{-# LANGUAGE DataKinds                   #-}
{-# LANGUAGE DeriveGeneric               #-}
{-# LANGUAGE FlexibleInstances           #-}
{-# LANGUAGE GeneralizedNewtypeDeriving  #-}
{-# LANGUAGE LambdaCase                  #-}
{-# LANGUAGE NoImplicitPrelude           #-}
{-# LANGUAGE OverloadedStrings           #-}
{-# LANGUAGE RecordWildCards             #-}
{-# LANGUAGE TypeFamilies                #-}

{-# OPTIONS_GHC -fno-warn-unused-imports #-}

-- Module      : Network.AWS.StorageGateway.DeleteGateway
-- Copyright   : (c) 2013-2014 Brendan Hay <brendan.g.hay@gmail.com>
-- License     : This Source Code Form is subject to the terms of
--               the Mozilla Public License, v. 2.0.
--               A copy of the MPL can be found in the LICENSE file or
--               you can obtain it at http://mozilla.org/MPL/2.0/.
-- Maintainer  : Brendan Hay <brendan.g.hay@gmail.com>
-- Stability   : experimental
-- Portability : non-portable (GHC extensions)

-- | This operation deletes a gateway. To specify which gateway to delete, use the
-- Amazon Resource Name (ARN) of the gateway in your request. The operation
-- deletes the gateway; however, it does not delete the gateway virtual machine
-- (VM) from your host computer.
--
-- After you delete a gateway, you cannot reactivate it. Completed snapshots of
-- the gateway volumes are not deleted upon deleting the gateway, however,
-- pending snapshots will not complete. After you delete a gateway, your next
-- step is to remove it from your environment.
--
-- You no longer pay software charges after the gateway is deleted; however,
-- your existing Amazon EBS snapshots persist and you will continue to be billed
-- for these snapshots. You can choose to remove all remaining Amazon EBS
-- snapshots by canceling your Amazon EC2 subscription.  If you prefer not to
-- cancel your Amazon EC2 subscription, you can delete your snapshots using the
-- Amazon EC2 console. For more information, see the <http://aws.amazon.com/storagegateway  AWS Storage Gateway DetailPage>.
--
--
--
-- <http://docs.aws.amazon.com/storagegateway/latest/APIReference/API_DeleteGateway.html>
module Network.AWS.StorageGateway.DeleteGateway
    (
    -- * Request
      DeleteGateway
    -- ** Request constructor
    , deleteGateway
    -- ** Request lenses
    , dgGatewayARN

    -- * Response
    , DeleteGatewayResponse
    -- ** Response constructor
    , deleteGatewayResponse
    -- ** Response lenses
    , dgrGatewayARN
    ) where

import Network.AWS.Prelude
import Network.AWS.Request.JSON
import Network.AWS.StorageGateway.Types
import qualified GHC.Exts

newtype DeleteGateway = DeleteGateway
    { _dgGatewayARN :: Text
    } deriving (Eq, Ord, Show, Monoid, IsString)

-- | 'DeleteGateway' constructor.
--
-- The fields accessible through corresponding lenses are:
--
-- * 'dgGatewayARN' @::@ 'Text'
--
deleteGateway :: Text -- ^ 'dgGatewayARN'
              -> DeleteGateway
deleteGateway p1 = DeleteGateway
    { _dgGatewayARN = p1
    }

dgGatewayARN :: Lens' DeleteGateway Text
dgGatewayARN = lens _dgGatewayARN (\s a -> s { _dgGatewayARN = a })

newtype DeleteGatewayResponse = DeleteGatewayResponse
    { _dgrGatewayARN :: Maybe Text
    } deriving (Eq, Ord, Show, Monoid)

-- | 'DeleteGatewayResponse' constructor.
--
-- The fields accessible through corresponding lenses are:
--
-- * 'dgrGatewayARN' @::@ 'Maybe' 'Text'
--
deleteGatewayResponse :: DeleteGatewayResponse
deleteGatewayResponse = DeleteGatewayResponse
    { _dgrGatewayARN = Nothing
    }

dgrGatewayARN :: Lens' DeleteGatewayResponse (Maybe Text)
dgrGatewayARN = lens _dgrGatewayARN (\s a -> s { _dgrGatewayARN = a })

instance ToPath DeleteGateway where
    toPath = const "/"

instance ToQuery DeleteGateway where
    toQuery = const mempty

instance ToHeaders DeleteGateway

instance ToJSON DeleteGateway where
    toJSON DeleteGateway{..} = object
        [ "GatewayARN" .= _dgGatewayARN
        ]

instance AWSRequest DeleteGateway where
    type Sv DeleteGateway = StorageGateway
    type Rs DeleteGateway = DeleteGatewayResponse

    request  = post "DeleteGateway"
    response = jsonResponse

instance FromJSON DeleteGatewayResponse where
    parseJSON = withObject "DeleteGatewayResponse" $ \o -> DeleteGatewayResponse
        <$> o .:? "GatewayARN"