#!/bin/sh
# $Id: mcs-version.in 5550 2009-02-19 18:14:43Z cher $
# Copyright (c) 2005-2008 Alexander Chernov <cher@ejudge.ru>

LANG_CONFIG_DIR="/home/judges/compile/conf/lang.d"

common_config() {
  echo 'long_name="Mono C#"'
  echo 'src_sfx=".cs"'
  echo 'exe_sfx=".exe"'
  echo 'arch="msil"'
  echo 'insecure=1'
}

failure() {
  rm -f conftest*
  echo 'version='
  echo 'arg="'"${arg}"'"'
  common_config
  echo 'MONORUN=false'
  echo 'MONODIR='
  echo 'MONOVER='
  echo 'MCSRUN=false'
  echo 'MCSDIR='
  [ "${verbose}" = 1 ] && echo "no" >&2
  exit 1
}

unset LANG
unset LC_ALL
unset LC_MESSAGES
unset LANGUAGE

if [ x"$1" = x-v ]
then
  verbose=1
  shift
fi

# recheck the language
if [ x"$1" = x-r ]
then
  arg="$2"
  [ x"$2" != x ] && MCSRUN="$2"
  [ "${MCSRUN}" = "" ] && MCSRUN="gmcs"

  [ "${verbose}" = 1 ] && echo -n "checking whether Mono C# is available..." >&2
  MCSDIR=`dirname "${MCSRUN}"` || failure
  if [ "${MCSDIR}" = . ]
  then
    MONORUN=mono
    MONODIR=
    MCSDIR=
  else
    MONORUN="${MCSDIR}/mono"
    MONODIR="${MCSDIR}"
  fi
  "${MONORUN}" --version >/dev/null 2>&1 || failure
  MONOVER=`"${MONORUN}" --version 2>&1 | grep "version" | awk '{gsub(",","",$5); print $5;}'` || failure
  [ "${MONOVER}" != "" ] || failure
  "${MCSRUN}" --version >/dev/null 2>&1 || failure
  version=`"${MCSRUN}" --version 2>&1 | grep "version" | awk '{gsub(",","",$5); print $5;}'` || failure
  [ "${version}" != "" ] || failure
  cat > conftest.cs <<EOF
public class conftest
{
  public static void Main()
  {
    System.Console.WriteLine("OK");
  }
}
EOF
  "${MCSRUN}" conftest.cs -out:conftest.exe >/dev/null 2>&1 || failure
  [ -f conftest.exe ] || failure
  "${MONORUN}" conftest.exe >/dev/null 2>&1 || failure

  rm -f ./conftest*
  echo 'version="'"${version}"'"'
  echo 'arg="'"${arg}"'"'
  common_config
  echo 'MONORUN="'"${MONORUN}"'"'
  echo 'MONODIR="'"${MONODIR}"'"'
  echo 'MONOVER="'"${MONOVER}"'"'
  echo 'MCSRUN="'"${MCSRUN}"'"'
  echo 'MCSDIR="'"${MCSDIR}"'"'
  [ "${verbose}" = 1 ] && echo "yes, ${MCSRUN}, ${version}" >&2
  exit 0
fi

if [ x"$1" = x-l ]
then
  echo "Mono C# compiler [http://www.mono-project.com]"
  exit 0
fi

[ "${EJUDGE_LANG_CONFIG}" = "" ] && EJUDGE_LANG_CONFIG="${LANG_CONFIG_DIR}/mcs.cfg"

if [ -f "${EJUDGE_LANG_CONFIG}" ]
then
  . "${EJUDGE_LANG_CONFIG}"
else
  MCSRUN="gmcs"
  MCSDIR=""
fi

if [ x"${MCSRUN}" = x -o x"${MCSRUN}" = xfalse ]
then
  echo "This language is not supported." >&2
  exit 1
fi

if [ x"${MCSDIR}" != x ]
then
  PATH="${MCSDIR}/bin:${PATH}"
fi

if [ x"$1" = x-p ]
then
    echo "${MCSRUN}"
    exit 0
fi

"${MCSRUN}" --version >/dev/null 2>&1 || exit 1
    
[ x"$1" = x-f ] && echo -n "Mono C# "

"${MCSRUN}" --version 2>&1 | grep "version" | awk '{gsub(",","",$5); print $5;}'