# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7
LLVM_MAX_SLOT=10
PLOCALES="cs da de fr ja pl ru sl uk zh-CN zh-TW"

inherit llvm qmake-utils virtualx xdg

DESCRIPTION="Lightweight IDE for C++/QML development centering around Qt"
HOMEPAGE="https://doc.qt.io/qtcreator/"
LICENSE="GPL-3"
SLOT="0"

if [[ ${PV} == *9999 ]]; then
	inherit git-r3
	EGIT_REPO_URI="https://code.qt.io/${PN}/${PN}.git"
else
	MY_PV=${PV/_/-}
	MY_P=${PN}-opensource-src-${MY_PV}
	[[ ${MY_PV} == ${PV} ]] && MY_REL=official || MY_REL=development
	SRC_URI="https://download.qt.io/${MY_REL}_releases/${PN/-}/$(ver_cut 1-2)/${MY_PV}/${MY_P}.tar.xz"
	KEYWORDS="~amd64 ~arm ~x86"
	S=${WORKDIR}/${MY_P}
fi

# TODO: unbundle sqlite

QTC_PLUGINS=(android +autotest baremetal beautifier boot2qt
	'+clang:clangcodemodel|clangformat|clangpchmanager|clangrefactoring|clangtools' clearcase
	cmake:cmakeprojectmanager cppcheck ctfvisualizer cvs +designer git glsl:glsleditor +help ios
	lsp:languageclient mcu:mcusupport mercurial modeling:modeleditor nim perforce perfprofiler python
	qbs:qbsprojectmanager +qmldesigner qmlprofiler qnx remotelinux scxml:scxmleditor serialterminal
	silversearcher subversion valgrind webassembly winrt)
IUSE="doc systemd test +webengine ${QTC_PLUGINS[@]%:*}"
RESTRICT="!test? ( test )"
REQUIRED_USE="
	boot2qt? ( remotelinux )
	clang? ( test? ( qbs ) )
	mcu? ( cmake )
	python? ( lsp )
	qnx? ( remotelinux )
"

# minimum Qt version required
QT_PV="5.12.3:5"

BDEPEND="
	>=dev-qt/linguist-tools-${QT_PV}
	virtual/pkgconfig
	doc? ( >=dev-qt/qdoc-${QT_PV} )
"
CDEPEND="
	>=dev-cpp/yaml-cpp-0.6.2:=
	>=dev-qt/qtconcurrent-${QT_PV}
	>=dev-qt/qtcore-${QT_PV}
	>=dev-qt/qtdeclarative-${QT_PV}[widgets]
	>=dev-qt/qtgui-${QT_PV}
	>=dev-qt/qtnetwork-${QT_PV}[ssl]
	>=dev-qt/qtprintsupport-${QT_PV}
	>=dev-qt/qtquickcontrols-${QT_PV}
	>=dev-qt/qtscript-${QT_PV}
	>=dev-qt/qtsql-${QT_PV}[sqlite]
	>=dev-qt/qtsvg-${QT_PV}
	>=dev-qt/qtwidgets-${QT_PV}
	>=dev-qt/qtx11extras-${QT_PV}
	>=dev-qt/qtxml-${QT_PV}
	kde-frameworks/syntax-highlighting:5
	clang? (
		|| (
			( sys-devel/clang:10
				dev-libs/libclangformat-ide:10 )
			( sys-devel/clang:9
				dev-libs/libclangformat-ide:9 )
		)
		<sys-devel/clang-$((LLVM_MAX_SLOT + 1)):=
	)
	designer? ( >=dev-qt/designer-${QT_PV} )
	help? (
		>=dev-qt/qthelp-${QT_PV}
		webengine? ( >=dev-qt/qtwebengine-${QT_PV}[widgets] )
	)
	perfprofiler? ( dev-libs/elfutils )
	qbs? ( >=dev-util/qbs-1.13.1 )
	serialterminal? ( >=dev-qt/qtserialport-${QT_PV} )
	systemd? ( sys-apps/systemd:= )
"
DEPEND="${CDEPEND}
	test? (
		>=dev-qt/qtdeclarative-${QT_PV}[localstorage]
		>=dev-qt/qtquickcontrols2-${QT_PV}
		>=dev-qt/qttest-${QT_PV}
		>=dev-qt/qtxmlpatterns-${QT_PV}[qml]
	)
"
RDEPEND="${CDEPEND}
	sys-devel/gdb[python]
	cmake? ( dev-util/cmake )
	cppcheck? ( dev-util/cppcheck )
	cvs? ( dev-vcs/cvs )
	git? ( dev-vcs/git )
	mercurial? ( dev-vcs/mercurial )
	qmldesigner? ( >=dev-qt/qtquicktimeline-${QT_PV} )
	silversearcher? ( sys-apps/the_silver_searcher )
	subversion? ( dev-vcs/subversion )
	valgrind? ( dev-util/valgrind )
"
# qt translations must also be installed or qt-creator translations won't be loaded
for x in ${PLOCALES}; do
	IUSE+=" l10n_${x}"
	RDEPEND+=" l10n_${x}? ( >=dev-qt/qttranslations-${QT_PV} )"
done
unset x

