{-# 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.ShutdownGateway
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Shuts down a gateway. To specify which gateway to shut down, use the
-- Amazon Resource Name (ARN) of the gateway in the body of your request.
--
-- The operation shuts down the gateway service component running in the
-- gateway\'s virtual machine (VM) and not the host VM.
--
-- If you want to shut down the VM, it is recommended that you first shut
-- down the gateway component in the VM to avoid unpredictable conditions.
--
-- After the gateway is shutdown, you cannot call any other API except
-- StartGateway, DescribeGatewayInformation, and ListGateways. For more
-- information, see ActivateGateway. Your applications cannot read from or
-- write to the gateway\'s storage volumes, and there are no snapshots
-- taken.
--
-- When you make a shutdown request, you will get a @200 OK@ success
-- response immediately. However, it might take some time for the gateway
-- to shut down. You can call the DescribeGatewayInformation API to check
-- the status. For more information, see ActivateGateway.
--
-- If do not intend to use the gateway again, you must delete the gateway
-- (using DeleteGateway) to no longer pay software charges associated with
-- the gateway.
module Amazonka.StorageGateway.ShutdownGateway
  ( -- * Creating a Request
    ShutdownGateway (..),
    newShutdownGateway,

    -- * Request Lenses
    shutdownGateway_gatewayARN,

    -- * Destructuring the Response
    ShutdownGatewayResponse (..),
    newShutdownGatewayResponse,

    -- * Response Lenses
    shutdownGatewayResponse_gatewayARN,
    shutdownGatewayResponse_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 containing the Amazon Resource Name (ARN) of the gateway
-- to shut down.
--
-- /See:/ 'newShutdownGateway' smart constructor.
data ShutdownGateway = ShutdownGateway'
  { gatewayARN :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'ShutdownGateway' 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', 'shutdownGateway_gatewayARN' - Undocumented member.
newShutdownGateway ::
  -- | 'gatewayARN'
  Prelude.Text ->
  ShutdownGateway
newShutdownGateway pGatewayARN_ =
  ShutdownGateway' {gatewayARN = pGatewayARN_}

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

instance Core.AWSRequest ShutdownGateway where
  type
    AWSResponse ShutdownGateway =
      ShutdownGatewayResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          ShutdownGatewayResponse'
            Prelude.<$> (x Data..?> "GatewayARN")
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

instance Prelude.Hashable ShutdownGateway where
  hashWithSalt _salt ShutdownGateway' {..} =
    _salt `Prelude.hashWithSalt` gatewayARN

instance Prelude.NFData ShutdownGateway where
  rnf ShutdownGateway' {..} = Prelude.rnf gatewayARN

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

instance Data.ToJSON ShutdownGateway where
  toJSON ShutdownGateway' {..} =
    Data.object
      ( Prelude.catMaybes
          [Prelude.Just ("GatewayARN" Data..= gatewayARN)]
      )

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

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

-- | A JSON object containing the Amazon Resource Name (ARN) of the gateway
-- that was shut down.
--
-- /See:/ 'newShutdownGatewayResponse' smart constructor.
data ShutdownGatewayResponse = ShutdownGatewayResponse'
  { gatewayARN :: 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 'ShutdownGatewayResponse' 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', 'shutdownGatewayResponse_gatewayARN' - Undocumented member.
--
-- 'httpStatus', 'shutdownGatewayResponse_httpStatus' - The response's http status code.
newShutdownGatewayResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  ShutdownGatewayResponse
newShutdownGatewayResponse pHttpStatus_ =
  ShutdownGatewayResponse'
    { gatewayARN =
        Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

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

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

instance Prelude.NFData ShutdownGatewayResponse where
  rnf ShutdownGatewayResponse' {..} =
    Prelude.rnf gatewayARN
      `Prelude.seq` Prelude.rnf httpStatus