# --
# Kernel/System/Queue.pm - lib for queue functions
# Copyright (C) 2001-2010 OTRS AG, http://otrs.org/
# --
# $Id: Queue.pm,v 1.128 2010/12/23 17:42:36 cg Exp $
# --
# This software comes with ABSOLUTELY NO WARRANTY. For details, see
# the enclosed file COPYING for license information (AGPL). If you
# did not receive this file, see http://www.gnu.org/licenses/agpl.txt.
# --

package Kernel::System::Queue;

use strict;
use warnings;

use Kernel::System::StandardResponse;
use Kernel::System::Group;
use Kernel::System::CustomerGroup;
use Kernel::System::Valid;
use Kernel::System::CacheInternal;
use Kernel::System::Time;
use Kernel::System::SysConfig;

use vars qw($VERSION);
$VERSION = qw($Revision: 1.128 $) [1];

=head1 NAME

Kernel::System::Queue - queue lib

=head1 SYNOPSIS

All queue functions. E. g. to add queue or other functions.

=head1 PUBLIC INTERFACE

=over 4

=cut

=item new()

create an object

    use Kernel::Config;
    use Kernel::System::Encode;
    use Kernel::System::Log;
    use Kernel::System::Main;
    use Kernel::System::DB;
    use Kernel::System::Queue;

    my $ConfigObject = Kernel::Config->new();
    my $EncodeObject = Kernel::System::Encode->new(
        ConfigObject => $ConfigObject,
    );
    my $LogObject = Kernel::System::Log->new(
        ConfigObject => $ConfigObject,
        EncodeObject => $EncodeObject,
    );
    my $MainObject = Kernel::System::Main->new(
        ConfigObject => $ConfigObject,
        EncodeObject => $EncodeObject,
        LogObject    => $LogObject,
    );
    my $DBObject = Kernel::System::DB->new(
        ConfigObject => $ConfigObject,
        EncodeObject => $EncodeObject,
        LogObject    => $LogObject,
        MainObject   => $MainObject,
    );
    my $QueueObject = Kernel::System::Queue->new(
        ConfigObject        => $ConfigObject,
        LogObject           => $LogObject,
        DBObject            => $DBObject,
        MainObject          => $MainObject,
        EncodeObject        => $EncodeObject,
        GroupObject         => $GroupObject, # if given
        CustomerGroupObject => $CustomerGroupObject, # if given
    );

=cut

sub new {
    my ( $Type, %Param ) = @_;

    # allocate new hash for object
    my $Self = {};
    bless( $Self, $Type );

    $Self->{QueueID} = $Param{QueueID} || '';

    # check needed objects
    for (qw(DBObject ConfigObject LogObject MainObject EncodeObject)) {
        $Self->{$_} = $Param{$_} || die "Got no $_!";
    }
    $Self->{ValidObject}         = Kernel::System::Valid->new(%Param);
    $Self->{CacheInternalObject} = Kernel::System::CacheInternal->new(
        %Param,
        Type => 'Queue',
        TTL  => 60 * 60 * 3,
    );

    # lib object
    $Self->{StandardResponseObject} = Kernel::System::StandardResponse->new(%Param);
    if ( !$Param{GroupObject} ) {
        $Self->{GroupObject} = Kernel::System::Group->new(%Param);
    }
    else {
        $Self->{GroupObject} = $Param{GroupObject};
    }
    if ( !$Param{CustomerGroupObject} ) {
        $Self->{CustomerGroupObject} = Kernel::System::CustomerGroup->new(%Param);
    }
    else {
        $Self->{CustomerGroupObject} = $Param{CustomerGroupObject};
    }

    # load generator preferences module
    my $GeneratorModule = $Self->{ConfigObject}->Get('Queue::PreferencesModule')
        || 'Kernel::System::Queue::PreferencesDB';
    if ( $Self->{MainObject}->Require($GeneratorModule) ) {
        $Self->{PreferencesObject} = $GeneratorModule->new(%Param);
    }

    # --------------------------------------------------- #
    #  default queue  settings                            #
    #  these settings are used by the CLI version         #
    # --------------------------------------------------- #
    $Self->{QueueDefaults} = {
        Calendar            => '',
        UnlockTimeout       => 0,
        FirstResponseTime   => 0,
        FirstResponseNotify => 0,
        UpdateTime          => 0,
        UpdateNotify        => 0,
        SolutionTime        => 0,
        SolutionNotify      => 0,
        FollowUpLock        => 0,
        SystemAddressID     => 1,
        SalutationID        => 1,
        SignatureID         => 1,
        FollowUpID          => 1,
        FollowUpLock        => 0,
    };

    return $Self;
}

=item GetSystemAddress()

get a queue system email address as hash (Email, RealName)

    my %Address = $QueueObject->GetSystemAddress(
        QueueID => 123,
    );

