#
# 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.

import six

from pycadf import cadftaxonomy


def convert_req_action(method, details=None):
    """Maps standard HTTP methods to equivalent CADF action

    :param method: HTTP request method
    :param details: Extra details to append to action.
    """

    mapping = {'get': cadftaxonomy.ACTION_READ,
               'head': cadftaxonomy.ACTION_READ,
               'post': cadftaxonomy.ACTION_CREATE,
               'put': cadftaxonomy.ACTION_UPDATE,
               'delete': cadftaxonomy.ACTION_DELETE,
               'patch': cadftaxonomy.ACTION_UPDATE,
               'options': cadftaxonomy.ACTION_READ,
               'trace': 'capture'}

    action = None
    if isinstance(method, six.string_types):
        action = mapping.get(method.lower())
        if action and isinstance(details, six.string_types):
            action += '/%s' % details
    return action or cadftaxonomy.UNKNOWN