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

EAPI=8

inherit autotools flag-o-matic fortran-2 java-pkg-opt-2 pax-utils qmake-utils toolchain-funcs xdg

DESCRIPTION="High-level interactive language for numerical computations"
HOMEPAGE="https://www.gnu.org/software/octave/"
SRC_URI="mirror://gnu/${PN}/${P}.tar.xz"

LICENSE="GPL-3"
SLOT="0/${PV}"
KEYWORDS="~amd64 ~arm ~arm64 ~hppa ~ppc ~ppc64 ~riscv ~x86 ~amd64-linux ~x86-linux"

IUSE="curl doc fftw +glpk gnuplot gui hdf5 imagemagick java json klu portaudio postscript +qhull +qrupdate readline sndfile +sparse spqr ssl sundials zlib"

# Although it is listed in INSTALL.OCTAVE as a build tool, Octave runs
# "makeinfo" from sys-apps/texinfo at runtime to convert its texinfo
# documentation to text (see scripts/help/help.m).
#
# (un)zip isn't mentioned, but there's a test that uses it (bug #775254).
#
# The use of USE=imagemagick to pull in media-gfx/graphicsmagick is not
# ideal, but both "graphicsmagick" and "imagemagick" are global USE
# flags whose existing descriptions conflict with the obvious way we
# would want to use them in octave. In any case, upstream doesn't really
# support imagemagick, only graphicsmagick (bug 864785).
COMMON_DEPS="
	app-arch/bzip2
	app-arch/unzip
	app-arch/zip
	app-text/ghostscript-gpl
	sys-apps/texinfo
	dev-libs/libpcre2
	sys-libs/ncurses:=
	sys-libs/zlib
	virtual/blas
	virtual/lapack
	curl? ( net-misc/curl:= )
	fftw? ( sci-libs/fftw:3.0= )
	glpk? ( sci-mathematics/glpk:= )
	gnuplot? ( sci-visualization/gnuplot )
	hdf5? ( sci-libs/hdf5:= )
	imagemagick? ( media-gfx/graphicsmagick:=[cxx] )
	json? ( dev-libs/rapidjson )
	klu? ( sci-libs/klu:= )
	portaudio? ( media-libs/portaudio )
	postscript? (
		app-text/epstool
		media-gfx/pstoedit
		>=media-gfx/fig2dev-3.2.9-r1
	)
	gui? (
		dev-qt/qtbase:6[gui,opengl,network,widgets]
		media-libs/fontconfig:=
		media-libs/freetype:=
		virtual/glu
		x11-libs/gl2ps:=
		x11-libs/libX11:=
		x11-libs/qscintilla:=[qt6]
	)
	qhull? ( media-libs/qhull:= )
	qrupdate? ( sci-libs/qrupdate:= )
	readline? ( sys-libs/readline:= )
	sndfile? ( media-libs/libsndfile )
	sparse? (
		sci-libs/arpack:=
		sci-libs/camd:=
		sci-libs/ccolamd:=
		sci-libs/cholmod:=
		sci-libs/colamd:=
		sci-libs/cxsparse:=
		sci-libs/umfpack:=
	)
	spqr? ( sci-libs/spqr:= )
	ssl? (
		dev-libs/openssl:=
	)
	sundials? (
		klu? ( >=sci-libs/sundials-4:=[sparse] )
		!klu? ( >=sci-libs/sundials-4:= )
	)
"
RDEPEND="${COMMON_DEPS}
	java? ( >=virtual/jre-1.8:* )"
DEPEND="${COMMON_DEPS}
	java? ( >=virtual/jdk-1.8:* )"
BDEPEND="
	dev-util/gperf
	virtual/pkgconfig
	doc? (
		dev-texlive/texlive-fontsrecommended
		dev-texlive/texlive-plaingeneric
		dev-texlive/texlive-metapost
		virtual/latex-base
	)
	gui? ( dev-qt/qttools:6[linguist] )
	qrupdate? ( app-misc/pax-utils )
	sparse? ( app-misc/pax-utils )
"

