#!/bin/sh

# add a debug option, default off (--debug)
DEBUG_OPTS=""

# add a png-save option, default on (--no-png-save)
PNG_SAVE_OPTS="-DPNG_SAVE_FORMAT"

while [ $# != 0 ]
do
    case "$1" in
        --help) echo
                echo "Options:"
                echo
                echo "--help         Display this help text"
                echo "--debug        Enable debugging support"
                echo "--no-png-save  Disable saving screenshots in PNG format"
                echo
                exit ;;
        --debug) DEBUG_OPTS="-ggdb3 -gstabs+ -D_DEBUG" ;;
        --no-png-save) PNG_SAVE_OPTS="" ;;
    esac
    shift
done

# Reset existing configuration file
rm -f configuration
touch configuration

# TODO: Add --debug= option
CFLAGS=$CFLAGS" -Wall -I. "$DEBUG_OPTS" "$PNG_SAVE_OPTS

# TODO: Make this better - we don't need it right now
# CFLAGS=$CFLAGS' -DDATAFOLDER=\"data/\" -DMAPFOLDER=\"data/maps/\"'

# Mac OS X configuration
if [ "`uname`" = Darwin ]
then
#SDL_CFLAGS=`sdl-config --cflags`
#SDL_LIBS=`sdl-config --libs`
SDK="-arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk"
SDL_CFLAGS="$SDK -I/Library/Frameworks/SDL.framework/Headers -I/Library/Frameworks/SDL_net.framework/Headers -I/Library/Frameworks/SDL_mixer.framework/Headers -I/Library/Frameworks/SDL_image.framework/Headers"
SDL_LIBS="-F/Library/Frameworks -framework CoreFoundation -framework Cocoa -framework SDL"
echo 'CFLAGS:=$(CFLAGS) -DLINUXFUNC -DPREFIXPATH=\"\" '$SDL_CFLAGS $CFLAGS >> configuration
echo 'LDFLAGS:=$(LDFLAGS) '$SDL_LIBS $LDFLAGS -framework SDL_image -framework SDL_mixer >> configuration
echo 'COMMON_OBJS:=$(COMMON_OBJS) build/linfunc.o build/SDLMain.o' >> configuration
fi

# Linux configuration
if [ "`uname`" = OpenBSD ]
then echo 'CFLAGS:=$(CFLAGS) -DLINUXFUNC -DPREFIXPATH=\"/usr/share/smw\" '`sdl-config --cflags` $CFLAGS >> configuration
echo 'LDFLAGS:=$(LDFLAGS) '`sdl-config --libs` $LDFLAGS -lSDL_image -lSDL_mixer >> configuration
echo 'COMMON_OBJS:=$(COMMON_OBJS) build/linfunc.o' >> configuration
fi

# Windows configuration
if uname | grep MINGW32
then
    if [ -d `pwd`/mingw-support ]
    then
        echo 'CFLAGS:=$(CFLAGS) '-I`pwd`/mingw-support/include -I`pwd`/mingw-support/include/SDL -Dmain=SDL_main $CFLAGS >> configuration
        echo 'LDFLAGS:=$(LDFLAGS) '-L`pwd`/mingw-support/lib -lmingw32 -lSDLmain -lSDL -mwindows $LDFLAGS -lSDL_image -lSDL_mixer >> configuration
    else
    	echo 'Please check out mingw-support to build this project.'
	echo '# cvs co mingw-support'
	rm -f configuration
        exit 1
    fi
fi

mkdir -p build
gmake clean