Message.hs

{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DataKinds     #-}
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-- |
-- Module : Database.EventStore.Internal.Operation.DeleteStream.Message
-- Copyright : (C) 2015 Yorick Laupa
-- License : (see the file LICENSE)
--
-- Maintainer : Yorick Laupa <yo.eight@gmail.com>
-- Stability : provisional
-- Portability : non-portable
--
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module Database.EventStore.Internal.Operation.DeleteStream.Message where

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import Data.Int

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import Data.ProtocolBuffers

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import Database.EventStore.Internal.Operation
import Database.EventStore.Internal.Prelude

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-- | Delete stream request.
data Request
    = Request
      { _streamId        :: Required 1 (Value Text)
      , _expectedVersion :: Required 2 (Value Int32)
      , _requireMaster   :: Required 3 (Value Bool)
      , _hardDelete      :: Optional 4 (Value Bool)
      }
    deriving (Generic, Show)

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instance Encode Request

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-- | 'Request' smart constructor.
newRequest :: Text -> Int32 -> Bool -> Maybe Bool -> Request
newRequest stream_id exp_ver req_master hard_delete =
    Request
    { _streamId        = putField stream_id
    , _expectedVersion = putField exp_ver
    , _requireMaster   = putField req_master
    , _hardDelete      = putField hard_delete
    }

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-- | Delete stream response.
data Response
    = Response
      { _result          :: Required 1 (Enumeration OpResult)
      , _message         :: Optional 2 (Value Text)
      , _preparePosition :: Optional 3 (Value Int64)
      , _commitPosition  :: Optional 4 (Value Int64)
      }
    deriving (Generic, Show)

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instance Decode Response