{-# 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.IoT.ListAuthorizers
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Lists the authorizers registered in your account.
--
-- Requires permission to access the
-- <https://docs.aws.amazon.com/service-authorization/latest/reference/list_awsiot.html#awsiot-actions-as-permissions ListAuthorizers>
-- action.
--
-- This operation returns paginated results.
module Amazonka.IoT.ListAuthorizers
  ( -- * Creating a Request
    ListAuthorizers (..),
    newListAuthorizers,

    -- * Request Lenses
    listAuthorizers_ascendingOrder,
    listAuthorizers_marker,
    listAuthorizers_pageSize,
    listAuthorizers_status,

    -- * Destructuring the Response
    ListAuthorizersResponse (..),
    newListAuthorizersResponse,

    -- * Response Lenses
    listAuthorizersResponse_authorizers,
    listAuthorizersResponse_nextMarker,
    listAuthorizersResponse_httpStatus,
  )
where

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

-- | /See:/ 'newListAuthorizers' smart constructor.
data ListAuthorizers = ListAuthorizers'
  { -- | Return the list of authorizers in ascending alphabetical order.
    ascendingOrder :: Prelude.Maybe Prelude.Bool,
    -- | A marker used to get the next set of results.
    marker :: Prelude.Maybe Prelude.Text,
    -- | The maximum number of results to return at one time.
    pageSize :: Prelude.Maybe Prelude.Natural,
    -- | The status of the list authorizers request.
    status :: Prelude.Maybe AuthorizerStatus
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListAuthorizers' 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:
--
-- 'ascendingOrder', 'listAuthorizers_ascendingOrder' - Return the list of authorizers in ascending alphabetical order.
--
-- 'marker', 'listAuthorizers_marker' - A marker used to get the next set of results.
--
-- 'pageSize', 'listAuthorizers_pageSize' - The maximum number of results to return at one time.
--
-- 'status', 'listAuthorizers_status' - The status of the list authorizers request.
newListAuthorizers ::
  ListAuthorizers
newListAuthorizers =
  ListAuthorizers'
    { ascendingOrder = Prelude.Nothing,
      marker = Prelude.Nothing,
      pageSize = Prelude.Nothing,
      status = Prelude.Nothing
    }

-- | Return the list of authorizers in ascending alphabetical order.
listAuthorizers_ascendingOrder :: Lens.Lens' ListAuthorizers (Prelude.Maybe Prelude.Bool)
listAuthorizers_ascendingOrder = Lens.lens (\ListAuthorizers' {ascendingOrder} -> ascendingOrder) (\s@ListAuthorizers' {} a -> s {ascendingOrder = a} :: ListAuthorizers)

-- | A marker used to get the next set of results.
listAuthorizers_marker :: Lens.Lens' ListAuthorizers (Prelude.Maybe Prelude.Text)
listAuthorizers_marker = Lens.lens (\ListAuthorizers' {marker} -> marker) (\s@ListAuthorizers' {} a -> s {marker = a} :: ListAuthorizers)

-- | The maximum number of results to return at one time.
listAuthorizers_pageSize :: Lens.Lens' ListAuthorizers (Prelude.Maybe Prelude.Natural)
listAuthorizers_pageSize = Lens.lens (\ListAuthorizers' {pageSize} -> pageSize) (\s@ListAuthorizers' {} a -> s {pageSize = a} :: ListAuthorizers)

-- | The status of the list authorizers request.
listAuthorizers_status :: Lens.Lens' ListAuthorizers (Prelude.Maybe AuthorizerStatus)
listAuthorizers_status = Lens.lens (\ListAuthorizers' {status} -> status) (\s@ListAuthorizers' {} a -> s {status = a} :: ListAuthorizers)

instance Core.AWSPager ListAuthorizers where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listAuthorizersResponse_nextMarker
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listAuthorizersResponse_authorizers
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listAuthorizers_marker
          Lens..~ rs
          Lens.^? listAuthorizersResponse_nextMarker
          Prelude.. Lens._Just

instance Core.AWSRequest ListAuthorizers where
  type
    AWSResponse ListAuthorizers =
      ListAuthorizersResponse
  request overrides =
    Request.get (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          ListAuthorizersResponse'
            Prelude.<$> (x Data..?> "authorizers" Core..!@ Prelude.mempty)
            Prelude.<*> (x Data..?> "nextMarker")
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

instance Prelude.Hashable ListAuthorizers where
  hashWithSalt _salt ListAuthorizers' {..} =
    _salt
      `Prelude.hashWithSalt` ascendingOrder
      `Prelude.hashWithSalt` marker
      `Prelude.hashWithSalt` pageSize
      `Prelude.hashWithSalt` status

instance Prelude.NFData ListAuthorizers where
  rnf ListAuthorizers' {..} =
    Prelude.rnf ascendingOrder
      `Prelude.seq` Prelude.rnf marker
      `Prelude.seq` Prelude.rnf pageSize
      `Prelude.seq` Prelude.rnf status

instance Data.ToHeaders ListAuthorizers where
  toHeaders = Prelude.const Prelude.mempty

instance Data.ToPath ListAuthorizers where
  toPath = Prelude.const "/authorizers/"

instance Data.ToQuery ListAuthorizers where
  toQuery ListAuthorizers' {..} =
    Prelude.mconcat
      [ "isAscendingOrder" Data.=: ascendingOrder,
        "marker" Data.=: marker,
        "pageSize" Data.=: pageSize,
        "status" Data.=: status
      ]

-- | /See:/ 'newListAuthorizersResponse' smart constructor.
data ListAuthorizersResponse = ListAuthorizersResponse'
  { -- | The authorizers.
    authorizers :: Prelude.Maybe [AuthorizerSummary],
    -- | A marker used to get the next set of results.
    nextMarker :: 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 'ListAuthorizersResponse' 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:
--
-- 'authorizers', 'listAuthorizersResponse_authorizers' - The authorizers.
--
-- 'nextMarker', 'listAuthorizersResponse_nextMarker' - A marker used to get the next set of results.
--
-- 'httpStatus', 'listAuthorizersResponse_httpStatus' - The response's http status code.
newListAuthorizersResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListAuthorizersResponse
newListAuthorizersResponse pHttpStatus_ =
  ListAuthorizersResponse'
    { authorizers =
        Prelude.Nothing,
      nextMarker = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The authorizers.
listAuthorizersResponse_authorizers :: Lens.Lens' ListAuthorizersResponse (Prelude.Maybe [AuthorizerSummary])
listAuthorizersResponse_authorizers = Lens.lens (\ListAuthorizersResponse' {authorizers} -> authorizers) (\s@ListAuthorizersResponse' {} a -> s {authorizers = a} :: ListAuthorizersResponse) Prelude.. Lens.mapping Lens.coerced

-- | A marker used to get the next set of results.
listAuthorizersResponse_nextMarker :: Lens.Lens' ListAuthorizersResponse (Prelude.Maybe Prelude.Text)
listAuthorizersResponse_nextMarker = Lens.lens (\ListAuthorizersResponse' {nextMarker} -> nextMarker) (\s@ListAuthorizersResponse' {} a -> s {nextMarker = a} :: ListAuthorizersResponse)

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

instance Prelude.NFData ListAuthorizersResponse where
  rnf ListAuthorizersResponse' {..} =
    Prelude.rnf authorizers
      `Prelude.seq` Prelude.rnf nextMarker
      `Prelude.seq` Prelude.rnf httpStatus