# Copyright 1999-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

PYTHON_COMPAT=( python3_{9,10,11} )

inherit desktop flag-o-matic python-any-r1 readme.gentoo-r1 toolchain-funcs xdg

DESCRIPTION="MSX emulator that aims for perfection"
HOMEPAGE="https://openmsx.org/"
SRC_URI="https://github.com/openMSX/openMSX/releases/download/RELEASE_${PV//./_}/${P}.tar.gz"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="+joystick"

RDEPEND="dev-lang/tcl:0=
	media-libs/alsa-lib
	media-libs/harfbuzz:=
	media-libs/libogg
	media-libs/libpng:0=
	media-libs/libsdl2[joystick=,sound,video]
	media-libs/libtheora
	media-libs/libvorbis
	media-libs/sdl2-ttf
	>=media-libs/glew-1.3.2:0=
	sys-libs/zlib
	virtual/opengl"
DEPEND="${RDEPEND}"
BDEPEND="${PYTHON_DEPS}"

DOC_CONTENTS="
If you want to if you want to emulate real MSX systems and not
only the free C-BIOS machines, put the system ROMs in one of
the following directories: /usr/share/${PN}/systemroms
or ~/.openMSX/share/systemroms
"

PATCHES=(
	"${FILESDIR}/${P}-add-ctime.patch"
	"${FILESDIR}/${P}-gcc13.patch"
)

src_prepare() {
	default
	sed -i \
		-e '/^LDFLAGS:=/d' \
		-e '/LINK_FLAGS_PREFIX/d' \
		-e '/LINK_FLAGS+=/s/-s//' \
		-e '/LINK_FLAGS+=\$(TARGET_FLAGS)/s/$/ $(LDFLAGS)/' \
		build/main.mk \
		|| die
	sed -i -e '/SYMLINK/s:true:false:' build/custom.mk || die
	sed -i -e 's/GPL.txt//' doc/node.mk || die

	# Build system only configured to use bundled version - but not from the
	# directory it's distributed in
	cp "${S}/Contrib/catch2/catch.hpp" "${S}/src/unittest" || die
}

src_configure() {
	tc-export CXX

	# Doesn't compile without this, and build system doesn't consistently add
	# it properly for all compilers
	append-cxxflags '-std=c++17'

	default
}

src_compile() {
	emake \
		CXXFLAGS="${CXXFLAGS}" \
		INSTALL_SHARE_DIR="${EPREFIX}/usr/share/${PN}" \
		V=1
}

src_test() {
	# To get tests, we need to build with OPENMSX_FLAVOUR=unittest and then the
	# build is stored in a directory of the pattern
	# ${WORKDIR}/derived/*-unittest/. This is separate from the actual build,
	# stored in ${WORKDIR}/derived/*-opt. The unittest binary and the workdir
	# binary are in each of these directories under their `bin` directories.
	emake \
		V=1 \
		CXXFLAGS="${CXXFLAGS}" \
		OPENMSX_FLAVOUR=unittest

	# There will only ever be one *-unittest directory
	"${S}"/derived/*-unittest/bin/openmsx || die
}

src_install() {
	# To guarantee installing the proper binary in case tests were built,
	# specify the default OPENMSX_FLAVOUR
	emake \
		V=1 \
		INSTALL_BINARY_DIR="${ED}/usr/bin" \
		INSTALL_SHARE_DIR="${ED}/usr/share/${PN}" \
		INSTALL_DOC_DIR="${ED}/usr/share/doc/${PF}" \
		OPENMSX_FLAVOUR=opt \
		install

	einstalldocs
	readme.gentoo_create_doc

	for i in 16 32 48 64 128 256 ; do
		newicon -s "${i}" "share/icons/openMSX-logo-${i}.png" "${PN}.png"
	done
	make_desktop_entry "${PN}" "openMSX"
}

pkg_postinst() {
	readme.gentoo_print_elog
	xdg_pkg_postinst
}