import argparse
import json
import sys

g_args = None


def read_json():
    global g_args
    json_path = g_args.config
    if json_path is None:
        print("specify json path")
        sys.exit()
    with open(json_path, "r", encoding="utf-8") as json_f:
        js = json.load(json_f)
        return js


def get_config():
    global g_args
    return g_args


def init_config():
    global g_args
    if g_args is not None:
        return g_args
    parser = argparse.ArgumentParser(description="Help")
    parser.add_argument("-config", type=str)
    _args = parser.parse_args()
    g_args = _args
    return _args


if __name__ == "__main__":
    args = init_config()
    print(args.config)