app.py

import streamlit as st
import requests
import time
import validators
import pandas as pd

MAX_RETRIES = 3

def is_valid_youtube_url(url):
    # проверяем, является ли URL допустимым URL YouTube
    return validators.url(url) and ("youtube.com" in url or "youtu.be" in url)

def make_request_put(url, query):
    retries = 0
    while retries < MAX_RETRIES:
        try:
            response = requests.post(url, json={"url_video": query})
            response.raise_for_status()  # генерировать исключение, если ответ содержит ошибку
            return response.json()
        except (requests.exceptions.RequestException, requests.exceptions.HTTPError) as e:
            time.sleep(10)  # подождать перед повторной попыткой
            retries += 1
    st.error("error")
    return None

def color_negative_red(val):
    color = 'red' if val == 'NEGATIVE' else 'grey' if val == 'NEUTRAL' else 'green'
    return f'color: {color}'


url = st.text_input("YouTube url")
clicked = st.button("Sentiment Analysis")

if clicked and is_valid_youtube_url(url):

    data = make_request_put("https://macrdel-sentiment-summarize-youtube-comms.hf.space/comments", url)
    if data:
        data = pd.DataFrame(data)
        st.write(data.style.applymap(color_negative_red, subset=['sentiment']))

else:
    
    st.error("error url")