#!/usr/bin/env bash
# rice-volume up|down|mute|mic-mute|set <percent> - volume with an on-screen display.
set -uo pipefail

sink=@DEFAULT_AUDIO_SINK@
src=@DEFAULT_AUDIO_SOURCE@
step=5

# prints "<percent> <muted|on>"
level() { wpctl get-volume "$1" | awk '{ printf "%d %s\n", $2 * 100 + 0.5, ($3 == "[MUTED]") ? "muted" : "on" }'; }

case "${1:-}" in
  up)       wpctl set-mute "$sink" 0; wpctl set-volume -l 1.0 "$sink" "${step}%+" ;;
  down)     wpctl set-volume "$sink" "${step}%-" ;;
  mute)     wpctl set-mute "$sink" toggle ;;
  # set comes from the panel slider, which already shows the level: no OSD.
  set)      wpctl set-volume -l 1.0 "$sink" "${2:?usage: rice-volume set <percent>}%"; exit 0 ;;
  mic-mute)
    wpctl set-mute "$src" toggle
    read -r v s < <(level "$src")
    if [[ $s == muted ]]; then rice-osd 󰍭 Microphone muted; else rice-osd 󰍬 Microphone "$v"; fi
    exit 0
    ;;
  *) echo "usage: rice-volume up|down|mute|mic-mute|set <percent>" >&2; exit 2 ;;
esac

read -r v s < <(level "$sink")
if [[ $s == muted ]]; then rice-osd 󰝟 Volume muted; else rice-osd 󰕾 Volume "$v"; fi