{-# 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.ELBv2.CreateTargetGroup
-- 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)
--
-- Creates a target group.
--
--
-- To register targets with the target group, use 'RegisterTargets' . To update the health check settings for the target group, use 'ModifyTargetGroup' . To monitor the health of targets in the target group, use 'DescribeTargetHealth' .
--
-- To route traffic to the targets in a target group, specify the target group in an action using 'CreateListener' or 'CreateRule' .
--
-- To delete a target group, use 'DeleteTargetGroup' .
--
-- For more information, see <http://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-target-groups.html Target Groups for Your Application Load Balancers> in the /Application Load Balancers Guide/ .
--
module Network.AWS.ELBv2.CreateTargetGroup
    (
    -- * Creating a Request
      createTargetGroup
    , CreateTargetGroup
    -- * Request Lenses
    , ctgMatcher
    , ctgHealthCheckPath
    , ctgUnhealthyThresholdCount
    , ctgHealthCheckIntervalSeconds
    , ctgHealthyThresholdCount
    , ctgHealthCheckProtocol
    , ctgHealthCheckTimeoutSeconds
    , ctgHealthCheckPort
    , ctgName
    , ctgProtocol
    , ctgPort
    , ctgVPCId

    -- * Destructuring the Response
    , createTargetGroupResponse
    , CreateTargetGroupResponse
    -- * Response Lenses
    , ctgrsTargetGroups
    , ctgrsResponseStatus
    ) where

import           Network.AWS.ELBv2.Types
import           Network.AWS.ELBv2.Types.Product
import           Network.AWS.Lens
import           Network.AWS.Prelude
import           Network.AWS.Request
import           Network.AWS.Response

-- | Contains the parameters for CreateTargetGroup.
--
--
--
-- /See:/ 'createTargetGroup' smart constructor.
data CreateTargetGroup = CreateTargetGroup'
    { _ctgMatcher                    :: !(Maybe Matcher)
    , _ctgHealthCheckPath            :: !(Maybe Text)
    , _ctgUnhealthyThresholdCount    :: !(Maybe Nat)
    , _ctgHealthCheckIntervalSeconds :: !(Maybe Nat)
    , _ctgHealthyThresholdCount      :: !(Maybe Nat)
    , _ctgHealthCheckProtocol        :: !(Maybe ProtocolEnum)
    , _ctgHealthCheckTimeoutSeconds  :: !(Maybe Nat)
    , _ctgHealthCheckPort            :: !(Maybe Text)
    , _ctgName                       :: !Text
    , _ctgProtocol                   :: !ProtocolEnum
    , _ctgPort                       :: !Nat
    , _ctgVPCId                      :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'CreateTargetGroup' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'ctgMatcher' - The HTTP codes to use when checking for a successful response from a target. The default is 200.
--
-- * 'ctgHealthCheckPath' - The ping path that is the destination on the targets for health checks. The default is /.
--
-- * 'ctgUnhealthyThresholdCount' - The number of consecutive health check failures required before considering a target unhealthy. The default is 2.
--
-- * 'ctgHealthCheckIntervalSeconds' - The approximate amount of time, in seconds, between health checks of an individual target. The default is 30 seconds.
--
-- * 'ctgHealthyThresholdCount' - The number of consecutive health checks successes required before considering an unhealthy target healthy. The default is 5.
--
-- * 'ctgHealthCheckProtocol' - The protocol the load balancer uses when performing health checks on targets. The default is the HTTP protocol.
--
-- * 'ctgHealthCheckTimeoutSeconds' - The amount of time, in seconds, during which no response from a target means a failed health check. The default is 5 seconds.
--
-- * 'ctgHealthCheckPort' - The port the load balancer uses when performing health checks on targets. The default is @traffic-port@ , which indicates the port on which each target receives traffic from the load balancer.
--
-- * 'ctgName' - The name of the target group.
--
-- * 'ctgProtocol' - The protocol to use for routing traffic to the targets.
--
-- * 'ctgPort' - The port on which the targets receive traffic. This port is used unless you specify a port override when registering the target.
--
-- * 'ctgVPCId' - The identifier of the virtual private cloud (VPC).
createTargetGroup
    :: Text -- ^ 'ctgName'
    -> ProtocolEnum -- ^ 'ctgProtocol'
    -> Natural -- ^ 'ctgPort'
    -> Text -- ^ 'ctgVPCId'
    -> CreateTargetGroup
createTargetGroup pName_ pProtocol_ pPort_ pVPCId_ =
    CreateTargetGroup'
    { _ctgMatcher = Nothing
    , _ctgHealthCheckPath = Nothing
    , _ctgUnhealthyThresholdCount = Nothing
    , _ctgHealthCheckIntervalSeconds = Nothing
    , _ctgHealthyThresholdCount = Nothing
    , _ctgHealthCheckProtocol = Nothing
    , _ctgHealthCheckTimeoutSeconds = Nothing
    , _ctgHealthCheckPort = Nothing
    , _ctgName = pName_
    , _ctgProtocol = pProtocol_
    , _ctgPort = _Nat # pPort_
    , _ctgVPCId = pVPCId_
    }