=cut

sub GetSystemAddress {
    my ( $Self, %Param ) = @_;

    my %Address;
    my $QueueID = $Param{QueueID} || $Self->{QueueID};
    return if !$Self->{DBObject}->Prepare(
        SQL => 'SELECT sa.value0, sa.value1 FROM system_address sa, queue sq '
            . 'WHERE sq.id = ? AND sa.id = sq.system_address_id',
        Bind => [ \$QueueID ],
    );
    while ( my @Row = $Self->{DBObject}->FetchrowArray() ) {
        $Address{Email}    = $Row[0];
        $Address{RealName} = $Row[1];
    }

    # prepare realname quote
    if ( $Address{RealName} =~ /(,|@|\(|\)|:)/ && $Address{RealName} !~ /^("|')/ ) {
        $Address{RealName} =~ s/"/\"/g;
        $Address{RealName} = '"' . $Address{RealName} . '"';
    }
    return %Address;
}

=item GetSignature()

get a queue signature

    my $Signature = $QueueObject->GetSignature(QueueID => 123);

=cut

sub GetSignature {
    my ( $Self, %Param ) = @_;

    # check needed stuff
    if ( !$Param{QueueID} ) {
        $Self->{LogObject}->Log( Priority => 'error', Message => 'Need QueueID!' );
        return;
    }

    # sql
    return if !$Self->{DBObject}->Prepare(
        SQL => 'SELECT text FROM signature si, queue sq '
            . ' WHERE sq.id = ? AND sq.signature_id = si.id',
        Bind => [ \$Param{QueueID} ],
    );
    my $String = '';
    while ( my @Row = $Self->{DBObject}->FetchrowArray() ) {
        $String = $Row[0];
    }
    return $String;
}

# for comapt!
sub SetQueueStandardResponse {
    my ( $Self, %Param ) = @_;

    if ( !$Param{ResponseID} || !$Param{QueueID} || !$Param{UserID} ) {
        $Self->{LogObject}->Log(
            Priority => 'error',
            Message  => "Need ResponseID, QueueID and UserID!"
        );
        return;
    }

    # sql
    return $Self->{DBObject}->Do(
        SQL => 'INSERT INTO queue_standard_response '
            . '(queue_id, standard_response_id, create_time, create_by, change_time, change_by)'
            . ' VALUES ( ?, ?, current_timestamp, ?, current_timestamp, ?)',
        Bind => [ \$Param{QueueID}, \$Param{ResponseID}, \$Param{UserID}, \$Param{UserID} ],
    );
}

=item GetStandardResponses()

get std responses of a queue

    my %Responses = $QueueObject->GetStandardResponses( QueueID => 123 );

    my %Queues = $QueueObject->GetStandardResponses( StandardResponseID => 123 );

=cut

sub GetStandardResponses {
    my ( $Self, %Param ) = @_;

    # check needed stuff
    if ( !$Param{QueueID} && !$Param{StandardResponseID} ) {
        $Self->{LogObject}
            ->Log( Priority => 'error', Message => 'Got no StandardResponseID or QueueID!' );
        return;
    }

    if ( $Param{QueueID} ) {

        # check if this result is present
        if ( $Self->{"StandardResponses::$Param{QueueID}"} ) {
            return %{ $Self->{"StandardResponses::$Param{QueueID}"} };
        }

        # get std. responses
        my $SQL = "SELECT sr.id, sr.name "
            . " FROM standard_response sr, queue_standard_response qsr WHERE "
            . " qsr.queue_id IN ("
            . $Self->{DBObject}->Quote( $Param{QueueID}, 'Integer' )
            . ") AND "
            . " qsr.standard_response_id = sr.id AND "
            . " sr.valid_id IN ( ${\(join ', ', $Self->{ValidObject}->ValidIDsGet())} )"
            . " ORDER BY sr.name";
        return if !$Self->{DBObject}->Prepare( SQL => $SQL );
        my %StandardResponses;

        while ( my @Row = $Self->{DBObject}->FetchrowArray() ) {
            $StandardResponses{ $Row[0] } = $Row[1];
        }

        # store std responses
        $Self->{"StandardResponses::$Param{QueueID}"} = \%StandardResponses;

        # return responses
        return %StandardResponses;
    }

    else {

        # check if this result is present
        if ( $Self->{"Queues::$Param{StandardResponseID}"} ) {
            return %{ $Self->{"Queues::$Param{StandardResponseID}"} };
        }

