app.py

import os
import gradio as gr
import bs4

from langchain_community.document_loaders import WebBaseLoader
from langchain.text_splitter import CharacterTextSplitter
from langchain_community.embeddings import HuggingFaceEmbeddings
from langchain.vectorstores import FAISS
from langchain.chains import RetrievalQA
from langchain_groq import ChatGroq

# 환경 변수로부터 Groq API Key 불러오기
groq_api_key = os.environ.get("GROQ_API_KEY", "")

# 국가기록원 웹 문서 목록
urls = [
    "https://archives.go.kr/next/newsearch/listSubjectContent.do?subjectFieldId=000011",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003140&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003288&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003290&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003292&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=008757&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003293&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003294&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003295&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003289&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=010816&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=010817&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=009154&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003260&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003278&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003281&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003283&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003284&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003280&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003282&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003287&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003286&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003285&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003279&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003141&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003143&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003144&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003142&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=008653&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=010827&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=008582&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=008663&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=008581&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=010828&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=010830&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=010831&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003145&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=009425&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003146&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=010821&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003151&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003149&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003148&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=008655&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=008654&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newsearch/listSubjectDescription.do?id=003150&pageFlag=A&sitePage=1-2-1",
    "https://archives.go.kr/next/newmanager/recodeRegister.do",
    "https://archives.go.kr/next/newtour/tourCourse.do",
    "https://archives.go.kr/next/newrecordsMngPro/recordsDonateInfo.do",
    "https://archives.go.kr/next/newdata/pepoleRecodPresentIntro.do",
    "https://archives.go.kr/next/newsearch/searchGuideList.do",
    "https://archives.go.kr/next/newsearch/searchGuideList.do?page=2",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=441",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=381",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=341",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=261",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=227",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=59",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=30",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=64",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=321",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=124",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=267",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=141",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=149",
    "https://archives.go.kr/next/newsearch/searchGuideDetail.do?guideSeq=22"
]

# 웹문서 로딩
loader = WebBaseLoader(web_paths=urls, bs_kwargs=dict(parse_only=bs4.SoupStrainer()))
docs = loader.load()

# 문서 분할
splitter = CharacterTextSplitter(separator="\n", chunk_size=500, chunk_overlap=50)
split_docs = splitter.split_documents(docs)

# 임베딩 및 벡터 저장 및 리트리버 설정
embedding_model = HuggingFaceEmbeddings(model_name="snunlp/KR-SBERT-V40K-klueNLI-augSTS")
vectorstore = FAISS.from_documents(split_docs, embedding_model)
retriever = vectorstore.as_retriever()

# LLM + QA 체인
llm = ChatGroq(groq_api_key=groq_api_key, model_name="llama3-70b-8192")
qa_chain = RetrievalQA.from_chain_type(llm=llm, retriever=retriever, chain_type="stuff")

# Gradio 채팅 함수
def chat_with_history(user_input, history):
    if history is None:
        history = []
    query = user_input.strip() + " 한국어로 답해주세요."
    result = qa_chain({"query": query})
    answer = result.get("result", "답변을 찾을 수 없습니다.")
    history.append((user_input, answer))
    return "", history, history

# Gradio 인터페이스 구성
with gr.Blocks() as demo:
    gr.Markdown("## 📚 국가기록원 정보 챗봇")
    chatbot = gr.Chatbot(label="기록원 챗봇")
    msg = gr.Textbox(placeholder="질문을 입력하세요", label="💬 질문 입력")
    state = gr.State([])
    msg.submit(chat_with_history, inputs=[msg, state], outputs=[msg, chatbot, state])

demo.launch()