{-# 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.StorageGateway.ListVolumes
-- 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 iSCSI stored volumes of a gateway. Results are sorted by
-- volume ARN. The response includes only the volume ARNs. If you want
-- additional volume information, use the DescribeStorediSCSIVolumes or the
-- DescribeCachediSCSIVolumes API.
--
-- The operation supports pagination. By default, the operation returns a
-- maximum of up to 100 volumes. You can optionally specify the @Limit@
-- field in the body to limit the number of volumes in the response. If the
-- number of volumes returned in the response is truncated, the response
-- includes a Marker field. You can use this Marker value in your
-- subsequent request to retrieve the next set of volumes. This operation
-- is only supported in the cached volume and stored volume gateway types.
--
-- This operation returns paginated results.
module Amazonka.StorageGateway.ListVolumes
  ( -- * Creating a Request
    ListVolumes (..),
    newListVolumes,

    -- * Request Lenses
    listVolumes_gatewayARN,
    listVolumes_limit,
    listVolumes_marker,

    -- * Destructuring the Response
    ListVolumesResponse (..),
    newListVolumesResponse,

    -- * Response Lenses
    listVolumesResponse_gatewayARN,
    listVolumesResponse_marker,
    listVolumesResponse_volumeInfos,
    listVolumesResponse_httpStatus,
  )
where

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
import Amazonka.StorageGateway.Types

-- | A JSON object that contains one or more of the following fields:
--
-- -   ListVolumesInput$Limit
--
-- -   ListVolumesInput$Marker
--
-- /See:/ 'newListVolumes' smart constructor.
data ListVolumes = ListVolumes'
  { gatewayARN :: Prelude.Maybe Prelude.Text,
    -- | Specifies that the list of volumes returned be limited to the specified
    -- number of items.
    limit :: Prelude.Maybe Prelude.Natural,
    -- | A string that indicates the position at which to begin the returned list
    -- of volumes. Obtain the marker from the response of a previous List iSCSI
    -- Volumes request.
    marker :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListVolumes' 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:
--
-- 'gatewayARN', 'listVolumes_gatewayARN' - Undocumented member.
--
-- 'limit', 'listVolumes_limit' - Specifies that the list of volumes returned be limited to the specified
-- number of items.
--
-- 'marker', 'listVolumes_marker' - A string that indicates the position at which to begin the returned list
-- of volumes. Obtain the marker from the response of a previous List iSCSI
-- Volumes request.
newListVolumes ::
  ListVolumes
newListVolumes =
  ListVolumes'
    { gatewayARN = Prelude.Nothing,
      limit = Prelude.Nothing,
      marker = Prelude.Nothing
    }

-- | Undocumented member.
listVolumes_gatewayARN :: Lens.Lens' ListVolumes (Prelude.Maybe Prelude.Text)
listVolumes_gatewayARN = Lens.lens (\ListVolumes' {gatewayARN} -> gatewayARN) (\s@ListVolumes' {} a -> s {gatewayARN = a} :: ListVolumes)

-- | Specifies that the list of volumes returned be limited to the specified
-- number of items.
listVolumes_limit :: Lens.Lens' ListVolumes (Prelude.Maybe Prelude.Natural)
listVolumes_limit = Lens.lens (\ListVolumes' {limit} -> limit) (\s@ListVolumes' {} a -> s {limit = a} :: ListVolumes)

-- | A string that indicates the position at which to begin the returned list
-- of volumes. Obtain the marker from the response of a previous List iSCSI
-- Volumes request.
listVolumes_marker :: Lens.Lens' ListVolumes (Prelude.Maybe Prelude.Text)
listVolumes_marker = Lens.lens (\ListVolumes' {marker} -> marker) (\s@ListVolumes' {} a -> s {marker = a} :: ListVolumes)

instance Core.AWSPager ListVolumes where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? listVolumesResponse_marker
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^? listVolumesResponse_volumeInfos
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& listVolumes_marker
          Lens..~ rs
          Lens.^? listVolumesResponse_marker
          Prelude.. Lens._Just

