{-# 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.DescribeOptionGroupOptions
-- Copyright   : (c) 2013-2017 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)
--
-- Describes all available options.
--
--
--
-- This operation returns paginated results.
module Network.AWS.RDS.DescribeOptionGroupOptions
    (
    -- * Creating a Request
      describeOptionGroupOptions
    , DescribeOptionGroupOptions
    -- * Request Lenses
    , dogoFilters
    , dogoMajorEngineVersion
    , dogoMarker
    , dogoMaxRecords
    , dogoEngineName

    -- * Destructuring the Response
    , describeOptionGroupOptionsResponse
    , DescribeOptionGroupOptionsResponse
    -- * Response Lenses
    , dogorsOptionGroupOptions
    , dogorsMarker
    , dogorsResponseStatus
    ) where

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

-- |
--
--
--
-- /See:/ 'describeOptionGroupOptions' smart constructor.
data DescribeOptionGroupOptions = DescribeOptionGroupOptions'
  { _dogoFilters            :: !(Maybe [Filter])
  , _dogoMajorEngineVersion :: !(Maybe Text)
  , _dogoMarker             :: !(Maybe Text)
  , _dogoMaxRecords         :: !(Maybe Int)
  , _dogoEngineName         :: !Text
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'DescribeOptionGroupOptions' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dogoFilters' - This parameter is not currently supported.
--
-- * 'dogoMajorEngineVersion' - If specified, filters the results to include only options for the specified major engine version.
--
-- * 'dogoMarker' - An optional pagination token provided by a previous request. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by @MaxRecords@ .
--
-- * 'dogoMaxRecords' - 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.
--
-- * 'dogoEngineName' - A required parameter. Options available for the given engine name are described.
describeOptionGroupOptions
    :: Text -- ^ 'dogoEngineName'
    -> DescribeOptionGroupOptions
describeOptionGroupOptions pEngineName_ =
  DescribeOptionGroupOptions'
  { _dogoFilters = Nothing
  , _dogoMajorEngineVersion = Nothing
  , _dogoMarker = Nothing
  , _dogoMaxRecords = Nothing
  , _dogoEngineName = pEngineName_
  }


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

-- | If specified, filters the results to include only options for the specified major engine version.
dogoMajorEngineVersion :: Lens' DescribeOptionGroupOptions (Maybe Text)
dogoMajorEngineVersion = lens _dogoMajorEngineVersion (\ s a -> s{_dogoMajorEngineVersion = a});

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

-- | A required parameter. Options available for the given engine name are described.
dogoEngineName :: Lens' DescribeOptionGroupOptions Text
dogoEngineName = lens _dogoEngineName (\ s a -> s{_dogoEngineName = a});

instance AWSPager DescribeOptionGroupOptions where
        page rq rs
          | stop (rs ^. dogorsMarker) = Nothing
          | stop (rs ^. dogorsOptionGroupOptions) = Nothing
          | otherwise =
            Just $ rq & dogoMarker .~ rs ^. dogorsMarker

instance AWSRequest DescribeOptionGroupOptions where
        type Rs DescribeOptionGroupOptions =
             DescribeOptionGroupOptionsResponse
        request = postQuery rds
        response
          = receiveXMLWrapper
              "DescribeOptionGroupOptionsResult"
              (\ s h x ->
                 DescribeOptionGroupOptionsResponse' <$>
                   (x .@? "OptionGroupOptions" .!@ mempty >>=
                      may (parseXMLList "OptionGroupOption"))
                     <*> (x .@? "Marker")
                     <*> (pure (fromEnum s)))

instance Hashable DescribeOptionGroupOptions where

instance NFData DescribeOptionGroupOptions where

instance ToHeaders DescribeOptionGroupOptions where
        toHeaders = const mempty

instance ToPath DescribeOptionGroupOptions where
        toPath = const "/"

instance ToQuery DescribeOptionGroupOptions where
        toQuery DescribeOptionGroupOptions'{..}
          = mconcat
              ["Action" =:
                 ("DescribeOptionGroupOptions" :: ByteString),
               "Version" =: ("2014-10-31" :: ByteString),
               "Filters" =:
                 toQuery (toQueryList "Filter" <$> _dogoFilters),
               "MajorEngineVersion" =: _dogoMajorEngineVersion,
               "Marker" =: _dogoMarker,
               "MaxRecords" =: _dogoMaxRecords,
               "EngineName" =: _dogoEngineName]

-- |
--
--
--
-- /See:/ 'describeOptionGroupOptionsResponse' smart constructor.
data DescribeOptionGroupOptionsResponse = DescribeOptionGroupOptionsResponse'
  { _dogorsOptionGroupOptions :: !(Maybe [OptionGroupOption])
  , _dogorsMarker             :: !(Maybe Text)
  , _dogorsResponseStatus     :: !Int
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'DescribeOptionGroupOptionsResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dogorsOptionGroupOptions' - Undocumented member.
--
-- * 'dogorsMarker' - An optional pagination token provided by a previous request. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by @MaxRecords@ .
--
-- * 'dogorsResponseStatus' - -- | The response status code.
describeOptionGroupOptionsResponse
    :: Int -- ^ 'dogorsResponseStatus'
    -> DescribeOptionGroupOptionsResponse
describeOptionGroupOptionsResponse pResponseStatus_ =
  DescribeOptionGroupOptionsResponse'
  { _dogorsOptionGroupOptions = Nothing
  , _dogorsMarker = Nothing
  , _dogorsResponseStatus = pResponseStatus_
  }


-- | Undocumented member.
dogorsOptionGroupOptions :: Lens' DescribeOptionGroupOptionsResponse [OptionGroupOption]
dogorsOptionGroupOptions = lens _dogorsOptionGroupOptions (\ s a -> s{_dogorsOptionGroupOptions = a}) . _Default . _Coerce;

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

-- | -- | The response status code.
dogorsResponseStatus :: Lens' DescribeOptionGroupOptionsResponse Int
dogorsResponseStatus = lens _dogorsResponseStatus (\ s a -> s{_dogorsResponseStatus = a});

instance NFData DescribeOptionGroupOptionsResponse
         where