From 679f9ac2fe53bf14f67391a3993958ab5278b2db Mon Sep 17 00:00:00 2001
From: "CHIH-HAO, CHUANG" <contact@chih-hao.xyz>
Date: Fri, 24 Apr 2026 13:50:57 +0800
Subject: [PATCH] Make bot send message like a real human

---
 interaction/chat.py      | 19 +++++++++++++------
 llm/llm.py               |  3 ++-
 utils/send_like_human.py | 20 ++++++++++++++++++++
 3 files changed, 35 insertions(+), 7 deletions(-)
 create mode 100644 utils/send_like_human.py

diff --git a/interaction/chat.py b/interaction/chat.py
index 059dea6..70a80f1 100644
--- a/interaction/chat.py
+++ b/interaction/chat.py
@@ -1,5 +1,7 @@
-from discord import Bot, Message
+from discord import Bot, Message, TextChannel, Thread
+
 from llm.llm import get_llm_service
+from utils.send_like_human import send_like_human
 
 
 async def handle_chat(bot: Bot, message: Message) -> None:
@@ -7,10 +9,10 @@ async def handle_chat(bot: Bot, message: Message) -> None:
     bot_user = bot.user
 
     if bot_user is None or bot_user == user or user.bot:
-        return
+        return None
 
     if bot_user not in message.mentions:
-        return
+        return None
 
     content = message.content
     for mention_user in message.mentions:
@@ -25,17 +27,22 @@ async def handle_chat(bot: Bot, message: Message) -> None:
         llm_service = get_llm_service()
     except ValueError as e:
         await message.reply(f"聊天功能無法使用: {str(e)}")
-        return
+        return None
     except Exception as e:
         await message.reply(f"初始化聊天服務時發生錯誤: {str(e)}")
-        return
+        return None
 
     try:
         async with message.channel.typing():
             response = await llm_service.process_message(
                 message=message,
             )
-        await message.reply(response, mention_author=False)
+
+        if not isinstance(message.channel, (TextChannel, Thread)):
+            await message.reply("無法回覆訊息: 頻道類型不受支持")
+            return None
+
+        await send_like_human(message.channel, response)
     except Exception as e:
         error_msg = f"抱歉，處理訊息時發生錯誤: {str(e)}"
         await message.reply(error_msg)
diff --git a/llm/llm.py b/llm/llm.py
index 2789c38..b136bfd 100644
--- a/llm/llm.py
+++ b/llm/llm.py
@@ -15,6 +15,7 @@
 from db import get_db
 from repository.chat_repository import ChatRepository
 from tools import AVAILABLE_TOOLS
+from utils.send_like_human import send_like_human
 
 from .config import OpenAIConfig
 from .filter import post_filter
@@ -296,7 +297,7 @@ async def system_event_callback(
                 content=response,
             )
 
-        await text_channel.send(response)
+        await send_like_human(text_channel, response)
 
 
 # pylint: disable=invalid-name
diff --git a/utils/send_like_human.py b/utils/send_like_human.py
new file mode 100644
index 0000000..b7a9849
--- /dev/null
+++ b/utils/send_like_human.py
@@ -0,0 +1,20 @@
+from discord import TextChannel, Thread
+
+from asyncio import sleep as asleep
+from random import random
+from typing import Union
+
+
+async def send_like_human(
+    channel: Union[TextChannel, Thread],
+    content: str
+) -> None:
+    message_list = content.split("\n\n")
+    for i, msg in enumerate(message_list):
+        await channel.send(msg)
+
+        if i >= len(message_list) - 1:
+            break
+
+        async with channel.typing():
+            await asleep(random() + 0.3)