{-# 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.RDS.DescribeCertificates
-- 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)
--
-- Lists the set of CA certificates provided by Amazon RDS for this AWS
-- account.
--
-- /See:/ <http://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_DescribeCertificates.html AWS API Reference> for DescribeCertificates.
module Network.AWS.RDS.DescribeCertificates
    (
    -- * Creating a Request
      describeCertificates
    , DescribeCertificates
    -- * Request Lenses
    , dcFilters
    , dcCertificateIdentifier
    , dcMarker
    , dcMaxRecords

    -- * Destructuring the Response
    , describeCertificatesResponse
    , DescribeCertificatesResponse
    -- * Response Lenses
    , dcrsCertificates
    , dcrsMarker
    , dcrsResponseStatus
    ) where

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

-- |
--
-- /See:/ 'describeCertificates' smart constructor.
data DescribeCertificates = DescribeCertificates'
    { _dcFilters               :: !(Maybe [Filter])
    , _dcCertificateIdentifier :: !(Maybe Text)
    , _dcMarker                :: !(Maybe Text)
    , _dcMaxRecords            :: !(Maybe Int)
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeCertificates' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dcFilters'
--
-- * 'dcCertificateIdentifier'
--
-- * 'dcMarker'
--
-- * 'dcMaxRecords'
describeCertificates
    :: DescribeCertificates
describeCertificates =
    DescribeCertificates'
    { _dcFilters = Nothing
    , _dcCertificateIdentifier = Nothing
    , _dcMarker = Nothing
    , _dcMaxRecords = Nothing
    }

-- | This parameter is not currently supported.
dcFilters :: Lens' DescribeCertificates [Filter]
dcFilters = lens _dcFilters (\ s a -> s{_dcFilters = a}) . _Default . _Coerce;

-- | The user-supplied certificate identifier. If this parameter is
-- specified, information for only the identified certificate is returned.
-- This parameter isn\'t case-sensitive.
--
-- Constraints:
--
-- -   Must contain from 1 to 63 alphanumeric characters or hyphens
-- -   First character must be a letter
-- -   Cannot end with a hyphen or contain two consecutive hyphens
dcCertificateIdentifier :: Lens' DescribeCertificates (Maybe Text)
dcCertificateIdentifier = lens _dcCertificateIdentifier (\ s a -> s{_dcCertificateIdentifier = a});

-- | An optional pagination token provided by a previous DescribeCertificates
-- request. If this parameter is specified, the response includes only
-- records beyond the marker, up to the value specified by 'MaxRecords'.
dcMarker :: Lens' DescribeCertificates (Maybe Text)
dcMarker = lens _dcMarker (\ s a -> s{_dcMarker = a});

-- | The maximum number of records to include in the response. If more
-- records exist than the specified 'MaxRecords' value, a pagination token
-- called a marker is included in the response so that the remaining
-- results can be retrieved.
--
-- Default: 100
--
-- Constraints: Minimum 20, maximum 100.
dcMaxRecords :: Lens' DescribeCertificates (Maybe Int)
dcMaxRecords = lens _dcMaxRecords (\ s a -> s{_dcMaxRecords = a});

instance AWSRequest DescribeCertificates where
        type Rs DescribeCertificates =
             DescribeCertificatesResponse
        request = postQuery rDS
        response
          = receiveXMLWrapper "DescribeCertificatesResult"
              (\ s h x ->
                 DescribeCertificatesResponse' <$>
                   (x .@? "Certificates" .!@ mempty >>=
                      may (parseXMLList "Certificate"))
                     <*> (x .@? "Marker")
                     <*> (pure (fromEnum s)))

instance ToHeaders DescribeCertificates where
        toHeaders = const mempty

instance ToPath DescribeCertificates where
        toPath = const "/"

instance ToQuery DescribeCertificates where
        toQuery DescribeCertificates'{..}
          = mconcat
              ["Action" =: ("DescribeCertificates" :: ByteString),
               "Version" =: ("2014-10-31" :: ByteString),
               "Filters" =:
                 toQuery (toQueryList "Filter" <$> _dcFilters),
               "CertificateIdentifier" =: _dcCertificateIdentifier,
               "Marker" =: _dcMarker, "MaxRecords" =: _dcMaxRecords]

-- | Data returned by the __DescribeCertificates__ action.
--
-- /See:/ 'describeCertificatesResponse' smart constructor.
data DescribeCertificatesResponse = DescribeCertificatesResponse'
    { _dcrsCertificates   :: !(Maybe [Certificate])
    , _dcrsMarker         :: !(Maybe Text)
    , _dcrsResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeCertificatesResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dcrsCertificates'
--
-- * 'dcrsMarker'
--
-- * 'dcrsResponseStatus'
describeCertificatesResponse
    :: Int -- ^ 'dcrsResponseStatus'
    -> DescribeCertificatesResponse
describeCertificatesResponse pResponseStatus_ =
    DescribeCertificatesResponse'
    { _dcrsCertificates = Nothing
    , _dcrsMarker = Nothing
    , _dcrsResponseStatus = pResponseStatus_
    }

-- | The list of Certificate objects for the AWS account.
dcrsCertificates :: Lens' DescribeCertificatesResponse [Certificate]
dcrsCertificates = lens _dcrsCertificates (\ s a -> s{_dcrsCertificates = a}) . _Default . _Coerce;

-- | An optional pagination token provided by a previous DescribeCertificates
-- request. If this parameter is specified, the response includes only
-- records beyond the marker, up to the value specified by 'MaxRecords' .
dcrsMarker :: Lens' DescribeCertificatesResponse (Maybe Text)
dcrsMarker = lens _dcrsMarker (\ s a -> s{_dcrsMarker = a});

-- | The response status code.
dcrsResponseStatus :: Lens' DescribeCertificatesResponse Int
dcrsResponseStatus = lens _dcrsResponseStatus (\ s a -> s{_dcrsResponseStatus = a});