{-# 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.CloudWatchEvents.ListRuleNamesByTarget
-- 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)
--
-- Lists the names of the rules that the given target is put to. You can see which of the rules in Amazon CloudWatch Events can invoke a specific target in your account. If you have more rules in your account than the given limit, the results will be paginated. In that case, use the next token returned in the response and repeat ListRulesByTarget until the NextToken in the response is returned as null.
module Network.AWS.CloudWatchEvents.ListRuleNamesByTarget
    (
    -- * Creating a Request
      listRuleNamesByTarget
    , ListRuleNamesByTarget
    -- * Request Lenses
    , lrnbtNextToken
    , lrnbtLimit
    , lrnbtTargetARN

    -- * Destructuring the Response
    , listRuleNamesByTargetResponse
    , ListRuleNamesByTargetResponse
    -- * Response Lenses
    , lrnbtrsRuleNames
    , lrnbtrsNextToken
    , lrnbtrsResponseStatus
    ) where

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

-- | Container for the parameters to the < ListRuleNamesByTarget> operation.
--
-- /See:/ 'listRuleNamesByTarget' smart constructor.
data ListRuleNamesByTarget = ListRuleNamesByTarget'
    { _lrnbtNextToken :: !(Maybe Text)
    , _lrnbtLimit     :: !(Maybe Nat)
    , _lrnbtTargetARN :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListRuleNamesByTarget' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'lrnbtNextToken'
--
-- * 'lrnbtLimit'
--
-- * 'lrnbtTargetARN'
listRuleNamesByTarget
    :: Text -- ^ 'lrnbtTargetARN'
    -> ListRuleNamesByTarget
listRuleNamesByTarget pTargetARN_ =
    ListRuleNamesByTarget'
    { _lrnbtNextToken = Nothing
    , _lrnbtLimit = Nothing
    , _lrnbtTargetARN = pTargetARN_
    }

-- | The token returned by a previous call to indicate that there is more data available.
lrnbtNextToken :: Lens' ListRuleNamesByTarget (Maybe Text)
lrnbtNextToken = lens _lrnbtNextToken (\ s a -> s{_lrnbtNextToken = a});

-- | The maximum number of results to return.
lrnbtLimit :: Lens' ListRuleNamesByTarget (Maybe Natural)
lrnbtLimit = lens _lrnbtLimit (\ s a -> s{_lrnbtLimit = a}) . mapping _Nat;

-- | The Amazon Resource Name (ARN) of the target resource that you want to list the rules for.
lrnbtTargetARN :: Lens' ListRuleNamesByTarget Text
lrnbtTargetARN = lens _lrnbtTargetARN (\ s a -> s{_lrnbtTargetARN = a});

instance AWSRequest ListRuleNamesByTarget where
        type Rs ListRuleNamesByTarget =
             ListRuleNamesByTargetResponse
        request = postJSON cloudWatchEvents
        response
          = receiveJSON
              (\ s h x ->
                 ListRuleNamesByTargetResponse' <$>
                   (x .?> "RuleNames" .!@ mempty) <*>
                     (x .?> "NextToken")
                     <*> (pure (fromEnum s)))

instance Hashable ListRuleNamesByTarget

instance NFData ListRuleNamesByTarget

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

instance ToJSON ListRuleNamesByTarget where
        toJSON ListRuleNamesByTarget'{..}
          = object
              (catMaybes
                 [("NextToken" .=) <$> _lrnbtNextToken,
                  ("Limit" .=) <$> _lrnbtLimit,
                  Just ("TargetArn" .= _lrnbtTargetARN)])

instance ToPath ListRuleNamesByTarget where
        toPath = const "/"

instance ToQuery ListRuleNamesByTarget where
        toQuery = const mempty

-- | The result of the < ListRuleNamesByTarget> operation.
--
-- /See:/ 'listRuleNamesByTargetResponse' smart constructor.
data ListRuleNamesByTargetResponse = ListRuleNamesByTargetResponse'
    { _lrnbtrsRuleNames      :: !(Maybe [Text])
    , _lrnbtrsNextToken      :: !(Maybe Text)
    , _lrnbtrsResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListRuleNamesByTargetResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'lrnbtrsRuleNames'
--
-- * 'lrnbtrsNextToken'
--
-- * 'lrnbtrsResponseStatus'
listRuleNamesByTargetResponse
    :: Int -- ^ 'lrnbtrsResponseStatus'
    -> ListRuleNamesByTargetResponse
listRuleNamesByTargetResponse pResponseStatus_ =
    ListRuleNamesByTargetResponse'
    { _lrnbtrsRuleNames = Nothing
    , _lrnbtrsNextToken = Nothing
    , _lrnbtrsResponseStatus = pResponseStatus_
    }

-- | List of rules names that can invoke the given target.
lrnbtrsRuleNames :: Lens' ListRuleNamesByTargetResponse [Text]
lrnbtrsRuleNames = lens _lrnbtrsRuleNames (\ s a -> s{_lrnbtrsRuleNames = a}) . _Default . _Coerce;

-- | Indicates that there are additional results to retrieve.
lrnbtrsNextToken :: Lens' ListRuleNamesByTargetResponse (Maybe Text)
lrnbtrsNextToken = lens _lrnbtrsNextToken (\ s a -> s{_lrnbtrsNextToken = a});

-- | The response status code.
lrnbtrsResponseStatus :: Lens' ListRuleNamesByTargetResponse Int
lrnbtrsResponseStatus = lens _lrnbtrsResponseStatus (\ s a -> s{_lrnbtrsResponseStatus = a});

instance NFData ListRuleNamesByTargetResponse