{-# 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.CognitoIdentity.ListIdentityPools
-- Copyright   : (c) 2013-2015 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 all of the Cognito identity pools registered for your account.
--
-- This is a public API. You do not need any credentials to call this API.
--
-- /See:/ <http://docs.aws.amazon.com/cognitoidentity/latest/APIReference/API_ListIdentityPools.html AWS API Reference> for ListIdentityPools.
module Network.AWS.CognitoIdentity.ListIdentityPools
    (
    -- * Creating a Request
      listIdentityPools
    , ListIdentityPools
    -- * Request Lenses
    , lipNextToken
    , lipMaxResults

    -- * Destructuring the Response
    , listIdentityPoolsResponse
    , ListIdentityPoolsResponse
    -- * Response Lenses
    , liprsIdentityPools
    , liprsNextToken
    , liprsStatus
    ) where

import           Network.AWS.CognitoIdentity.Types
import           Network.AWS.CognitoIdentity.Types.Product
import           Network.AWS.Prelude
import           Network.AWS.Request
import           Network.AWS.Response

-- | Input to the ListIdentityPools action.
--
-- /See:/ 'listIdentityPools' smart constructor.
data ListIdentityPools = ListIdentityPools'
    { _lipNextToken  :: !(Maybe Text)
    , _lipMaxResults :: !Nat
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListIdentityPools' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'lipNextToken'
--
-- * 'lipMaxResults'
listIdentityPools
    :: Natural -- ^ 'lipMaxResults'
    -> ListIdentityPools
listIdentityPools pMaxResults_ =
    ListIdentityPools'
    { _lipNextToken = Nothing
    , _lipMaxResults = _Nat # pMaxResults_
    }

-- | A pagination token.
lipNextToken :: Lens' ListIdentityPools (Maybe Text)
lipNextToken = lens _lipNextToken (\ s a -> s{_lipNextToken = a});

-- | The maximum number of identities to return.
lipMaxResults :: Lens' ListIdentityPools Natural
lipMaxResults = lens _lipMaxResults (\ s a -> s{_lipMaxResults = a}) . _Nat;

instance AWSRequest ListIdentityPools where
        type Rs ListIdentityPools = ListIdentityPoolsResponse
        request = postJSON cognitoIdentity
        response
          = receiveJSON
              (\ s h x ->
                 ListIdentityPoolsResponse' <$>
                   (x .?> "IdentityPools" .!@ mempty) <*>
                     (x .?> "NextToken")
                     <*> (pure (fromEnum s)))

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

instance ToJSON ListIdentityPools where
        toJSON ListIdentityPools'{..}
          = object
              (catMaybes
                 [("NextToken" .=) <$> _lipNextToken,
                  Just ("MaxResults" .= _lipMaxResults)])

instance ToPath ListIdentityPools where
        toPath = const "/"

instance ToQuery ListIdentityPools where
        toQuery = const mempty

-- | The result of a successful ListIdentityPools action.
--
-- /See:/ 'listIdentityPoolsResponse' smart constructor.
data ListIdentityPoolsResponse = ListIdentityPoolsResponse'
    { _liprsIdentityPools :: !(Maybe [IdentityPoolShortDescription])
    , _liprsNextToken     :: !(Maybe Text)
    , _liprsStatus        :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'ListIdentityPoolsResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'liprsIdentityPools'
--
-- * 'liprsNextToken'
--
-- * 'liprsStatus'
listIdentityPoolsResponse
    :: Int -- ^ 'liprsStatus'
    -> ListIdentityPoolsResponse
listIdentityPoolsResponse pStatus_ =
    ListIdentityPoolsResponse'
    { _liprsIdentityPools = Nothing
    , _liprsNextToken = Nothing
    , _liprsStatus = pStatus_
    }

-- | The identity pools returned by the ListIdentityPools action.
liprsIdentityPools :: Lens' ListIdentityPoolsResponse [IdentityPoolShortDescription]
liprsIdentityPools = lens _liprsIdentityPools (\ s a -> s{_liprsIdentityPools = a}) . _Default . _Coerce;

-- | A pagination token.
liprsNextToken :: Lens' ListIdentityPoolsResponse (Maybe Text)
liprsNextToken = lens _liprsNextToken (\ s a -> s{_liprsNextToken = a});

-- | The response status code.
liprsStatus :: Lens' ListIdentityPoolsResponse Int
liprsStatus = lens _liprsStatus (\ s a -> s{_liprsStatus = a});