{-# 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.IAM.ListSSHPublicKeys
-- 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)
--
-- Returns information about the SSH public keys associated with the
-- specified IAM user. If there are none, the action returns an empty list.
--
-- The SSH public keys returned by this action are used only for
-- authenticating the IAM user to an AWS CodeCommit repository. For more
-- information about using SSH keys to authenticate to an AWS CodeCommit
-- repository, see
-- <http://docs.aws.amazon.com/codecommit/latest/userguide/setting-up-credentials-ssh.html Set up AWS CodeCommit for SSH Connections>
-- in the /AWS CodeCommit User Guide/.
--
-- Although each user is limited to a small number of keys, you can still
-- paginate the results using the 'MaxItems' and 'Marker' parameters.
--
-- /See:/ <http://docs.aws.amazon.com/IAM/latest/APIReference/API_ListSSHPublicKeys.html AWS API Reference> for ListSSHPublicKeys.
module Network.AWS.IAM.ListSSHPublicKeys
    (
    -- * Creating a Request
      listSSHPublicKeys
    , ListSSHPublicKeys
    -- * Request Lenses
    , lspkUserName
    , lspkMarker
    , lspkMaxItems

    -- * Destructuring the Response
    , listSSHPublicKeysResponse
    , ListSSHPublicKeysResponse
    -- * Response Lenses
    , lspkrsSSHPublicKeys
    , lspkrsMarker
    , lspkrsIsTruncated
    , lspkrsResponseStatus
    ) where

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

-- | /See:/ 'listSSHPublicKeys' smart constructor.
data ListSSHPublicKeys = ListSSHPublicKeys'
    { _lspkUserName :: !(Maybe Text)
    , _lspkMarker   :: !(Maybe Text)
    , _lspkMaxItems :: !(Maybe Nat)
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListSSHPublicKeys' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'lspkUserName'
--
-- * 'lspkMarker'
--
-- * 'lspkMaxItems'
listSSHPublicKeys
    :: ListSSHPublicKeys
listSSHPublicKeys =
    ListSSHPublicKeys'
    { _lspkUserName = Nothing
    , _lspkMarker = Nothing
    , _lspkMaxItems = Nothing
    }

-- | The name of the IAM user to list SSH public keys for. If none is
-- specified, the UserName field is determined implicitly based on the AWS
-- access key used to sign the request.
lspkUserName :: Lens' ListSSHPublicKeys (Maybe Text)
lspkUserName = lens _lspkUserName (\ s a -> s{_lspkUserName = a});

-- | Use this parameter only when paginating results and only after you
-- receive a response indicating that the results are truncated. Set it to
-- the value of the 'Marker' element in the response you received to inform
-- the next call about where to start.
lspkMarker :: Lens' ListSSHPublicKeys (Maybe Text)
lspkMarker = lens _lspkMarker (\ s a -> s{_lspkMarker = a});

-- | Use this only when paginating results to indicate the maximum number of
-- items you want in the response. If there are additional items beyond the
-- maximum you specify, the 'IsTruncated' response element is 'true'.
--
-- This parameter is optional. If you do not include it, it defaults to
-- 100. Note that IAM might return fewer results, even when there are more
-- results available. If this is the case, the 'IsTruncated' response
-- element returns 'true' and 'Marker' contains a value to include in the
-- subsequent call that tells the service where to continue from.
lspkMaxItems :: Lens' ListSSHPublicKeys (Maybe Natural)
lspkMaxItems = lens _lspkMaxItems (\ s a -> s{_lspkMaxItems = a}) . mapping _Nat;

instance AWSRequest ListSSHPublicKeys where
        type Rs ListSSHPublicKeys = ListSSHPublicKeysResponse
        request = postQuery iAM
        response
          = receiveXMLWrapper "ListSSHPublicKeysResult"
              (\ s h x ->
                 ListSSHPublicKeysResponse' <$>
                   (x .@? "SSHPublicKeys" .!@ mempty >>=
                      may (parseXMLList "member"))
                     <*> (x .@? "Marker")
                     <*> (x .@? "IsTruncated")
                     <*> (pure (fromEnum s)))

instance ToHeaders ListSSHPublicKeys where
        toHeaders = const mempty

instance ToPath ListSSHPublicKeys where
        toPath = const "/"

instance ToQuery ListSSHPublicKeys where
        toQuery ListSSHPublicKeys'{..}
          = mconcat
              ["Action" =: ("ListSSHPublicKeys" :: ByteString),
               "Version" =: ("2010-05-08" :: ByteString),
               "UserName" =: _lspkUserName, "Marker" =: _lspkMarker,
               "MaxItems" =: _lspkMaxItems]

-- | Contains the response to a successful ListSSHPublicKeys request.
--
-- /See:/ 'listSSHPublicKeysResponse' smart constructor.
data ListSSHPublicKeysResponse = ListSSHPublicKeysResponse'
    { _lspkrsSSHPublicKeys  :: !(Maybe [SSHPublicKeyMetadata])
    , _lspkrsMarker         :: !(Maybe Text)
    , _lspkrsIsTruncated    :: !(Maybe Bool)
    , _lspkrsResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListSSHPublicKeysResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'lspkrsSSHPublicKeys'
--
-- * 'lspkrsMarker'
--
-- * 'lspkrsIsTruncated'
--
-- * 'lspkrsResponseStatus'
listSSHPublicKeysResponse
    :: Int -- ^ 'lspkrsResponseStatus'
    -> ListSSHPublicKeysResponse
listSSHPublicKeysResponse pResponseStatus_ =
    ListSSHPublicKeysResponse'
    { _lspkrsSSHPublicKeys = Nothing
    , _lspkrsMarker = Nothing
    , _lspkrsIsTruncated = Nothing
    , _lspkrsResponseStatus = pResponseStatus_
    }

-- | A list of SSH public keys.
lspkrsSSHPublicKeys :: Lens' ListSSHPublicKeysResponse [SSHPublicKeyMetadata]
lspkrsSSHPublicKeys = lens _lspkrsSSHPublicKeys (\ s a -> s{_lspkrsSSHPublicKeys = a}) . _Default . _Coerce;

-- | When 'IsTruncated' is 'true', this element is present and contains the
-- value to use for the 'Marker' parameter in a subsequent pagination
-- request.
lspkrsMarker :: Lens' ListSSHPublicKeysResponse (Maybe Text)
lspkrsMarker = lens _lspkrsMarker (\ s a -> s{_lspkrsMarker = a});

-- | A flag that indicates whether there are more items to return. If your
-- results were truncated, you can make a subsequent pagination request
-- using the 'Marker' request parameter to retrieve more items. Note that
-- IAM might return fewer than the 'MaxItems' number of results even when
-- there are more results available. We recommend that you check
-- 'IsTruncated' after every call to ensure that you receive all of your
-- results.
lspkrsIsTruncated :: Lens' ListSSHPublicKeysResponse (Maybe Bool)
lspkrsIsTruncated = lens _lspkrsIsTruncated (\ s a -> s{_lspkrsIsTruncated = a});

-- | The response status code.
lspkrsResponseStatus :: Lens' ListSSHPublicKeysResponse Int
lspkrsResponseStatus = lens _lspkrsResponseStatus (\ s a -> s{_lspkrsResponseStatus = a});
