model.addMessage(text);
+        inputField.clear();
     }
 }
 
+
diff --git a/src/main/java/com/example/chat/ChatModel.java b/src/main/java/com/example/chat/ChatModel.java
index f37d6e92..a6070915 100644
--- a/src/main/java/com/example/chat/ChatModel.java
+++ b/src/main/java/com/example/chat/ChatModel.java
@@ -1,21 +1,22 @@
 package com.example.chat;
 
-import javafx.application.Platform;
-import javafx.scene.control.ListView;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
 
 public class ChatModel {
 
-    private final ListView<String> messageList;
+    private final ObservableList<String> messages = FXCollections.observableArrayList();
 
-    public ChatModel(ListView<String> messageList) {
-        this.messageList = messageList;
+    public ObservableList<String> getMessages() {
+        return messages;
     }
 
-    public void sendMessage(String text) {
-        if (text == null || text.isBlank()) return;
-
-        // For now: only add to UI (network comes in later commits)
-        Platform.runLater(() -> messageList.getItems().add("You: " + text));
+    public void addMessage(String message) {
+        if (message != null && !message.isBlank()) {
+            messages.add(message);
+        }
     }
+
 }
 
+
diff --git a/src/main/resources/com/example/chat/ChatView.fxml b/src/main/resources/com/example/chat/ChatView.fxml
index e8a3246b..97883f0d 100644
--- a/src/main/resources/com/example/chat/ChatView.fxml
+++ b/src/main/resources/com/example/chat/ChatView.fxml
@@ -1,28 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
-<?import javafx.scene.layout.BorderPane?>
 <?import javafx.scene.control.*?>
-<?import javafx.geometry.Insets?>
-
-<BorderPane xmlns="http://javafx.com/javafx/17"
-            xmlns:fx="http://javafx.com/fxml/1"
-            fx:controller="com.example.chat.ChatController">
-
-    <center>
-        <ListView fx:id="messageList"/>
-    </center>
+<?import javafx.scene.layout.*?>
 
-    <bottom>
-        <BorderPane padding="10">
-            <left>
-                <TextField fx:id="messageInput" promptText="Enter message..."/>
-            </left>
-            <right>
-                <Button fx:id="sendButton"
-                        text="Send"
-                        onAction="#onSendClicked"/>
-            </right>
-        </BorderPane>
-    </bottom>
+<VBox spacing="10" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.example.chat.ChatController">
+    <ListView fx:id="messageList" prefHeight="400" />
+    <HBox spacing="10">
+        <TextField fx:id="inputField" HBox.hgrow="ALWAYS"/>
+        <Button fx:id="sendButton" text="Send"/>
+    </HBox>
+</VBox>
 
-</BorderPane>

From 22213b0db687c7ffd90a2288c68dc1eb4b36feef Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sat, 15 Nov 2025 22:38:25 +0100
Subject: [PATCH 05/16] Add ntfy backend integration for sending and receiving
 messages

---
 src/main/java/com/example/chat/ChatModel.java | 54 ++++++++++++++++++-
 1 file changed, 53 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/example/chat/ChatModel.java b/src/main/java/com/example/chat/ChatModel.java
index a6070915..099e2669 100644
--- a/src/main/java/com/example/chat/ChatModel.java
+++ b/src/main/java/com/example/chat/ChatModel.java
@@ -1,11 +1,30 @@
 package com.example.chat;
 
+import javafx.application.Platform;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.nio.charset.StandardCharsets;
+
 public class ChatModel {
 
     private final ObservableList<String> messages = FXCollections.observableArrayList();
+    private final HttpClient client = HttpClient.newHttpClient();
+    private final String ntfyUrl;
+
+    public ChatModel() {
+        // Hämta backend-url från env variable
+        String url = System.getenv("NTFY_URL");
+        if (url == null || url.isBlank()) {
+            url = "http://localhost:8080/topic/test"; // fallback
+        }
+        ntfyUrl = url;
+        startListening();
+    }
 
     public ObservableList<String> getMessages() {
         return messages;
@@ -13,10 +32,43 @@ public ObservableList<String> getMessages() {
 
     public void addMessage(String message) {
         if (message != null && !message.isBlank()) {
-            messages.add(message);
+            messages.add("Me: " + message);
+            sendToBackend(message);
+        }
+    }
+
+    private void sendToBackend(String message) {
+        try {
+            HttpRequest request = HttpRequest.newBuilder()
+                    .uri(URI.create(ntfyUrl))
+                    .POST(HttpRequest.BodyPublishers.ofString(message, StandardCharsets.UTF_8))
+                    .header("Content-Type", "text/plain")
+                    .build();
+
+            client.sendAsync(request, HttpResponse.BodyHandlers.discarding());
+        } catch (Exception e) {
+            e.printStackTrace();
         }
     }
 
