-- GenI surface realiser
-- Copyright (C) 2005 Carlos Areces and Eric Kow
--
-- 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; either version 2
-- of the License, or (at your option) any later version.
--
-- 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

{-# LANGUAGE CPP #-}
module NLP.GenI.Main where

import           Control.Applicative       ((<$>))
import           Data.IORef                (newIORef)
import           Data.Typeable             (Typeable)
import           Data.Version              (showVersion)
import           System.Environment        (getArgs, getProgName)

import           Paths_GenI                (version)

import           NLP.GenI                  (ProgState (..), defaultCustomSem,
                                            emptyProgState)
import           NLP.GenI.Flag
import           NLP.GenI.Configuration    (Params,
                                            optionsForStandardGenI,
                                            optionsSections,
                                            processInstructions,
                                            readGlobalConfig,
                                            setLoggers, treatArgs, usage)
import           NLP.GenI.Console          (consoleGeni)
import           NLP.GenI.LexicalSelection (CustomSem (..))

main :: IO ()
main = do
    args  <- getArgs
    confArgs <- forceGuiFlag <$> (processInstructions =<< treatArgs optionsForStandardGenI args)
    let pst = emptyProgState confArgs
    wrangler <- defaultCustomSem pst
    mainWithState pst wrangler

mainWithState :: ProgState -> CustomSem sem -> IO ()
mainWithState pst wrangler = do
    maybe (return ()) setLoggers =<< readGlobalConfig
    pname <- getProgName
    let has :: (Typeable f, Typeable x) => (x -> f) -> Bool
        has = flip hasFlag pst
    pstRef <- newIORef pst
    case () of
        _ | has HelpFlg               -> putStrLn (usage optionsSections pname)
          | has VersionFlg            -> putStrLn (pname ++ " " ++ showVersion version)
          | otherwise                 -> consoleGeni pstRef wrangler

forceGuiFlag :: Params -> Params
forceGuiFlag = setFlag DisableGuiFlg ()