#!/bin/bash

ICONS=~/.local/share/dunst

if [[ ! -x $(which pulsemixer) ]]; then
  echo -e "\e[1;31merror\e[m: pulsemixer is not installed."
  exit 1
fi

notify() {
  get_icon
  if [[ $is_mute == 1 ]]; then
    dunstify -a Volume -i $icon -u low "Volume mute!"
  else
    dunstify -a Volume -i $icon -u low -h int:value:$curr_volume "currtent volume: ${curr_volume}%"
  fi
}

get_volume() {
  echo $(pulsemixer --get-volume | cut -d' ' -f1)
}

get_icon() {
  curr_volume=$(get_volume)
  is_mute=$(pulsemixer --get-mute)
  if [[  $is_mute == 1 || "$curr_volume" -eq "0" ]]; then
    icon="${ICONS}/volume-mute.png"
    curr_volume=0
  elif [[ "$curr_volume" -le "35" ]]; then
    icon="${ICONS}/volume-low.png"
  elif [[ "$curr_volume" -le "70" ]]; then
    icon="${ICONS}/volume-mid.png"
  else
    icon="${ICONS}/volume-high.png"
  fi
}


volume_up() {
  [[ $(pulsemixer --get-mute) == 1 ]] && pulsemixer --unmute
  pulsemixer --max-volume 100 --change-volume +5
  notify
}


volume_down() {
  [[ $(pulsemixer --get-mute) == 1 ]] && pulsemixer --unmute
  pulsemixer --max-volume 100 --change-volume -5
  notify
}

toggle_mute() {
  pulsemixer --toggle-mute
  notify
}


case "$1" in 
  "up")
    volume_up
    ;;
  "down")
    volume_down
    ;;
  "mute")
    toggle_mute
    ;;
  *)
    get_volume
esac