import streamlit as st
import json

DATABASE_FILE = "database.json"

def load_database():
    try:
        with open(DATABASE_FILE, "r") as file:
            return json.load(file)
    except FileNotFoundError:
        return {}

def save_database(database):
    with open(DATABASE_FILE, "w") as file:
        json.dump(database, file, indent=4)

def find_similar_question(question, database):
    similar_questions = []
    for q in database.keys():
        if question.lower() in q.lower() or q.lower() in question.lower():
            similar_questions.append(q)
    return similar_questions

def get_answer(question, database):
    similar_questions = find_similar_question(question, database)
    if len(similar_questions) > 0:
        return database[similar_questions[0]]
    else:
        return "Извините, я не понимаю ваш вопрос."

def main():
    st.title("Простой чат-бот")
    question = st.text_input("Задайте ваш вопрос")
    if st.button("Отправить"):
        database = load_database()
        answer = get_answer(question, database)
        st.text_area("Ответ", value=answer, height=200)
        database[question] = answer
        save_database(database)

if __name__ == "__main__":
    main()