{-# 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.PurchaseReservedInstancesOffering
-- Copyright   : (c) 2013-2018 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay+amazonka@gmail.com>
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Purchases a Reserved Instance for use with your account. With Reserved Instances, you pay a lower hourly rate compared to On-Demand instance pricing.
--
--
-- Use 'DescribeReservedInstancesOfferings' to get a list of Reserved Instance offerings that match your specifications. After you've purchased a Reserved Instance, you can check for your new Reserved Instance with 'DescribeReservedInstances' .
--
-- For more information, see <http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/concepts-on-demand-reserved-instances.html Reserved Instances> and <http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ri-market-general.html Reserved Instance Marketplace> in the /Amazon Elastic Compute Cloud User Guide/ .
--
module Network.AWS.EC2.PurchaseReservedInstancesOffering
    (
    -- * Creating a Request
      purchaseReservedInstancesOffering
    , PurchaseReservedInstancesOffering
    -- * Request Lenses
    , prioLimitPrice
    , prioDryRun
    , prioInstanceCount
    , prioReservedInstancesOfferingId

    -- * Destructuring the Response
    , purchaseReservedInstancesOfferingResponse
    , PurchaseReservedInstancesOfferingResponse
    -- * Response Lenses
    , priorsReservedInstancesId
    , priorsResponseStatus
    ) 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 PurchaseReservedInstancesOffering.
--
--
--
-- /See:/ 'purchaseReservedInstancesOffering' smart constructor.
data PurchaseReservedInstancesOffering = PurchaseReservedInstancesOffering'
  { _prioLimitPrice                  :: !(Maybe ReservedInstanceLimitPrice)
  , _prioDryRun                      :: !(Maybe Bool)
  , _prioInstanceCount               :: !Int
  , _prioReservedInstancesOfferingId :: !Text
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'PurchaseReservedInstancesOffering' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'prioLimitPrice' - Specified for Reserved Instance Marketplace offerings to limit the total order and ensure that the Reserved Instances are not purchased at unexpected prices.
--
-- * 'prioDryRun' - 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@ .
--
-- * 'prioInstanceCount' - The number of Reserved Instances to purchase.
--
-- * 'prioReservedInstancesOfferingId' - The ID of the Reserved Instance offering to purchase.
purchaseReservedInstancesOffering
    :: Int -- ^ 'prioInstanceCount'
    -> Text -- ^ 'prioReservedInstancesOfferingId'
    -> PurchaseReservedInstancesOffering
purchaseReservedInstancesOffering pInstanceCount_ pReservedInstancesOfferingId_ =
  PurchaseReservedInstancesOffering'
    { _prioLimitPrice = Nothing
    , _prioDryRun = Nothing
    , _prioInstanceCount = pInstanceCount_
    , _prioReservedInstancesOfferingId = pReservedInstancesOfferingId_
    }


-- | Specified for Reserved Instance Marketplace offerings to limit the total order and ensure that the Reserved Instances are not purchased at unexpected prices.
prioLimitPrice :: Lens' PurchaseReservedInstancesOffering (Maybe ReservedInstanceLimitPrice)
prioLimitPrice = lens _prioLimitPrice (\ s a -> s{_prioLimitPrice = 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@ .
prioDryRun :: Lens' PurchaseReservedInstancesOffering (Maybe Bool)
prioDryRun = lens _prioDryRun (\ s a -> s{_prioDryRun = a})

-- | The number of Reserved Instances to purchase.
prioInstanceCount :: Lens' PurchaseReservedInstancesOffering Int
prioInstanceCount = lens _prioInstanceCount (\ s a -> s{_prioInstanceCount = a})

-- | The ID of the Reserved Instance offering to purchase.
prioReservedInstancesOfferingId :: Lens' PurchaseReservedInstancesOffering Text
prioReservedInstancesOfferingId = lens _prioReservedInstancesOfferingId (\ s a -> s{_prioReservedInstancesOfferingId = a})

instance AWSRequest PurchaseReservedInstancesOffering
         where
        type Rs PurchaseReservedInstancesOffering =
             PurchaseReservedInstancesOfferingResponse
        request = postQuery ec2
        response
          = receiveXML
              (\ s h x ->
                 PurchaseReservedInstancesOfferingResponse' <$>
                   (x .@? "reservedInstancesId") <*>
                     (pure (fromEnum s)))

instance Hashable PurchaseReservedInstancesOffering
         where

instance NFData PurchaseReservedInstancesOffering
         where

instance ToHeaders PurchaseReservedInstancesOffering
         where
        toHeaders = const mempty

instance ToPath PurchaseReservedInstancesOffering
         where
        toPath = const "/"

instance ToQuery PurchaseReservedInstancesOffering
         where
        toQuery PurchaseReservedInstancesOffering'{..}
          = mconcat
              ["Action" =:
                 ("PurchaseReservedInstancesOffering" :: ByteString),
               "Version" =: ("2016-11-15" :: ByteString),
               "LimitPrice" =: _prioLimitPrice,
               "DryRun" =: _prioDryRun,
               "InstanceCount" =: _prioInstanceCount,
               "ReservedInstancesOfferingId" =:
                 _prioReservedInstancesOfferingId]

-- | Contains the output of PurchaseReservedInstancesOffering.
--
--
--
-- /See:/ 'purchaseReservedInstancesOfferingResponse' smart constructor.
data PurchaseReservedInstancesOfferingResponse = PurchaseReservedInstancesOfferingResponse'
  { _priorsReservedInstancesId :: !(Maybe Text)
  , _priorsResponseStatus      :: !Int
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'PurchaseReservedInstancesOfferingResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'priorsReservedInstancesId' - The IDs of the purchased Reserved Instances.
--
-- * 'priorsResponseStatus' - -- | The response status code.
purchaseReservedInstancesOfferingResponse
    :: Int -- ^ 'priorsResponseStatus'
    -> PurchaseReservedInstancesOfferingResponse
purchaseReservedInstancesOfferingResponse pResponseStatus_ =
  PurchaseReservedInstancesOfferingResponse'
    { _priorsReservedInstancesId = Nothing
    , _priorsResponseStatus = pResponseStatus_
    }


-- | The IDs of the purchased Reserved Instances.
priorsReservedInstancesId :: Lens' PurchaseReservedInstancesOfferingResponse (Maybe Text)
priorsReservedInstancesId = lens _priorsReservedInstancesId (\ s a -> s{_priorsReservedInstancesId = a})

-- | -- | The response status code.
priorsResponseStatus :: Lens' PurchaseReservedInstancesOfferingResponse Int
priorsResponseStatus = lens _priorsResponseStatus (\ s a -> s{_priorsResponseStatus = a})

instance NFData
           PurchaseReservedInstancesOfferingResponse
         where