{-# 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.ELB.DisableAvailabilityZonesForLoadBalancer
-- 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)
--
-- Removes the specified Availability Zones from the set of Availability Zones for the specified load balancer.
--
-- There must be at least one Availability Zone registered with a load balancer at all times. After an Availability Zone is removed, all instances registered with the load balancer that are in the removed Availability Zone go into the 'OutOfService' state. Then, the load balancer attempts to equally balance the traffic among its remaining Availability Zones.
--
-- For more information, see <http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/US_ShrinkLBApp04.html Disable an Availability Zone from a Load-Balanced Application> in the /Elastic Load Balancing Developer Guide/.
module Network.AWS.ELB.DisableAvailabilityZonesForLoadBalancer
    (
    -- * Creating a Request
      disableAvailabilityZonesForLoadBalancer
    , DisableAvailabilityZonesForLoadBalancer
    -- * Request Lenses
    , dazflbLoadBalancerName
    , dazflbAvailabilityZones

    -- * Destructuring the Response
    , disableAvailabilityZonesForLoadBalancerResponse
    , DisableAvailabilityZonesForLoadBalancerResponse
    -- * Response Lenses
    , dazflbrsAvailabilityZones
    , dazflbrsResponseStatus
    ) where

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

-- | /See:/ 'disableAvailabilityZonesForLoadBalancer' smart constructor.
data DisableAvailabilityZonesForLoadBalancer = DisableAvailabilityZonesForLoadBalancer'
    { _dazflbLoadBalancerName  :: !Text
    , _dazflbAvailabilityZones :: ![Text]
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DisableAvailabilityZonesForLoadBalancer' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dazflbLoadBalancerName'
--
-- * 'dazflbAvailabilityZones'
disableAvailabilityZonesForLoadBalancer
    :: Text -- ^ 'dazflbLoadBalancerName'
    -> DisableAvailabilityZonesForLoadBalancer
disableAvailabilityZonesForLoadBalancer pLoadBalancerName_ =
    DisableAvailabilityZonesForLoadBalancer'
    { _dazflbLoadBalancerName = pLoadBalancerName_
    , _dazflbAvailabilityZones = mempty
    }

-- | The name of the load balancer.
dazflbLoadBalancerName :: Lens' DisableAvailabilityZonesForLoadBalancer Text
dazflbLoadBalancerName = lens _dazflbLoadBalancerName (\ s a -> s{_dazflbLoadBalancerName = a});

-- | The Availability Zones.
dazflbAvailabilityZones :: Lens' DisableAvailabilityZonesForLoadBalancer [Text]
dazflbAvailabilityZones = lens _dazflbAvailabilityZones (\ s a -> s{_dazflbAvailabilityZones = a}) . _Coerce;

instance AWSRequest
         DisableAvailabilityZonesForLoadBalancer where
        type Rs DisableAvailabilityZonesForLoadBalancer =
             DisableAvailabilityZonesForLoadBalancerResponse
        request = postQuery elb
        response
          = receiveXMLWrapper
              "DisableAvailabilityZonesForLoadBalancerResult"
              (\ s h x ->
                 DisableAvailabilityZonesForLoadBalancerResponse' <$>
                   (x .@? "AvailabilityZones" .!@ mempty >>=
                      may (parseXMLList "member"))
                     <*> (pure (fromEnum s)))

instance Hashable
         DisableAvailabilityZonesForLoadBalancer

instance NFData
         DisableAvailabilityZonesForLoadBalancer

instance ToHeaders
         DisableAvailabilityZonesForLoadBalancer where
        toHeaders = const mempty

instance ToPath
         DisableAvailabilityZonesForLoadBalancer where
        toPath = const "/"

instance ToQuery
         DisableAvailabilityZonesForLoadBalancer where
        toQuery DisableAvailabilityZonesForLoadBalancer'{..}
          = mconcat
              ["Action" =:
                 ("DisableAvailabilityZonesForLoadBalancer" ::
                    ByteString),
               "Version" =: ("2012-06-01" :: ByteString),
               "LoadBalancerName" =: _dazflbLoadBalancerName,
               "AvailabilityZones" =:
                 toQueryList "member" _dazflbAvailabilityZones]

-- | /See:/ 'disableAvailabilityZonesForLoadBalancerResponse' smart constructor.
data DisableAvailabilityZonesForLoadBalancerResponse = DisableAvailabilityZonesForLoadBalancerResponse'
    { _dazflbrsAvailabilityZones :: !(Maybe [Text])
    , _dazflbrsResponseStatus    :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DisableAvailabilityZonesForLoadBalancerResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dazflbrsAvailabilityZones'
--
-- * 'dazflbrsResponseStatus'
disableAvailabilityZonesForLoadBalancerResponse
    :: Int -- ^ 'dazflbrsResponseStatus'
    -> DisableAvailabilityZonesForLoadBalancerResponse
disableAvailabilityZonesForLoadBalancerResponse pResponseStatus_ =
    DisableAvailabilityZonesForLoadBalancerResponse'
    { _dazflbrsAvailabilityZones = Nothing
    , _dazflbrsResponseStatus = pResponseStatus_
    }

-- | The remaining Availability Zones for the load balancer.
dazflbrsAvailabilityZones :: Lens' DisableAvailabilityZonesForLoadBalancerResponse [Text]
dazflbrsAvailabilityZones = lens _dazflbrsAvailabilityZones (\ s a -> s{_dazflbrsAvailabilityZones = a}) . _Default . _Coerce;

-- | The response status code.
dazflbrsResponseStatus :: Lens' DisableAvailabilityZonesForLoadBalancerResponse Int
dazflbrsResponseStatus = lens _dazflbrsResponseStatus (\ s a -> s{_dazflbrsResponseStatus = a});

instance NFData
         DisableAvailabilityZonesForLoadBalancerResponse