{-# 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.RemovePermission
-- 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)
--
-- You can remove individual permissions from an resource policy associated
-- with a Lambda function by providing a statement ID that you provided
-- when you added the permission.
--
-- If you are using versioning, the permissions you remove are specific to
-- the Lambda function version or alias you specify in the 'AddPermission'
-- request via the 'Qualifier' parameter. For more information about
-- versioning, see
-- <http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html AWS Lambda Function Versioning and Aliases>.
--
-- Note that removal of a permission will cause an active event source to
-- lose permission to the function.
--
-- You need permission for the 'lambda:RemovePermission' action.
module Network.AWS.Lambda.RemovePermission
    (
    -- * Creating a Request
      removePermission
    , RemovePermission
    -- * Request Lenses
    , rpQualifier
    , rpFunctionName
    , rpStatementId

    -- * Destructuring the Response
    , removePermissionResponse
    , RemovePermissionResponse
    ) 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:/ 'removePermission' smart constructor.
data RemovePermission = RemovePermission'
    { _rpQualifier    :: !(Maybe Text)
    , _rpFunctionName :: !Text
    , _rpStatementId  :: !Text
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'RemovePermission' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'rpQualifier'
--
-- * 'rpFunctionName'
--
-- * 'rpStatementId'
removePermission
    :: Text -- ^ 'rpFunctionName'
    -> Text -- ^ 'rpStatementId'
    -> RemovePermission
removePermission pFunctionName_ pStatementId_ =
    RemovePermission'
    { _rpQualifier = Nothing
    , _rpFunctionName = pFunctionName_
    , _rpStatementId = pStatementId_
    }

-- | You can specify this optional parameter to remove permission associated
-- with a specific function version or function alias. If you don\'t
-- specify this parameter, the API removes permission associated with the
-- unqualified function ARN.
rpQualifier :: Lens' RemovePermission (Maybe Text)
rpQualifier = lens _rpQualifier (\ s a -> s{_rpQualifier = a});

-- | Lambda function whose resource policy you want to remove a permission
-- from.
--
-- You can specify a function name (for example, 'Thumbnail') or you can
-- specify Amazon Resource Name (ARN) of the function (for example,
-- 'arn:aws:lambda:us-west-2:account-id:function:ThumbNail'). AWS Lambda
-- also allows you to specify a partial ARN (for example,
-- 'account-id:Thumbnail'). Note that the length constraint applies only to
-- the ARN. If you specify only the function name, it is limited to 64
-- character in length.
rpFunctionName :: Lens' RemovePermission Text
rpFunctionName = lens _rpFunctionName (\ s a -> s{_rpFunctionName = a});

-- | Statement ID of the permission to remove.
rpStatementId :: Lens' RemovePermission Text
rpStatementId = lens _rpStatementId (\ s a -> s{_rpStatementId = a});

instance AWSRequest RemovePermission where
        type Rs RemovePermission = RemovePermissionResponse
        request = delete lambda
        response = receiveNull RemovePermissionResponse'

instance Hashable RemovePermission

instance NFData RemovePermission

instance ToHeaders RemovePermission where
        toHeaders = const mempty

instance ToPath RemovePermission where
        toPath RemovePermission'{..}
          = mconcat
              ["/2015-03-31/functions/", toBS _rpFunctionName,
               "/policy/", toBS _rpStatementId]

instance ToQuery RemovePermission where
        toQuery RemovePermission'{..}
          = mconcat ["Qualifier" =: _rpQualifier]

-- | /See:/ 'removePermissionResponse' smart constructor.
data RemovePermissionResponse =
    RemovePermissionResponse'
    deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'RemovePermissionResponse' with the minimum fields required to make a request.
--
removePermissionResponse
    :: RemovePermissionResponse
removePermissionResponse = RemovePermissionResponse'

instance NFData RemovePermissionResponse