{-# 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.Kafka.ListConfigurations
-- 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 a list of all the MSK configurations in this Region.
--
-- This operation returns paginated results.
module Amazonka.Kafka.ListConfigurations
  ( -- * Creating a Request
    ListConfigurations (..),
    newListConfigurations,

    -- * Request Lenses
    listConfigurations_maxResults,
    listConfigurations_nextToken,

    -- * Destructuring the Response
    ListConfigurationsResponse (..),
    newListConfigurationsResponse,

    -- * Response Lenses
    listConfigurationsResponse_configurations,
    listConfigurationsResponse_nextToken,
    listConfigurationsResponse_httpStatus,
  )
where

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

-- | /See:/ 'newListConfigurations' smart constructor.
data ListConfigurations = ListConfigurations'
  { -- | The maximum number of results to return in the response. If there are
    -- more results, the response includes a NextToken parameter.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | The paginated results marker. When the result of the operation is
    -- truncated, the call returns NextToken in the response. To get the next
    -- batch, provide this token in your next request.
    nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListConfigurations' 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:
--
-- 'maxResults', 'listConfigurations_maxResults' - The maximum number of results to return in the response. If there are
-- more results, the response includes a NextToken parameter.
--
-- 'nextToken', 'listConfigurations_nextToken' - The paginated results marker. When the result of the operation is
-- truncated, the call returns NextToken in the response. To get the next
-- batch, provide this token in your next request.
newListConfigurations ::
  ListConfigurations
newListConfigurations =
  ListConfigurations'
    { maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing
    }

-- | The maximum number of results to return in the response. If there are
-- more results, the response includes a NextToken parameter.
listConfigurations_maxResults :: Lens.Lens' ListConfigurations (Prelude.Maybe Prelude.Natural)
listConfigurations_maxResults = Lens.lens (\ListConfigurations' {maxResults} -> maxResults) (\s@ListConfigurations' {} a -> s {maxResults = a} :: ListConfigurations)

-- | The paginated results marker. When the result of the operation is
-- truncated, the call returns NextToken in the response. To get the next
-- batch, provide this token in your next request.
listConfigurations_nextToken :: Lens.Lens' ListConfigurations (Prelude.Maybe Prelude.Text)
listConfigurations_nextToken = Lens.lens (\ListConfigurations' {nextToken} -> nextToken) (\s@ListConfigurations' {} a -> s {nextToken = a} :: ListConfigurations)

instance Core.AWSPager ListConfigurations where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listConfigurationsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listConfigurationsResponse_configurations
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listConfigurations_nextToken
          Lens..~ rs
          Lens.^? listConfigurationsResponse_nextToken
          Prelude.. Lens._Just

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

instance Prelude.Hashable ListConfigurations where
  hashWithSalt _salt ListConfigurations' {..} =
    _salt
      `Prelude.hashWithSalt` maxResults
      `Prelude.hashWithSalt` nextToken

instance Prelude.NFData ListConfigurations where
  rnf ListConfigurations' {..} =
    Prelude.rnf maxResults
      `Prelude.seq` Prelude.rnf nextToken

instance Data.ToHeaders ListConfigurations where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToPath ListConfigurations where
  toPath = Prelude.const "/v1/configurations"

instance Data.ToQuery ListConfigurations where
  toQuery ListConfigurations' {..} =
    Prelude.mconcat
      [ "maxResults" Data.=: maxResults,
        "nextToken" Data.=: nextToken
      ]

-- | /See:/ 'newListConfigurationsResponse' smart constructor.
data ListConfigurationsResponse = ListConfigurationsResponse'
  { -- | An array of MSK configurations.
    configurations :: Prelude.Maybe [Configuration],
    -- | The paginated results marker. When the result of a ListConfigurations
    -- operation is truncated, the call returns NextToken in the response. To
    -- get another batch of configurations, provide this token in your next
    -- request.
    nextToken :: 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 'ListConfigurationsResponse' 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:
--
-- 'configurations', 'listConfigurationsResponse_configurations' - An array of MSK configurations.
--
-- 'nextToken', 'listConfigurationsResponse_nextToken' - The paginated results marker. When the result of a ListConfigurations
-- operation is truncated, the call returns NextToken in the response. To
-- get another batch of configurations, provide this token in your next
-- request.
--
-- 'httpStatus', 'listConfigurationsResponse_httpStatus' - The response's http status code.
newListConfigurationsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListConfigurationsResponse
newListConfigurationsResponse pHttpStatus_ =
  ListConfigurationsResponse'
    { configurations =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | An array of MSK configurations.
listConfigurationsResponse_configurations :: Lens.Lens' ListConfigurationsResponse (Prelude.Maybe [Configuration])
listConfigurationsResponse_configurations = Lens.lens (\ListConfigurationsResponse' {configurations} -> configurations) (\s@ListConfigurationsResponse' {} a -> s {configurations = a} :: ListConfigurationsResponse) Prelude.. Lens.mapping Lens.coerced

-- | The paginated results marker. When the result of a ListConfigurations
-- operation is truncated, the call returns NextToken in the response. To
-- get another batch of configurations, provide this token in your next
-- request.
listConfigurationsResponse_nextToken :: Lens.Lens' ListConfigurationsResponse (Prelude.Maybe Prelude.Text)
listConfigurationsResponse_nextToken = Lens.lens (\ListConfigurationsResponse' {nextToken} -> nextToken) (\s@ListConfigurationsResponse' {} a -> s {nextToken = a} :: ListConfigurationsResponse)

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

instance Prelude.NFData ListConfigurationsResponse where
  rnf ListConfigurationsResponse' {..} =
    Prelude.rnf configurations
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus