"""Product logic."""

from oto import response
from owsrequest import request as requests

from promo_player.constants import error
from promo_player.constants import service_name


def get_by_product_id(product_id):
    """Get a product by product_id from ows-digital-product.

    Args:
        product_id (int): the product ID.

    Returns:
        response.Response: containing the product dict.
    """
    path = '/product/audio/{product_id}'.format(product_id=product_id)

    result = requests.get(service_name.OWS_PRODUCT_DIGITAL, path)

    if result.status_code != 200:
        return response.create_error_response(
            status=result.status_code,
            code=error.ERROR_CODE_OWS_PRODUCT_REQUEST,
            message=result.json())

    return response.Response(result.json())


def get_artist_name(product_details):
    """Extract the artist name from the product details.

    Args:
        product_details (dict): the product

    Returns:
        str: the artist name or N/A if not found.
    """
    artists = product_details.get('product_artists', [])
    primary = []
    featuring = []

    for artist in artists:
        role = artist.get('role', None)
        name = artist.get('name', None)
        if name and role == 'primary_artist':
            primary.append(name)
        elif name and role == 'featuring':
            featuring.append(name)

    primary = ' & '.join(primary)
    featuring = ' & '.join(featuring)

    if primary and featuring:
        return '{0} ft. {1}'.format(primary, featuring)
    elif primary:
        return primary

    return 'N/A'