{-# 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.Lambda.CreateAlias
-- 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)
--
-- Creates an alias that points to the specified Lambda function version.
-- For more information, see
-- <http://docs.aws.amazon.com/lambda/latest/dg/aliases-intro.html Introduction to AWS Lambda Aliases>.
--
-- Alias names are unique for a given function.
--
-- This requires permission for the lambda:CreateAlias action.
module Network.AWS.Lambda.CreateAlias
    (
    -- * Creating a Request
      createAlias
    , CreateAlias
    -- * Request Lenses
    , caDescription
    , caFunctionName
    , caName
    , caFunctionVersion

    -- * Destructuring the Response
    , aliasConfiguration
    , AliasConfiguration
    -- * Response Lenses
    , acName
    , acFunctionVersion
    , acAliasARN
    , acDescription
    ) where

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

-- | /See:/ 'createAlias' smart constructor.
data CreateAlias = CreateAlias'
    { _caDescription     :: !(Maybe Text)
    , _caFunctionName    :: !Text
    , _caName            :: !Text
    , _caFunctionVersion :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'CreateAlias' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'caDescription'
--
-- * 'caFunctionName'
--
-- * 'caName'
--
-- * 'caFunctionVersion'
createAlias
    :: Text -- ^ 'caFunctionName'
    -> Text -- ^ 'caName'
    -> Text -- ^ 'caFunctionVersion'
    -> CreateAlias
createAlias pFunctionName_ pName_ pFunctionVersion_ =
    CreateAlias'
    { _caDescription = Nothing
    , _caFunctionName = pFunctionName_
    , _caName = pName_
    , _caFunctionVersion = pFunctionVersion_
    }

-- | Description of the alias.
caDescription :: Lens' CreateAlias (Maybe Text)
caDescription = lens _caDescription (\ s a -> s{_caDescription = a});

-- | Name of the Lambda function for which you want to create an alias.
caFunctionName :: Lens' CreateAlias Text
caFunctionName = lens _caFunctionName (\ s a -> s{_caFunctionName = a});

-- | Name for the alias you are creating.
caName :: Lens' CreateAlias Text
caName = lens _caName (\ s a -> s{_caName = a});

-- | Lambda function version for which you are creating the alias.
caFunctionVersion :: Lens' CreateAlias Text
caFunctionVersion = lens _caFunctionVersion (\ s a -> s{_caFunctionVersion = a});

instance AWSRequest CreateAlias where
        type Rs CreateAlias = AliasConfiguration
        request = postJSON lambda
        response = receiveJSON (\ s h x -> eitherParseJSON x)

instance Hashable CreateAlias

instance NFData CreateAlias

instance ToHeaders CreateAlias where
        toHeaders = const mempty

instance ToJSON CreateAlias where
        toJSON CreateAlias'{..}
          = object
              (catMaybes
                 [("Description" .=) <$> _caDescription,
                  Just ("Name" .= _caName),
                  Just ("FunctionVersion" .= _caFunctionVersion)])

instance ToPath CreateAlias where
        toPath CreateAlias'{..}
          = mconcat
              ["/2015-03-31/functions/", toBS _caFunctionName,
               "/aliases"]

instance ToQuery CreateAlias where
        toQuery = const mempty