-- | The HTTP codes to use when checking for a successful response from a target. The default is 200.
ctgMatcher :: Lens' CreateTargetGroup (Maybe Matcher)
ctgMatcher = lens _ctgMatcher (\ s a -> s{_ctgMatcher = a});

-- | The ping path that is the destination on the targets for health checks. The default is /.
ctgHealthCheckPath :: Lens' CreateTargetGroup (Maybe Text)
ctgHealthCheckPath = lens _ctgHealthCheckPath (\ s a -> s{_ctgHealthCheckPath = a});

-- | The number of consecutive health check failures required before considering a target unhealthy. The default is 2.
ctgUnhealthyThresholdCount :: Lens' CreateTargetGroup (Maybe Natural)
ctgUnhealthyThresholdCount = lens _ctgUnhealthyThresholdCount (\ s a -> s{_ctgUnhealthyThresholdCount = a}) . mapping _Nat;

-- | The approximate amount of time, in seconds, between health checks of an individual target. The default is 30 seconds.
ctgHealthCheckIntervalSeconds :: Lens' CreateTargetGroup (Maybe Natural)
ctgHealthCheckIntervalSeconds = lens _ctgHealthCheckIntervalSeconds (\ s a -> s{_ctgHealthCheckIntervalSeconds = a}) . mapping _Nat;

-- | The number of consecutive health checks successes required before considering an unhealthy target healthy. The default is 5.
ctgHealthyThresholdCount :: Lens' CreateTargetGroup (Maybe Natural)
ctgHealthyThresholdCount = lens _ctgHealthyThresholdCount (\ s a -> s{_ctgHealthyThresholdCount = a}) . mapping _Nat;

-- | The protocol the load balancer uses when performing health checks on targets. The default is the HTTP protocol.
ctgHealthCheckProtocol :: Lens' CreateTargetGroup (Maybe ProtocolEnum)
ctgHealthCheckProtocol = lens _ctgHealthCheckProtocol (\ s a -> s{_ctgHealthCheckProtocol = a});

-- | The amount of time, in seconds, during which no response from a target means a failed health check. The default is 5 seconds.
ctgHealthCheckTimeoutSeconds :: Lens' CreateTargetGroup (Maybe Natural)
ctgHealthCheckTimeoutSeconds = lens _ctgHealthCheckTimeoutSeconds (\ s a -> s{_ctgHealthCheckTimeoutSeconds = a}) . mapping _Nat;

-- | The port the load balancer uses when performing health checks on targets. The default is @traffic-port@ , which indicates the port on which each target receives traffic from the load balancer.
ctgHealthCheckPort :: Lens' CreateTargetGroup (Maybe Text)
ctgHealthCheckPort = lens _ctgHealthCheckPort (\ s a -> s{_ctgHealthCheckPort = a});

