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|
{-# LANGUAGE OverloadedStrings #-}
module Conf
( parse
, Conf(..)
) where
import Data.Text (Text)
import qualified Data.Text as T
import qualified Data.ConfigManager as Conf
import Data.Time.Clock (NominalDiffTime)
import Model.URL
data Conf = Conf
{ urls :: [URL]
, mailFrom :: Text
, mailTo :: [Text]
, properties :: [Text]
, listenInterval :: NominalDiffTime
} deriving Show
parse :: FilePath -> IO Conf
parse path = do
conf <-
(flip fmap) (Conf.readConfig path) (\configOrError -> do
conf <- configOrError
Conf <$>
Conf.lookup "urls" conf <*>
Conf.lookup "mailFrom" conf <*>
Conf.lookup "mailTo" conf <*>
Conf.lookup "properties" conf <*>
Conf.lookup "listenInterval" conf
)
case conf of
Left msg -> error (T.unpack msg)
Right c -> return c
|
