-- 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.MainGui where

import           Data.IORef                (newIORef)
import           Data.Typeable             (Typeable)
import           Data.Version              (showVersion)
import           System.Environment        (getArgs, getProgName)

import           NLP.GenI                  (ProgState (..), defaultCustomSem,
                                            emptyProgState)
import           NLP.GenI.Configuration    (optionsForStandardGenI,
                                            optionsSections,
                                            processInstructions,
                                            readGlobalConfig, setLoggers,
                                            treatArgs, usage)
import           NLP.GenI.Console          (consoleGeni)
import           NLP.GenI.Flag
import           NLP.GenI.Gui              (guiGeni)
import           NLP.GenI.LexicalSelection
import           Paths_geni_gui            (version)

main :: IO ()
main =  do
    stuff <- processInstructions
             =<< treatArgs optionsForStandardGenI
             =<< getArgs
    let pst = emptyProgState stuff
    wrangler <- defaultCustomSem pst
    mainWithState pst wrangler

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