from __future__ import annotations

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

from .config import get_settings

settings = get_settings()

connect_args: dict = {}
if settings.database_url.startswith("sqlite"):
    connect_args["check_same_thread"] = False

engine = create_engine(
    settings.database_url, pool_pre_ping=True, future=True, connect_args=connect_args
)
SessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False)


class Base(DeclarativeBase):
    pass


def get_db():
    db: Session = SessionLocal()
    try:
        yield db
    finally:
        db.close()