handle threads when authorId found (#1068)

* handle threads when authorId found

* log no authorId found flow

Author: ankitsmt211

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

@@ -125,15 +125,20 @@ private static boolean shouldBeArchived(MessageChannel channel, Instant archiveA
     }
 
     private void handleArchiveFlow(ThreadChannel threadChannel, MessageEmbed embed) {
+        helper.getAuthorByHelpThreadId(threadChannel.getIdLong())
+            .ifPresentOrElse(authorId -> triggerArchiveFlow(threadChannel, authorId, embed),
+                    () -> triggerAuthorIdNotFoundArchiveFlow(threadChannel, embed));
+    }
+
+    private void triggerArchiveFlow(ThreadChannel threadChannel, long authorId,
+            MessageEmbed embed) {
 
         Function<Member, RestAction<Message>> sendEmbedWithMention =
                 member -> threadChannel.sendMessage(member.getAsMention()).addEmbeds(embed);
 
         Supplier<RestAction<Message>> sendEmbedWithoutMention =
                 () -> threadChannel.sendMessageEmbeds(embed);
 
-        long authorId = helper.getAuthorByHelpThreadId(threadChannel.getIdLong()).orElseThrow();
-
         threadChannel.getGuild()
             .retrieveMemberById(authorId)
             .mapToResult()
@@ -151,4 +156,15 @@ private void handleArchiveFlow(ThreadChannel threadChannel, MessageEmbed embed)
             .flatMap(any -> threadChannel.getManager().setArchived(true))
             .queue();
     }
+
+    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());
+        threadChannel.sendMessageEmbeds(embed)
+            .flatMap(sentEmbed -> threadChannel.getManager().setArchived(true))
+            .queue();
+    }
 }