{-# 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.EC2.DescribeImportImageTasks
-- Copyright   : (c) 2013-2016 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)
--
-- Displays details about an import virtual machine or import snapshot tasks that are already created.
module Network.AWS.EC2.DescribeImportImageTasks
    (
    -- * Creating a Request
      describeImportImageTasks
    , DescribeImportImageTasks
    -- * Request Lenses
    , diitFilters
    , diitImportTaskIds
    , diitNextToken
    , diitDryRun
    , diitMaxResults

    -- * Destructuring the Response
    , describeImportImageTasksResponse
    , DescribeImportImageTasksResponse
    -- * Response Lenses
    , diitrsNextToken
    , diitrsImportImageTasks
    , diitrsResponseStatus
    ) where

import           Network.AWS.EC2.Types
import           Network.AWS.EC2.Types.Product
import           Network.AWS.Lens
import           Network.AWS.Prelude
import           Network.AWS.Request
import           Network.AWS.Response

-- | Contains the parameters for DescribeImportImageTasks.
--
-- /See:/ 'describeImportImageTasks' smart constructor.
data DescribeImportImageTasks = DescribeImportImageTasks'
    { _diitFilters       :: !(Maybe [Filter])
    , _diitImportTaskIds :: !(Maybe [Text])
    , _diitNextToken     :: !(Maybe Text)
    , _diitDryRun        :: !(Maybe Bool)
    , _diitMaxResults    :: !(Maybe Int)
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeImportImageTasks' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'diitFilters'
--
-- * 'diitImportTaskIds'
--
-- * 'diitNextToken'
--
-- * 'diitDryRun'
--
-- * 'diitMaxResults'
describeImportImageTasks
    :: DescribeImportImageTasks
describeImportImageTasks =
    DescribeImportImageTasks'
    { _diitFilters = Nothing
    , _diitImportTaskIds = Nothing
    , _diitNextToken = Nothing
    , _diitDryRun = Nothing
    , _diitMaxResults = Nothing
    }

-- | Filter tasks using the 'task-state' filter and one of the following values: active, completed, deleting, deleted.
diitFilters :: Lens' DescribeImportImageTasks [Filter]
diitFilters = lens _diitFilters (\ s a -> s{_diitFilters = a}) . _Default . _Coerce;

-- | A list of import image task IDs.
diitImportTaskIds :: Lens' DescribeImportImageTasks [Text]
diitImportTaskIds = lens _diitImportTaskIds (\ s a -> s{_diitImportTaskIds = a}) . _Default . _Coerce;

-- | A token that indicates the next page of results.
diitNextToken :: Lens' DescribeImportImageTasks (Maybe Text)
diitNextToken = lens _diitNextToken (\ s a -> s{_diitNextToken = a});

-- | Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is 'DryRunOperation'. Otherwise, it is 'UnauthorizedOperation'.
diitDryRun :: Lens' DescribeImportImageTasks (Maybe Bool)
diitDryRun = lens _diitDryRun (\ s a -> s{_diitDryRun = a});

-- | The maximum number of results to return in a single call. To retrieve the remaining results, make another call with the returned 'NextToken' value.
diitMaxResults :: Lens' DescribeImportImageTasks (Maybe Int)
diitMaxResults = lens _diitMaxResults (\ s a -> s{_diitMaxResults = a});

instance AWSRequest DescribeImportImageTasks where
        type Rs DescribeImportImageTasks =
             DescribeImportImageTasksResponse
        request = postQuery ec2
        response
          = receiveXML
              (\ s h x ->
                 DescribeImportImageTasksResponse' <$>
                   (x .@? "nextToken") <*>
                     (x .@? "importImageTaskSet" .!@ mempty >>=
                        may (parseXMLList "item"))
                     <*> (pure (fromEnum s)))

instance Hashable DescribeImportImageTasks

instance NFData DescribeImportImageTasks

instance ToHeaders DescribeImportImageTasks where
        toHeaders = const mempty

instance ToPath DescribeImportImageTasks where
        toPath = const "/"

instance ToQuery DescribeImportImageTasks where
        toQuery DescribeImportImageTasks'{..}
          = mconcat
              ["Action" =:
                 ("DescribeImportImageTasks" :: ByteString),
               "Version" =: ("2016-04-01" :: ByteString),
               toQuery (toQueryList "Filters" <$> _diitFilters),
               toQuery
                 (toQueryList "ImportTaskId" <$> _diitImportTaskIds),
               "NextToken" =: _diitNextToken,
               "DryRun" =: _diitDryRun,
               "MaxResults" =: _diitMaxResults]

-- | Contains the output for DescribeImportImageTasks.
--
-- /See:/ 'describeImportImageTasksResponse' smart constructor.
data DescribeImportImageTasksResponse = DescribeImportImageTasksResponse'
    { _diitrsNextToken        :: !(Maybe Text)
    , _diitrsImportImageTasks :: !(Maybe [ImportImageTask])
    , _diitrsResponseStatus   :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeImportImageTasksResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'diitrsNextToken'
--
-- * 'diitrsImportImageTasks'
--
-- * 'diitrsResponseStatus'
describeImportImageTasksResponse
    :: Int -- ^ 'diitrsResponseStatus'
    -> DescribeImportImageTasksResponse
describeImportImageTasksResponse pResponseStatus_ =
    DescribeImportImageTasksResponse'
    { _diitrsNextToken = Nothing
    , _diitrsImportImageTasks = Nothing
    , _diitrsResponseStatus = pResponseStatus_
    }

-- | The token to use to get the next page of results. This value is 'null' when there are no more results to return.
diitrsNextToken :: Lens' DescribeImportImageTasksResponse (Maybe Text)
diitrsNextToken = lens _diitrsNextToken (\ s a -> s{_diitrsNextToken = a});

-- | A list of zero or more import image tasks that are currently active or were completed or canceled in the previous 7 days.
diitrsImportImageTasks :: Lens' DescribeImportImageTasksResponse [ImportImageTask]
diitrsImportImageTasks = lens _diitrsImportImageTasks (\ s a -> s{_diitrsImportImageTasks = a}) . _Default . _Coerce;

-- | The response status code.
diitrsResponseStatus :: Lens' DescribeImportImageTasksResponse Int
diitrsResponseStatus = lens _diitrsResponseStatus (\ s a -> s{_diitrsResponseStatus = a});

instance NFData DescribeImportImageTasksResponse