#!/usr/bin/perl

# getAGENTchannel.agi by Omar Rodriguez  www.ItContinental.com
# Copyright (C) 2025  Matt Florell <vicidial@gmail.com>    LICENSE: AGPLv2
# This script is able to return the name of the channel that belongs to the agent, 
# to allow administrators to whisper to the agents
# Has been made using Vicidial code as Base

# CHANGELOG:
# 150728-1315 - First build
# 150804-0944 - Rewritten to work on multi-server systems and with different dialplan
# 160523-2352 - Fixed issue with local channels in session
# 250103-1608 - Added processing of monitorsession channel variable
#

$script = 'getAGENTchannel.agi';

($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time);
$year = ($year + 1900);
$mon++;
if ($mon < 10) {$mon = "0$mon";}
if ($mday < 10) {$mday = "0$mday";}
if ($hour < 10) {$hour = "0$hour";}
if ($min < 10) {$min = "0$min";}
if ($sec < 10) {$sec = "0$sec";}

# default path to astguiclient configuration file:
$PATHconf =		'/etc/astguiclient.conf';

open(conf, "$PATHconf") || die "can't open $PATHconf: $!\n";
@conf = <conf>;
close(conf);
$i=0;
foreach(@conf)
	{
	$line = $conf[$i];
	$line =~ s/ |>|\n|\r|\t|\#.*|;.*//gi;
	if ( ($line =~ /^PATHhome/) && ($CLIhome < 1) )
		{$PATHhome = $line;   $PATHhome =~ s/.*=//gi;}
	if ( ($line =~ /^PATHlogs/) && ($CLIlogs < 1) )
		{$PATHlogs = $line;   $PATHlogs =~ s/.*=//gi;}
	if ( ($line =~ /^PATHagi/) && ($CLIagi < 1) )
		{$PATHagi = $line;   $PATHagi =~ s/.*=//gi;}
	if ( ($line =~ /^PATHweb/) && ($CLIweb < 1) )
		{$PATHweb = $line;   $PATHweb =~ s/.*=//gi;}
	if ( ($line =~ /^PATHsounds/) && ($CLIsounds < 1) )
		{$PATHsounds = $line;   $PATHsounds =~ s/.*=//gi;}
	if ( ($line =~ /^PATHmonitor/) && ($CLImonitor < 1) )
		{$PATHmonitor = $line;   $PATHmonitor =~ s/.*=//gi;}
	if ( ($line =~ /^VARserver_ip/) && ($CLIserver_ip < 1) )
		{$VARserver_ip = $line;   $VARserver_ip =~ s/.*=//gi;}
	if ( ($line =~ /^VARDB_server/) && ($CLIDB_server < 1) )
		{$VARDB_server = $line;   $VARDB_server =~ s/.*=//gi;}
	if ( ($line =~ /^VARDB_database/) && ($CLIDB_database < 1) )
		{$VARDB_database = $line;   $VARDB_database =~ s/.*=//gi;}
	if ( ($line =~ /^VARDB_user/) && ($CLIDB_user < 1) )
		{$VARDB_user = $line;   $VARDB_user =~ s/.*=//gi;}
	if ( ($line =~ /^VARDB_pass/) && ($CLIDB_pass < 1) )
		{$VARDB_pass = $line;   $VARDB_pass =~ s/.*=//gi;}
	if ( ($line =~ /^VARDB_port/) && ($CLIDB_port < 1) )
		{$VARDB_port = $line;   $VARDB_port =~ s/.*=//gi;}
	$i++;
	}

if (!$VARDB_port)	{$VARDB_port='3306';}
if (!$AGILOGfile)	{$AGILOGfile = "$PATHlogs/agiout.$year-$mon-$mday";}

use DBI;
use Time::HiRes ('gettimeofday','usleep','sleep');  # necessary to have perl sleep command of less than one second
use Asterisk::AGI;
$AGI = new Asterisk::AGI;

$dbhA = DBI->connect("DBI:mysql:$VARDB_database:$VARDB_server:$VARDB_port", "$VARDB_user", "$VARDB_pass")
    or die "Couldn't connect to database: " . DBI->errstr;

### Grab Server values from the database
$stmtA = "SELECT agi_output,local_gmt FROM servers where server_ip = '$VARserver_ip';";
$sthA = $dbhA->prepare($stmtA) or die "preparing: ",$dbhA->errstr;
$sthA->execute or die "executing: $stmtA ", $dbhA->errstr;
$sthArows=$sthA->rows;
if ($sthArows > 0)
	{
	$AGILOG = '0';
	@aryA = $sthA->fetchrow_array;
	$DBagi_output =		$aryA[0];
	$local_gmt =		$aryA[1];
	if ($DBagi_output =~ /STDERR/)	{$AGILOG = '1';}
	if ($DBagi_output =~ /FILE/)	{$AGILOG = '2';}
	if ($DBagi_output =~ /BOTH/)	{$AGILOG = '3';}
	}
$sthA->finish();

