# --
# Copyright (C) 2001-2021 OTRS AG, https://otrs.com/
# --
# 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 https://www.gnu.org/licenses/gpl-3.0.txt.
# --

package Kernel::System::Stats::Dynamic::Ticket;

use strict;
use warnings;

use Kernel::System::VariableCheck qw(:all);
use Kernel::Language qw(Translatable);

our @ObjectDependencies = (
    'Kernel::Config',
    'Kernel::System::DB',
    'Kernel::System::DynamicField',
    'Kernel::System::DynamicField::Backend',
    'Kernel::System::Lock',
    'Kernel::System::Log',
    'Kernel::System::Priority',
    'Kernel::System::Queue',
    'Kernel::System::Service',
    'Kernel::System::SLA',
    'Kernel::System::State',
    'Kernel::System::Ticket',
    'Kernel::System::DateTime',
    'Kernel::System::Type',
    'Kernel::System::User',
);

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

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

    # get the dynamic fields for ticket object
    $Self->{DynamicField} = $Kernel::OM->Get('Kernel::System::DynamicField')->DynamicFieldListGet(
        Valid      => 1,
        ObjectType => ['Ticket'],
    );

    return $Self;
}

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

    return 'TicketAccumulation';
}

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

    my %Behaviours = (
        ProvidesDashboardWidget => 1,
    );

    return %Behaviours;
}

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

    # get needed objects
    my $ConfigObject   = $Kernel::OM->Get('Kernel::Config');
    my $UserObject     = $Kernel::OM->Get('Kernel::System::User');
    my $QueueObject    = $Kernel::OM->Get('Kernel::System::Queue');
    my $TicketObject   = $Kernel::OM->Get('Kernel::System::Ticket');
    my $StateObject    = $Kernel::OM->Get('Kernel::System::State');
    my $PriorityObject = $Kernel::OM->Get('Kernel::System::Priority');
    my $LockObject     = $Kernel::OM->Get('Kernel::System::Lock');
    my $DBObject       = $Kernel::OM->Get('Kernel::System::DB');

    my $ValidAgent = 0;
    if (
        defined $ConfigObject->Get('Stats::UseInvalidAgentInStats')
        && ( $ConfigObject->Get('Stats::UseInvalidAgentInStats') == 0 )
        )
    {
        $ValidAgent = 1;
    }

    # Get user list without the out of office message, because of the caching in the statistics
    #   and not meaningful with a date selection.
    my %UserList = $UserObject->UserList(
        Type          => 'Long',
        Valid         => $ValidAgent,
        NoOutOfOffice => 1,
    );

    # get state list
    my %StateList = $StateObject->StateList(
        UserID => 1,
    );

    # get state type list
    my %StateTypeList = $StateObject->StateTypeList(
        UserID => 1,
    );

    # get queue list
    my %QueueList = $QueueObject->GetAllQueues();

    # get priority list
    my %PriorityList = $PriorityObject->PriorityList(
        UserID => 1,
    );

    # get lock list
    my %LockList = $LockObject->LockList(
        UserID => 1,
    );

    # get current time to fix bug#3830
    my $Date  = $Kernel::OM->Create('Kernel::System::DateTime')->Format( Format => '%Y-%m-%d' );
    my $Today = sprintf "%s 23:59:59", $Date;

