bot_covid.py

# Importing libraries
import hashlib
import os
import threading
import time
from urllib.request import urlopen, Request
# baseado neste post - https://codingshiksha.com/python/python-3-script-to-monitor-website-url-changes-website-monitoring-full-python-script-for-beginners/

import telebot

telegram_api_key = os.environ['TELEGRAM_API_KEY']
bot = telebot.TeleBot(telegram_api_key)
mybots = {}
BOT_INTERVAL = 3
BOT_TIMEOUT = 30


@bot.message_handler(commands=['start'])
def send(message):
    mybots[message.chat.id] = bot
    bot.send_message(message.chat.id, "ligado")


def send_later(mensagem):
    for id, bot in mybots.items():
        bot.send_message(id, text=mensagem)


# setting the URL you want to monitor
url = Request('https://covid19.min-saude.pt/pedido-de-agendamento/',
              headers={'User-Agent': 'Mozilla/5.0'})

# to perform a GET request and load the
# content of the website and store it in a var
response = urlopen(url).read()

# to create the initial hash
currentHash = hashlib.sha224(response).hexdigest()

time.sleep(10)


# bot.polling()

def thread_function(name):
    bot.polling()


x = threading.Thread(target=thread_function, args=(1,))
x.start()
while True:
    try:
        # bot.polling(none_stop=True, interval=BOT_INTERVAL, timeout=BOT_TIMEOUT)
        # perform the get request and store it in a var
        response = urlopen(url).read()

        # create a hash
        currentHash = hashlib.sha224(response).hexdigest()
        print(currentHash)
        # wait for 60 seconds
        time.sleep(60)

        # perform the get request
        response = urlopen(url).read()

        # create a new hash
        newHash = hashlib.sha224(response).hexdigest()

        # check if new hash is same as the previous hash
        if newHash == currentHash:
            continue

        # if something changed in the hashes
        else:
            # notify
            # print("alteração na página")
            send_later('alteração na página')

            # again read the website
            response = urlopen(url).read()

            # create a hash
            currentHash = hashlib.sha224(response).hexdigest()

            # wait for 60 seconds
            time.sleep(60)
            continue

    # To handle exceptions
    except Exception as e:
        print("error")