#!/usr/bin/env python3
# Lancement: python cpu_monitor.py

from datetime import datetime
import time

import psutil


def format_line() -> str:
    now = datetime.now().strftime("%H:%M:%S")
    cpu = psutil.cpu_percent(interval=None)
    ram = psutil.virtual_memory().percent
    return f"{now} | CPU: {cpu:5.1f}% | RAM: {ram:5.1f}%"


def main() -> None:
    print("Monitoring CPU/RAM. Ctrl+C pour arrêter.")
    try:
        while True:
            print(format_line())
            time.sleep(2)
    except KeyboardInterrupt:
        print("\nArrêt propre.")


if __name__ == "__main__":
    main()