    my @ObjectAttributes = (
        {
            Name             => Translatable('Queue'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'QueueIDs',
            Block            => 'MultiSelectField',
            Translation      => 0,
            TreeView         => 1,
            Values           => \%QueueList,
        },
        {
            Name             => Translatable('State'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'StateIDs',
            Block            => 'MultiSelectField',
            Values           => \%StateList,
        },
        {
            Name             => Translatable('State Type'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'StateTypeIDs',
            Block            => 'MultiSelectField',
            Values           => \%StateTypeList,
        },
        {
            Name             => Translatable('Priority'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'PriorityIDs',
            Block            => 'MultiSelectField',
            Values           => \%PriorityList,
        },
        {
            Name             => Translatable('Created in Queue'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'CreatedQueueIDs',
            Block            => 'MultiSelectField',
            Translation      => 0,
            TreeView         => 1,
            Values           => \%QueueList,
        },
        {
            Name             => Translatable('Created Priority'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'CreatedPriorityIDs',
            Block            => 'MultiSelectField',
            Values           => \%PriorityList,
        },
        {
            Name             => Translatable('Created State'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'CreatedStateIDs',
            Block            => 'MultiSelectField',
            Values           => \%StateList,
        },
        {
            Name             => Translatable('Lock'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'LockIDs',
            Block            => 'MultiSelectField',
            Values           => \%LockList,
        },
        {
            Name             => Translatable('Title'),
            UseAsXvalue      => 0,
            UseAsValueSeries => 0,
            UseAsRestriction => 1,
            Element          => 'Title',
            Block            => 'InputField',
        },
        {
            Name             => Translatable('From'),
            UseAsXvalue      => 0,
            UseAsValueSeries => 0,
            UseAsRestriction => 1,
            Element          => 'MIMEBase_From',
            Block            => 'InputField',
        },
        {
            Name             => Translatable('To'),
            UseAsXvalue      => 0,
            UseAsValueSeries => 0,
            UseAsRestriction => 1,
            Element          => 'MIMEBase_To',
            Block            => 'InputField',
        },
        {
            Name             => Translatable('Cc'),
            UseAsXvalue      => 0,
            UseAsValueSeries => 0,
            UseAsRestriction => 1,
            Element          => 'MIMEBase_Cc',
            Block            => 'InputField',
        },
        {
            Name             => Translatable('Subject'),
            UseAsXvalue      => 0,
            UseAsValueSeries => 0,
            UseAsRestriction => 1,
            Element          => 'MIMEBase_Subject',
            Block            => 'InputField',
        },
        {
            Name             => Translatable('Text'),
            UseAsXvalue      => 0,
            UseAsValueSeries => 0,
            UseAsRestriction => 1,
            Element          => 'MIMEBase_Body',
            Block            => 'InputField',
        },
        {
            Name             => Translatable('Create Time'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'CreateTime',
            TimePeriodFormat => 'DateInputFormat',             # 'DateInputFormatLong',
            Block            => 'Time',
            TimeStop         => $Today,
            Values           => {
                TimeStart => 'TicketCreateTimeNewerDate',
                TimeStop  => 'TicketCreateTimeOlderDate',
            },
        },
        {
            Name             => Translatable('Last changed times'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'LastChangeTime',
            TimePeriodFormat => 'DateInputFormat',                    # 'DateInputFormatLong',
            Block            => 'Time',
            TimeStop         => $Today,
            Values           => {
                TimeStart => 'TicketLastChangeTimeNewerDate',
                TimeStop  => 'TicketLastChangeTimeOlderDate',
            },
        },
        {
            Name             => Translatable('Change times'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'ChangeTime',
            TimePeriodFormat => 'DateInputFormat',              # 'DateInputFormatLong',
            Block            => 'Time',
            TimeStop         => $Today,
            Values           => {
                TimeStart => 'TicketChangeTimeNewerDate',
                TimeStop  => 'TicketChangeTimeOlderDate',
            },
        },
        {
            Name             => Translatable('Pending until time'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'PendingUntilTime',
            TimePeriodFormat => 'DateInputFormat',                    # 'DateInputFormatLong',
            Block            => 'Time',
            TimeStop         => $Today,
            Values           => {
                TimeStart => 'TicketPendingTimeNewerDate',
                TimeStop  => 'TicketPendingTimeOlderDate',
            },
        },
        {
            Name             => Translatable('Close Time'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'CloseTime2',
            TimePeriodFormat => 'DateInputFormat',            # 'DateInputFormatLong',
            Block            => 'Time',
            TimeStop         => $Today,
            Values           => {
                TimeStart => 'TicketCloseTimeNewerDate',
                TimeStop  => 'TicketCloseTimeOlderDate',
            },
        },
        {
            Name             => Translatable('Escalation'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'EscalationTime',
            TimePeriodFormat => 'DateInputFormatLong',        # 'DateInputFormat',
            Block            => 'Time',
            TimeStop         => $Today,
            Values           => {
                TimeStart => 'TicketEscalationTimeNewerDate',
                TimeStop  => 'TicketEscalationTimeOlderDate',
            },
        },
        {
            Name             => Translatable('Escalation - First Response Time'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'EscalationResponseTime',
            TimePeriodFormat => 'DateInputFormatLong',                              # 'DateInputFormat',
            Block            => 'Time',
            TimeStop         => $Today,
            Values           => {
                TimeStart => 'TicketEscalationResponseTimeNewerDate',
                TimeStop  => 'TicketEscalationResponseTimeOlderDate',
            },
        },
        {
            Name             => Translatable('Escalation - Update Time'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'EscalationUpdateTime',
            TimePeriodFormat => 'DateInputFormatLong',                      # 'DateInputFormat',
            Block            => 'Time',
            TimeStop         => $Today,
            Values           => {
                TimeStart => 'TicketEscalationUpdateTimeNewerDate',
                TimeStop  => 'TicketEscalationUpdateTimeOlderDate',
            },
        },
        {
            Name             => Translatable('Escalation - Solution Time'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'EscalationSolutionTime',
            TimePeriodFormat => 'DateInputFormatLong',                        # 'DateInputFormat',
            Block            => 'Time',
            TimeStop         => $Today,
            Values           => {
                TimeStart => 'TicketEscalationSolutionTimeNewerDate',
                TimeStop  => 'TicketEscalationSolutionTimeOlderDate',
            },
        },
    );

