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

from app.core.config import settings


class Base(DeclarativeBase):
    pass


engine = create_engine(
    settings.DATABASE_URL,
    pool_pre_ping=True,
    pool_recycle=settings.DATABASE_POOL_RECYCLE_SECONDS,
)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine, class_=Session)


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