"""Interface for the ows-account microservice."""

from functools import lru_cache

from oto import response

from owsrequest import request as requests

from feature_fm.constants.error import ERROR_CODE_OWS_ACCOUNT_REQUEST
from feature_fm.constants.ows_services import CONTENT_TYPE
from feature_fm.constants.ows_services import DEFAULT_CURRENCY_CODE
from feature_fm.constants.ows_services import OWS_ACCOUNT


def get_enabled_features_for_vendor(vendor_id, correlation_id=None):
    """Get a list of enabled features for a vendor.

    Args:
        vendor_id (int): The vendor id.
        correlation_id (str): the correlation ID.

    Returns:
        response.Response: containing the list of features.
    """
    path = '/vendor/{0}/features'.format(vendor_id)

    result = requests.get(
        OWS_ACCOUNT,
        path,
        headers={'Content-Type': CONTENT_TYPE},
        correlation_id=correlation_id)

    if result.status_code != 200:
        return response.create_error_response(
            status=result.status_code,
            code=ERROR_CODE_OWS_ACCOUNT_REQUEST,
            message=result.text)

    return response.Response(result.json())


def get_vendor_currency_code(vendor_id):
    """Get the currency code for a single vendor.

    Args:
        vendor_id (int): The vendor id.
        correlation_id (str): the correlation ID.

    Returns:
        response.Response: contains a dict that maps vendor ids to codes.
    """
    vendor_currency_codes = get_vendor_currency_codes()
    if not vendor_currency_codes:
        get_vendor_currency_codes.cache_clear()
        vendor_currency_codes = get_vendor_currency_codes()

    if not vendor_currency_codes:
        return vendor_currency_codes

    currency_dict = vendor_currency_codes

    if not currency_dict.get(vendor_id):
        return DEFAULT_CURRENCY_CODE

    return currency_dict[vendor_id]


@lru_cache(1000)
def get_vendor_currency_codes():
    """Get all currency codes for all vendors.

    Returns:
        response.Response: contains a dict that maps vendor ids to codes.
    """
    path = '/vendor-currency-codes'

    result = requests.get(
        OWS_ACCOUNT,
        path,
        headers={'Content-Type': CONTENT_TYPE})

    if result.status_code != 200:
        return response.create_error_response(
            status=result.status_code,
            code=ERROR_CODE_OWS_ACCOUNT_REQUEST,
            message=result.text)

    vendor_currency_codes = {}

    for item in result.json()['items']:
        vendor_currency_codes[item['vendor_id']] = item['currency_code']

    return vendor_currency_codes