    if ( $ConfigObject->Get('Ticket::Service') ) {

        # get service list
        my %Service = $Kernel::OM->Get('Kernel::System::Service')->ServiceList(
            KeepChildren => $ConfigObject->Get('Ticket::Service::KeepChildren'),
            UserID       => 1,
        );

        # get sla list
        my %SLA = $Kernel::OM->Get('Kernel::System::SLA')->SLAList(
            UserID => 1,
        );

        my @ObjectAttributeAdd = (
            {
                Name             => Translatable('Service'),
                UseAsXvalue      => 1,
                UseAsValueSeries => 1,
                UseAsRestriction => 1,
                Element          => 'ServiceIDs',
                Block            => 'MultiSelectField',
                Translation      => 0,
                TreeView         => 1,
                Values           => \%Service,
            },
            {
                Name             => Translatable('SLA'),
                UseAsXvalue      => 1,
                UseAsValueSeries => 1,
                UseAsRestriction => 1,
                Element          => 'SLAIDs',
                Block            => 'MultiSelectField',
                Translation      => 0,
                Values           => \%SLA,
            },
        );

        unshift @ObjectAttributes, @ObjectAttributeAdd;
    }

    if ( $ConfigObject->Get('Ticket::Type') ) {

        # get ticket type list
        my %Type = $Kernel::OM->Get('Kernel::System::Type')->TypeList(
            UserID => 1,
        );

        my %ObjectAttribute1 = (
            Name             => Translatable('Type'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'TypeIDs',
            Block            => 'MultiSelectField',
            Translation      => 0,
            Values           => \%Type,
        );