        # get queues

        my $SQL = "SELECT q.id, q.name "
            . " FROM queue q, queue_standard_response qsr WHERE "
            . " qsr.standard_response_id IN ("
            . $Self->{DBObject}->Quote( $Param{StandardResponseID}, 'Integer' )
            . ") AND "
            . " qsr.queue_id = q.id AND "
            . " q.valid_id IN ( ${\(join ', ', $Self->{ValidObject}->ValidIDsGet())} )"
            . " ORDER BY q.name";
        return if !$Self->{DBObject}->Prepare( SQL => $SQL );
        my %Queues;

        while ( my @Row = $Self->{DBObject}->FetchrowArray() ) {
            $Queues{ $Row[0] } = $Row[1];
        }

        # store queues
        $Self->{"Queues::$Param{StandardResponseID}"} = \%Queues;

        # return queues
        return %Queues;

    }
}

=item GetAllQueues()

get all valid system queues

    my %Queues = $QueueObject->GetAllQueues();

get all system queues of a user with permission type (e. g. ro, move_into, rw, ...)

    my %Queues = $QueueObject->GetAllQueues( UserID => 123, Type => 'ro' );

=cut

sub GetAllQueues {
    my ( $Self, %Param ) = @_;

    my $Type = $Param{Type} || 'ro';

    # fetch all queues
    if ( $Param{UserID} ) {
        if ( $Self->{"GetAllQueues::UserID::$Param{UserID}"} ) {
            return %{ $Self->{"GetAllQueues::UserID::$Param{UserID}"} };
        }
        my @GroupIDs = $Self->{GroupObject}->GroupMemberList(
            UserID => $Param{UserID},
            Type   => $Type,
            Result => 'ID',
        );
        if (@GroupIDs) {
            my $SQL = "SELECT id, name FROM queue WHERE "
                . " group_id IN ( ${\(join ', ', @GroupIDs)} ) AND "
                . " valid_id IN ( ${\(join ', ', $Self->{ValidObject}->ValidIDsGet())} )";
            return if !$Self->{DBObject}->Prepare( SQL => $SQL );
        }
        else {
            return;
        }
    }
    elsif ( $Param{CustomerUserID} ) {
        if ( $Self->{"GetAllQueues::CustomerUserID::$Param{CustomerUserID}"} ) {
            return %{ $Self->{"GetAllQueues::CustomerUserID::$Param{CustomerUserID}"} };
        }
        my @GroupIDs = $Self->{CustomerGroupObject}->GroupMemberList(
            UserID => $Param{CustomerUserID},
            Type   => $Type,
            Result => 'ID',
        );
        return if !@GroupIDs;

        my $SQL = "SELECT id, name FROM queue WHERE "
            . " group_id IN ( ${\(join ', ', @GroupIDs)} ) AND "
            . " valid_id IN ( ${\(join ', ', $Self->{ValidObject}->ValidIDsGet())} )";
        return if !$Self->{DBObject}->Prepare( SQL => $SQL );
    }
    else {
        if ( $Self->{GetAllQueues} ) {
            return %{ $Self->{GetAllQueues} };
        }
        return if !$Self->{DBObject}->Prepare(
            SQL => "SELECT id, name FROM queue WHERE valid_id IN "
                . "( ${\(join ', ', $Self->{ValidObject}->ValidIDsGet())} )",
        );
    }

    my %MoveQueues;
    while ( my @Row = $Self->{DBObject}->FetchrowArray() ) {
        $MoveQueues{ $Row[0] } = $Row[1];
    }

    if ( $Param{UserID} ) {
        $Self->{"GetAllQueues::UserID::$Param{UserID}"} = \%MoveQueues;
    }
    elsif ( $Param{CustomerUserID} ) {
        $Self->{"GetAllQueues::CustomerUserID::$Param{CustomerUserID}"} = \%MoveQueues;
    }
    else {
        $Self->{GetAllQueues} = \%MoveQueues;
    }

    return %MoveQueues;
}

=item GetAllCustomQueues()

get all custom queues of one user

    my @Queues = $QueueObject->GetAllCustomQueues( UserID => 123 );

=cut

sub GetAllCustomQueues {
    my ( $Self, %Param ) = @_;

    # check needed stuff
    if ( !$Param{UserID} ) {
        $Self->{LogObject}->Log( Priority => 'error', Message => 'Need UserID!' );
        return;
    }

    # check cache
    my $CacheKey = 'GetAllCustomQueues::' . $Param{UserID};
    my $Cache = $Self->{CacheInternalObject}->Get( Key => $CacheKey );

    #    return @{ $Cache } if $Cache;

    # fetch all queues
    return if !$Self->{DBObject}->Prepare(
        SQL  => 'SELECT queue_id FROM personal_queues WHERE user_id = ?',
        Bind => [ \$Param{UserID} ],
    );
    my @QueueIDs;
    while ( my @Row = $Self->{DBObject}->FetchrowArray() ) {
        push @QueueIDs, $Row[0];
    }

