{-# 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.AutoScaling.RecordLifecycleActionHeartbeat
-- 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)
--
-- Records a heartbeat for the lifecycle action associated with the
-- specified token or instance. This extends the timeout by the length of
-- time defined using < PutLifecycleHook>.
--
-- This step is a part of the procedure for adding a lifecycle hook to an
-- Auto Scaling group:
--
-- 1.  (Optional) Create a Lambda function and a rule that allows
--     CloudWatch Events to invoke your Lambda function when Auto Scaling
--     launches or terminates instances.
-- 2.  (Optional) Create a notification target and an IAM role. The target
--     can be either an Amazon SQS queue or an Amazon SNS topic. The role
--     allows Auto Scaling to publish lifecycle notifications to the
--     target.
-- 3.  Create the lifecycle hook. Specify whether the hook is used when the
--     instances launch or terminate.
-- 4.  __If you need more time, record the lifecycle action heartbeat to
--     keep the instance in a pending state.__
-- 5.  If you finish before the timeout period ends, complete the lifecycle
--     action.
--
-- For more information, see
-- <http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/AutoScalingGroupLifecycle.html Auto Scaling Lifecycle>
-- in the /Auto Scaling Developer Guide/.
module Network.AWS.AutoScaling.RecordLifecycleActionHeartbeat
    (
    -- * Creating a Request
      recordLifecycleActionHeartbeat
    , RecordLifecycleActionHeartbeat
    -- * Request Lenses
    , rlahInstanceId
    , rlahLifecycleActionToken
    , rlahLifecycleHookName
    , rlahAutoScalingGroupName

    -- * Destructuring the Response
    , recordLifecycleActionHeartbeatResponse
    , RecordLifecycleActionHeartbeatResponse
    -- * Response Lenses
    , rlahrsResponseStatus
    ) where

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

-- | /See:/ 'recordLifecycleActionHeartbeat' smart constructor.
data RecordLifecycleActionHeartbeat = RecordLifecycleActionHeartbeat'
    { _rlahInstanceId           :: !(Maybe Text)
    , _rlahLifecycleActionToken :: !(Maybe Text)
    , _rlahLifecycleHookName    :: !Text
    , _rlahAutoScalingGroupName :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'RecordLifecycleActionHeartbeat' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'rlahInstanceId'
--
-- * 'rlahLifecycleActionToken'
--
-- * 'rlahLifecycleHookName'
--
-- * 'rlahAutoScalingGroupName'
recordLifecycleActionHeartbeat
    :: Text -- ^ 'rlahLifecycleHookName'
    -> Text -- ^ 'rlahAutoScalingGroupName'
    -> RecordLifecycleActionHeartbeat
recordLifecycleActionHeartbeat pLifecycleHookName_ pAutoScalingGroupName_ =
    RecordLifecycleActionHeartbeat'
    { _rlahInstanceId = Nothing
    , _rlahLifecycleActionToken = Nothing
    , _rlahLifecycleHookName = pLifecycleHookName_
    , _rlahAutoScalingGroupName = pAutoScalingGroupName_
    }

-- | The ID of the instance.
rlahInstanceId :: Lens' RecordLifecycleActionHeartbeat (Maybe Text)
rlahInstanceId = lens _rlahInstanceId (\ s a -> s{_rlahInstanceId = a});

-- | A token that uniquely identifies a specific lifecycle action associated
-- with an instance. Auto Scaling sends this token to the notification
-- target you specified when you created the lifecycle hook.
rlahLifecycleActionToken :: Lens' RecordLifecycleActionHeartbeat (Maybe Text)
rlahLifecycleActionToken = lens _rlahLifecycleActionToken (\ s a -> s{_rlahLifecycleActionToken = a});

-- | The name of the lifecycle hook.
rlahLifecycleHookName :: Lens' RecordLifecycleActionHeartbeat Text
rlahLifecycleHookName = lens _rlahLifecycleHookName (\ s a -> s{_rlahLifecycleHookName = a});

-- | The name of the Auto Scaling group for the hook.
rlahAutoScalingGroupName :: Lens' RecordLifecycleActionHeartbeat Text
rlahAutoScalingGroupName = lens _rlahAutoScalingGroupName (\ s a -> s{_rlahAutoScalingGroupName = a});

instance AWSRequest RecordLifecycleActionHeartbeat
         where
        type Rs RecordLifecycleActionHeartbeat =
             RecordLifecycleActionHeartbeatResponse
        request = postQuery autoScaling
        response
          = receiveXMLWrapper
              "RecordLifecycleActionHeartbeatResult"
              (\ s h x ->
                 RecordLifecycleActionHeartbeatResponse' <$>
                   (pure (fromEnum s)))

instance Hashable RecordLifecycleActionHeartbeat

instance ToHeaders RecordLifecycleActionHeartbeat
         where
        toHeaders = const mempty

instance ToPath RecordLifecycleActionHeartbeat where
        toPath = const "/"

instance ToQuery RecordLifecycleActionHeartbeat where
        toQuery RecordLifecycleActionHeartbeat'{..}
          = mconcat
              ["Action" =:
                 ("RecordLifecycleActionHeartbeat" :: ByteString),
               "Version" =: ("2011-01-01" :: ByteString),
               "InstanceId" =: _rlahInstanceId,
               "LifecycleActionToken" =: _rlahLifecycleActionToken,
               "LifecycleHookName" =: _rlahLifecycleHookName,
               "AutoScalingGroupName" =: _rlahAutoScalingGroupName]

-- | /See:/ 'recordLifecycleActionHeartbeatResponse' smart constructor.
newtype RecordLifecycleActionHeartbeatResponse = RecordLifecycleActionHeartbeatResponse'
    { _rlahrsResponseStatus :: Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'RecordLifecycleActionHeartbeatResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'rlahrsResponseStatus'
recordLifecycleActionHeartbeatResponse
    :: Int -- ^ 'rlahrsResponseStatus'
    -> RecordLifecycleActionHeartbeatResponse
recordLifecycleActionHeartbeatResponse pResponseStatus_ =
    RecordLifecycleActionHeartbeatResponse'
    { _rlahrsResponseStatus = pResponseStatus_
    }

-- | The response status code.
rlahrsResponseStatus :: Lens' RecordLifecycleActionHeartbeatResponse Int
rlahrsResponseStatus = lens _rlahrsResponseStatus (\ s a -> s{_rlahrsResponseStatus = a});