"""Model for ows-artist."""

import logging

import requests

import config
import const


def get_artist_document(artist_id):
    """Get information about artist from ows-artist.

    Args:
        artist_id (int): artist id.

    Returns:
        dict: information about artist.

    """
    result = {}
    if not artist_id:
        return result
    url = const.SERVICE_URL.format(
        environment=config.ENVIRONMENT,
        service_name=const.OWS_ARTIST_SERVICE_NAME,
        path=const.OWS_ARTIST_DOCUMENT_ENDPOINT.format(artist_id))
    response = requests.get(url)
    if response.status_code not in (200, 404):
        logging.exception(
            'Failed to get artist information from ows-artist.')
        raise Exception(const.OWS_ARTIST_ERROR)
    if response.status_code == 200:
        result = response.json()
    return result