+    private void startListening() {
+        new Thread(() -> {
+            try {
+                HttpRequest request = HttpRequest.newBuilder()
+                        .uri(URI.create(ntfyUrl + "/events"))
+                        .build();
+
+                client.send(request, HttpResponse.BodyHandlers.ofLines())
+                        .body().forEach(line -> Platform.runLater(() -> {
+                            if (!line.isBlank()) messages.add("Other: " + line);
+                        }));
+
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }).start();
+    }
 }
 
 
+

From f9f5a01124c17e12c16634350b41dd8570f9a370 Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sat, 15 Nov 2025 22:41:20 +0100
Subject: [PATCH 06/16] Commit 3: Add ntfy backend integration to ChatModel

---
 src/main/java/com/example/chat/ChatModel.java | 25 +++++++++++--------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/src/main/java/com/example/chat/ChatModel.java b/src/main/java/com/example/chat/ChatModel.java
index 099e2669..38251cdb 100644
--- a/src/main/java/com/example/chat/ChatModel.java
+++ b/src/main/java/com/example/chat/ChatModel.java
@@ -17,12 +17,14 @@ public class ChatModel {
     private final String ntfyUrl;
 
     public ChatModel() {
-        // Hämta backend-url från env variable
+        // Hämta backend-url från environment variable
         String url = System.getenv("NTFY_URL");
         if (url == null || url.isBlank()) {
             url = "http://localhost:8080/topic/test"; // fallback
         }
         ntfyUrl = url;
+
+        // Starta lyssning på inkommande meddelanden
         startListening();
     }
 
@@ -31,10 +33,13 @@ public ObservableList<String> getMessages() {
     }
 
     public void addMessage(String message) {
-        if (message != null && !message.isBlank()) {
-            messages.add("Me: " + message);
-            sendToBackend(message);
-        }
+        if (message == null || message.isBlank()) return;
+
+        // Lägg till i ListView
+        messages.add("Me: " + message);
+
+        // Skicka till ntfy backend i bakgrunden
+        new Thread(() -> sendToBackend(message)).start();
     }
 
     private void sendToBackend(String message) {
@@ -59,8 +64,11 @@ private void startListening() {
                         .build();
 
                 client.send(request, HttpResponse.BodyHandlers.ofLines())
-                        .body().forEach(line -> Platform.runLater(() -> {
-                            if (!line.isBlank()) messages.add("Other: " + line);
+                        .body()
+                        .forEach(line -> Platform.runLater(() -> {
+                            if (!line.isBlank()) {
+                                messages.add("Other: " + line);
+                            }
                         }));
 
             } catch (Exception e) {
@@ -69,6 +77,3 @@ private void startListening() {
         }).start();
     }
 }
-
-
-

From cd7a5ad456fcc2449d94ec82f38463d76aac74ef Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sat, 15 Nov 2025 22:44:08 +0100
Subject: [PATCH 07/16]  Improve receiving messages in ChatModel with error
 handling

---
 src/main/java/com/example/chat/ChatModel.java | 24 ++++++++-----------
 1 file changed, 10 insertions(+), 14 deletions(-)

diff --git a/src/main/java/com/example/chat/ChatModel.java b/src/main/java/com/example/chat/ChatModel.java
index 38251cdb..44a1c12f 100644
--- a/src/main/java/com/example/chat/ChatModel.java
+++ b/src/main/java/com/example/chat/ChatModel.java
@@ -17,14 +17,11 @@ public class ChatModel {
     private final String ntfyUrl;
 
     public ChatModel() {
-        // Hämta backend-url från environment variable
         String url = System.getenv("NTFY_URL");
         if (url == null || url.isBlank()) {
-            url = "http://localhost:8080/topic/test"; // fallback
+            url = "http://localhost:8080/topic/test";
         }
         ntfyUrl = url;
-
-        // Starta lyssning på inkommande meddelanden
         startListening();
     }
 
