From 9b7a6c5c073b75a79bc75b70c4ab552ee74385b7 Mon Sep 17 00:00:00 2001
From: Jeena <hello@jeena.net>
Date: Sun, 4 Jan 2026 16:54:13 +0900
Subject: [PATCH] Improve code style in load_state

Replace duplicate strip() calls with filter(None, generator) for
cleaner and more efficient processing of processed Message-IDs.

Changes:
- Use set(filter(None, (line.strip() for line in f))) to avoid calling
  strip() twice and filter empty lines
---
 main.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.py b/main.py
index 9573faa..389e34e 100644
--- a/main.py
+++ b/main.py
@@ -155,7 +155,7 @@ class EmailForwarder:
         processed_file = self.config["processed_file"]
         if os.path.exists(processed_file):
             with open(processed_file, "r") as f:
-                self.processed_ids = set(line.strip() for line in f if line.strip())
+                self.processed_ids = set(filter(None, (line.strip() for line in f)))
 
     def save_state(self):
         """Save last run and processed IDs."""