#!/usr/bin/perl
#/* ========================================
# * ███╗   ███╗██████╗ ██╗ █████╗ ██╗
# * ████╗ ████║██╔══██╗██║██╔══██╗██║
# * ██╔████╔██║██║  ██║██║███████║██║
# * ██║╚██╔╝██║██║  ██║██║██╔══██║██║
# * ██║ ╚═╝ ██║██████╔╝██║██║  ██║███████╗
# * ╚═╝     ╚═╝╚═════╝ ╚═╝╚═╝  ╚═╝╚══════╝
# * ========================================
# * mDial - Omni-Channel Contact Centre Suite.
# * Initially Written by Martin McCarthy.
# * Contributions welcome.
# * Active: 2020 - 2023.
# *
# * This software is licensed under AGPLv2.
# * You can find more information here;
# * https://www.gnu.org/licenses/agpl-3.0.en.html
# * A copy of the license is also shipped with this build.
# *
# * Important note: this software is provided to you free of charge.
# * If you paid for this software, you were ripped off.
# *
# * This project is a fork of the awesome FOSS project, ViCiDial.
# * ViCiDial is copyrighted by Matt Florell and the ViCiDial Group
# * under the AGPLv2 license.
# *
# * You can find out more about ViCiDial;
# * Web: https://www.vicidial.com/
# * Email: Matt Florell <vicidial@gmail.com>
# * IRC: Libera.Chat - ##vicidial
# *
# * Bug reports, feature requests and patches welcome!
# * ======================================== */
$script = 'agi-AGENT_route.agi';
$S      = '*';
$US     = '_';
( $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"; }
$hm             = "$hour$min";
$hm             = ( $hm + 0 );
$now_date_epoch = time();
$now_date       = "$year-$mon-$mday $hour:$min:$sec";
$CLInow_date    = "$year-$mon-$mday\\ $hour:$min:$sec";
$start_time     = $now_date;
$CIDdate        = "$mon$mday$hour$min$sec";
$tsSQLdate      = "$year$mon$mday$hour$min$sec";
$SQLdate        = "$year-$mon-$mday $hour:$min:$sec";
$SQLdateBEGIN   = $SQLdate;
$PATHconf       = '/etc/astguiclient.conf';
open( conf, "$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;
$stmtA =
  "SELECT agi_output,local_gmt FROM servers where server_ip = '$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();
if ( length( $ARGV[0] ) > 1 ) {
    if ($AGILOG) { $agi_string = "Perl Environment Dump:"; &agi_output; }
    $i = 0;
    while ( $#ARGV >= $i ) {
        $args = "$args $ARGV[$i]";
        if ($AGILOG) { $agi_string = "$i|$ARGV[$i]"; &agi_output; }
        $i++;
    }
    @ARGV_vars              = split( /---/, $ARGV[0] );
    $did_settings           = $ARGV_vars[0];
    $in_group               = $ARGV_vars[1];
    $agent_active_filter    = $ARGV_vars[2];
    $user_id_prompt         = $ARGV_vars[3];
    $minimum_user_digits    = $ARGV_vars[4];
    $invalid_prompt         = $ARGV_vars[5];
    $invalid_reenter_prompt = $ARGV_vars[6];
    $retry_attempts         = $ARGV_vars[7];
    $invalid_ingroup        = $ARGV_vars[8];
    $transfer_prompt        = $ARGV_vars[9];
    $transfer_logout_prompt = $ARGV_vars[10];
}
if ( length($did_settings) < 1 )        { $did_settings = 'default'; }
if ( length($in_group) < 1 )            { $in_group     = 'AGENTDIRECT'; }
if ( length($agent_active_filter) < 1 ) { $agent_active_filter = 'ACTIVE'; }
if ( length($invalid_prompt) < 1 )      { $invalid_prompt      = 'invalid'; }
if ( length($retry_attempts) < 1 )      { $retry_attempts      = '3'; }
if ( length($minimum_user_digits) < 1 ) { $minimum_user_digits = 'X'; }
$pound_finish = 0;

