module Blockchain.Data.Peer (
  Peer(..)
  ) where

import Data.ByteString.Internal
import Data.Word

import Blockchain.Format
import Blockchain.Data.RLP

--import Debug.Trace



--instance Show Block where
--  show x = "<BLOCK>"



data IPAddr = IPAddr Word8 Word8 Word8 Word8 deriving (Show)

instance Format IPAddr where
  format (IPAddr v1 v2 v3 v4) = show v1 ++ "." ++ show v2 ++ "." ++ show v3 ++ "." ++ show v4 

data Peer = Peer {
  ipAddr::IPAddr,
  peerPort::Word16,
  uniqueId::String
  } deriving (Show)

instance Format Peer where
  format peer = format (ipAddr peer) ++ ":" ++ show (peerPort peer)

instance RLPSerializable Peer where
  rlpDecode (RLPArray [RLPString [c1,c2,c3,c4], port, RLPString uid]) =
    Peer {
      ipAddr = IPAddr (c2w c1) (c2w c2) (c2w c3) (c2w c4),
      peerPort = fromInteger $ rlpDecode port,
      uniqueId = uid
      }
  rlpDecode x = error ("rlp2Peer called on non block object: " ++ show x)

  rlpEncode = error "rlpEncode undefined for Peer"