{-# 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.SWF.DescribeActivityType
-- 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)
--
-- Returns information about the specified activity type. This includes configuration settings provided when the type was registered and other general information about the type.
--
--
-- __Access Control__
--
-- You can use IAM policies to control this action's access to Amazon SWF resources as follows:
--
--     * Use a @Resource@ element with the domain name to limit the action to only specified domains.    * Use an @Action@ element to allow or deny permission to call this action.    * Constrain the following parameters by using a @Condition@ element with the appropriate keys.     * @activityType.name@ : String constraint. The key is @swf:activityType.name@ .    * @activityType.version@ : String constraint. The key is @swf:activityType.version@ .
--
--
--
-- If the caller does not have sufficient permissions to invoke the action, or the parameter values fall outside the specified constraints, the action fails. The associated event attribute's __cause__ parameter will be set to OPERATION_NOT_PERMITTED. For details and example IAM policies, see <http://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-dev-iam.html Using IAM to Manage Access to Amazon SWF Workflows> .
--
module Network.AWS.SWF.DescribeActivityType
    (
    -- * Creating a Request
      describeActivityType
    , DescribeActivityType
    -- * Request Lenses
    , datDomain
    , datActivityType

    -- * Destructuring the Response
    , describeActivityTypeResponse
    , DescribeActivityTypeResponse
    -- * Response Lenses
    , datrsResponseStatus
    , datrsTypeInfo
    , datrsConfiguration
    ) where

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

-- | /See:/ 'describeActivityType' smart constructor.
data DescribeActivityType = DescribeActivityType'
    { _datDomain       :: !Text
    , _datActivityType :: !ActivityType
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeActivityType' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'datDomain' - The name of the domain in which the activity type is registered.
--
-- * 'datActivityType' - The activity type to get information about. Activity types are identified by the @name@ and @version@ that were supplied when the activity was registered.
describeActivityType
    :: Text -- ^ 'datDomain'
    -> ActivityType -- ^ 'datActivityType'
    -> DescribeActivityType
describeActivityType pDomain_ pActivityType_ =
    DescribeActivityType'
    { _datDomain = pDomain_
    , _datActivityType = pActivityType_
    }

-- | The name of the domain in which the activity type is registered.
datDomain :: Lens' DescribeActivityType Text
datDomain = lens _datDomain (\ s a -> s{_datDomain = a});

-- | The activity type to get information about. Activity types are identified by the @name@ and @version@ that were supplied when the activity was registered.
datActivityType :: Lens' DescribeActivityType ActivityType
datActivityType = lens _datActivityType (\ s a -> s{_datActivityType = a});

instance AWSRequest DescribeActivityType where
        type Rs DescribeActivityType =
             DescribeActivityTypeResponse
        request = postJSON swf
        response
          = receiveJSON
              (\ s h x ->
                 DescribeActivityTypeResponse' <$>
                   (pure (fromEnum s)) <*> (x .:> "typeInfo") <*>
                     (x .:> "configuration"))

instance Hashable DescribeActivityType

instance NFData DescribeActivityType

instance ToHeaders DescribeActivityType where
        toHeaders
          = const
              (mconcat
                 ["X-Amz-Target" =#
                    ("SimpleWorkflowService.DescribeActivityType" ::
                       ByteString),
                  "Content-Type" =#
                    ("application/x-amz-json-1.0" :: ByteString)])

instance ToJSON DescribeActivityType where
        toJSON DescribeActivityType'{..}
          = object
              (catMaybes
                 [Just ("domain" .= _datDomain),
                  Just ("activityType" .= _datActivityType)])

instance ToPath DescribeActivityType where
        toPath = const "/"

instance ToQuery DescribeActivityType where
        toQuery = const mempty

-- | Detailed information about an activity type.
--
--
--
-- /See:/ 'describeActivityTypeResponse' smart constructor.
data DescribeActivityTypeResponse = DescribeActivityTypeResponse'
    { _datrsResponseStatus :: !Int
    , _datrsTypeInfo       :: !ActivityTypeInfo
    , _datrsConfiguration  :: !ActivityTypeConfiguration
    } deriving (Eq,Read,Show,Data,Typeable,Generic)

-- | Creates a value of 'DescribeActivityTypeResponse' with the minimum fields required to make a request.
--
-- Use one of the following lenses to modify other fields as desired:
--
-- * 'datrsResponseStatus' - -- | The response status code.
--
-- * 'datrsTypeInfo' - General information about the activity type. The status of activity type (returned in the ActivityTypeInfo structure) can be one of the following.     * __REGISTERED__ : The type is registered and available. Workers supporting this type should be running.     * __DEPRECATED__ : The type was deprecated using 'DeprecateActivityType' , but is still in use. You should keep workers supporting this type running. You cannot create new tasks of this type.
--
-- * 'datrsConfiguration' - The configuration settings registered with the activity type.
describeActivityTypeResponse
    :: Int -- ^ 'datrsResponseStatus'
    -> ActivityTypeInfo -- ^ 'datrsTypeInfo'
    -> ActivityTypeConfiguration -- ^ 'datrsConfiguration'
    -> DescribeActivityTypeResponse
describeActivityTypeResponse pResponseStatus_ pTypeInfo_ pConfiguration_ =
    DescribeActivityTypeResponse'
    { _datrsResponseStatus = pResponseStatus_
    , _datrsTypeInfo = pTypeInfo_
    , _datrsConfiguration = pConfiguration_
    }

-- | -- | The response status code.
datrsResponseStatus :: Lens' DescribeActivityTypeResponse Int
datrsResponseStatus = lens _datrsResponseStatus (\ s a -> s{_datrsResponseStatus = a});

-- | General information about the activity type. The status of activity type (returned in the ActivityTypeInfo structure) can be one of the following.     * __REGISTERED__ : The type is registered and available. Workers supporting this type should be running.     * __DEPRECATED__ : The type was deprecated using 'DeprecateActivityType' , but is still in use. You should keep workers supporting this type running. You cannot create new tasks of this type.
datrsTypeInfo :: Lens' DescribeActivityTypeResponse ActivityTypeInfo
datrsTypeInfo = lens _datrsTypeInfo (\ s a -> s{_datrsTypeInfo = a});

-- | The configuration settings registered with the activity type.
datrsConfiguration :: Lens' DescribeActivityTypeResponse ActivityTypeConfiguration
datrsConfiguration = lens _datrsConfiguration (\ s a -> s{_datrsConfiguration = a});

instance NFData DescribeActivityTypeResponse