import hjson
from typing import Dict
from datetime import datetime


def load_config(config_path: str) -> Dict:
    with open(config_path, "r") as f:
        config = hjson.load(f)
    return dict(config)


def expand_filename(filename: str) -> str:
    # expand %T
    res = filename.replace("%T", datetime.now().strftime("%Y%m%d_%H%M%S"))
    # expand %D
    return res.replace("%D", datetime.now().strftime("%Y%m%d"))