# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

inherit cmake pam xdg-utils java-pkg-2 java-ant-2 pax-utils qmake-utils vcs-clean

PLUS_PV="$(ver_rs 3 '+')"
MINUS_PV="$(ver_rs 3 '-')"

COMMIT="e7373ef832b49b2a9b88162cfe7eac5f22c40b34"

# TODO
# * use dict from tree, linguas
# * do src_test (use junit from tree?)

GIN_VER=2.1.2
# grep 'PANDOC_VERSION=' dependencies/common/install-pandoc
PANDOC_VER=2.18
# grep -5 QT_CANDIDATES src/cpp/desktop/CMakeLists.txt
QT_VER=5.12.6
QT_SLOT=5

DESCRIPTION="IDE for the R language"
HOMEPAGE="
	https://www.rstudio.org
	https://github.com/rstudio/rstudio/"
SRC_URI="
	https://github.com/rstudio/rstudio/archive/v${PLUS_PV}.tar.gz -> ${P}.tar.gz
	https://s3.amazonaws.com/rstudio-dictionaries/core-dictionaries.zip -> ${PN}-core-dictionaries.zip
	https://src.fedoraproject.org/repo/pkgs/rstudio/panmirror-0.1.0-nm.tgz/sha512/41b48d05ec27571eadbb628f3a0526d1c27c92d9267600fce41915b457aa8fa313cece9b61cfbefb6676074e7713f68b51322321948dbb167757441f3016a080/panmirror-0.1.0-nm.tgz
"

LICENSE="AGPL-3"
SLOT="0"
KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
IUSE="headless server test"
REQUIRED_USE="headless? ( server )"
# The test require an R package to be installed called `testthat`.
# To install using R:
# ```sh
# $ R
# > install.packages("testthat")
# // select a CRAN mirror
# ```
# Using this locally installed "testthat", ezzieyguywuf got the following results
# from the test suite. It's unclear to ezzieyguywuf if the failures are from
# upstream or due to the gentoo packaging.
# [ FAIL 7 | WARN 6 | SKIP 2 | PASS 980 ]
RESTRICT="test"

RDEPEND="
	dev-cpp/websocketpp:=
	dev-cpp/yaml-cpp:=
	dev-db/postgresql:*
	dev-db/sqlite
	dev-java/aopalliance:1
	dev-java/gin:2.1
	dev-java/javax-inject
	=dev-java/validation-api-1.0*:1.0[source]
	dev-lang/R
	dev-libs/boost:=
	>=dev-libs/libfmt-8.1.1:=
	>=dev-libs/mathjax-2.7.4
	dev-libs/soci:=[postgres]
	net-libs/nodejs
	sys-apps/util-linux
	sys-devel/clang:*
	sys-libs/zlib
	sys-process/lsof
	>=virtual/jre-1.8:=
	x11-libs/pango
	!headless? (
		>=dev-qt/qtcore-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtdeclarative-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtdbus-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtgui-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtnetwork-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtopengl-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtpositioning-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtprintsupport-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtsingleapplication-2.6.1_p20150629[X,qt5(+)]
		>=dev-qt/qtsensors-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtsql-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtsvg-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtwebchannel-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtwebengine-${QT_VER}:${QT_SLOT}[widgets]
		>=dev-qt/qtwidgets-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtxml-${QT_VER}:${QT_SLOT}
		>=dev-qt/qtxmlpatterns-${QT_VER}:${QT_SLOT}
		server? ( sys-libs/pam )
	)
	headless? ( sys-libs/pam )
	headless? (
		sys-libs/pam
		acct-user/rstudio-server
		acct-group/rstudio-server
	)
	server? (
		acct-user/rstudio-server
		acct-group/rstudio-server
	)
	dev-libs/openssl:0=
	virtual/pandoc
	"
DEPEND="${RDEPEND}"
BDEPEND="app-arch/unzip
	dev-java/ant-core
	|| ( =virtual/jdk-1.8*:* =virtual/jdk-11*:* )
	|| ( =virtual/jre-1.8*:* =virtual/jre-11*:* )
	virtual/pkgconfig"

