#!/usr/bin/env bash
# Outputs either:
#   muted
#   <0-100>   (integer volume)

SINK=$(pactl get-default-sink 2>/dev/null)
if [[ -z "$SINK" ]]; then
  echo "muted"
  exit 0
fi

INFO=$(pactl get-sink-volume "$SINK" 2>/dev/null)
MUTED=$(pactl get-sink-mute "$SINK" 2>/dev/null | awk '{print $2}')

if [[ "$MUTED" == "yes" ]]; then
  echo "muted"
  exit 0
fi

VOL=$(echo "$INFO" | grep -oP '\d+(?=%)' | head -1)
echo "${VOL:-0}"