{-# 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.CloudWatchEvents.TestEventPattern
-- Copyright   : (c) 2013-2016 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)
--
-- Tests whether an event pattern matches the provided event.
--
-- __Note:__ Most services in AWS treat : or \/ as the same character in
-- Amazon Resource Names (ARNs). However, CloudWatch Events uses an exact
-- match in event patterns and rules. Be sure to use the correct ARN
-- characters when creating event patterns so that they match the ARN
-- syntax in the event you want to match.
module Network.AWS.CloudWatchEvents.TestEventPattern
    (
    -- * Creating a Request
      testEventPattern
    , TestEventPattern
    -- * Request Lenses
    , tepEventPattern
    , tepEvent

    -- * Destructuring the Response
    , testEventPatternResponse
    , TestEventPatternResponse
    -- * Response Lenses
    , teprsResult
    , teprsResponseStatus
    ) where

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

-- | Container for the parameters to the < TestEventPattern> operation.
--
-- /See:/ 'testEventPattern' smart constructor.
data TestEventPattern = TestEventPattern'
    { _tepEventPattern :: !Text
    , _tepEvent        :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'TestEventPattern' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'tepEventPattern'
--
-- * 'tepEvent'
testEventPattern
    :: Text -- ^ 'tepEventPattern'
    -> Text -- ^ 'tepEvent'
    -> TestEventPattern
testEventPattern pEventPattern_ pEvent_ =
    TestEventPattern'
    { _tepEventPattern = pEventPattern_
    , _tepEvent = pEvent_
    }

-- | The event pattern you want to test.
tepEventPattern :: Lens' TestEventPattern Text
tepEventPattern = lens _tepEventPattern (\ s a -> s{_tepEventPattern = a});

-- | The event in the JSON format to test against the event pattern.
tepEvent :: Lens' TestEventPattern Text
tepEvent = lens _tepEvent (\ s a -> s{_tepEvent = a});

instance AWSRequest TestEventPattern where
        type Rs TestEventPattern = TestEventPatternResponse
        request = postJSON cloudWatchEvents
        response
          = receiveJSON
              (\ s h x ->
                 TestEventPatternResponse' <$>
                   (x .?> "Result") <*> (pure (fromEnum s)))

instance Hashable TestEventPattern

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

instance ToJSON TestEventPattern where
        toJSON TestEventPattern'{..}
          = object
              (catMaybes
                 [Just ("EventPattern" .= _tepEventPattern),
                  Just ("Event" .= _tepEvent)])

instance ToPath TestEventPattern where
        toPath = const "/"

instance ToQuery TestEventPattern where
        toQuery = const mempty

-- | The result of the < TestEventPattern> operation.
--
-- /See:/ 'testEventPatternResponse' smart constructor.
data TestEventPatternResponse = TestEventPatternResponse'
    { _teprsResult         :: !(Maybe Bool)
    , _teprsResponseStatus :: !Int
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'TestEventPatternResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'teprsResult'
--
-- * 'teprsResponseStatus'
testEventPatternResponse
    :: Int -- ^ 'teprsResponseStatus'
    -> TestEventPatternResponse
testEventPatternResponse pResponseStatus_ =
    TestEventPatternResponse'
    { _teprsResult = Nothing
    , _teprsResponseStatus = pResponseStatus_
    }

-- | Indicates whether the event matches the event pattern.
teprsResult :: Lens' TestEventPatternResponse (Maybe Bool)
teprsResult = lens _teprsResult (\ s a -> s{_teprsResult = a});

-- | The response status code.
teprsResponseStatus :: Lens' TestEventPatternResponse Int
teprsResponseStatus = lens _teprsResponseStatus (\ s a -> s{_teprsResponseStatus = a});