"""Interface to the ows-carveouts microservice.

Used for instant grats stores validation.
"""

from oto import response
from owsrequest import request

from backend.constants import error
from backend.constants import services
from backend.utils import model_utils


def get_stores_allowed_for_instant_grats():
    """Get list of stores allowed for Instant Grats.

    Returns:
        response.Response: list of stores data in format
                            [{'id': store_id, 'name': store_name}, ...]
    """
    endpoint = '/stores/grats'
    carveouts_get_response = request.get(services.OWS_CARVEOUTS, endpoint)

    if carveouts_get_response.status_code == 200:
        result = []
        for store_id, store_name in carveouts_get_response.json().items():
            result.append({'id': store_id, 'name': store_name})
        return response.Response(message=result)

    return model_utils.process_error_response(
        carveouts_get_response, code=error.OWS_CARVEOUTS_ERROR_CODE)