{-# 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.GetStages
-- 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 one or more 'Stage' resources.
--
--
module Network.AWS.APIGateway.GetStages
    (
    -- * Creating a Request
      getStages
    , GetStages
    -- * Request Lenses
    , gsDeploymentId
    , gsRestAPIId

    -- * Destructuring the Response
    , getStagesResponse
    , GetStagesResponse
    -- * Response Lenses
    , gsrsItem
    , gsrsResponseStatus
    ) where

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

-- | Requests API Gateway to get information about one or more 'Stage' resources.
--
--
--
-- /See:/ 'getStages' smart constructor.
data GetStages = GetStages'
  { _gsDeploymentId :: !(Maybe Text)
  , _gsRestAPIId    :: !Text
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'GetStages' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'gsDeploymentId' - The stages' deployment identifiers.
--
-- * 'gsRestAPIId' - [Required] The string identifier of the associated 'RestApi' .
getStages
    :: Text -- ^ 'gsRestAPIId'
    -> GetStages
getStages pRestAPIId_ =
  GetStages' {_gsDeploymentId = Nothing, _gsRestAPIId = pRestAPIId_}


-- | The stages' deployment identifiers.
gsDeploymentId :: Lens' GetStages (Maybe Text)
gsDeploymentId = lens _gsDeploymentId (\ s a -> s{_gsDeploymentId = a})

-- | [Required] The string identifier of the associated 'RestApi' .
gsRestAPIId :: Lens' GetStages Text
gsRestAPIId = lens _gsRestAPIId (\ s a -> s{_gsRestAPIId = a})

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

instance Hashable GetStages where

instance NFData GetStages where

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

instance ToPath GetStages where
        toPath GetStages'{..}
          = mconcat
              ["/restapis/", toBS _gsRestAPIId, "/stages"]

instance ToQuery GetStages where
        toQuery GetStages'{..}
          = mconcat ["deploymentId" =: _gsDeploymentId]

-- | A list of 'Stage' resources that are associated with the 'ApiKey' resource.
--
--
-- <http://docs.aws.amazon.com/apigateway/latest/developerguide/stages.html Deploying API in Stages>
--
-- /See:/ 'getStagesResponse' smart constructor.
data GetStagesResponse = GetStagesResponse'
  { _gsrsItem           :: !(Maybe [Stage])
  , _gsrsResponseStatus :: !Int
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'GetStagesResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'gsrsItem' - The current page of elements from this collection.
--
-- * 'gsrsResponseStatus' - -- | The response status code.
getStagesResponse
    :: Int -- ^ 'gsrsResponseStatus'
    -> GetStagesResponse
getStagesResponse pResponseStatus_ =
  GetStagesResponse'
    {_gsrsItem = Nothing, _gsrsResponseStatus = pResponseStatus_}


-- | The current page of elements from this collection.
gsrsItem :: Lens' GetStagesResponse [Stage]
gsrsItem = lens _gsrsItem (\ s a -> s{_gsrsItem = a}) . _Default . _Coerce

-- | -- | The response status code.
gsrsResponseStatus :: Lens' GetStagesResponse Int
gsrsResponseStatus = lens _gsrsResponseStatus (\ s a -> s{_gsrsResponseStatus = a})

instance NFData GetStagesResponse where