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

instance Prelude.Hashable ListVolumes where
  hashWithSalt _salt ListVolumes' {..} =
    _salt
      `Prelude.hashWithSalt` gatewayARN
      `Prelude.hashWithSalt` limit
      `Prelude.hashWithSalt` marker

instance Prelude.NFData ListVolumes where
  rnf ListVolumes' {..} =
    Prelude.rnf gatewayARN
      `Prelude.seq` Prelude.rnf limit
      `Prelude.seq` Prelude.rnf marker

instance Data.ToHeaders ListVolumes where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ( "StorageGateway_20130630.ListVolumes" ::
                          Prelude.ByteString
                      ),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON ListVolumes where
  toJSON ListVolumes' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("GatewayARN" Data..=) Prelude.<$> gatewayARN,
            ("Limit" Data..=) Prelude.<$> limit,
            ("Marker" Data..=) Prelude.<$> marker
          ]
      )

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

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

-- | A JSON object containing the following fields:
--
-- -   ListVolumesOutput$Marker
--
-- -   ListVolumesOutput$VolumeInfos
--
-- /See:/ 'newListVolumesResponse' smart constructor.
data ListVolumesResponse = ListVolumesResponse'
  { gatewayARN :: Prelude.Maybe Prelude.Text,
    -- | Use the marker in your next request to continue pagination of iSCSI
    -- volumes. If there are no more volumes to list, this field does not
    -- appear in the response body.
    marker :: Prelude.Maybe Prelude.Text,
    -- | An array of VolumeInfo objects, where each object describes an iSCSI
    -- volume. If no volumes are defined for the gateway, then @VolumeInfos@ is
    -- an empty array \"[]\".
    volumeInfos :: Prelude.Maybe [VolumeInfo],
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ListVolumesResponse' 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:
--
-- 'gatewayARN', 'listVolumesResponse_gatewayARN' - Undocumented member.
--
-- 'marker', 'listVolumesResponse_marker' - Use the marker in your next request to continue pagination of iSCSI
-- volumes. If there are no more volumes to list, this field does not
-- appear in the response body.
--
-- 'volumeInfos', 'listVolumesResponse_volumeInfos' - An array of VolumeInfo objects, where each object describes an iSCSI
-- volume. If no volumes are defined for the gateway, then @VolumeInfos@ is
-- an empty array \"[]\".
--
-- 'httpStatus', 'listVolumesResponse_httpStatus' - The response's http status code.
newListVolumesResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ListVolumesResponse
newListVolumesResponse pHttpStatus_ =
  ListVolumesResponse'
    { gatewayARN = Prelude.Nothing,
      marker = Prelude.Nothing,
      volumeInfos = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | Undocumented member.
listVolumesResponse_gatewayARN :: Lens.Lens' ListVolumesResponse (Prelude.Maybe Prelude.Text)
listVolumesResponse_gatewayARN = Lens.lens (\ListVolumesResponse' {gatewayARN} -> gatewayARN) (\s@ListVolumesResponse' {} a -> s {gatewayARN = a} :: ListVolumesResponse)

-- | Use the marker in your next request to continue pagination of iSCSI
-- volumes. If there are no more volumes to list, this field does not
-- appear in the response body.
listVolumesResponse_marker :: Lens.Lens' ListVolumesResponse (Prelude.Maybe Prelude.Text)
listVolumesResponse_marker = Lens.lens (\ListVolumesResponse' {marker} -> marker) (\s@ListVolumesResponse' {} a -> s {marker = a} :: ListVolumesResponse)

-- | An array of VolumeInfo objects, where each object describes an iSCSI
-- volume. If no volumes are defined for the gateway, then @VolumeInfos@ is
-- an empty array \"[]\".
listVolumesResponse_volumeInfos :: Lens.Lens' ListVolumesResponse (Prelude.Maybe [VolumeInfo])
listVolumesResponse_volumeInfos = Lens.lens (\ListVolumesResponse' {volumeInfos} -> volumeInfos) (\s@ListVolumesResponse' {} a -> s {volumeInfos = a} :: ListVolumesResponse) Prelude.. Lens.mapping Lens.coerced

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

instance Prelude.NFData ListVolumesResponse where
  rnf ListVolumesResponse' {..} =
    Prelude.rnf gatewayARN
      `Prelude.seq` Prelude.rnf marker
      `Prelude.seq` Prelude.rnf volumeInfos
      `Prelude.seq` Prelude.rnf httpStatus