import json
from argparse import ArgumentParser

from user_agent import generate_navigator_js


def script_ua():
    # type: () -> None
    parser = ArgumentParser()
    parser.add_argument("-e", "--extended", action="store_true", default=False)
    parser.add_argument("-o", "--os")
    parser.add_argument("-n", "--navigator")
    parser.add_argument("-d", "--device-type")
    opts = parser.parse_args()
    nav = generate_navigator_js(
        os=opts.os, navigator=opts.navigator, device_type=opts.device_type
    )
    if opts.extended:
        print(json.dumps(nav, indent=2))
    else:
        print(nav["userAgent"])