{-# 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.EMR.DescribeCluster
-- 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)
--
-- Provides cluster-level details including status, hardware and software configuration, VPC settings, and so on. For information about the cluster steps, see 'ListSteps' .
--
--
module Network.AWS.EMR.DescribeCluster
    (
    -- * Creating a Request
      describeCluster
    , DescribeCluster
    -- * Request Lenses
    , dcClusterId

    -- * Destructuring the Response
    , describeClusterResponse
    , DescribeClusterResponse
    -- * Response Lenses
    , dcrsResponseStatus
    , dcrsCluster
    ) where

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

-- | This input determines which cluster to describe.
--
--
--
-- /See:/ 'describeCluster' smart constructor.
newtype DescribeCluster = DescribeCluster'
  { _dcClusterId :: Text
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'DescribeCluster' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dcClusterId' - The identifier of the cluster to describe.
describeCluster
    :: Text -- ^ 'dcClusterId'
    -> DescribeCluster
describeCluster pClusterId_ = DescribeCluster' {_dcClusterId = pClusterId_}


-- | The identifier of the cluster to describe.
dcClusterId :: Lens' DescribeCluster Text
dcClusterId = lens _dcClusterId (\ s a -> s{_dcClusterId = a})

instance AWSRequest DescribeCluster where
        type Rs DescribeCluster = DescribeClusterResponse
        request = postJSON emr
        response
          = receiveJSON
              (\ s h x ->
                 DescribeClusterResponse' <$>
                   (pure (fromEnum s)) <*> (x .:> "Cluster"))

instance Hashable DescribeCluster where

instance NFData DescribeCluster where

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

instance ToJSON DescribeCluster where
        toJSON DescribeCluster'{..}
          = object
              (catMaybes [Just ("ClusterId" .= _dcClusterId)])

instance ToPath DescribeCluster where
        toPath = const "/"

instance ToQuery DescribeCluster where
        toQuery = const mempty

-- | This output contains the description of the cluster.
--
--
--
-- /See:/ 'describeClusterResponse' smart constructor.
data DescribeClusterResponse = DescribeClusterResponse'
  { _dcrsResponseStatus :: !Int
  , _dcrsCluster        :: !Cluster
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'DescribeClusterResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dcrsResponseStatus' - -- | The response status code.
--
-- * 'dcrsCluster' - This output contains the details for the requested cluster.
describeClusterResponse
    :: Int -- ^ 'dcrsResponseStatus'
    -> Cluster -- ^ 'dcrsCluster'
    -> DescribeClusterResponse
describeClusterResponse pResponseStatus_ pCluster_ =
  DescribeClusterResponse'
    {_dcrsResponseStatus = pResponseStatus_, _dcrsCluster = pCluster_}


-- | -- | The response status code.
dcrsResponseStatus :: Lens' DescribeClusterResponse Int
dcrsResponseStatus = lens _dcrsResponseStatus (\ s a -> s{_dcrsResponseStatus = a})

-- | This output contains the details for the requested cluster.
dcrsCluster :: Lens' DescribeClusterResponse Cluster
dcrsCluster = lens _dcrsCluster (\ s a -> s{_dcrsCluster = a})

instance NFData DescribeClusterResponse where