#!/bin/sh

VMAJOR=2
VMINOR=1
VREVISION=9

USER_CONF=Makefile.config

prefix=/usr/local

# default values
BUILD_EDITOR="BUILD_EDITOR = 1"
USE_FLTK2="USE_FLTK2 = 1"
USE_NCURSES="USE_NCURSES = 1"
INSTALL_DEV="#INSTALL_DEV is not set"
CPPFLAGS_FLTK2="CPPFLAGS += -D '_USE_FLTK2_ = 1' "
CPPFLAGS_NCURSES="CPPFLAGS += -D '_USE_NCURSES_ = 1' "
CPPFLAGS_EDITOR="CPPFLAGS += -D '_BUILD_EDITOR_ = 1' "
GCC_OPTIONS=""
STATIC="#STATIC is not set"

DEBUG="no"
PROFILING="no"


# commandline arguments processing
while [ "x$1" != "x"  ]
do
  case "$1" in
      --prefix )
          shift
          prefix=$1
          shift
          ;;
      --enable-fltk2 | --with-fltk2 )
	  USE_FLTK2="USE_FLTK2 = 1"
	  CPPFLAGS_FLTK2="CPPFLAGS += -D '_USE_FLTK2_ = 1' " 
          shift
          ;;
      --disable-fltk2 | --without-fltk2 )
	  USE_FLTK2="#USE_FLTK2 is not set"
	  CPPFLAGS_FLTK2="" 
	  BUILD_EDITOR="#BUILD_EDITOR is not set"
	  CPPFLAGS_EDITOR=""
          shift
          ;;
      --enable-ncurses | --with-ncurses )
	  USE_NCURSES="USE_NCURSES = 1"
	  CPPFLAGS_NCURSES="CPPFLAGS += -D '_USE_NCURSES_ = 1' " 
          shift
          ;;
      --disable-ncurses | --without-ncurses )
	  USE_NCURSES="#USE_NCURSES is not set"
	  CPPFLAGS_NCURSES="" 
          shift
          ;;
      --enable-editor )
	  BUILD_EDITOR="BUILD_EDITOR = 1"
	  CPPFLAGS_EDITOR="CPPFLAGS += -D '_BUILD_EDITOR_ = 1' " 
          shift
          ;;
      --disable-editor )
	  BUILD_EDITOR="#BUILD_EDITOR is not set"
	  CPPFLAGS_EDITOR=""
          shift

          ;;
      --install-dev )
	  INSTALL_DEV="INSTALL_DEV = 1"
	  shift
	  ;;
      --enable-static )
	  STATIC="STATIC = 1"
	  shift
	  ;;
      --enable-debug )
	  DEBUG="yes"
	  GCC_OPTIONS=$(echo $GCC_OPTIONS" -g")
	  shift
	  ;;
      --enable-profiling )
	  PROFILING="yes"

	  GCC_OPTIONS=$(echo $GCC_OPTIONS" -pg")
	  shift
	  ;;
      --help | -h | * )
	  echo "--help | -h       : What you're reading at this very moment"
	  echo ""
	  echo "--prefix /prefix  : Set a specific location to install (default: /usr/local)"
	  echo ""
	  echo "--with-fltk2      : enable building FLTK2 (www.fltk.org) GUI (default: yes)"
	  echo "--with-ncurses    : enable building Ncurses GUI (default: yes)"
	  echo "--enable-editor   : enable building level editor (default: yes)"
	  echo ""
	  echo "--without-fltk2   : disable building FLTK2 GUI"
	  echo "--without-ncurses : disable building Ncurses GUI"
	  echo "--disable-editor  : disable building level editor"
	  echo ""
	  echo "--install-dev     : install headers static & shared libraries (default: no)"
	  echo "--enable-static   : compile statically linked binaries (default: no)"
	  echo "--enable-debug    : compile with debug symbols (default: no)"
	  echo "--enable-profiling: compile with profiling support (default: no)"
	  exit
          ;;
  esac
done

