{-# 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.ImportExport.ListJobs
-- 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)
--
-- This operation returns the jobs associated with the requester. AWS
-- Import\/Export lists the jobs in reverse chronological order based on
-- the date of creation. For example if Job Test1 was created 2009Dec30 and
-- Test2 was created 2010Feb05, the ListJobs operation would return Test2
-- followed by Test1.
--
-- /See:/ <http://docs.aws.amazon.com/AWSImportExport/latest/DG/WebListJobs.html AWS API Reference> for ListJobs.
--
-- This operation returns paginated results.
module Network.AWS.ImportExport.ListJobs
    (
    -- * Creating a Request
      listJobs
    , ListJobs
    -- * Request Lenses
    , ljAPIVersion
    , ljMarker
    , ljMaxJobs

    -- * Destructuring the Response
    , listJobsResponse
    , ListJobsResponse
    -- * Response Lenses
    , ljrsJobs
    , ljrsIsTruncated
    , ljrsStatus
    ) where

import           Network.AWS.ImportExport.Types
import           Network.AWS.ImportExport.Types.Product
import           Network.AWS.Pager
import           Network.AWS.Prelude
import           Network.AWS.Request
import           Network.AWS.Response

-- | Input structure for the ListJobs operation.
--
-- /See:/ 'listJobs' smart constructor.
data ListJobs = ListJobs'
    { _ljAPIVersion :: !(Maybe Text)
    , _ljMarker     :: !(Maybe Text)
    , _ljMaxJobs    :: !(Maybe Int)
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListJobs' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'ljAPIVersion'
--
-- * 'ljMarker'
--
-- * 'ljMaxJobs'
listJobs
    :: ListJobs
listJobs =
    ListJobs'
    { _ljAPIVersion = Nothing
    , _ljMarker = Nothing
    , _ljMaxJobs = Nothing
    }

-- | Undocumented member.
ljAPIVersion :: Lens' ListJobs (Maybe Text)
ljAPIVersion = lens _ljAPIVersion (\ s a -> s{_ljAPIVersion = a});

-- | Undocumented member.
ljMarker :: Lens' ListJobs (Maybe Text)
ljMarker = lens _ljMarker (\ s a -> s{_ljMarker = a});

-- | Undocumented member.
ljMaxJobs :: Lens' ListJobs (Maybe Int)
ljMaxJobs = lens _ljMaxJobs (\ s a -> s{_ljMaxJobs = a});

instance AWSPager ListJobs where
        page rq rs
          | stop (rs ^. ljrsIsTruncated) = Nothing
          | isNothing (rs ^? ljrsJobs . _last . jobJobId) =
            Nothing
          | otherwise =
            Just $ rq &
              ljMarker .~ rs ^? ljrsJobs . _last . jobJobId

instance AWSRequest ListJobs where
        type Sv ListJobs = ImportExport
        type Rs ListJobs = ListJobsResponse
        request = postQuery
        response
          = receiveXMLWrapper "ListJobsResult"
              (\ s h x ->
                 ListJobsResponse' <$>
                   (x .@? "Jobs" .!@ mempty >>=
                      may (parseXMLList "member"))
                     <*> (x .@? "IsTruncated")
                     <*> (pure (fromEnum s)))

instance ToHeaders ListJobs where
        toHeaders = const mempty

instance ToPath ListJobs where
        toPath = const "/"

instance ToQuery ListJobs where
        toQuery ListJobs'{..}
          = mconcat
              ["Operation=ListJobs",
               "Action" =: ("ListJobs" :: ByteString),
               "Version" =: ("2010-06-01" :: ByteString),
               "APIVersion" =: _ljAPIVersion, "Marker" =: _ljMarker,
               "MaxJobs" =: _ljMaxJobs]

-- | Output structure for the ListJobs operation.
--
-- /See:/ 'listJobsResponse' smart constructor.
data ListJobsResponse = ListJobsResponse'
    { _ljrsJobs        :: !(Maybe [Job])
    , _ljrsIsTruncated :: !(Maybe Bool)
    , _ljrsStatus      :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListJobsResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'ljrsJobs'
--
-- * 'ljrsIsTruncated'
--
-- * 'ljrsStatus'
listJobsResponse
    :: Int -- ^ 'ljrsStatus'
    -> ListJobsResponse
listJobsResponse pStatus_ =
    ListJobsResponse'
    { _ljrsJobs = Nothing
    , _ljrsIsTruncated = Nothing
    , _ljrsStatus = pStatus_
    }

-- | Undocumented member.
ljrsJobs :: Lens' ListJobsResponse [Job]
ljrsJobs = lens _ljrsJobs (\ s a -> s{_ljrsJobs = a}) . _Default . _Coerce;

-- | Undocumented member.
ljrsIsTruncated :: Lens' ListJobsResponse (Maybe Bool)
ljrsIsTruncated = lens _ljrsIsTruncated (\ s a -> s{_ljrsIsTruncated = a});

-- | The response status code.
ljrsStatus :: Lens' ListJobsResponse Int
ljrsStatus = lens _ljrsStatus (\ s a -> s{_ljrsStatus = a});