from flask import Blueprint, current_app
from flask_jwt_extended import jwt_required, create_access_token
from flask_apispec import use_kwargs, marshal_with

from api.exceptions import BadRequestException
import api.constants as constants

from .models import TokenResponse
from .serializers import login_schema, token_response_schema

blueprint = Blueprint('login', __name__)


@blueprint.route('', methods=['POST'])
@jwt_required(optional=True)
@use_kwargs(login_schema)
@marshal_with(token_response_schema)
def login_user(username, password, **kwargs):
    if username == constants.API_USER and password == current_app.config[constants.API_PASS]:
        return TokenResponse(create_access_token(identity=username, fresh=True))
    else:
        raise BadRequestException("Wrong combination of username and password")