#!/bin/bash
#
#    KK7AV CWID
#    Alternate callsign script
#    http://irlp.kk7av.com/scripts/alt_callsign
#
##################################################


#####   USER CONFIGURABLE SETTINGS    #####
#
# Sets the amplitude of the CW (ranges from a minimum of '.01', to a maximum of '.99')
# A value of approx. '.50' is probably pretty close for most users since you will
# typically want the CW identifier to be, 'subdued' when compared to voice audio level.
volume=".50"
#
# Sets the location of the wav file to be used for your ID
location="/path/to/wavfile.wav"
#
###    END USER CONFIG  SETTINGS    ###


############################
#  NO MODS BELOW THIS LINE #
############################


# exit if there is an active instance already executing
if [ -f $LOCAL/cw ] ; then
  exit 1
fi
# ensure script is run as repeater user
if [ `/usr/bin/whoami` != "repeater" ] ; then
  exit 1
fi
# ensure the environment file has been sourced
if [ "$RUN_ENV" != "TRUE" ] ; then
  . /home/irlp/custom/environment
fi
# make sure the play binary is installed
if [ ! `which play` ]; then
  exit 1
fi
touch $LOCAL/cw
play -v $volume $location >&/dev/null 2>&1
rm -f $LOCAL/cw
exit 0