import subprocess #for linux commands
import urllib.request #download site
import time
import sys
import smtplib
def send_email(email,password):
    message = 'Subject: {}\n\n{}'.format('SITE HAS BEEN CHANGED', "SITE HAS BEEN CHANGED")
    mail = smtplib.SMTP('smtp.gmail.com',587)
    mail.ehlo()
    mail.starttls()
    mail.login(email,password)
    mail.sendmail(email,'damian.kuter@gmail.com', message)
    mail.close()

def download_to_file(link,file_name):
    source_site = urllib.request.urlopen(link)
    subprocess.call(["touch", file_name])
    source_site_byte = source_site.read()
    source_site_str = source_site_byte.decode('utf-8')
    file = open(file_name, "w")
    file.write(source_site_str)
    file.close
def diff_list(source_site_list,compare_site_list):
    if source_site_list != compare_site_list:
        print("Site has been changed")
        send_email('developer.messenger@gmail.com','***********')
        subprocess.Popen(['notify-send', 'SITE HAS BEEN CHANGED'])
        sys.exit(0) #Close program if site changed


def main_function():
    try:
        print("To exit please press Ctrl + C")
        try:
            subprocess.call(["rm", "source_site.txt"])
            print("source_site.txt has been deleted")
        except:
            print("source_site.txt no exist")
        try:
            subprocess.call(["rm", "compare_site.txt"])
            print("compare_site.txt has been deleted")
        except:
            print("compare_site.txt no exist")
        download_to_file('http://rarez.pl','source_site.txt')
        while True:
            download_to_file('http://rarez.pl','compare_site.txt')
            source_site_list = open("source_site.txt").readlines()
            compare_site_list = open("compare_site.txt").readlines()
            diff_list(source_site_list,compare_site_list)
            time.sleep(10)

    except KeyboardInterrupt:
        pass
if __name__ == "__main__":
    main_function()