From 15404d91a3c2d324808c640a1e605984a2fb7730 Mon Sep 17 00:00:00 2001
From: Alter-xyz <88554920+alterxyz@users.noreply.github.com>
Date: Sat, 29 Jun 2024 08:58:49 -0400
Subject: [PATCH] feat: skip update duplicate message

---
 handlers/__init__.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/handlers/__init__.py b/handlers/__init__.py
index db934e1..0f5d961 100644
--- a/handlers/__init__.py
+++ b/handlers/__init__.py
@@ -15,6 +15,7 @@ from telebot.util import smart_split
 import telegramify_markdown
 from telegramify_markdown.customize import markdown_symbol
 from urlextract import URLExtract
+from expiringdict import ExpiringDict
 
 markdown_symbol.head_level_1 = "📌"  # If you want, Customizing the head level 1 symbol
 markdown_symbol.link = "🔗"  # If you want, Customizing the link symbol
@@ -23,6 +24,8 @@ T = TypeVar("T", bound=Callable)
 
 BOT_MESSAGE_LENGTH = 4000
 
+REPLY_MESSAGE_CACHE = ExpiringDict(max_len=1000, max_age_seconds=300)
+
 
 def bot_reply_first(message: Message, who: str, bot: TeleBot) -> Message:
     """Create the first reply message which make user feel the bot is working."""
@@ -44,6 +47,11 @@ def bot_reply_markdown(
     it will fallback to plain text in case of any failure
     """
     try:
+        cache_key = f"{reply_id.chat.id}_{reply_id.message_id}"
+        if cache_key in REPLY_MESSAGE_CACHE and REPLY_MESSAGE_CACHE[cache_key] == text:
+            print(f"Skipping duplicate message for {cache_key}")
+            return True
+        REPLY_MESSAGE_CACHE[cache_key] = text
         if len(text.encode("utf-8")) <= BOT_MESSAGE_LENGTH or not split_text:
             bot.edit_message_text(
                 f"*{who}*:\n{telegramify_markdown.convert(text)}",