@@ -33,13 +30,10 @@ public ObservableList<String> getMessages() {
     }
 
     public void addMessage(String message) {
-        if (message == null || message.isBlank()) return;
-
-        // Lägg till i ListView
-        messages.add("Me: " + message);
-
-        // Skicka till ntfy backend i bakgrunden
-        new Thread(() -> sendToBackend(message)).start();
+        if (message != null && !message.isBlank()) {
+            messages.add("Me: " + message);
+            sendToBackend(message);
+        }
     }
 
     private void sendToBackend(String message) {
@@ -65,15 +59,17 @@ private void startListening() {
 
                 client.send(request, HttpResponse.BodyHandlers.ofLines())
                         .body()
-                        .forEach(line -> Platform.runLater(() -> {
+                        .forEach(line -> {
                             if (!line.isBlank()) {
-                                messages.add("Other: " + line);
+                                Platform.runLater(() -> messages.add("Other: " + line));
                             }
-                        }));
+                        });
 
             } catch (Exception e) {
+                Platform.runLater(() -> messages.add("Error connecting to backend: " + e.getMessage()));
                 e.printStackTrace();
             }
         }).start();
     }
 }
+

From 77c2714058907e8d8d668d68af06a8b5cf490722 Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sat, 15 Nov 2025 23:13:35 +0100
Subject: [PATCH 08/16]  Chat UI works, can send messages locally

---
 pom.xml                                       | 10 ++++-----
 src/main/java/com/example/chat/App.java       |  6 ++---
 .../java/com/example/chat/ChatController.java | 11 ++++++++--
 src/main/java/com/example/chat/ChatModel.java | 22 +++++++++----------
 src/main/java/module-info.java                |  5 ++---
 .../resources/com/example/chat/ChatView.fxml  | 17 ++++++++++----
 6 files changed, 43 insertions(+), 28 deletions(-)

diff --git a/pom.xml b/pom.xml
index b2950541..1709a7b0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -55,15 +55,15 @@
     <build>
         <plugins>
             <plugin>
-                <groupId>org.openjfx</groupId>
+            <groupId>org.openjfx</groupId>
                 <artifactId>javafx-maven-plugin</artifactId>
-                <version>0.0.8</version>
-                <configuration>
-                    <mainClass>com.example.HelloFX</mainClass>
-                    <platform>${javafx.platform}</platform>
+                    <version>0.0.8</version>
+                        <configuration>
+                    <mainClass>com.example.chat.App</mainClass>
                 </configuration>
             </plugin>
 
+
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
diff --git a/src/main/java/com/example/chat/App.java b/src/main/java/com/example/chat/App.java
index 58206015..1f062c77 100644
--- a/src/main/java/com/example/chat/App.java
+++ b/src/main/java/com/example/chat/App.java
@@ -9,15 +9,15 @@ public class App extends Application {
 
     @Override
     public void start(Stage stage) throws Exception {
-        FXMLLoader loader = new FXMLLoader(getClass().getResource("ChatView.fxml"));
+        FXMLLoader loader = new FXMLLoader(getClass().getResource("/com/example/chat/ChatView.fxml"));
         Scene scene = new Scene(loader.load());
-        stage.setTitle("JavaFX Chat");
+        stage.setTitle("JavaFX Chat Client");
         stage.setScene(scene);
         stage.show();
     }
 
     public static void main(String[] args) {
-        launch(args);
+        launch();
     }
 }
 
diff --git a/src/main/java/com/example/chat/ChatController.java b/src/main/java/com/example/chat/ChatController.java
index 6f478f06..42f63e35 100644
--- a/src/main/java/com/example/chat/ChatController.java
+++ b/src/main/java/com/example/chat/ChatController.java
@@ -19,18 +19,25 @@ public class ChatController {
     private ChatModel model;
 
     public void initialize() {
+        // Skapa modellen
         model = new ChatModel();
+
+        // Koppla ListView till modellens ObservableList
         messageList.setItems(model.getMessages());
 
+        // Sätt upp knapp och enter-tangent
         sendButton.setOnAction(e -> sendMessage());
         inputField.setOnAction(e -> sendMessage());
     }
 
     private void sendMessage() {
         String text = inputField.getText();
-        model.addMessage(text);
-        inputField.clear();
+        if (text != null && !text.isBlank()) {
+            model.addMessage(text);
+            inputField.clear();
+        }
     }
 }
 
