{-# 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.ElasticTranscoder.ListJobsByPipeline
-- 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)
--
-- The ListJobsByPipeline operation gets a list of the jobs currently in a
-- pipeline.
--
-- Elastic Transcoder returns all of the jobs currently in the specified
-- pipeline. The response body contains one element for each job that
-- satisfies the search criteria.
--
-- /See:/ <http://docs.aws.amazon.com/elastictranscoder/latest/developerguide/ListJobsByPipeline.html AWS API Reference> for ListJobsByPipeline.
--
-- This operation returns paginated results.
module Network.AWS.ElasticTranscoder.ListJobsByPipeline
    (
    -- * Creating a Request
      listJobsByPipeline
    , ListJobsByPipeline
    -- * Request Lenses
    , ljbpAscending
    , ljbpPageToken
    , ljbpPipelineId

    -- * Destructuring the Response
    , listJobsByPipelineResponse
    , ListJobsByPipelineResponse
    -- * Response Lenses
    , ljbprsNextPageToken
    , ljbprsJobs
    , ljbprsResponseStatus
    ) where

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

-- | The 'ListJobsByPipelineRequest' structure.
--
-- /See:/ 'listJobsByPipeline' smart constructor.
data ListJobsByPipeline = ListJobsByPipeline'
    { _ljbpAscending  :: !(Maybe Text)
    , _ljbpPageToken  :: !(Maybe Text)
    , _ljbpPipelineId :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListJobsByPipeline' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'ljbpAscending'
--
-- * 'ljbpPageToken'
--
-- * 'ljbpPipelineId'
listJobsByPipeline
    :: Text -- ^ 'ljbpPipelineId'
    -> ListJobsByPipeline
listJobsByPipeline pPipelineId_ =
    ListJobsByPipeline'
    { _ljbpAscending = Nothing
    , _ljbpPageToken = Nothing
    , _ljbpPipelineId = pPipelineId_
    }

-- | To list jobs in chronological order by the date and time that they were
-- submitted, enter 'true'. To list jobs in reverse chronological order,
-- enter 'false'.
ljbpAscending :: Lens' ListJobsByPipeline (Maybe Text)
ljbpAscending = lens _ljbpAscending (\ s a -> s{_ljbpAscending = a});

-- | When Elastic Transcoder returns more than one page of results, use
-- 'pageToken' in subsequent 'GET' requests to get each successive page of
-- results.
ljbpPageToken :: Lens' ListJobsByPipeline (Maybe Text)
ljbpPageToken = lens _ljbpPageToken (\ s a -> s{_ljbpPageToken = a});

-- | The ID of the pipeline for which you want to get job information.
ljbpPipelineId :: Lens' ListJobsByPipeline Text
ljbpPipelineId = lens _ljbpPipelineId (\ s a -> s{_ljbpPipelineId = a});

instance AWSPager ListJobsByPipeline where
        page rq rs
          | stop (rs ^. ljbprsNextPageToken) = Nothing
          | stop (rs ^. ljbprsJobs) = Nothing
          | otherwise =
            Just $ rq &
              ljbpPageToken .~ rs ^. ljbprsNextPageToken

instance AWSRequest ListJobsByPipeline where
        type Rs ListJobsByPipeline =
             ListJobsByPipelineResponse
        request = get elasticTranscoder
        response
          = receiveJSON
              (\ s h x ->
                 ListJobsByPipelineResponse' <$>
                   (x .?> "NextPageToken") <*> (x .?> "Jobs" .!@ mempty)
                     <*> (pure (fromEnum s)))

instance ToHeaders ListJobsByPipeline where
        toHeaders = const mempty

instance ToPath ListJobsByPipeline where
        toPath ListJobsByPipeline'{..}
          = mconcat
              ["/2012-09-25/jobsByPipeline/", toBS _ljbpPipelineId]

instance ToQuery ListJobsByPipeline where
        toQuery ListJobsByPipeline'{..}
          = mconcat
              ["Ascending" =: _ljbpAscending,
               "PageToken" =: _ljbpPageToken]

-- | The 'ListJobsByPipelineResponse' structure.
--
-- /See:/ 'listJobsByPipelineResponse' smart constructor.
data ListJobsByPipelineResponse = ListJobsByPipelineResponse'
    { _ljbprsNextPageToken  :: !(Maybe Text)
    , _ljbprsJobs           :: !(Maybe [Job'])
    , _ljbprsResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListJobsByPipelineResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'ljbprsNextPageToken'
--
-- * 'ljbprsJobs'
--
-- * 'ljbprsResponseStatus'
listJobsByPipelineResponse
    :: Int -- ^ 'ljbprsResponseStatus'
    -> ListJobsByPipelineResponse
listJobsByPipelineResponse pResponseStatus_ =
    ListJobsByPipelineResponse'
    { _ljbprsNextPageToken = Nothing
    , _ljbprsJobs = Nothing
    , _ljbprsResponseStatus = pResponseStatus_
    }

-- | A value that you use to access the second and subsequent pages of
-- results, if any. When the jobs in the specified pipeline fit on one page
-- or when you\'ve reached the last page of results, the value of
-- 'NextPageToken' is 'null'.
ljbprsNextPageToken :: Lens' ListJobsByPipelineResponse (Maybe Text)
ljbprsNextPageToken = lens _ljbprsNextPageToken (\ s a -> s{_ljbprsNextPageToken = a});

-- | An array of 'Job' objects that are in the specified pipeline.
ljbprsJobs :: Lens' ListJobsByPipelineResponse [Job']
ljbprsJobs = lens _ljbprsJobs (\ s a -> s{_ljbprsJobs = a}) . _Default . _Coerce;

-- | The response status code.
ljbprsResponseStatus :: Lens' ListJobsByPipelineResponse Int
ljbprsResponseStatus = lens _ljbprsResponseStatus (\ s a -> s{_ljbprsResponseStatus = a});