bug: do not archive pinned threads (resolves #1084) (#1088)

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

@@ -8,7 +8,6 @@
 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.entities.channel.middleman.MessageChannel;
 import net.dv8tion.jda.api.requests.RestAction;
 import net.dv8tion.jda.api.utils.TimeUtil;
 import org.slf4j.Logger;
@@ -70,58 +69,57 @@ private void autoArchiveForGuild(Guild guild) {
         logger.debug("Found {} active questions", activeThreads.size());
 
         Instant archiveAfterMoment = computeArchiveAfterMoment();
-        activeThreads
-            .forEach(activeThread -> autoArchiveForThread(activeThread, archiveAfterMoment));
+        activeThreads.stream()
+            .filter(activeThread -> shouldBeArchived(activeThread, archiveAfterMoment))
+            .forEach(this::autoArchiveForThread);
     }
 
     private Instant computeArchiveAfterMoment() {
         return Instant.now().minus(ARCHIVE_AFTER_INACTIVITY_OF);
     }
 
-    private void autoArchiveForThread(ThreadChannel threadChannel, Instant archiveAfterMoment) {
-        if (shouldBeArchived(threadChannel, archiveAfterMoment)) {
-            logger.debug("Auto archiving help thread {}", threadChannel.getId());
+    private void autoArchiveForThread(ThreadChannel threadChannel) {
+        logger.debug("Auto archiving help thread {}", threadChannel.getId());
 
-            String linkHowToAsk = "https://stackoverflow.com/help/how-to-ask";
+        String linkHowToAsk = "https://stackoverflow.com/help/how-to-ask";
 
-            MessageEmbed embed = new EmbedBuilder()
-                .setDescription(
-                        """
-                                Your question has been closed due to inactivity.
+        MessageEmbed embed = new EmbedBuilder()
+            .setDescription(
+                    """
+                            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, feel free to just post a message below
+                            to reopen it, or 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
-                                enough answering.
+                            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
+                            enough answering.
 
-                                When you reopen the thread, try to use your time to **improve the quality**
-                                of the question by elaborating, providing **details**, context, all relevant code
-                                snippets, any **errors** you are getting, concrete **examples** and perhaps also some
-                                screenshots. Share your **attempt**, explain the **expected results** and compare
-                                them to the current results.
+                            When you reopen the thread, try to use your time to **improve the quality**
+                            of the question by elaborating, providing **details**, context, all relevant code
+                            snippets, any **errors** you are getting, concrete **examples** and perhaps also some
+                            screenshots. Share your **attempt**, explain the **expected results** and compare
+                            them to the current results.
 
-                                Also try to make the information **easily accessible** by sharing code
-                                or assignment descriptions directly on Discord, not behind a link or
-                                PDF-file; provide some guidance for long code snippets and ensure
-                                the **code is well formatted** and has syntax highlighting. Kindly read through
-                                %s for more.
+                            Also try to make the information **easily accessible** by sharing code
+                            or assignment descriptions directly on Discord, not behind a link or
+                            PDF-file; provide some guidance for long code snippets and ensure
+                            the **code is well formatted** and has syntax highlighting. Kindly read through
+                            %s for more.
 
-                                With enough info, someone knows the answer for sure 👍"""
-                            .formatted(linkHowToAsk))
-                .setColor(HelpSystemHelper.AMBIENT_COLOR)
-                .build();
+                            With enough info, someone knows the answer for sure 👍"""
+                        .formatted(linkHowToAsk))
+            .setColor(HelpSystemHelper.AMBIENT_COLOR)
+            .build();
 
-            handleArchiveFlow(threadChannel, embed);
-        }
+        handleArchiveFlow(threadChannel, embed);
     }
 
-    private static boolean shouldBeArchived(MessageChannel channel, Instant archiveAfterMoment) {
+    private static boolean shouldBeArchived(ThreadChannel channel, Instant archiveAfterMoment) {
         Instant lastActivity =
                 TimeUtil.getTimeCreated(channel.getLatestMessageIdLong()).toInstant();
 
-        return lastActivity.isBefore(archiveAfterMoment);
+        return !channel.isPinned() && lastActivity.isBefore(archiveAfterMoment);
     }
 
     private void handleArchiveFlow(ThreadChannel threadChannel, MessageEmbed embed) {