#!/usr/bin/perl
#
# agi-dtmf.agi - script for playing DTMF tones received as the callerid field
# 
# DTMF sound files must be in /var/lib/asterisk/sounds for this to work
#
# Accepted values are: 1 2 3 4 5 6 7 8 9 0 # * ,
# comma means pause for 1 second
#
# exten => 8500998,1,Answer
# exten => 8500998,2,Playback(silence)
# exten => 8500998,3,AGI(agi-dtmf.agi)
#; exten => 8500998,3,AGI(agi-dtmf.agi,signalonly) ; optional signal only DTMF
# exten => 8500998,4,Hangup
#
# Copyright (C) 2009  Matt Florell <vicidial@gmail.com>    LICENSE: AGPLv2
#
# CHANGES
# 90312-1534 - Added signalonly option
#

$signalonly=0;
### begin parsing run-time options ###
if (length($ARGV[0])>1)
	{
	$i=0;
	while ($#ARGV >= $i)
		{
		$args = "$args $ARGV[$i]";
		$i++;
		}
	
	if ($ARGV[0] =~ /signalonly/)
		{$signalonly=1;}
	}

$|=1;
while(<STDIN>) 
	{
	chomp;
	last unless length($_);
	if (/^agi_(\w+)\:\s+(.*)$/) 
		{$AGI{$1} = $2;}
	if (/^agi_callerid\:\s+(.*)$/)		{$caller_id = $1;}
	if (/^agi_calleridname\:\s+(.*)$/)  {$caller_idname = $1;}
	}

print STDERR "AGI Environment Dump:\n";
foreach $i (sort keys %AGI) {
	print STDERR " -- $i = $AGI{$i}\n";
}

use Time::HiRes ('gettimeofday','usleep','sleep');  # necessary to have perl sleep command of less than one second

use Asterisk::AGI;
my $agi = new Asterisk::AGI;

my $clid = $agi->get_variable('CALLERID');
my $clidname = $agi->get_variable('CALLERIDNAME');

print STDERR "X.  |$clid|$caller_id|$clidname|\n";


### sleep for 5 tenths of a second
usleep(1*500*1000);

print "STREAM FILE silence \"\"\n";

$caller_id = "$caller_id$caller_idname";

@CALLERID_DIGITS = split(//, $caller_id);

foreach (@CALLERID_DIGITS)
{

if ($CALLERID_DIGITS[$g] =~ /\d/) 
	{
	if ($signalonly > 0)
		{print "EXEC SendDTMF $CALLERID_DIGITS[$g] \"\"\n";}
	else
		{print "STREAM FILE $CALLERID_DIGITS[$g] \"\"\n";}
	print STDERR "DIGIT: $CALLERID_DIGITS[$g]\n";
	}
else
	{
	if ($CALLERID_DIGITS[$g] =~ /\#/) 
		{
		if ($signalonly > 0)
			{print "EXEC SendDTMF \# \"\"\n";}
		else
			{print "STREAM FILE hash \"\"\n";}
		}
	if ($CALLERID_DIGITS[$g] =~ /\*/) 
		{
		if ($signalonly > 0)
			{print "EXEC SendDTMF \* \"\"\n";}
		else
			{print "STREAM FILE star \"\"\n";}
		}
	if ($CALLERID_DIGITS[$g] =~ /\,/) 
		{sleep(1);}
	print STDERR "NON-DIGIT: $CALLERID_DIGITS[$g]\n";
	}
$g++;

### sleep for 20 hundredths of a second
usleep(1*150*1000);

print "STREAM FILE silence \"\"\n";

### sleep for 10 hundredths of a second
usleep(1*100*1000);
}

print "STREAM FILE silence \"\"\n";
$result = <STDIN>;
checkresult($result);

exit;

sub checkresult {
	my ($res) = @_;
	my $retval;
	$tests++;
	chomp $res;
	if ($res =~ /^200/) {
		$res =~ /result=(-?\d+)/;
		if (!length($1)) {
			print STDERR "FAIL ($res)\n";
			$fail++;
		} else {
			print STDERR "PASS ($1)\n";
			$pass++;
		}
	} else {
		print STDERR "FAIL (unexpected result '$res')\n";
		$fail++;
	}
}