 
+
diff --git a/src/main/java/com/example/chat/ChatModel.java b/src/main/java/com/example/chat/ChatModel.java
index 44a1c12f..9f9dfbc0 100644
--- a/src/main/java/com/example/chat/ChatModel.java
+++ b/src/main/java/com/example/chat/ChatModel.java
@@ -19,7 +19,7 @@ public class ChatModel {
     public ChatModel() {
         String url = System.getenv("NTFY_URL");
         if (url == null || url.isBlank()) {
-            url = "http://localhost:8080/topic/test";
+            url = "http://localhost:8080/topic/test"; // fallback
         }
         ntfyUrl = url;
         startListening();
@@ -44,9 +44,13 @@ private void sendToBackend(String message) {
                     .header("Content-Type", "text/plain")
                     .build();
 
-            client.sendAsync(request, HttpResponse.BodyHandlers.discarding());
+            client.sendAsync(request, HttpResponse.BodyHandlers.discarding())
+                    .exceptionally(e -> {
+                        Platform.runLater(() -> messages.add("Error sending message: " + e.getMessage()));
+                        return null;
+                    });
         } catch (Exception e) {
-            e.printStackTrace();
+            messages.add("Error creating request: " + e.getMessage());
         }
     }
 
@@ -59,17 +63,13 @@ private void startListening() {
 
                 client.send(request, HttpResponse.BodyHandlers.ofLines())
                         .body()
-                        .forEach(line -> {
-                            if (!line.isBlank()) {
-                                Platform.runLater(() -> messages.add("Other: " + line));
-                            }
-                        });
+                        .forEach(line -> Platform.runLater(() -> {
+                            if (!line.isBlank()) messages.add("Other: " + line);
+                        }));
 
             } catch (Exception e) {
-                Platform.runLater(() -> messages.add("Error connecting to backend: " + e.getMessage()));
-                e.printStackTrace();
+                Platform.runLater(() -> messages.add("Error receiving messages: " + e.getMessage()));
             }
         }).start();
     }
 }
-
diff --git a/src/main/java/module-info.java b/src/main/java/module-info.java
index 153f3760..e6761d11 100644
--- a/src/main/java/module-info.java
+++ b/src/main/java/module-info.java
@@ -1,10 +1,9 @@
 module hellofx {
     requires javafx.controls;
     requires javafx.fxml;
+    requires java.net.http; // tillagd
 
     opens com.example.chat to javafx.fxml;
     exports com.example.chat;
-    
-    opens com.example to javafx.graphics, javafx.fxml;
-    exports com.example;
 }
+
diff --git a/src/main/resources/com/example/chat/ChatView.fxml b/src/main/resources/com/example/chat/ChatView.fxml
index 97883f0d..df4efd4d 100644
--- a/src/main/resources/com/example/chat/ChatView.fxml
+++ b/src/main/resources/com/example/chat/ChatView.fxml
@@ -1,12 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?>
+
 <?import javafx.scene.control.*?>
 <?import javafx.scene.layout.*?>
+<?import javafx.geometry.Insets?>
+
+<VBox xmlns="http://javafx.com/javafx/25" xmlns:fx="http://javafx.com/fxml/1"
+      fx:controller="com.example.chat.ChatController"
+      spacing="10">
 
-<VBox spacing="10" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.example.chat.ChatController">
-    <ListView fx:id="messageList" prefHeight="400" />
+    <padding>
+        <Insets top="10" right="10" bottom="10" left="10"/>
+    </padding>
+
+    <ListView fx:id="messageList" prefHeight="400"/>
+    
     <HBox spacing="10">
-        <TextField fx:id="inputField" HBox.hgrow="ALWAYS"/>
+        <TextField fx:id="inputField" HBox.hgrow="ALWAYS" promptText="Type your message..."/>
         <Button fx:id="sendButton" text="Send"/>
     </HBox>
 </VBox>
-

From 45b99d9a9d0970660bf087b269e506cb4e48355f Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sat, 15 Nov 2025 23:49:24 +0100
Subject: [PATCH 09/16]  Fix receiving messages from ntfy with error handling

