{-# 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.LexModels.GetIntents
-- Copyright   : (c) 2013-2017 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 intent information as follows:
--
--
--     * If you specify the @nameContains@ field, returns the @> LATEST@ version of all intents that contain the specified string.
--
--     * If you don't specify the @nameContains@ field, returns information about the @> LATEST@ version of all intents.
--
--
--
-- The operation requires permission for the @lex:GetIntents@ action.
--
module Network.AWS.LexModels.GetIntents
    (
    -- * Creating a Request
      getIntents
    , GetIntents
    -- * Request Lenses
    , giNameContains
    , giNextToken
    , giMaxResults

    -- * Destructuring the Response
    , getIntentsResponse
    , GetIntentsResponse
    -- * Response Lenses
    , gisrsIntents
    , gisrsNextToken
    , gisrsResponseStatus
    ) where

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

-- | /See:/ 'getIntents' smart constructor.
data GetIntents = GetIntents'
  { _giNameContains :: !(Maybe Text)
  , _giNextToken    :: !(Maybe Text)
  , _giMaxResults   :: !(Maybe Nat)
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'GetIntents' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'giNameContains' - Substring to match in intent names. An intent will be returned if any part of its name matches the substring. For example, "xyz" matches both "xyzabc" and "abcxyz."
--
-- * 'giNextToken' - A pagination token that fetches the next page of intents. If the response to this API call is truncated, Amazon Lex returns a pagination token in the response. To fetch the next page of intents, specify the pagination token in the next request.
--
-- * 'giMaxResults' - The maximum number of intents to return in the response. The default is 10.
getIntents
    :: GetIntents
getIntents =
  GetIntents'
  {_giNameContains = Nothing, _giNextToken = Nothing, _giMaxResults = Nothing}


-- | Substring to match in intent names. An intent will be returned if any part of its name matches the substring. For example, "xyz" matches both "xyzabc" and "abcxyz."
giNameContains :: Lens' GetIntents (Maybe Text)
giNameContains = lens _giNameContains (\ s a -> s{_giNameContains = a});

-- | A pagination token that fetches the next page of intents. If the response to this API call is truncated, Amazon Lex returns a pagination token in the response. To fetch the next page of intents, specify the pagination token in the next request.
giNextToken :: Lens' GetIntents (Maybe Text)
giNextToken = lens _giNextToken (\ s a -> s{_giNextToken = a});

-- | The maximum number of intents to return in the response. The default is 10.
giMaxResults :: Lens' GetIntents (Maybe Natural)
giMaxResults = lens _giMaxResults (\ s a -> s{_giMaxResults = a}) . mapping _Nat;

instance AWSRequest GetIntents where
        type Rs GetIntents = GetIntentsResponse
        request = get lexModels
        response
          = receiveJSON
              (\ s h x ->
                 GetIntentsResponse' <$>
                   (x .?> "intents" .!@ mempty) <*> (x .?> "nextToken")
                     <*> (pure (fromEnum s)))

instance Hashable GetIntents where

instance NFData GetIntents where

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

instance ToPath GetIntents where
        toPath = const "/intents/"

instance ToQuery GetIntents where
        toQuery GetIntents'{..}
          = mconcat
              ["nameContains" =: _giNameContains,
               "nextToken" =: _giNextToken,
               "maxResults" =: _giMaxResults]

-- | /See:/ 'getIntentsResponse' smart constructor.
data GetIntentsResponse = GetIntentsResponse'
  { _gisrsIntents        :: !(Maybe [IntentMetadata])
  , _gisrsNextToken      :: !(Maybe Text)
  , _gisrsResponseStatus :: !Int
  } deriving (Eq, Read, Show, Data, Typeable, Generic)


-- | Creates a value of 'GetIntentsResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'gisrsIntents' - An array of @Intent@ objects. For more information, see 'PutBot' .
--
-- * 'gisrsNextToken' - If the response is truncated, the response includes a pagination token that you can specify in your next request to fetch the next page of intents.
--
-- * 'gisrsResponseStatus' - -- | The response status code.
getIntentsResponse
    :: Int -- ^ 'gisrsResponseStatus'
    -> GetIntentsResponse
getIntentsResponse pResponseStatus_ =
  GetIntentsResponse'
  { _gisrsIntents = Nothing
  , _gisrsNextToken = Nothing
  , _gisrsResponseStatus = pResponseStatus_
  }


-- | An array of @Intent@ objects. For more information, see 'PutBot' .
gisrsIntents :: Lens' GetIntentsResponse [IntentMetadata]
gisrsIntents = lens _gisrsIntents (\ s a -> s{_gisrsIntents = a}) . _Default . _Coerce;

-- | If the response is truncated, the response includes a pagination token that you can specify in your next request to fetch the next page of intents.
gisrsNextToken :: Lens' GetIntentsResponse (Maybe Text)
gisrsNextToken = lens _gisrsNextToken (\ s a -> s{_gisrsNextToken = a});

-- | -- | The response status code.
gisrsResponseStatus :: Lens' GetIntentsResponse Int
gisrsResponseStatus = lens _gisrsResponseStatus (\ s a -> s{_gisrsResponseStatus = a});

instance NFData GetIntentsResponse where