{-# 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.ApplicationAutoScaling.DeleteScalingPolicy
-- 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)
--
-- Deletes an Application Auto Scaling scaling policy that was previously
-- created. If you are no longer using a scaling policy, you can delete it
-- with this operation.
--
-- Deleting a policy deletes the underlying alarm action, but does not
-- delete the CloudWatch alarm, even if it no longer has an associated
-- action.
--
-- To create a new scaling policy or update an existing one, see
-- < PutScalingPolicy>.
module Network.AWS.ApplicationAutoScaling.DeleteScalingPolicy
    (
    -- * Creating a Request
      deleteScalingPolicy
    , DeleteScalingPolicy
    -- * Request Lenses
    , dspPolicyName
    , dspServiceNamespace
    , dspResourceId
    , dspScalableDimension

    -- * Destructuring the Response
    , deleteScalingPolicyResponse
    , DeleteScalingPolicyResponse
    -- * Response Lenses
    , dsprsResponseStatus
    ) where

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

-- | /See:/ 'deleteScalingPolicy' smart constructor.
data DeleteScalingPolicy = DeleteScalingPolicy'
    { _dspPolicyName        :: !Text
    , _dspServiceNamespace  :: !ServiceNamespace
    , _dspResourceId        :: !Text
    , _dspScalableDimension :: !ScalableDimension
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DeleteScalingPolicy' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dspPolicyName'
--
-- * 'dspServiceNamespace'
--
-- * 'dspResourceId'
--
-- * 'dspScalableDimension'
deleteScalingPolicy
    :: Text -- ^ 'dspPolicyName'
    -> ServiceNamespace -- ^ 'dspServiceNamespace'
    -> Text -- ^ 'dspResourceId'
    -> ScalableDimension -- ^ 'dspScalableDimension'
    -> DeleteScalingPolicy
deleteScalingPolicy pPolicyName_ pServiceNamespace_ pResourceId_ pScalableDimension_ =
    DeleteScalingPolicy'
    { _dspPolicyName = pPolicyName_
    , _dspServiceNamespace = pServiceNamespace_
    , _dspResourceId = pResourceId_
    , _dspScalableDimension = pScalableDimension_
    }

-- | The name of the scaling policy to delete.
dspPolicyName :: Lens' DeleteScalingPolicy Text
dspPolicyName = lens _dspPolicyName (\ s a -> s{_dspPolicyName = a});

-- | The namespace for the AWS service that the scaling policy is associated
-- with. For more information, see
-- <http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html#genref-aws-service-namespaces AWS Service Namespaces>
-- in the Amazon Web Services General Reference.
dspServiceNamespace :: Lens' DeleteScalingPolicy ServiceNamespace
dspServiceNamespace = lens _dspServiceNamespace (\ s a -> s{_dspServiceNamespace = a});

-- | The unique identifier string for the resource associated with the
-- scaling policy. For Amazon ECS services, this value is the resource
-- type, followed by the cluster name and service name, such as
-- 'service\/default\/sample-webapp'.
dspResourceId :: Lens' DeleteScalingPolicy Text
dspResourceId = lens _dspResourceId (\ s a -> s{_dspResourceId = a});

-- | The scalable dimension associated with the scaling policy. The scalable
-- dimension contains the service namespace, resource type, and scaling
-- property, such as 'ecs:service:DesiredCount' for the desired task count
-- of an Amazon ECS service.
dspScalableDimension :: Lens' DeleteScalingPolicy ScalableDimension
dspScalableDimension = lens _dspScalableDimension (\ s a -> s{_dspScalableDimension = a});

instance AWSRequest DeleteScalingPolicy where
        type Rs DeleteScalingPolicy =
             DeleteScalingPolicyResponse
        request = postJSON applicationAutoScaling
        response
          = receiveEmpty
              (\ s h x ->
                 DeleteScalingPolicyResponse' <$> (pure (fromEnum s)))

instance Hashable DeleteScalingPolicy

instance NFData DeleteScalingPolicy

instance ToHeaders DeleteScalingPolicy where
        toHeaders
          = const
              (mconcat
                 ["X-Amz-Target" =#
                    ("AnyScaleFrontendService.DeleteScalingPolicy" ::
                       ByteString),
                  "Content-Type" =#
                    ("application/x-amz-json-1.1" :: ByteString)])

instance ToJSON DeleteScalingPolicy where
        toJSON DeleteScalingPolicy'{..}
          = object
              (catMaybes
                 [Just ("PolicyName" .= _dspPolicyName),
                  Just ("ServiceNamespace" .= _dspServiceNamespace),
                  Just ("ResourceId" .= _dspResourceId),
                  Just ("ScalableDimension" .= _dspScalableDimension)])

instance ToPath DeleteScalingPolicy where
        toPath = const "/"

instance ToQuery DeleteScalingPolicy where
        toQuery = const mempty

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

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

-- | The response status code.
dsprsResponseStatus :: Lens' DeleteScalingPolicyResponse Int
dsprsResponseStatus = lens _dsprsResponseStatus (\ s a -> s{_dsprsResponseStatus = a});

instance NFData DeleteScalingPolicyResponse