    # set cache
    $Self->{CacheInternalObject}->Set( Key => $CacheKey, Value => \@QueueIDs );

    return @QueueIDs;
}

=item QueueLookup()

get id or name for queue

    my $Queue = $QueueObject->QueueLookup( QueueID => $QueueID );

    my $QueueID = $QueueObject->QueueLookup( Queue => $Queue );

=cut

sub QueueLookup {
    my ( $Self, %Param ) = @_;

    # check needed stuff
    if ( !$Param{Queue} && !$Param{QueueID} ) {
        $Self->{LogObject}->Log( Priority => 'error', Message => 'Got no Queue or QueueID!' );
        return;
    }

    # check runtime cache
    my $CacheKey;
    my $Key;
    my $Value;
    if ( $Param{QueueID} ) {
        $CacheKey = 'QueueLookupName::' . $Param{QueueID};
        $Key      = 'QueueID';
        $Value    = $Param{QueueID};
    }
    else {
        $CacheKey = 'QueueLookupID::' . $Param{Queue};
        $Key      = 'Queue';
        $Value    = $Param{Queue};
    }

    # check cache
    my $Cache = $Self->{CacheInternalObject}->Get( Key => $CacheKey );
    return $Cache if $Cache;

    # get data
    if ( $Param{Queue} ) {
        return if !$Self->{DBObject}->Prepare(
            SQL  => 'SELECT id FROM queue WHERE name = ?',
            Bind => [ \$Param{Queue} ],
        );
    }
    else {
        return if !$Self->{DBObject}->Prepare(
            SQL  => 'SELECT name FROM queue WHERE id = ?',
            Bind => [ \$Param{QueueID} ],
        );
    }
    my $Data;
    while ( my @Row = $Self->{DBObject}->FetchrowArray() ) {
        $Data = $Row[0];
    }

    # check if data exists
    if ( !$Data ) {
        $Self->{LogObject}->Log(
            Priority => 'error',
            Message  => "Found no $Key for $Value!",
        );
        return;
    }

    # set cache
    $Self->{CacheInternalObject}->Set( Key => $CacheKey, Value => $Data );

    # return result
    return $Data;
}

=item GetFollowUpOption()

get FollowUpOption for the given QueueID

    my $FollowUpOption = $QueueObject->GetFollowUpOption( QueueID => $QueueID );

returns any of 'possible', 'reject', 'new ticket'.

=cut

sub GetFollowUpOption {
    my ( $Self, %Param ) = @_;

    # check needed stuff
    if ( !$Param{QueueID} ) {
        $Self->{LogObject}->Log( Priority => 'error', Message => 'Need QueueID!' );
        return;
    }

    # fetch queues data
    return if !$Self->{DBObject}->Prepare(
        SQL => 'SELECT sf.name FROM follow_up_possible sf, queue sq '
            . ' WHERE sq.follow_up_id = sf.id AND sq.id = ?',
        Bind => [ \$Param{QueueID} ],
    );
    my $Return = '';
    while ( my @Row = $Self->{DBObject}->FetchrowArray() ) {
        $Return = $Row[0];
    }
    return $Return;
}

=item GetFollowUpLockOption()

get FollowUpLockOption for the given QueueID

    my $FollowUpLockOption = $QueueObject->GetFollowUpLockOption( QueueID => $QueueID );

returns '1' if ticket should be locked after a follow up, '0' if not.

=cut

sub GetFollowUpLockOption {
    my ( $Self, %Param ) = @_;

    # check needed stuff
    if ( !$Param{QueueID} ) {
        $Self->{LogObject}->Log( Priority => 'error', Message => 'Need QueueID!' );
        return;
    }

    # fetch queues data
    return if !$Self->{DBObject}->Prepare(
        SQL  => 'SELECT sq.follow_up_lock FROM queue sq WHERE sq.id = ?',
        Bind => [ \$Param{QueueID} ],
    );
    my $Return = 0;
    while ( my @Row = $Self->{DBObject}->FetchrowArray() ) {
        $Return = $Row[0];
    }
    return $Return;
}

=item GetQueueGroupID()

get GroupID defined for the given QueueID.

    my $GroupID = $QueueObject->GetQueueGroupID( QueueID => $QueueID );

=cut

sub GetQueueGroupID {
    my ( $Self, %Param ) = @_;

    # check needed stuff
    if ( !$Param{QueueID} ) {
        $Self->{LogObject}->Log( Priority => 'error', Message => 'Need QueueID!' );
        return;
    }

    # check, if value is cached
    my $CacheKey = 'QueueGetGetQueueGroupID::' . $Param{QueueID};
    if ( $Self->{$CacheKey} ) {
        return $Self->{$CacheKey};
    }

    # get group id from database
    return if !$Self->{DBObject}->Prepare(
        SQL   => 'SELECT group_id FROM queue WHERE id = ?',
        Bind  => [ \$Param{QueueID} ],
        Limit => 1,
    );

