{-# 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.ECS.UpdateContainerAgent
-- 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)
--
-- Updates the Amazon ECS container agent on a specified container
-- instance. Updating the Amazon ECS container agent does not interrupt
-- running tasks or services on the container instance. The process for
-- updating the agent differs depending on whether your container instance
-- was launched with the Amazon ECS-optimized AMI or another operating
-- system.
--
-- 'UpdateContainerAgent' requires the Amazon ECS-optimized AMI or Amazon
-- Linux with the 'ecs-init' service installed and running. For help
-- updating the Amazon ECS container agent on other operating systems, see
-- <http://docs.aws.amazon.com/AmazonECS/latest/developerguide/ecs-agent-update.html#manually_update_agent Manually Updating the Amazon ECS Container Agent>
-- in the /Amazon EC2 Container Service Developer Guide/.
--
-- /See:/ <http://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_UpdateContainerAgent.html AWS API Reference> for UpdateContainerAgent.
module Network.AWS.ECS.UpdateContainerAgent
    (
    -- * Creating a Request
      updateContainerAgent
    , UpdateContainerAgent
    -- * Request Lenses
    , ucaCluster
    , ucaContainerInstance

    -- * Destructuring the Response
    , updateContainerAgentResponse
    , UpdateContainerAgentResponse
    -- * Response Lenses
    , ucarsContainerInstance
    , ucarsStatus
    ) where

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

-- | /See:/ 'updateContainerAgent' smart constructor.
data UpdateContainerAgent = UpdateContainerAgent'
    { _ucaCluster           :: !(Maybe Text)
    , _ucaContainerInstance :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'UpdateContainerAgent' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'ucaCluster'
--
-- * 'ucaContainerInstance'
updateContainerAgent
    :: Text -- ^ 'ucaContainerInstance'
    -> UpdateContainerAgent
updateContainerAgent pContainerInstance_ =
    UpdateContainerAgent'
    { _ucaCluster = Nothing
    , _ucaContainerInstance = pContainerInstance_
    }

-- | The short name or full Amazon Resource Name (ARN) of the cluster that
-- your container instance is running on. If you do not specify a cluster,
-- the default cluster is assumed.
ucaCluster :: Lens' UpdateContainerAgent (Maybe Text)
ucaCluster = lens _ucaCluster (\ s a -> s{_ucaCluster = a});

-- | The container instance UUID or full Amazon Resource Name (ARN) entries
-- for the container instance on which you would like to update the Amazon
-- ECS container agent.
ucaContainerInstance :: Lens' UpdateContainerAgent Text
ucaContainerInstance = lens _ucaContainerInstance (\ s a -> s{_ucaContainerInstance = a});

instance AWSRequest UpdateContainerAgent where
        type Sv UpdateContainerAgent = ECS
        type Rs UpdateContainerAgent =
             UpdateContainerAgentResponse
        request = postJSON
        response
          = receiveJSON
              (\ s h x ->
                 UpdateContainerAgentResponse' <$>
                   (x .?> "containerInstance") <*> (pure (fromEnum s)))

instance ToHeaders UpdateContainerAgent where
        toHeaders
          = const
              (mconcat
                 ["X-Amz-Target" =#
                    ("AmazonEC2ContainerServiceV20141113.UpdateContainerAgent"
                       :: ByteString),
                  "Content-Type" =#
                    ("application/x-amz-json-1.1" :: ByteString)])

instance ToJSON UpdateContainerAgent where
        toJSON UpdateContainerAgent'{..}
          = object
              ["cluster" .= _ucaCluster,
               "containerInstance" .= _ucaContainerInstance]

instance ToPath UpdateContainerAgent where
        toPath = const "/"

instance ToQuery UpdateContainerAgent where
        toQuery = const mempty

-- | /See:/ 'updateContainerAgentResponse' smart constructor.
data UpdateContainerAgentResponse = UpdateContainerAgentResponse'
    { _ucarsContainerInstance :: !(Maybe ContainerInstance)
    , _ucarsStatus            :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'UpdateContainerAgentResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'ucarsContainerInstance'
--
-- * 'ucarsStatus'
updateContainerAgentResponse
    :: Int -- ^ 'ucarsStatus'
    -> UpdateContainerAgentResponse
updateContainerAgentResponse pStatus_ =
    UpdateContainerAgentResponse'
    { _ucarsContainerInstance = Nothing
    , _ucarsStatus = pStatus_
    }

-- | Undocumented member.
ucarsContainerInstance :: Lens' UpdateContainerAgentResponse (Maybe ContainerInstance)
ucarsContainerInstance = lens _ucarsContainerInstance (\ s a -> s{_ucarsContainerInstance = a});

-- | The response status code.
ucarsStatus :: Lens' UpdateContainerAgentResponse Int
ucarsStatus = lens _ucarsStatus (\ s a -> s{_ucarsStatus = a});