#!/bin/bash

declare -i z
z=0
i=0
filename=/var/lib/backuppc/$1.laststate
echo "Starting wake on lan script"
echo "Filename=$filename"
cnt=$(ping -c 1 $1 | awk -F, '/received/{print $2*1}')

echo "Count ping to host $1 = $cnt"

if [ $cnt -eq 0 ]; then
    echo $cnt > $filename

    # Time to wait for machine to boot in minutes
    # Use value given as argument
    if [ -n "$2" ] && [ "$2" -eq "$2" ] 2>/dev/null; then
      min=$2
    else
      echo "	Second argument given is not a valid number! : $2"
      echo "	Using default value: 2 minutes"
      min=2
    fi
    m=$min"m"

    echo "Send WOL to $1 and wait $min minutes"
    sudo /usr/sbin/etherwake -i enp5s0 $1
    sleep $m
    while [ $i = 0 -a $z -lt 18 ]
    do
	count=$(ping -c 5 $1 | awk -F, '/received/{print $2*1}')
	if [ $count -eq 0 ]; then
    	    echo "$1 is down"
	    if [ $z -eq 17 ]; then
		echo "$1 not up after `expr $min + 3` minutes... exiting"
		exit 1
	    fi
	else
	    i=1
	    echo "$1 is up"
	    exit 0
        fi
	sleep 10s
	z=z+1
    done
else
    echo $cnt > $filename
    exit 0
fi