{-# 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.AutoScaling.DescribeNotificationConfigurations
-- 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)
--
-- Describes the notification actions associated with the specified Auto
-- Scaling group.
--
-- /See:/ <http://docs.aws.amazon.com/AutoScaling/latest/APIReference/API_DescribeNotificationConfigurations.html AWS API Reference> for DescribeNotificationConfigurations.
--
-- This operation returns paginated results.
module Network.AWS.AutoScaling.DescribeNotificationConfigurations
    (
    -- * Creating a Request
      describeNotificationConfigurations
    , DescribeNotificationConfigurations
    -- * Request Lenses
    , dncAutoScalingGroupNames
    , dncNextToken
    , dncMaxRecords

    -- * Destructuring the Response
    , describeNotificationConfigurationsResponse
    , DescribeNotificationConfigurationsResponse
    -- * Response Lenses
    , dncrsNextToken
    , dncrsStatus
    , dncrsNotificationConfigurations
    ) where

import           Network.AWS.AutoScaling.Types
import           Network.AWS.AutoScaling.Types.Product
import           Network.AWS.Pager
import           Network.AWS.Prelude
import           Network.AWS.Request
import           Network.AWS.Response

-- | /See:/ 'describeNotificationConfigurations' smart constructor.
data DescribeNotificationConfigurations = DescribeNotificationConfigurations'
    { _dncAutoScalingGroupNames :: !(Maybe [Text])
    , _dncNextToken             :: !(Maybe Text)
    , _dncMaxRecords            :: !(Maybe Int)
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeNotificationConfigurations' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dncAutoScalingGroupNames'
--
-- * 'dncNextToken'
--
-- * 'dncMaxRecords'
describeNotificationConfigurations
    :: DescribeNotificationConfigurations
describeNotificationConfigurations =
    DescribeNotificationConfigurations'
    { _dncAutoScalingGroupNames = Nothing
    , _dncNextToken = Nothing
    , _dncMaxRecords = Nothing
    }

-- | The name of the group.
dncAutoScalingGroupNames :: Lens' DescribeNotificationConfigurations [Text]
dncAutoScalingGroupNames = lens _dncAutoScalingGroupNames (\ s a -> s{_dncAutoScalingGroupNames = a}) . _Default . _Coerce;

-- | The token for the next set of items to return. (You received this token
-- from a previous call.)
dncNextToken :: Lens' DescribeNotificationConfigurations (Maybe Text)
dncNextToken = lens _dncNextToken (\ s a -> s{_dncNextToken = a});

-- | The maximum number of items to return with this call.
dncMaxRecords :: Lens' DescribeNotificationConfigurations (Maybe Int)
dncMaxRecords = lens _dncMaxRecords (\ s a -> s{_dncMaxRecords = a});

instance AWSPager DescribeNotificationConfigurations
         where
        page rq rs
          | stop (rs ^. dncrsNextToken) = Nothing
          | stop (rs ^. dncrsNotificationConfigurations) =
            Nothing
          | otherwise =
            Just $ rq & dncNextToken .~ rs ^. dncrsNextToken

instance AWSRequest
         DescribeNotificationConfigurations where
        type Rs DescribeNotificationConfigurations =
             DescribeNotificationConfigurationsResponse
        request = postQuery autoScaling
        response
          = receiveXMLWrapper
              "DescribeNotificationConfigurationsResult"
              (\ s h x ->
                 DescribeNotificationConfigurationsResponse' <$>
                   (x .@? "NextToken") <*> (pure (fromEnum s)) <*>
                     (x .@? "NotificationConfigurations" .!@ mempty >>=
                        parseXMLList "member"))

instance ToHeaders DescribeNotificationConfigurations
         where
        toHeaders = const mempty

instance ToPath DescribeNotificationConfigurations
         where
        toPath = const "/"

instance ToQuery DescribeNotificationConfigurations
         where
        toQuery DescribeNotificationConfigurations'{..}
          = mconcat
              ["Action" =:
                 ("DescribeNotificationConfigurations" :: ByteString),
               "Version" =: ("2011-01-01" :: ByteString),
               "AutoScalingGroupNames" =:
                 toQuery
                   (toQueryList "member" <$> _dncAutoScalingGroupNames),
               "NextToken" =: _dncNextToken,
               "MaxRecords" =: _dncMaxRecords]

-- | /See:/ 'describeNotificationConfigurationsResponse' smart constructor.
data DescribeNotificationConfigurationsResponse = DescribeNotificationConfigurationsResponse'
    { _dncrsNextToken                  :: !(Maybe Text)
    , _dncrsStatus                     :: !Int
    , _dncrsNotificationConfigurations :: ![NotificationConfiguration]
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeNotificationConfigurationsResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dncrsNextToken'
--
-- * 'dncrsStatus'
--
-- * 'dncrsNotificationConfigurations'
describeNotificationConfigurationsResponse
    :: Int -- ^ 'dncrsStatus'
    -> DescribeNotificationConfigurationsResponse
describeNotificationConfigurationsResponse pStatus_ =
    DescribeNotificationConfigurationsResponse'
    { _dncrsNextToken = Nothing
    , _dncrsStatus = pStatus_
    , _dncrsNotificationConfigurations = mempty
    }

-- | The token to use when requesting the next set of items. If there are no
-- additional items to return, the string is empty.
dncrsNextToken :: Lens' DescribeNotificationConfigurationsResponse (Maybe Text)
dncrsNextToken = lens _dncrsNextToken (\ s a -> s{_dncrsNextToken = a});

-- | The response status code.
dncrsStatus :: Lens' DescribeNotificationConfigurationsResponse Int
dncrsStatus = lens _dncrsStatus (\ s a -> s{_dncrsStatus = a});

-- | The notification configurations.
dncrsNotificationConfigurations :: Lens' DescribeNotificationConfigurationsResponse [NotificationConfiguration]
dncrsNotificationConfigurations = lens _dncrsNotificationConfigurations (\ s a -> s{_dncrsNotificationConfigurations = a}) . _Coerce;