"""Handler utility functions."""

from analytics.models import streams as streams_model


def parse_date_values(request_args):
    """Return the date values from the request query string."""
    start_date = request_args.get('from_date')
    end_date = request_args.get('to_date')
    return start_date, end_date


def parse_artist_store_and_isrc_values(request_args, default_store_ids=None):
    """Return the artist_ids, store_ids and isrcs from request query string."""
    # TODO  remove the default_store_id logic once the calls to this endpoint
    # TODO  always contain one or multiple storeids
    artist_ids = request_args.get('artist_ids')
    if artist_ids:
        artist_ids = artist_ids.split(',')
    isrcs = request_args.get('isrcs')
    if isrcs:
        isrcs = isrcs.split(',')
    if request_args.get('stores', '') == '':
        if not default_store_ids:
            store_ids = streams_model.Store.get_available_stores()
        else:
            store_ids = default_store_ids
    else:
        store_ids = request_args.get('stores').split(',')
    return artist_ids, store_ids, isrcs