#!/usr/bin/env python3
import os
import re
import sys

def sanitize(name: str) -> str:
    slug = name.lower()
    slug = re.sub(r'[^a-z0-9_-]+', '-', slug)
    slug = slug.lstrip('-_')
    if not slug:
        slug = 'mynetwork'
    if not re.match(r'^[a-z0-9]', slug):
        slug = f'n{slug}'
    return slug

def main() -> None:
    base = sys.argv[1] if len(sys.argv) > 1 else os.getcwd()
    resolved = os.path.abspath(base)
    name = os.path.basename(resolved)
    print(sanitize(name))

if __name__ == '__main__':
    main()