From 24df9a12a9240aaed8741d60e4b0b9cbf59a9fd9 Mon Sep 17 00:00:00 2001
From: joe <joe@jerkface.net>
Date: Mon, 5 Jun 2017 03:21:25 -0400
Subject: WIP: Adapting DHT to Tox network (part 2).

---
 src/Network/BitTorrent/DHT/Message.hs | 29 +++++++++++++++++++++--------
 1 file changed, 21 insertions(+), 8 deletions(-)

(limited to 'src/Network/BitTorrent/DHT/Message.hs')

diff --git a/src/Network/BitTorrent/DHT/Message.hs b/src/Network/BitTorrent/DHT/Message.hs
index 44dc9b2f..0e2bfdd9 100644
--- a/src/Network/BitTorrent/DHT/Message.hs
+++ b/src/Network/BitTorrent/DHT/Message.hs
@@ -61,6 +61,7 @@
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE UndecidableInstances  #-}
 {-# LANGUAGE ScopedTypeVariables   #-}
+{-# LANGUAGE TypeFamilies #-}
 module Network.BitTorrent.DHT.Message
        ( -- * Envelopes
          Query (..)
@@ -217,6 +218,9 @@ instance Serialize (Response Ping) where
 -- | \"q\" = \"ping\"
 instance KRPC (Query Ping) (Response Ping) where
 #ifdef VERSION_bencoding
+  type Envelope (Query Ping) (Response Ping) = BValue
+  seal = toBEncode
+  unseal = fromBEncode
   method = "ping"
 #else
   method = Method Tox.Ping -- response: Tox.Pong
@@ -229,9 +233,9 @@ instance KRPC (Query Ping) (Response Ping) where
 -- | Find node is used to find the contact information for a node
 -- given its ID.
 #ifdef VERSION_bencoding
-newtype FindNode = FindNode NodeId
+newtype FindNode ip = FindNode NodeId
 #else
-data FindNode = FindNode NodeId Tox.Nonce8 -- Tox: Get Nodes
+data FindNode ip = FindNode NodeId Tox.Nonce8 -- Tox: Get Nodes
 #endif
   deriving (Show, Eq, Typeable)
 
@@ -239,11 +243,11 @@ target_key :: BKey
 target_key = "target"
 
 #ifdef VERSION_bencoding
-instance BEncode FindNode where
+instance Typeable ip => BEncode (FindNode ip) where
   toBEncode (FindNode nid) = toDict   $ target_key .=! nid .: endDict
   fromBEncode              = fromDict $ FindNode  <$>! target_key
 #else
-instance Serialize (Query FindNode) where
+instance Serialize (Query (FindNode ip)) where
     get = do
         nid <- get
         nonce <- get
@@ -304,8 +308,11 @@ instance Serialize (Response (NodeFound ip)) where
 
 -- | \"q\" == \"find_node\"
 instance (Address ip, Typeable ip)
-      => KRPC (Query FindNode) (Response (NodeFound ip)) where
+      => KRPC (Query (FindNode ip)) (Response (NodeFound ip)) where
 #ifdef VERSION_bencoding
+  type Envelope (Query (FindNode ip)) (Response (NodeFound ip)) = BValue
+  seal = toBEncode
+  unseal = fromBEncode
   method = "find_node"
 #else
   method = Method Tox.GetNodes -- response: Tox.SendNodes
@@ -317,13 +324,13 @@ instance (Address ip, Typeable ip)
 -----------------------------------------------------------------------}
 
 -- | Get peers associated with a torrent infohash.
-newtype GetPeers = GetPeers InfoHash
+newtype GetPeers ip = GetPeers InfoHash
   deriving (Show, Eq, Typeable)
 
 info_hash_key :: BKey
 info_hash_key = "info_hash"
 
-instance BEncode GetPeers where
+instance Typeable ip => BEncode (GetPeers ip) where
   toBEncode (GetPeers ih) = toDict   $ info_hash_key .=! ih .: endDict
   fromBEncode             = fromDict $ GetPeers <$>! info_hash_key
 
@@ -373,7 +380,10 @@ instance (Typeable ip, Serialize ip) => BEncode (GotPeers ip) where
 
 -- | \"q" = \"get_peers\"
 instance (Typeable ip, Serialize ip) =>
-         KRPC (Query GetPeers) (Response (GotPeers ip)) where
+         KRPC (Query (GetPeers ip)) (Response (GotPeers ip)) where
+  type Envelope (Query (GetPeers ip)) (Response (GotPeers ip)) = BValue
+  seal = toBEncode
+  unseal = fromBEncode
   method = "get_peers"
 
 {-----------------------------------------------------------------------
@@ -446,6 +456,9 @@ instance BEncode Announced where
 
 -- | \"q" = \"announce\"
 instance KRPC (Query Announce) (Response Announced) where
+  type Envelope (Query Announce) (Response Announced) = BValue
+  seal = toBEncode
+  unseal = fromBEncode
   method = "announce_peer"
 
 -- endif VERSION_bencoding
-- 
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