# Copyright 2019 Google LLC
#
# 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.

# NOTE: This class is auto generated by the elixir code generator program.
# Do not edit the class manually.

defmodule GoogleApi.Spanner.V1.Model.Policy do
  @moduledoc """
  Defines an Identity and Access Management (IAM) policy. It is used to
  specify access control policies for Cloud Platform resources.


  A `Policy` consists of a list of `bindings`. A `binding` binds a list of
  `members` to a `role`, where the members can be user accounts, Google groups,
  Google domains, and service accounts. A `role` is a named list of permissions
  defined by IAM.

  **JSON Example**

      {
        "bindings": [
          {
            "role": "roles/owner",
            "members": [
              "user:mike@example.com",
              "group:admins@example.com",
              "domain:google.com",
              "serviceAccount:my-other-app@appspot.gserviceaccount.com"
            ]
          },
          {
            "role": "roles/viewer",
            "members": ["user:sean@example.com"]
          }
        ]
      }

  **YAML Example**

      bindings:
      - members:
        - user:mike@example.com
        - group:admins@example.com
        - domain:google.com
        - serviceAccount:my-other-app@appspot.gserviceaccount.com
        role: roles/owner
      - members:
        - user:sean@example.com
        role: roles/viewer


  For a description of IAM and its features, see the
  [IAM developer's guide](https://cloud.google.com/iam/docs).

  ## Attributes

  *   `bindings` (*type:* `list(GoogleApi.Spanner.V1.Model.Binding.t)`, *default:* `nil`) - Associates a list of `members` to a `role`.
      `bindings` with no members will result in an error.
  *   `etag` (*type:* `String.t`, *default:* `nil`) - `etag` is used for optimistic concurrency control as a way to help
      prevent simultaneous updates of a policy from overwriting each other.
      It is strongly suggested that systems make use of the `etag` in the
      read-modify-write cycle to perform policy updates in order to avoid race
      conditions: An `etag` is returned in the response to `getIamPolicy`, and
      systems are expected to put that etag in the request to `setIamPolicy` to
      ensure that their change will be applied to the same version of the policy.

      If no `etag` is provided in the call to `setIamPolicy`, then the existing
      policy is overwritten.
  *   `version` (*type:* `integer()`, *default:* `nil`) - Deprecated.
  """

  use GoogleApi.Gax.ModelBase

  @type t :: %__MODULE__{
          :bindings => list(GoogleApi.Spanner.V1.Model.Binding.t()),
          :etag => String.t(),
          :version => integer()
        }

  field(:bindings, as: GoogleApi.Spanner.V1.Model.Binding, type: :list)
  field(:etag)
  field(:version)
end

defimpl Poison.Decoder, for: GoogleApi.Spanner.V1.Model.Policy do
  def decode(value, options) do
    GoogleApi.Spanner.V1.Model.Policy.decode(value, options)
  end
end

defimpl Poison.Encoder, for: GoogleApi.Spanner.V1.Model.Policy do
  def encode(value, options) do
    GoogleApi.Gax.ModelBase.encode(value, options)
  end
end