#!/sbin/openrc-run

description="Coldplug all devices through gardendev"

gardendev_monitor_log=/run/udevmonitor.log
gardendev_monitor_pid=/run/udevmonitor.pid

depend() {
	need gardendevd
	after mdevd-init
	keyword -containers
}

start_pre() {
	if yesno "${gardendev_monitor:-no}"; then
		einfo "Running gardendevctl monitor ${gardendev_monitor_opts} to log all events"
		start-stop-daemon --start --stdout "${gardendev_monitor_log}" \
			--make-pidfile --pidfile "${gardendev_monitor_pid}" \
			--background --exec /usr/bin/gardendevctl -- monitor ${gardendev_monitor_opts}
	fi
	return 0
}

display_hotplugged_services() {
	local svcfile svc services
	for svcfile in "${RC_SVCDIR}"/hotplugged/*; do
		svc="${svcfile##*/}"
		[ -x "${svcfile}" ] || continue

		services="${services} ${svc}"
	done
	[ -n "${services}" ] && einfo "Device initiated services:${HILITE}${services}${NORMAL}"
	return 0
}

start_post() {
	if yesno "${gardendev_monitor:-no}"; then
		if yesno "${gardendev_monitor_keep_running:-no}"; then
			ewarn "gardendev monitor is still writing into ${gardendev_monitor_log}"
		else
			einfo "Stopping gardendev monitor: Log is in ${gardendev_monitor_log}"
			start-stop-daemon --stop --pidfile "${gardendev_monitor_pid}" \
				--exec /usr/bin/gardendevctl
		fi
	fi
	display_hotplugged_services
	return 0
}

dev_root_link() {
	local RULESDIR
	RULESDIR=/run/udev/rules.d
	[ -d $RULESDIR ] || mkdir -p $RULESDIR
	eval $(gardendevctl info --export --export-prefix=ROOT_ \
		--device-id-of-file=/ || true)
	[ "$ROOT_MAJOR" -a "$ROOT_MINOR" ] || return 0

	# btrfs filesystems have bogus major/minor numbers
	[ "$ROOT_MAJOR" != 0 ] || return 0

	echo 'ACTION=="add|change", SUBSYSTEM=="block", ENV{MAJOR}=="'$ROOT_MAJOR'", ENV{MINOR}=="'$ROOT_MINOR'", SYMLINK+="root"' \
		> $RULESDIR/61-dev-root-link.rules
	return 0
}

start() {
	if yesno ${rc_dev_root_symlink:-yes}; then
		ebegin "Generating a rule to create a /dev/root symlink"
		dev_root_link
		eend $?
	fi

	get_bootparam "nocoldplug" && rc_coldplug="no"
	if ! yesno ${rc_coldplug:-${RC_COLDPLUG:-yes}}; then
		einfo "Setting /dev permissions and symbolic links"
		gardendevctl trigger --attr-match=dev --action=add
		gardendevctl trigger --subsystem-match=net --action=add
		rc=$?
		ewarn "Skipping coldplug sequence"
		return $rc
	fi

	ebegin "Populating /dev with existing devices through uevents"
	gardendevctl trigger --type=subsystems --action=add
	gardendevctl trigger --type=devices --action=add
	eend $?
}
