{-# 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.ListServerCertificates
-- Copyright   : (c) 2013-2018 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay+amazonka@gmail.com>
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Lists the server certificates stored in IAM that have the specified path prefix. If none exist, the operation returns an empty list.
--
--
-- You can paginate the results using the @MaxItems@ and @Marker@ parameters.
--
-- For more information about working with server certificates, see <http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_server-certs.html Working with Server Certificates> in the /IAM User Guide/ . This topic also includes a list of AWS services that can use the server certificates that you manage with IAM.
--
--
-- This operation returns paginated results.
module Network.AWS.IAM.ListServerCertificates
    (
    -- * Creating a Request
      listServerCertificates
    , ListServerCertificates
    -- * Request Lenses
    , lscPathPrefix
    , lscMarker
    , lscMaxItems

    -- * Destructuring the Response
    , listServerCertificatesResponse
    , ListServerCertificatesResponse
    -- * Response Lenses
    , lscrsMarker
    , lscrsIsTruncated
    , lscrsResponseStatus
    , lscrsServerCertificateMetadataList
    ) where

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

-- | /See:/ 'listServerCertificates' smart constructor.
data ListServerCertificates = ListServerCertificates'
  { _lscPathPrefix :: !(Maybe Text)
  , _lscMarker     :: !(Maybe Text)
  , _lscMaxItems   :: !(Maybe Nat)
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'ListServerCertificates' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'lscPathPrefix' - The path prefix for filtering the results. For example: @/company/servercerts@ would get all server certificates for which the path starts with @/company/servercerts@ . This parameter is optional. If it is not included, it defaults to a slash (/), listing all server certificates. This parameter allows (per its <http://wikipedia.org/wiki/regex regex pattern> ) a string of characters consisting of either a forward slash (/) by itself or a string that must begin and end with forward slashes. In addition, it can contain any ASCII character from the ! (\u0021) through the DEL character (\u007F), including most punctuation characters, digits, and upper and lowercased letters.
--
-- * 'lscMarker' - 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 that you received to indicate where the next call should start.
--
-- * 'lscMaxItems' - (Optional) Use this only when paginating results to indicate the maximum number of items you want in the response. If additional items exist beyond the maximum you specify, the @IsTruncated@ response element is @true@ . If you do not include this parameter, it defaults to 100. Note that IAM might return fewer results, even when there are more results available. In that 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.
listServerCertificates
    :: ListServerCertificates
listServerCertificates =
  ListServerCertificates'
    {_lscPathPrefix = Nothing, _lscMarker = Nothing, _lscMaxItems = Nothing}


-- | The path prefix for filtering the results. For example: @/company/servercerts@ would get all server certificates for which the path starts with @/company/servercerts@ . This parameter is optional. If it is not included, it defaults to a slash (/), listing all server certificates. This parameter allows (per its <http://wikipedia.org/wiki/regex regex pattern> ) a string of characters consisting of either a forward slash (/) by itself or a string that must begin and end with forward slashes. In addition, it can contain any ASCII character from the ! (\u0021) through the DEL character (\u007F), including most punctuation characters, digits, and upper and lowercased letters.
lscPathPrefix :: Lens' ListServerCertificates (Maybe Text)
lscPathPrefix = lens _lscPathPrefix (\ s a -> s{_lscPathPrefix = 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 that you received to indicate where the next call should start.
lscMarker :: Lens' ListServerCertificates (Maybe Text)
lscMarker = lens _lscMarker (\ s a -> s{_lscMarker = a})

