Update from Git Manager GUI

src/main/java/de/nexuslobby/utils/UpdateChecker.java

@@ -0,0 +1,42 @@
+package de.nexuslobby.utils;
+
+import de.nexuslobby.NexusLobby;
+import org.bukkit.Bukkit;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.util.Scanner;
+import java.util.function.Consumer;
+
+public class UpdateChecker {
+
+    private final NexusLobby plugin;
+    // URL zur Gitea API für das neueste Release
+    private final String url = "https://git.viper.ipv64.net/api/v1/repos/M_Viper/NexusLobby/releases/latest";
+
+    public UpdateChecker(NexusLobby plugin) {
+        this.plugin = plugin;
+    }
+
+    public void getVersion(final Consumer<String> consumer) {
+        Bukkit.getScheduler().runTaskAsynchronously(this.plugin, () -> {
+            try (InputStream inputStream = new URL(url).openStream(); Scanner scanner = new Scanner(inputStream)) {
+                StringBuilder response = new StringBuilder();
+                while (scanner.hasNextLine()) {
+                    response.append(scanner.nextLine());
+                }
+                
+                String content = response.toString();
+                // Einfaches Parsing des JSON "tag_name" Feldes
+                if (content.contains("\"tag_name\":")) {
+                    String version = content.split("\"tag_name\":\"")[1].split("\"")[0];
+                    // Entferne ein eventuelles 'v' Präfix (z.B. v1.0.0 -> 1.0.0)
+                    version = version.replace("v", "");
+                    consumer.accept(version);
+                }
+            } catch (IOException exception) {
+                this.plugin.getLogger().warning("Update-Check fehlgeschlagen: " + exception.getMessage());
+            }
+        });
+    }
+}