from django.conf import settings

from apps.providers.adapters.mvp_provider import MvpDemoProviderAdapter
from apps.providers.exceptions import ProviderNotFoundError


PROVIDER_REGISTRY = {
    MvpDemoProviderAdapter.namespace: MvpDemoProviderAdapter,
}


def get_provider(namespace: str | None = None):
    provider_namespace = namespace or settings.PROVIDER_DEFAULT_NAMESPACE
    provider_cls = PROVIDER_REGISTRY.get(provider_namespace)
    if not provider_cls:
        raise ProviderNotFoundError(f"Unknown provider namespace: {provider_namespace}")
    return provider_cls()