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)"

    ]

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))