PATCHES=(
	"${FILESDIR}"/${PN}-2022.07.2.576-resource-paths.patch
	"${FILESDIR}/"${PN}-2022.07.2.576-ant-system-node.patch
	"${FILESDIR}"/${PN}-2022.07.2.576-cmake-bundled-dependencies.patch
	"${FILESDIR}"/${PN}-1.2.1335-linker_flags.patch
	"${FILESDIR}"/${PN}-2022.07.2.576-qtsingleapplication.patch
	"${FILESDIR}"/${PN}-2022.07.2.576-fmt.patch
	"${FILESDIR}"/${PN}-2022.07.2.576-systemd.patch
	"${FILESDIR}"/${PN}-2022.07.2.576-soci-cmake-find_library.patch
)

S="${WORKDIR}"/${PN}-${MINUS_PV}

rstudio_env() {
	export RSTUDIO_VERSION_MAJOR=$(ver_cut 1)
	export RSTUDIO_VERSION_MINOR=$(ver_cut 2)
	export RSTUDIO_VERSION_PATCH=$(ver_cut 3)
	export RSTUDIO_VERSION_SUFFIX=+$(ver_cut 4)
	export RSTUDIO_GIT_REVISION_HASH=${COMMIT}
	export GIT_COMMIT=${COMMIT}
	export PACKAGE_OS=$(cat /etc/gentoo-release)
}

pkg_pretend() {
	if $(java-pkg_is-vm-version-ge 17); then
		eerror "rstudio requires the system-vm to be set to either 1.8 or 11"
		eerror "during emerge sci-mathematics/rstudio. See:"
		eerror "https://wiki.gentoo.org/wiki/Java#Configuring_the_Java_Virtual_Machine"
		eerror "Supporting building GWT with newer JDKs (e.g. 18) #11242"
		eerror "https://github.com/rstudio/rstudio/issues/11242"
		die
	fi
}

src_unpack() {
	local dict_archive_name="${PN}-core-dictionaries.zip"
	local ARCHIVE=""

	# rstudio's build-system expects these dictionary files to exist, but does
	# not ship them in the release tarball. Therefore, they are fetched in
	# `SRC_URI`, and here we unpack and move them to the correct place.
	for ARCHIVE in ${A}
	do
		if [[ ${ARCHIVE:-${#dict_archive_name}} == "${dict_archive_name}" ]]; then
			# unpack unzips the files as-is, and the zip from upstream isn't in
			# a sub-directory. We'll create a subdirectory and then unpack in
			# there in order to keep track of where these are.
			mkdir "${WORKDIR}/dictionaries" || die
			pushd "${WORKDIR}/dictionaries" > /dev/null || die
			unpack ${ARCHIVE}
			popd > /dev/null || die
		else
			unpack ${ARCHIVE}
		fi
	done
}

src_prepare() {
	cmake_src_prepare
	java-pkg-2_src_prepare
	egit_clean

	mkdir -p "${S}"/src/gwt/panmirror/src/editor/node_modules \
		|| die "Could not create dir src/gwt/panmirror/src/editor/node_modules"
	cp -r "${WORKDIR}"/node_modules_dev/* "${S}"/src/gwt/panmirror/src/editor/node_modules \
	   || die "Could not create copy node_modules_dev/* to src/gwt/panmirror/src/editor/node_modules"
	cp -r "${WORKDIR}"/node_modules_prod/* "${S}"/src/gwt/panmirror/src/editor/node_modules \
	   || die "Could not create copy node_modules_prod/* to src/gwt/panmirror/src/editor/node_modules"

	# Removed bundled libfmt and websocketpp
	rm -rf src/cpp/{fmt,websocketpp} \
		|| die "Could not removed bundled libfmt and websocketpp"

