{-# 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.Redshift.PurchaseReservedNodeOffering
-- Copyright   : (c) 2013-2015 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)
--
-- Allows you to purchase reserved nodes. Amazon Redshift offers a
-- predefined set of reserved node offerings. You can purchase one or more
-- of the offerings. You can call the DescribeReservedNodeOfferings API to
-- obtain the available reserved node offerings. You can call this API by
-- providing a specific reserved node offering and the number of nodes you
-- want to reserve.
--
-- For more information about reserved node offerings, go to
-- <http://docs.aws.amazon.com/redshift/latest/mgmt/purchase-reserved-node-instance.html Purchasing Reserved Nodes>
-- in the /Amazon Redshift Cluster Management Guide/.
--
-- /See:/ <http://docs.aws.amazon.com/redshift/latest/APIReference/API_PurchaseReservedNodeOffering.html AWS API Reference> for PurchaseReservedNodeOffering.
module Network.AWS.Redshift.PurchaseReservedNodeOffering
    (
    -- * Creating a Request
      purchaseReservedNodeOffering
    , PurchaseReservedNodeOffering
    -- * Request Lenses
    , prnoNodeCount
    , prnoReservedNodeOfferingId

    -- * Destructuring the Response
    , purchaseReservedNodeOfferingResponse
    , PurchaseReservedNodeOfferingResponse
    -- * Response Lenses
    , prnorsReservedNode
    , prnorsResponseStatus
    ) where

import           Network.AWS.Prelude
import           Network.AWS.Redshift.Types
import           Network.AWS.Redshift.Types.Product
import           Network.AWS.Request
import           Network.AWS.Response

-- |
--
-- /See:/ 'purchaseReservedNodeOffering' smart constructor.
data PurchaseReservedNodeOffering = PurchaseReservedNodeOffering'
    { _prnoNodeCount              :: !(Maybe Int)
    , _prnoReservedNodeOfferingId :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'PurchaseReservedNodeOffering' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'prnoNodeCount'
--
-- * 'prnoReservedNodeOfferingId'
purchaseReservedNodeOffering
    :: Text -- ^ 'prnoReservedNodeOfferingId'
    -> PurchaseReservedNodeOffering
purchaseReservedNodeOffering pReservedNodeOfferingId_ =
    PurchaseReservedNodeOffering'
    { _prnoNodeCount = Nothing
    , _prnoReservedNodeOfferingId = pReservedNodeOfferingId_
    }

-- | The number of reserved nodes you want to purchase.
--
-- Default: '1'
prnoNodeCount :: Lens' PurchaseReservedNodeOffering (Maybe Int)
prnoNodeCount = lens _prnoNodeCount (\ s a -> s{_prnoNodeCount = a});

-- | The unique identifier of the reserved node offering you want to
-- purchase.
prnoReservedNodeOfferingId :: Lens' PurchaseReservedNodeOffering Text
prnoReservedNodeOfferingId = lens _prnoReservedNodeOfferingId (\ s a -> s{_prnoReservedNodeOfferingId = a});

instance AWSRequest PurchaseReservedNodeOffering
         where
        type Rs PurchaseReservedNodeOffering =
             PurchaseReservedNodeOfferingResponse
        request = postQuery redshift
        response
          = receiveXMLWrapper
              "PurchaseReservedNodeOfferingResult"
              (\ s h x ->
                 PurchaseReservedNodeOfferingResponse' <$>
                   (x .@? "ReservedNode") <*> (pure (fromEnum s)))

instance ToHeaders PurchaseReservedNodeOffering where
        toHeaders = const mempty

instance ToPath PurchaseReservedNodeOffering where
        toPath = const "/"

instance ToQuery PurchaseReservedNodeOffering where
        toQuery PurchaseReservedNodeOffering'{..}
          = mconcat
              ["Action" =:
                 ("PurchaseReservedNodeOffering" :: ByteString),
               "Version" =: ("2012-12-01" :: ByteString),
               "NodeCount" =: _prnoNodeCount,
               "ReservedNodeOfferingId" =:
                 _prnoReservedNodeOfferingId]

-- | /See:/ 'purchaseReservedNodeOfferingResponse' smart constructor.
data PurchaseReservedNodeOfferingResponse = PurchaseReservedNodeOfferingResponse'
    { _prnorsReservedNode   :: !(Maybe ReservedNode)
    , _prnorsResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'PurchaseReservedNodeOfferingResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'prnorsReservedNode'
--
-- * 'prnorsResponseStatus'
purchaseReservedNodeOfferingResponse
    :: Int -- ^ 'prnorsResponseStatus'
    -> PurchaseReservedNodeOfferingResponse
purchaseReservedNodeOfferingResponse pResponseStatus_ =
    PurchaseReservedNodeOfferingResponse'
    { _prnorsReservedNode = Nothing
    , _prnorsResponseStatus = pResponseStatus_
    }

-- | Undocumented member.
prnorsReservedNode :: Lens' PurchaseReservedNodeOfferingResponse (Maybe ReservedNode)
prnorsReservedNode = lens _prnorsReservedNode (\ s a -> s{_prnorsReservedNode = a});

-- | The response status code.
prnorsResponseStatus :: Lens' PurchaseReservedNodeOfferingResponse Int
prnorsResponseStatus = lens _prnorsResponseStatus (\ s a -> s{_prnorsResponseStatus = a});
