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

from app.config import settings

engine = create_engine(
    settings.database_url,
    connect_args={"check_same_thread": False},
)


@event.listens_for(engine, "connect")
def set_sqlite_pragma(dbapi_conn, _):
    cursor = dbapi_conn.cursor()
    cursor.execute("PRAGMA foreign_keys=ON")
    cursor.close()


class Base(DeclarativeBase):
    pass


SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)


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