import os
import platform

def get_os_type(): return platform.uname().system.lower()

def is_linux(): return get_os_type() == "linux"
def is_macos(): return get_os_type() == "darwin"
def is_windows(): return get_os_type() == "windows"

def is_debian(): return os.system('apt --version > /dev/null 2>&1') >> 8 == 0
def is_rhel(): return os.system('dnf --version > /dev/null 2>&1') >> 8 == 0

def check_os():
    if is_linux() or is_macos() or is_windows():
        print(f"Running on {get_os_type()}")
    else:
        print(f"Unsupported OS family: {get_os_type()}")
        exit(1)

if __name__ == "__main__":
    check_os()
    print(f'is_windows: {is_windows()}, is_macos: {is_macos()}, is_linux: {is_linux()}, is_debian: {is_debian()}, is_rhel: {is_rhel()}')