{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveGeneric      #-}
{-# LANGUAGE OverloadedStrings  #-}
{-# LANGUAGE RecordWildCards    #-}
{-# LANGUAGE TypeFamilies       #-}

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

-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- |
-- Module      : Network.AWS.EC2.DescribeVolumeAttribute
-- Copyright   : (c) 2013-2016 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay@gmail.com>
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Describes the specified attribute of the specified volume. You can specify only one attribute at a time.
--
-- For more information about EBS volumes, see <http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumes.html Amazon EBS Volumes> in the /Amazon Elastic Compute Cloud User Guide/.
module Network.AWS.EC2.DescribeVolumeAttribute
    (
    -- * Creating a Request
      describeVolumeAttribute
    , DescribeVolumeAttribute
    -- * Request Lenses
    , dvaAttribute
    , dvaDryRun
    , dvaVolumeId

    -- * Destructuring the Response
    , describeVolumeAttributeResponse
    , DescribeVolumeAttributeResponse
    -- * Response Lenses
    , dvarsVolumeId
    , dvarsProductCodes
    , dvarsAutoEnableIO
    , dvarsResponseStatus
    ) where

import           Network.AWS.EC2.Types
import           Network.AWS.EC2.Types.Product
import           Network.AWS.Lens
import           Network.AWS.Prelude
import           Network.AWS.Request
import           Network.AWS.Response

-- | Contains the parameters for DescribeVolumeAttribute.
--
-- /See:/ 'describeVolumeAttribute' smart constructor.
data DescribeVolumeAttribute = DescribeVolumeAttribute'
    { _dvaAttribute :: !(Maybe VolumeAttributeName)
    , _dvaDryRun    :: !(Maybe Bool)
    , _dvaVolumeId  :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeVolumeAttribute' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dvaAttribute'
--
-- * 'dvaDryRun'
--
-- * 'dvaVolumeId'
describeVolumeAttribute
    :: Text -- ^ 'dvaVolumeId'
    -> DescribeVolumeAttribute
describeVolumeAttribute pVolumeId_ =
    DescribeVolumeAttribute'
    { _dvaAttribute = Nothing
    , _dvaDryRun = Nothing
    , _dvaVolumeId = pVolumeId_
    }

-- | The instance attribute.
dvaAttribute :: Lens' DescribeVolumeAttribute (Maybe VolumeAttributeName)
dvaAttribute = lens _dvaAttribute (\ s a -> s{_dvaAttribute = a});

-- | Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is 'DryRunOperation'. Otherwise, it is 'UnauthorizedOperation'.
dvaDryRun :: Lens' DescribeVolumeAttribute (Maybe Bool)
dvaDryRun = lens _dvaDryRun (\ s a -> s{_dvaDryRun = a});

-- | The ID of the volume.
dvaVolumeId :: Lens' DescribeVolumeAttribute Text
dvaVolumeId = lens _dvaVolumeId (\ s a -> s{_dvaVolumeId = a});

instance AWSRequest DescribeVolumeAttribute where
        type Rs DescribeVolumeAttribute =
             DescribeVolumeAttributeResponse
        request = postQuery ec2
        response
          = receiveXML
              (\ s h x ->
                 DescribeVolumeAttributeResponse' <$>
                   (x .@? "volumeId") <*>
                     (x .@? "productCodes" .!@ mempty >>=
                        may (parseXMLList "item"))
                     <*> (x .@? "autoEnableIO")
                     <*> (pure (fromEnum s)))

instance Hashable DescribeVolumeAttribute

instance NFData DescribeVolumeAttribute

instance ToHeaders DescribeVolumeAttribute where
        toHeaders = const mempty

instance ToPath DescribeVolumeAttribute where
        toPath = const "/"

instance ToQuery DescribeVolumeAttribute where
        toQuery DescribeVolumeAttribute'{..}
          = mconcat
              ["Action" =:
                 ("DescribeVolumeAttribute" :: ByteString),
               "Version" =: ("2016-04-01" :: ByteString),
               "Attribute" =: _dvaAttribute, "DryRun" =: _dvaDryRun,
               "VolumeId" =: _dvaVolumeId]

-- | Contains the output of DescribeVolumeAttribute.
--
-- /See:/ 'describeVolumeAttributeResponse' smart constructor.
data DescribeVolumeAttributeResponse = DescribeVolumeAttributeResponse'
    { _dvarsVolumeId       :: !(Maybe Text)
    , _dvarsProductCodes   :: !(Maybe [ProductCode])
    , _dvarsAutoEnableIO   :: !(Maybe AttributeBooleanValue)
    , _dvarsResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeVolumeAttributeResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dvarsVolumeId'
--
-- * 'dvarsProductCodes'
--
-- * 'dvarsAutoEnableIO'
--
-- * 'dvarsResponseStatus'
describeVolumeAttributeResponse
    :: Int -- ^ 'dvarsResponseStatus'
    -> DescribeVolumeAttributeResponse
describeVolumeAttributeResponse pResponseStatus_ =
    DescribeVolumeAttributeResponse'
    { _dvarsVolumeId = Nothing
    , _dvarsProductCodes = Nothing
    , _dvarsAutoEnableIO = Nothing
    , _dvarsResponseStatus = pResponseStatus_
    }

-- | The ID of the volume.
dvarsVolumeId :: Lens' DescribeVolumeAttributeResponse (Maybe Text)
dvarsVolumeId = lens _dvarsVolumeId (\ s a -> s{_dvarsVolumeId = a});

-- | A list of product codes.
dvarsProductCodes :: Lens' DescribeVolumeAttributeResponse [ProductCode]
dvarsProductCodes = lens _dvarsProductCodes (\ s a -> s{_dvarsProductCodes = a}) . _Default . _Coerce;

-- | The state of 'autoEnableIO' attribute.
dvarsAutoEnableIO :: Lens' DescribeVolumeAttributeResponse (Maybe AttributeBooleanValue)
dvarsAutoEnableIO = lens _dvarsAutoEnableIO (\ s a -> s{_dvarsAutoEnableIO = a});

-- | The response status code.
dvarsResponseStatus :: Lens' DescribeVolumeAttributeResponse Int
dvarsResponseStatus = lens _dvarsResponseStatus (\ s a -> s{_dvarsResponseStatus = a});

instance NFData DescribeVolumeAttributeResponse