{-# 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.GetUsagePlanKeys
-- 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 all the usage plan keys representing the API keys added to a specified usage plan.
--
--
--
-- This operation returns paginated results.
module Network.AWS.APIGateway.GetUsagePlanKeys
    (
    -- * Creating a Request
      getUsagePlanKeys
    , GetUsagePlanKeys
    -- * Request Lenses
    , gupkNameQuery
    , gupkLimit
    , gupkPosition
    , gupkUsagePlanId

    -- * Destructuring the Response
    , getUsagePlanKeysResponse
    , GetUsagePlanKeysResponse
    -- * Response Lenses
    , gupkrsItems
    , gupkrsPosition
    , gupkrsResponseStatus
    ) 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

-- | The GET request to get all the usage plan keys representing the API keys added to a specified usage plan.
--
--
--
-- /See:/ 'getUsagePlanKeys' smart constructor.
data GetUsagePlanKeys = GetUsagePlanKeys'
  { _gupkNameQuery   :: !(Maybe Text)
  , _gupkLimit       :: !(Maybe Int)
  , _gupkPosition    :: !(Maybe Text)
  , _gupkUsagePlanId :: !Text
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'GetUsagePlanKeys' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'gupkNameQuery' - A query parameter specifying the name of the to-be-returned usage plan keys.
--
-- * 'gupkLimit' - The maximum number of returned results per page. The default value is 25 and the maximum value is 500.
--
-- * 'gupkPosition' - The current pagination position in the paged result set.
--
-- * 'gupkUsagePlanId' - [Required] The Id of the 'UsagePlan' resource representing the usage plan containing the to-be-retrieved 'UsagePlanKey' resource representing a plan customer.
getUsagePlanKeys
    :: Text -- ^ 'gupkUsagePlanId'
    -> GetUsagePlanKeys
getUsagePlanKeys pUsagePlanId_ =
  GetUsagePlanKeys'
    { _gupkNameQuery = Nothing
    , _gupkLimit = Nothing
    , _gupkPosition = Nothing
    , _gupkUsagePlanId = pUsagePlanId_
    }


-- | A query parameter specifying the name of the to-be-returned usage plan keys.
gupkNameQuery :: Lens' GetUsagePlanKeys (Maybe Text)
gupkNameQuery = lens _gupkNameQuery (\ s a -> s{_gupkNameQuery = a})

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

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

-- | [Required] The Id of the 'UsagePlan' resource representing the usage plan containing the to-be-retrieved 'UsagePlanKey' resource representing a plan customer.
gupkUsagePlanId :: Lens' GetUsagePlanKeys Text
gupkUsagePlanId = lens _gupkUsagePlanId (\ s a -> s{_gupkUsagePlanId = a})

instance AWSPager GetUsagePlanKeys where
        page rq rs
          | stop (rs ^. gupkrsPosition) = Nothing
          | stop (rs ^. gupkrsItems) = Nothing
          | otherwise =
            Just $ rq & gupkPosition .~ rs ^. gupkrsPosition

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

instance Hashable GetUsagePlanKeys where

instance NFData GetUsagePlanKeys where

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

instance ToPath GetUsagePlanKeys where
        toPath GetUsagePlanKeys'{..}
          = mconcat
              ["/usageplans/", toBS _gupkUsagePlanId, "/keys"]

instance ToQuery GetUsagePlanKeys where
        toQuery GetUsagePlanKeys'{..}
          = mconcat
              ["name" =: _gupkNameQuery, "limit" =: _gupkLimit,
               "position" =: _gupkPosition]

-- | Represents the collection of usage plan keys added to usage plans for the associated API keys and, possibly, other types of keys.
--
--
-- <http://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-api-usage-plans.html Create and Use Usage Plans>
--
-- /See:/ 'getUsagePlanKeysResponse' smart constructor.
data GetUsagePlanKeysResponse = GetUsagePlanKeysResponse'
  { _gupkrsItems          :: !(Maybe [UsagePlanKey])
  , _gupkrsPosition       :: !(Maybe Text)
  , _gupkrsResponseStatus :: !Int
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'GetUsagePlanKeysResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'gupkrsItems' - The current page of elements from this collection.
--
-- * 'gupkrsPosition' - Undocumented member.
--
-- * 'gupkrsResponseStatus' - -- | The response status code.
getUsagePlanKeysResponse
    :: Int -- ^ 'gupkrsResponseStatus'
    -> GetUsagePlanKeysResponse
getUsagePlanKeysResponse pResponseStatus_ =
  GetUsagePlanKeysResponse'
    { _gupkrsItems = Nothing
    , _gupkrsPosition = Nothing
    , _gupkrsResponseStatus = pResponseStatus_
    }


-- | The current page of elements from this collection.
gupkrsItems :: Lens' GetUsagePlanKeysResponse [UsagePlanKey]
gupkrsItems = lens _gupkrsItems (\ s a -> s{_gupkrsItems = a}) . _Default . _Coerce

-- | Undocumented member.
gupkrsPosition :: Lens' GetUsagePlanKeysResponse (Maybe Text)
gupkrsPosition = lens _gupkrsPosition (\ s a -> s{_gupkrsPosition = a})

-- | -- | The response status code.
gupkrsResponseStatus :: Lens' GetUsagePlanKeysResponse Int
gupkrsResponseStatus = lens _gupkrsResponseStatus (\ s a -> s{_gupkrsResponseStatus = a})

instance NFData GetUsagePlanKeysResponse where