    # fetch the result
    while ( my @Row = $Self->{DBObject}->FetchrowArray() ) {
        $Self->{$CacheKey} = $Row[0];
    }

    return $Self->{$CacheKey};
}

=item QueueAdd()

add queue with attributes

    $QueueObject->QueueAdd(
        Name                => 'Some::Queue',
        ValidID             => 1,
        GroupID             => 1,
        Calendar            => 'Calendar1', # (optional)
        FirstResponseTime   => 120,         # (optional)
        FirstResponseNotify => 60,   # (optional, notify agent if first response escalation is 60% reached)
        UpdateTime          => 180,  # (optional)
        UpdateNotify        => 80,   # (optional, notify agent if update escalation is 80% reached)
        SolutionTime        => 580,  # (optional)
        SolutionNotify      => 80,   # (optional, notify agent if solution escalation is 80% reached)
        SystemAddressID     => 1,
        SalutationID        => 1,
        SignatureID         => 1,
        UserID              => 123,
    );

=cut

sub QueueAdd {
    my ( $Self, %Param ) = @_;

    # check if this request is from web and not from command line
    if ( !$Param{NoDefaultValues} ) {
        for (
            qw(UnlockTimeout FirstResponseTime FirstResponseNotify UpdateTime UpdateNotify SolutionTime SolutionNotify
            FollowUpLock SystemAddressID SalutationID SignatureID
            FollowUpID FollowUpLock DefaultSignKey Calendar)
            )
        {

            # I added default values in the Load Routine
            if ( !$Param{$_} ) {
                $Param{$_} = $Self->{QueueDefaults}->{$_} || 0;
            }
        }
    }

    for (qw(Name GroupID SystemAddressID SalutationID SignatureID ValidID UserID FollowUpID)) {
        if ( !$Param{$_} ) {
            $Self->{LogObject}->Log( Priority => 'error', Message => "Need $_!" );
            return;
        }
    }

    # cleanup queue name
    $Param{Name} =~ s/(\n|\r)//g;
    $Param{Name} =~ s/\s$//g;

    # check queue name
    if ( $Param{Name} =~ /::$/i ) {
        $Self->{LogObject}->Log(
            Priority => 'error',
            Message  => "Invalid Queue name '$Param{Name}'!",
        );
        return;
    }

    return if !$Self->{DBObject}->Do(
        SQL => 'INSERT INTO queue (name, group_id, unlock_timeout, system_address_id, '
            . ' calendar_name, default_sign_key, salutation_id, signature_id, '
            . ' first_response_time, first_response_notify, update_time, '
            . ' update_notify, solution_time, solution_notify, follow_up_id, '
            . ' follow_up_lock, valid_id, comments, create_time, create_by, '
            . ' change_time, change_by) VALUES '
            . ' (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, '
            . ' ?, current_timestamp, ?, current_timestamp, ?)',
        Bind => [
            \$Param{Name}, \$Param{GroupID}, \$Param{UnlockTimeout}, \$Param{SystemAddressID},
            \$Param{Calendar}, \$Param{DefaultSignKey}, \$Param{SalutationID}, \$Param{SignatureID},
            \$Param{FirstResponseTime}, \$Param{FirstResponseNotify}, \$Param{UpdateTime},
            \$Param{UpdateNotify},      \$Param{SolutionTime},        \$Param{SolutionNotify},
            \$Param{FollowUpID},        \$Param{FollowUpLock},        \$Param{ValidID},
            \$Param{Comment},           \$Param{UserID},              \$Param{UserID},
        ],
    );

    # get new id
    return if !$Self->{DBObject}->Prepare(
        SQL  => 'SELECT id FROM queue WHERE name = ?',
        Bind => [ \$Param{Name} ],
    );
    my $QueueID = '';
    while ( my @Row = $Self->{DBObject}->FetchrowArray() ) {
        $QueueID = $Row[0];
    }

    # delete cache
    my @CacheKeys = (
        'QueueGetID::' . $QueueID,
        'QueueGetName::' . $Param{Name},
        'QueueLookupID::' . $Param{Name},
        'QueueLookupName::' . $QueueID,
        'QueueList::0',
        'QueueList::1',
    );
    for my $CachKey (@CacheKeys) {
        $Self->{CacheInternalObject}->Delete( Key => $CachKey );
    }

    # add default responses (if needed), add response by name
    if ( $Self->{ConfigObject}->Get('StandardResponse2QueueByCreating') ) {
        for ( @{ $Self->{ConfigObject}->{StandardResponse2QueueByCreating} } ) {
            my $StandardResponseID = $Self->{StandardResponseObject}->StandardResponseLookup(
                StandardResponse => $_,
            );
            if ($StandardResponseID) {
                $Self->SetQueueStandardResponse(
                    QueueID    => $QueueID,
                    ResponseID => $StandardResponseID,
                    UserID     => $Param{UserID},
                );
            }
        }
    }

