From 4fc283da8edff660e1e7a3161745a8b2f11dc356 Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@jerkface.net>
Date: Thu, 21 Jun 2018 15:47:37 -0400
Subject: trivial refactor; ran autoformatter

---
 examples/dhtd.hs | 74 ++++++++++++++++++++++++++++++--------------------------
 1 file changed, 40 insertions(+), 34 deletions(-)

diff --git a/examples/dhtd.hs b/examples/dhtd.hs
index fe639af1..da93bed4 100644
--- a/examples/dhtd.hs
+++ b/examples/dhtd.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE BangPatterns              #-}
+{-# LANGUAGE ViewPatterns              #-}
 {-# LANGUAGE CPP                       #-}
 {-# LANGUAGE ExistentialQuantification #-}
 {-# LANGUAGE FlexibleContexts          #-}
@@ -1233,41 +1234,46 @@ netcrypto
   -> IO ()
 netcrypto _ _ h _ Nothing _ =  hPutClient h "Requires Tox enabled."
 netcrypto _ Nothing h _ _ _ =  hPutClient h "No key is selected, see k command."
-netcrypto dht (Just mypubkey) h roster (Just tox) keystr | Just DHT{..} <- dht = do
-                    let goParse = either
-                                         (\_ -> either (hPutClient h . ("Bad netcrypto target: "++))
-                                                 (goTarget . Left)
-                                                 (readEither keystr)) -- attempt read as NodeInfo type
-                                         (goTarget . Right  . Tox.id2key)
-                                         $ readEither keystr -- attempt read as NodeId type
-                    goParse
+netcrypto (Just (DHT {..})) (Just mypubkey) h roster (Just tox) keystr =
+    either
+      (const $
+       either
+         (hPutClient h . ("Bad netcrypto target: " ++))
+         goNodeInfo
+         (readEither keystr) -- attempt read as NodeInfo type
+       )
+      (goPubkey . Tox.id2key) $
+    readEither keystr -- attempt read as NodeId type
   where
-                        goTarget (Left userkey_nodeinfo) = do
-                            msec <- atomically $ do
-                                fmap userSecret . HashMap.lookup (Tox.key2id mypubkey) <$> readTVar (accounts roster)
-                            case msec of
-                                Nothing -> hPutClient h "Error getting secret key"
-                                Just sec -> do
-                                    let their_pub = Tox.id2key $ Tox.nodeId userkey_nodeinfo
-                                        their_addr = Tox.nodeAddr userkey_nodeinfo
-                                    let acsVar = accounts (Tox.toxContactInfo tox)
-                                    acsmap <- atomically $ readTVar acsVar
-                                    case HashMap.lookup (Tox.key2id mypubkey) acsmap of
-                                        Nothing -> hPutClient h "Unable to find account for selected key"
-                                        Just account -> do
-                                            now <- getPOSIXTime
-                                            atomically $ setContactAddr now their_pub their_addr account
-                                            Tox.netCrypto tox sec their_pub
-                                            hPutClient h "Handshake sent"
-                        goTarget (Right their_pub) = do
-                            msec <- atomically $ do
-                                ks <- map swap <$> myKeyPairs roster
-                                return $ Data.List.lookup mypubkey ks
-                            case msec of
-                                Nothing -> hPutClient h "Error getting secret key"
-                                Just sec -> do
-                                    Tox.netCrypto tox sec their_pub
-                                    hPutClient h "Handshake sent"
+    goNodeInfo userkey_nodeinfo = do
+      msec <-
+        atomically $ do
+          fmap userSecret . HashMap.lookup (Tox.key2id mypubkey) <$>
+            readTVar (accounts roster)
+      case msec of
+        Nothing -> hPutClient h "Error getting secret key"
+        Just sec -> do
+          let their_pub = Tox.id2key $ Tox.nodeId userkey_nodeinfo
+              their_addr = Tox.nodeAddr userkey_nodeinfo
+          let acsVar = accounts (Tox.toxContactInfo tox)
+          acsmap <- atomically $ readTVar acsVar
+          case HashMap.lookup (Tox.key2id mypubkey) acsmap of
+            Nothing -> hPutClient h "Unable to find account for selected key"
+            Just account -> do
+              now <- getPOSIXTime
+              atomically $ setContactAddr now their_pub their_addr account
+              Tox.netCrypto tox sec their_pub
+              hPutClient h "Handshake sent"
+    goPubkey their_pub = do
+      msec <-
+        atomically $ do
+          ks <- map swap <$> myKeyPairs roster
+          return $ Data.List.lookup mypubkey ks
+      case msec of
+        Nothing -> hPutClient h "Error getting secret key"
+        Just sec -> do
+          Tox.netCrypto tox sec their_pub
+          hPutClient h "Handshake sent"
 
 readExternals :: (ni -> SockAddr) -> [TVar (BucketList ni)] -> IO [SockAddr]
 readExternals nodeAddr vars = do
-- 
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