# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

PYTHON_COMPAT=( python3_{10..13} )
DOCS_BUILDER="doxygen"
DOCS_DEPEND="
	dev-texlive/texlive-bibtexextra
	dev-texlive/texlive-fontsextra
	dev-texlive/texlive-fontutils
	dev-texlive/texlive-latex
	dev-texlive/texlive-latexextra
"
inherit python-single-r1 docs autotools

MY_PV=$(ver_cut 1-3)
MY_PF=LHAPDF-${MY_PV}

DESCRIPTION="Les Houches Parton Density Function unified library"
HOMEPAGE="https://lhapdf.hepforge.org/"

if [[ ${PV} == 9999 ]]; then
	inherit git-r3
	EGIT_REPO_URI="https://gitlab.com/hepcedar/lhapdf"
else
	SRC_URI="https://www.hepforge.org/downloads/lhapdf/${MY_PF}.tar.gz -> ${P}.tar.gz"
	S="${WORKDIR}/${MY_PF}"
	KEYWORDS="~amd64"
fi

LICENSE="GPL-2"
SLOT="0"
IUSE="examples +python"
REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"

RDEPEND="python? ( ${PYTHON_DEPS} )"
DEPEND="${RDEPEND}"
BDEPEND="
	python? (
		$(python_gen_cond_dep '
			>=dev-python/cython-0.19[${PYTHON_USEDEP}]
		')
	)
"

PATCHES=(
	"${FILESDIR}"/${P}-include-cstdint.patch # https://gitlab.com/hepcedar/lhapdf/-/merge_requests/87
	"${FILESDIR}"/${P}-cxxflags.patch # https://gitlab.com/hepcedar/lhapdf/-/merge_requests/87
)

pkg_setup() {
	use python && python-single-r1_pkg_setup
}

src_prepare() {
	default
	# Let cython reproduce this for more recent python versions
	rm wrappers/python/lhapdf.cpp || die
	eautoreconf
}

src_configure() {
	local -x CONFIG_SHELL="${EPREFIX}/bin/bash"
	econf \
		--disable-static \
		$(use_enable python)
}

src_compile() {
	emake all $(use doc && echo doxy)
}

src_test() {
	emake -C tests
}

src_install() {
	default
	use doc && dodoc -r doc/doxygen/.
	use examples && dodoc examples/*.cc

	use python && python_optimize

	find "${ED}" -name '*.la' -delete || die
}