module Chkcfg (chkcfg) where

import System.Directory
import System.FilePath
import Control.Monad

chkcfg = do
    flp <- fmap (</> ".pgdl") getHomeDirectory
    fle <- doesFileExist flp
    unless fle $ do
              writeFile flp defcfg
              error "please config file at ~/.pgdl first!"

defcfg = unlines [  "",
                    "# example: ",
                    "# username = \"jack\" ",
                    "# password = \"mypassw\" ",
                    "# servpath = \"example.org/videodir/\" ",
                    "# localdir = \"/home/jack/Downloads/\" ", 
                    "",
                    "# username and localdir is optional.",
                    "",
                    "username = \"\"",
                    "password = \"\"",
                    "servpath = \"\"",
                    "localdir = \"\"",
                    ""
                 ]