        unshift @ObjectAttributes, \%ObjectAttribute1;
    }

    if ( $ConfigObject->Get('Stats::UseAgentElementInStats') ) {

        my @ObjectAttributeAdd = (
            {
                Name             => Translatable('Agent/Owner'),
                UseAsXvalue      => 1,
                UseAsValueSeries => 1,
                UseAsRestriction => 1,
                Element          => 'OwnerIDs',
                Block            => 'MultiSelectField',
                Translation      => 0,
                Values           => \%UserList,
            },
            {
                Name             => Translatable('Created by Agent/Owner'),
                UseAsXvalue      => 1,
                UseAsValueSeries => 1,
                UseAsRestriction => 1,
                Element          => 'CreatedUserIDs',
                Block            => 'MultiSelectField',
                Translation      => 0,
                Values           => \%UserList,
            },
            {
                Name             => Translatable('Responsible'),
                UseAsXvalue      => 1,
                UseAsValueSeries => 1,
                UseAsRestriction => 1,
                Element          => 'ResponsibleIDs',
                Block            => 'MultiSelectField',
                Translation      => 0,
                Values           => \%UserList,
            },
        );

        push @ObjectAttributes, @ObjectAttributeAdd;
    }

    if ( $ConfigObject->Get('Stats::CustomerIDAsMultiSelect') ) {

        # Get all CustomerIDs which are related to a ticket.
        $DBObject->Prepare(
            SQL => "SELECT DISTINCT customer_id FROM ticket",
        );

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

        my %ObjectAttribute = (
            Name             => Translatable('Customer ID'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'CustomerID',
            Block            => 'MultiSelectField',
            Values           => \%CustomerID,
        );

        push @ObjectAttributes, \%ObjectAttribute;
    }
    else {

        my @CustomerIDAttributes = (
            {
                Name             => Translatable('CustomerID (complex search)'),
                UseAsXvalue      => 0,
                UseAsValueSeries => 0,
                UseAsRestriction => 1,
                Element          => 'CustomerID',
                Block            => 'InputField',
            },
            {
                Name             => Translatable('CustomerID (exact match)'),
                UseAsXvalue      => 0,
                UseAsValueSeries => 0,
                UseAsRestriction => 1,
                Element          => 'CustomerIDRaw',
                Block            => 'InputField',
            },
        );

        push @ObjectAttributes, @CustomerIDAttributes;
    }

    if ( $ConfigObject->Get('Stats::CustomerUserLoginsAsMultiSelect') ) {

        # Get all CustomerUserLogins which are related to a tiket.
        $DBObject->Prepare(
            SQL => "SELECT DISTINCT customer_user_id FROM ticket",
        );

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

        my %ObjectAttribute = (
            Name             => Translatable('Assigned to Customer User Login'),
            UseAsXvalue      => 1,
            UseAsValueSeries => 1,
            UseAsRestriction => 1,
            Element          => 'CustomerUserLoginRaw',
            Block            => 'MultiSelectField',
            Values           => \%CustomerUserIDs,
        );

        push @ObjectAttributes, \%ObjectAttribute;
    }
    else {

        my @CustomerUserAttributes = (
            {
                Name             => Translatable('Assigned to Customer User Login (complex search)'),
                UseAsXvalue      => 0,
                UseAsValueSeries => 0,
                UseAsRestriction => 1,
                Element          => 'CustomerUserLogin',
                Block            => 'InputField',
            },
            {
                Name               => Translatable('Assigned to Customer User Login (exact match)'),
                UseAsXvalue        => 0,
                UseAsValueSeries   => 0,
                UseAsRestriction   => 1,
                Element            => 'CustomerUserLoginRaw',
                Block              => 'InputField',
                CSSClass           => 'CustomerAutoCompleteSimple',
                HTMLDataAttributes => {
                    'customer-search-type' => 'CustomerUser',
                },
            },
        );

        push @ObjectAttributes, @CustomerUserAttributes;
    }

    # Add always the field for the customer user login accessible tickets as auto complete field.
    my %ObjectAttribute = (
        Name               => Translatable('Accessible to Customer User Login (exact match)'),
        UseAsXvalue        => 0,
        UseAsValueSeries   => 0,
        UseAsRestriction   => 1,
        Element            => 'CustomerUserID',
        Block              => 'InputField',
        CSSClass           => 'CustomerAutoCompleteSimple',
        HTMLDataAttributes => {
            'customer-search-type' => 'CustomerUser',
        },
    );
    push @ObjectAttributes, \%ObjectAttribute;

