# Copyright 2021-2023 Gentoo Authors

# py3.12: uses imp and distutils among potentially more issues, refer to

# www-client/chromium for when adding/backporting support may be viable

inherit check-reqs flag-o-matic multiprocessing optfeature

inherit prefix python-any-r1 qt6-build toolchain-funcs

DESCRIPTION="Library for rendering dynamic web content in Qt6 C++ and QML applications"

SRC_URI+="

	https://dev.gentoo.org/~ionen/distfiles/${PN}-6.5-patchset-1.tar.xz

"

if [[ ${QT6_BUILD_TYPE} == release ]]; then

	KEYWORDS="amd64"

IUSE="

	+alsa bindist custom-cflags designer geolocation +jumbo-build kerberos

	opengl pulseaudio qml screencast +system-icu vulkan +widgets

"

REQUIRED_USE="

	designer? ( qml widgets )

"

# dlopen: krb5, pciutils, udev

	dev-libs/nspr

	dev-libs/nss

	~dev-qt/qtbase-${PV}:6[gui,opengl=,vulkan?,widgets?]

	~dev-qt/qtwebchannel-${PV}:6[qml?]

	media-libs/libpng:=

	media-libs/libvpx:=

	media-libs/openjpeg:2=

	sys-libs/zlib:=[minizip]

	x11-libs/libxcb:=

	x11-libs/libxkbcommon

	x11-libs/libxkbfile

	designer? ( ~dev-qt/qttools-${PV}:6[designer] )

	geolocation? ( ~dev-qt/qtpositioning-${PV}:6 )

	pulseaudio? ( media-libs/libpulse[glib] )

	qml? ( ~dev-qt/qtdeclarative-${PV}:6 )

	screencast? (

		dev-libs/glib:2

		media-libs/mesa[gbm(+)]

		media-video/pipewire:=

		x11-libs/libdrm

	system-icu? ( dev-libs/icu:= )

	widgets? ( ~dev-qt/qtdeclarative-${PV}:6[widgets] )

DEPEND="

	${RDEPEND}

	x11-base/xorg-proto

	x11-libs/libxshmfence

	screencast? ( media-libs/libepoxy[egl(+)] )

	test? (

		widgets? ( app-text/poppler[cxx(+)] )

	)

BDEPEND="

	$(python_gen_any_dep 'dev-python/html5lib[${PYTHON_USEDEP}]')

PATCHES=( "${WORKDIR}"/patches/${PN} )

[[ ${PV} == 6.9999 ]] || # keep for 6.x.9999

	PATCHES+=( "${WORKDIR}"/patches/chromium )

PATCHES+=(

	# add extras as needed here, may merge in set if carries across versions

	"${FILESDIR}"/${PN}-6.5.2-libcxx17.patch

	"${FILESDIR}"/${PN}-6.5.2-cstdint.patch

)

python_check_deps() {

	python_has_version "dev-python/html5lib[${PYTHON_USEDEP}]"

}

qtwebengine_check-reqs() {

	if is-flagq '-g?(gdb)?([1-9])'; then #307861

		ewarn

		ewarn "Used CFLAGS/CXXFLAGS seem to enable debug info (-g or -ggdb), which"

		ewarn "is non-trivial with ${PN}. May experience extended compilation"

		ewarn "times, increased disk/memory usage, and potentially link failure."

		ewarn

		ewarn "If run into issues, please try disabling before reporting a bug."

	local CHECKREQS_DISK_BUILD=7G

	local CHECKREQS_DISK_USR=220M

	if ! has distcc ${FEATURES}; then #830661

		# assume ~2GB per job or 1.5GB if clang, possible with less

		# depending on free memory and *FLAGS, but prefer being safe as

		# users having OOM issues with qtwebengine been rather common

		tc-is-clang && : 15 || : 20

		local CHECKREQS_MEMORY=$(($(makeopts_jobs)*_/10))G

	check-reqs_${EBUILD_PHASE_FUNC} #570534

	qt6-build_src_prepare

	# for www-plugins/chrome-binary-plugins (widevine) search paths on prefix

	hprefixify -w /Gentoo/ src/core/content_client_qt.cpp

	# store chromium versions, only used in postinst for a warning

	local chromium

	mapfile -t chromium < CHROMIUM_VERSION || die

	[[ ${chromium[1]} =~ ^Based.*:[^0-9]+([0-9.]+$) ]] &&

		QT6_CHROMIUM_VER=${BASH_REMATCH[1]} || die

	[[ ${chromium[2]} =~ ^Patched.+:[^0-9]+([0-9.]+$) ]] &&

		QT6_CHROMIUM_PATCHES_VER=${BASH_REMATCH[1]} || die

}

src_configure() {

	local mycmakeargs=(

		-DQT_FEATURE_qtpdf_build=OFF # TODO?

