#!/bin/sh

name="nlsop_server nlsop_client nlsop_gui"
main="nlsop"

#defaults
prefix=/usr
dfblib=""
dfbinc=""
apidir=""
nodfb=0

echo $run_cmd

usage()	{
	echo "usage $0 <options>"
	echo "options:"
	echo "--prefix=PREFIX	specify install prefix"
	echo "--with-dfblib=DIR	specify directfb lib dir"
	echo "--with-dfbinc=DIR	specify directfb include dir"
        echo "--with-api=DIR	specify api dir"
	echo
	}

while [ "$1" ]; do
	case "`echo $1 | awk -F= '{ print $1 }'`" in
		--prefix)	prefix=`echo $1 | awk -F= '{ print $2 }'`; shift;;
		--help)		usage; shift 1;;
		--with-dfblib)	dfblib=`echo $1 | awk -F= '{ print $2 }'`; shift;;
		--with-dfbinc)	dfbinc=`echo $1 | awk -F= '{ print $2 }'`; shift;;
		--without-dfb)	nodfb=1; shift ;;
		--with-api)	apidir=`echo $1 | awk -F= '{ print $2 }'`; shift;;
	esac
done

echo "checking for api stuff ..."
api_dir="0"
if [ -z "$apidir" ]; then
	for i in ../api ../../api; do
		if [ -f $i/CHANGELOG ]; then
			api_dir=$i
		fi
	done
else
	if [ -f $apidir/CHANGELOG ]; then
		api_dir=$apidir
	fi
fi
if [ "$api_dir" = "0" ]; then
	echo "api files not found ..."
	echo "WARNING: your build will fail."
	echo "please get the api files first (see README file)."
	api_dir="./"
fi

echo "checking for dfb stuff ..."
dfb_inc_dir="0"
if [ -z "$dfbinc" ]; then
	for i in /usr/include /usr/local/include; do
		if [ -d $i/directfb ]; then
			dfb_inc_dir=$i/directfb
		fi
	done
else
	if [ -d $dfbinc/directfb ]; then
		dfb_inc_dir=$dfbinc/directfb
	fi
fi
if [ "$dfb_inc_dir" = "0" ]; then
	echo "dfb includes not found ..."
	nodfb=1
fi
dfb_lib_dir="0"
if [ -z "$dfblib" ]; then
	for i in /usr/lib /usr/local/lib; do
		if [ -f $i/libdirectfb.so ]; then
			dfb_lib_dir=$i
		fi
	done
else
	if [ -f $dfblib/libdirectfb.so ]; then
		dfb_lib_dir=$dfblib
	fi
fi
if [ "$dfb_lib_dir" = "0" ]; then
	echo "dfb libs not found ..."
	nodfb=1
fi

[ "$nodfb" = "0" ] && echo "directfb installation looks good :)"

GENLIBS="-lm -lncurses"
GENAPI="network.o event.o list.o display.o input.o"

echo "creating Makefile"

cat > Makefile << EOF
# $main Makefile, created `date`

INCLUDEDIR = /usr/include
EOF

if [ "$nodfb" = "0" ]; then

cat >> Makefile << EOF
CFLAGS = -DDEBUG -DUSE_DFB_API -DFONT=\"$prefix/share/$main/decker.ttf\" -O3 -Wall -I$dfb_inc_dir
LIBS = -L$dfb_lib_dir -ldirectfb $GENLIBS

OBJS = random.o dfbapi.o $GENAPI
EOF

else

cat >> Makefile << EOF
CFLAGS = -DDEBUG -DNODFB -O3 -Wall
LIBS = -lm -lncurses

OBJS = random.o $GENAPI
EOF

fi

cat >> Makefile << EOF
OBJS2 = $name

links:
EOF

for i in $GENAPI; do
	foo="`echo $i | sed 's/\.o//g'`"
	cat >> Makefile << EOF
	ln -sf $api_dir/$foo/${foo}.{c,h} .
EOF
done

for i in $name; do
cat >> Makefile << EOF

$i: links \$(OBJS)
	\$(CC) \$(CFLAGS) -o \$@ \$(OBJS) \$(LIBS) ${i}.c

EOF
done

cat >> Makefile << EOF
nlsop: links $name
	\$(CC) \$(CFLAGS) -o \$@ \$(OBJS) \$(LIBS) nlsop.c

EOF

cat >> Makefile << EOF
all: $main

clean:
	rm -f \$(OBJS) \$(OBJS2)

remake: clean all

install:
	mkdir -p $prefix/bin
	cp $name $prefix/bin
	mkdir -p $prefix/share/$main
	cp decker.ttf $prefix/share/$main
	chmod 644 $prefix/share/$main/decker.ttf
EOF

echo "done"