{-# 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.ElasticSearch.DescribeReservedElasticsearchInstanceOfferings
-- 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 available reserved Elasticsearch instance offerings.
--
-- This operation returns paginated results.
module Amazonka.ElasticSearch.DescribeReservedElasticsearchInstanceOfferings
  ( -- * Creating a Request
    DescribeReservedElasticsearchInstanceOfferings (..),
    newDescribeReservedElasticsearchInstanceOfferings,

    -- * Request Lenses
    describeReservedElasticsearchInstanceOfferings_maxResults,
    describeReservedElasticsearchInstanceOfferings_nextToken,
    describeReservedElasticsearchInstanceOfferings_reservedElasticsearchInstanceOfferingId,

    -- * Destructuring the Response
    DescribeReservedElasticsearchInstanceOfferingsResponse (..),
    newDescribeReservedElasticsearchInstanceOfferingsResponse,

    -- * Response Lenses
    describeReservedElasticsearchInstanceOfferingsResponse_nextToken,
    describeReservedElasticsearchInstanceOfferingsResponse_reservedElasticsearchInstanceOfferings,
    describeReservedElasticsearchInstanceOfferingsResponse_httpStatus,
  )
where

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

-- | Container for parameters to
-- @DescribeReservedElasticsearchInstanceOfferings@
--
-- /See:/ 'newDescribeReservedElasticsearchInstanceOfferings' smart constructor.
data DescribeReservedElasticsearchInstanceOfferings = DescribeReservedElasticsearchInstanceOfferings'
  { -- | Set this value to limit the number of results returned. If not
    -- specified, defaults to 100.
    maxResults :: Prelude.Maybe Prelude.Int,
    -- | NextToken should be sent in case if earlier API call produced result
    -- containing NextToken. It is used for pagination.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The offering identifier filter value. Use this parameter to show only
    -- the available offering that matches the specified reservation
    -- identifier.
    reservedElasticsearchInstanceOfferingId :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeReservedElasticsearchInstanceOfferings' 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', 'describeReservedElasticsearchInstanceOfferings_maxResults' - Set this value to limit the number of results returned. If not
-- specified, defaults to 100.
--
-- 'nextToken', 'describeReservedElasticsearchInstanceOfferings_nextToken' - NextToken should be sent in case if earlier API call produced result
-- containing NextToken. It is used for pagination.
--
-- 'reservedElasticsearchInstanceOfferingId', 'describeReservedElasticsearchInstanceOfferings_reservedElasticsearchInstanceOfferingId' - The offering identifier filter value. Use this parameter to show only
-- the available offering that matches the specified reservation
-- identifier.
newDescribeReservedElasticsearchInstanceOfferings ::
  DescribeReservedElasticsearchInstanceOfferings
newDescribeReservedElasticsearchInstanceOfferings =
  DescribeReservedElasticsearchInstanceOfferings'
    { maxResults =
        Prelude.Nothing,
      nextToken = Prelude.Nothing,
      reservedElasticsearchInstanceOfferingId =
        Prelude.Nothing
    }

-- | Set this value to limit the number of results returned. If not
-- specified, defaults to 100.
describeReservedElasticsearchInstanceOfferings_maxResults :: Lens.Lens' DescribeReservedElasticsearchInstanceOfferings (Prelude.Maybe Prelude.Int)
describeReservedElasticsearchInstanceOfferings_maxResults = Lens.lens (\DescribeReservedElasticsearchInstanceOfferings' {maxResults} -> maxResults) (\s@DescribeReservedElasticsearchInstanceOfferings' {} a -> s {maxResults = a} :: DescribeReservedElasticsearchInstanceOfferings)

-- | NextToken should be sent in case if earlier API call produced result
-- containing NextToken. It is used for pagination.
describeReservedElasticsearchInstanceOfferings_nextToken :: Lens.Lens' DescribeReservedElasticsearchInstanceOfferings (Prelude.Maybe Prelude.Text)
describeReservedElasticsearchInstanceOfferings_nextToken = Lens.lens (\DescribeReservedElasticsearchInstanceOfferings' {nextToken} -> nextToken) (\s@DescribeReservedElasticsearchInstanceOfferings' {} a -> s {nextToken = a} :: DescribeReservedElasticsearchInstanceOfferings)