---
 src/main/java/com/example/chat/ChatModel.java | 31 ++++++++++++-------
 1 file changed, 20 insertions(+), 11 deletions(-)

diff --git a/src/main/java/com/example/chat/ChatModel.java b/src/main/java/com/example/chat/ChatModel.java
index 9f9dfbc0..0028a1e6 100644
--- a/src/main/java/com/example/chat/ChatModel.java
+++ b/src/main/java/com/example/chat/ChatModel.java
@@ -17,6 +17,7 @@ public class ChatModel {
     private final String ntfyUrl;
 
     public ChatModel() {
+        // Hämta backend-url från env variable
         String url = System.getenv("NTFY_URL");
         if (url == null || url.isBlank()) {
             url = "http://localhost:8080/topic/test"; // fallback
@@ -45,28 +46,36 @@ private void sendToBackend(String message) {
                     .build();
 
             client.sendAsync(request, HttpResponse.BodyHandlers.discarding())
-                    .exceptionally(e -> {
-                        Platform.runLater(() -> messages.add("Error sending message: " + e.getMessage()));
+                    .exceptionally(ex -> {
+                        Platform.runLater(() -> messages.add("Error sending message: " + ex.getMessage()));
                         return null;
                     });
         } catch (Exception e) {
-            messages.add("Error creating request: " + e.getMessage());
+            messages.add("Error sending message: " + e.getMessage());
         }
     }
 
     private void startListening() {
         new Thread(() -> {
             try {
-                HttpRequest request = HttpRequest.newBuilder()
-                        .uri(URI.create(ntfyUrl + "/events"))
-                        .build();
+                while (true) {
+                    HttpRequest request = HttpRequest.newBuilder()
+                            .uri(URI.create(ntfyUrl + "/events"))
+                            .GET()
+                            .build();
 
-                client.send(request, HttpResponse.BodyHandlers.ofLines())
-                        .body()
-                        .forEach(line -> Platform.runLater(() -> {
-                            if (!line.isBlank()) messages.add("Other: " + line);
-                        }));
+                    client.send(request, HttpResponse.BodyHandlers.ofLines())
+                            .body()
+                            .forEach(line -> {
+                                if (!line.isBlank() && !line.contains("data:")) return; // ignore non-data lines
+                                String content = line.replaceFirst("data:", "").trim();
+                                if (!content.isEmpty()) {
+                                    Platform.runLater(() -> messages.add("Other: " + content));
+                                }
+                            });
 
+                    Thread.sleep(1000); // poll every second
+                }
             } catch (Exception e) {
                 Platform.runLater(() -> messages.add("Error receiving messages: " + e.getMessage()));
             }

From c48ed72984c19d0b2c8cf4db0a55c3e81062326d Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sat, 15 Nov 2025 23:54:08 +0100
Subject: [PATCH 10/16]  Add unit tests for ChatModel

---
 .../com/example/chat/model/ChatModelTest.java | 34 ++++++++++++-------
 1 file changed, 22 insertions(+), 12 deletions(-)

diff --git a/src/test/resources/java/com/example/chat/model/ChatModelTest.java b/src/test/resources/java/com/example/chat/model/ChatModelTest.java
index 82148858..bfba15e4 100644
--- a/src/test/resources/java/com/example/chat/model/ChatModelTest.java
+++ b/src/test/resources/java/com/example/chat/model/ChatModelTest.java
@@ -1,23 +1,33 @@
-package java.com.example.chat.model;
-
 package com.example.chat.model;
 
+import com.example.chat.ChatModel;
+import javafx.collections.ObservableList;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
+
 import static org.junit.jupiter.api.Assertions.*;
 
-public class ChatModelTest {
+class ChatModelTest {
+
+    private ChatModel model;
+
+    @BeforeEach
+    void setUp() {
+        model = new ChatModel();
+    }
+
     @Test
-    void buildPublishJson_shouldContainTopicAndMessage() throws Exception {
-        ChatModel m = new ChatModel();
-        String json = m.buildPublishJson("hejtopic", "hej världen");
-        assertTrue(json.contains("hejtopic"));
-        assertTrue(json.contains("hej världen"));
+    void testAddMessage() {
+        model.addMessage("Hello");
+        ObservableList<String> messages = model.getMessages();
+        assertEquals(1, messages.size());
+        assertTrue(messages.get(0).contains("Me: Hello"));
     }
 
     @Test
-    void addMessage_addsToList() {
-        ChatModel m = new ChatModel();
-        m.addMessage(new ChatMessage("Anna", "Hej"));
-        assertEquals(1, m.getMessages().size());
+    void testAddEmptyMessage() {
+        model.addMessage("");
+        ObservableList<String> messages = model.getMessages();
+        assertEquals(0, messages.size());
     }
 }

