buergerbot.rb

#!/usr/bin/env ruby

require 'watir'
require 'logger'
require 'pry'
require 'telegram/bot'

TOKEN = '<TG_TOKEN>'
CHAT_ID = -12345678

logger = Logger.new($stdout)
Telegram.bots_config = { default: TOKEN }


def appointment_available?(b, logger)
  url = 'https://service.berlin.de/terminvereinbarung/termin/tag.php?termin=1&anliegen[]=327537&dienstleisterlist=122217,122219,122227,122231,122243,122252,122260,122262,122254,122271,122273,122277,122280,122282,122284,327539,122291,122285,122286,122296,150230,122301,122297,122294,122312,122314,122304,122311,122309,122281,122279,122276,122274,122267,122246,122251,122257,122208,122226&herkunft=http%3A%2F%2Fservice.berlin.de%2Fdienstleistung%2F327537%2F'
  puts '-' * 80
  logger.debug 'Trying again'
  b.goto url
  logger.debug 'Page loaded'
  link = b.element css: '.calendar-month-table td.buchbar a'
  if link.exists?
    # link.click
    appointment_date = Time.at(link.attributes[:href][/\d+/].to_i).to_date
    days_to_appointment = (appointment_date - Date.today).to_i
    logger.info "Appointment available for #{appointment_date} (in #{days_to_appointment} days)"
    if (0..7).include?(days_to_appointment)
      text =
        "Доступна запись через #{days_to_appointment} дней (#{appointment_date})"

      Telegram.bots[:default].send_message(
        chat_id: CHAT_ID, text: text
      )

      # Use Siri to pronounce the text
      # `say -v Milena "#{text}"`
    end
  else
    logger.debug 'No luck this time.'
  end

  false
rescue StandardError => e
  logger.fatal e.inspect
  false
end

b = Watir::Browser.new :chrome # , headless: true
until appointment_available?(b, logger)
  logger.debug 'Sleeping.'
  sleep(rand(60..120))
end