import json


DTYPES = {
    "float": "ai",
    "int": "longin",
    "bool": "bi",
    "str": "stringin"
}


def load_data(fn):
    try:
        with open(fn) as f:
            data = json.load(f)
    except FileNotFoundError:
        data = {}
    return data

def save_data(data, fn):
    with open(fn, "w") as f:
        json.dump(data, f)

def mk_db(data, fn):
    with open(fn, "w") as f:
        for name, dtyp in data.items():
            dtyp = DTYPES[dtyp]
            entry = f'record({dtyp}, "$(SYSTEM):{name}") {{}}'
            f.write(entry)
            f.write("\n")