# classification_chain.py
import os
from langchain.chains import LLMChain
from langchain_groq import ChatGroq

# We'll import the classification_prompt from prompts.py
from prompts import classification_prompt

def get_classification_chain() -> LLMChain:
    """
    Builds the classification chain (LLMChain) using ChatGroq and the classification prompt.
    """
    # Initialize the ChatGroq model (Gemma2-9b-It) with your GROQ_API_KEY
    chat_groq_model = ChatGroq(
        model="Gemma2-9b-It",
        groq_api_key=os.environ["GROQ_API_KEY"]  # must be set in environment
    )

    # Build an LLMChain
    classification_chain = LLMChain(
        llm=chat_groq_model,
        prompt=classification_prompt
    )
    return classification_chain