{-# 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.EMR.ListReleaseLabels
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Retrieves release labels of EMR services in the region where the API is
-- called.
module Amazonka.EMR.ListReleaseLabels
  ( -- * Creating a Request
    ListReleaseLabels (..),
    newListReleaseLabels,

    -- * Request Lenses
    listReleaseLabels_filters,
    listReleaseLabels_maxResults,
    listReleaseLabels_nextToken,

    -- * Destructuring the Response
    ListReleaseLabelsResponse (..),
    newListReleaseLabelsResponse,

    -- * Response Lenses
    listReleaseLabelsResponse_nextToken,
    listReleaseLabelsResponse_releaseLabels,
    listReleaseLabelsResponse_httpStatus,
  )
where

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

-- | /See:/ 'newListReleaseLabels' smart constructor.
data ListReleaseLabels = ListReleaseLabels'
  { -- | Filters the results of the request. @Prefix@ specifies the prefix of
    -- release labels to return. @Application@ specifies the application
    -- (with\/without version) of release labels to return.
    filters :: Prelude.Maybe ReleaseLabelFilter,
    -- | Defines the maximum number of release labels to return in a single
    -- response. The default is @100@.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | Specifies the next page of results. If @NextToken@ is not specified,
    -- which is usually the case for the first request of ListReleaseLabels,
    -- the first page of results are determined by other filtering parameters
    -- or by the latest version. The @ListReleaseLabels@ request fails if the
    -- identity (Amazon Web Services account ID) and all filtering parameters
    -- are different from the original request, or if the @NextToken@ is
    -- expired or tampered with.
    nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListReleaseLabels' 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:
--
-- 'filters', 'listReleaseLabels_filters' - Filters the results of the request. @Prefix@ specifies the prefix of
-- release labels to return. @Application@ specifies the application
-- (with\/without version) of release labels to return.
--
-- 'maxResults', 'listReleaseLabels_maxResults' - Defines the maximum number of release labels to return in a single
-- response. The default is @100@.
--
-- 'nextToken', 'listReleaseLabels_nextToken' - Specifies the next page of results. If @NextToken@ is not specified,
-- which is usually the case for the first request of ListReleaseLabels,
-- the first page of results are determined by other filtering parameters
-- or by the latest version. The @ListReleaseLabels@ request fails if the
-- identity (Amazon Web Services account ID) and all filtering parameters
-- are different from the original request, or if the @NextToken@ is
-- expired or tampered with.
newListReleaseLabels ::
  ListReleaseLabels
newListReleaseLabels =
  ListReleaseLabels'
    { filters = Prelude.Nothing,
      maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing
    }

-- | Filters the results of the request. @Prefix@ specifies the prefix of
-- release labels to return. @Application@ specifies the application
-- (with\/without version) of release labels to return.
listReleaseLabels_filters :: Lens.Lens' ListReleaseLabels (Prelude.Maybe ReleaseLabelFilter)
listReleaseLabels_filters = Lens.lens (\ListReleaseLabels' {filters} -> filters) (\s@ListReleaseLabels' {} a -> s {filters = a} :: ListReleaseLabels)

-- | Defines the maximum number of release labels to return in a single
-- response. The default is @100@.
listReleaseLabels_maxResults :: Lens.Lens' ListReleaseLabels (Prelude.Maybe Prelude.Natural)
listReleaseLabels_maxResults = Lens.lens (\ListReleaseLabels' {maxResults} -> maxResults) (\s@ListReleaseLabels' {} a -> s {maxResults = a} :: ListReleaseLabels)

-- | Specifies the next page of results. If @NextToken@ is not specified,
-- which is usually the case for the first request of ListReleaseLabels,
-- the first page of results are determined by other filtering parameters
-- or by the latest version. The @ListReleaseLabels@ request fails if the
-- identity (Amazon Web Services account ID) and all filtering parameters
-- are different from the original request, or if the @NextToken@ is
-- expired or tampered with.
listReleaseLabels_nextToken :: Lens.Lens' ListReleaseLabels (Prelude.Maybe Prelude.Text)
listReleaseLabels_nextToken = Lens.lens (\ListReleaseLabels' {nextToken} -> nextToken) (\s@ListReleaseLabels' {} a -> s {nextToken = a} :: ListReleaseLabels)

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

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

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

instance Data.ToHeaders ListReleaseLabels where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ( "ElasticMapReduce.ListReleaseLabels" ::
                          Prelude.ByteString
                      ),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON ListReleaseLabels where
  toJSON ListReleaseLabels' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("Filters" Data..=) Prelude.<$> filters,
            ("MaxResults" Data..=) Prelude.<$> maxResults,
            ("NextToken" Data..=) Prelude.<$> nextToken
          ]
      )

instance Data.ToPath ListReleaseLabels where
  toPath = Prelude.const "/"

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

-- | /See:/ 'newListReleaseLabelsResponse' smart constructor.
data ListReleaseLabelsResponse = ListReleaseLabelsResponse'
  { -- | Used to paginate the next page of results if specified in the next
    -- @ListReleaseLabels@ request.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The returned release labels.
    releaseLabels :: 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 'ListReleaseLabelsResponse' 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', 'listReleaseLabelsResponse_nextToken' - Used to paginate the next page of results if specified in the next
-- @ListReleaseLabels@ request.
--
-- 'releaseLabels', 'listReleaseLabelsResponse_releaseLabels' - The returned release labels.
--
-- 'httpStatus', 'listReleaseLabelsResponse_httpStatus' - The response's http status code.
newListReleaseLabelsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListReleaseLabelsResponse
newListReleaseLabelsResponse pHttpStatus_ =
  ListReleaseLabelsResponse'
    { nextToken =
        Prelude.Nothing,
      releaseLabels = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | Used to paginate the next page of results if specified in the next
-- @ListReleaseLabels@ request.
listReleaseLabelsResponse_nextToken :: Lens.Lens' ListReleaseLabelsResponse (Prelude.Maybe Prelude.Text)
listReleaseLabelsResponse_nextToken = Lens.lens (\ListReleaseLabelsResponse' {nextToken} -> nextToken) (\s@ListReleaseLabelsResponse' {} a -> s {nextToken = a} :: ListReleaseLabelsResponse)

-- | The returned release labels.
listReleaseLabelsResponse_releaseLabels :: Lens.Lens' ListReleaseLabelsResponse (Prelude.Maybe [Prelude.Text])
listReleaseLabelsResponse_releaseLabels = Lens.lens (\ListReleaseLabelsResponse' {releaseLabels} -> releaseLabels) (\s@ListReleaseLabelsResponse' {} a -> s {releaseLabels = a} :: ListReleaseLabelsResponse) Prelude.. Lens.mapping Lens.coerced

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

instance Prelude.NFData ListReleaseLabelsResponse where
  rnf ListReleaseLabelsResponse' {..} =
    Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf releaseLabels
      `Prelude.seq` Prelude.rnf httpStatus