#!/bin/sh

## Minimum versions of libs
###################################
SDL_MIN_VERSION="1.1.6"
SMPEG_MIN_VERSION="0.4.2"

## Defaults
###################################
ENABLE_SDL="yes"
ENABLE_SMPEG="yes"
ENABLE_VORBIS="no"
ENABLE_SETUP="yes"

## Where do we look for stuff?
###################################
std_bin_dirs="/usr/bin /usr/X11R6/bin /usr/local/bin $HOME/bin"
std_lib_dirs="/usr/lib /usr/X11R6/lib /usr/local/lib $HOME/lib"

## Bring in the functions
###################################
source ./scripts/configure_functions

## print introduction
###################################
print_separator
print_warning "This is a script to determine what options"
print_warning "should be built into Chromium B.S.U."
print_warning "It is not an autoconf configure script."
print_separator

## Check command line for options
###################################
check_command_line $@

## Check SDL installation
######################################################################
if [ $ENABLE_SDL = "yes" ]; then
	print_message ""
	print_message "Verify SDL install:"
	print_message "------------------"
	if check_for_sdl_config; then
		print_message "found $SDL_CONFIG"
		SDL_LIBS="\`\$(SDL_CONFIG) --libs\`"
		SDL_CFLAGS="\`\$(SDL_CONFIG) --cflags\` -DUSE_SDL"
	else
		print_error "ERROR - sdl-config could not be found in: $std_bin_dirs"
		print_sdl_error
		exit 1
	fi

	if check_sdl_version; then
		print_message "SDL version (`$SDL_CONFIG --version`) ok."
	else
		print_error "ERROR!! - SDL version (`$SDL_CONFIG --version`) is too old! ($SDL_MIN_VERSION or greater required)"
		print_sdl_error
		exit 1
	fi
else
	# try using GLUT...
	SDL_CFLAGS="-DUSE_GLUT"
	SDL_LIBS="-lglut -lpthread -lXmu"
	# can't use smpeg w/o SDL...
	ENABLE_SMPEG="no"
fi

## Check smpeg installation
######################################################################
if [ $ENABLE_SMPEG = "yes" ]; then
	print_message ""
	print_message "Verify smpeg install:"
	print_message "--------------------"
	if check_for_smpeg_config; then
		print_message "  found $SMPEG_CONFIG"
		SMPEG_LIBS="\`\$(SMPEG_CONFIG) --libs\`"
		SMPEG_CFLAGS="\`\$(SMPEG_CONFIG) --cflags\`"
	else
		print_warning "WARNING - smpeg-config could not be found in: $std_bin_dirs"
		print_smpeg_warning
		SMPEG_CONFIG=""
		SMPEG_CFLAGS=""
		SMPEG_LIBS=""
		ENABLE_SMPEG="no"
	fi

	if [ -z $SMPEG_CONFIG ]; then
		echo "" > /dev/null
	else
		if check_smpeg_version; then 
			print_message "smpeg version (`$SMPEG_CONFIG --version`) ok."
		else
			print_warning "WARNING - smpeg version (`$SMPEG_CONFIG --version`) is too old! ($SMPEG_MIN_VERSION or greater required)"
			print_smpeg_warning
			SMPEG_CONFIG=""
			SMPEG_CFLAGS=""
			SMPEG_LIBS=""
			ENABLE_SMPEG="no"
		fi
	fi
fi


## Check Ogg/Vorbis installation
######################################################################
if [ $ENABLE_VORBIS = "yes" ]; then
	print_message ""
	print_message "Verify Ogg/Vorbis install:"
	print_message "-------------------------"
	if check_for_vorbis_libs; then
		print_message "found required Vorbis libs."
		print_message "VORBIS_LIBS=$VORBIS_LIBS"
		print_vorbis_notes
	else
		print_warning "WARNING - Ogg/Vorbis libs (vorbis and vorbisfile) could not be found in: $std_lib_dirs"
		print_vorbis_warning
		VORBIS_LIBS=""
		ENABLE_VORBIS="no"
	fi
fi

## Do half-assed check for Qt
######################################################################
if [ $ENABLE_SETUP = "yes" ]; then
	if [ -z $QTDIR ]; then
		echo""
		print_warning "WARNING: QTDIR environment variable not set!"
		print_warning "If you want to build the chromium-setup app, you need to have"
		print_warning "Qt 2.x or greater installed, and set the QTDIR environment"
		print_warning "variable to where it is installed. Common locations for Qt"
		print_warning "would be /usr/lib/qt2 or /usr/lib/qt-2.x.x."
		print_warning "The setup app is *NOT* a requirement to play Chromium B.S.U. - "
		print_warning "it is merely a convinent way to set game options and create"
		print_warning "playlists."
		print_warning "The setup app will not be built."
		ENABLE_SETUP="no"
	fi
fi
	
## OpenAL configure options
######################################################################
OPENAL_CONFIG_OPTS="./configure"

# are we using SDL?
if [ $ENABLE_SDL = "yes" ]; then
	OPENAL_CONFIG_OPTS="$OPENAL_CONFIG_OPTS --enable-sdl"
fi

# do we have smpeg?
if [ $ENABLE_SMPEG = "yes" ]; then
	OPENAL_CONFIG_OPTS="$OPENAL_CONFIG_OPTS --enable-smpeg"
fi

# do we have Ogg/Vorbis?
if [ $ENABLE_VORBIS = "yes" ]; then
	OPENAL_CONFIG_OPTS="$OPENAL_CONFIG_OPTS --enable-vorbis"
fi

## set up other config.mak variables
######################################################################
GL_LIBS="-lglpng -lGL -lGLU -lm"
AL_LIBS="-L../support/openal/lib -lopenal -ldl" 
AL_CFLAGS="-I../support/openal/linux/include -I../support/openal/include"

## write out config.mak
######################################################################
echo "OPENAL_CONFIG_OPTS = $OPENAL_CONFIG_OPTS" > config.mak
echo ""                               >> config.mak
echo "SDL_CONFIG   = $SDL_CONFIG"     >> config.mak
echo "SMPEG_CONFIG = $SMPEG_CONFIG"   >> config.mak
echo ""                               >> config.mak
echo "AL_CFLAGS    = $AL_CFLAGS"      >> config.mak
echo "SDL_CFLAGS   = $SDL_CFLAGS"     >> config.mak
echo "SMPEG_CFLAGS = $SMPEG_CFLAGS"   >> config.mak
echo "PKG_CFLAGS   = $PKG_CFLAGS"     >> config.mak
echo ""                               >> config.mak
echo "GL_LIBS      = $GL_LIBS"        >> config.mak
echo "AL_LIBS      = $AL_LIBS"        >> config.mak
echo "SDL_LIBS     = $SDL_LIBS"       >> config.mak
echo "SMPEG_LIBS   = $SMPEG_LIBS"     >> config.mak
echo "VORBIS_LIBS  = $VORBIS_LIBS"    >> config.mak


## done!
######################################################################
print_message ""
print_separator
print_message "wrote ./config.mak"
if [ $ENABLE_SETUP = "yes" ]; then
	cp -f ./scripts/Makefile.all ./Makefile
else
	cp -f ./scripts/Makefile.no-setup ./Makefile
fi
print_message "wrote ./Makefile"
print_message ""
print_message "Now, type 'make' to build Chromium B.S.U.!"
print_message ""