{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE TupleSections #-}

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-stack.html

module Stratosphere.Resources.CloudFormationStack where

import Stratosphere.ResourceImports
import Stratosphere.ResourceProperties.Tag

-- | Full data type definition for CloudFormationStack. See
-- 'cloudFormationStack' for a more convenient constructor.
data CloudFormationStack =
  CloudFormationStack
  { _cloudFormationStackNotificationARNs :: Maybe (ValList Text)
  , _cloudFormationStackParameters :: Maybe Object
  , _cloudFormationStackTags :: Maybe [Tag]
  , _cloudFormationStackTemplateURL :: Val Text
  , _cloudFormationStackTimeoutInMinutes :: Maybe (Val Integer)
  } deriving (Show, Eq)

instance ToJSON CloudFormationStack where
  toJSON CloudFormationStack{..} =
    object $
    catMaybes
    [ fmap (("NotificationARNs",) . toJSON) _cloudFormationStackNotificationARNs
    , fmap (("Parameters",) . toJSON) _cloudFormationStackParameters
    , fmap (("Tags",) . toJSON) _cloudFormationStackTags
    , (Just . ("TemplateURL",) . toJSON) _cloudFormationStackTemplateURL
    , fmap (("TimeoutInMinutes",) . toJSON . fmap Integer') _cloudFormationStackTimeoutInMinutes
    ]

instance FromJSON CloudFormationStack where
  parseJSON (Object obj) =
    CloudFormationStack <$>
      (obj .:? "NotificationARNs") <*>
      (obj .:? "Parameters") <*>
      (obj .:? "Tags") <*>
      (obj .: "TemplateURL") <*>
      fmap (fmap (fmap unInteger')) (obj .:? "TimeoutInMinutes")
  parseJSON _ = mempty

-- | Constructor for 'CloudFormationStack' containing required fields as
-- arguments.
cloudFormationStack
  :: Val Text -- ^ 'cfsTemplateURL'
  -> CloudFormationStack
cloudFormationStack templateURLarg =
  CloudFormationStack
  { _cloudFormationStackNotificationARNs = Nothing
  , _cloudFormationStackParameters = Nothing
  , _cloudFormationStackTags = Nothing
  , _cloudFormationStackTemplateURL = templateURLarg
  , _cloudFormationStackTimeoutInMinutes = Nothing
  }

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-stack.html#cfn-cloudformation-stack-notificationarns
cfsNotificationARNs :: Lens' CloudFormationStack (Maybe (ValList Text))
cfsNotificationARNs = lens _cloudFormationStackNotificationARNs (\s a -> s { _cloudFormationStackNotificationARNs = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-stack.html#cfn-cloudformation-stack-parameters
cfsParameters :: Lens' CloudFormationStack (Maybe Object)
cfsParameters = lens _cloudFormationStackParameters (\s a -> s { _cloudFormationStackParameters = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-stack.html#cfn-cloudformation-stack-tags
cfsTags :: Lens' CloudFormationStack (Maybe [Tag])
cfsTags = lens _cloudFormationStackTags (\s a -> s { _cloudFormationStackTags = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-stack.html#cfn-cloudformation-stack-templateurl
cfsTemplateURL :: Lens' CloudFormationStack (Val Text)
cfsTemplateURL = lens _cloudFormationStackTemplateURL (\s a -> s { _cloudFormationStackTemplateURL = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-stack.html#cfn-cloudformation-stack-timeoutinminutes
cfsTimeoutInMinutes :: Lens' CloudFormationStack (Maybe (Val Integer))
cfsTimeoutInMinutes = lens _cloudFormationStackTimeoutInMinutes (\s a -> s { _cloudFormationStackTimeoutInMinutes = a })