# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=5

WX_GTK_VER="3.0"
PYTHON_COMPAT=( python2_7 )

inherit cmake-utils eutils python-r1 wxwidgets toolchain-funcs virtualx

DESCRIPTION="GNU Data Language"
HOMEPAGE="https://github.com/gnudatalanguage/gdl"
SRC_URI="mirror://sourceforge/gnudatalanguage/${P}v2.tgz"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
IUSE="+eigen fftw graphicsmagick gshhs hdf hdf5 +imagemagick netcdf openmp
	  png proj postscript python static-libs udunits wxwidgets"

RDEPEND="
	dev-cpp/antlr-cpp:2=
	sci-libs/gsl:0=
	sci-libs/plplot:0=[-dynamic]
	sys-libs/ncurses:0=
	sys-libs/readline:0=
	sys-libs/zlib:0=
	x11-libs/libX11:0=
	fftw? ( sci-libs/fftw:3.0= )
	gshhs? ( sci-geosciences/gshhs-data sci-geosciences/gshhs:0= )
	hdf? ( sci-libs/hdf:0= )
	hdf5? ( sci-libs/hdf5:0= )
	imagemagick? (
		!graphicsmagick? ( media-gfx/imagemagick:=[cxx] )
		graphicsmagick? ( media-gfx/graphicsmagick:=[cxx] )
	)
	netcdf? ( sci-libs/netcdf )
	proj? ( sci-libs/proj )
	postscript? ( dev-libs/pslib )
	python? (
		${PYTHON_DEPS}
		|| (
			dev-python/numpy-python2[${PYTHON_USEDEP}]
			dev-python/numpy[${PYTHON_USEDEP}]
		)
	)
	udunits? ( sci-libs/udunits )
	wxwidgets? ( x11-libs/wxGTK:${WX_GTK_VER}[X] )"
DEPEND="${RDEPEND}
	dev-java/antlr:0[java(+),script(+)]
	virtual/pkgconfig
	eigen? ( dev-cpp/eigen:3 )"

REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"

PATCHES=(
	"${FILESDIR}"/0.9.2-include.patch
	"${FILESDIR}"/0.9.5-antlr.patch
	"${FILESDIR}"/0.9.5-png.patch
	"${FILESDIR}"/0.9.6-fix-file-move.patch
	"${FILESDIR}"/0.9.6-fix-python-function-call.patch
	"${FILESDIR}"/0.9.6-fun-fix.patch
	"${FILESDIR}"/0.9.6-python-use-path-and-startup.patch
	"${FILESDIR}"/0.9.6-disable-tests-hanging-under-xvfb-run.patch
	"${FILESDIR}"/0.9.6-gcc6.patch
	"${FILESDIR}"/0.9.6-formats.patch
)

pkg_pretend() {
	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
}

pkg_setup() {
	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
}

src_prepare() {
	use wxwidgets && need-wxwidgets unicode
	use hdf5 && has_version sci-libs/hdf5[mpi] && export CXX=mpicxx

	# make sure antlr includes are from system and rebuild the sources with it
	# https://sourceforge.net/p/gnudatalanguage/patches/39/
	rm -r src/antlr || die
	einfo "Regenerating grammar"
	pushd src >/dev/null || die
	local i
	for i in *.g; do
		antlr ${i} || die
	done
	popd >/dev/null || die

	# gentoo: avoid install files in datadir directory
	# and manually install them in src_install
	sed -e '/AUTHORS/d' -i CMakeLists.txt || die
	cmake-utils_src_prepare
}

src_configure() {
	# MPI is still very buggy
	# x11=off does not compile
	local mycmakeargs=(
		-DMPICH=OFF
		-DBUNDLED_ANTLR=OFF
		-DX11=ON
		-DEIGEN3="$(usex eigen)"
		-DFFTW="$(usex fftw)"
		-DGRIB=OFF
		-DGSHHS="$(usex gshhs)"
		-DHDF="$(usex hdf)"
		-DHDF5="$(usex hdf5)"
		-DLIBPROJ4="$(usex proj)"
		-DNETCDF="$(usex netcdf)"
		-DOPENMP="$(usex openmp)"
		-DPNGLIB="$(usex png)"
		-DPSLIB="$(usex postscript)"
		-DUDUNITS="$(usex udunits)"
		-DWXWIDGETS="$(usex wxwidgets)"
	)

	if use imagemagick; then
		if use graphicsmagick; then
			mycmakeargs+=( -DGRAPHICSMAGICK=ON -DMAGICK=OFF )
		else
			mycmakeargs+=( -DGRAPHICSMAGICK=OFF -DMAGICK=ON )
		fi
	else
		mycmakeargs+=( -DGRAPHICSMAGICK=OFF -DMAGICK=OFF )
	fi

	configuration() {
		mycmakeargs+=( $@ )
		cmake-utils_src_configure
	}
	configuration -DPYTHON_MODULE=OFF -DPYTHON=OFF
	use python && python_foreach_impl configuration -DPYTHON_MODULE=ON -DPYTHON=ON
}

src_compile() {
	cmake-utils_src_compile
	use python && python_foreach_impl cmake-utils_src_make
}

src_test() {
	# there is check target instead of the ctest to define some LDPATH
	virtx emake -C "${BUILD_DIR}" check
}

src_install() {
	cmake-utils_src_install
	if use python; then
		installation() {
			mv src/libgdl.so GDL.so || die
			python_domodule GDL.so
		}
		python_foreach_impl run_in_build_dir installation
		dodoc PYTHON.txt
	fi
	#dodoc AUTHORS README
	echo "GDL_PATH=\"+${EPREFIX}/usr/share/gnudatalanguage\"" > 50gdl || die
	doenvd 50gdl
}