module Opts

(

	getOpts,

) where

import System

import System.Console.GetOpt

import Network

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)",

	Option []    ["db-login"] (ReqArg readDbLogin "STRING") "database access login",

	Option []    ["db-password"] (ReqArg readDbPassword "STRING") "database access password",

	Option []    ["db-host"] (ReqArg readDbHost "STRING") "database host"

	]

readListenPort,

	readDedicated,

	readDbLogin,

	readDbPassword,

	readDbHost :: String -> ServerInfo -> ServerInfo

readListenPort str opts = opts{listenPort = readPort}

	where

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

readDedicated str opts = opts{isDedicated = readDedicated}

	where

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

readDbLogin str opts = opts{dbLogin = str}

readDbPassword str opts = opts{dbPassword = str}

readDbHost str opts = opts{dbHost = str}

getOpts :: ServerInfo -> IO ServerInfo

getOpts opts = do

	args <- getArgs

	case getOpt Permute options args of

		(o, [], []) -> return $ foldr ($) opts o

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

	where header = "Usage: newhwserv [OPTION...]"