"""ISRC logic."""
from oto import response

from backend.models import isrc as isrc_model
from backend.models.track_persister import TrackPersister


def is_isrc_in_use(track_type, isrc):
    """Determine if an isrc is in use."""
    track = TrackPersister.get_by_isrc_and_type(isrc, track_type)
    used_by_product_id = None
    if track:
        used_by_product_id = track['product_id']
    return response.Response(
        message={'used': bool(track), 'used_by_product_id': used_by_product_id}
    )


def get_isrc_usage_stats(product_id):
    """Get ISRC usage stats."""
    return isrc_model.get_isrc_usage_stats(product_id)


def get_tracks_with_isrc_logic(isrc, limit, offset):
    """Get a paginated list of tracks with the same ISRC.

    Args:
        isrc (str): The ISRC to search for.
        limit (int): The number of tracks to return per page.
        offset (int): The offset to return a page of results from.

    Returns:
        dict: A standard pagination object with pagination.total_records
            and items[].
    """
    return isrc_model.get_tracks_with_isrc(isrc, limit, offset)