# -*- coding: utf-8 -*-
#
# ITerativ GmbH
# http://www.iterativ.ch/
#
# Copyright (c) 2019 ITerativ GmbH. All rights reserved.
#
# Created on 2019-10-01
# @author: chrigu <christian.cueni@iterativ.ch>
import re

import graphene
from django.contrib.auth import authenticate, login
from graphene import relay


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


class MutationError(graphene.ObjectType):
    field = graphene.String()
    errors = graphene.List(FieldError)


class Login(relay.ClientIDMutation):
    class Input:
        username_input = graphene.String()
        password_input = graphene.String()

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

    @classmethod
    def mutate_and_get_payload(cls, root, info, **kwargs):

        user = authenticate(username=kwargs.get('username_input'), password=kwargs.get('password_input'))
        if user is not None:
            login(info.context, user)
            return cls(success=True, errors=[])
        else:
            return cls(success=False, errors=['invalid_credentials'])


class UserMutations:
    login = Login.Field()