feat: implemented MotdModule

api/src/main/java/ru/dragonestia/msb3/api/Bootstrap.java

@@ -1,8 +1,10 @@
 package ru.dragonestia.msb3.api;
 
 import lombok.extern.log4j.Log4j2;
+import net.minestom.server.coordinate.Pos;
 import net.minestom.server.entity.GameMode;
 import ru.dragonestia.msb3.api.module.FlatWorldModule;
+import ru.dragonestia.msb3.api.module.MotdModule;
 import ru.dragonestia.msb3.api.module.ResourcePackRepositoryModule;
 
 @Log4j2
@@ -11,6 +13,7 @@ public class Bootstrap {
     public static void main(String[] args) {
         var boot = new ServerBootstrap();
 
+        MotdModule.init("logo.png", "<gradient:#ff0059:#e06806><bold>msb3 server</bold></gradient>");
         FlatWorldModule.init(GameMode.ADVENTURE);
 
         ResourcePackRepositoryModule.init(boot, "0.0.0.0", 7270);

api/src/main/java/ru/dragonestia/msb3/api/module/MotdModule.java

@@ -0,0 +1,63 @@
+package ru.dragonestia.msb3.api.module;
+
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.minimessage.MiniMessage;
+import net.minestom.server.MinecraftServer;
+import net.minestom.server.event.server.ServerListPingEvent;
+
+import javax.imageio.ImageIO;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.util.Base64;
+import java.util.function.Supplier;
+
+public class MotdModule {
+
+    private static boolean used = false;
+
+    private MotdModule() {}
+
+    public static void init(String internalResourceFile, String minimessage) {
+        var component = MiniMessage.miniMessage().deserialize(minimessage);
+        try (var stream = MotdModule.class.getClassLoader().getResourceAsStream(internalResourceFile)) {
+            assert stream != null;
+            init(stream.readAllBytes(), () -> component);
+        } catch (IOException ex) {
+            throw new RuntimeException(ex);
+        }
+    }
+
+    public static void init(File icon, String minimessage) {
+        var component = MiniMessage.miniMessage().deserialize(minimessage);
+        init(icon, () -> component);
+    }
+
+    public static void init(File icon, Supplier<Component> serverName) {
+        try {
+            var image = ImageIO.read(icon);
+            var stream = new ByteArrayOutputStream();
+            ImageIO.write(image, "png", stream);
+            init(stream.toByteArray(), serverName);
+            stream.close();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static synchronized void init(byte[] imageBytes, Supplier<Component> serverName) {
+        if (used) return;
+        used = true;
+
+        MinecraftServer.getGlobalEventHandler().addListener(ServerListPingEvent.class, event -> {
+            var data = event.getResponseData();
+
+            data.setDescription(serverName.get());
+            data.setFavicon(favicon(imageBytes));
+        });
+    }
+
+    private static String favicon(byte[] bytes) {
+        return "data:image/png;base64," + Base64.getEncoder().encodeToString(bytes);
+    }
+}