feat(help): add "Mark Active" button to inactivity warning

application/src/main/java/org/togetherjava/tjbot/features/help/HelpThreadAutoArchiver.java

@@ -8,6 +8,7 @@
 import net.dv8tion.jda.api.entities.MessageEmbed;
 import net.dv8tion.jda.api.entities.channel.concrete.ForumChannel;
 import net.dv8tion.jda.api.entities.channel.concrete.ThreadChannel;
+import net.dv8tion.jda.api.interactions.components.buttons.Button;
 import net.dv8tion.jda.api.requests.RestAction;
 import net.dv8tion.jda.api.utils.TimeUtil;
 import org.slf4j.Logger;
@@ -88,8 +89,8 @@ private void autoArchiveForThread(ThreadChannel threadChannel) {
                     """
                             Your question has been closed due to inactivity.
 
-                            If it was not resolved yet, feel free to just post a message below
-                            to reopen it, or create a new thread.
+                            If it was not resolved yet, **click the button below** to keep it
+                            open, or feel free to create a new thread.
 
                             Note that usually the reason for nobody calling back is that your
                             question may have been not well asked and hence no one felt confident
@@ -128,41 +129,48 @@ private void handleArchiveFlow(ThreadChannel threadChannel, MessageEmbed embed)
                     () -> triggerAuthorIdNotFoundArchiveFlow(threadChannel, embed));
     }
 
-    private void triggerArchiveFlow(ThreadChannel threadChannel, long authorId,
-            MessageEmbed embed) {
+    private void triggerArchiveFlow(ThreadChannel threadChannel, long authorId, MessageEmbed embed) {
 
+        // --- UPDATED: Added ActionRow with custom namespace ID ---
         Function<Member, RestAction<Message>> sendEmbedWithMention =
-                member -> threadChannel.sendMessage(member.getAsMention()).addEmbeds(embed);
+                member -> threadChannel.sendMessage(member.getAsMention())
+                        .addEmbeds(embed)
+                        .addActionRow(Button.primary("OTHER:thread-inactivity:mark-active", "Mark Active"));
 
         Supplier<RestAction<Message>> sendEmbedWithoutMention =
-                () -> threadChannel.sendMessageEmbeds(embed);
+                () -> threadChannel.sendMessageEmbeds(embed)
+                        .addActionRow(Button.primary("OTHER:thread-inactivity:mark-active", "Mark Active"));
+        // ---------------------------------------------------------
 
         threadChannel.getGuild()
-            .retrieveMemberById(authorId)
-            .mapToResult()
-            .flatMap(authorResults -> {
-                if (authorResults.isFailure()) {
-                    logger.info(
-                            "Trying to archive a thread ({}), but OP ({}) left the server, sending embed without mention",
-                            threadChannel.getId(), authorId, authorResults.getFailure());
-
-                    return sendEmbedWithoutMention.get();
-                }
-
-                return sendEmbedWithMention.apply(authorResults.get());
-            })
-            .flatMap(_ -> threadChannel.getManager().setArchived(true))
-            .queue();
+                .retrieveMemberById(authorId)
+                .mapToResult()
+                .flatMap(authorResults -> {
+                    if (authorResults.isFailure()) {
+                        logger.info(
+                                "Trying to archive a thread ({}), but OP ({}) left the server, sending embed without mention",
+                                threadChannel.getId(), authorId, authorResults.getFailure());
+
+                        return sendEmbedWithoutMention.get();
+                    }
+
+                    return sendEmbedWithMention.apply(authorResults.get());
+                })
+                .flatMap(_ -> threadChannel.getManager().setArchived(true))
+                .queue();
     }
 
-    private void triggerAuthorIdNotFoundArchiveFlow(ThreadChannel threadChannel,
-            MessageEmbed embed) {
+    private void triggerAuthorIdNotFoundArchiveFlow(ThreadChannel threadChannel, MessageEmbed embed) {
 
         logger.info(
                 "Was unable to find a matching thread for id: {} in DB, archiving thread without mentioning OP",
                 threadChannel.getId());
+
+        // --- UPDATED: Added ActionRow with custom namespace ID ---
         threadChannel.sendMessageEmbeds(embed)
-            .flatMap(sentEmbed -> threadChannel.getManager().setArchived(true))
-            .queue();
+                .addActionRow(Button.primary("OTHER:thread-inactivity:mark-active", "Mark Active"))
+                .flatMap(sentEmbed -> threadChannel.getManager().setArchived(true))
+                .queue();
+        // ---------------------------------------------
     }
 }

application/src/main/java/org/togetherjava/tjbot/features/help/HelpThreadCreatedListener.java

@@ -47,6 +47,10 @@ public final class HelpThreadCreatedListener extends ListenerAdapter
     private static final Logger log = LoggerFactory.getLogger(HelpThreadCreatedListener.class);
     private final HelpSystemHelper helper;
 
+    private static final String MARK_ACTIVE_ID = "mark-active";
+    private final ComponentIdInteractor inactivityInteractor =
+            new ComponentIdInteractor(UserInteractionType.OTHER, "thread-inactivity");
+
     private final Cache<Long, Instant> threadIdToCreatedAtCache = Caffeine.newBuilder()
         .maximumSize(1_000)
         .expireAfterAccess(2, TimeUnit.of(ChronoUnit.MINUTES))
@@ -187,7 +191,16 @@ private Consumer<Throwable> handleParentMessageDeleted(Member user, ThreadChanne
 
     @Override
     public void onButtonClick(ButtonInteractionEvent event, List<String> args) {
-        // This method handles chatgpt's automatic response "dismiss" button
+        // Check if the button belongs to the "thread-inactivity" namespace
+        if (inactivityInteractor.isMatch(event.getComponentId())) {
+            String subId = inactivityInteractor.getComponentId(event.getComponentId());
+
+            if (subId.equals("mark-active")) {
+                handleMarkActiveInteraction(event);
+                return; // EXIT: This logic is owned by handleMarkActiveInteraction
+            }
+        }
+        // Handle chatgpt's automatic response "dismiss" button
         event.deferEdit().queue();
 
         ThreadChannel channel = event.getChannel().asThreadChannel();
@@ -248,4 +261,17 @@ private void registerThreadDataInDB(Message message, ThreadChannel threadChannel
 
         helper.writeHelpThreadToDatabase(authorId, threadChannel);
     }
+
+    private void handleMarkActiveInteraction(ButtonInteractionEvent event) {
+        event.deferEdit().queue();
+
+        if (event.getChannel() instanceof ThreadChannel thread) {
+            // Reopen the thread so people can chat, then delete the bot's warning
+            thread.getManager().setArchived(false).queue();
+            event.getMessage().delete().queue();
+
+            log.info("Thread {} was manually reactivated via button by {}",
+                    thread.getId(), event.getUser().getName());
+        }
+    }
 }