#!/usr/bin/bash

sinks=$(pactl list sinks short | grep RUNNING | awk '{ print $1 }')
if [ -z "$sinks" ]; then
	sinks=$(pactl get-default-sink)
fi

echo "$sinks"

for SINK in $sinks
do
  volume="${1//\%/}"
  if [[ $volume =~ \+ ]] || [[ $volume =~ - ]]; then
    current=$(pactl get-sink-volume "${SINK}" | grep -o -E "[0-9]+%" | head -1 | sed "s/%//g")
    volume="$((${current} ${volume}))"
    if [[ "${volume}" =~ "-" ]]; then
      volume="0"
    fi
    #if [ "${#volume}" -gt "2" ]; then
    #  volume="100"
    #fi
  fi

  echo "$volume"
  pactl set-sink-volume "${SINK}" "${volume}%"
done