-- | The name of the target group.
ctgName :: Lens' CreateTargetGroup Text
ctgName = lens _ctgName (\ s a -> s{_ctgName = a});

-- | The protocol to use for routing traffic to the targets.
ctgProtocol :: Lens' CreateTargetGroup ProtocolEnum
ctgProtocol = lens _ctgProtocol (\ s a -> s{_ctgProtocol = a});

-- | The port on which the targets receive traffic. This port is used unless you specify a port override when registering the target.
ctgPort :: Lens' CreateTargetGroup Natural
ctgPort = lens _ctgPort (\ s a -> s{_ctgPort = a}) . _Nat;

-- | The identifier of the virtual private cloud (VPC).
ctgVPCId :: Lens' CreateTargetGroup Text
ctgVPCId = lens _ctgVPCId (\ s a -> s{_ctgVPCId = a});

instance AWSRequest CreateTargetGroup where
        type Rs CreateTargetGroup = CreateTargetGroupResponse
        request = postQuery eLBv2
        response
          = receiveXMLWrapper "CreateTargetGroupResult"
              (\ s h x ->
                 CreateTargetGroupResponse' <$>
                   (x .@? "TargetGroups" .!@ mempty >>=
                      may (parseXMLList "member"))
                     <*> (pure (fromEnum s)))

instance Hashable CreateTargetGroup

instance NFData CreateTargetGroup

instance ToHeaders CreateTargetGroup where
        toHeaders = const mempty

instance ToPath CreateTargetGroup where
        toPath = const "/"

instance ToQuery CreateTargetGroup where
        toQuery CreateTargetGroup'{..}
          = mconcat
              ["Action" =: ("CreateTargetGroup" :: ByteString),
               "Version" =: ("2015-12-01" :: ByteString),
               "Matcher" =: _ctgMatcher,
               "HealthCheckPath" =: _ctgHealthCheckPath,
               "UnhealthyThresholdCount" =:
                 _ctgUnhealthyThresholdCount,
               "HealthCheckIntervalSeconds" =:
                 _ctgHealthCheckIntervalSeconds,
               "HealthyThresholdCount" =: _ctgHealthyThresholdCount,
               "HealthCheckProtocol" =: _ctgHealthCheckProtocol,
               "HealthCheckTimeoutSeconds" =:
                 _ctgHealthCheckTimeoutSeconds,
               "HealthCheckPort" =: _ctgHealthCheckPort,
               "Name" =: _ctgName, "Protocol" =: _ctgProtocol,
               "Port" =: _ctgPort, "VpcId" =: _ctgVPCId]

-- | Contains the output of CreateTargetGroup.
--
--
--
-- /See:/ 'createTargetGroupResponse' smart constructor.
data CreateTargetGroupResponse = CreateTargetGroupResponse'
    { _ctgrsTargetGroups   :: !(Maybe [TargetGroup])
    , _ctgrsResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'CreateTargetGroupResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'ctgrsTargetGroups' - Information about the target group.
--
-- * 'ctgrsResponseStatus' - -- | The response status code.
createTargetGroupResponse
    :: Int -- ^ 'ctgrsResponseStatus'
    -> CreateTargetGroupResponse
createTargetGroupResponse pResponseStatus_ =
    CreateTargetGroupResponse'
    { _ctgrsTargetGroups = Nothing
    , _ctgrsResponseStatus = pResponseStatus_
    }

-- | Information about the target group.
ctgrsTargetGroups :: Lens' CreateTargetGroupResponse [TargetGroup]
ctgrsTargetGroups = lens _ctgrsTargetGroups (\ s a -> s{_ctgrsTargetGroups = a}) . _Default . _Coerce;

-- | -- | The response status code.
ctgrsResponseStatus :: Lens' CreateTargetGroupResponse Int
ctgrsResponseStatus = lens _ctgrsResponseStatus (\ s a -> s{_ctgrsResponseStatus = a});

instance NFData CreateTargetGroupResponse