    # add response by id
    if ( $Self->{ConfigObject}->Get('StandardResponseID2QueueByCreating') ) {
        for ( @{ $Self->{ConfigObject}->{StandardResponseID2QueueByCreating} } ) {
            $Self->SetQueueStandardResponse(
                QueueID    => $QueueID,
                ResponseID => $_,
                UserID     => $Param{UserID},
            );
        }
    }

    return $QueueID;
}

=item QueueGet()

get queue attributes

    my %Queue = $QueueObject->QueueGet(
        ID    => 123,
    );

    my %Queue = $QueueObject->QueueGet(
        Name  => 'Some::Queue',
    );

=cut

sub QueueGet {
    my ( $Self, %Param ) = @_;

    # check needed stuff
    if ( !$Param{ID} && !$Param{Name} ) {
        $Self->{LogObject}->Log( Priority => 'error', Message => 'Need ID or Name!' );
        return;
    }

    # check runtime cache
    my $CacheKey;
    my $Key;
    my $Value;
    if ( $Param{ID} ) {
        $CacheKey = 'QueueGetID::' . $Param{ID};
        $Key      = 'ID';
        $Value    = $Param{ID};
    }
    else {
        $CacheKey = 'QueueGetName::' . $Param{Name};
        $Key      = 'Name';
        $Value    = $Param{Name};
    }

    # check cache
    my $Cache = $Self->{CacheInternalObject}->Get( Key => $CacheKey );
    return %{$Cache} if $Cache;

    # sql
    my @Bind;
    my $SQL = 'SELECT q.name, q.group_id, q.unlock_timeout, '
        . 'q.system_address_id, q.salutation_id, q.signature_id, q.comments, q.valid_id, '
        . 'q.first_response_time, q.first_response_notify, '
        . 'q.update_time, q.update_notify, q.solution_time, q.solution_notify, '
        . 'q.follow_up_id, q.follow_up_lock, sa.value0, sa.value1, q.id, '
        . 'q.default_sign_key, q.calendar_name, q.create_time, q.change_time FROM queue q, '
        . 'system_address sa WHERE q.system_address_id = sa.id AND ';

    if ( $Param{ID} ) {
        $SQL .= 'q.id = ?';
        push @Bind, \$Param{ID};
    }
    else {
        $SQL .= 'q.name = ?';
        push @Bind, \$Param{Name};
    }
    return if !$Self->{DBObject}->Prepare( SQL => $SQL, Bind => \@Bind );
    my %Data;
    while ( my @Data = $Self->{DBObject}->FetchrowArray() ) {
        %Data = (
            QueueID             => $Data[18],
            Name                => $Data[0],
            GroupID             => $Data[1],
            UnlockTimeout       => $Data[2],
            FirstResponseTime   => $Data[8],
            FirstResponseNotify => $Data[9],
            UpdateTime          => $Data[10],
            UpdateNotify        => $Data[11],
            SolutionTime        => $Data[12],
            SolutionNotify      => $Data[13],
            FollowUpID          => $Data[14],
            FollowUpLock        => $Data[15],
            SystemAddressID     => $Data[3],
            SalutationID        => $Data[4],
            SignatureID         => $Data[5],
            Comment             => $Data[6],
            ValidID             => $Data[7],
            Email               => $Data[16],
            RealName            => $Data[17],
            DefaultSignKey      => $Data[19],
            Calendar            => $Data[20] || '',
            CreateTime          => $Data[21],
            ChangeTime          => $Data[22],
        );
    }

    # check if data exists
    if ( !%Data ) {
        $Self->{LogObject}->Log(
            Priority => 'error',
            Message  => "Found no $Key for $Value!",
        );
        return;
    }

    # get queue preferences
    my %Preferences = $Self->QueuePreferencesGet( QueueID => $Data{QueueID} );

    # merge hash
    if (%Preferences) {
        %Data = ( %Data, %Preferences );
    }

    # set cache
    $Self->{CacheInternalObject}->Set( Key => $CacheKey, Value => \%Data );

    # return result
    return %Data;
}

=item QueueUpdate()

update queue attributes

    $QueueObject->QueueUpdate(
        QueueID             => 123,
        Name                => 'Some::Queue',
        ValidID             => 1,
        GroupID             => 1,
        Calendar            => '1', # (optional) default ''
        FirstResponseTime   => 120, # (optional)
        FirstResponseNotify => 60,  # (optional, notify agent if first response escalation is 60% reached)
        UpdateTime          => 180, # (optional)
        UpdateNotify        => 80,  # (optional, notify agent if update escalation is 80% reached)
        SolutionTime        => 580, # (optional)
        SolutionNotify      => 80,  # (optional, notify agent if solution escalation is 80% reached)
        SystemAddressID     => 1,
        SalutationID        => 1,
        SignatureID         => 1,
        UserID              => 123,
        FollowUpID          => 1,
        Comment             => 'Some Comment2',
        DefaultSignKey      => ''
        UnlockTimeOut       => ''
        FollowUpLock        => 1,
        ParentQueueID       => '',
        CheckSysConfig      => 0,   # (optional) default 1
    );

