from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, DeclarativeBase
from app.config import get_settings

settings = get_settings()

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


class Base(DeclarativeBase):
    pass


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


def init_db():
    """Create all tables."""
    # import models so SQLAlchemy registers them
    from app.models import admin_user, upstream, snapshot, webhook_config, notification_log, custom_page  # noqa: F401
    Base.metadata.create_all(bind=engine)