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

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

module Stratosphere.ResourceProperties.ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration 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.ApplicationAutoScalingScalingPolicyCustomizedMetricSpecification
import Stratosphere.ResourceProperties.ApplicationAutoScalingScalingPolicyPredefinedMetricSpecification

-- | Full data type definition for
-- ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration.
-- See
-- 'applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration'
-- for a more convenient constructor.
data ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration =
  ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration
  { _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationCustomizedMetricSpecification :: Maybe ApplicationAutoScalingScalingPolicyCustomizedMetricSpecification
  , _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationPredefinedMetricSpecification :: Maybe ApplicationAutoScalingScalingPolicyPredefinedMetricSpecification
  , _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationScaleInCooldown :: Maybe (Val Integer')
  , _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationScaleOutCooldown :: Maybe (Val Integer')
  , _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationTargetValue :: Val Double'
  } deriving (Show, Eq)

instance ToJSON ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration where
  toJSON ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration{..} =
    object $
    catMaybes
    [ ("CustomizedMetricSpecification" .=) <$> _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationCustomizedMetricSpecification
    , ("PredefinedMetricSpecification" .=) <$> _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationPredefinedMetricSpecification
    , ("ScaleInCooldown" .=) <$> _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationScaleInCooldown
    , ("ScaleOutCooldown" .=) <$> _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationScaleOutCooldown
    , Just ("TargetValue" .= _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationTargetValue)
    ]

instance FromJSON ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration where
  parseJSON (Object obj) =
    ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration <$>
      obj .:? "CustomizedMetricSpecification" <*>
      obj .:? "PredefinedMetricSpecification" <*>
      obj .:? "ScaleInCooldown" <*>
      obj .:? "ScaleOutCooldown" <*>
      obj .: "TargetValue"
  parseJSON _ = mempty

-- | Constructor for
-- 'ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration'
-- containing required fields as arguments.
applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration
  :: Val Double' -- ^ 'aasspttspcTargetValue'
  -> ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration
applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration targetValuearg =
  ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration
  { _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationCustomizedMetricSpecification = Nothing
  , _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationPredefinedMetricSpecification = Nothing
  , _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationScaleInCooldown = Nothing
  , _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationScaleOutCooldown = Nothing
  , _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationTargetValue = targetValuearg
  }

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration.html#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-customizedmetricspecification
aasspttspcCustomizedMetricSpecification :: Lens' ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration (Maybe ApplicationAutoScalingScalingPolicyCustomizedMetricSpecification)
aasspttspcCustomizedMetricSpecification = lens _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationCustomizedMetricSpecification (\s a -> s { _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationCustomizedMetricSpecification = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration.html#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-predefinedmetricspecification
aasspttspcPredefinedMetricSpecification :: Lens' ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration (Maybe ApplicationAutoScalingScalingPolicyPredefinedMetricSpecification)
aasspttspcPredefinedMetricSpecification = lens _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationPredefinedMetricSpecification (\s a -> s { _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationPredefinedMetricSpecification = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration.html#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-scaleincooldown
aasspttspcScaleInCooldown :: Lens' ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration (Maybe (Val Integer'))
aasspttspcScaleInCooldown = lens _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationScaleInCooldown (\s a -> s { _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationScaleInCooldown = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration.html#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-scaleoutcooldown
aasspttspcScaleOutCooldown :: Lens' ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration (Maybe (Val Integer'))
aasspttspcScaleOutCooldown = lens _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationScaleOutCooldown (\s a -> s { _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationScaleOutCooldown = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration.html#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-targetvalue
aasspttspcTargetValue :: Lens' ApplicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfiguration (Val Double')
aasspttspcTargetValue = lens _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationTargetValue (\s a -> s { _applicationAutoScalingScalingPolicyTargetTrackingScalingPolicyConfigurationTargetValue = a })