# Informing the user of what will be set
echo "ngstar configuration :"
echo "    prefix                    : $prefix"
echo -n "    build editor              : "
if [ "$BUILD_EDITOR" == "BUILD_EDITOR = 1" ] ; then
    echo "yes"
else
    echo "no"
fi
echo -n "    build fltk2 gui           : "
if [ "$USE_FLTK2" == "USE_FLTK2 = 1" ] ; then
    echo "yes"
else
    echo "no"
fi
echo -n "    build ncurses gui         : "
if [ "$USE_NCURSES" == "USE_NCURSES = 1" ] ; then
    echo "yes"
else
    echo "no"
fi
echo -n "    install dev tools         : "
if [ "$INSTALL_DEV" == "INSTALL_DEV = 1" ] ; then
    echo "yes"
else
    echo "no"
fi
echo -n "    compile static binaries   : "
if [ "$STATIC" == "STATIC = 1" ] ; then
    echo "yes"
else
    echo "no"
fi
echo -n "    compile with debug symbols: "
if [ "$DEBUG" == "yes" ] ; then
    echo "yes"
else
    echo "no"
fi
echo -n "    compile with profiling    : "
if [ "$PROFILING" == "yes" ] ; then
    echo "yes"
else
    echo "no"
fi

# Write the config file
echo "prefix ?= $prefix" > $USER_CONF
echo $USE_FLTK2 >> $USER_CONF
echo $USE_NCURSES >> $USER_CONF
echo $BUILD_EDITOR >> $USER_CONF
echo $INSTALL_DEV >> $USER_CONF
echo $STATIC >> $USER_CONF
echo $CPPFLAGS_FLTK2 >> $USER_CONF
echo $CPPFLAGS_NCURSES >> $USER_CONF
echo $CPPFLAGS_EDITOR >> $USER_CONF
cat <<EOF >> $USER_CONF
######## THERE IS NO SERVICABLE PARTS BELOW THIS LINE ########

WD = \$(shell pwd)

INSTALL = cp -d

DESTIR=
PREFIX ?= \$(DESTDIR)\$(prefix)

CC = gcc $GCC_OPTIONS -Wall --pedantic-errors -Wstrict-prototypes
CXX = g++ $GCC_OPTIONS -Wall --pedantic-errors
AR=ar rcs

CCOPTIMISATION += -O3 -funroll-loops -mtune=i686 -march=i486

CPPFLAGS += -D 'APPLICATION_VERSION="\$(NAME) \$(MAJOR).\$(MINOR).\$(REVISION)"' -D 'LEVELSETS_PATH="\$(LEVELSETS_DIR)"'

ifdef USE_FLTK2
	CPPFLAGS += -D 'THEMES_PATH="\$(THEMES_DIR)"'
else
ifdef BUILD_EDITOR
	CPPFLAGS += -D 'THEMES_PATH="\$(THEMES_DIR)"'
endif
endif

NAME = ngstar
MAJOR = $VMAJOR
MINOR = $VMINOR
REVISION = $VREVISION

LEVELSETS_DIR = \$(PREFIX)/share/\$(NAME)/levelsets
THEMES_DIR = \$(PREFIX)/share/\$(NAME)/themes
BIN_DIR = \$(PREFIX)/bin
DOC_DIR = \$(PREFIX)/doc/\$(NAME)-\$(MAJOR).\$(MINOR).\$(REVISION)
LIB_DIR = \$(PREFIX)/lib
INCLUDES_DIR = \$(PREFIX)/include/ngstar2

.PHONY : clean real-clean install uninstall all archive archive_src archive_bin_dynamic archive_bin_static

.cc.o:
	echo Compiling \$<...
	\$(CXX) -I.. \$(CPPFLAGS) -c \$<

# Be quiet when building...
.SILENT:

EOF