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

from app.config import DATABASE_URL

engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
SessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False)


class Base(DeclarativeBase):
    pass


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


def init_db():
    from app import models  # noqa: F401

    Base.metadata.create_all(bind=engine)