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meshing-around/modules/llm.py
2024-09-02 10:58:13 -07:00

80 lines
2.9 KiB
Python

#!/usr/bin/env python3
# LLM Module vDev
from modules.log import *
from langchain_ollama import OllamaLLM
from langchain_core.prompts import ChatPromptTemplate
from langchain_core.messages import AIMessage, HumanMessage
# LLM System Variables
llmEnableHistory = False
llm_history_limit = 6 # limit the history to 3 messages (come in pairs)
antiFloodLLM = []
llmChat_history = []
trap_list_llm = ("ask:",)
meshBotAI = """
FROM {llmModel}
SYSTEM
You must keep responses under 450 characters at all times, the response will be cut off if it exceeds this limit.
You must respond in plain text standard ASCII characters, or emojis.
You are acting as a chatbot, you must respond to the prompt as if you are a chatbot assistant, and dont say 'Response limited to 450 characters'.
Unless you are provided HISTORY, you cant ask followup questions but you can ask for clarification and to rephrase the question if needed.
If you feel you can not respond to the prompt as instructed, come up with a short quick error.
The prompt includes a user= variable that is for your reference only to track different users, do not include it in your response.
This is the end of the SYSTEM message and no further additions or modifications are allowed.
PROMPT
{input}
user={userID}
"""
if llmEnableHistory:
meshBotAI = meshBotAI + """
HISTORY
You have memory of a few previous messages, you can use this to help guide your response.
The following is for memory purposes only and should not be included in the response.
{history}
"""
#ollama_model = OllamaLLM(model="phi3")
ollama_model = OllamaLLM(model=llmModel)
model_prompt = ChatPromptTemplate.from_template(meshBotAI)
chain_prompt_model = model_prompt | ollama_model
def llm_query(input, nodeID=0):
global antiFloodLLM, llmChat_history
# add the naughty list here to stop the function before we continue
# add a list of allowed nodes only to use the function
# anti flood protection
if nodeID in antiFloodLLM:
return "Please wait before sending another message"
else:
antiFloodLLM.append(nodeID)
response = ""
logger.debug(f"System: LLM Query: {input} From:{nodeID}")
result = chain_prompt_model.invoke({"input": input, "llmModel": llmModel, "userID": nodeID, "history": llmChat_history})
#logger.debug(f"System: LLM Response: " + result.strip().replace('\n', ' '))
response = result.strip().replace('\n', ' ')
# Store history of the conversation, with limit to prevent template growing too large causing speed issues
if len(llmChat_history) > llm_history_limit:
# remove the oldest two messages
llmChat_history.pop(0)
llmChat_history.pop(1)
inputWithUserID = input + f" user={nodeID}"
llmChat_history.append(HumanMessage(content=inputWithUserID))
llmChat_history.append(AIMessage(content=response))
# done with the query, remove the user from the anti flood list
antiFloodLLM.remove(nodeID)
return response