#!/bin/sh

BUILD=build.linux
LOG=log.build

if test "$#" -ge 1
then
    case "$1" in
	clean)
	    echo "Cleaning package..."
	    for dir in SCEDA GDD RS SIRA
	    do
		if test -r "$dir"
		then
		    echo "Cleaning $dir"
		    cd "$dir"
		    ln -sf Makefile.config.linux Makefile.config
		    make clean > /dev/null 2>&1 
		    rm -f Makefile.config
		    cd ..
		fi
	    done
	    rm -rf "$BUILD"
	    rm -f "$LOG"
	    exit 0
	    ;;
	*)
	    echo "Unknown argument $1"
	    exit 1
    esac
fi

if test -r "$BUILD"
then
    echo "$BUILD already exists"

    echo "To rebuild the entire package, please first clean the "
    echo "package by typing ./`basename $0` clean"
    exit 1
fi

mkdir -p "$BUILD"
rm -f "$LOG"

LIBPATH=`pwd`/"$BUILD"

LPSOLVEPATH=/usr/local

GDD_ask_XML() {
  xmlpath=`which xml2-config`
  if test "$?" -ne 0
  then
      echo "Can't find xml2-config... disabling xml parser feature"
      return 0
  fi
cat <<EOF
libGDD includes a basic xml parser (require libxml2 devel >= 2.7.1).
You may disable this feature but please note that in this case most
of furnished examples will fail to compile.
EOF
  echo -n "Would you like to build the xml parsers of libGDD? [y] "
  read withxml
  withxml=`echo "$withxml" | tr [A-Z] [a-z]`
  if test "/$withxml/" = "/n/" -o "/$withxml/" = "/no/"
  then
      return 0
  else
      return 1
  fi
}

SIRA_ask_LPSOLVE() {
    echo -n "Please enter lp_solve installation path: [$LPSOLVEPATH] "
    read lppath
    if test "/$lppath/" != "//"
    then
	LPSOLVEPATH="$lppath"
    fi
    if test -r "$LPSOLVEPATH"
    then
	return 0
    else
	echo "Invalid path."
	return 1
    fi
}

SIRA_ask_METHOD() {
cat <<EOF
libSIRA has three implementations of SIRALINA:
1-standalone version (LGPL)
2-lp_solve version (LGPL, require lp_solve >= 5.5)
3-GLPK version (GPL tainted, require GLPK devel >= 4.30)
EOF
  echo -n "Which version do you want to build? [1] "
  read method
  if test "/$method/" = "/2/"
  then
      if SIRA_ask_LPSOLVE 
      then
	  return 2
      else
	  return 1
      fi
  else if test "/$method/" = "/3/"
  then
      return 3
  else
      return 1
  fi
  fi
}

DOC_ask() {
  doxpath=`which doxygen`
  if test "$?" -ne 0
  then
      echo "Can't find doxygen... skipping documentation generation."
      return 0
  fi
  echo -n "Would you like to build the documentations? [y] "
  read ans
  ans=`echo "$ans" | tr [A-Z] [a-z]`
  if test "/$ans/" = "/n/" -o "/$ans/" = "/no/"
  then
      return 0
  else
      return 1
  fi
}

for dir in SCEDA GDD RS SIRA
do
    if test -r "$dir"
    then
	echo "Building $dir"
	cd "$dir"
	ln -sf Makefile.config.linux Makefile.config
	case $dir in
	    GDD)
		GDD_ask_XML
		case "$?" in
		    0)
			xml="no"
			echo "Disabling XML parser"
			;;
		    1)
			xml="yes"
			echo "Enabling XML parser"
			;;
		esac
		make LIBHOME="$LIBPATH" install TARGET="$LIBPATH" ENABLE_XML_PARSER="$xml" >> "../$LOG" 2>&1 
		;;
	    SIRA)
		SIRA_ask_METHOD
		case "$?" in
		    1)
			meth="flow"
			echo "Chosen SIRA implementation: standalone version"
			;;
		    2)
			meth="lpsolve
"			echo "Chosen SIRA implementation: lp_solve version"
			;;
		    3)
			meth="glpk"
			echo "Chosen SIRA implementation: glpk version (GPL tainted binary)"
			;;
		esac
		make LIBHOME="$LIBPATH" install TARGET="$LIBPATH" METHOD="$meth" LP_SOLVE="$LPSOLVEPATH" >> "../$LOG" 2>&1 
		;;
	    *)
		make LIBHOME="$LIBPATH" install TARGET="$LIBPATH" >> "../$LOG" 2>&1 
	esac
	cd ..
    fi
done

if ! DOC_ask
then
    for dir in SCEDA GDD RS SIRA
    do
	if test -r "$dir"
	then
	    cd "$dir"
	    make doc >> "../$LOG" 2>&1 
	    cd ..
	fi
    done
fi