{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverloadedLabels #-}
{-# LANGUAGE StrictData #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE TypeFamilies #-}

module Octane.Type.CacheProperty
  ( CacheProperty(..)
  ) where

import Data.Function ((&))

import qualified Control.DeepSeq as DeepSeq
import qualified Data.Binary as Binary
import qualified Data.Default.Class as Default
import qualified Data.OverloadedRecords.TH as OverloadedRecords
import qualified GHC.Generics as Generics
import qualified Octane.Type.Word32 as Word32

-- | A property on an item in the class net cache map.
data CacheProperty = CacheProperty
  { cachePropertyObjectId :: Word32.Word32
    -- ^ The object's ID.
  , cachePropertyStreamId :: Word32.Word32
    -- ^ The object's ID in the network stream.
  } deriving (Eq, Generics.Generic, Show)

$(OverloadedRecords.overloadedRecord Default.def ''CacheProperty)

-- | Fields are stored one after the other in order.
instance Binary.Binary CacheProperty where
  get = CacheProperty <$> Binary.get <*> Binary.get
  put cacheProperty = do
    cacheProperty & #objectId & Binary.put
    cacheProperty & #streamId & Binary.put

instance DeepSeq.NFData CacheProperty