# Copyright 1999-2019 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit meson

MY_PV="${PV%_*}"
MY_P="${PN}-${MY_PV}"

S="${WORKDIR}/${MY_P}"

RESTRICT="mirror"

DESCRIPTION="Multimedia processing graphs"
HOMEPAGE="http://pipewire.org/"
if [[ ${PV} == 9999 ]]; then
	EGIT_REPO_URI="https://github.com/PipeWire/pipewire.git"
	EGIT_BRANCH="work"
	inherit git-r3
else
	SRC_URI="https://github.com/PipeWire/${PN}/archive/${MY_PV}.tar.gz -> ${MY_P}.tar.gz"
	KEYWORDS="~amd64 ~x86"
fi

LICENSE="LGPL-2.1"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="+alsa bluetooth debug doc ffmpeg gstreamer jack pulseaudio rtkit systemd +testplugins v4l"

# TODO: make more of this stuff optional

RDEPEND="
	dev-libs/glib:2[dbus]
	media-libs/alsa-lib
	media-libs/libsdl2
	media-libs/libv4l
	media-libs/sbc
	media-libs/speexdsp
	sys-apps/dbus
	virtual/libudev
	x11-libs/libX11
	ffmpeg? (
		virtual/ffmpeg:=
	)
	gstreamer? (
		media-libs/gstreamer:1.0
		media-libs/gst-plugins-base:1.0
	)
	jack? (
		virtual/jack
	)
	pulseaudio? (
		media-sound/pulseaudio
	)
	rtkit? (
		sys-auth/rtkit
	)
	systemd? (
		sys-apps/systemd
	)
"
DEPEND="
	${RDEPEND}
	app-doc/xmltoman
	doc? ( 
		app-doc/doxygen
		media-gfx/graphviz
	)
"

src_configure() {
	local emesonargs=(
		$(meson_use alsa)
		$(meson_use alsa pipewire-alsa)
		$(meson_use bluetooth bluez5)
		$(meson_use doc docs)
		$(meson_use ffmpeg)
		$(meson_use gstreamer)
		$(meson_use jack pipewire-jack)
		$(meson_use pulseaudio pipewire-pulseaudio)
		$(meson_use systemd)
		$(meson_use testplugins audiotestsrc)
		$(meson_use testplugins test)
		$(meson_use testplugins videotestsrc)
		$(meson_use v4l v4l2)
		-Daudioconvert="true"
		-Daudiomixer="true"
		-Dman="true"
		-Dspa="true"
		-Dspa-plugins="true"
		-Dsupport="true"
		-Dvolume="true"
		# FIXME: make into eclass feature?
		--buildtype="$(usex debug debugoptimized plain)"
	)
	meson_src_configure
}

# ?: how on earth are we supposed to do this properly using doheader?!
deepheader() {
	local aheader
	for aheader in "$@"; do
		[[ -f "${aheader}" ]] || die "header \"${aheader}\" not found (pwd=${PWD})"
		insopts -m 0644
		dodir /usr/include/${aheader%/*}
		insinto /usr/include/${aheader%/*}
		doins "${aheader}"
	done
}

src_install() {
	meson_src_install
	# note: omitting for now but we might want to do this if problems occur.
	# An environment variable, DISABLE_RTKIT, can achieve this at runtime

	# if use '!rtkit'; then
	# 	rm "${ED%/}"/usr/$(get_libdir)/pipewire-*/libpipewire-module-rtkit.so || die
	# 	sed -e '/^load-module\slibpipewire-module-rtkit$/s/^/#/' -i "${ED%/}"/etc/pipewire/pipewire.conf 
	# fi

	sed -e 's|^exec\sbuild/src/|exec |g' -i "${ED%/}"/etc/pipewire/pipewire.conf || die "build/src removal"

	if use doc; then
		mv "${ED%/}"/usr/share/doc/pipewire/html "${ED%/}"/usr/share/doc/${PN}-${PVR}/html || die "moving html"
		rmdir "${ED%/}"/usr/share/doc/pipewire || die "removing usr/share/doc/pipewire dir"
	fi
	if use alsa; then
		dodir /usr/share/alsa/alsa.conf.d
		insinto /usr/share/alsa/alsa.conf.d
		doins pipewire-alsa/conf/50-pipewire.conf
		dodir /etc/alsa/conf.d
		dosym "${EPREFIX}"/usr/share/alsa/alsa.conf.d/50-pipewire.conf /etc/alsa/conf.d/50-pipewire.conf
	fi
	cd ${S}/spa/include
	deepheader spa/utils/result.h
	cd "${BUILD_DIR}"/src/examples
	dodir /usr/$(get_libdir)/pipewire-0.3/examples
	exeinto /usr/$(get_libdir)/pipewire-0.3/examples
	doexe audio-src
	doexe export-{sink,source,spa}
	doexe media-session
	doexe video-{play,src}
	use v4l && doexe local-v4l2
}