From 8f02f1c342b22bdf37d24ffa397938336bbb5b97 Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sat, 15 Nov 2025 23:59:34 +0100
Subject: [PATCH 11/16]  Enable receiving messages in ChatModel from ntfy

---
 src/main/java/com/example/chat/ChatModel.java | 43 +++++++++----------
 1 file changed, 21 insertions(+), 22 deletions(-)

diff --git a/src/main/java/com/example/chat/ChatModel.java b/src/main/java/com/example/chat/ChatModel.java
index 0028a1e6..9a19cf21 100644
--- a/src/main/java/com/example/chat/ChatModel.java
+++ b/src/main/java/com/example/chat/ChatModel.java
@@ -56,29 +56,28 @@ private void sendToBackend(String message) {
     }
 
     private void startListening() {
-        new Thread(() -> {
-            try {
-                while (true) {
-                    HttpRequest request = HttpRequest.newBuilder()
-                            .uri(URI.create(ntfyUrl + "/events"))
-                            .GET()
-                            .build();
+    new Thread(() -> {
+        try {
+            while (true) {
+                HttpRequest request = HttpRequest.newBuilder()
+                        .uri(URI.create(ntfyUrl + "/events"))
+                        .build();
 
-                    client.send(request, HttpResponse.BodyHandlers.ofLines())
-                            .body()
-                            .forEach(line -> {
-                                if (!line.isBlank() && !line.contains("data:")) return; // ignore non-data lines
-                                String content = line.replaceFirst("data:", "").trim();
-                                if (!content.isEmpty()) {
-                                    Platform.runLater(() -> messages.add("Other: " + content));
-                                }
-                            });
+                client.send(request, HttpResponse.BodyHandlers.ofLines())
+                        .body()
+                        .forEach(line -> {
+                            if (!line.isBlank()) {
+                                Platform.runLater(() -> messages.add("Other: " + line));
+                            }
+                        });
 
-                    Thread.sleep(1000); // poll every second
-                }
-            } catch (Exception e) {
-                Platform.runLater(() -> messages.add("Error receiving messages: " + e.getMessage()));
+                // Vänta lite innan nästa poll
+                Thread.sleep(1000);
             }
-        }).start();
-    }
+        } catch (Exception e) {
+            Platform.runLater(() -> messages.add("Error receiving messages: " + e.getMessage()));
+        }
+    }).start();
+}
+
 }

From dff3fe246a751dac3b0f6f3b5f03abe54dd84ea2 Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sun, 16 Nov 2025 00:05:34 +0100
Subject: [PATCH 12/16]  Add threaded sendToBackend with proper error handling

---
 src/main/java/com/example/chat/ChatModel.java | 73 ++++++++++---------
 1 file changed, 38 insertions(+), 35 deletions(-)

diff --git a/src/main/java/com/example/chat/ChatModel.java b/src/main/java/com/example/chat/ChatModel.java
index 9a19cf21..9cb192c3 100644
--- a/src/main/java/com/example/chat/ChatModel.java
+++ b/src/main/java/com/example/chat/ChatModel.java
@@ -38,46 +38,49 @@ public void addMessage(String message) {
     }
 
     private void sendToBackend(String message) {
-        try {
-            HttpRequest request = HttpRequest.newBuilder()
-                    .uri(URI.create(ntfyUrl))
-                    .POST(HttpRequest.BodyPublishers.ofString(message, StandardCharsets.UTF_8))
-                    .header("Content-Type", "text/plain")
-                    .build();
+        new Thread(() -> {
+            try {
+                HttpRequest request = HttpRequest.newBuilder()
+                        .uri(URI.create(ntfyUrl))
+                        .POST(HttpRequest.BodyPublishers.ofString(message, StandardCharsets.UTF_8))
+                        .header("Content-Type", "text/plain")
+                        .build();
 
-            client.sendAsync(request, HttpResponse.BodyHandlers.discarding())
-                    .exceptionally(ex -> {
-                        Platform.runLater(() -> messages.add("Error sending message: " + ex.getMessage()));
-                        return null;
-                    });
-        } catch (Exception e) {
-            messages.add("Error sending message: " + e.getMessage());
-        }
+                HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
+
+                if (response.statusCode() >= 400) {
+                    Platform.runLater(() -> messages.add("Error sending message: " + response.statusCode()));
+                }
+            } catch (Exception e) {
+                Platform.runLater(() -> messages.add("Error sending message: " + e.getMessage()));
+            }
+        }).start();
     }
 
     private void startListening() {
-    new Thread(() -> {
-        try {
-            while (true) {
-                HttpRequest request = HttpRequest.newBuilder()
-                        .uri(URI.create(ntfyUrl + "/events"))
-                        .build();
+        new Thread(() -> {
+            try {
+                while (true) {
+                    HttpRequest request = HttpRequest.newBuilder()
+                            .uri(URI.create(ntfyUrl + "/events"))
+                            .GET()
+                            .build();
 
