#!/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!
# * ======================================== */
$PATHconf = '/etc/astguiclient.conf';
if ( $ARGV[0] =~ /--help/ ) {
    print "VD_email_inbound.pl\n";
    print "\n";
    print
"This script is responsible for assigning transferred and new emails to\n";
    print
"available agents.  This is done by repeatedly checking for transferred emails\n";
    print
"waiting to be assigned sorted by email group rank, then all new emails\n";
    print
"waiting to be assigned, also sorted by email group rank.  Then it checks\n";
    print
"the vicidial_live_agents table for agents with READY or CLOSER status.\n";
    print "\n";
    print
"As it cycles through the prioritized emails to assign, it takes the inbound\n";
    print
"group each email belongs to, selects the agent it should be assigned to based\n";
    print
"on the next_agent_call setting, and puts that lead in QUEUE, as well as putting\n";
    print
"the chosen agent in a special MQUEUE status.  Programming in other parts of \n";
    print
"Vicidial will cause these emails to be displayed in the agent's interface.\n";
    print "\n";
    print
"This script should be set up on ONLY ONE SERVER. You set it up using the \"E\"\n";
    print
"keepalive option in the /etc/astguiclient.conf file on one of the servers in\n";
    print "your cluster.\n";
    print "\n";
    print
"Use the --debug variable when executing the script to have it print out the SQL\n";
    print "statements it is attempting to execute.\n";
    exit;
}
open( conf, "$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++;
}
$| = 1;
if ( !$VARDB_port )  { $VARDB_port  = '3306'; }
if ( !$AGILOGfile )  { $AGILOGfile  = "$PATHlogs/agiout.$year-$mon-$mday"; }
if ( !$PRSLOGfile )  { $PRSLOGfile  = "$PATHlogs/prsout.$year-$mon-$mday"; }
if ( !$PRSTESTfile ) { $PRSTESTfile = "$PATHlogs/prstest.$year-$mon-$mday"; }
if ( !$ERRLOGfile )  { $ERRLOGfile  = "$PATHlogs/MySQLerror.$year-$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;
$dbhB = DBI->connect( "DBI:mysql:$VARDB_database:$VARDB_server:$VARDB_port",
    "$VARDB_user", "$VARDB_pass" )
  or die "Couldn't connect to database: " . DBI->errstr;
( $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();
$start_epoch        = $now_date_epoch;
$now_date           = "$year-$mon-$mday $hour:$min:$sec";
$CLInow_date        = "$year-$mon-$mday\\ $hour:$min:$sec";
$YMD                = "$year-$mon-$mday";
$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;
$ORIGINAL_call_time = $SQLdate;

while ( length($CIDdate) > 9 ) {
    $CIDdate =~ s/^.//gi;
}    # 0902235959 changed to 902235959
$BDtarget = ( $now_date_epoch - 5 );
( $Bsec, $Bmin, $Bhour, $Bmday, $Bmon, $Byear, $Bwday, $Byday, $Bisdst ) =
  localtime($BDtarget);
$Byear = ( $Byear + 1900 );
$Bmon++;
if ( $Bmon < 10 )  { $Bmon  = "0$Bmon"; }
if ( $Bmday < 10 ) { $Bmday = "0$Bmday"; }
if ( $Bhour < 10 ) { $Bhour = "0$Bhour"; }
if ( $Bmin < 10 )  { $Bmin  = "0$Bmin"; }
if ( $Bsec < 10 )  { $Bsec  = "0$Bsec"; }
$BDtsSQLdate = "$Byear$Bmon$Bmday$Bhour$Bmin$Bsec";

for ( $i = 0 ; $i <= 1000000 ; $i++ ) {
    $vci             = 0;
    $INBOUNDcampsSQL = '';
    $stmtA =
"SELECT campaign_id FROM vicidial_campaigns where active='Y' and campaign_allow_inbound='Y';";
    $sthA = $dbhA->prepare($stmtA) or die "preparing: ",        $dbhA->errstr;
    $sthA->execute                 or die "executing: $stmtA ", $dbhA->errstr;
    $sthArows     = $sthA->rows;
    $dbhP         = $dbhA;
    $mysql_count  = '02033';
    $MEL_aff_rows = $sthArows;
    &mysql_error_logging;

