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

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-rds-optiongroup.html

module Stratosphere.Resources.RDSOptionGroup 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.RDSOptionGroupOptionConfiguration
import Stratosphere.ResourceProperties.Tag

-- | Full data type definition for RDSOptionGroup. See 'rdsOptionGroup' for a
-- more convenient constructor.
data RDSOptionGroup =
  RDSOptionGroup
  { _rDSOptionGroupEngineName :: Val Text
  , _rDSOptionGroupMajorEngineVersion :: Val Text
  , _rDSOptionGroupOptionConfigurations :: [RDSOptionGroupOptionConfiguration]
  , _rDSOptionGroupOptionGroupDescription :: Val Text
  , _rDSOptionGroupTags :: Maybe [Tag]
  } deriving (Show, Eq)

instance ToJSON RDSOptionGroup where
  toJSON RDSOptionGroup{..} =
    object $
    catMaybes
    [ Just ("EngineName" .= _rDSOptionGroupEngineName)
    , Just ("MajorEngineVersion" .= _rDSOptionGroupMajorEngineVersion)
    , Just ("OptionConfigurations" .= _rDSOptionGroupOptionConfigurations)
    , Just ("OptionGroupDescription" .= _rDSOptionGroupOptionGroupDescription)
    , ("Tags" .=) <$> _rDSOptionGroupTags
    ]

instance FromJSON RDSOptionGroup where
  parseJSON (Object obj) =
    RDSOptionGroup <$>
      obj .: "EngineName" <*>
      obj .: "MajorEngineVersion" <*>
      obj .: "OptionConfigurations" <*>
      obj .: "OptionGroupDescription" <*>
      obj .:? "Tags"
  parseJSON _ = mempty

-- | Constructor for 'RDSOptionGroup' containing required fields as arguments.
rdsOptionGroup
  :: Val Text -- ^ 'rdsogEngineName'
  -> Val Text -- ^ 'rdsogMajorEngineVersion'
  -> [RDSOptionGroupOptionConfiguration] -- ^ 'rdsogOptionConfigurations'
  -> Val Text -- ^ 'rdsogOptionGroupDescription'
  -> RDSOptionGroup
rdsOptionGroup engineNamearg majorEngineVersionarg optionConfigurationsarg optionGroupDescriptionarg =
  RDSOptionGroup
  { _rDSOptionGroupEngineName = engineNamearg
  , _rDSOptionGroupMajorEngineVersion = majorEngineVersionarg
  , _rDSOptionGroupOptionConfigurations = optionConfigurationsarg
  , _rDSOptionGroupOptionGroupDescription = optionGroupDescriptionarg
  , _rDSOptionGroupTags = Nothing
  }

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-rds-optiongroup.html#cfn-rds-optiongroup-enginename
rdsogEngineName :: Lens' RDSOptionGroup (Val Text)
rdsogEngineName = lens _rDSOptionGroupEngineName (\s a -> s { _rDSOptionGroupEngineName = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-rds-optiongroup.html#cfn-rds-optiongroup-majorengineversion
rdsogMajorEngineVersion :: Lens' RDSOptionGroup (Val Text)
rdsogMajorEngineVersion = lens _rDSOptionGroupMajorEngineVersion (\s a -> s { _rDSOptionGroupMajorEngineVersion = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-rds-optiongroup.html#cfn-rds-optiongroup-optionconfigurations
rdsogOptionConfigurations :: Lens' RDSOptionGroup [RDSOptionGroupOptionConfiguration]
rdsogOptionConfigurations = lens _rDSOptionGroupOptionConfigurations (\s a -> s { _rDSOptionGroupOptionConfigurations = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-rds-optiongroup.html#cfn-rds-optiongroup-optiongroupdescription
rdsogOptionGroupDescription :: Lens' RDSOptionGroup (Val Text)
rdsogOptionGroupDescription = lens _rDSOptionGroupOptionGroupDescription (\s a -> s { _rDSOptionGroupOptionGroupDescription = a })

-- | http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-rds-optiongroup.html#cfn-rds-optiongroup-tags
rdsogTags :: Lens' RDSOptionGroup (Maybe [Tag])
rdsogTags = lens _rDSOptionGroupTags (\s a -> s { _rDSOptionGroupTags = a })