{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE StrictData #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# OPTIONS_GHC -fno-warn-unused-binds #-}
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}

-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- |
-- Module      : Amazonka.CloudDirectory.ListPolicyAttachments
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Returns all of the @ObjectIdentifiers@ to which a given policy is
-- attached.
--
-- This operation returns paginated results.
module Amazonka.CloudDirectory.ListPolicyAttachments
  ( -- * Creating a Request
    ListPolicyAttachments (..),
    newListPolicyAttachments,

    -- * Request Lenses
    listPolicyAttachments_consistencyLevel,
    listPolicyAttachments_maxResults,
    listPolicyAttachments_nextToken,
    listPolicyAttachments_directoryArn,
    listPolicyAttachments_policyReference,

    -- * Destructuring the Response
    ListPolicyAttachmentsResponse (..),
    newListPolicyAttachmentsResponse,

    -- * Response Lenses
    listPolicyAttachmentsResponse_nextToken,
    listPolicyAttachmentsResponse_objectIdentifiers,
    listPolicyAttachmentsResponse_httpStatus,
  )
where

import Amazonka.CloudDirectory.Types
import qualified Amazonka.Core as Core
import qualified Amazonka.Core.Lens.Internal as Lens
import qualified Amazonka.Data as Data
import qualified Amazonka.Prelude as Prelude
import qualified Amazonka.Request as Request
import qualified Amazonka.Response as Response

-- | /See:/ 'newListPolicyAttachments' smart constructor.
data ListPolicyAttachments = ListPolicyAttachments'
  { -- | Represents the manner and timing in which the successful write or update
    -- of an object is reflected in a subsequent read operation of that same
    -- object.
    consistencyLevel :: Prelude.Maybe ConsistencyLevel,
    -- | The maximum number of items to be retrieved in a single call. This is an
    -- approximate number.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | The pagination token.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The Amazon Resource Name (ARN) that is associated with the Directory
    -- where objects reside. For more information, see arns.
    directoryArn :: Prelude.Text,
    -- | The reference that identifies the policy object.
    policyReference :: ObjectReference
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListPolicyAttachments' with all optional fields omitted.
--
-- Use <https://hackage.haskell.org/package/generic-lens generic-lens> or <https://hackage.haskell.org/package/optics optics> to modify other optional fields.
--
-- The following record fields are available, with the corresponding lenses provided
-- for backwards compatibility:
--
-- 'consistencyLevel', 'listPolicyAttachments_consistencyLevel' - Represents the manner and timing in which the successful write or update
-- of an object is reflected in a subsequent read operation of that same
-- object.
--
-- 'maxResults', 'listPolicyAttachments_maxResults' - The maximum number of items to be retrieved in a single call. This is an
-- approximate number.
--
-- 'nextToken', 'listPolicyAttachments_nextToken' - The pagination token.
--
-- 'directoryArn', 'listPolicyAttachments_directoryArn' - The Amazon Resource Name (ARN) that is associated with the Directory
-- where objects reside. For more information, see arns.
--
-- 'policyReference', 'listPolicyAttachments_policyReference' - The reference that identifies the policy object.
newListPolicyAttachments ::
  -- | 'directoryArn'
  Prelude.Text ->
  -- | 'policyReference'
  ObjectReference ->
  ListPolicyAttachments
newListPolicyAttachments
  pDirectoryArn_
  pPolicyReference_ =
    ListPolicyAttachments'
      { consistencyLevel =
          Prelude.Nothing,
        maxResults = Prelude.Nothing,
        nextToken = Prelude.Nothing,
        directoryArn = pDirectoryArn_,
        policyReference = pPolicyReference_
      }

-- | Represents the manner and timing in which the successful write or update
-- of an object is reflected in a subsequent read operation of that same
-- object.
listPolicyAttachments_consistencyLevel :: Lens.Lens' ListPolicyAttachments (Prelude.Maybe ConsistencyLevel)
listPolicyAttachments_consistencyLevel = Lens.lens (\ListPolicyAttachments' {consistencyLevel} -> consistencyLevel) (\s@ListPolicyAttachments' {} a -> s {consistencyLevel = a} :: ListPolicyAttachments)

-- | The maximum number of items to be retrieved in a single call. This is an
-- approximate number.
listPolicyAttachments_maxResults :: Lens.Lens' ListPolicyAttachments (Prelude.Maybe Prelude.Natural)
listPolicyAttachments_maxResults = Lens.lens (\ListPolicyAttachments' {maxResults} -> maxResults) (\s@ListPolicyAttachments' {} a -> s {maxResults = a} :: ListPolicyAttachments)

-- | The pagination token.
listPolicyAttachments_nextToken :: Lens.Lens' ListPolicyAttachments (Prelude.Maybe Prelude.Text)
listPolicyAttachments_nextToken = Lens.lens (\ListPolicyAttachments' {nextToken} -> nextToken) (\s@ListPolicyAttachments' {} a -> s {nextToken = a} :: ListPolicyAttachments)

-- | The Amazon Resource Name (ARN) that is associated with the Directory
-- where objects reside. For more information, see arns.
listPolicyAttachments_directoryArn :: Lens.Lens' ListPolicyAttachments Prelude.Text
listPolicyAttachments_directoryArn = Lens.lens (\ListPolicyAttachments' {directoryArn} -> directoryArn) (\s@ListPolicyAttachments' {} a -> s {directoryArn = a} :: ListPolicyAttachments)