-- | The offering identifier filter value. Use this parameter to show only
-- the available offering that matches the specified reservation
-- identifier.
describeReservedElasticsearchInstanceOfferings_reservedElasticsearchInstanceOfferingId :: Lens.Lens' DescribeReservedElasticsearchInstanceOfferings (Prelude.Maybe Prelude.Text)
describeReservedElasticsearchInstanceOfferings_reservedElasticsearchInstanceOfferingId = Lens.lens (\DescribeReservedElasticsearchInstanceOfferings' {reservedElasticsearchInstanceOfferingId} -> reservedElasticsearchInstanceOfferingId) (\s@DescribeReservedElasticsearchInstanceOfferings' {} a -> s {reservedElasticsearchInstanceOfferingId = a} :: DescribeReservedElasticsearchInstanceOfferings)

instance
  Core.AWSPager
    DescribeReservedElasticsearchInstanceOfferings
  where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? describeReservedElasticsearchInstanceOfferingsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? describeReservedElasticsearchInstanceOfferingsResponse_reservedElasticsearchInstanceOfferings
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& describeReservedElasticsearchInstanceOfferings_nextToken
          Lens..~ rs
          Lens.^? describeReservedElasticsearchInstanceOfferingsResponse_nextToken
          Prelude.. Lens._Just

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

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

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

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

instance
  Data.ToPath
    DescribeReservedElasticsearchInstanceOfferings
  where
  toPath =
    Prelude.const
      "/2015-01-01/es/reservedInstanceOfferings"

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

-- | Container for results from
-- @DescribeReservedElasticsearchInstanceOfferings@
--
-- /See:/ 'newDescribeReservedElasticsearchInstanceOfferingsResponse' smart constructor.
data DescribeReservedElasticsearchInstanceOfferingsResponse = DescribeReservedElasticsearchInstanceOfferingsResponse'
  { -- | Provides an identifier to allow retrieval of paginated results.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | List of reserved Elasticsearch instance offerings
    reservedElasticsearchInstanceOfferings :: Prelude.Maybe [ReservedElasticsearchInstanceOffering],
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeReservedElasticsearchInstanceOfferingsResponse' 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', 'describeReservedElasticsearchInstanceOfferingsResponse_nextToken' - Provides an identifier to allow retrieval of paginated results.
--
-- 'reservedElasticsearchInstanceOfferings', 'describeReservedElasticsearchInstanceOfferingsResponse_reservedElasticsearchInstanceOfferings' - List of reserved Elasticsearch instance offerings
--
-- 'httpStatus', 'describeReservedElasticsearchInstanceOfferingsResponse_httpStatus' - The response's http status code.
newDescribeReservedElasticsearchInstanceOfferingsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  DescribeReservedElasticsearchInstanceOfferingsResponse
newDescribeReservedElasticsearchInstanceOfferingsResponse
  pHttpStatus_ =
    DescribeReservedElasticsearchInstanceOfferingsResponse'
      { nextToken =
          Prelude.Nothing,
        reservedElasticsearchInstanceOfferings =
          Prelude.Nothing,
        httpStatus =
          pHttpStatus_
      }

-- | Provides an identifier to allow retrieval of paginated results.
describeReservedElasticsearchInstanceOfferingsResponse_nextToken :: Lens.Lens' DescribeReservedElasticsearchInstanceOfferingsResponse (Prelude.Maybe Prelude.Text)
describeReservedElasticsearchInstanceOfferingsResponse_nextToken = Lens.lens (\DescribeReservedElasticsearchInstanceOfferingsResponse' {nextToken} -> nextToken) (\s@DescribeReservedElasticsearchInstanceOfferingsResponse' {} a -> s {nextToken = a} :: DescribeReservedElasticsearchInstanceOfferingsResponse)

-- | List of reserved Elasticsearch instance offerings
describeReservedElasticsearchInstanceOfferingsResponse_reservedElasticsearchInstanceOfferings :: Lens.Lens' DescribeReservedElasticsearchInstanceOfferingsResponse (Prelude.Maybe [ReservedElasticsearchInstanceOffering])
describeReservedElasticsearchInstanceOfferingsResponse_reservedElasticsearchInstanceOfferings = Lens.lens (\DescribeReservedElasticsearchInstanceOfferingsResponse' {reservedElasticsearchInstanceOfferings} -> reservedElasticsearchInstanceOfferings) (\s@DescribeReservedElasticsearchInstanceOfferingsResponse' {} a -> s {reservedElasticsearchInstanceOfferings = a} :: DescribeReservedElasticsearchInstanceOfferingsResponse) Prelude.. Lens.mapping Lens.coerced

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

instance
  Prelude.NFData
    DescribeReservedElasticsearchInstanceOfferingsResponse
  where
  rnf
    DescribeReservedElasticsearchInstanceOfferingsResponse' {..} =
      Prelude.rnf nextToken
        `Prelude.seq` Prelude.rnf reservedElasticsearchInstanceOfferings
        `Prelude.seq` Prelude.rnf httpStatus