    if ( $ConfigObject->Get('Ticket::ArchiveSystem') ) {

        my %ObjectAttribute = (
            Name             => Translatable('Archive Search'),
            UseAsXvalue      => 0,
            UseAsValueSeries => 0,
            UseAsRestriction => 1,
            Element          => 'SearchInArchive',
            Block            => 'SelectField',
            Translation      => 1,
            Values           => {
                ArchivedTickets    => Translatable('Archived tickets'),
                NotArchivedTickets => Translatable('Unarchived tickets'),
                AllTickets         => Translatable('All tickets'),
            },
        );

        push @ObjectAttributes, \%ObjectAttribute;
    }

    # get dynamic field backend object
    my $DynamicFieldBackendObject = $Kernel::OM->Get('Kernel::System::DynamicField::Backend');

    # cycle trough the activated Dynamic Fields for this screen
    DYNAMICFIELD:
    for my $DynamicFieldConfig ( @{ $Self->{DynamicField} } ) {
        next DYNAMICFIELD if !IsHashRefWithData($DynamicFieldConfig);

        # skip all fields not designed to be supported by statistics
        my $IsStatsCondition = $DynamicFieldBackendObject->HasBehavior(
            DynamicFieldConfig => $DynamicFieldConfig,
            Behavior           => 'IsStatsCondition',
        );

        next DYNAMICFIELD if !$IsStatsCondition;

        my $PossibleValuesFilter;

        my $IsACLReducible = $DynamicFieldBackendObject->HasBehavior(
            DynamicFieldConfig => $DynamicFieldConfig,
            Behavior           => 'IsACLReducible',
        );

        if ($IsACLReducible) {

            # get PossibleValues
            my $PossibleValues = $DynamicFieldBackendObject->PossibleValuesGet(
                DynamicFieldConfig => $DynamicFieldConfig,
            );

            # convert possible values key => value to key => key for ACLs using a Hash slice
            my %AclData = %{ $PossibleValues || {} };
            @AclData{ keys %AclData } = keys %AclData;

            # set possible values filter from ACLs
            my $ACL = $TicketObject->TicketAcl(
                Action        => 'AgentStats',
                Type          => 'DynamicField_' . $DynamicFieldConfig->{Name},
                ReturnType    => 'Ticket',
                ReturnSubType => 'DynamicField_' . $DynamicFieldConfig->{Name},
                Data          => \%AclData || {},
                UserID        => 1,
            );
            if ($ACL) {
                my %Filter = $TicketObject->TicketAclData();

                # convert Filer key => key back to key => value using map
                %{$PossibleValuesFilter} = map { $_ => $PossibleValues->{$_} } keys %Filter;
            }
        }

        # get field html
        my $DynamicFieldStatsParameter = $DynamicFieldBackendObject->StatsFieldParameterBuild(
            DynamicFieldConfig   => $DynamicFieldConfig,
            PossibleValuesFilter => $PossibleValuesFilter,
        );

        if ( IsHashRefWithData($DynamicFieldStatsParameter) ) {

            # backward compatibility
            if ( !$DynamicFieldStatsParameter->{Block} ) {
                $DynamicFieldStatsParameter->{Block} = 'InputField';
                if ( IsHashRefWithData( $DynamicFieldStatsParameter->{Values} ) ) {
                    $DynamicFieldStatsParameter->{Block} = 'MultiSelectField';
                }
            }

            if ( $DynamicFieldStatsParameter->{Block} eq 'Time' ) {

                # create object attributes (date/time fields)
                my $TimePeriodFormat = $DynamicFieldStatsParameter->{TimePeriodFormat} || 'DateInputFormatLong';

