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

EAPI=8

inherit cmake-multilib flag-o-matic

# Make sure that test data are not newer than release;
# otherwise we will see "Found-But-No-Test" test failures!
#
# To update: Go to https://github.com/uclouvain/openjpeg-data and grab the hash
# of the latest possible commit whose commit date is older than the release
# date.
MY_TESTDATA_COMMIT="39524bd3a601d90ed8e0177559400d23945f96a9"

DESCRIPTION="Open-source JPEG 2000 library"
HOMEPAGE="https://www.openjpeg.org"
SRC_URI="https://github.com/uclouvain/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz
	test? ( https://github.com/uclouvain/openjpeg-data/archive/${MY_TESTDATA_COMMIT}.tar.gz -> ${PN}-data_20241113.tar.gz )"

LICENSE="BSD-2"
SLOT="2/7" # based on SONAME
KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
IUSE="doc test"
RESTRICT="!test? ( test )"

RDEPEND="
	media-libs/lcms:2
	media-libs/libpng:0=
	media-libs/tiff:=
	sys-libs/zlib:=
"
DEPEND="${RDEPEND}"
BDEPEND="doc? ( app-text/doxygen )"

DOCS=( AUTHORS.md CHANGELOG.md NEWS.md README.md THANKS.md )

src_prepare() {
	if use test; then
		mv "${WORKDIR}"/openjpeg-data-${MY_TESTDATA_COMMIT} "${WORKDIR}"/data ||
			die "Failed to rename test data"
	fi

	cmake_src_prepare
}

multilib_src_configure() {
	append-lfs-flags

	local mycmakeargs=(
		-DBUILD_TESTING="$(multilib_native_usex test)"
		-DBUILD_DOC=$(multilib_native_usex doc ON OFF)
		-DBUILD_CODEC=$(multilib_is_native_abi && echo ON || echo OFF)
		-DBUILD_STATIC_LIBS=OFF
	)

	# Cheat a little bit and force disabling fixed point magic
	# The test suite is extremely fragile to small changes
	# bug #715130, bug #715422
	# https://github.com/uclouvain/openjpeg/issues/1017
	if multilib_is_native_abi && use test ; then
		append-cflags "-ffp-contract=off"
	fi

	cmake_src_configure
}

multilib_src_test() {
	if ! multilib_is_native_abi ; then
		elog "Cannot run tests for non-multilib abi."
		return 0
	fi

	pushd "${BUILD_DIR}" > /dev/null || die
	[[ -e CTestTestfile.cmake ]] || die "Test suite not available! Check source!"

	elog "Note: Upstream maintains a list of known test failures."
	elog "We collect all the known failures and skip them."
	elog

	local toskip=( "${S}"/tools/travis-ci/knownfailures-all.txt )
	if use amd64 ; then
		toskip+=( "${S}"/tools/travis-ci/knownfailures-*x86_64*.txt )
	elif use x86 || use arm || use arm64; then
		toskip+=( "${S}"/tools/travis-ci/knownfailures-*i386*.txt )
	fi

	local exp=$(sort "${toskip[@]}" | uniq | tr '\n' '|'; assert)
	popd > /dev/null || die

	local myctestargs=()
	if [[ -n ${TEST_VERBOSE} ]]; then
		myctestargs+=( --extra-verbose --output-on-failure )
	fi
	myctestargs+=( -E "(${exp::-1})" )

	cmake_src_test
}