{-# 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.CloudTrail.ListTags
-- 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 tags for the specified trail or trails in the current region.
--
-- Lists the tags for the trail in the current region.
module Network.AWS.CloudTrail.ListTags
    (
    -- * Creating a Request
      listTags
    , ListTags
    -- * Request Lenses
    , ltNextToken
    , ltResourceIdList

    -- * Destructuring the Response
    , listTagsResponse
    , ListTagsResponse
    -- * Response Lenses
    , ltrsNextToken
    , ltrsResourceTagList
    , ltrsResponseStatus
    ) where

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

-- | Specifies a list of trail tags to return.
--
-- /See:/ 'listTags' smart constructor.
data ListTags = ListTags'
    { _ltNextToken      :: !(Maybe Text)
    , _ltResourceIdList :: ![Text]
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListTags' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'ltNextToken'
--
-- * 'ltResourceIdList'
listTags
    :: ListTags
listTags =
    ListTags'
    { _ltNextToken = Nothing
    , _ltResourceIdList = mempty
    }

-- | Reserved for future use.
ltNextToken :: Lens' ListTags (Maybe Text)
ltNextToken = lens _ltNextToken (\ s a -> s{_ltNextToken = a});

-- | Specifies a list of trail ARNs whose tags will be listed. The list has a
-- limit of 20 ARNs. The format of a trail ARN is
-- 'arn:aws:cloudtrail:us-east-1:123456789012:trail\/MyTrail'.
ltResourceIdList :: Lens' ListTags [Text]
ltResourceIdList = lens _ltResourceIdList (\ s a -> s{_ltResourceIdList = a}) . _Coerce;

instance AWSRequest ListTags where
        type Rs ListTags = ListTagsResponse
        request = postJSON cloudTrail
        response
          = receiveJSON
              (\ s h x ->
                 ListTagsResponse' <$>
                   (x .?> "NextToken") <*>
                     (x .?> "ResourceTagList" .!@ mempty)
                     <*> (pure (fromEnum s)))

instance Hashable ListTags

instance ToHeaders ListTags where
        toHeaders
          = const
              (mconcat
                 ["X-Amz-Target" =#
                    ("com.amazonaws.cloudtrail.v20131101.CloudTrail_20131101.ListTags"
                       :: ByteString),
                  "Content-Type" =#
                    ("application/x-amz-json-1.1" :: ByteString)])

instance ToJSON ListTags where
        toJSON ListTags'{..}
          = object
              (catMaybes
                 [("NextToken" .=) <$> _ltNextToken,
                  Just ("ResourceIdList" .= _ltResourceIdList)])

instance ToPath ListTags where
        toPath = const "/"

instance ToQuery ListTags where
        toQuery = const mempty

-- | Returns the objects or data listed below if successful. Otherwise,
-- returns an error.
--
-- /See:/ 'listTagsResponse' smart constructor.
data ListTagsResponse = ListTagsResponse'
    { _ltrsNextToken       :: !(Maybe Text)
    , _ltrsResourceTagList :: !(Maybe [ResourceTag])
    , _ltrsResponseStatus  :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListTagsResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'ltrsNextToken'
--
-- * 'ltrsResourceTagList'
--
-- * 'ltrsResponseStatus'
listTagsResponse
    :: Int -- ^ 'ltrsResponseStatus'
    -> ListTagsResponse
listTagsResponse pResponseStatus_ =
    ListTagsResponse'
    { _ltrsNextToken = Nothing
    , _ltrsResourceTagList = Nothing
    , _ltrsResponseStatus = pResponseStatus_
    }

-- | Reserved for future use.
ltrsNextToken :: Lens' ListTagsResponse (Maybe Text)
ltrsNextToken = lens _ltrsNextToken (\ s a -> s{_ltrsNextToken = a});

-- | Undocumented member.
ltrsResourceTagList :: Lens' ListTagsResponse [ResourceTag]
ltrsResourceTagList = lens _ltrsResourceTagList (\ s a -> s{_ltrsResourceTagList = a}) . _Default . _Coerce;

-- | The response status code.
ltrsResponseStatus :: Lens' ListTagsResponse Int
ltrsResponseStatus = lens _ltrsResponseStatus (\ s a -> s{_ltrsResponseStatus = a});