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

EAPI=8

LUA_COMPAT=( lua5-{3,4} )

inherit lua-single meson systemd

if [[ ${PV} == 9999 ]]; then
	EGIT_REPO_URI="https://gitlab.freedesktop.org/pipewire/${PN}.git"
	EGIT_BRANCH="master"
	inherit git-r3
else
	SRC_URI="https://gitlab.freedesktop.org/pipewire/${PN}/-/archive/${PV}/${P}.tar.gz"
	KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~sparc ~x86"
fi

DESCRIPTION="Replacement for pipewire-media-session"
HOMEPAGE="https://gitlab.freedesktop.org/pipewire/wireplumber"

LICENSE="MIT"
SLOT="0/0.4"
IUSE="elogind system-service systemd test"

REQUIRED_USE="
	${LUA_REQUIRED_USE}
	?? ( elogind systemd )
	system-service? ( systemd )
"

RESTRICT="!test? ( test )"

# introspection? ( dev-libs/gobject-introspection ) is valid but likely only used for doc building
BDEPEND="
	dev-libs/glib
	dev-util/gdbus-codegen
	dev-util/glib-utils
"

DEPEND="
	${LUA_DEPS}
	>=dev-libs/glib-2.62
	>=media-video/pipewire-0.3.48:=
	virtual/libc
	virtual/libintl
	elogind? ( sys-auth/elogind )
	systemd? ( sys-apps/systemd )
"

# Any dev-lua/* deps get declared like this inside RDEPEND:
#	$(lua_gen_cond_dep '
#		dev-lua/<NAME>[${LUA_USEDEP}]
#	')
RDEPEND="${DEPEND}
	system-service? (
		acct-user/pipewire
		acct-group/pipewire
	)
"

DOCS=( {NEWS,README}.rst )

src_configure() {
	local emesonargs=(
		-Ddoc=disabled # Ebuild not wired up yet (Sphinx, Doxygen?)
		-Dintrospection=disabled # Only used for Sphinx doc generation
		-Dsystem-lua=true # We always unbundle everything we can
		-Dsystem-lua-version=$(ver_cut 1-2 $(lua_get_version))
		$(meson_feature elogind)
		$(meson_feature systemd)
		$(meson_use system-service systemd-system-service)
		$(meson_use systemd systemd-user-service)
		-Dsystemd-system-unit-dir=$(systemd_get_systemunitdir)
		-Dsystemd-user-unit-dir=$(systemd_get_userunitdir)
		$(meson_use test tests)
	)

	meson_src_configure
}

src_install() {
	meson_src_install

	# We copy the default config, so that Gentoo tools can pick up on any
	# updates and /etc does not end up with stale overrides.
	# If a reflinking CoW filesystem is used (e.g. Btrfs), then the files
	# will not actually get stored twice until modified.
	insinto /etc
	doins -r ${ED}/usr/share/wireplumber
}

pkg_postinst() {
	if systemd_is_booted ; then
		ewarn "pipewire-media-session.service is no longer installed. You must switch"
		ewarn "to wireplumber.service user unit before your next logout/reboot:"
		ewarn "systemctl --user disable pipewire-media-session.service"
		ewarn "systemctl --user --force enable wireplumber.service"
	else
		ewarn "Switch to WirePlumber will happen the next time gentoo-pipewire-launcher"
		ewarn "is started (a replacement for directly calling pipewire binary)."
		ewarn
		ewarn "Please ensure that ${EROOT}/etc/pipewire/pipewire.conf either does not exist"
		ewarn "or, if it does exist, that any reference to"
		ewarn "${EROOT}/usr/bin/pipewire-media-session is commented out (begins with a #)."
	fi
	if use system-service; then
		ewarn
		ewarn "WARNING: you have enabled the system-service USE flag, which installs"
		ewarn "the system-wide systemd units that enable WirePlumber to run as a system"
		ewarn "service. This is more than likely NOT what you want. You are strongly"
		ewarn "advised not to enable this mode and instead stick with systemd user"
		ewarn "units. The default configuration files will likely not work out of"
		ewarn "box, and you are on your own with configuration."
		ewarn
	fi
}