text: # -*- coding: utf-8 -*-
  #
  # The MIT License (MIT)
  #
  # Copyright (C) 2017 Marcos Pereira <marcospereira.mpj@gmail.com>
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy of
  # this software and associated documentation files (the "Software"), to deal in
  # the Software without restriction, including without limitation the rights to
  # use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
  # the Software, and to permit persons to whom the Software is furnished to do so,
  # subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in all
  # copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
  # FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
  # COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  # IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  
  from ..exceptions import KeycloakAuthorizationConfigError
  
  
  class Policy:
      """
      A policy defines the conditions that must be satisfied to grant access to an object.
      Unlike permissions, you do not specify the object being protected but rather the conditions
      that must be satisfied for access to a given object (for example, resource, scope, or both).
      Policies are strongly related to the different access control mechanisms (ACMs) that you can
      use to protect your resources. With policies, you can implement strategies for attribute-based
      access control (ABAC), role-based access control (RBAC), context-based access control, or any
      combination of these.
  
      https://keycloak.gitbooks.io/documentation/authorization_services/topics/policy/overview.html
  
      """
  
      def __init__(self, name, type, logic, decision_strategy):
          self._name = name
          self._type = type
          self._logic = logic
          self._decision_strategy = decision_strategy
          self._roles = []
          self._permissions = []
  
      def __repr__(self):
          return "<Policy: %s (%s)>" % (self.name, self.type)
  
      def __str__(self):
          return "Policy: %s (%s)" % (self.name, self.type)
  
      @property
      def name(self):
          return self._name
  
      @name.setter
      def name(self, value):
          self._name = value
  
      @property
      def type(self):
          return self._type
  
      @type.setter
      def type(self, value):
          self._type = value
  
      @property
      def logic(self):
          return self._logic
  
      @logic.setter
      def logic(self, value):
          self._logic = value
  
      @property
      def decision_strategy(self):
          return self._decision_strategy
  
      @decision_strategy.setter
      def decision_strategy(self, value):
          self._decision_strategy = value
  
      @property
      def roles(self):
          return self._roles
  
      @property
      def permissions(self):
          return self._permissions
  
      def add_role(self, role):
          """
          Add keycloak role in policy.
  
          :param role: keycloak role.
          :return:
          """
          if self.type != "role":
              raise KeycloakAuthorizationConfigError(
                  "Can't add role. Policy type is different of role"
              )
          self._roles.append(role)
  
      def add_permission(self, permission):
          """
          Add keycloak permission in policy.
  
          :param permission: keycloak permission.
          :return:
          """
          self._permissions.append(permission)
  