if ( $minimum_user_digits =~ /X/ ) {
    $minimum_user_digits = '20';
    $pound_finish        = 1;
}
if ($AGILOG) {
    $agi_string =
"$did_settings|$in_group|$agent_active_filter|$user_id_prompt|$minimum_user_digits|$invalid_prompt|$invalid_reenter_prompt|$retry_attempts|$invalid_ingroup|$transfer_prompt|$transfer_logout_prompt";
    &agi_output;
}
$| = 1;
while (<STDIN>) {
    chomp;
    last unless length($_);
    if ($AGILOG) {
        if (/^agi_(\w+)\:\s+(.*)$/) {
            $AGI{$1} = $2;
        }
    }
    if (/^agi_context\:\s+(.*)$/)   { $context   = $1; }
    if (/^agi_priority\:\s+(.*)$/)  { $priority  = $1; }
    if (/^agi_uniqueid\:\s+(.*)$/)  { $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; }
}
if (   ( $callerid =~ /\".*\"/ )
    && ( ( !$calleridname ) or ( $calleridname =~ /unknown/ ) ) )
{
    $calleridname = $callerid;
    $calleridname =~ s/\<\d\d\d\d\d\d\d\d\d\d\>//gi;
    $calleridname =~ s/\"|\" //gi;
}
$callerid     =~ s/\D|\'//gi;
$calleridname =~ s/unknown|\'//gi;
if ( ( !$callerid ) or ( $callerid =~ /unknown/ ) ) {
    $callerid = $calleridname;
}
$DIDs_in_system = 0;
$stmtA =
"SELECT did_id FROM vicidial_inbound_dids where did_pattern = '$did_settings' and did_active='Y';";
$sthA = $dbhA->prepare($stmtA) or die "preparing: ",        $dbhA->errstr;
$sthA->execute                 or die "executing: $stmtA ", $dbhA->errstr;
$sthArows = $sthA->rows;
if ($AGILOG) { $agi_string = "$stmtA|$sthArows"; &agi_output; }
if ( $sthArows > 0 ) {
    @aryA   = $sthA->fetchrow_array;
    $did_id = $aryA[0];
    $DIDs_in_system++;
}
$sthA->finish();
if ( $sthArows < 1 ) {
    $stmtA =
"SELECT did_id FROM vicidial_inbound_dids where did_pattern = 'default' and did_active='Y';";
    $sthA = $dbhA->prepare($stmtA) or die "preparing: ",        $dbhA->errstr;
    $sthA->execute                 or die "executing: $stmtA ", $dbhA->errstr;
    $DIDs_in_system = $sthA->rows;
    if ($AGILOG) { $agi_string = "$stmtA|$DIDs_in_system"; &agi_output; }
    if ( $DIDs_in_system > 0 ) {
        @aryA   = $sthA->fetchrow_array;
        $did_id = $aryA[0];
    }
    $sthA->finish();
}
$cbc   = 0;
$stmtA = "SELECT ext_context FROM servers where server_ip = '$VARserver_ip';";
$sthA  = $dbhA->prepare($stmtA) or die "preparing: ", $dbhA->errstr;
$sthA->execute or die "executing: $stmtA ", $dbhA->errstr;
$sthArows = $sthA->rows;
if ($AGILOG) { $agi_string = "$stmtA|$sthArows"; &agi_output; }
while ( $sthArows > $cbc ) {
    @aryA          = $sthA->fetchrow_array;
    $DBext_context = $aryA[0];
    if ($DBext_context) { $ext_context = $DBext_context; }
    $cbc++;
}
$sthA->finish();
$active_user    = 0;
$logged_in_user = 0;
if ( length($user_id_prompt) > 0 ) {
    $attempts = 0;
    while ( ( $retry_attempts > $attempts ) && ( $active_user < 1 ) ) {
        $attempts++;
        $AGI->stream_file('sip-silence');
        $AGI->stream_file('sip-silence');
        $AGI->stream_file('sip-silence');
        &user_id_gather;
        &find_if_active_user;
        if ( length($invalid_reenter_prompt) > 0 ) {
            $user_id_prompt = $invalid_reenter_prompt;
        }
    }
}
else {
    &find_if_active_user;
}
if (   ( $agent_active_filter =~ /LOGGED_IN/ )
    && ( $logged_in_user < 1 )
    && ( $active_user > 0 ) )
{
    if ($AGILOG) { $agi_string = "user not logged in"; &agi_output; }
    $transfer_prompt = $transfer_logout_prompt;
    $active_user     = 0;
}
if ( $active_user > 0 ) {
    $did_extension = "99909$S$did_id$S$in_group$S$extension$S";
}
else {
    $AGI->stream_file('sip-silence');
    $AGI->stream_file('sip-silence');
    $AGI->stream_file('sip-silence');
    $AGI->stream_file("$invalid_prompt");
    if ( length($invalid_ingroup) > 1 ) {
        if ($AGILOG) { $agi_string = "user not active"; &agi_output; }
        $did_extension = "99909$S$did_id$S$invalid_ingroup$S$S";
    }
    else {
        $did_extension = "s";
        $ext_context   = $context;
    }
}
if ( length($transfer_prompt) > 1 ) {
    $AGI->stream_file('sip-silence');
    $AGI->stream_file('sip-silence');
    $AGI->stream_file('sip-silence');
    $AGI->stream_file("$transfer_prompt");
}
if ($AGILOG) {
    $agi_string =
"exiting the AGENT app, transferring call to $did_extension @ $ext_context";
    &agi_output;
}
print "SET CONTEXT $ext_context\n";
$result = <STDIN>;
checkresult($result);
print "SET EXTENSION $did_extension\n";
$result = <STDIN>;
checkresult($result);
print "SET PRIORITY 1\n";
$result = <STDIN>;
checkresult($result);
exit;

