#!/bin/sh

Device="Audio Adapter (Unitek Y-247A) Mono"

Name=$(wpctl status | grep "$Device")
Id=$( echo $Name | cut -d '.' -f 1 | cut -c 5-)
Node=$(wpctl inspect $Id | grep node.name | cut -d '=' -f 2)

case "$1" in
  start) wpctl set-volume $Id 0.2
      touch ~/.local/state/loopback.lock
      pw-loopback -C $Node & ;;
  stop) killall pw-loopback
      rm ~/.local/state/loopback.lock ;;
  toggle)
    if [ -f ~/.local/state/loopback.lock ]; then
      loopback stop
    else
      loopback start
    fi ;;
  *) cat << EOF
loopback: cli audio script for looping back pulse devices to the default output.

Allowed options:
  start     Start loopback for device
  stop      Stop all active loopbacks
  toggle    Start or stop loopback depending if it is already running

EOF
esac