{-

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 \-}

{-# LANGUAGE CPP #-}

module Opts

(

    getOpts,

) where

import System.Environment

import System.Console.GetOpt

import Data.Maybe ( fromMaybe )

-------------------

import CoreTypes

import Utils

options :: [OptDescr (ServerInfo -> ServerInfo)]

options = [

    Option "p" ["port"] (ReqArg readListenPort "PORT") "listen on PORT",

    Option "d" ["dedicated"] (ReqArg readDedicated "BOOL") "start as dedicated (True or False)"

    ]

readListenPort

    , readDedicated

    :: String -> ServerInfo -> ServerInfo

readListenPort str opts = opts{listenPort = readPort}

    where

        readPort = fromInteger $ fromMaybe 46631 (maybeRead str :: Maybe Integer)

readDedicated str opts = opts{isDedicated = readDed}

    where

        readDed = fromMaybe True (maybeRead str :: Maybe Bool)

getOpts :: ServerInfo -> IO ServerInfo

getOpts opts = do

    args <- getArgs

    case getOpt Permute options args of

        (o, [], []) -> return $ foldr ($) opts{runArgs = args} o

        (_,_,errs) -> ioError (userError (concat errs ++ usageInfo header options))

    where header = "Usage: hedgewars-server [OPTION...]"