{-# LANGUAGE DataKinds                   #-}
{-# LANGUAGE DeriveGeneric               #-}
{-# LANGUAGE FlexibleInstances           #-}
{-# LANGUAGE GeneralizedNewtypeDeriving  #-}
{-# LANGUAGE LambdaCase                  #-}
{-# LANGUAGE NoImplicitPrelude           #-}
{-# LANGUAGE OverloadedStrings           #-}
{-# LANGUAGE RecordWildCards             #-}
{-# LANGUAGE TypeFamilies                #-}

{-# OPTIONS_GHC -fno-warn-unused-imports #-}

-- Module      : Network.AWS.CloudTrail.DescribeTrails
-- Copyright   : (c) 2013-2014 Brendan Hay <brendan.g.hay@gmail.com>
-- License     : This Source Code Form is subject to the terms of
--               the Mozilla Public License, v. 2.0.
--               A copy of the MPL can be found in the LICENSE file or
--               you can obtain it at http://mozilla.org/MPL/2.0/.
-- Maintainer  : Brendan Hay <brendan.g.hay@gmail.com>
-- Stability   : experimental
-- Portability : non-portable (GHC extensions)
--
-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- | Retrieves settings for the trail associated with the current region for your
-- account.
--
-- <http://docs.aws.amazon.com/awscloudtrail/latest/APIReference/API_DescribeTrails.html>
module Network.AWS.CloudTrail.DescribeTrails
    (
    -- * Request
      DescribeTrails
    -- ** Request constructor
    , describeTrails
    -- ** Request lenses
    , dtTrailNameList

    -- * Response
    , DescribeTrailsResponse
    -- ** Response constructor
    , describeTrailsResponse
    -- ** Response lenses
    , dtrTrailList
    ) where

import Network.AWS.Data (Object)
import Network.AWS.Prelude
import Network.AWS.Request.JSON
import Network.AWS.CloudTrail.Types
import qualified GHC.Exts

newtype DescribeTrails = DescribeTrails
    { _dtTrailNameList :: List "trailNameList" Text
    } deriving (Eq, Ord, Read, Show, Monoid, Semigroup)

instance GHC.Exts.IsList DescribeTrails where
    type Item DescribeTrails = Text

    fromList = DescribeTrails . GHC.Exts.fromList
    toList   = GHC.Exts.toList . _dtTrailNameList

-- | 'DescribeTrails' constructor.
--
-- The fields accessible through corresponding lenses are:
--
-- * 'dtTrailNameList' @::@ ['Text']
--
describeTrails :: DescribeTrails
describeTrails = DescribeTrails
    { _dtTrailNameList = mempty
    }

-- | The trail returned.
dtTrailNameList :: Lens' DescribeTrails [Text]
dtTrailNameList = lens _dtTrailNameList (\s a -> s { _dtTrailNameList = a }) . _List

newtype DescribeTrailsResponse = DescribeTrailsResponse
    { _dtrTrailList :: List "trailList" Trail
    } deriving (Eq, Read, Show, Monoid, Semigroup)

instance GHC.Exts.IsList DescribeTrailsResponse where
    type Item DescribeTrailsResponse = Trail

    fromList = DescribeTrailsResponse . GHC.Exts.fromList
    toList   = GHC.Exts.toList . _dtrTrailList

-- | 'DescribeTrailsResponse' constructor.
--
-- The fields accessible through corresponding lenses are:
--
-- * 'dtrTrailList' @::@ ['Trail']
--
describeTrailsResponse :: DescribeTrailsResponse
describeTrailsResponse = DescribeTrailsResponse
    { _dtrTrailList = mempty
    }

-- | The list of trails.
dtrTrailList :: Lens' DescribeTrailsResponse [Trail]
dtrTrailList = lens _dtrTrailList (\s a -> s { _dtrTrailList = a }) . _List

instance ToPath DescribeTrails where
    toPath = const "/"

instance ToQuery DescribeTrails where
    toQuery = const mempty

instance ToHeaders DescribeTrails

instance ToJSON DescribeTrails where
    toJSON DescribeTrails{..} = object
        [ "trailNameList" .= _dtTrailNameList
        ]

instance AWSRequest DescribeTrails where
    type Sv DescribeTrails = CloudTrail
    type Rs DescribeTrails = DescribeTrailsResponse

    request  = post "DescribeTrails"
    response = jsonResponse

instance FromJSON DescribeTrailsResponse where
    parseJSON = withObject "DescribeTrailsResponse" $ \o -> DescribeTrailsResponse
        <$> o .:? "trailList" .!= mempty