    while ( $sthArows > $vci ) {
        @aryA = $sthA->fetchrow_array;
        if ( $vci < 1 ) { $INBOUNDcampsSQL = "'$aryA[0]'"; }
        else            { $INBOUNDcampsSQL .= ",'$aryA[0]'"; }
        $vci++;
    }
    $sthA->finish();
    $order_stmt =
"select group_id, next_agent_call from vicidial_inbound_groups where group_handling='EMAIL' and active='Y'";
    $order_rslt = $dbhA->prepare($order_stmt);
    $order_rslt->execute or die "executing: $order_stmt ", $dbhA->errstr;
    if ( $order_rslt->rows > 0 ) {
        %group_orders = ();
        while ( @order_row = $order_rslt->fetchrow_array ) {
            $group_orders{"$order_row[0]"} = $order_row[1];
        }
        $email_ct = 0;
        $xfer_stmt =
"select email_row_id, vicidial_xfer_log.lead_id, vicidial_xfer_log.campaign_id, vicidial_inbound_groups.next_agent_call, vicidial_xfer_log.user from vicidial_email_list, vicidial_inbound_groups, vicidial_xfer_log where vicidial_inbound_groups.group_handling='EMAIL' and vicidial_inbound_groups.active='Y' and vicidial_inbound_groups.group_id=vicidial_xfer_log.campaign_id and vicidial_xfer_log.closer='EMAIL_XFER' and vicidial_xfer_log.lead_id=vicidial_email_list.lead_id and vicidial_xfer_log.xfercallid=vicidial_email_list.xfercallid order by queue_priority desc, email_date asc";
        if ( $ARGV[0] =~ /debug/i ) { print $xfer_stmt. "\n"; }
        $xfer_rslt = $dbhB->prepare($xfer_stmt);
        $xfer_rslt->execute or die "executing: $xfer_stmt ", $dbhB->errstr;
        $xfers_to_assign = $xfer_rslt->rows;
        if ( $xfers_to_assign > 0 ) {
            while ( @xfer_row = $xfer_rslt->fetchrow_array ) {
                $row_id_ary[$email_ct]     = $xfer_row[0];
                $lead_id_ary[$email_ct]    = $xfer_row[1];
                $group_id_ary[$email_ct]   = $xfer_row[2];
                $user_id_ary[$email_ct]    = $xfer_row[3];
                $email_type_ary[$email_ct] = "XFER";
                $email_ct++;
            }
        }
        $xfer_rslt->finish();
        $inb_stmt =
"select email_row_id, lead_id, vicidial_email_list.group_id, vicidial_inbound_groups.next_agent_call, vicidial_email_list.user from vicidial_email_list, vicidial_inbound_groups where group_handling='EMAIL' and active='Y' and vicidial_inbound_groups.group_id=vicidial_email_list.group_id and vicidial_email_list.status='NEW' order by queue_priority desc, email_date asc";
        if ( $ARGV[0] =~ /debug/i ) { print $inb_stmt. "\n"; }
        $inb_rslt = $dbhB->prepare($inb_stmt);
        $inb_rslt->execute or die "executing: $inb_stmt ", $dbhB->errstr;
        $emails_to_assign = $inb_rslt->rows;
        if ( $emails_to_assign > 0 ) {
            while ( @inb_row = $inb_rslt->fetchrow_array ) {
                $row_id_ary[$email_ct]     = $inb_row[0];
                $lead_id_ary[$email_ct]    = $inb_row[1];
                $group_id_ary[$email_ct]   = $inb_row[2];
                $user_id_ary[$email_ct]    = $xfer_row[3];
                $email_type_ary[$email_ct] = "INCOMING";
                $email_ct++;
            }
        }
        $inb_rslt->finish();
        if ( $email_ct > 0 ) { AssignAgents(); }
        else {
            if ( $ARGV[0] =~ /debug/i ) {
                print "**** NO EMAILS TO QUEUE ****\n";
            }
        }
    }
    usleep(100000);
}

sub AssignAgents() {
    if ( $ARGV[0] =~ /debug/i ) {
        print $xfers_to_assign
          . " transfers to assign\n"
          . $emails_to_assign
          . " incoming emails to assign...\n";
    }
    for ( $q = 0 ; $q < $email_ct ; $q++ ) {
        $CAMP_callorder        = $group_orders{"$group_id_ary[$q]"};
        $email_row_id          = $row_id_ary[$q];
        $lead_id               = $lead_id_ary[$q];
        $email_type            = $email_type_ary[$q];
        $group_id              = $group_id_ary[$q];
        $user_id               = $user_id_ary[$q];
        $ADUfindSQL            = '';
        $user                  = '';
        $ring_no_answer_agents = "''";
        $aco_sub               = 0;
        $agent_call_order      = 'order by last_call_finish';

