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

from .config import get_settings


settings = get_settings()
Base = declarative_base()

connect_args = {"check_same_thread": False} if settings.is_sqlite else {}
engine = create_engine(settings.database_url, future=True, connect_args=connect_args)
SessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False, expire_on_commit=False)


def init_db() -> None:
    if settings.sqlite_directory is not None:
        settings.sqlite_directory.mkdir(parents=True, exist_ok=True)

    from . import models

    Base.metadata.create_all(bind=engine)


def get_session():
    session = SessionLocal()
    try:
        yield session
    finally:
        session.close()