#!/usr/bin/env bash

volicons=("󰕿" "󰖀" "󰕾")

vol()     { wpctl get-volume @DEFAULT_AUDIO_"$1"@ | awk '{print int($2*100)}'; }
ismuted() { wpctl get-volume @DEFAULT_AUDIO_"$1"@ | rg -qi muted; echo -n $?; }
setvol()  { wpctl set-volume @DEFAULT_AUDIO_"$1"@ "$(awk -v n="$2" 'BEGIN{print n/100}')"; }
setmute() { wpctl set-mute @DEFAULT_AUDIO_"$1"@ toggle; }

gen_output() {
  percent=$(vol "SINK")
  lvl=$(awk -v n="$percent" 'BEGIN{print int(n/34)}')
  sink_muted=$(ismuted "SINK")
  source_muted=$(ismuted "SOURCE")

  [ "$sink_muted"   = 0 ] && icon="󰝟"           || icon="${volicons[$lvl]}"
  [ "$source_muted" = 0 ] && mic_icon="󰍭" || mic_icon="󰍬"

  printf '{"icon":"%s","percent":%s,"sink_muted":%s,"mic_icon":"%s","microphone":%s,"source_muted":%s}\n' \
    "$icon" "$percent" "$([ "$sink_muted" = 0 ] && echo true || echo false)" \
    "$mic_icon" "$(vol SOURCE)" "$([ "$source_muted" = 0 ] && echo true || echo false)"
}

case "$1" in
  mute)   setmute "$2" ;;
  setvol) setvol  "$2" "$3" ;;
  *)
    gen_output
    pw-cli -m 2>/dev/null | rg --line-buffered "PipeWire:Interface:Client" | while read -r _; do
      gen_output
    done
    ;;
esac