        if ( $CAMP_callorder =~ /longest_wait_time/i ) {
            $agent_call_order =
              'order by vicidial_live_agents.last_state_change';
        }
        if ( $CAMP_callorder =~ /overall_user_level/i ) {
            $agent_call_order = 'order by user_level desc,last_call_finish';
        }
        if ( $CAMP_callorder =~ /oldest_call_start/i ) {
            $agent_call_order = 'order by vicidial_live_agents.last_call_time';
        }    #
        if ( $CAMP_callorder =~ /oldest_call_finish/i ) {
            $agent_call_order =
              'order by vicidial_live_agents.last_call_finish';
        }
        if ( $CAMP_callorder =~ /oldest_inbound_call_start/i ) {
            $agent_call_order =
              'order by vicidial_live_agents.last_inbound_call_time';
        }    #
        if ( $CAMP_callorder =~ /oldest_inbound_call_finish/i ) {
            $agent_call_order =
              'order by vicidial_live_agents.last_inbound_call_finish';
        }    #
        if ( $CAMP_callorder =~ /oldest_inbound_filtered_call_start/i ) {
            $agent_call_order =
              'order by vicidial_live_agents.last_inbound_call_time_filtered';
        }
        if ( $CAMP_callorder =~ /oldest_inbound_filtered_call_finish/i ) {
            $agent_call_order =
              'order by vicidial_live_agents.last_inbound_call_finish_filtered';
        }
        if ( $CAMP_callorder =~ /random/i ) {
            $agent_call_order = 'order by random_id';
        }
        if ( $CAMP_callorder =~ /campaign_rank/i ) {
            $agent_call_order =
              'order by campaign_weight desc,last_call_finish';
        }
        if ( $CAMP_callorder =~ /fewest_calls_campaign/i ) {
            $agent_call_order =
'order by vicidial_live_agents.calls_today,vicidial_live_agents.last_call_finish';
        }
        if ( $CAMP_callorder =~ /ingroup_grade_random/i ) {
            $aco_sub          = 1;
            $agent_call_order = 'order by random_id';
        }
        if ( $CAMP_callorder =~ /campaign_grade_random/i ) {
            $aco_sub          = 1;
            $agent_call_order = 'order by random_id';
        }
        if ( $CAMP_callorder =~ /inbound_group_rank/i ) {
            $aco_sub = 1;
            $agent_call_order =
'order by group_weight desc,vicidial_live_inbound_agents.last_call_finish';
        }
        if ( $CAMP_callorder =~ /fewest_calls$/i ) {
            $aco_sub = 1;
            $agent_call_order =
'order by vicidial_live_inbound_agents.calls_today,vicidial_live_inbound_agents.last_call_finish';
        }
        if ( $aco_sub > 0 ) {
            $stmtA =
"LOCK TABLES vicidial_live_agents WRITE, vicidial_live_inbound_agents WRITE;";
            my $LOCKaffected_rows = $dbhA->do($stmtA);
            $stmtA =
"SELECT vicidial_live_agents.user from vicidial_live_agents, vicidial_live_inbound_agents WHERE vicidial_live_agents.user=vicidial_live_inbound_agents.user and status IN('CLOSER','READY') and lead_id<1 $ADUfindSQL and vicidial_live_inbound_agents.group_id='$group_id' and last_update_time > '$BDtsSQLdate' and vicidial_live_agents.user NOT IN($ring_no_answer_agents$vlia_users) and ring_callerid='' $qp_groupWAIT_camp_SQL $agent_call_order limit 1;";
            $sthA = $dbhA->prepare($stmtA) or die "preparing: ", $dbhA->errstr;
            $sthA->execute or die "executing: $stmtA ",          $dbhA->errstr;
            $sthArows = $sthA->rows;
            if ( $ARGV[0] =~ /debug/i ) { print $stmtA. "\n"; }
            if ( $sthArows > 0 ) {
                while ( @user_row = $sthA->fetchrow_array ) {
                    $user = $user_row[0];
                }
                $sthA->finish();
            }
            if ( $user ne "" ) {
                if ( $email_type eq "XFER" ) {
                    $user_clause = " and user!='$user'";
                }
                else {
                    $user_clause = "";
                }
                $upd_stmt =
"update vicidial_email_list set status='QUEUE', user='$user' where email_row_id='$email_row_id' $user_clause";
                $upd_rslt = $dbhB->prepare($upd_stmt);
                $upd_rslt->execute
                  or die "executing: $upd_stmt ", $dbhB->errstr;
                if ( $ARGV[0] =~ /debug/i ) { print $upd_stmt. "\n"; }
                if ( $upd_rslt->rows > 0 ) {
                    $upd_rslt->finish();
                    $upd_stmt =
"update vicidial_live_agents set status='MQUEUE' where user='$user'";
                    $upd_rslt = $dbhA->prepare($upd_stmt);
                    $upd_rslt->execute
                      or die "executing: $upd_stmt ", $dbhB->errstr;
                    if ( $ARGV[0] =~ /debug/i ) { print $upd_stmt. "\n"; }
                }
                $upd_rslt->finish();
            }
            $stmtA = "UNLOCK TABLES;";
            my $LOCKaffected_rows = $dbhA->do($stmtA);
        }
        else {
            $stmtA = "LOCK TABLES vicidial_live_agents WRITE;";
            my $LOCKaffected_rows = $dbhA->do($stmtA);
            $dbhP         = $dbhA;
            $mysql_count  = '02158';
            $MEL_aff_rows = $LOCKaffected_rows;
            &mysql_error_logging;
            $SQL_group_id = $group_id;
            $SQL_group_id =~ s/_/\\_/gi;
            $stmtA =
"SELECT user FROM vicidial_live_agents where status IN('CLOSER','READY') and lead_id<1 $ADUfindSQL and campaign_id IN($INBOUNDcampsSQL) and closer_campaigns LIKE \"% $SQL_group_id %\" and last_update_time > '$BDtsSQLdate' and vicidial_live_agents.user NOT IN($ring_no_answer_agents) $qp_groupWAIT_SQL $qp_groupWAIT_camp_SQL $agent_call_order limit 1;";
            $sthA = $dbhA->prepare($stmtA) or die "preparing: ", $dbhA->errstr;
            $sthA->execute or die "executing: $stmtA ",          $dbhA->errstr;
            if ( $ARGV[0] =~ /debug/i ) { print $stmtA. "\n"; }
            $sthArows = $sthA->rows;

