{-# 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.ElastiCache.DeleteReplicationGroup
-- Copyright   : (c) 2013-2017 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)
--
-- Deletes an existing replication group. By default, this operation deletes the entire replication group, including the primary/primaries and all of the read replicas. If the replication group has only one primary, you can optionally delete only the read replicas, while retaining the primary by setting @RetainPrimaryCluster=true@ .
--
--
-- When you receive a successful response from this operation, Amazon ElastiCache immediately begins deleting the selected resources; you cannot cancel or revert this operation.
--
module Network.AWS.ElastiCache.DeleteReplicationGroup
    (
    -- * Creating a Request
      deleteReplicationGroup
    , DeleteReplicationGroup
    -- * Request Lenses
    , drgFinalSnapshotIdentifier
    , drgRetainPrimaryCluster
    , drgReplicationGroupId

    -- * Destructuring the Response
    , deleteReplicationGroupResponse
    , DeleteReplicationGroupResponse
    -- * Response Lenses
    , delrsReplicationGroup
    , delrsResponseStatus
    ) where

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

-- | Represents the input of a @DeleteReplicationGroup@ operation.
--
--
--
-- /See:/ 'deleteReplicationGroup' smart constructor.
data DeleteReplicationGroup = DeleteReplicationGroup'
  { _drgFinalSnapshotIdentifier :: !(Maybe Text)
  , _drgRetainPrimaryCluster    :: !(Maybe Bool)
  , _drgReplicationGroupId      :: !Text
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'DeleteReplicationGroup' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'drgFinalSnapshotIdentifier' - The name of a final node group (shard) snapshot. ElastiCache creates the snapshot from the primary node in the cluster, rather than one of the replicas; this is to ensure that it captures the freshest data. After the final snapshot is taken, the replication group is immediately deleted.
--
-- * 'drgRetainPrimaryCluster' - If set to @true@ , all of the read replicas are deleted, but the primary node is retained.
--
-- * 'drgReplicationGroupId' - The identifier for the cluster to be deleted. This parameter is not case sensitive.
deleteReplicationGroup
    :: Text -- ^ 'drgReplicationGroupId'
    -> DeleteReplicationGroup
deleteReplicationGroup pReplicationGroupId_ =
  DeleteReplicationGroup'
  { _drgFinalSnapshotIdentifier = Nothing
  , _drgRetainPrimaryCluster = Nothing
  , _drgReplicationGroupId = pReplicationGroupId_
  }


-- | The name of a final node group (shard) snapshot. ElastiCache creates the snapshot from the primary node in the cluster, rather than one of the replicas; this is to ensure that it captures the freshest data. After the final snapshot is taken, the replication group is immediately deleted.
drgFinalSnapshotIdentifier :: Lens' DeleteReplicationGroup (Maybe Text)
drgFinalSnapshotIdentifier = lens _drgFinalSnapshotIdentifier (\ s a -> s{_drgFinalSnapshotIdentifier = a});

-- | If set to @true@ , all of the read replicas are deleted, but the primary node is retained.
drgRetainPrimaryCluster :: Lens' DeleteReplicationGroup (Maybe Bool)
drgRetainPrimaryCluster = lens _drgRetainPrimaryCluster (\ s a -> s{_drgRetainPrimaryCluster = a});

-- | The identifier for the cluster to be deleted. This parameter is not case sensitive.
drgReplicationGroupId :: Lens' DeleteReplicationGroup Text
drgReplicationGroupId = lens _drgReplicationGroupId (\ s a -> s{_drgReplicationGroupId = a});

instance AWSRequest DeleteReplicationGroup where
        type Rs DeleteReplicationGroup =
             DeleteReplicationGroupResponse
        request = postQuery elastiCache
        response
          = receiveXMLWrapper "DeleteReplicationGroupResult"
              (\ s h x ->
                 DeleteReplicationGroupResponse' <$>
                   (x .@? "ReplicationGroup") <*> (pure (fromEnum s)))

instance Hashable DeleteReplicationGroup where

instance NFData DeleteReplicationGroup where

instance ToHeaders DeleteReplicationGroup where
        toHeaders = const mempty

instance ToPath DeleteReplicationGroup where
        toPath = const "/"

instance ToQuery DeleteReplicationGroup where
        toQuery DeleteReplicationGroup'{..}
          = mconcat
              ["Action" =:
                 ("DeleteReplicationGroup" :: ByteString),
               "Version" =: ("2015-02-02" :: ByteString),
               "FinalSnapshotIdentifier" =:
                 _drgFinalSnapshotIdentifier,
               "RetainPrimaryCluster" =: _drgRetainPrimaryCluster,
               "ReplicationGroupId" =: _drgReplicationGroupId]

-- | /See:/ 'deleteReplicationGroupResponse' smart constructor.
data DeleteReplicationGroupResponse = DeleteReplicationGroupResponse'
  { _delrsReplicationGroup :: !(Maybe ReplicationGroup)
  , _delrsResponseStatus   :: !Int
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'DeleteReplicationGroupResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'delrsReplicationGroup' - Undocumented member.
--
-- * 'delrsResponseStatus' - -- | The response status code.
deleteReplicationGroupResponse
    :: Int -- ^ 'delrsResponseStatus'
    -> DeleteReplicationGroupResponse
deleteReplicationGroupResponse pResponseStatus_ =
  DeleteReplicationGroupResponse'
  {_delrsReplicationGroup = Nothing, _delrsResponseStatus = pResponseStatus_}


-- | Undocumented member.
delrsReplicationGroup :: Lens' DeleteReplicationGroupResponse (Maybe ReplicationGroup)
delrsReplicationGroup = lens _delrsReplicationGroup (\ s a -> s{_delrsReplicationGroup = a});

-- | -- | The response status code.
delrsResponseStatus :: Lens' DeleteReplicationGroupResponse Int
delrsResponseStatus = lens _delrsResponseStatus (\ s a -> s{_delrsResponseStatus = a});

instance NFData DeleteReplicationGroupResponse where