{-# 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.EC2.AttachClassicLinkVPC
-- 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)
--
-- Links an EC2-Classic instance to a ClassicLink-enabled VPC through one
-- or more of the VPC\'s security groups. You cannot link an EC2-Classic
-- instance to more than one VPC at a time. You can only link an instance
-- that\'s in the 'running' state. An instance is automatically unlinked
-- from a VPC when it\'s stopped - you can link it to the VPC again when
-- you restart it.
--
-- After you\'ve linked an instance, you cannot change the VPC security
-- groups that are associated with it. To change the security groups, you
-- must first unlink the instance, and then link it again.
--
-- Linking your instance to a VPC is sometimes referred to as /attaching/
-- your instance.
--
-- /See:/ <http://docs.aws.amazon.com/AWSEC2/latest/APIReference/ApiReference-query-AttachClassicLinkVPC.html AWS API Reference> for AttachClassicLinkVPC.
module Network.AWS.EC2.AttachClassicLinkVPC
    (
    -- * Creating a Request
      attachClassicLinkVPC
    , AttachClassicLinkVPC
    -- * Request Lenses
    , aclvDryRun
    , aclvInstanceId
    , aclvVPCId
    , aclvGroups

    -- * Destructuring the Response
    , attachClassicLinkVPCResponse
    , AttachClassicLinkVPCResponse
    -- * Response Lenses
    , aclvrsReturn
    , aclvrsResponseStatus
    ) where

import           Network.AWS.EC2.Types
import           Network.AWS.EC2.Types.Product
import           Network.AWS.Prelude
import           Network.AWS.Request
import           Network.AWS.Response

-- | /See:/ 'attachClassicLinkVPC' smart constructor.
data AttachClassicLinkVPC = AttachClassicLinkVPC'
    { _aclvDryRun     :: !(Maybe Bool)
    , _aclvInstanceId :: !Text
    , _aclvVPCId      :: !Text
    , _aclvGroups     :: ![Text]
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'AttachClassicLinkVPC' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'aclvDryRun'
--
-- * 'aclvInstanceId'
--
-- * 'aclvVPCId'
--
-- * 'aclvGroups'
attachClassicLinkVPC
    :: Text -- ^ 'aclvInstanceId'
    -> Text -- ^ 'aclvVPCId'
    -> AttachClassicLinkVPC
attachClassicLinkVPC pInstanceId_ pVPCId_ =
    AttachClassicLinkVPC'
    { _aclvDryRun = Nothing
    , _aclvInstanceId = pInstanceId_
    , _aclvVPCId = pVPCId_
    , _aclvGroups = mempty
    }

-- | Checks whether you have the required permissions for the action, without
-- actually making the request, and provides an error response. If you have
-- the required permissions, the error response is 'DryRunOperation'.
-- Otherwise, it is 'UnauthorizedOperation'.
aclvDryRun :: Lens' AttachClassicLinkVPC (Maybe Bool)
aclvDryRun = lens _aclvDryRun (\ s a -> s{_aclvDryRun = a});

-- | The ID of an EC2-Classic instance to link to the ClassicLink-enabled
-- VPC.
aclvInstanceId :: Lens' AttachClassicLinkVPC Text
aclvInstanceId = lens _aclvInstanceId (\ s a -> s{_aclvInstanceId = a});

-- | The ID of a ClassicLink-enabled VPC.
aclvVPCId :: Lens' AttachClassicLinkVPC Text
aclvVPCId = lens _aclvVPCId (\ s a -> s{_aclvVPCId = a});

-- | The ID of one or more of the VPC\'s security groups. You cannot specify
-- security groups from a different VPC.
aclvGroups :: Lens' AttachClassicLinkVPC [Text]
aclvGroups = lens _aclvGroups (\ s a -> s{_aclvGroups = a}) . _Coerce;

instance AWSRequest AttachClassicLinkVPC where
        type Rs AttachClassicLinkVPC =
             AttachClassicLinkVPCResponse
        request = postQuery eC2
        response
          = receiveXML
              (\ s h x ->
                 AttachClassicLinkVPCResponse' <$>
                   (x .@? "return") <*> (pure (fromEnum s)))

instance ToHeaders AttachClassicLinkVPC where
        toHeaders = const mempty

instance ToPath AttachClassicLinkVPC where
        toPath = const "/"

instance ToQuery AttachClassicLinkVPC where
        toQuery AttachClassicLinkVPC'{..}
          = mconcat
              ["Action" =: ("AttachClassicLinkVpc" :: ByteString),
               "Version" =: ("2015-04-15" :: ByteString),
               "DryRun" =: _aclvDryRun,
               "InstanceId" =: _aclvInstanceId,
               "VpcId" =: _aclvVPCId,
               toQueryList "SecurityGroupId" _aclvGroups]

-- | /See:/ 'attachClassicLinkVPCResponse' smart constructor.
data AttachClassicLinkVPCResponse = AttachClassicLinkVPCResponse'
    { _aclvrsReturn         :: !(Maybe Bool)
    , _aclvrsResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'AttachClassicLinkVPCResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'aclvrsReturn'
--
-- * 'aclvrsResponseStatus'
attachClassicLinkVPCResponse
    :: Int -- ^ 'aclvrsResponseStatus'
    -> AttachClassicLinkVPCResponse
attachClassicLinkVPCResponse pResponseStatus_ =
    AttachClassicLinkVPCResponse'
    { _aclvrsReturn = Nothing
    , _aclvrsResponseStatus = pResponseStatus_
    }

-- | Returns 'true' if the request succeeds; otherwise, it returns an error.
aclvrsReturn :: Lens' AttachClassicLinkVPCResponse (Maybe Bool)
aclvrsReturn = lens _aclvrsReturn (\ s a -> s{_aclvrsReturn = a});

-- | The response status code.
aclvrsResponseStatus :: Lens' AttachClassicLinkVPCResponse Int
aclvrsResponseStatus = lens _aclvrsResponseStatus (\ s a -> s{_aclvrsResponseStatus = a});