from core.apps.shared.models import OptionsModel
from typing import Optional
from django.utils.translation import gettext_lazy as _


def get_config(settings: str, key: str, default=None) -> Optional[str]:
    config = OptionsModel.objects.filter(settings__key=settings, key=key)
    if not config.exists():
        return default
    return config.first().value


def get_exchange_rate():
    exchange_rate = get_config("currency", "exchange_rate")
    if exchange_rate is None:
        raise Exception(_("USD kursi kiritilmagan iltimos adminga murojat qiling"))
    return float(exchange_rate[0])