#!/usr/bin/env sh
pgrep -f sxmo_statusbar.sh | grep -v $$ | xargs kill -9

UPDATEFILE=/tmp/sxmo_bar
touch $UPDATEFILE

update() {
  # M symbol if modem monitoring is on & modem present
  MODEMMON=""
  pgrep -f sxmo_modemmonitor.sh && MODEMMON="M "

  # Battery pct
  PCT=$(cat /sys/class/power_supply/*-battery/capacity)
  BATSTATUS=$(
    cat /sys/class/power_supply/*-battery/status |
    cut -c1
  )

  # Volume
  AUDIODEV="$(sxmo_audiocurrentdevice.sh)"
  [[ $AUDIODEV == "None" ]] && VOL="" || VOL=$(echo "$AUDIODEV" | cut -c1 | tr L S)"$(
      amixer sget "$AUDIODEV" |
      grep -oE '([0-9]+)%' |
      tr -d ' %' |
      awk '{ s += $1; c++ } END { print s/c }'  |
      xargs printf %.0f
  )"

  # Time
  TIME=$(date +%R)

  BAR=" ${MODEMMON}${VOL} ${BATSTATUS}${PCT}% ${TIME}"
  xsetroot -name "$BAR"
}

# E.g. on first boot justs to make sure the bar comes in quickly
update && sleep 1 && update && sleep 1 && update

while :
do
  update
  inotifywait -e MODIFY $UPDATEFILE & sleep 30 & wait -n
  pgrep -P $$ | xargs kill -9
done