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

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalingpolicy.html

module Stratosphere.Resources.ApplicationAutoScalingScalingPolicy where

import Control.Lens hiding ((.=))
import Data.Aeson
import Data.Maybe (catMaybes)
import Data.Monoid (mempty)
import Data.Text

import Stratosphere.Values
import Stratosphere.ResourceProperties.ApplicationAutoScalingScalingPolicyStepScalingPolicyConfiguration

-- | Full data type definition for ApplicationAutoScalingScalingPolicy. See
-- 'applicationAutoScalingScalingPolicy' for a more convenient constructor.
data ApplicationAutoScalingScalingPolicy =
  ApplicationAutoScalingScalingPolicy
  { _applicationAutoScalingScalingPolicyPolicyName :: Val Text
  , _applicationAutoScalingScalingPolicyPolicyType :: Val Text
  , _applicationAutoScalingScalingPolicyResourceId :: Maybe (Val Text)
  , _applicationAutoScalingScalingPolicyScalableDimension :: Maybe (Val Text)
  , _applicationAutoScalingScalingPolicyScalingTargetId :: Maybe (Val Text)
  , _applicationAutoScalingScalingPolicyServiceNamespace :: Maybe (Val Text)
  , _applicationAutoScalingScalingPolicyStepScalingPolicyConfiguration :: Maybe ApplicationAutoScalingScalingPolicyStepScalingPolicyConfiguration
  } deriving (Show, Eq)

instance ToJSON ApplicationAutoScalingScalingPolicy where
  toJSON ApplicationAutoScalingScalingPolicy{..} =
    object $
    catMaybes
    [ Just ("PolicyName" .= _applicationAutoScalingScalingPolicyPolicyName)
    , Just ("PolicyType" .= _applicationAutoScalingScalingPolicyPolicyType)
    , ("ResourceId" .=) <$> _applicationAutoScalingScalingPolicyResourceId
    , ("ScalableDimension" .=) <$> _applicationAutoScalingScalingPolicyScalableDimension
    , ("ScalingTargetId" .=) <$> _applicationAutoScalingScalingPolicyScalingTargetId
    , ("ServiceNamespace" .=) <$> _applicationAutoScalingScalingPolicyServiceNamespace
    , ("StepScalingPolicyConfiguration" .=) <$> _applicationAutoScalingScalingPolicyStepScalingPolicyConfiguration
    ]

instance FromJSON ApplicationAutoScalingScalingPolicy where
  parseJSON (Object obj) =
    ApplicationAutoScalingScalingPolicy <$>
      obj .: "PolicyName" <*>
      obj .: "PolicyType" <*>
      obj .:? "ResourceId" <*>
      obj .:? "ScalableDimension" <*>
      obj .:? "ScalingTargetId" <*>
      obj .:? "ServiceNamespace" <*>
      obj .:? "StepScalingPolicyConfiguration"
  parseJSON _ = mempty

-- | Constructor for 'ApplicationAutoScalingScalingPolicy' containing required
-- fields as arguments.
applicationAutoScalingScalingPolicy
  :: Val Text -- ^ 'aasspPolicyName'
  -> Val Text -- ^ 'aasspPolicyType'
  -> ApplicationAutoScalingScalingPolicy
applicationAutoScalingScalingPolicy policyNamearg policyTypearg =
  ApplicationAutoScalingScalingPolicy
  { _applicationAutoScalingScalingPolicyPolicyName = policyNamearg
  , _applicationAutoScalingScalingPolicyPolicyType = policyTypearg
  , _applicationAutoScalingScalingPolicyResourceId = Nothing
  , _applicationAutoScalingScalingPolicyScalableDimension = Nothing
  , _applicationAutoScalingScalingPolicyScalingTargetId = Nothing
  , _applicationAutoScalingScalingPolicyServiceNamespace = Nothing
  , _applicationAutoScalingScalingPolicyStepScalingPolicyConfiguration = Nothing
  }

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalingpolicy.html#cfn-applicationautoscaling-scalingpolicy-policyname
aasspPolicyName :: Lens' ApplicationAutoScalingScalingPolicy (Val Text)
aasspPolicyName = lens _applicationAutoScalingScalingPolicyPolicyName (\s a -> s { _applicationAutoScalingScalingPolicyPolicyName = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalingpolicy.html#cfn-applicationautoscaling-scalingpolicy-policytype
aasspPolicyType :: Lens' ApplicationAutoScalingScalingPolicy (Val Text)
aasspPolicyType = lens _applicationAutoScalingScalingPolicyPolicyType (\s a -> s { _applicationAutoScalingScalingPolicyPolicyType = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalingpolicy.html#cfn-applicationautoscaling-scalingpolicy-resourceid
aasspResourceId :: Lens' ApplicationAutoScalingScalingPolicy (Maybe (Val Text))
aasspResourceId = lens _applicationAutoScalingScalingPolicyResourceId (\s a -> s { _applicationAutoScalingScalingPolicyResourceId = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalingpolicy.html#cfn-applicationautoscaling-scalingpolicy-scalabledimension
aasspScalableDimension :: Lens' ApplicationAutoScalingScalingPolicy (Maybe (Val Text))
aasspScalableDimension = lens _applicationAutoScalingScalingPolicyScalableDimension (\s a -> s { _applicationAutoScalingScalingPolicyScalableDimension = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalingpolicy.html#cfn-applicationautoscaling-scalingpolicy-scalingtargetid
aasspScalingTargetId :: Lens' ApplicationAutoScalingScalingPolicy (Maybe (Val Text))
aasspScalingTargetId = lens _applicationAutoScalingScalingPolicyScalingTargetId (\s a -> s { _applicationAutoScalingScalingPolicyScalingTargetId = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalingpolicy.html#cfn-applicationautoscaling-scalingpolicy-servicenamespace
aasspServiceNamespace :: Lens' ApplicationAutoScalingScalingPolicy (Maybe (Val Text))
aasspServiceNamespace = lens _applicationAutoScalingScalingPolicyServiceNamespace (\s a -> s { _applicationAutoScalingScalingPolicyServiceNamespace = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalingpolicy.html#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration
aasspStepScalingPolicyConfiguration :: Lens' ApplicationAutoScalingScalingPolicy (Maybe ApplicationAutoScalingScalingPolicyStepScalingPolicyConfiguration)
aasspStepScalingPolicyConfiguration = lens _applicationAutoScalingScalingPolicyStepScalingPolicyConfiguration (\s a -> s { _applicationAutoScalingScalingPolicyStepScalingPolicyConfiguration = a })