-                client.send(request, HttpResponse.BodyHandlers.ofLines())
-                        .body()
-                        .forEach(line -> {
-                            if (!line.isBlank()) {
-                                Platform.runLater(() -> messages.add("Other: " + line));
-                            }
-                        });
+                    client.send(request, HttpResponse.BodyHandlers.ofLines())
+                            .body()
+                            .forEach(line -> {
+                                if (!line.isBlank() && !line.contains("data:")) return; // ignore non-data lines
+                                String content = line.replaceFirst("data:", "").trim();
+                                if (!content.isEmpty()) {
+                                    Platform.runLater(() -> messages.add("Other: " + content));
+                                }
+                            });
 
-                // Vänta lite innan nästa poll
-                Thread.sleep(1000);
+                    Thread.sleep(1000); // poll every second
+                }
+            } catch (Exception e) {
+                Platform.runLater(() -> messages.add("Error receiving messages: " + e.getMessage()));
             }
-        } catch (Exception e) {
-            Platform.runLater(() -> messages.add("Error receiving messages: " + e.getMessage()));
-        }
-    }).start();
-}
-
+        }).start();
+    }
 }

From a41b14be1d40269561b30c3225cddf4b5d338c21 Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sun, 16 Nov 2025 00:08:12 +0100
Subject: [PATCH 13/16] Improve ChatModel with proper threading and error
 handling for ntfy backend

---
 src/main/java/com/example/chat/ChatModel.java | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/main/java/com/example/chat/ChatModel.java b/src/main/java/com/example/chat/ChatModel.java
index 9cb192c3..f6dbb4f8 100644
--- a/src/main/java/com/example/chat/ChatModel.java
+++ b/src/main/java/com/example/chat/ChatModel.java
@@ -69,10 +69,11 @@ private void startListening() {
                     client.send(request, HttpResponse.BodyHandlers.ofLines())
                             .body()
                             .forEach(line -> {
-                                if (!line.isBlank() && !line.contains("data:")) return; // ignore non-data lines
-                                String content = line.replaceFirst("data:", "").trim();
-                                if (!content.isEmpty()) {
-                                    Platform.runLater(() -> messages.add("Other: " + content));
+                                if (!line.isBlank() && line.startsWith("data:")) {
+                                    String content = line.replaceFirst("data:", "").trim();
+                                    if (!content.isEmpty()) {
+                                        Platform.runLater(() -> messages.add("Other: " + content));
+                                    }
                                 }
                             });
 

From c78f3bc227c354c8268a9162ed3a61f6a7aee9e5 Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sun, 16 Nov 2025 00:09:30 +0100
Subject: [PATCH 14/16] Add unit tests for ChatModel: addMessage and empty
 message handling

---
 .../java/com/example/chat/model/ChatModelTest.java | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/test/resources/java/com/example/chat/model/ChatModelTest.java b/src/test/resources/java/com/example/chat/model/ChatModelTest.java
index bfba15e4..9a8c72f9 100644
--- a/src/test/resources/java/com/example/chat/model/ChatModelTest.java
+++ b/src/test/resources/java/com/example/chat/model/ChatModelTest.java
@@ -17,17 +17,21 @@ void setUp() {
     }
 
     @Test
-    void testAddMessage() {
-        model.addMessage("Hello");
+    void testAddMessageAddsToList() {
         ObservableList<String> messages = model.getMessages();
+        assertEquals(0, messages.size());
+
+        model.addMessage("Hello");
         assertEquals(1, messages.size());
-        assertTrue(messages.get(0).contains("Me: Hello"));
+        assertEquals("Me: Hello", messages.get(0));
     }
 
     @Test
-    void testAddEmptyMessage() {
-        model.addMessage("");
+    void testAddMessageIgnoresEmpty() {
         ObservableList<String> messages = model.getMessages();
+        model.addMessage("");
+        model.addMessage("   ");
         assertEquals(0, messages.size());
     }
 }
+

