From 39a65e1ca6cfc5d6b0bd4a317ff312bcfa2f2fad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment?= <clement.reniers@etu.univ-lyon1.fr>
Date: Wed, 12 Mar 2025 22:17:17 +0100
Subject: [PATCH] colored message (with evil regex)

---
 .../main/java/client/ClientGuiController.java | 46 +++++++++++++++++--
 1 file changed, 41 insertions(+), 5 deletions(-)

diff --git a/ChatApp/app/src/main/java/client/ClientGuiController.java b/ChatApp/app/src/main/java/client/ClientGuiController.java
index 7154678..6bd72f2 100644
--- a/ChatApp/app/src/main/java/client/ClientGuiController.java
+++ b/ChatApp/app/src/main/java/client/ClientGuiController.java
@@ -16,6 +16,8 @@ import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;
 import java.util.List;
 import java.util.Optional;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 public class ClientGuiController implements ClientListener {
 
@@ -92,15 +94,14 @@ public void initialize() throws SocketException {
             String timeString = formatter.format(time);
             Text chatterText = new Text(chatter + ": ");
             chatterText.setStyle("-fx-fill: black; -fx-font-weight: bold;");
-            Text messageText = new Text(content);
-            messageText.setStyle("-fx-fill: black;");
+            TextFlow messageText = formatMessage(chatter, content);
             TextFlow wholeMessage = new TextFlow(chatterText, messageText);
             Text timeText = new Text("  " + timeString);
             timeText.setStyle("-fx-fill: gray; -fx-font-size: 10px;");
             HBox messageContainer = new HBox(5, wholeMessage, timeText);
             messageContainer.setStyle("-fx-background-color: lightblue; -fx-padding: 8; -fx-background-radius: 5;");
             messageContainer.setMaxWidth(Double.MAX_VALUE);
-            HBox.setHgrow(messageText, javafx.scene.layout.Priority.ALWAYS);
+            HBox.setHgrow(messageText, Priority.ALWAYS);
             chatList.getChildren().add(messageContainer);
         });
     }
@@ -121,8 +122,6 @@ public void initialize() throws SocketException {
     }
 
     private void createChatEnv(String roomName) {
-//        <TextField fx:id="messageInput" promptText="Type a message..." styleClass="message-input"/>
-//                    <Button fx:id="sendButton" text="Send" styleClass="send-button"/>
         Platform.runLater(() -> {
             chatList.getChildren().clear();
             chatInput.getChildren().clear();
@@ -154,6 +153,43 @@ public void initialize() throws SocketException {
         });
     }
 
+    private TextFlow formatMessage(String chatter, String content) {
+        TextFlow textFlow = new TextFlow();
+        Pattern pattern = Pattern.compile("&([rbgyn])([^&]*)");
+        Matcher matcher = pattern.matcher(content);
+        int lastIndex = 0;
+
+        while (matcher.find()) {
+            if (matcher.start() > lastIndex) {
+                textFlow.getChildren().add(new Text(content.substring(lastIndex, matcher.start())));
+            }
+
+            String colorCode = matcher.group(1);
+            String textPart = matcher.group(2);
+
+            String color = switch (colorCode) {
+                case "r" -> "red";
+                case "b" -> "blue";
+                case "g" -> "green";
+                case "y" -> "gray";
+                default -> "black";
+            };
+
+            Text coloredText = new Text(textPart);
+            coloredText.setStyle("-fx-fill: " + color + ";");
+            textFlow.getChildren().add(coloredText);
+
+            lastIndex = matcher.end();
+        }
+
+        // Add the remaining text (works if there's no color code at all)
+        if (lastIndex < content.length()) {
+            textFlow.getChildren().add(new Text(content.substring(lastIndex)));
+        }
+
+        return textFlow;
+    }
+
     @Override
     public void handleServerResponse(ServerResponsePacket.Response response) {