#!/bin/bash -e

SINK='@DEFAULT_AUDIO_SINK@'

if [ "$1" == 'm' ]; then
    wpctl set-mute "$SINK" toggle
else
    CUR="$((10#$(wpctl get-volume "$SINK" | tr -dc '0-9')))"

    case "${1:0:1}" in
        '')      echo "$CUR"; exit              ;;
        '+'|'-') CUR="$((CUR - CUR % $1 + $1))" ;;
        *)       CUR="$1"                       ;;
    esac

    wpctl set-volume -l 1 "$SINK" "$CUR%"
    wpctl set-mute        "$SINK" 0
fi

# update sbar
kill -35 "$(cat "$HOME/.cache/pidofbar")"