            if ( $sthArows > 0 ) {
                while ( @user_row = $sthA->fetchrow_array ) {
                    $user = $user_row[0];
                }
                $sthA->finish();
            }
            if ( $user ne "" ) {
                if ( $email_type eq "XFER" ) {
                    $user_clause = " and user!='$user'";
                }
                else {
                    $user_clause = "";
                }
                $upd_stmt =
"update vicidial_email_list set status='QUEUE', user='$user' where email_row_id='$email_row_id' $user_clause";
                $upd_rslt = $dbhB->prepare($upd_stmt);
                $upd_rslt->execute
                  or die "executing: $upd_stmt ", $dbhB->errstr;
                if ( $ARGV[0] =~ /debug/i ) { print $upd_stmt. "\n"; }
                if ( $upd_rslt->rows > 0 ) {
                    $upd_rslt->finish();
                    $upd_stmt =
"update vicidial_live_agents set status='MQUEUE' where user='$user'";
                    $upd_rslt = $dbhA->prepare($upd_stmt);
                    $upd_rslt->execute
                      or die "executing: $upd_stmt ", $dbhB->errstr;
                    if ( $ARGV[0] =~ /debug/i ) { print $upd_stmt. "\n"; }
                }
                $upd_rslt->finish();
            }
            $stmtA = "UNLOCK TABLES;";
            my $LOCKaffected_rows = $dbhA->do($stmtA);
        }
    }
    if ( $ARGV[0] =~ /debug/i ) { print "\n\n"; }
}

sub mysql_error_logging {
    ( $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";
    $errno   = '';
    $error   = '';
    if ( ( $mel > 0 ) || ( $one_mysql_log > 0 ) ) {
        $errno = $dbhP->err();
        if ( ( $errno > 0 ) || ( $mel > 1 ) || ( $one_mysql_log > 0 ) ) {
            $error = $dbhP->errstr();
            open( Eout, ">>$ERRLOGfile" )
              || die "Can't open $ERRLOGfile: $!\n";
            print Eout
"$now_date|$LOGtime|$script|$mysql_count|$MEL_aff_rows|$errno|$error|$stmtA|$callerid|$insert_lead_id|\n";
            close(Eout);
        }
    }
    $one_mysql_log = 0;
}