#!/sbin/openrc-run
# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

description="Production process manager for Node.js apps with a built-in load balancer."

extra_started_commands="reload list update"

PM2=/usr/bin/pm2
user=${SVCNAME#*.}
# Options for start-stop-daemon (default start function)
command=${PM2}
command_user=${user}
pidfile=$(eval echo ~${user})/.pm2/pm2.pid

run_pm2_as_user() {
	einfo "${PM2} $@"
	eval sudo -u ${user} ${PM2} $@
}

depend() {
	need net
}

start_post() {
	if [ "${user}" == "root" ]; then
		ewarn "Better run this daemon as a non-root user. To set this user, create a symlink"
		ewarn "to the pm2 init script from a link called pm2.apache - like so"
		ewarn "	     cd /etc/init.d"
		ewarn "	     ln -s pm2 pm2.user"
		ewarn ""
		ewarn "You can then treat pm2.user as any other service, so you can"
		ewarn "stop one vpn and start another if you need to."
	fi

	einfo ""
	einfo "PM2: Process Manager started. To start services run:"
	einfo "PM2: # sudo -u ${user} $PM2 start /path/to/app"
}

start() {
	ebegin "Starting PM2 process manager..."
	start-stop-daemon --start --user ${user} --exec ${PM2} resurrect --background --pidfile ${pidfile}
	eend $?
}

stop() {
	ebegin "Stopping PM2 process manager..."
	run_pm2_as_user dump
	run_pm2_as_user kill
	eend $?
}

reload() {
	ebegin "Reloading pm2"
	run_pm2_as_user reload all
	eend $?
}

list() {
	ebegin "List all processes"
	run_pm2_as_user list
	eend $?
}

update() {
    ebegin "Updating process"
    run_pm2_as_user update
    eend $?
}

# vim: ts=4