-- | (Optional) Use this only when paginating results to indicate the maximum number of items you want in the response. If additional items exist beyond the maximum you specify, the @IsTruncated@ response element is @true@ . If you do not include this parameter, it defaults to 100. Note that IAM might return fewer results, even when there are more results available. In that 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.
lscMaxItems :: Lens' ListServerCertificates (Maybe Natural)
lscMaxItems = lens _lscMaxItems (\ s a -> s{_lscMaxItems = a}) . mapping _Nat

instance AWSPager ListServerCertificates where
        page rq rs
          | stop (rs ^. lscrsIsTruncated) = Nothing
          | isNothing (rs ^. lscrsMarker) = Nothing
          | otherwise =
            Just $ rq & lscMarker .~ rs ^. lscrsMarker

instance AWSRequest ListServerCertificates where
        type Rs ListServerCertificates =
             ListServerCertificatesResponse
        request = postQuery iam
        response
          = receiveXMLWrapper "ListServerCertificatesResult"
              (\ s h x ->
                 ListServerCertificatesResponse' <$>
                   (x .@? "Marker") <*> (x .@? "IsTruncated") <*>
                     (pure (fromEnum s))
                     <*>
                     (x .@? "ServerCertificateMetadataList" .!@ mempty >>=
                        parseXMLList "member"))

instance Hashable ListServerCertificates where

instance NFData ListServerCertificates where

instance ToHeaders ListServerCertificates where
        toHeaders = const mempty

instance ToPath ListServerCertificates where
        toPath = const "/"

instance ToQuery ListServerCertificates where
        toQuery ListServerCertificates'{..}
          = mconcat
              ["Action" =:
                 ("ListServerCertificates" :: ByteString),
               "Version" =: ("2010-05-08" :: ByteString),
               "PathPrefix" =: _lscPathPrefix,
               "Marker" =: _lscMarker, "MaxItems" =: _lscMaxItems]

-- | Contains the response to a successful 'ListServerCertificates' request.
--
--
--
-- /See:/ 'listServerCertificatesResponse' smart constructor.
data ListServerCertificatesResponse = ListServerCertificatesResponse'
  { _lscrsMarker                        :: !(Maybe Text)
  , _lscrsIsTruncated                   :: !(Maybe Bool)
  , _lscrsResponseStatus                :: !Int
  , _lscrsServerCertificateMetadataList :: ![ServerCertificateMetadata]
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'ListServerCertificatesResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'lscrsMarker' - When @IsTruncated@ is @true@ , this element is present and contains the value to use for the @Marker@ parameter in a subsequent pagination request.
--
-- * 'lscrsIsTruncated' - 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.
--
-- * 'lscrsResponseStatus' - -- | The response status code.
--
-- * 'lscrsServerCertificateMetadataList' - A list of server certificates.
listServerCertificatesResponse
    :: Int -- ^ 'lscrsResponseStatus'
    -> ListServerCertificatesResponse
listServerCertificatesResponse pResponseStatus_ =
  ListServerCertificatesResponse'
    { _lscrsMarker = Nothing
    , _lscrsIsTruncated = Nothing
    , _lscrsResponseStatus = pResponseStatus_
    , _lscrsServerCertificateMetadataList = mempty
    }


-- | When @IsTruncated@ is @true@ , this element is present and contains the value to use for the @Marker@ parameter in a subsequent pagination request.
lscrsMarker :: Lens' ListServerCertificatesResponse (Maybe Text)
lscrsMarker = lens _lscrsMarker (\ s a -> s{_lscrsMarker = 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.
lscrsIsTruncated :: Lens' ListServerCertificatesResponse (Maybe Bool)
lscrsIsTruncated = lens _lscrsIsTruncated (\ s a -> s{_lscrsIsTruncated = a})

-- | -- | The response status code.
lscrsResponseStatus :: Lens' ListServerCertificatesResponse Int
lscrsResponseStatus = lens _lscrsResponseStatus (\ s a -> s{_lscrsResponseStatus = a})

-- | A list of server certificates.
lscrsServerCertificateMetadataList :: Lens' ListServerCertificatesResponse [ServerCertificateMetadata]
lscrsServerCertificateMetadataList = lens _lscrsServerCertificateMetadataList (\ s a -> s{_lscrsServerCertificateMetadataList = a}) . _Coerce

instance NFData ListServerCertificatesResponse where