{-# 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.Redshift.ModifyEventSubscription
-- 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)
--
-- Modifies an existing Amazon Redshift event notification subscription.
--
-- /See:/ <http://docs.aws.amazon.com/redshift/latest/APIReference/API_ModifyEventSubscription.html AWS API Reference> for ModifyEventSubscription.
module Network.AWS.Redshift.ModifyEventSubscription
    (
    -- * Creating a Request
      modifyEventSubscription
    , ModifyEventSubscription
    -- * Request Lenses
    , mesSNSTopicARN
    , mesEnabled
    , mesSourceType
    , mesSeverity
    , mesEventCategories
    , mesSourceIds
    , mesSubscriptionName

    -- * Destructuring the Response
    , modifyEventSubscriptionResponse
    , ModifyEventSubscriptionResponse
    -- * Response Lenses
    , mesrsEventSubscription
    , mesrsResponseStatus
    ) where

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

-- |
--
-- /See:/ 'modifyEventSubscription' smart constructor.
data ModifyEventSubscription = ModifyEventSubscription'
    { _mesSNSTopicARN      :: !(Maybe Text)
    , _mesEnabled          :: !(Maybe Bool)
    , _mesSourceType       :: !(Maybe Text)
    , _mesSeverity         :: !(Maybe Text)
    , _mesEventCategories  :: !(Maybe [Text])
    , _mesSourceIds        :: !(Maybe [Text])
    , _mesSubscriptionName :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ModifyEventSubscription' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'mesSNSTopicARN'
--
-- * 'mesEnabled'
--
-- * 'mesSourceType'
--
-- * 'mesSeverity'
--
-- * 'mesEventCategories'
--
-- * 'mesSourceIds'
--
-- * 'mesSubscriptionName'
modifyEventSubscription
    :: Text -- ^ 'mesSubscriptionName'
    -> ModifyEventSubscription
modifyEventSubscription pSubscriptionName_ =
    ModifyEventSubscription'
    { _mesSNSTopicARN = Nothing
    , _mesEnabled = Nothing
    , _mesSourceType = Nothing
    , _mesSeverity = Nothing
    , _mesEventCategories = Nothing
    , _mesSourceIds = Nothing
    , _mesSubscriptionName = pSubscriptionName_
    }

-- | The Amazon Resource Name (ARN) of the SNS topic to be used by the event
-- notification subscription.
mesSNSTopicARN :: Lens' ModifyEventSubscription (Maybe Text)
mesSNSTopicARN = lens _mesSNSTopicARN (\ s a -> s{_mesSNSTopicARN = a});

-- | A Boolean value indicating if the subscription is enabled. 'true'
-- indicates the subscription is enabled
mesEnabled :: Lens' ModifyEventSubscription (Maybe Bool)
mesEnabled = lens _mesEnabled (\ s a -> s{_mesEnabled = a});

-- | The type of source that will be generating the events. For example, if
-- you want to be notified of events generated by a cluster, you would set
-- this parameter to cluster. If this value is not specified, events are
-- returned for all Amazon Redshift objects in your AWS account. You must
-- specify a source type in order to specify source IDs.
--
-- Valid values: cluster, cluster-parameter-group, cluster-security-group,
-- and cluster-snapshot.
mesSourceType :: Lens' ModifyEventSubscription (Maybe Text)
mesSourceType = lens _mesSourceType (\ s a -> s{_mesSourceType = a});

-- | Specifies the Amazon Redshift event severity to be published by the
-- event notification subscription.
--
-- Values: ERROR, INFO
mesSeverity :: Lens' ModifyEventSubscription (Maybe Text)
mesSeverity = lens _mesSeverity (\ s a -> s{_mesSeverity = a});

-- | Specifies the Amazon Redshift event categories to be published by the
-- event notification subscription.
--
-- Values: Configuration, Management, Monitoring, Security
mesEventCategories :: Lens' ModifyEventSubscription [Text]
mesEventCategories = lens _mesEventCategories (\ s a -> s{_mesEventCategories = a}) . _Default . _Coerce;

-- | A list of one or more identifiers of Amazon Redshift source objects. All
-- of the objects must be of the same type as was specified in the source
-- type parameter. The event subscription will return only events generated
-- by the specified objects. If not specified, then events are returned for
-- all objects within the source type specified.
--
-- Example: my-cluster-1, my-cluster-2
--
-- Example: my-snapshot-20131010
mesSourceIds :: Lens' ModifyEventSubscription [Text]
mesSourceIds = lens _mesSourceIds (\ s a -> s{_mesSourceIds = a}) . _Default . _Coerce;

-- | The name of the modified Amazon Redshift event notification
-- subscription.
mesSubscriptionName :: Lens' ModifyEventSubscription Text
mesSubscriptionName = lens _mesSubscriptionName (\ s a -> s{_mesSubscriptionName = a});

instance AWSRequest ModifyEventSubscription where
        type Rs ModifyEventSubscription =
             ModifyEventSubscriptionResponse
        request = postQuery redshift
        response
          = receiveXMLWrapper "ModifyEventSubscriptionResult"
              (\ s h x ->
                 ModifyEventSubscriptionResponse' <$>
                   (x .@? "EventSubscription") <*> (pure (fromEnum s)))

instance ToHeaders ModifyEventSubscription where
        toHeaders = const mempty

instance ToPath ModifyEventSubscription where
        toPath = const "/"

instance ToQuery ModifyEventSubscription where
        toQuery ModifyEventSubscription'{..}
          = mconcat
              ["Action" =:
                 ("ModifyEventSubscription" :: ByteString),
               "Version" =: ("2012-12-01" :: ByteString),
               "SnsTopicArn" =: _mesSNSTopicARN,
               "Enabled" =: _mesEnabled,
               "SourceType" =: _mesSourceType,
               "Severity" =: _mesSeverity,
               "EventCategories" =:
                 toQuery
                   (toQueryList "EventCategory" <$>
                      _mesEventCategories),
               "SourceIds" =:
                 toQuery (toQueryList "SourceId" <$> _mesSourceIds),
               "SubscriptionName" =: _mesSubscriptionName]

-- | /See:/ 'modifyEventSubscriptionResponse' smart constructor.
data ModifyEventSubscriptionResponse = ModifyEventSubscriptionResponse'
    { _mesrsEventSubscription :: !(Maybe EventSubscription)
    , _mesrsResponseStatus    :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ModifyEventSubscriptionResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'mesrsEventSubscription'
--
-- * 'mesrsResponseStatus'
modifyEventSubscriptionResponse
    :: Int -- ^ 'mesrsResponseStatus'
    -> ModifyEventSubscriptionResponse
modifyEventSubscriptionResponse pResponseStatus_ =
    ModifyEventSubscriptionResponse'
    { _mesrsEventSubscription = Nothing
    , _mesrsResponseStatus = pResponseStatus_
    }

-- | Undocumented member.
mesrsEventSubscription :: Lens' ModifyEventSubscriptionResponse (Maybe EventSubscription)
mesrsEventSubscription = lens _mesrsEventSubscription (\ s a -> s{_mesrsEventSubscription = a});

-- | The response status code.
mesrsResponseStatus :: Lens' ModifyEventSubscriptionResponse Int
mesrsResponseStatus = lens _mesrsResponseStatus (\ s a -> s{_mesrsResponseStatus = a});