PATCHES=(
	"${FILESDIR}"/${PN}-4.12.0-dylib-fix.patch
	"${FILESDIR}"/${PN}-4.12.0-libclangformat-ide.patch
)

llvm_check_deps() {
	has_version -d "sys-devel/clang:${LLVM_SLOT}" && \
		has_version -d "dev-libs/libclangformat-ide:${LLVM_SLOT}"
}

pkg_setup() {
	use clang && llvm_pkg_setup
}

src_prepare() {
	default

	# disable unwanted plugins
	for plugin in "${QTC_PLUGINS[@]#[+-]}"; do
		if ! use ${plugin%:*}; then
			einfo "Disabling ${plugin%:*} plugin"
			sed -i -re "s/(^\s+|\s*SUBDIRS\s*\+=.*)\<(${plugin#*:})\>(.*)/\1\3/" \
				src/plugins/plugins.pro || die "failed to disable ${plugin%:*} plugin"
		fi
	done
	sed -i -e '/updateinfo/d' src/plugins/plugins.pro || die

	# avoid building unused support libraries and tools
	if ! use clang; then
		sed -i -e '/clangsupport/d' src/libs/libs.pro || die
		sed -i -e '/clang\(\|pchmanager\|refactoring\)backend/d' src/tools/tools.pro || die
	fi
	if ! use glsl; then
		sed -i -e '/glsl/d' src/libs/libs.pro || die
	fi
	if ! use lsp; then
		sed -i -e '/languageserverprotocol/d' src/libs/libs.pro tests/auto/auto.pro || die
	fi
	if ! use modeling; then
		sed -i -e '/modelinglib/d' src/libs/libs.pro || die
	fi
	if ! use perfprofiler; then
		rm -r src/tools/perfparser || die
		if ! use ctfvisualizer && ! use qmlprofiler; then
			sed -i -e '/tracing/d' src/libs/libs.pro tests/auto/auto.pro || die
		fi
	fi
	if ! use qmldesigner; then
		sed -i -e '/qml2puppet/d' src/tools/tools.pro || die
		sed -i -e '/qmldesigner/d' tests/auto/qml/qml.pro || die
	fi
	if ! use valgrind; then
		sed -i -e '/valgrindfake/d' src/tools/tools.pro || die
		sed -i -e '/valgrind/d' tests/auto/auto.pro || die
	fi

	# automagic dep on qtwebengine
	if ! use webengine; then
		sed -i -e 's/isEmpty(QT\.webenginewidgets\.name)/true/' src/plugins/help/help.pro || die
	fi

	# disable broken or unreliable tests
	sed -i -e 's/\(manual\|tools\|unit\)//g' tests/tests.pro || die
	sed -i -e '/\(dumpers\|namedemangler\)\.pro/d' tests/auto/debugger/debugger.pro || die
	sed -i -e '/CONFIG -=/s/$/ testcase/' tests/auto/extensionsystem/pluginmanager/correctplugins1/plugin?/plugin?.pro || die
	sed -i -e 's/\<check\>//' tests/auto/qml/codemodel/codemodel.pro || die

	# do not install test binaries
	sed -i -e '/CONFIG +=/s/$/ no_testcase_installs/' tests/auto/{qttest.pri,json/json.pro} || die

	# fix path to some clang headers
	sed -i -e "/^CLANG_RESOURCE_DIR\s*=/s:\$\${LLVM_LIBDIR}:${EPREFIX}/usr/lib:" src/shared/clang/clang_defines.pri || die

	# fix translations
	local lang languages=
	for lang in ${PLOCALES}; do
		use l10n_${lang} && languages+=" ${lang/-/_}"
	done
	sed -i -e "/^LANGUAGES\s*=/s:=.*:=${languages}:" share/qtcreator/translations/translations.pro || die

	# remove bundled syntax-highlighting
	rm -r src/libs/3rdparty/syntax-highlighting || die

	# remove bundled yaml-cpp
	rm -r src/libs/3rdparty/yaml-cpp || die

	# remove bundled qbs
	rm -r src/shared/qbs || die
}

src_configure() {
	eqmake5 IDE_LIBRARY_BASENAME="$(get_libdir)" \
		IDE_PACKAGE_MODE=1 \
		KSYNTAXHIGHLIGHTING_LIB_DIR="${EPREFIX}/usr/$(get_libdir)" \
		KSYNTAXHIGHLIGHTING_INCLUDE_DIR="${EPREFIX}/usr/include/KF5/KSyntaxHighlighting" \
		$(use clang && echo LLVM_INSTALL_DIR="$(get_llvm_prefix ${LLVM_MAX_SLOT})") \
		$(use qbs && echo QBS_INSTALL_DIR="${EPREFIX}/usr") \
		CONFIG+=qbs_disable_rpath \
		CONFIG+=qbs_enable_project_file_updates \
		$(use systemd && echo CONFIG+=journald) \
		$(use test && echo BUILD_TESTS=1)
}

src_test() {
	cd tests/auto && virtx default
}

src_install() {
	emake INSTALL_ROOT="${ED}/usr" install

	dodoc dist/{changes-*,known-issues}

	# install documentation
	if use doc; then
		emake docs
		# don't use ${PF} or the doc will not be found
		insinto /usr/share/doc/qtcreator
		doins share/doc/qtcreator/qtcreator{,-dev}.qch
		docompress -x /usr/share/doc/qtcreator/qtcreator{,-dev}.qch
	fi
}