		-DQT_FEATURE_qtpdf_quick_build=OFF

		-DQT_FEATURE_qtpdf_widgets_build=OFF

		-DQT_FEATURE_qtwebengine_build=ON

		$(qt_feature qml qtwebengine_quick_build)

		$(qt_feature widgets qtwebengine_widgets_build)

		$(cmake_use_find_package designer Qt6Designer)

		$(qt_feature alsa webengine_system_alsa)

		$(qt_feature !bindist webengine_proprietary_codecs)

		$(qt_feature geolocation webengine_geolocation)

		$(qt_feature jumbo-build webengine_jumbo_build)

		$(qt_feature kerberos webengine_kerberos)

		$(qt_feature pulseaudio webengine_system_pulseaudio)

		$(qt_feature screencast webengine_webrtc_pipewire)

		$(qt_feature system-icu webengine_system_icu)

		$(qt_feature vulkan webengine_vulkan)

		-DQT_FEATURE_webengine_embedded_build=OFF

		-DQT_FEATURE_webengine_extensions=ON

		-DQT_FEATURE_webengine_ozone_x11=ON # needed, cannot do optional X yet

		-DQT_FEATURE_webengine_pepper_plugins=ON

		-DQT_FEATURE_webengine_printing_and_pdf=ON

		-DQT_FEATURE_webengine_spellchecker=ON

		-DQT_FEATURE_webengine_webchannel=ON

		-DQT_FEATURE_webengine_webrtc=ON

		# needs a modified ffmpeg to be usable, and even then it may not

		# cooperate with new major ffmpeg versions (bug #831487)

		-DQT_FEATURE_webengine_system_ffmpeg=OFF

		# preemptively using bundled to avoid complications, may revisit

		# (see discussions in https://github.com/gentoo/gentoo/pull/32281)

		-DQT_FEATURE_webengine_system_re2=OFF

		# not necessary to pass these (default), but in case detection fails

		$(printf -- '-DQT_FEATURE_webengine_system_%s=ON ' \

			freetype glib harfbuzz lcms2 libevent libjpeg \

			libopenjpeg2 libpci libpng libvpx libwebp libxml \

			minizip opus poppler snappy zlib)

		# TODO: fixup gn cross, or package dev-qt/qtwebengine-gn with =ON

		-DINSTALL_GN=OFF

	)

	local mygnargs=(

		# prefer no dlopen where possible

		link_pulseaudio=true

		rtc_link_pipewire=true

	)

	if use !custom-cflags; then

		strip-flags # fragile

		if is-flagq '-g?(gdb)?([2-9])'; then #914475

			replace-flags '-g?(gdb)?([2-9])' -g1

			ewarn "-g2+/-ggdb* *FLAGS replaced with -g1 (enable USE=custom-cflags to keep)"

		fi

	export NINJA NINJAFLAGS=$(get_NINJAOPTS)

	[[ ${NINJA_VERBOSE^^} == OFF ]] || NINJAFLAGS+=" -v"

	local -x EXTRA_GN="${mygnargs[*]} ${EXTRA_GN}"

	einfo "Extra Gn args: ${EXTRA_GN}"

	qt6-build_src_configure

src_test() {

	if [[ ${EUID} == 0 ]]; then

		# almost every tests fail, so skip entirely

		ewarn "Skipping tests due to running as root (chromium refuses this configuration)."

		return

	fi

	local CMAKE_SKIP_TESTS=(

		# fails with network sandbox

		tst_loadsignals

		tst_qquickwebengineview

		tst_qwebengineview

		# certs verfication seems flaky and gives expiration warnings

		tst_qwebengineclientcertificatestore

	# prevent using the system's qtwebengine

	# (use glob to avoid unnecessary complications with arch dir)

	local resources=( "${BUILD_DIR}/src/core/${CMAKE_BUILD_TYPE}/"* )

	[[ -d ${resources[0]} ]] || die "invalid resources path: ${resources[0]}"

	local -x QTWEBENGINEPROCESS_PATH=${BUILD_DIR}${QT6_LIBEXECDIR#"${QT6_PREFIX}"}/QtWebEngineProcess

	local -x QTWEBENGINE_LOCALES_PATH=${resources[0]}/qtwebengine_locales

	local -x QTWEBENGINE_RESOURCES_PATH=${resources[0]}

	# random failures in several tests without -j1

	qt6-build_src_test -j1

pkg_postinst() {

	# plugin may also be found in $HOME if provided by chrome or firefox

	use amd64 &&

		optfeature "Widevine DRM support (protected media playback)" \

			www-plugins/chrome-binary-plugins

	elog

	elog "This version of Qt WebEngine is based on Chromium version ${QT6_CHROMIUM_VER}, with"

	elog "additional security fixes up to ${QT6_CHROMIUM_PATCHES_VER}. Extensive as it is, the"

	elog

	elog "tl;dr your web browsing experience will be compromised."