from typing import Generator

from sqlalchemy import create_engine
from sqlalchemy.orm import DeclarativeBase, Session, sessionmaker

from config.settings import settings

engine = create_engine(
    settings.database_url,
    pool_pre_ping=True,
    pool_recycle=1800,
)
SessionLocal = sessionmaker(bind=engine)


class Base(DeclarativeBase):
    pass


def get_db() -> Generator[Session, None, None]:
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()