#!/usr/bin/env python3
# Zabbix External Script: Domain Expiration Check
# Usage: check_domain.py <domain>
# Requires: pip3 install python-whois

import sys
import whois
from datetime import datetime

if len(sys.argv) < 2:
    print("-1") # Missing argument
    sys.exit(1)

domain = sys.argv[1]

try:
    w = whois.whois(domain)
    
    # Handle list of dates (some registries return list)
    expiration_date = w.expiration_date
    if isinstance(expiration_date, list):
        expiration_date = expiration_date[0]
        
    if expiration_date is None:
        print("-2") # Retrieval failed
        sys.exit()

    now = datetime.now()
    delta = expiration_date - now
    
    print(delta.days)

except Exception as e:
    # print(e) # Debug
    print("-1") # Error