from langchain_community.llms.ctransformers import CTransformers
import os


MODEL_TYPE = os.getenv("MODEL_TYPE",'mistral')
MODEL_BIN_PATH =  os.getenv("MODEL_BIN_PATH","model/mistral-7b-instruct-v0.1.Q3_K_S.gguf")
MAX_NEW_TOKEN =  int(os.getenv("MAX_NEW_TOKEN",600))
TEMPRATURE =  float(os.getenv("TEMPRATURE", 0.01))
CONTEXT_LENGTH =  int(os.getenv("CONTEXT_LENGTH", 6000))


class LLMWrapper:
    def __init__(self):
        self.llm = CTransformers(
            model=MODEL_BIN_PATH,
            config={
                'max_new_tokens': MAX_NEW_TOKEN,
                'temperature': TEMPRATURE,
                'context_length': CONTEXT_LENGTH
            },
            model_type=MODEL_TYPE
        )

    def generate_text(self, prompt):
        return self.llm(prompt)