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module Conf
  ( parse
  , Conf(..)
  ) where

import qualified Control.Logging    as Logging
import qualified Data.ConfigManager as Conf
import           Data.Text          (Text)
import qualified Data.Text          as T
import           Data.Time.Clock    (DiffTime)

import           Model.URL

data Conf = Conf
  { leboncoinUrls       :: [URL]
  , ouestFranceUrls     :: [URL]
  , seLogerUrls         :: [URL]
  , mailFrom            :: Text
  , mailTo              :: [Text]
  , mailMock            :: Bool
  , listenFrom          :: DiffTime
  , listenTo            :: DiffTime
  , listenInterval      :: DiffTime
  , listenIntervalNoise :: DiffTime
  , logLevel            :: Logging.LogLevel
  } deriving Show

parse :: FilePath -> IO Conf
parse path = do
  conf <-
    (flip fmap) (Conf.readConfig path) (\configOrError -> do
      conf <- configOrError
      Conf <$>
        Conf.lookup "leboncoinUrls" conf <*>
        Conf.lookup "ouestFranceUrls" conf <*>
        Conf.lookup "seLogerUrls" conf <*>
        Conf.lookup "mailFrom" conf <*>
        Conf.lookup "mailTo" conf <*>
        Conf.lookup "mailMock" conf <*>
        Conf.lookup "listenFrom" conf <*>
        Conf.lookup "listenTo" conf <*>
        Conf.lookup "listenInterval" conf <*>
        Conf.lookup "listenIntervalNoise" conf <*>
        Conf.lookup "logLevel" conf
    )
  case conf of
    Left msg -> error (T.unpack msg)
    Right c  -> return c