=cut

sub QueueUpdate {
    my ( $Self, %Param ) = @_;

    # check needed stuff
    for (
        qw(QueueID Name ValidID GroupID SystemAddressID SalutationID SignatureID UserID FollowUpID)
        )
    {
        if ( !$Param{$_} ) {
            $Self->{LogObject}->Log( Priority => 'error', Message => "Need $_!" );
            return;
        }
    }

    # check CheckSysConfig param
    if ( !defined $Param{CheckSysConfig} ) {
        $Param{CheckSysConfig} = 1;
    }

    # FollowUpLock 0 | 1
    $Param{FollowUpLock} = $Param{FollowUpLock} || 0;

    # DefaultSignKey   '' || 'string'
    $Param{DefaultSignKey} = $Param{DefaultSignKey} || '';

    # Calendar string  '', '1', '2', '3', '4', '5'  default ''
    $Param{Calendar} ||= '';

    # content -> time in seconds
    for my $Time (qw( UnlockTimeout FirstResponseTime UpdateTime SolutionTime )) {
        $Param{$Time} = $Param{$Time} || 0;
        if ( $Param{$Time} !~ m{^\d+$}smx ) {
            $Self->{LogObject}->Log( Priority => 'error', Message => "$Time is not numeric!" );
            return;
        }
    }

    # content integer from 0 - 99
    for my $Notify (qw(FirstResponseNotify  UpdateNotify  SolutionNotify)) {
        $Param{$Notify} = $Param{$Notify} || 0;
        if ( $Param{$Notify} !~ m{^\d{1,2}}smx ) {
            $Self->{LogObject}->Log(
                Priority => 'error',
                Message  => "$Notify must be an integer in the range from 0 to 99!",
            );
            return;
        }
    }

    # cleanup queue name
    $Param{Name} =~ s/(\n|\r)//g;
    $Param{Name} =~ s/\s$//g;

    # check queue name
    if ( $Param{Name} =~ /::$/i ) {
        $Self->{LogObject}->Log(
            Priority => 'error',
            Message  => "Invalid Queue name '$Param{Name}'!",
        );
        return;
    }

    # check if queue name exists
    my %AllQueue = $Self->{DBObject}->GetTableData(
        Table => 'queue',
        What  => 'id, name',
    );
    my %OldQueue = $Self->QueueGet( ID => $Param{QueueID} );
    for ( keys %AllQueue ) {
        if ( $AllQueue{$_} =~ /^\Q$Param{Name}\E$/i && $_ != $Param{QueueID} ) {
            $Self->{LogObject}->Log(
                Priority => 'error',
                Message  => "Queue '$Param{Name}' exists! Can't updated queue '$OldQueue{Name}'.",
            );
            return;
        }
    }

    # sql
    return if !$Self->{DBObject}->Do(
        SQL => 'UPDATE queue SET name = ?, comments = ?, group_id = ?, '
            . ' unlock_timeout = ?, first_response_time = ?, first_response_notify = ?, '
            . ' update_time = ?, update_notify = ?, solution_time = ?, '
            . ' solution_notify = ?, follow_up_id = ?, follow_up_lock = ?, '
            . ' system_address_id = ?, calendar_name = ?, default_sign_key = ?, '
            . ' salutation_id = ?, signature_id = ?, '
            . ' valid_id = ?, change_time = current_timestamp, change_by = ? '
            . ' WHERE id = ?',
        Bind => [
            \$Param{Name}, \$Param{Comment}, \$Param{GroupID}, \$Param{UnlockTimeout},
            \$Param{FirstResponseTime}, \$Param{FirstResponseNotify}, \$Param{UpdateTime},
            \$Param{UpdateNotify},      \$Param{SolutionTime},        \$Param{SolutionNotify},
            \$Param{FollowUpID},        \$Param{FollowUpLock},        \$Param{SystemAddressID},
            \$Param{Calendar},          \$Param{DefaultSignKey},      \$Param{SalutationID},
            \$Param{SignatureID},       \$Param{ValidID},             \$Param{UserID},
            \$Param{QueueID},
        ],
    );

    # delete cache
    my @CacheKeys = (
        'QueueGetID::' . $OldQueue{QueueID},
        'QueueGetName::' . $OldQueue{Name},
        'QueueLookupID::' . $OldQueue{Name},
        'QueueLookupName::' . $OldQueue{QueueID},
        'QueueList::0',
        'QueueList::1',
    );
    for my $CachKey (@CacheKeys) {
        $Self->{CacheInternalObject}->Delete( Key => $CachKey );
    }

