from time import sleep
from requests import get


def cache(my_function):
    cached_data = {}
    def wrapper(*args, **kwargs):
        cache_key = args, tuple(sorted(kwargs.items()))
        nonlocal cached_data
        if cache_key not in cached_data:
            result = my_function(*args, **kwargs)
            cached_data[cache_key] = result

        return cached_data[cache_key]

    return wrapper


@cache
def get_currency_data(code: str):
    sleep(5)
    response = get(f"https://api.nbp.pl/api/exchangerates/rates/C/{code}/")
    return response.json()

@cache
def sum_two_numbers(a, b):
    return a + b

# my_function = cache(get_currency_data)
# print(my_function("EUR"))

# result = cache(get_currency_data)("EUR")
# print(result)

eur = get_currency_data("EUR")
print(eur)


eur = get_currency_data("EUR")
print(eur)

usd = get_currency_data("USD")
print(usd)