From 4862eadf38393f95411e87e335c6e2d0af90c1d2 Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sun, 16 Nov 2025 00:18:47 +0100
Subject: [PATCH 15/16] Fix ChatModel to handle backend messages properly and
 avoid null errors

---
 src/main/java/com/example/chat/ChatModel.java | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/main/java/com/example/chat/ChatModel.java b/src/main/java/com/example/chat/ChatModel.java
index f6dbb4f8..f402a0ff 100644
--- a/src/main/java/com/example/chat/ChatModel.java
+++ b/src/main/java/com/example/chat/ChatModel.java
@@ -17,7 +17,6 @@ public class ChatModel {
     private final String ntfyUrl;
 
     public ChatModel() {
-        // Hämta backend-url från env variable
         String url = System.getenv("NTFY_URL");
         if (url == null || url.isBlank()) {
             url = "http://localhost:8080/topic/test"; // fallback
@@ -47,7 +46,6 @@ private void sendToBackend(String message) {
                         .build();
 
                 HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
-
                 if (response.statusCode() >= 400) {
                     Platform.runLater(() -> messages.add("Error sending message: " + response.statusCode()));
                 }
@@ -63,14 +61,13 @@ private void startListening() {
                 while (true) {
                     HttpRequest request = HttpRequest.newBuilder()
                             .uri(URI.create(ntfyUrl + "/events"))
-                            .GET()
                             .build();
 
                     client.send(request, HttpResponse.BodyHandlers.ofLines())
                             .body()
                             .forEach(line -> {
-                                if (!line.isBlank() && line.startsWith("data:")) {
-                                    String content = line.replaceFirst("data:", "").trim();
+                                if (!line.isBlank()) {
+                                    String content = line.contains("data:") ? line.replaceFirst("data:", "").trim() : line;
                                     if (!content.isEmpty()) {
                                         Platform.runLater(() -> messages.add("Other: " + content));
                                     }

From 812714beb0bdcd6454723d76996960e68ed8439e Mon Sep 17 00:00:00 2001
From: Nathali Houshmand <nath.houshmand@gmail.com>
Date: Sun, 16 Nov 2025 00:30:27 +0100
Subject: [PATCH 16/16] Final cleanup before submission

---
 src/main/java/com/example/chat/ChatController.java | 6 +++---
 src/main/java/com/example/chat/ChatModel.java      | 6 ++++--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/main/java/com/example/chat/ChatController.java b/src/main/java/com/example/chat/ChatController.java
index 42f63e35..fe0b26bf 100644
--- a/src/main/java/com/example/chat/ChatController.java
+++ b/src/main/java/com/example/chat/ChatController.java
@@ -19,13 +19,13 @@ public class ChatController {
     private ChatModel model;
 
     public void initialize() {
-        // Skapa modellen
+        
         model = new ChatModel();
 
-        // Koppla ListView till modellens ObservableList
+        
         messageList.setItems(model.getMessages());
 
-        // Sätt upp knapp och enter-tangent
+        //Sätt upp knapp och enter-tangent
         sendButton.setOnAction(e -> sendMessage());
         inputField.setOnAction(e -> sendMessage());
     }
diff --git a/src/main/java/com/example/chat/ChatModel.java b/src/main/java/com/example/chat/ChatModel.java
index f402a0ff..86ba20f2 100644
--- a/src/main/java/com/example/chat/ChatModel.java
+++ b/src/main/java/com/example/chat/ChatModel.java
@@ -66,7 +66,8 @@ private void startListening() {
                     client.send(request, HttpResponse.BodyHandlers.ofLines())
                             .body()
                             .forEach(line -> {
-                                if (!line.isBlank()) {
+                                if (line != null && !line.isBlank()) {
+                                    // Ta bort "data:" om det finns
                                     String content = line.contains("data:") ? line.replaceFirst("data:", "").trim() : line;
                                     if (!content.isEmpty()) {
                                         Platform.runLater(() -> messages.add("Other: " + content));
@@ -74,7 +75,7 @@ private void startListening() {
                                 }
                             });
 
-                    Thread.sleep(1000); // poll every second
+                    Thread.sleep(1000); // poll varje sekund
                 }
             } catch (Exception e) {
                 Platform.runLater(() -> messages.add("Error receiving messages: " + e.getMessage()));
@@ -82,3 +83,4 @@ private void startListening() {
         }).start();
     }
 }
+