refactor email viewer app

maildir_gtd/actions/archive.py

@@ -0,0 +1,21 @@
+from textual.widgets import Static
+import subprocess
+
+from maildir_gtd.actions.next import action_next
+def action_archive(app) -> None:
+    """Archive the current email message."""
+    app.show_status(f"Archiving message {app.current_message_id}...")
+    try:
+        result = subprocess.run(
+            ["himalaya", "message", "move", "Archives", str(app.current_message_id)],
+            capture_output=True,
+            text=True
+        )
+        if result.returncode == 0:
+            app.query_one("#main_content", Static).update(f"Message {app.current_message_id} archived.")
+            app.show_status(f"Message {app.current_message_id} archived.")
+            action_next(app)  # Automatically show the next message
+        else:
+            app.query_one("#main_content", Static).update(f"Failed to archive message {app.current_message_id}.")
+    except Exception as e:
+        app.query_one("#main_content", Static).update(f"Error: {e}")