PATCHES=(
	"${FILESDIR}"/${PN}-5.1.0-pkgbuilddir.patch
)

src_prepare() {
	default

	# occasional fail on install, force regeneration (bug #401189)
	rm doc/interpreter/contributors.texi || die

	eautoreconf
}

src_configure() {
	# libstdc++ bug, bug #887815
	append-cxxflags -U_GLIBCXX_ASSERTIONS

	# Unfortunate dependency on mpi from hdf5 (bug #302621)
	use hdf5 && has_version sci-libs/hdf5[mpi] && \
		export CXX=mpicxx CC=mpicc FC=mpif77 F77=mpif77

	# Some of these use_with flags are a bit mismatched. The configure
	# script offers only --without-foo, and detects "foo" automatically
	# unless --without-foo is specified. Passing --with-foo is not an
	# error, however, so it kind of works. We wind up with, for example,
	#
	# --with-sundials_ida (no-op) with USE="sundials"
	# --without-sundials_ida (disables it) with USE="-sundials"
	#
	local myeconfargs=(
		--localstatedir="${EPREFIX}/var/state/octave"
		--with-blas="$($(tc-getPKG_CONFIG) --libs blas)"
		--with-lapack="$($(tc-getPKG_CONFIG) --libs lapack)"
		--disable-64
		--enable-shared
		--with-z
		--with-bz2
		--without-fltk

		# bug #901965
		--without-libiconv-prefix
		--without-libreadline-prefix

		$(use_enable doc docs)
		$(use_enable java)
		$(use_enable json rapidjson)
		$(use_enable readline)
		$(use_with curl)
		$(use_with fftw fftw3)
		$(use_with fftw fftw3f)
		$(use_enable fftw fftw-threads)
		$(use_with glpk)
		$(use_with gui opengl)
		$(use_with gui qt 6)
		$(use_with gui x)
		$(use_with hdf5)
		$(use_with imagemagick magick GraphicsMagick++)
		$(use_with klu)
		$(use_with portaudio)
		$(use_with qhull qhull_r)
		$(use_with qrupdate)
		$(use_with sndfile)
		$(use_with sparse arpack)
		$(use_with sparse umfpack)
		$(use_with sparse colamd)
		$(use_with sparse ccolamd)
		$(use_with sparse cholmod)
		$(use_with sparse cxsparse)
		$(use_with spqr)
		$(use_with ssl openssl)
		$(use_with sundials sundials_ida)
		$(use_with sundials sundials_nvecserial)
	)

	# Tell autoconf where to find qt binaries, fix bug #837752
	if use gui ; then
		export MOC="$(qt6_get_bindir)/../libexec/moc" \
			UIC="$(qt6_get_bindir)/../libexec/uic" \
			RCC="$(qt6_get_bindir)/../libexec/rcc" \
			LRELEASE="$(qt6_get_bindir)/lrelease" \
			QHELPGENERATOR="$(qt6_get_bindir)/../libexec/qhelpgenerator"
	fi

	econf "${myeconfargs[@]}"
}

src_compile() {
	# Otherwise it will write to /var/cache/fonts/ and trip sandbox
	export VARTEXFONTS="${T}/fonts"

	default

	if use java; then
		pax-mark m "${S}/src/.libs/octave-cli"
	fi
}

src_install() {
	default

	if use doc; then
		dodoc $(find doc -name '*.pdf')
	else
		# bug #566134, macros.texi is installed by make install if use doc
		insinto /usr/share/${PN}/${PV}/etc
		doins doc/interpreter/macros.texi
	fi

	use java && \
		java-pkg_regjar "${ED}/usr/share/${PN}/${PV}/m/java/octave.jar"

	echo "LDPATH=${EPREFIX}/usr/$(get_libdir)/${PN}/${PV}" > 99octave || die
	doenvd 99octave

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