import os
import socket
from time import sleep

import requests
from dotenv import load_dotenv

load_dotenv()

DDNS_WG_URL = os.environ.get("DDNS_UPDATE_WG")
DDNS_NC_URL = os.environ.get("DDNS_UPDATE_NC")
DDNS_CR_URL = os.environ.get("DDNS_UPDATE_CR")
DDNS_GT_URL = os.environ.get("DDNS_UPDATE_GT")
GT_HOST = os.environ.get("GT_HOST")
MY_IP_URL = "http://ifconfig.me"

domains = [DDNS_NC_URL, DDNS_WG_URL, DDNS_CR_URL, DDNS_GT_URL]

while True:
    try:
        current_ip = requests.get(MY_IP_URL, timeout=15).text
        registered_ip = socket.gethostbyname(GT_HOST)
    except Exception as e:
        print(f"Error while retrieving current IP! Error:\n\n{e}")
    else:
        if current_ip != registered_ip:
            print(f"IP change detected (was {current_ip} - now {registered_ip})! Updating DNS entries...")
            for item in domains:
                try:
                    response = requests.get(item)
                    print(f"Response from endpoint:\n\n{response.text}")
                except Exception as e:
                    print(f"Error while updating DDNS entry! Error:\n\n{e}")
                else:
                    print("DNS entry updated!")
        else:
            print(f"No IP change detected (currently {current_ip}).")
    finally:
        print("Sleeping 5 minutes...")
        sleep(300)