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from langchain_core.prompts import PromptTemplate
from langchain_openai import ChatOpenAI

llm = ChatOpenAI(model="gpt-4-turbo", temperature=0)

class LLMInterface:

    def __init__(self, memory):
        self.memory = memory
        self.prompt_template = self.create_prompt_template()


    def create_prompt_template(self):
        template = """You are a report system chat bot that summarizes news based on the memory provided
        which has the description, the date and the title of some brazilian news. The input will be provided next
        containing some question about the data. You need to answer in brazilian portuguese. You HAVE to use Telegram compatible basic HTML language
        Insert links as hyperlink to the topics if needed. Also, remember to refer to the source of the information

        Memory:
        {memory}

        New request for report: {input}
        Response:"""
        return PromptTemplate.from_template(template)

    
    def get_llm_response(self,input):
        prompt = self.prompt_template.format(
            input=input, memory=str(self.memory[-50:])
            )
        return llm.invoke(prompt).content