#!/bin/bash

# dwm_blank
# Version: 0.2
# Last modified: 2012/11/05
# Author: mt

progname="dwm_lock"

lock="xscreensaver-command -lock"
now=false
off=false
verbose=false

printhelp(){
	echo "$progname [options]"
	echo "Options:"
	echo "  -h|--help: prints this message and quit"
	echo "  -now:      doesn't wait 1 second to lock screen"
	echo "  -off:      power off the monitor/lcd screen (dpms)"
	echo "  -slock:    uses slock to lock the screen (default is xscreensaver)"
	echo "  -v:        verbose mode"
	echo "  -xlock:    uses xlock to lock the screen"

	return
}

while [ "$1" != "" ]; do
	case "$1" in
		"-h|--help")
			printhelp
			;;
		"-v")
			verbose=true
			;;
		"-now")
			now=true
			;;
		"-off")
			off=true
			;;
		"-slock")
			lock=slock
			;;
		"-xlock")
			lock=xlock
			;;
		*)
			echo "$progname: error in the options!" >&2
			exit 2
			;;
	esac
	shift
done

if ! $now; then
	sleep 1 # to protect from key-release event
fi

if $off; then
	if $verbose; then
		echo "$progname: power off the screen..."
	fi
	xset dpms force off
fi

$lock