{-# 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.MQ.ListBrokers
-- Copyright   : (c) 2013-2018 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay+amazonka@gmail.com>
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Returns a list of all brokers.
module Network.AWS.MQ.ListBrokers
    (
    -- * Creating a Request
      listBrokers
    , ListBrokers
    -- * Request Lenses
    , lbNextToken
    , lbMaxResults

    -- * Destructuring the Response
    , listBrokersResponse
    , ListBrokersResponse
    -- * Response Lenses
    , lbrsNextToken
    , lbrsBrokerSummaries
    , lbrsResponseStatus
    ) where

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

-- | /See:/ 'listBrokers' smart constructor.
data ListBrokers = ListBrokers'
  { _lbNextToken  :: !(Maybe Text)
  , _lbMaxResults :: !(Maybe Nat)
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'ListBrokers' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'lbNextToken' - The token that specifies the next page of results Amazon MQ should return. To request the first page, leave nextToken empty.
--
-- * 'lbMaxResults' - The maximum number of brokers that Amazon MQ can return per page (20 by default). This value must be an integer from 5 to 100.
listBrokers
    :: ListBrokers
listBrokers = ListBrokers' {_lbNextToken = Nothing, _lbMaxResults = Nothing}


-- | The token that specifies the next page of results Amazon MQ should return. To request the first page, leave nextToken empty.
lbNextToken :: Lens' ListBrokers (Maybe Text)
lbNextToken = lens _lbNextToken (\ s a -> s{_lbNextToken = a})

-- | The maximum number of brokers that Amazon MQ can return per page (20 by default). This value must be an integer from 5 to 100.
lbMaxResults :: Lens' ListBrokers (Maybe Natural)
lbMaxResults = lens _lbMaxResults (\ s a -> s{_lbMaxResults = a}) . mapping _Nat

instance AWSRequest ListBrokers where
        type Rs ListBrokers = ListBrokersResponse
        request = get mq
        response
          = receiveJSON
              (\ s h x ->
                 ListBrokersResponse' <$>
                   (x .?> "nextToken") <*>
                     (x .?> "brokerSummaries" .!@ mempty)
                     <*> (pure (fromEnum s)))

instance Hashable ListBrokers where

instance NFData ListBrokers where

instance ToHeaders ListBrokers where
        toHeaders
          = const
              (mconcat
                 ["Content-Type" =#
                    ("application/x-amz-json-1.1" :: ByteString)])

instance ToPath ListBrokers where
        toPath = const "/v1/brokers"

instance ToQuery ListBrokers where
        toQuery ListBrokers'{..}
          = mconcat
              ["nextToken" =: _lbNextToken,
               "maxResults" =: _lbMaxResults]

-- | /See:/ 'listBrokersResponse' smart constructor.
data ListBrokersResponse = ListBrokersResponse'
  { _lbrsNextToken       :: !(Maybe Text)
  , _lbrsBrokerSummaries :: !(Maybe [BrokerSummary])
  , _lbrsResponseStatus  :: !Int
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'ListBrokersResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'lbrsNextToken' - The token that specifies the next page of results Amazon MQ should return. To request the first page, leave nextToken empty.
--
-- * 'lbrsBrokerSummaries' - A list of information about all brokers.
--
-- * 'lbrsResponseStatus' - -- | The response status code.
listBrokersResponse
    :: Int -- ^ 'lbrsResponseStatus'
    -> ListBrokersResponse
listBrokersResponse pResponseStatus_ =
  ListBrokersResponse'
    { _lbrsNextToken = Nothing
    , _lbrsBrokerSummaries = Nothing
    , _lbrsResponseStatus = pResponseStatus_
    }


-- | The token that specifies the next page of results Amazon MQ should return. To request the first page, leave nextToken empty.
lbrsNextToken :: Lens' ListBrokersResponse (Maybe Text)
lbrsNextToken = lens _lbrsNextToken (\ s a -> s{_lbrsNextToken = a})

-- | A list of information about all brokers.
lbrsBrokerSummaries :: Lens' ListBrokersResponse [BrokerSummary]
lbrsBrokerSummaries = lens _lbrsBrokerSummaries (\ s a -> s{_lbrsBrokerSummaries = a}) . _Default . _Coerce

-- | -- | The response status code.
lbrsResponseStatus :: Lens' ListBrokersResponse Int
lbrsResponseStatus = lens _lbrsResponseStatus (\ s a -> s{_lbrsResponseStatus = a})

instance NFData ListBrokersResponse where