#!/bin/bash

. scripts/lib.sh

if [ ! $ARCH ]; then
	ARCH=i686
fi

# set up ccache
export CC="ccache gcc"
export CXX="ccache g++"

# AppImage settings
APP=Xash3DFWGS
APPDIR=$APP-$ARCH.AppDir

build_sdl2()
{
	cd $TRAVIS_BUILD_DIR/SDL2_src
	if [ "$ARCH" = "i686" ]; then
		export CFLAGS="-msse2 -march=i686 -m32 -ggdb -O2"
		export LDFLAGS="-m32"
	fi
	./configure --disable-render --disable-haptic --disable-power --disable-filesystem \
		--disable-file --disable-libudev --disable-dbus --disable-ibus \
		--disable-ime --disable-fcitx \
		--enable-alsa-shared --enable-pulseaudio-shared \
		--enable-wayland-shared --enable-x11-shared \
		--prefix / || die # get rid of /usr/local stuff
	make -j2 || die
	mkdir -p $TRAVIS_BUILD_DIR/SDL2_linux
	make install DESTDIR=$TRAVIS_BUILD_DIR/SDL2_linux || die
	export CFLAGS=""
	export LDFLAGS=""
}

build_engine()
{
	# Build engine
	cd $TRAVIS_BUILD_DIR

	WAF_CONFIGURE_FLAGS="--sdl2=$TRAVIS_BUILD_DIR/SDL2_linux -T release --enable-stb --prefix=$APPDIR --win-style-install"
	if [ "$ARCH" = "amd64" ]; then # we need enabling 64-bit target only on Intel-compatible CPUs
		WAF_CONFIGURE_FLAGS="$WAF_CONFIGURE_FLAGS -8"
	fi
	./waf configure $WAF_CONFIGURE_FLAGS || die
	./waf build || die
}

build_appimage()
{
	cd $TRAVIS_BUILD_DIR

	./waf install || die

	# Generate extras.pak
	python3 scripts/makepak.py xash-extras/ $APPDIR/extras.pak

	cp SDL2_linux/lib/libSDL2-2.0.so.0 $APPDIR/
	if [ "$ARCH" = "i686" ]; then
		cp vgui-dev/lib/vgui.so $APPDIR/
	fi

	cat > $APPDIR/AppRun << 'EOF'
#!/bin/sh

if [ "$XASH3D_BASEDIR" = "" ]; then
	export XASH3D_BASEDIR=$PWD
fi
echo "Xash3D FWGS installed as AppImage."
echo "Base directory is $XASH3D_BASEDIR. Set XASH3D_BASEDIR environment variable to override this"

export XASH3D_EXTRAS_PAK1="${APPDIR}"/extras.pak
export LD_LIBRARY_PATH="${APPDIR}":$LD_LIBRARY_PATH
${DEBUGGER} "${APPDIR}"/xash3d "$@"
exit $?
EOF

	chmod +x $APPDIR/xash3d $APPDIR/AppRun # Engine launcher & engine launcher script

	echo "Contents of AppImage: "
	ls -R $APPDIR

	wget "https://raw.githubusercontent.com/FWGS/fwgs-artwork/master/xash3d/icon_512.png" -O $APPDIR/$APP.png

	cat > $APPDIR/$APP.desktop <<EOF
[Desktop Entry]
Name=$APP
Icon=$APP
Type=Application
Exec=AppRun
Categories=Game;
EOF

	wget "https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-$ARCH.AppImage"
	chmod +x appimagetool-$ARCH.AppImage
	./appimagetool-$ARCH.AppImage $APPDIR
}

build_sdl2
build_engine
build_appimage