#!/bin/sh

SEP=" / "

keyboard() {
    printf "KEY %s" "$(setxkbmap -query | awk '/layout/{print $2}')"
    printf "$SEP\n"
}

alsa() {
    STATUS=$(amixer sget Master | tail -n1 | sed -r "s/.*\[(.*)\]/\1/")
    VOL=$(amixer get Master | tail -n1 | sed -r "s/.*\[(.*)%\].*/\1/")

    if echo "$STATUS" | grep -q "off"; then
        printf "VOL muted"
    else
        printf "VOL %s%%" "$VOL"
    fi
    printf "$SEP\n"
}

chargingp() {
    state=`cat /sys/class/power_supply/BAT0/status`
    printf "BAT "
    if cat /sys/class/power_supply/BAT0/status | grep -q "Discharging"; then
        printf "%b " "-"
    else
        printf "%b " "+"
    fi
    printf "\n"
}

battery() {
    printf "`cat /sys/class/power_supply/BAT0/capacity`%%"
    printf "$SEP\n"
}

internetp() {
    if ip a | grep "inet " | grep -v 127 > /dev/null; then
        printf "NET connected"
    else
        printf "NET disconnected"
    fi
    printf "$SEP\n"
}

current_time() {
    printf "$(date +%R)"
    printf "$SEP\n"
}

while true; do
    dispstr=""
    dispstr="$dispstr$(keyboard)"
    dispstr="$dispstr$(alsa)"
    dispstr="$dispstr$(internetp)"
    dispstr="$dispstr$(current_time)"

    xsetroot -name "$dispstr"
    sleep 1
done