volume raising + lowering script

volume

#!/usr/bin/nu

def main [] {
  print "main"
}

def "main raise" [] {
  let vol = currentVolume
  if ($vol < 100) {
    pactl set-sink-volume @DEFAULT_SINK@ $"($vol + 1)%"
    print $"raised to: (currentVolume)"
  }
}

def "main lower" [] {
  let vol = currentVolume
  if ($vol > 0) {
    pactl set-sink-volume @DEFAULT_SINK@ $"($vol - 1)%"
    print $"lowered to: (currentVolume)"
  }
}

def currentVolume [] {
  #Note this makes two assumptions to simplify the process
  # 1. The left and right channels are balanced
  # 2. There is only one active audio sink at a time (or rather that only the first active one matters)

  let volTxt = pactl --format=json list sinks | from json | where state == "RUNNING" | first | get volume.front-left.value_percent
  $volTxt | str substring 0..-2 | into int
}