# --
# Ticket/Number/Random.pm - a ticket number random generator
# Copyright (C) 2001-2006 OTRS GmbH, http://otrs.org/
# --
# $Id: Random.pm,v 1.15 2006/12/21 11:17:05 martin Exp $
# --
# This software comes with ABSOLUTELY NO WARRANTY. For details, see
# the enclosed file COPYING for license information (GPL). If you
# did not receive this file, see http://www.gnu.org/licenses/gpl.txt.
# --
# Note:
# available objects are: ConfigObject, LogObject and DBObject
#
# Generates random ticket numbers like ss.... (e. g. 100057866352, 103745394596, ...)
# --

package Kernel::System::Ticket::Number::Random;

use strict;

use vars qw($VERSION);
$VERSION = '$Revision: 1.15 $';
$VERSION =~ s/^\$.*:\W(.*)\W.+?$/$1/;

sub TicketCreateNumber {
    my $Self = shift;
    # get needed config options
    my $SystemID = $Self->{ConfigObject}->Get('SystemID');
    # random counter
    my $Count = int(rand(9999999999));
    my $Length = length($Count);
    $Length = 10 - $Length;
    # fill up
    foreach (1..$Length) {
        $Count = "0$Count";
    }
    # create new ticket number
    my $Tn = $SystemID.$Count;
    # Check ticket number. If exists generate new one!
    if ($Self->TicketCheckNumber(Tn=>$Tn)) {
        $Self->{LoopProtectionCounter}++;
        if ($Self->{LoopProtectionCounter} >= 6000) {
            # loop protection
            $Self->{LogObject}->Log(
                Priority => 'error',
                Message => "CounterLoopProtection is now $Self->{LoopProtectionCounter}!".
                    " Stoped TicketCreateNumber()!",
            );
            return;
        }
        # create new ticket number again
        $Self->{LogObject}->Log(
            Priority => 'notice',
            Message => "Tn ($Tn) exists! Creating a new one.",
        );
        $Tn = $Self->TicketCreateNumber();
    }
    return $Tn;
}

sub GetTNByString {
    my $Self = shift;
    my $String = shift || return;
    # get needed config options
    my $CheckSystemID = $Self->{ConfigObject}->Get('Ticket::NumberGenerator::CheckSystemID');
    my $SystemID = '';
    if ($CheckSystemID) {
        $SystemID = $Self->{ConfigObject}->Get('SystemID');
    }
    my $TicketHook = $Self->{ConfigObject}->Get('Ticket::Hook');
    my $TicketHookDivider = $Self->{ConfigObject}->Get('Ticket::HookDivider');
    # check current setting
    if ($String =~ /\Q$TicketHook$TicketHookDivider\E($SystemID\d{2,20})/i) {
        return $1;
    }
    else {
        # check default setting
        if ($String =~ /\Q$TicketHook\E:+.{0,2}($SystemID\d{2,20})/i) {
            return $1;
        }
        else {
            return;
        }
    }
}

1;