# -*- coding: utf-8 -*-
#
# ITerativ GmbH
# http://www.iterativ.ch/
#
# Copyright (c) 2019 ITerativ GmbH. All rights reserved.
#
# Created on 2019-10-08
# @author: chrigu <christian.cueni@iterativ.ch>
import graphene
from django.conf import settings
from graphene import relay

from core.hep_client import HepClient, HepClientException, HepClientUnauthorizedException
from users.user_signup_login_handler import handle_user_and_verify_products


class PublicFieldError(graphene.ObjectType):
    code = graphene.String()


class RegistrationError(graphene.ObjectType):
    field = graphene.String()


class Registration(relay.ClientIDMutation):
    class Input:
        confirmation_key = graphene.String()

    success = graphene.Boolean()
    errors = graphene.List(RegistrationError)  # todo: change for consistency

    @classmethod
    def mutate_and_get_payload(cls, root, info, **kwargs):
        confirmation_key = kwargs.get('confirmation_key')

        hep_client = HepClient()

        try:
            user_data = hep_client.customer_activate(confirmation_key)
        except HepClientUnauthorizedException:
            return cls.return_login_error('invalid_credentials')
        except HepClientException:
            return cls.return_login_error('unknown_error')

        user, error_msg = handle_user_and_verify_products(user_data)

        if error_msg:
            return cls.return_login_error(error_msg)

        return cls(success=False, errors=[])

    @classmethod
    def return_login_error(cls, message):
        error = RegistrationError(field=message)
        return cls(success=False, errors=[error])


class RegistrationMutations:
    registration = Registration.Field()