                my %ObjectAttribute = (
                    Name             => $DynamicFieldStatsParameter->{Name},
                    UseAsXvalue      => 1,
                    UseAsValueSeries => 1,
                    UseAsRestriction => 1,
                    Element          => $DynamicFieldStatsParameter->{Element},
                    TimePeriodFormat => $TimePeriodFormat,
                    Block            => $DynamicFieldStatsParameter->{Block},
                    TimePeriodFormat => $TimePeriodFormat,
                    Values           => {
                        TimeStart =>
                            $DynamicFieldStatsParameter->{Element}
                            . '_GreaterThanEquals',
                        TimeStop =>
                            $DynamicFieldStatsParameter->{Element}
                            . '_SmallerThanEquals',
                    },
                );
                push @ObjectAttributes, \%ObjectAttribute;
            }
            elsif ( $DynamicFieldStatsParameter->{Block} eq 'MultiSelectField' ) {

                # create object attributes (multiple values)
                my %ObjectAttribute = (
                    Name             => $DynamicFieldStatsParameter->{Name},
                    UseAsXvalue      => 1,
                    UseAsValueSeries => 1,
                    UseAsRestriction => 1,
                    Element          => $DynamicFieldStatsParameter->{Element},
                    Block            => $DynamicFieldStatsParameter->{Block},
                    Values           => $DynamicFieldStatsParameter->{Values},
                    Translation      => $DynamicFieldStatsParameter->{TranslatableValues} || 0,
                    IsDynamicField   => 1,
                    ShowAsTree       => $DynamicFieldConfig->{Config}->{TreeView} || 0,
                );
                push @ObjectAttributes, \%ObjectAttribute;
            }
            else {

                # create object attributes (text fields)
                my %ObjectAttribute = (
                    Name             => $DynamicFieldStatsParameter->{Name},
                    UseAsXvalue      => 0,
                    UseAsValueSeries => 0,
                    UseAsRestriction => 1,
                    Element          => $DynamicFieldStatsParameter->{Element},
                    Block            => $DynamicFieldStatsParameter->{Block},
                );
                push @ObjectAttributes, \%ObjectAttribute;
            }
        }
    }

    return @ObjectAttributes;
}

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

    return int rand 50;
}

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

    # get dynamic field backend object
    my $DynamicFieldBackendObject = $Kernel::OM->Get('Kernel::System::DynamicField::Backend');
    my $DBObject                  = $Kernel::OM->Get('Kernel::System::DB');
    my $ConfigObject              = $Kernel::OM->Get('Kernel::Config');

    # escape search attributes for ticket search
    my %AttributesToEscape = (
        'CustomerID' => 1,
        'Title'      => 1,
    );

    # Map the CustomerID search parameter to CustomerIDRaw search parameter for the
    #   exact search match, if the 'Stats::CustomerIDAsMultiSelect' is active.
    if ( $ConfigObject->Get('Stats::CustomerIDAsMultiSelect') ) {
        $Param{CustomerIDRaw} = $Param{CustomerID};
    }

    for my $ParameterName ( sort keys %Param ) {
        if (
            $ParameterName =~ m{ \A DynamicField_ ( [a-zA-Z\d]+ ) (?: _ ( [a-zA-Z\d]+ ) )? \z }xms
            )
        {
            my $FieldName = $1;
            my $Operator  = $2;

            # loop over the dynamic fields configured
            DYNAMICFIELD:
            for my $DynamicFieldConfig ( @{ $Self->{DynamicField} } ) {
                next DYNAMICFIELD if !IsHashRefWithData($DynamicFieldConfig);
                next DYNAMICFIELD if !$DynamicFieldConfig->{Name};

                # skip all fields that do not match with current field name
                # without the 'DynamicField_' prefix
                next DYNAMICFIELD if $DynamicFieldConfig->{Name} ne $FieldName;

                # skip all fields not designed to be supported by statistics
                my $IsStatsCondition = $DynamicFieldBackendObject->HasBehavior(
                    DynamicFieldConfig => $DynamicFieldConfig,
                    Behavior           => 'IsStatsCondition',
                );

                next DYNAMICFIELD if !$IsStatsCondition;