sub find_if_active_user {
    $stmtA =
"SELECT count(*) FROM vicidial_users where user='$extension' and active='Y';";
    $sthA = $dbhA->prepare($stmtA) or die "preparing: ",        $dbhA->errstr;
    $sthA->execute                 or die "executing: $stmtA ", $dbhA->errstr;
    $sthArows = $sthA->rows;
    if ($AGILOG) { $agi_string = "$stmtA|$sthArows"; &agi_output; }
    if ( $sthArows > 0 ) {
        @aryA        = $sthA->fetchrow_array;
        $active_user = $aryA[0];
    }
    $sthA->finish();
    if ( $agent_active_filter =~ /LOGGED_IN/ ) {
        $stmtA =
          "SELECT count(*) FROM vicidial_live_agents where user='$extension';";
        $sthA = $dbhA->prepare($stmtA) or die "preparing: ", $dbhA->errstr;
        $sthA->execute or die "executing: $stmtA ",          $dbhA->errstr;
        $sthArows = $sthA->rows;
        if ($AGILOG) { $agi_string = "$stmtA|$sthArows"; &agi_output; }
        if ( $sthArows > 0 ) {
            @aryA           = $sthA->fetchrow_array;
            $logged_in_user = $aryA[0];
        }
        $sthA->finish();
    }
}

sub user_id_gather {
    $interrupt_digit = '';
    $interrupt_digit = $AGI->stream_file( "$user_id_prompt", '0123456789' );
    if ($AGILOG) {
        $agi_string = "interrupt_digit |$interrupt_digit|";
        &agi_output;
    }
    $digits_being_entered = 1;
    $extension            = '';
    if ( $interrupt_digit > 0 ) {
        if ( $interrupt_digit == 48 ) { $interrupt_digit = 0; }
        if ( $interrupt_digit == 49 ) { $interrupt_digit = 1; }
        if ( $interrupt_digit == 50 ) { $interrupt_digit = 2; }
        if ( $interrupt_digit == 51 ) { $interrupt_digit = 3; }
        if ( $interrupt_digit == 52 ) { $interrupt_digit = 4; }
        if ( $interrupt_digit == 53 ) { $interrupt_digit = 5; }
        if ( $interrupt_digit == 54 ) { $interrupt_digit = 6; }
        if ( $interrupt_digit == 55 ) { $interrupt_digit = 7; }
        if ( $interrupt_digit == 56 ) { $interrupt_digit = 8; }
        if ( $interrupt_digit == 57 ) { $interrupt_digit = 9; }
        $extension = $interrupt_digit;
    }
    $digit_loop_counter = 0;
    while (( $digits_being_entered > 0 )
        && ( $digit_loop_counter < $minimum_user_digits ) )
    {
        $digit = chr( $AGI->wait_for_digit('10000') )
          ; # wait 10 seconds for input, until the pound key is pressed or X digits
        if ( $digit =~ /\d/ ) {
            $extension = "$extension$digit";
            if ($AGILOG) {
                $agi_string = "digit |$digit|     extension |$extension|";
                &agi_output;
            }
            undef $digit;
        }
        else {
            if ( $pound_finish > 0 ) { $digits_being_entered = 0; }
        }
        $digit_loop_counter++;
    }
    $extension =~ s/\D//gi;
    if ( $extension > 0 ) {
        if ($AGILOG) {
            $agi_string =
              "digit collection done|$digit|     extension |$extension|";
            &agi_output;
        }
    }
}

sub checkresult {
    $pass = 0;
    $fail = 0;
    my ($res) = @_;
    my $retval;
    $tests++;
    chomp $res;
    if ( $res =~ /^200/ ) {
        $res =~ /result=(-?\d+)/;
        if ( !length($1) ) {
            $fail++;
        }
        else {
            $pass++;
        }
    }
    else {
        $fail++;
    }
}

sub agi_output {
    if ( $AGILOG >= 2 ) {
        open( Lout, ">>$AGILOGfile" )
          || die "Can't open $AGILOGfile: $!\n";
        print Lout "$now_date|$script|$agi_string\n";
        close(Lout);
    }
    if ( ( $AGILOG == '1' ) || ( $AGILOG == '3' ) ) {
        print STDERR "$now_date|$script|$agi_string\n";
    }
    $agi_string = '';
}