basic nav status counts

maildir_gtd/actions/next.py

@@ -23,13 +23,13 @@ def action_next(app) -> None:
             import json
             envelopes = json.loads(result.stdout)
             ids = sorted(int(envelope['id']) for envelope in envelopes)
-            for envelope_id in ids:
-                if envelope_id > app.current_message_id:
-                    app.current_message_id = envelope_id
-                    app.show_message(app.current_message_id)
-                    app.show_status(f"Showing next message: {app.current_message_id}")
+            for index, envelope_id in enumerate(ids):
+                if envelope_id > int(app.current_message_id):
+                    app.show_message(envelope_id)
                     return
+
             app.show_status("No newer messages found.", severity="warning")
+            app.show_message(envelopes[-1]['id'])  # Automatically show the previous message
         else:
             app.show_status("Failed to fetch envelope list.", severity="error")
     except Exception as e: