{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DataKinds     #-}
module Database.EventStore.Internal.Operation.Identify ( newIdentifyPkg ) where
import Data.ProtocolBuffers
import Data.Serialize (runPut)
import Database.EventStore.Internal.Command
import Database.EventStore.Internal.Prelude
import Database.EventStore.Internal.Types
data Request =
  Request { _version :: Required 1 (Value Int32)
          , _name    :: Optional 2 (Value Text)
          } deriving (Generic, Show)
newRequest :: Int32 -> Text -> Request
newRequest ver name =
  Request { _version = putField ver
          , _name    = putField $ Just name
          }
newIdentifyPkg :: MonadBase IO m => Int32 -> Text -> m Package
newIdentifyPkg version name = do
  uuid <- newUUID
  let msg = newRequest version name
      pkg = Package { packageCmd         = identifyClientCmd
                    , packageCorrelation = uuid
                    , packageData        = runPut $ encodeMessage msg
                    , packageCred        = Nothing
                    }
  pure pkg
instance Encode Request