{-# 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.Discovery.DescribeAgents
-- 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)
--
-- Lists AWS agents by ID or lists all agents associated with your user account if you did not specify an agent ID.
--
--
module Network.AWS.Discovery.DescribeAgents
    (
    -- * Creating a Request
      describeAgents
    , DescribeAgents
    -- * Request Lenses
    , daAgentIds
    , daNextToken
    , daMaxResults

    -- * Destructuring the Response
    , describeAgentsResponse
    , DescribeAgentsResponse
    -- * Response Lenses
    , darsAgentsInfo
    , darsNextToken
    , darsResponseStatus
    ) where

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

-- | /See:/ 'describeAgents' smart constructor.
data DescribeAgents = DescribeAgents'
    { _daAgentIds   :: !(Maybe [Text])
    , _daNextToken  :: !(Maybe Text)
    , _daMaxResults :: !(Maybe Int)
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeAgents' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'daAgentIds' - The agent IDs for which you want information. If you specify no IDs, the system returns information about all agents associated with your AWS user account.
--
-- * 'daNextToken' - A token to start the list. Use this token to get the next set of results.
--
-- * 'daMaxResults' - The total number of agents to return. The maximum value is 100.
describeAgents
    :: DescribeAgents
describeAgents =
    DescribeAgents'
    { _daAgentIds = Nothing
    , _daNextToken = Nothing
    , _daMaxResults = Nothing
    }

-- | The agent IDs for which you want information. If you specify no IDs, the system returns information about all agents associated with your AWS user account.
daAgentIds :: Lens' DescribeAgents [Text]
daAgentIds = lens _daAgentIds (\ s a -> s{_daAgentIds = a}) . _Default . _Coerce;

-- | A token to start the list. Use this token to get the next set of results.
daNextToken :: Lens' DescribeAgents (Maybe Text)
daNextToken = lens _daNextToken (\ s a -> s{_daNextToken = a});

-- | The total number of agents to return. The maximum value is 100.
daMaxResults :: Lens' DescribeAgents (Maybe Int)
daMaxResults = lens _daMaxResults (\ s a -> s{_daMaxResults = a});

instance AWSRequest DescribeAgents where
        type Rs DescribeAgents = DescribeAgentsResponse
        request = postJSON discovery
        response
          = receiveJSON
              (\ s h x ->
                 DescribeAgentsResponse' <$>
                   (x .?> "agentsInfo" .!@ mempty) <*>
                     (x .?> "nextToken")
                     <*> (pure (fromEnum s)))

instance Hashable DescribeAgents

instance NFData DescribeAgents

instance ToHeaders DescribeAgents where
        toHeaders
          = const
              (mconcat
                 ["X-Amz-Target" =#
                    ("AWSPoseidonService_V2015_11_01.DescribeAgents" ::
                       ByteString),
                  "Content-Type" =#
                    ("application/x-amz-json-1.1" :: ByteString)])

instance ToJSON DescribeAgents where
        toJSON DescribeAgents'{..}
          = object
              (catMaybes
                 [("agentIds" .=) <$> _daAgentIds,
                  ("nextToken" .=) <$> _daNextToken,
                  ("maxResults" .=) <$> _daMaxResults])

instance ToPath DescribeAgents where
        toPath = const "/"

instance ToQuery DescribeAgents where
        toQuery = const mempty

-- | /See:/ 'describeAgentsResponse' smart constructor.
data DescribeAgentsResponse = DescribeAgentsResponse'
    { _darsAgentsInfo     :: !(Maybe [AgentInfo])
    , _darsNextToken      :: !(Maybe Text)
    , _darsResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeAgentsResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'darsAgentsInfo' - Lists AWS agents by ID or lists all agents associated with your user account if you did not specify an agent ID. The output includes agent IDs, IP addresses, media access control (MAC) addresses, agent health, host name where the agent resides, and the version number of each agent.
--
-- * 'darsNextToken' - The call returns a token. Use this token to get the next set of results.
--
-- * 'darsResponseStatus' - -- | The response status code.
describeAgentsResponse
    :: Int -- ^ 'darsResponseStatus'
    -> DescribeAgentsResponse
describeAgentsResponse pResponseStatus_ =
    DescribeAgentsResponse'
    { _darsAgentsInfo = Nothing
    , _darsNextToken = Nothing
    , _darsResponseStatus = pResponseStatus_
    }

-- | Lists AWS agents by ID or lists all agents associated with your user account if you did not specify an agent ID. The output includes agent IDs, IP addresses, media access control (MAC) addresses, agent health, host name where the agent resides, and the version number of each agent.
darsAgentsInfo :: Lens' DescribeAgentsResponse [AgentInfo]
darsAgentsInfo = lens _darsAgentsInfo (\ s a -> s{_darsAgentsInfo = a}) . _Default . _Coerce;

-- | The call returns a token. Use this token to get the next set of results.
darsNextToken :: Lens' DescribeAgentsResponse (Maybe Text)
darsNextToken = lens _darsNextToken (\ s a -> s{_darsNextToken = a});

-- | -- | The response status code.
darsResponseStatus :: Lens' DescribeAgentsResponse Int
darsResponseStatus = lens _darsResponseStatus (\ s a -> s{_darsResponseStatus = a});

instance NFData DescribeAgentsResponse