🐛 Lark API send_message may need receive_id_type parameter fix

[IvyGain]

Description

The send_message method in lark_client.py may not correctly handle different receive_id types (chat_id vs open_id vs user_id).

Problem

In lark_client.py lines 119-139:

async def send_message(
    self, 
    chat_id: str, 
    message: str, 
    message_type: str = "text"
) -> Dict[str, Any]:
    """Send a message to a chat or user."""
    content = {"text": message} if message_type == "text" else {"content": message}
    
    data = {
        "receive_id": chat_id,
        "msg_type": message_type,
        "content": json.dumps(content)
    }
    
    return await self._make_request(
        "POST",
        "/im/v1/messages",
        data=data,
        params={"receive_id_type": "chat_id"}  # Always hardcoded as chat_id
    )

Issues:

1. The receive_id_type is hardcoded to "chat_id", but the receive_id from webhook events might be:

   • chat_id (group chats)
   • open_id (1-on-1 chats with users)

2. For 1-on-1 bot chats, the correct receive_id_type might need to be "open_id" or the method needs to auto-detect the type.

Impact

When users send messages in 1-on-1 chats, the bot may fail to respond because it's using the wrong receive_id_type.

Solution

async def send_message(
    self, 
    receive_id: str, 
    message: str, 
    message_type: str = "text",
    receive_id_type: str = "chat_id"  # Allow caller to specify
) -> Dict[str, Any]:
    """Send a message to a chat or user."""
    content = {"text": message} if message_type == "text" else {"content": message}
    
    data = {
        "receive_id": receive_id,
        "msg_type": message_type,
        "content": json.dumps(content)
    }
    
    return await self._make_request(
        "POST",
        "/im/v1/messages",
        data=data,
        params={"receive_id_type": receive_id_type}
    )

Or auto-detect based on ID prefix patterns:

• oc_* → chat_id
• ou_* → open_id
• on_* → union_id

Priority

MEDIUM - May cause message delivery failures in certain chat types