Disabled Features should be logged

application/src/main/java/org/togetherjava/tjbot/features/Features.java

@@ -1,6 +1,7 @@
 package org.togetherjava.tjbot.features;
 
 import net.dv8tion.jda.api.JDA;
+import org.slf4j.Logger;
 
 import org.togetherjava.tjbot.config.Config;
 import org.togetherjava.tjbot.config.FeatureBlacklist;
@@ -51,13 +52,14 @@
 import java.util.ArrayList;
 import java.util.Collection;
 
+
 /**
  * Utility class that offers all features that should be registered by the system, such as commands.
  * New features have to be added here, where {@link BotCore} will then pick it up from and register
  * it with the system.
  * <p>
  * To add a new slash command, extend the commands returned by
- * {@link #createFeatures(JDA, Database, Config)}.
+ * {@link #createFeatures(JDA, Database, Config, Logger)}.
  */
 public class Features {
     private Features() {
@@ -73,9 +75,11 @@ private Features() {
      * @param jda the JDA instance commands will be registered at
      * @param database the database of the application, which features can use to persist data
      * @param config the configuration features should use
+     * @param logger the logger instance to log disabled features
      * @return a collection of all features
      */
-    public static Collection<Feature> createFeatures(JDA jda, Database database, Config config) {
+    public static Collection<Feature> createFeatures(JDA jda, Database database, Config config,
+            Logger logger) {
         FeatureBlacklistConfig blacklistConfig = config.getFeatureBlacklistConfig();
         JShellEval jshellEval = new JShellEval(config.getJshell());
 
@@ -89,7 +93,7 @@ public static Collection<Feature> createFeatures(JDA jda, Database database, Con
         ChatGptService chatGptService = new ChatGptService(config);
         HelpSystemHelper helpSystemHelper = new HelpSystemHelper(config, database, chatGptService);
 
-        // NOTE The system can add special system relevant commands also by itself,
+        // NOTE The system can add special system-relevant commands also by itself,
         // hence this list may not necessarily represent the full list of all commands actually
         // available.
         Collection<Feature> features = new ArrayList<>();
@@ -161,6 +165,11 @@ public static Collection<Feature> createFeatures(JDA jda, Database database, Con
         features.add(new JShellCommand(jshellEval));
 
         FeatureBlacklist<Class<?>> blacklist = blacklistConfig.normal();
-        return features.stream().filter(f -> blacklist.isEnabled(f.getClass())).toList();
+        return features.stream().filter(f -> !blacklist.isEnabled(f.getClass())).peek(f -> {
+            // Log INFO level message for each disabled feature using the provided logger
+            String message = "Feature '" + f.getClass().getSimpleName() + "' is disabled.";
+            logger.info(message);
+        }).toList();
+
     }
 }

application/src/main/java/org/togetherjava/tjbot/features/system/BotCore.java

@@ -71,7 +71,7 @@ public final class BotCore extends ListenerAdapter implements CommandProvider {
      */
     public BotCore(JDA jda, Database database, Config config) {
         this.config = config;
-        Collection<Feature> features = Features.createFeatures(jda, database, config);
+        Collection<Feature> features = Features.createFeatures(jda, database, config, logger);
 
         // Message receivers
         features.stream()