#! /bin/sh

set -e

gtk-update-icon-cache /usr/share/icons/hicolor

#check whether the needed sound systen settings are already in place

if ! grep -q KitchenAlert /usr/share/policy/etc/current/pulse/xpolicy.conf

then

#checks whether there is a newline at the end of the file and adds one if there is not and then
#checks if there is an ampty line at the end of the file and add one if there is not

perl -e 'use strict;' \
-e 'use warnings;' \
-e 'open(my $in,  "<",  "/usr/share/policy/etc/current/pulse/xpolicy.conf")  or die "Cannot open /usr/share/policy/etc/current/pulse/xpolicy.conf: $!";' \
-e 'my @lines = <$in>;' \
-e 'my $lastlineishere = $#lines;' \
-e 'my $lastline = $lines[$lastlineishere];' \
-e 'unless ($lastline =~ /\n$/){open(my $log, ">>", "/usr/share/policy/etc/current/pulse/xpolicy.conf") or die "Cannot open /usr/share/policy/etc/current/pulse/xpolicy.conf: $!"; print $log "\n"; }' \
-e 'unless ($lastline =~ /^\n$/){open(my $log, ">>", "/usr/share/policy/etc/current/pulse/xpolicy.conf") or die "Cannot open /usr/share/policy/etc/current/pulse/xpolicy.conf: $!"; print $log "\n"; }'

#writes the sound system settings needed

echo -e "[stream]\n\
exe	= KitchenAlert\n\
group	= alarm" >> /usr/share/policy/etc/current/pulse/xpolicy.conf

#restarts the pulseaudio so that the above changed settings take effect
#this interrupts all playing sounds (they do not resume play at restart)
 
stop pulseaudio
start pulseaudio

fi

exit 0