	# move the dictionary files to the expected place
	mkdir -p "${S}/dependencies" || die
	mv "${WORKDIR}/dictionaries" "${S}/dependencies" || die

	# Enable CMake to install our .service file for systemd usage
	mkdir -vp "${S}/src/cpp/server/lib/systemd/system" || die
	cp -v "${FILESDIR}/rstudio-server.service.in" "${S}/src/cpp/server/lib/systemd/system/" || die

	# use mathjax from system
	ln -sf "${EPREFIX}"/usr/share/mathjax dependencies/common/mathjax-27 || die

	# dev-qt/qtsingleapplication-2.6.1_p20150629 does not provide a cmake module.
	# It provides a library that has its version number appended to the end,
	# which is difficult to handle in cmake, as find_library does not support
	# searching for wildcard library names. So I find the library name from the
	# qmake spec, and then sed this into the patched src/cpp/desktop/CMakeLists.txt.
	rm -rf "${S}"/src/cpp/desktop/3rdparty || die
	local s=$(grep '\-lQt$${QT_MAJOR_VERSION}Solutions_SingleApplication' \
				   $(qt5_get_mkspecsdir)/features/qtsingleapplication.prf \
					 | sed -e 's@\$\${QT_MAJOR_VERSION}@5@' \
						   -e 's@LIBS \*= -l@@')
	sed -e "s@Qt5Solutions_SingleApplication-2.6@${s}@g" \
		-i "${S}"/src/cpp/desktop/CMakeLists.txt \
		|| die

	# The git commit for tag: git rev-list -n 1 v${PV}
	sed -e "s@git rev-parse HEAD@echo ${COMMIT}@"\
		-i "${S}"/CMakeLists.txt \
		"${S}"/CMakeGlobals.txt \
		|| die

	# dev-cpp/yaml-cpp-0.7.0-r1 /usr/lib64/cmake/yaml-cpp/yaml-cpp-config.cmake
	# does not set these variables. Workaround error:
	# CMake Error at src/cpp/CMakeLists.txt:222 (message):
	#   yaml-cpp not found (re-run dependencies script to install)
	sed -e "s@find_package(yaml-cpp REQUIRED)@set(YAML_CPP_INCLUDE_DIR \"${EPREFIX}/usr/include/yaml-cpp\")\n   set(YAML_CPP_LIBRARIES \"${EPREFIX}/usr/$(get_libdir)/libyaml-cpp.so\")@" \
		-i src/cpp/CMakeLists.txt \
		|| die "Could not set YAML_CPP_INCLUDE_DIR and YAML_CPP_LIBRARIES in src/cpp/CMakeLists.txt"
}

src_configure() {
	rstudio_env

	local mycmakeargs=(
		-DRSTUDIO_INSTALL_SUPPORTING="${EPREFIX}"/usr/share/${PN}
		-DCMAKE_INSTALL_PREFIX="${EPREFIX}"/usr/$(get_libdir)/${PN}
		-DRSTUDIO_TARGET=$(usex headless "Server" "$(usex server "Development" "Desktop")")
		-DRSTUDIO_DESKTOP=TRUE
		-DCMAKE_BUILD_TYPE=Release
		-DRSTUDIO_UNIT_TESTS_DISABLED=$(usex test OFF ON)
		-DRSTUDIO_VERIFY_R_VERSION=OFF
		-DRSTUDIO_USE_SYSTEM_BOOST=ON
		-DRSTUDIO_USE_SYSTEM_FMT=ON
		-DRSTUDIO_USE_SYSTEM_SOCI=ON
		-DRSTUDIO_USE_SYSTEM_YAML_CPP=ON
		-DRSTUDIO_BUNDLE_QT=OFF
		-DGWT_BUILD=OFF
		-DGWT_COPY=ON
		-DQUARTO_ENABLED=OFF
		)