                # get new search parameter
                my $DynamicFieldStatsSearchParameter = $DynamicFieldBackendObject->StatsSearchFieldParameterBuild(
                    DynamicFieldConfig => $DynamicFieldConfig,
                    Value              => $Param{$ParameterName},
                    Operator           => $Operator,
                );

                # add new search parameter
                if ( !IsHashRefWithData( $Param{"DynamicField_$FieldName"} ) ) {
                    $Param{"DynamicField_$FieldName"} =
                        $DynamicFieldStatsSearchParameter;
                }

                # extend search parameter
                elsif ( IsHashRefWithData($DynamicFieldStatsSearchParameter) ) {
                    $Param{"DynamicField_$FieldName"} = {
                        %{ $Param{"DynamicField_$FieldName"} },
                        %{$DynamicFieldStatsSearchParameter},
                    };
                }
            }
        }
        elsif ( $AttributesToEscape{$ParameterName} ) {
            if ( ref $Param{$ParameterName} ) {
                if ( ref $Param{$ParameterName} eq 'ARRAY' ) {
                    $Param{$ParameterName} = [
                        map { $DBObject->QueryStringEscape( QueryString => $_ ) }
                            @{ $Param{$ParameterName} }
                    ];
                }
            }
            else {
                $Param{$ParameterName} = $DBObject->QueryStringEscape( QueryString => $Param{$ParameterName} );
            }
        }
    }

    if ( $ConfigObject->Get('Ticket::ArchiveSystem') ) {
        $Param{SearchInArchive} ||= '';
        if ( $Param{SearchInArchive} eq 'AllTickets' ) {
            $Param{ArchiveFlags} = [ 'y', 'n' ];
        }
        elsif ( $Param{SearchInArchive} eq 'ArchivedTickets' ) {
            $Param{ArchiveFlags} = ['y'];
        }
        else {
            $Param{ArchiveFlags} = ['n'];
        }
    }

    # search tickets
    return $Kernel::OM->Get('Kernel::System::Ticket')->TicketSearch(
        UserID     => 1,
        Result     => 'COUNT',
        Permission => 'ro',
        Limit      => 100_000_000,
        %Param,
    ) || 0;
}

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

    # get needed objects
    my $UserObject     = $Kernel::OM->Get('Kernel::System::User');
    my $QueueObject    = $Kernel::OM->Get('Kernel::System::Queue');
    my $StateObject    = $Kernel::OM->Get('Kernel::System::State');
    my $PriorityObject = $Kernel::OM->Get('Kernel::System::Priority');

    # wrap ids to used spelling
    for my $Use (qw(UseAsValueSeries UseAsRestriction UseAsXvalue)) {
        ELEMENT:
        for my $Element ( @{ $Param{$Use} } ) {
            next ELEMENT if !$Element || !$Element->{SelectedValues};
            my $ElementName = $Element->{Element};
            my $Values      = $Element->{SelectedValues};

            if ( $ElementName eq 'QueueIDs' || $ElementName eq 'CreatedQueueIDs' ) {
                ID:
                for my $ID ( @{$Values} ) {
                    next ID if !$ID;
                    $ID->{Content} = $QueueObject->QueueLookup( QueueID => $ID->{Content} );
                }
            }
            elsif ( $ElementName eq 'StateIDs' || $ElementName eq 'CreatedStateIDs' ) {
                my %StateList = $StateObject->StateList( UserID => 1 );
                ID:
                for my $ID ( @{$Values} ) {
                    next ID if !$ID;
                    $ID->{Content} = $StateList{ $ID->{Content} };
                }
            }
            elsif ( $ElementName eq 'PriorityIDs' || $ElementName eq 'CreatedPriorityIDs' ) {
                my %PriorityList = $PriorityObject->PriorityList( UserID => 1 );
                ID:
                for my $ID ( @{$Values} ) {
                    next ID if !$ID;
                    $ID->{Content} = $PriorityList{ $ID->{Content} };
                }
            }
            elsif (
                $ElementName eq 'OwnerIDs'
                || $ElementName eq 'CreatedUserIDs'
                || $ElementName eq 'ResponsibleIDs'
                )
            {
                ID:
                for my $ID ( @{$Values} ) {
                    next ID if !$ID;
                    $ID->{Content} = $UserObject->UserLookup( UserID => $ID->{Content} );
                }
            }

