#!/bin/bash
scriptname=$( basename "$0" )
is_running=$( pgrep -cf "$scriptname" )
if (( $is_running > 1 )) ; then
    >&2 echo $scriptname is running.
    exit 0
fi
declare -A ws=()
ws[1]="\"1: \""
ws[2]="\"2: \""
ws[3]="\"3: Media\""
ws[4]="\"4: Files\""
ws[5]="\"5: Work\""
ws[6]="\"6: Docs\""
ws[7]="\"7\""
ws[8]="\"8\""
ws[9]="\"9\""
ws[10]="\"10\""

function getws () {
    lastws=$(cat ~/.i3/.ws )
    currentws=$(i3-msg -t get_workspaces | jq -c '.[] |select(.focused)|.name' )
    if [[ "$lastws" != "$currentws" ]]  ; then
        echo "$currentws" >| ~/.i3/.ws
        for ((i=1;i<=10;i++)) ; do
            if [[ "${ws[$i]}" == "$currentws" ]] ; then
                currentIndex=$i
                if (($currentIndex !=10)) && [[ "$lastws" == ${ws[10]} ]]
                    then
                        #some personal stuff
                fi
                return "$currentIndex"
            fi
        done
    fi
    return 0
}

i=0
while true ; do
    getws
    index=$?
    if (($index != 0 || $i >= 30 )) ; then
        if (($index !=0 )) ; then lasti=$index ; fi
        $HOME/.i3/wchanger.sh $lasti  #script to change wallpaper if ws changed or 30s passed
        i=0
    fi
    i=$((i+1))
    sleep 1
done