{-# 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.APIGateway.GetAPIKeys
-- 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)
--
-- Gets information about the current 'ApiKeys' resource.
--
--
--
-- This operation returns paginated results.
module Network.AWS.APIGateway.GetAPIKeys
    (
    -- * Creating a Request
      getAPIKeys
    , GetAPIKeys
    -- * Request Lenses
    , gakIncludeValues
    , gakCustomerId
    , gakNameQuery
    , gakLimit
    , gakPosition

    -- * Destructuring the Response
    , getAPIKeysResponse
    , GetAPIKeysResponse
    -- * Response Lenses
    , gakrsItems
    , gakrsWarnings
    , gakrsPosition
    , gakrsResponseStatus
    ) where

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

-- | A request to get information about the current 'ApiKeys' resource.
--
--
--
-- /See:/ 'getAPIKeys' smart constructor.
data GetAPIKeys = GetAPIKeys'
  { _gakIncludeValues :: !(Maybe Bool)
  , _gakCustomerId    :: !(Maybe Text)
  , _gakNameQuery     :: !(Maybe Text)
  , _gakLimit         :: !(Maybe Int)
  , _gakPosition      :: !(Maybe Text)
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'GetAPIKeys' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'gakIncludeValues' - A boolean flag to specify whether (@true@ ) or not (@false@ ) the result contains key values.
--
-- * 'gakCustomerId' - The identifier of a customer in AWS Marketplace or an external system, such as a developer portal.
--
-- * 'gakNameQuery' - The name of queried API keys.
--
-- * 'gakLimit' - The maximum number of returned results per page. The default value is 25 and the maximum value is 500.
--
-- * 'gakPosition' - The current pagination position in the paged result set.
getAPIKeys
    :: GetAPIKeys
getAPIKeys =
  GetAPIKeys'
    { _gakIncludeValues = Nothing
    , _gakCustomerId = Nothing
    , _gakNameQuery = Nothing
    , _gakLimit = Nothing
    , _gakPosition = Nothing
    }


-- | A boolean flag to specify whether (@true@ ) or not (@false@ ) the result contains key values.
gakIncludeValues :: Lens' GetAPIKeys (Maybe Bool)
gakIncludeValues = lens _gakIncludeValues (\ s a -> s{_gakIncludeValues = a})

-- | The identifier of a customer in AWS Marketplace or an external system, such as a developer portal.
gakCustomerId :: Lens' GetAPIKeys (Maybe Text)
gakCustomerId = lens _gakCustomerId (\ s a -> s{_gakCustomerId = a})

-- | The name of queried API keys.
gakNameQuery :: Lens' GetAPIKeys (Maybe Text)
gakNameQuery = lens _gakNameQuery (\ s a -> s{_gakNameQuery = a})

-- | The maximum number of returned results per page. The default value is 25 and the maximum value is 500.
gakLimit :: Lens' GetAPIKeys (Maybe Int)
gakLimit = lens _gakLimit (\ s a -> s{_gakLimit = a})

-- | The current pagination position in the paged result set.
gakPosition :: Lens' GetAPIKeys (Maybe Text)
gakPosition = lens _gakPosition (\ s a -> s{_gakPosition = a})

instance AWSPager GetAPIKeys where
        page rq rs
          | stop (rs ^. gakrsPosition) = Nothing
          | stop (rs ^. gakrsItems) = Nothing
          | otherwise =
            Just $ rq & gakPosition .~ rs ^. gakrsPosition

instance AWSRequest GetAPIKeys where
        type Rs GetAPIKeys = GetAPIKeysResponse
        request = get apiGateway
        response
          = receiveJSON
              (\ s h x ->
                 GetAPIKeysResponse' <$>
                   (x .?> "item" .!@ mempty) <*>
                     (x .?> "warnings" .!@ mempty)
                     <*> (x .?> "position")
                     <*> (pure (fromEnum s)))

instance Hashable GetAPIKeys where

instance NFData GetAPIKeys where

instance ToHeaders GetAPIKeys where
        toHeaders
          = const
              (mconcat
                 ["Accept" =# ("application/json" :: ByteString)])

instance ToPath GetAPIKeys where
        toPath = const "/apikeys"

instance ToQuery GetAPIKeys where
        toQuery GetAPIKeys'{..}
          = mconcat
              ["includeValues" =: _gakIncludeValues,
               "customerId" =: _gakCustomerId,
               "name" =: _gakNameQuery, "limit" =: _gakLimit,
               "position" =: _gakPosition]

-- | Represents a collection of API keys as represented by an 'ApiKeys' resource.
--
--
-- <http://docs.aws.amazon.com/apigateway/latest/developerguide/how-to-api-keys.html Use API Keys>
--
-- /See:/ 'getAPIKeysResponse' smart constructor.
data GetAPIKeysResponse = GetAPIKeysResponse'
  { _gakrsItems          :: !(Maybe [APIKey])
  , _gakrsWarnings       :: !(Maybe [Text])
  , _gakrsPosition       :: !(Maybe Text)
  , _gakrsResponseStatus :: !Int
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'GetAPIKeysResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'gakrsItems' - The current page of elements from this collection.
--
-- * 'gakrsWarnings' - A list of warning messages logged during the import of API keys when the @failOnWarnings@ option is set to true.
--
-- * 'gakrsPosition' - Undocumented member.
--
-- * 'gakrsResponseStatus' - -- | The response status code.
getAPIKeysResponse
    :: Int -- ^ 'gakrsResponseStatus'
    -> GetAPIKeysResponse
getAPIKeysResponse pResponseStatus_ =
  GetAPIKeysResponse'
    { _gakrsItems = Nothing
    , _gakrsWarnings = Nothing
    , _gakrsPosition = Nothing
    , _gakrsResponseStatus = pResponseStatus_
    }


-- | The current page of elements from this collection.
gakrsItems :: Lens' GetAPIKeysResponse [APIKey]
gakrsItems = lens _gakrsItems (\ s a -> s{_gakrsItems = a}) . _Default . _Coerce

-- | A list of warning messages logged during the import of API keys when the @failOnWarnings@ option is set to true.
gakrsWarnings :: Lens' GetAPIKeysResponse [Text]
gakrsWarnings = lens _gakrsWarnings (\ s a -> s{_gakrsWarnings = a}) . _Default . _Coerce

-- | Undocumented member.
gakrsPosition :: Lens' GetAPIKeysResponse (Maybe Text)
gakrsPosition = lens _gakrsPosition (\ s a -> s{_gakrsPosition = a})

-- | -- | The response status code.
gakrsResponseStatus :: Lens' GetAPIKeysResponse Int
gakrsResponseStatus = lens _gakrsResponseStatus (\ s a -> s{_gakrsResponseStatus = a})

instance NFData GetAPIKeysResponse where