{-# 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.SNS.SetTopicAttributes
-- Copyright   : (c) 2013-2015 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)
--
-- Allows a topic owner to set an attribute of the topic to a new value.
--
-- /See:/ <http://docs.aws.amazon.com/sns/latest/api/API_SetTopicAttributes.html AWS API Reference> for SetTopicAttributes.
module Network.AWS.SNS.SetTopicAttributes
    (
    -- * Creating a Request
      setTopicAttributes
    , SetTopicAttributes
    -- * Request Lenses
    , staAttributeValue
    , staTopicARN
    , staAttributeName

    -- * Destructuring the Response
    , setTopicAttributesResponse
    , SetTopicAttributesResponse
    ) where

import           Network.AWS.Prelude
import           Network.AWS.Request
import           Network.AWS.Response
import           Network.AWS.SNS.Types
import           Network.AWS.SNS.Types.Product

-- | Input for SetTopicAttributes action.
--
-- /See:/ 'setTopicAttributes' smart constructor.
data SetTopicAttributes = SetTopicAttributes'
    { _staAttributeValue :: !(Maybe Text)
    , _staTopicARN       :: !Text
    , _staAttributeName  :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'SetTopicAttributes' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'staAttributeValue'
--
-- * 'staTopicARN'
--
-- * 'staAttributeName'
setTopicAttributes
    :: Text -- ^ 'staTopicARN'
    -> Text -- ^ 'staAttributeName'
    -> SetTopicAttributes
setTopicAttributes pTopicARN_ pAttributeName_ =
    SetTopicAttributes'
    { _staAttributeValue = Nothing
    , _staTopicARN = pTopicARN_
    , _staAttributeName = pAttributeName_
    }

-- | The new value for the attribute.
staAttributeValue :: Lens' SetTopicAttributes (Maybe Text)
staAttributeValue = lens _staAttributeValue (\ s a -> s{_staAttributeValue = a});

-- | The ARN of the topic to modify.
staTopicARN :: Lens' SetTopicAttributes Text
staTopicARN = lens _staTopicARN (\ s a -> s{_staTopicARN = a});

-- | The name of the attribute you want to set. Only a subset of the topic\'s
-- attributes are mutable.
--
-- Valid values: 'Policy' | 'DisplayName' | 'DeliveryPolicy'
staAttributeName :: Lens' SetTopicAttributes Text
staAttributeName = lens _staAttributeName (\ s a -> s{_staAttributeName = a});

instance AWSRequest SetTopicAttributes where
        type Rs SetTopicAttributes =
             SetTopicAttributesResponse
        request = postQuery sNS
        response = receiveNull SetTopicAttributesResponse'

instance ToHeaders SetTopicAttributes where
        toHeaders = const mempty

instance ToPath SetTopicAttributes where
        toPath = const "/"

instance ToQuery SetTopicAttributes where
        toQuery SetTopicAttributes'{..}
          = mconcat
              ["Action" =: ("SetTopicAttributes" :: ByteString),
               "Version" =: ("2010-03-31" :: ByteString),
               "AttributeValue" =: _staAttributeValue,
               "TopicArn" =: _staTopicARN,
               "AttributeName" =: _staAttributeName]

-- | /See:/ 'setTopicAttributesResponse' smart constructor.
data SetTopicAttributesResponse =
    SetTopicAttributesResponse'
    deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'SetTopicAttributesResponse' with the minimum fields required to make a request.
--
setTopicAttributesResponse
    :: SetTopicAttributesResponse
setTopicAttributesResponse = SetTopicAttributesResponse'