-- | The reference that identifies the policy object.
listPolicyAttachments_policyReference :: Lens.Lens' ListPolicyAttachments ObjectReference
listPolicyAttachments_policyReference = Lens.lens (\ListPolicyAttachments' {policyReference} -> policyReference) (\s@ListPolicyAttachments' {} a -> s {policyReference = a} :: ListPolicyAttachments)

instance Core.AWSPager ListPolicyAttachments where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listPolicyAttachmentsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listPolicyAttachmentsResponse_objectIdentifiers
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listPolicyAttachments_nextToken
          Lens..~ rs
          Lens.^? listPolicyAttachmentsResponse_nextToken
          Prelude.. Lens._Just

instance Core.AWSRequest ListPolicyAttachments where
  type
    AWSResponse ListPolicyAttachments =
      ListPolicyAttachmentsResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          ListPolicyAttachmentsResponse'
            Prelude.<$> (x Data..?> "NextToken")
            Prelude.<*> ( x
                            Data..?> "ObjectIdentifiers"
                            Core..!@ Prelude.mempty
                        )
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

instance Prelude.Hashable ListPolicyAttachments where
  hashWithSalt _salt ListPolicyAttachments' {..} =
    _salt
      `Prelude.hashWithSalt` consistencyLevel
      `Prelude.hashWithSalt` maxResults
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` directoryArn
      `Prelude.hashWithSalt` policyReference

instance Prelude.NFData ListPolicyAttachments where
  rnf ListPolicyAttachments' {..} =
    Prelude.rnf consistencyLevel
      `Prelude.seq` Prelude.rnf maxResults
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf directoryArn
      `Prelude.seq` Prelude.rnf policyReference

instance Data.ToHeaders ListPolicyAttachments where
  toHeaders ListPolicyAttachments' {..} =
    Prelude.mconcat
      [ "x-amz-consistency-level" Data.=# consistencyLevel,
        "x-amz-data-partition" Data.=# directoryArn
      ]

instance Data.ToJSON ListPolicyAttachments where
  toJSON ListPolicyAttachments' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("MaxResults" Data..=) Prelude.<$> maxResults,
            ("NextToken" Data..=) Prelude.<$> nextToken,
            Prelude.Just
              ("PolicyReference" Data..= policyReference)
          ]
      )

instance Data.ToPath ListPolicyAttachments where
  toPath =
    Prelude.const
      "/amazonclouddirectory/2017-01-11/policy/attachment"

instance Data.ToQuery ListPolicyAttachments where
  toQuery = Prelude.const Prelude.mempty

-- | /See:/ 'newListPolicyAttachmentsResponse' smart constructor.
data ListPolicyAttachmentsResponse = ListPolicyAttachmentsResponse'
  { -- | The pagination token.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | A list of @ObjectIdentifiers@ to which the policy is attached.
    objectIdentifiers :: Prelude.Maybe [Prelude.Text],
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListPolicyAttachmentsResponse' with all optional fields omitted.
--
-- Use <https://hackage.haskell.org/package/generic-lens generic-lens> or <https://hackage.haskell.org/package/optics optics> to modify other optional fields.
--
-- The following record fields are available, with the corresponding lenses provided
-- for backwards compatibility:
--
-- 'nextToken', 'listPolicyAttachmentsResponse_nextToken' - The pagination token.
--
-- 'objectIdentifiers', 'listPolicyAttachmentsResponse_objectIdentifiers' - A list of @ObjectIdentifiers@ to which the policy is attached.
--
-- 'httpStatus', 'listPolicyAttachmentsResponse_httpStatus' - The response's http status code.
newListPolicyAttachmentsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListPolicyAttachmentsResponse
newListPolicyAttachmentsResponse pHttpStatus_ =
  ListPolicyAttachmentsResponse'
    { nextToken =
        Prelude.Nothing,
      objectIdentifiers = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The pagination token.
listPolicyAttachmentsResponse_nextToken :: Lens.Lens' ListPolicyAttachmentsResponse (Prelude.Maybe Prelude.Text)
listPolicyAttachmentsResponse_nextToken = Lens.lens (\ListPolicyAttachmentsResponse' {nextToken} -> nextToken) (\s@ListPolicyAttachmentsResponse' {} a -> s {nextToken = a} :: ListPolicyAttachmentsResponse)

-- | A list of @ObjectIdentifiers@ to which the policy is attached.
listPolicyAttachmentsResponse_objectIdentifiers :: Lens.Lens' ListPolicyAttachmentsResponse (Prelude.Maybe [Prelude.Text])
listPolicyAttachmentsResponse_objectIdentifiers = Lens.lens (\ListPolicyAttachmentsResponse' {objectIdentifiers} -> objectIdentifiers) (\s@ListPolicyAttachmentsResponse' {} a -> s {objectIdentifiers = a} :: ListPolicyAttachmentsResponse) Prelude.. Lens.mapping Lens.coerced

-- | The response's http status code.
listPolicyAttachmentsResponse_httpStatus :: Lens.Lens' ListPolicyAttachmentsResponse Prelude.Int
listPolicyAttachmentsResponse_httpStatus = Lens.lens (\ListPolicyAttachmentsResponse' {httpStatus} -> httpStatus) (\s@ListPolicyAttachmentsResponse' {} a -> s {httpStatus = a} :: ListPolicyAttachmentsResponse)

instance Prelude.NFData ListPolicyAttachmentsResponse where
  rnf ListPolicyAttachmentsResponse' {..} =
    Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf objectIdentifiers
      `Prelude.seq` Prelude.rnf httpStatus