From 4b3e7340e1cf573abaf64febaa87db1c0d824149 Mon Sep 17 00:00:00 2001
From: Ben Sima <ben@bsima.me>
Date: Sat, 18 Apr 2020 18:47:56 -0700
Subject: Fallback to default config on startup

---
 Que/Server.hs | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

(limited to 'Que/Server.hs')

diff --git a/Que/Server.hs b/Que/Server.hs
index 2b4e9f6..8eda6fb 100644
--- a/Que/Server.hs
+++ b/Que/Server.hs
@@ -1,6 +1,5 @@
 {-# LANGUAGE DeriveGeneric #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
-{-# LANGUAGE LambdaCase #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE NoImplicitPrelude #-}
 
@@ -54,20 +53,19 @@ import Network.Wai.Middleware.RequestLogger
   ( logStdout,
   )
 import qualified System.Envy as Envy
-import qualified System.Exit as Exit
 import qualified Web.Scotty.Trans as Scotty
 
 main :: IO ()
 main = Exception.bracket startup shutdown <| uncurry Warp.run
   where
-    startup = Envy.decodeEnv >>= \case
-      Left e -> Exit.die e
-      Right c -> do
-        sync <- STM.newTVarIO initialAppState
-        let runActionToIO m = runReaderT (runApp m) sync
-        waiapp <- Scotty.scottyAppT runActionToIO routes
-        putText <| "port:" <> (show <| quePort c)
-        return (quePort c, waiapp)
+    startup = Envy.decodeWithDefaults Envy.defConfig >>= \c -> do
+      sync <- STM.newTVarIO initialAppState
+      let runActionToIO m = runReaderT (runApp m) sync
+      waiapp <- Scotty.scottyAppT runActionToIO routes
+      putText "*"
+      putText "que-server"
+      putText <| "port: " <> (show <| quePort c)
+      return (quePort c, waiapp)
     shutdown :: a -> IO a
     shutdown = pure . identity
 
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