from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
from .config import get_settings

settings = get_settings()

# SQLite needs check_same_thread=False for FastAPI
if settings.USE_SQLITE:
    engine = create_engine(
        settings.DATABASE_URL,
        connect_args={"check_same_thread": False}
    )
else:
    engine = create_engine(settings.DATABASE_URL)

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

Base = declarative_base()


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