#!/bin/sh

export WM="dwm"
case "$(readlink -f /sbin/init)" in
	*systemd*) ctl='systemctl' ;;
	*) ctl='loginctl' ;;
esac

wmpid(){ # This function is needed if there are multiple instances of the window manager.
	tree="$(pstree -ps $$)"
	tree="${tree#*$WM(}"
	echo "${tree%%)*}"
}


case "$(printf " lock\n󰠚 leave $WM\n renew $WM\n󱣻 hibernate\n reboot\n shutdown\n sleep\n display off" | dmenu -i -l 15 -p 'Action: ')" in
	' lock') slock ;;
	"󰠚 leave $WM") kill -TERM "$(wmpid)" ;;
	" renew $WM") kill -HUP "$(wmpid)" ;;
	'󱣻 hibernate') slock $ctl hibernate -i ;;
	' sleep') slock $ctl suspend -i ;;
	' reboot') $ctl reboot -i ;;
	' shutdown') $ctl poweroff -i ;;
	' display off') xset dpms force off ;;
	*) exit 1 ;;
esac