#!/usr/bin/env bash

down() {
pamixer -d 2
volume=$(pamixer --get-volume)
[$volume -gt 0 ] && volume=`expr $volume`  
notify-send -a "Volume" "Decreasing to $volume%" -h int:value:"$volume" -i ~/icons/low-volume.png -h string:x-canonical-private-synchronous:volume -u low
canberra-gtk-play -i audio-volume-change -d "changevolume"
}

up() {
pamixer -i 2
volume=$(pamixer --get-volume)
[ $volume -lt 1000 ] && volume=`expr $volume`  
notify-send -a "Volume" "Increasing to $volume%" -h int:value:"$volume" -i ~/icons/high-volume.png -h string:x-canonical-private-synchronous:volume -u low
canberra-gtk-play -i audio-volume-change -d "changevolume"
}

mute() {
muted="$(pamixer --get-mute)"
if $muted; then
  pamixer -u
  notify-send -a "VOLUME" "UNMUTED" -i ~/.config/dunst/assets/ui/volume_high.svg -h string:x-canonical-private-synchronous:volume
else 
  pamixer -m
  notify-send -a "VOLUME" "MUTED" -i ~/.config/dunst/assets/ui/volume_muted.svg -h string:x-canonical-private-synchronous:volume
fi
}

case "$1" in
  up) up;;
  down) down;;
  mute) mute;;
esac