#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

from keystoneclient import base
from keystoneclient import utils


class Token(base.Resource):
    def __repr__(self):
        return "<Token %s>" % self._info

    @property
    def id(self):
        return self._info['token']['id']

    @property
    def expires(self):
        return self._info['token']['expires']

    @property
    def tenant(self):
        return self._info['token'].get('tenant')


class TokenManager(base.Manager):
    resource_class = Token

    @utils.positional(enforcement=utils.positional.WARN)
    def authenticate(self, username=None, tenant_id=None, tenant_name=None,
                     password=None, token=None, return_raw=False):
        if token:
            params = {"auth": {"token": {"id": token}}}
        elif username and password:
            params = {"auth": {"passwordCredentials": {"username": username,
                                                       "password": password}}}
        else:
            raise ValueError('A username and password or token is required.')
        if tenant_id:
            params['auth']['tenantId'] = tenant_id
        elif tenant_name:
            params['auth']['tenantName'] = tenant_name
        reset = 0
        if self.api.management_url is None:
            reset = 1
            self.api.management_url = self.api.auth_url
        token_ref = self._create('/tokens', params, "access",
                                 return_raw=return_raw, log=False)
        if reset:
            self.api.management_url = None
        return token_ref

    def delete(self, token):
        return self._delete("/tokens/%s" % base.getid(token))

    def endpoints(self, token):
        return self._get("/tokens/%s/endpoints" % base.getid(token), "token")