{-# 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.Athena.ListDataCatalogs
-- 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 data catalogs in the current Amazon Web Services account.
--
-- This operation returns paginated results.
module Amazonka.Athena.ListDataCatalogs
  ( -- * Creating a Request
    ListDataCatalogs (..),
    newListDataCatalogs,

    -- * Request Lenses
    listDataCatalogs_maxResults,
    listDataCatalogs_nextToken,

    -- * Destructuring the Response
    ListDataCatalogsResponse (..),
    newListDataCatalogsResponse,

    -- * Response Lenses
    listDataCatalogsResponse_dataCatalogsSummary,
    listDataCatalogsResponse_nextToken,
    listDataCatalogsResponse_httpStatus,
  )
where

import Amazonka.Athena.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:/ 'newListDataCatalogs' smart constructor.
data ListDataCatalogs = ListDataCatalogs'
  { -- | Specifies the maximum number of data catalogs to return.
    maxResults :: Prelude.Maybe Prelude.Natural,
    -- | A token generated by the Athena service that specifies where to continue
    -- pagination if a previous request was truncated. To obtain the next set
    -- of pages, pass in the NextToken from the response object of the previous
    -- page call.
    nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListDataCatalogs' 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', 'listDataCatalogs_maxResults' - Specifies the maximum number of data catalogs to return.
--
-- 'nextToken', 'listDataCatalogs_nextToken' - A token generated by the Athena service that specifies where to continue
-- pagination if a previous request was truncated. To obtain the next set
-- of pages, pass in the NextToken from the response object of the previous
-- page call.
newListDataCatalogs ::
  ListDataCatalogs
newListDataCatalogs =
  ListDataCatalogs'
    { maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing
    }

-- | Specifies the maximum number of data catalogs to return.
listDataCatalogs_maxResults :: Lens.Lens' ListDataCatalogs (Prelude.Maybe Prelude.Natural)
listDataCatalogs_maxResults = Lens.lens (\ListDataCatalogs' {maxResults} -> maxResults) (\s@ListDataCatalogs' {} a -> s {maxResults = a} :: ListDataCatalogs)

-- | A token generated by the Athena service that specifies where to continue
-- pagination if a previous request was truncated. To obtain the next set
-- of pages, pass in the NextToken from the response object of the previous
-- page call.
listDataCatalogs_nextToken :: Lens.Lens' ListDataCatalogs (Prelude.Maybe Prelude.Text)
listDataCatalogs_nextToken = Lens.lens (\ListDataCatalogs' {nextToken} -> nextToken) (\s@ListDataCatalogs' {} a -> s {nextToken = a} :: ListDataCatalogs)

instance Core.AWSPager ListDataCatalogs where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listDataCatalogsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listDataCatalogsResponse_dataCatalogsSummary
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listDataCatalogs_nextToken
          Lens..~ rs
          Lens.^? listDataCatalogsResponse_nextToken
          Prelude.. Lens._Just

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

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

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

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

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

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

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

-- | /See:/ 'newListDataCatalogsResponse' smart constructor.
data ListDataCatalogsResponse = ListDataCatalogsResponse'
  { -- | A summary list of data catalogs.
    dataCatalogsSummary :: Prelude.Maybe [DataCatalogSummary],
    -- | A token generated by the Athena service that specifies where to continue
    -- pagination if a previous request was truncated. To obtain the next set
    -- of pages, pass in the NextToken from the response object of the previous
    -- page call.
    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 'ListDataCatalogsResponse' 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:
--
-- 'dataCatalogsSummary', 'listDataCatalogsResponse_dataCatalogsSummary' - A summary list of data catalogs.
--
-- 'nextToken', 'listDataCatalogsResponse_nextToken' - A token generated by the Athena service that specifies where to continue
-- pagination if a previous request was truncated. To obtain the next set
-- of pages, pass in the NextToken from the response object of the previous
-- page call.
--
-- 'httpStatus', 'listDataCatalogsResponse_httpStatus' - The response's http status code.
newListDataCatalogsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListDataCatalogsResponse
newListDataCatalogsResponse pHttpStatus_ =
  ListDataCatalogsResponse'
    { dataCatalogsSummary =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | A summary list of data catalogs.
listDataCatalogsResponse_dataCatalogsSummary :: Lens.Lens' ListDataCatalogsResponse (Prelude.Maybe [DataCatalogSummary])
listDataCatalogsResponse_dataCatalogsSummary = Lens.lens (\ListDataCatalogsResponse' {dataCatalogsSummary} -> dataCatalogsSummary) (\s@ListDataCatalogsResponse' {} a -> s {dataCatalogsSummary = a} :: ListDataCatalogsResponse) Prelude.. Lens.mapping Lens.coerced

-- | A token generated by the Athena service that specifies where to continue
-- pagination if a previous request was truncated. To obtain the next set
-- of pages, pass in the NextToken from the response object of the previous
-- page call.
listDataCatalogsResponse_nextToken :: Lens.Lens' ListDataCatalogsResponse (Prelude.Maybe Prelude.Text)
listDataCatalogsResponse_nextToken = Lens.lens (\ListDataCatalogsResponse' {nextToken} -> nextToken) (\s@ListDataCatalogsResponse' {} a -> s {nextToken = a} :: ListDataCatalogsResponse)

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

instance Prelude.NFData ListDataCatalogsResponse where
  rnf ListDataCatalogsResponse' {..} =
    Prelude.rnf dataCatalogsSummary
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus