{-# 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.DescribeSpotFleetRequests
-- 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)
--
-- Describes your Spot fleet requests.
--
-- This operation returns paginated results.
module Network.AWS.EC2.DescribeSpotFleetRequests
    (
    -- * Creating a Request
      describeSpotFleetRequests
    , DescribeSpotFleetRequests
    -- * Request Lenses
    , dsfrSpotFleetRequestIds
    , dsfrNextToken
    , dsfrDryRun
    , dsfrMaxResults

    -- * Destructuring the Response
    , describeSpotFleetRequestsResponse
    , DescribeSpotFleetRequestsResponse
    -- * Response Lenses
    , dsfrrsNextToken
    , dsfrrsResponseStatus
    , dsfrrsSpotFleetRequestConfigs
    ) where

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

-- | Contains the parameters for DescribeSpotFleetRequests.
--
-- /See:/ 'describeSpotFleetRequests' smart constructor.
data DescribeSpotFleetRequests = DescribeSpotFleetRequests'
    { _dsfrSpotFleetRequestIds :: !(Maybe [Text])
    , _dsfrNextToken           :: !(Maybe Text)
    , _dsfrDryRun              :: !(Maybe Bool)
    , _dsfrMaxResults          :: !(Maybe Int)
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeSpotFleetRequests' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dsfrSpotFleetRequestIds'
--
-- * 'dsfrNextToken'
--
-- * 'dsfrDryRun'
--
-- * 'dsfrMaxResults'
describeSpotFleetRequests
    :: DescribeSpotFleetRequests
describeSpotFleetRequests =
    DescribeSpotFleetRequests'
    { _dsfrSpotFleetRequestIds = Nothing
    , _dsfrNextToken = Nothing
    , _dsfrDryRun = Nothing
    , _dsfrMaxResults = Nothing
    }

-- | The IDs of the Spot fleet requests.
dsfrSpotFleetRequestIds :: Lens' DescribeSpotFleetRequests [Text]
dsfrSpotFleetRequestIds = lens _dsfrSpotFleetRequestIds (\ s a -> s{_dsfrSpotFleetRequestIds = a}) . _Default . _Coerce;

-- | The token for the next set of results.
dsfrNextToken :: Lens' DescribeSpotFleetRequests (Maybe Text)
dsfrNextToken = lens _dsfrNextToken (\ s a -> s{_dsfrNextToken = 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'.
dsfrDryRun :: Lens' DescribeSpotFleetRequests (Maybe Bool)
dsfrDryRun = lens _dsfrDryRun (\ s a -> s{_dsfrDryRun = a});

-- | The maximum number of results to return in a single call. Specify a value between 1 and 1000. The default value is 1000. To retrieve the remaining results, make another call with the returned 'NextToken' value.
dsfrMaxResults :: Lens' DescribeSpotFleetRequests (Maybe Int)
dsfrMaxResults = lens _dsfrMaxResults (\ s a -> s{_dsfrMaxResults = a});

instance AWSPager DescribeSpotFleetRequests where
        page rq rs
          | stop (rs ^. dsfrrsNextToken) = Nothing
          | stop (rs ^. dsfrrsSpotFleetRequestConfigs) =
            Nothing
          | otherwise =
            Just $ rq & dsfrNextToken .~ rs ^. dsfrrsNextToken

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

instance Hashable DescribeSpotFleetRequests

instance NFData DescribeSpotFleetRequests

instance ToHeaders DescribeSpotFleetRequests where
        toHeaders = const mempty

instance ToPath DescribeSpotFleetRequests where
        toPath = const "/"

instance ToQuery DescribeSpotFleetRequests where
        toQuery DescribeSpotFleetRequests'{..}
          = mconcat
              ["Action" =:
                 ("DescribeSpotFleetRequests" :: ByteString),
               "Version" =: ("2016-04-01" :: ByteString),
               toQuery
                 (toQueryList "SpotFleetRequestId" <$>
                    _dsfrSpotFleetRequestIds),
               "NextToken" =: _dsfrNextToken,
               "DryRun" =: _dsfrDryRun,
               "MaxResults" =: _dsfrMaxResults]

-- | Contains the output of DescribeSpotFleetRequests.
--
-- /See:/ 'describeSpotFleetRequestsResponse' smart constructor.
data DescribeSpotFleetRequestsResponse = DescribeSpotFleetRequestsResponse'
    { _dsfrrsNextToken               :: !(Maybe Text)
    , _dsfrrsResponseStatus          :: !Int
    , _dsfrrsSpotFleetRequestConfigs :: ![SpotFleetRequestConfig]
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeSpotFleetRequestsResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'dsfrrsNextToken'
--
-- * 'dsfrrsResponseStatus'
--
-- * 'dsfrrsSpotFleetRequestConfigs'
describeSpotFleetRequestsResponse
    :: Int -- ^ 'dsfrrsResponseStatus'
    -> DescribeSpotFleetRequestsResponse
describeSpotFleetRequestsResponse pResponseStatus_ =
    DescribeSpotFleetRequestsResponse'
    { _dsfrrsNextToken = Nothing
    , _dsfrrsResponseStatus = pResponseStatus_
    , _dsfrrsSpotFleetRequestConfigs = mempty
    }

-- | The token required to retrieve the next set of results. This value is 'null' when there are no more results to return.
dsfrrsNextToken :: Lens' DescribeSpotFleetRequestsResponse (Maybe Text)
dsfrrsNextToken = lens _dsfrrsNextToken (\ s a -> s{_dsfrrsNextToken = a});

-- | The response status code.
dsfrrsResponseStatus :: Lens' DescribeSpotFleetRequestsResponse Int
dsfrrsResponseStatus = lens _dsfrrsResponseStatus (\ s a -> s{_dsfrrsResponseStatus = a});

-- | Information about the configuration of your Spot fleet.
dsfrrsSpotFleetRequestConfigs :: Lens' DescribeSpotFleetRequestsResponse [SpotFleetRequestConfig]
dsfrrsSpotFleetRequestConfigs = lens _dsfrrsSpotFleetRequestConfigs (\ s a -> s{_dsfrrsSpotFleetRequestConfigs = a}) . _Coerce;

instance NFData DescribeSpotFleetRequestsResponse