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{-# LANGUAGE OverloadedStrings #-}
module Conf
( get
, Conf(..)
) where
import Data.Text (Text)
import qualified Data.Text as T
import qualified Data.ConfigManager as Conf
import Data.Time.Clock (NominalDiffTime)
data Conf = Conf
{ hostname :: Text
, port :: Int
, signInExpiration :: NominalDiffTime
, currency :: Text
, noReplyMail :: Text
, https :: Bool
} deriving Show
get :: FilePath -> IO Conf
get path = do
conf <-
(flip fmap) (Conf.readConfig path) (\configOrError -> do
conf <- configOrError
Conf <$>
Conf.lookup "hostname" conf <*>
Conf.lookup "port" conf <*>
Conf.lookup "signInExpiration" conf <*>
Conf.lookup "currency" conf <*>
Conf.lookup "noReplyMail" conf <*>
Conf.lookup "https" conf
)
case conf of
Left msg -> error (T.unpack msg)
Right c -> return c
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