# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright The LanceDB Authors

"""Utility functions for namespace operations."""

from typing import Optional


def _normalize_create_namespace_mode(mode: Optional[str]) -> Optional[str]:
    """Normalize create namespace mode to lowercase (API expects lowercase)."""
    if mode is None:
        return None
    return mode.lower()


def _normalize_drop_namespace_mode(mode: Optional[str]) -> Optional[str]:
    """Normalize drop namespace mode to uppercase (API expects uppercase)."""
    if mode is None:
        return None
    return mode.upper()


def _normalize_drop_namespace_behavior(behavior: Optional[str]) -> Optional[str]:
    """Normalize drop namespace behavior to uppercase (API expects uppercase)."""
    if behavior is None:
        return None
    return behavior.upper()