from sqlalchemy.orm import Session

from app.models.system import AppConfig


def get_config(db: Session, key: str, default: str = "") -> str:
    row = db.query(AppConfig).filter(AppConfig.key == key).first()
    return row.value if row else default


def set_config(db: Session, key: str, value: str) -> None:
    row = db.query(AppConfig).filter(AppConfig.key == key).first()
    if row:
        row.value = value
    else:
        db.add(AppConfig(key=key, value=value))
    db.commit()