from typing import Generator
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker

from .settings import get_settings

settings = get_settings()
engine = create_engine(
    settings.database_url,
    pool_pre_ping=True,
    pool_recycle=1800,
    pool_timeout=5,
    future=True,
)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine, future=True)

def get_db() -> Generator:
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()