{-# LANGUAGE DataKinds                   #-}
{-# LANGUAGE DeriveGeneric               #-}
{-# LANGUAGE FlexibleInstances           #-}
{-# LANGUAGE GeneralizedNewtypeDeriving  #-}
{-# LANGUAGE LambdaCase                  #-}
{-# LANGUAGE NoImplicitPrelude           #-}
{-# LANGUAGE OverloadedStrings           #-}
{-# LANGUAGE RecordWildCards             #-}
{-# LANGUAGE TypeFamilies                #-}

{-# OPTIONS_GHC -fno-warn-unused-imports #-}

-- Module      : Network.AWS.CodeDeploy.GetDeploymentGroup
-- Copyright   : (c) 2013-2014 Brendan Hay <brendan.g.hay@gmail.com>
-- License     : This Source Code Form is subject to the terms of
--               the Mozilla Public License, v. 2.0.
--               A copy of the MPL can be found in the LICENSE file or
--               you can obtain it at http://mozilla.org/MPL/2.0/.
-- Maintainer  : Brendan Hay <brendan.g.hay@gmail.com>
-- Stability   : experimental
-- Portability : non-portable (GHC extensions)
--
-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- | Gets information about a deployment group.
--
-- <http://docs.aws.amazon.com/codedeploy/latest/APIReference/API_GetDeploymentGroup.html>
module Network.AWS.CodeDeploy.GetDeploymentGroup
    (
    -- * Request
      GetDeploymentGroup
    -- ** Request constructor
    , getDeploymentGroup
    -- ** Request lenses
    , gdgApplicationName
    , gdgDeploymentGroupName

    -- * Response
    , GetDeploymentGroupResponse
    -- ** Response constructor
    , getDeploymentGroupResponse
    -- ** Response lenses
    , gdgrDeploymentGroupInfo
    ) where

import Network.AWS.Prelude
import Network.AWS.Request.JSON
import Network.AWS.CodeDeploy.Types
import qualified GHC.Exts

data GetDeploymentGroup = GetDeploymentGroup
    { _gdgApplicationName     :: Text
    , _gdgDeploymentGroupName :: Text
    } deriving (Eq, Ord, Show)

-- | 'GetDeploymentGroup' constructor.
--
-- The fields accessible through corresponding lenses are:
--
-- * 'gdgApplicationName' @::@ 'Text'
--
-- * 'gdgDeploymentGroupName' @::@ 'Text'
--
getDeploymentGroup :: Text -- ^ 'gdgApplicationName'
                   -> Text -- ^ 'gdgDeploymentGroupName'
                   -> GetDeploymentGroup
getDeploymentGroup p1 p2 = GetDeploymentGroup
    { _gdgApplicationName     = p1
    , _gdgDeploymentGroupName = p2
    }

-- | The name of an existing AWS CodeDeploy application within the AWS user
-- account.
gdgApplicationName :: Lens' GetDeploymentGroup Text
gdgApplicationName =
    lens _gdgApplicationName (\s a -> s { _gdgApplicationName = a })

-- | The name of an existing deployment group for the specified application.
gdgDeploymentGroupName :: Lens' GetDeploymentGroup Text
gdgDeploymentGroupName =
    lens _gdgDeploymentGroupName (\s a -> s { _gdgDeploymentGroupName = a })

newtype GetDeploymentGroupResponse = GetDeploymentGroupResponse
    { _gdgrDeploymentGroupInfo :: Maybe DeploymentGroupInfo
    } deriving (Eq, Show)

-- | 'GetDeploymentGroupResponse' constructor.
--
-- The fields accessible through corresponding lenses are:
--
-- * 'gdgrDeploymentGroupInfo' @::@ 'Maybe' 'DeploymentGroupInfo'
--
getDeploymentGroupResponse :: GetDeploymentGroupResponse
getDeploymentGroupResponse = GetDeploymentGroupResponse
    { _gdgrDeploymentGroupInfo = Nothing
    }

-- | Information about the deployment group.
gdgrDeploymentGroupInfo :: Lens' GetDeploymentGroupResponse (Maybe DeploymentGroupInfo)
gdgrDeploymentGroupInfo =
    lens _gdgrDeploymentGroupInfo (\s a -> s { _gdgrDeploymentGroupInfo = a })

instance ToPath GetDeploymentGroup where
    toPath = const "/"

instance ToQuery GetDeploymentGroup where
    toQuery = const mempty

instance ToHeaders GetDeploymentGroup

instance ToJSON GetDeploymentGroup where
    toJSON GetDeploymentGroup{..} = object
        [ "applicationName"     .= _gdgApplicationName
        , "deploymentGroupName" .= _gdgDeploymentGroupName
        ]

instance AWSRequest GetDeploymentGroup where
    type Sv GetDeploymentGroup = CodeDeploy
    type Rs GetDeploymentGroup = GetDeploymentGroupResponse

    request  = post "GetDeploymentGroup"
    response = jsonResponse

instance FromJSON GetDeploymentGroupResponse where
    parseJSON = withObject "GetDeploymentGroupResponse" $ \o -> GetDeploymentGroupResponse
        <$> o .:? "deploymentGroupInfo"