#!/bin/bash
 
while :; do
        systemctl is-active kodi > /dev/null
        isRunning=$?
        # isrunning is 0, when kodi is running 
        # echo "isrunning:" $isRunning " tvIsOn:" $tvIsOn

        # seaching for chromecast devices
        #avahi-browse -t -p -r _googlecast._tcp | grep -i chromecast | grep -q -i <yourChromeDeviceName>
        # in case of a fixed TV device IP adress
        if [ "$isRunning" -eq 0 ] ; then
                # the name of the TV needs to be configured in the home router
                # otherways use a fixed 
                #i=360
                i=5
                while [ $i -gt 0 ]
                do 
                        # the bash has no build in command to decrease the loop counter, so we have to do a workaround
                        i=$(python -c "import sys; print(int(sys.argv[1])-1)" $i )
                        ping -c 1 192.168.1.59 > /dev/null
                        tvIsOn=$?
                        if [ "$tvIsOn" -eq 0 ] ; then
                                break
                        else
                                sleep 5
                        fi
                        echo "Loop: $i"
                done
                echo "Left loop..."
        else
                TvCecStatus=$(echo pow 0 | cec-client -s -d 1 | grep 'power status' | awk '{split($0,a,":");print a[2]}' | sed 's/ //')
                if [ "$TvCecStatus" == "on" ]; then
                        tvIsOn=0
                else
                        tvIsOn=1
                fi
        fi
        if [ "$tvIsOn" -ne 0 -a "$isRunning" -eq 0 ] ; then
                date +"kodi stops at %c" >> /tmp/kodi.log
                systemctl stop kodi
        elif [ "$tvIsOn" -eq 0 -a "$isRunning" -ne 0 ] ; then
                date +"kodi starts at %c" >> /tmp/kodi.log
                systemctl start kodi
        fi
        sleep 10
done
 
exit 0