{-# 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.DeleteCluster
-- 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 a previously provisioned cluster. A successful response from the web service indicates that the request was received correctly. Use < DescribeClusters> to monitor the status of the deletion. The delete operation cannot be canceled or reverted once submitted. For more information about managing clusters, go to <http://docs.aws.amazon.com/redshift/latest/mgmt/working-with-clusters.html Amazon Redshift Clusters> in the /Amazon Redshift Cluster Management Guide/ .
--
-- If you want to shut down the cluster and retain it for future use, set /SkipFinalClusterSnapshot/ to 'false' and specify a name for /FinalClusterSnapshotIdentifier/. You can later restore this snapshot to resume using the cluster. If a final cluster snapshot is requested, the status of the cluster will be \"final-snapshot\" while the snapshot is being taken, then it\'s \"deleting\" once Amazon Redshift begins deleting the cluster.
--
-- For more information about managing clusters, go to <http://docs.aws.amazon.com/redshift/latest/mgmt/working-with-clusters.html Amazon Redshift Clusters> in the /Amazon Redshift Cluster Management Guide/ .
module Network.AWS.Redshift.DeleteCluster
    (
    -- * Creating a Request
      deleteCluster
    , DeleteCluster
    -- * Request Lenses
    , delSkipFinalClusterSnapshot
    , delFinalClusterSnapshotIdentifier
    , delClusterIdentifier

    -- * Destructuring the Response
    , deleteClusterResponse
    , DeleteClusterResponse
    -- * Response Lenses
    , drsCluster
    , drsResponseStatus
    ) where

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

-- |
--
-- /See:/ 'deleteCluster' smart constructor.
data DeleteCluster = DeleteCluster'
    { _delSkipFinalClusterSnapshot       :: !(Maybe Bool)
    , _delFinalClusterSnapshotIdentifier :: !(Maybe Text)
    , _delClusterIdentifier              :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DeleteCluster' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'delSkipFinalClusterSnapshot'
--
-- * 'delFinalClusterSnapshotIdentifier'
--
-- * 'delClusterIdentifier'
deleteCluster
    :: Text -- ^ 'delClusterIdentifier'
    -> DeleteCluster
deleteCluster pClusterIdentifier_ =
    DeleteCluster'
    { _delSkipFinalClusterSnapshot = Nothing
    , _delFinalClusterSnapshotIdentifier = Nothing
    , _delClusterIdentifier = pClusterIdentifier_
    }

-- | Determines whether a final snapshot of the cluster is created before Amazon Redshift deletes the cluster. If 'true', a final cluster snapshot is not created. If 'false', a final cluster snapshot is created before the cluster is deleted.
--
-- The /FinalClusterSnapshotIdentifier/ parameter must be specified if /SkipFinalClusterSnapshot/ is 'false'.
--
-- Default: 'false'
delSkipFinalClusterSnapshot :: Lens' DeleteCluster (Maybe Bool)
delSkipFinalClusterSnapshot = lens _delSkipFinalClusterSnapshot (\ s a -> s{_delSkipFinalClusterSnapshot = a});

-- | The identifier of the final snapshot that is to be created immediately before deleting the cluster. If this parameter is provided, /SkipFinalClusterSnapshot/ must be 'false'.
--
-- Constraints:
--
-- -   Must be 1 to 255 alphanumeric characters.
-- -   First character must be a letter.
-- -   Cannot end with a hyphen or contain two consecutive hyphens.
delFinalClusterSnapshotIdentifier :: Lens' DeleteCluster (Maybe Text)
delFinalClusterSnapshotIdentifier = lens _delFinalClusterSnapshotIdentifier (\ s a -> s{_delFinalClusterSnapshotIdentifier = a});

-- | The identifier of the cluster to be deleted.
--
-- Constraints:
--
-- -   Must contain lowercase characters.
-- -   Must contain from 1 to 63 alphanumeric characters or hyphens.
-- -   First character must be a letter.
-- -   Cannot end with a hyphen or contain two consecutive hyphens.
delClusterIdentifier :: Lens' DeleteCluster Text
delClusterIdentifier = lens _delClusterIdentifier (\ s a -> s{_delClusterIdentifier = a});

instance AWSRequest DeleteCluster where
        type Rs DeleteCluster = DeleteClusterResponse
        request = postQuery redshift
        response
          = receiveXMLWrapper "DeleteClusterResult"
              (\ s h x ->
                 DeleteClusterResponse' <$>
                   (x .@? "Cluster") <*> (pure (fromEnum s)))

instance Hashable DeleteCluster

instance NFData DeleteCluster

instance ToHeaders DeleteCluster where
        toHeaders = const mempty

instance ToPath DeleteCluster where
        toPath = const "/"

instance ToQuery DeleteCluster where
        toQuery DeleteCluster'{..}
          = mconcat
              ["Action" =: ("DeleteCluster" :: ByteString),
               "Version" =: ("2012-12-01" :: ByteString),
               "SkipFinalClusterSnapshot" =:
                 _delSkipFinalClusterSnapshot,
               "FinalClusterSnapshotIdentifier" =:
                 _delFinalClusterSnapshotIdentifier,
               "ClusterIdentifier" =: _delClusterIdentifier]

-- | /See:/ 'deleteClusterResponse' smart constructor.
data DeleteClusterResponse = DeleteClusterResponse'
    { _drsCluster        :: !(Maybe Cluster)
    , _drsResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DeleteClusterResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'drsCluster'
--
-- * 'drsResponseStatus'
deleteClusterResponse
    :: Int -- ^ 'drsResponseStatus'
    -> DeleteClusterResponse
deleteClusterResponse pResponseStatus_ =
    DeleteClusterResponse'
    { _drsCluster = Nothing
    , _drsResponseStatus = pResponseStatus_
    }

-- | Undocumented member.
drsCluster :: Lens' DeleteClusterResponse (Maybe Cluster)
drsCluster = lens _drsCluster (\ s a -> s{_drsCluster = a});

-- | The response status code.
drsResponseStatus :: Lens' DeleteClusterResponse Int
drsResponseStatus = lens _drsResponseStatus (\ s a -> s{_drsResponseStatus = a});

instance NFData DeleteClusterResponse