#!/bin/bash
NAME_FILE="/home/bladt/Downloads/walls/in_use/names.txt"
DIR=$(dirname $NAME_FILE)
WAIT_TIME="5m"
STAT=0

# takes a string as "[path] [option]"
#+ and outputs "[flag] [path]" to be passed to awsetbg
function modeSwitch {
    case $2 in
    "full")
        local mode="-F"
    ;;
    "centered")
        local mode="-C"
    ;;
    "tiled")
        local mode="-T"
    ;;
    "maximized")
        local mode="-A"
    ;;
    *)
        local mode="-F" #defaults to fullscreen
    ;;
    esac
    echo "$mode $1"
}

if [ "$#" -ne "0" ]; then
    IFS=$(echo -ne "\\n")
    name=$(grep -E "$1" $NAME_FILE)
    nonempty=$?
    if [ $(echo $name | wc -l) -gt "1" ]; then
        echo $name
    elif [ $nonempty -eq "0" ]; then
        unset IFS #unset here, to force $name to be split into modeSwitch's $1 and $2
        awsetbg $(modeSwitch $DIR/$name)
    else
        echo "wallrotor found no entries matching \"$1\"" >&2
        stat=1
    fi
    unset IFS
    exit $stat
elif  ps -e | grep -i wallrotor | grep -v $$ >/dev/null 2>&1 ; then
    echo "allready running"
    exit
fi

while true; do
    names="$(sort -R $NAME_FILE)"
    while read -r line ; do
        awsetbg $(modeSwitch $DIR/$line)
        sleep $WAIT_TIME
    done <<< "$names"
done
exit