aboutsummaryrefslogtreecommitdiff
path: root/src/server/Config.hs
blob: f4144f782c7560f0acd159f9abfa6406d94570d7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
{-# LANGUAGE FlexibleContexts #-}

module Config
  ( getConfig
  , Config(..)
  ) where

import Data.ConfigFile
import Data.Text (Text)
import qualified Data.Text as T

import Control.Monad.Trans.Error (runErrorT)
import Control.Monad.IO.Class (liftIO)
import Control.Monad (join)
import Control.Arrow (left)
import Control.Applicative (liftA2)

data Config = Config
  { hostname :: Text
  , port :: Int
  } deriving (Read, Eq, Show)

getConfig :: FilePath -> IO (Either String Config)
getConfig filePath =
  left show <$> (runErrorT $ do
    cp <- join $ liftIO $ readfile emptyCP filePath
    liftA2
      Config
      (T.pack <$> get cp "DEFAULT" "hostname")
      (get cp "DEFAULT" "port")
  )