    # updated all sub queue names
    my @ParentQueue = split( /::/, $OldQueue{Name} );
    for my $QueueID ( keys %AllQueue ) {
        my @SubQueue = split( /::/, $AllQueue{$QueueID} );
        if ( $#SubQueue > $#ParentQueue ) {
            if ( $AllQueue{$QueueID} =~ /^\Q$OldQueue{Name}::\E/i ) {
                my $NewQueueName = $AllQueue{$QueueID};
                $NewQueueName =~ s/\Q$OldQueue{Name}\E/$Param{Name}/;
                return if !$Self->{DBObject}->Do(
                    SQL => 'UPDATE queue SET name = ?, change_time = current_timestamp, '
                        . ' change_by = ? WHERE id = ?',
                    Bind => [ \$NewQueueName, \$Param{UserID}, \$QueueID ],
                );

                # delete cache
                my @CacheKeys = (
                    'QueueGetID::' . $QueueID,
                    'QueueGetName::' . $NewQueueName,
                    'QueueLookupID::' . $NewQueueName,
                    'QueueLookupName::' . $QueueID,
                    'QueueList::0',
                    'QueueList::1',
                );
                for my $CachKey (@CacheKeys) {
                    $Self->{CacheInternalObject}->Delete( Key => $CachKey );
                }
            }
        }
    }

    # create a time object locally, needed for the local SysConfigObject
    my $TimeObject = Kernel::System::Time->new( %{$Self} );

    # check all sysconfig options
    if ( $Param{CheckSysConfig} ) {

        # create a sysconfig object locally for performance reasons
        my $SysConfigObject = Kernel::System::SysConfig->new(
            %{$Self},
            TimeObject => $TimeObject,
        );

        # check all sysconfig options and correct them automatically if neccessary
        $SysConfigObject->ConfigItemCheckAll();
    }

    return 1;
}

=item QueueList()

get all queues

    my %Queues = $QueueObject->QueueList();

    my %Queues = $QueueObject->QueueList( Valid => 1 );

=cut

sub QueueList {
    my ( $Self, %Param ) = @_;

    # set valid option
    my $Valid = $Param{Valid};
    if ( !defined $Valid || $Valid ) {
        $Valid = 1;
    }
    else {
        $Valid = 0;
    }

    if ( $Self->{ 'QueueList::' . $Valid } ) {
        return %{ $Self->{ 'QueueList::' . $Valid } };
    }

    # sql query
    if ($Valid) {
        return if !$Self->{DBObject}->Prepare(
            SQL => "SELECT id, name FROM queue WHERE valid_id IN "
                . "( ${\(join ', ', $Self->{ValidObject}->ValidIDsGet())} )",
        );
    }
    else {
        return if !$Self->{DBObject}->Prepare(
            SQL => 'SELECT id, name FROM queue',
        );
    }
    my %Queues;
    while ( my @Row = $Self->{DBObject}->FetchrowArray() ) {
        $Queues{ $Row[0] } = $Row[1];
    }

    # cache result
    $Self->{ 'QueueList::' . $Valid } = \%Queues;

    return %Queues;
}

=item QueuePreferencesSet()

set queue preferences

    $QueueObject->QueuePreferencesSet(
        QueueID => 123,
        Key     => 'UserComment',
        Value   => 'some comment',
        UserID  => 123,
    );

=cut

sub QueuePreferencesSet {
    my ( $Self, %Param ) = @_;

    # delete cache
    my $Name = $Self->QueueLookup( QueueID => $Param{QueueID} );
    my @CacheKeys = (
        'QueueGetID::' . $Param{QueueID},
        'QueueGetName::' . $Name,
    );
    for my $CachKey (@CacheKeys) {
        $Self->{CacheInternalObject}->Delete( Key => $CachKey );
    }

    return $Self->{PreferencesObject}->QueuePreferencesSet(%Param);
}

=item QueuePreferencesGet()

get queue preferences

    my %Preferences = $QueueObject->QueuePreferencesGet(
        QueueID => 123,
        UserID  => 123,
    );

=cut

sub QueuePreferencesGet {
    my ( $Self, %Param ) = @_;

    return $Self->{PreferencesObject}->QueuePreferencesGet(%Param);
}

1;

=back

=head1 TERMS AND CONDITIONS

This software is part of the OTRS project (L<http://otrs.org/>).

This software comes with ABSOLUTELY NO WARRANTY. For details, see
the enclosed file COPYING for license information (AGPL). If you
did not receive this file, see L<http://www.gnu.org/licenses/agpl.txt>.

=cut

=head1 VERSION

$Revision: 1.128 $ $Date: 2010/12/23 17:42:36 $

=cut
