"""Utils module providing helper functions related to Stream."""

from notifications.constants.stream import DELIMITER, FEED_ID_ENCODING


def get_user_feed_id(user_id: str, user_feed_id: str | None) -> str:
    """Select and format the user feed id to use.

    Args:
        user_id (str): the orchard user id
        user_feed_id (str): the user feed id to use instead of the user id

    Returns:
        str: the formatted user feed id

    """
    if not user_feed_id:
        return user_id.replace(':', DELIMITER)

    for key, value in FEED_ID_ENCODING.items():
        user_feed_id = user_feed_id.replace(key, value)

    return user_feed_id


def get_profile_feed_id(namespace: str, identifier: int | str) -> str:
    """Generate feed_id for profile namespaced feeds.

    - Join namespace and identifier with DELIMITER
    - Replace ":" with DELIMITER

    Args:
        namespace (str): namespace (ex. InsightsProfile or GlobalParticipant)
        identifier (int|str): either particpant or profile id

    Returns:
        str: formatted feed id

    """
    result = DELIMITER.join([namespace, str(identifier)])
    result = result.replace(':', DELIMITER)
    return result