	if use !headless; then
		mycmakeargs+=(
			-DRSTUDIO_INSTALL_FREEDESKTOP="$(usex !headless "ON" "OFF")"
			-DQT_QMAKE_EXECUTABLE=$(qt5_get_bindir)/qmake
		)
	fi
	cmake_src_configure
}

src_compile() {
	rstudio_env
	export EANT_BUILD_XML="src/gwt/build.xml"
	export EANT_BUILD_TARGET="build"
	# Avoid the rest of the oracle-jdk-bin-1.8.0.60 sandbox violations F: mkdir S: deny
	# P: /root/.oracle_jre_usage.
	export ANT_OPTS="-Duser.home=${T} -Djava.util.prefs.userRoot=${T}"
	# Avoid: [exec] Error: You must provide the URL of lib/mappings.wasm by calling SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) before using SourceMapConsumer
	export NODE_OPTIONS="--no-experimental-fetch"

	# FIXME: isn't there a variable we can use in one of the java eclasses that
	# will take care of some of the dependency and path stuff for us?
	local eant_extra_args=(
		# These are from src/gwt/CMakeLists.txt, grep if(GWT_BUILD)
		-Dbuild.dir="bin"
		-Dwww.dir="www"
		-Dextras.dir="extras"
		-Dlib.dir="lib"
		-Dgwt.main.module="org.rstudio.studio.RStudio"
		-Dnode.bin="${EPREFIX}/usr/bin/node"
		-Daopalliance.sdk="${EPREFIX}/usr/share/aopalliance-1/lib"
		-Dgin.sdk="${EPREFIX}/usr/share/gin-2.1/lib"
		-Djavax.inject="${EPREFIX}/usr/share/javax-inject/lib"
		-Dvalidation.api="${EPREFIX}/usr/share/validation-api-1.0/lib"
		-Dvalidation.api.sources="${EPREFIX}/usr/share/validation-api-1.0/sources"
		-DlocalWorkers=$(makeopts_jobs)
	)

	local EANT_EXTRA_ARGS="${eant_extra_args[@]}"
	[[ $(java-pkg_is-vm-version-ge 11) ]] && local JAVA_PKG_WANT_SOURCE="11" || local JAVA_PKG_WANT_SOURCE="8"
	local JAVA_PKG_WANT_TARGET=${JAVA_PKG_WANT_SOURCE}
	java-pkg-2_src_compile

	cmake_src_compile
}

src_install() {
	rstudio_env
	export ANT_OPTS="-Duser.home=${T} -Djava.util.prefs.userRoot=${T}"
	cmake_src_install
	dosym ../$(get_libdir)/${PN}/bin/rstudio /usr/bin/rstudio
	dosym ../../../share/rstudio/resources /usr/$(get_libdir)/${PN}/bin/resources
	use headless || pax-mark m "${ED}/usr/$(get_libdir)/${PN}/rstudio"
	doconfd "${FILESDIR}"/rstudio-server.conf
	insinto /etc/rstudio
	doins "${FILESDIR}"/rsession.conf
	dosym ../conf.d/rstudio-server.conf /etc/rstudio/rserver.conf
	if use headless || use server; then
		dopamd src/cpp/server/extras/pam/rstudio
		newinitd "${FILESDIR}"/rstudio-server.initd rstudio-server
	fi
}

src_test() {
	# There is a gwt test suite, but it seems to require network access
	# export EANT_TEST_TARGET="unittest"
	# java-pkg-2_src_test

	mkdir -p ${HOME}/.local/share/rstudio || die
	cd "${BUILD_DIR}"/src/cpp || die
	./rstudio-tests || die
}

pkg_preinst() {
	java-pkg-2_pkg_preinst
}

pkg_postinst() {
	use headless || { xdg_desktop_database_update
		xdg_mimeinfo_database_update
		xdg_icon_cache_update ;}
}

pkg_postrm() {
	use headless || { xdg_desktop_database_update
		xdg_mimeinfo_database_update
		xdg_icon_cache_update ;}
}