$agent_zap_channel =		"101";
########## FIND playfilename  ##########

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

	if (/^agi_uniqueid\:\s+(.*)$/)		{$unique_id = $1; $uniqueid = $unique_id;}
	if (/^agi_channel\:\s+(.*)$/)		{$channel = $1;}
	if (/^agi_extension\:\s+(.*)$/)		{$extension = $1;}
	if (/^agi_type\:\s+(.*)$/)			{$type = $1;}
	if (/^agi_callerid\:\s+(.*)$/)		{$callerid = $1;}
	if (/^agi_calleridname\:\s+(.*)$/)	{$calleridname = $1;}
	}

# check for monitoruser variable, if not set, then set it

$monitorsession = $AGI->get_variable('monitorsession');

if ( (length($extension) < 7) && (length($monitorsession) >= 7) )
	{
	if ($AGILOG) {$agi_string = "Setting session with channel variable: |$monitorsession -> $extension| Channel: $channel| CID: $calleridname <$callerid>|";   &agi_output;}
	$extension = $monitorsession;
	}
if (length($extension) > 7) 
	{$extension = substr($extension, -7);}
if ($AGILOG) {$agi_string = "Agent session: |$extension| Channel: $channel| CID: $calleridname <$callerid>|";   &agi_output;}

if (length($monitorsession) < 7) 
	{
	if ($AGILOG) {$agi_string = "Setting session channel variable: |$extension| Channel: $channel| CID: $calleridname <$callerid>|";   &agi_output;}
	$AGI->exec("EXEC Set(__monitorsession=$extension)");
	}

#$stmtA = "SELECT channel   FROM vicidial_live_agents  WHERE conf_exten = '$canal' AND ifnull(trim(channel), '') <> ''      and (channel in (select channel from live_channels) or comments='MANUAL')  LIMIT 1";

$stmtA = "SELECT channel FROM live_sip_channels WHERE server_ip='$VARserver_ip' AND extension=right('$extension',7) AND ifnull(trim(channel), '') <> '' limit 10;";

#$AGI->verbose($stmtA); 

$sthA = $dbhA->prepare($stmtA) or die "preparing: ",$dbhA->errstr;
$sthA->execute or die "executing: $stmtA ", $dbhA->errstr;
$sthArows=$sthA->rows;
$s=0;
while ($sthArows > $s)
	{
	@aryA = $sthA->fetchrow_array;
	# channel priority(highest to lowest): SIP, IAX, Local
	if ($aryA[0] =~ /^SIP/i) 
		{$agent_zap_channel =		$aryA[0];}
	if ( ($aryA[0] =~ /^IAX/i) && ( (length($agent_zap_channel) < 4) || ($agent_zap_channel =~ /^Local/i) ) )
		{$agent_zap_channel =		$aryA[0];}
	if ( ($aryA[0] =~ /^Local/i) && (length($agent_zap_channel) < 4) ) 
		{$agent_zap_channel =		$aryA[0];}
	$s++;
	}
$sthA->finish();
if ($AGILOG) {$agi_string = "$sthArows|$agent_zap_channel|$stmtA|";   &agi_output;}

#$AGI->verbose("agent_zap_channel: $agent_zap_channel"); 

$AGI->set_variable('agent_zap_channel', $agent_zap_channel);
$AGI->exec("EXEC Set(__manager_zap_channel=$channel)");

exit;



sub agi_output
	{
	($Lsec,$Lmin,$Lhour,$Lmday,$Lmon,$Lyear,$Lwday,$Lyday,$Lisdst) = localtime(time);
	if ($Lhour < 10) {$Lhour = "0$Lhour";}
	if ($Lmin < 10) {$Lmin = "0$Lmin";}
	if ($Lsec < 10) {$Lsec = "0$Lsec";}
	$LOGtime = "$Lhour:$Lmin:$Lsec";

	if ($AGILOG >=2)
		{
		### open the log file for writing ###
		open(Lout, ">>$AGILOGfile")
				|| die "Can't open $AGILOGfile: $!\n";
		print Lout "$LOGtime|$LOGtime|$script|$agi_string\n";
		close(Lout);
		}
		### send to STDERR writing ###
	if ( ($AGILOG == '1') || ($AGILOG == '3') )
		{print STDERR "$LOGtime|$LOGtime|$script|$agi_string\n";}
	$agi_string='';
	}