import os
import time
import smtplib
from email.mime.text import MIMEText

def send_email_alert(ip_address):
    smtp_server = "mail.smtp2go.com"
    smtp_port = 587
    smtp_username = "pinger"
    smtp_password = "Qix46X7aPhvIZwrk"
    sender_email = "pinger@pattinson.org"
    receiver_email = "james@pattinson.org"
    subject = "ALERT: EGFH gateway unreachable"
    body = f"The server with IP {ip_address} has been unreachable for over 5 minutes."
    
    msg = MIMEText(body)
    msg["Subject"] = subject
    msg["From"] = sender_email
    msg["To"] = receiver_email
    
    try:
        with smtplib.SMTP(smtp_server, smtp_port) as server:
            server.starttls()
            server.login(smtp_username, smtp_password)
            server.sendmail(sender_email, receiver_email, msg.as_string())
        print("Alert email sent.")
    except Exception as e:
        print(f"Failed to send email: {e}")

def ping_host(ip_address):
    response = os.system(f"ping -c 1 {ip_address} > /dev/null 2>&1")
    return response == 0

def monitor(ip_address, timeout=300, check_interval=10):
    downtime_start = None
    print(f"Starting monitor process on {ip_address}")
    
    while True:
        if ping_host(ip_address):
            downtime_start = None  # Reset downtime if host is reachable
        else:
            if downtime_start is None:
                downtime_start = time.time()
            elif time.time() - downtime_start > timeout:
                send_email_alert(ip_address)
                downtime_start = None  # Reset after sending email
                time.sleep(timeout)  # Avoid spamming alerts
        
        time.sleep(check_interval)

if __name__ == "__main__":
    monitor("192.168.24.1")  # Replace with the actual IP