from __future__ import annotations

from collections.abc import Generator

from config.settings import Settings, get_settings
from services.security import JWTSettings
from services.unit_of_work import UnitOfWork


def get_unit_of_work() -> Generator[UnitOfWork, None, None]:
    """FastAPI dependency yielding a unit-of-work instance."""

    with UnitOfWork() as uow:
        yield uow


def get_application_settings() -> Settings:
    """Provide cached application settings instance."""

    return get_settings()


def get_jwt_settings() -> JWTSettings:
    """Provide JWT runtime configuration derived from settings."""

    return get_settings().jwt_settings()