#!/bin/sh

#   Aumix mute toggle
#   Version: 1.1.0
#   Date: 2005/03/21
#
#   Copyright: 2004 Jeremy Brand <jeremy@nirvani.net>
#   http://www.nirvani.net/software/
#   Licenced under the GNU Public License Version 2.
#
# Purpose:
#   To have a single script toggle between current sound levels
#   and mute with the aumix program while maintaining
#   and not deleting current mixer saved settings.
#
# Notes:
#   I bind this program to a single key in my window manager's
#   configuration file.  It then serves the purpose of having a
#   audio mute key.  If you have a fancy keyboard with a mute
#   key, try binding this program to that scancode.
#
# Usage:
#
# Toggle between mute and unmute based on last state:
#   aumix-toggle-mute.sh
#
# Force mute:
#   aumix-toggle-mute.sh --force-mute
#
# Force unmute:
#   aumix-toggle-mute.sh --force-unmute
#

TMP=$$

function __mute() {

  if [ -e "$HOME/.aumixrc.mute" ]; then
    aumix -v 0; aumix -w 0
  else
    mv -f $HOME/.aumixrc $HOME/.aumixrc.$TMP
    aumix -S
    aumix -v 0; aumix -w 0
    mv -f $HOME/.aumixrc $HOME/.aumixrc.mute
    mv -f $HOME/.aumixrc.$TMP $HOME/.aumixrc
  fi

}

function __unmute () {

  if [ -e "$HOME/.aumixrc.mute" ]; then
    mv -f $HOME/.aumixrc $HOME/.aumixrc.$TMP
    mv -f $HOME/.aumixrc.mute $HOME/.aumixrc
    aumix -L > /dev/null
    mv -f $HOME/.aumixrc.$TMP $HOME/.aumixrc
  else
    aumix -L > /dev/null
  fi

}

if [ "$1" = "--force-mute" ]; then

  __mute;

elif [ "$1" = "--force-unmute" ]; then

  __unmute;

elif [ -e "$HOME/.aumixrc.mute" ]; then

  __unmute;

else

  __mute;

fi