            # locks and statustype don't have to wrap because they are never different
        }
    }

    return \%Param;
}

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

    # get needed objects
    my $UserObject     = $Kernel::OM->Get('Kernel::System::User');
    my $QueueObject    = $Kernel::OM->Get('Kernel::System::Queue');
    my $StateObject    = $Kernel::OM->Get('Kernel::System::State');
    my $PriorityObject = $Kernel::OM->Get('Kernel::System::Priority');

    # wrap used spelling to ids
    for my $Use (qw(UseAsValueSeries UseAsRestriction UseAsXvalue)) {
        ELEMENT:
        for my $Element ( @{ $Param{$Use} } ) {
            next ELEMENT if !$Element || !$Element->{SelectedValues};
            my $ElementName = $Element->{Element};
            my $Values      = $Element->{SelectedValues};

            if ( $ElementName eq 'QueueIDs' || $ElementName eq 'CreatedQueueIDs' ) {
                ID:
                for my $ID ( @{$Values} ) {
                    next ID if !$ID;
                    if ( $QueueObject->QueueLookup( Queue => $ID->{Content} ) ) {
                        $ID->{Content} = $QueueObject->QueueLookup( Queue => $ID->{Content} );
                    }
                    else {
                        $Kernel::OM->Get('Kernel::System::Log')->Log(
                            Priority => 'error',
                            Message  => "Import: Can' find the queue $ID->{Content}!"
                        );
                        $ID = undef;
                    }
                }
            }
            elsif ( $ElementName eq 'StateIDs' || $ElementName eq 'CreatedStateIDs' ) {
                ID:
                for my $ID ( @{$Values} ) {
                    next ID if !$ID;

                    my %State = $StateObject->StateGet(
                        Name  => $ID->{Content},
                        Cache => 1,
                    );
                    if ( $State{ID} ) {
                        $ID->{Content} = $State{ID};
                    }
                    else {
                        $Kernel::OM->Get('Kernel::System::Log')->Log(
                            Priority => 'error',
                            Message  => "Import: Can' find state $ID->{Content}!"
                        );
                        $ID = undef;
                    }
                }
            }
            elsif ( $ElementName eq 'PriorityIDs' || $ElementName eq 'CreatedPriorityIDs' ) {
                my %PriorityList = $PriorityObject->PriorityList( UserID => 1 );
                my %PriorityIDs;
                for my $Key ( sort keys %PriorityList ) {
                    $PriorityIDs{ $PriorityList{$Key} } = $Key;
                }
                ID:
                for my $ID ( @{$Values} ) {
                    next ID if !$ID;

                    if ( $PriorityIDs{ $ID->{Content} } ) {
                        $ID->{Content} = $PriorityIDs{ $ID->{Content} };
                    }
                    else {
                        $Kernel::OM->Get('Kernel::System::Log')->Log(
                            Priority => 'error',
                            Message  => "Import: Can' find priority $ID->{Content}!"
                        );
                        $ID = undef;
                    }
                }
            }
            elsif (
                $ElementName eq 'OwnerIDs'
                || $ElementName eq 'CreatedUserIDs'
                || $ElementName eq 'ResponsibleIDs'
                )
            {
                ID:
                for my $ID ( @{$Values} ) {
                    next ID if !$ID;

                    if ( $UserObject->UserLookup( UserLogin => $ID->{Content} ) ) {
                        $ID->{Content} = $UserObject->UserLookup(
                            UserLogin => $ID->{Content}
                        );
                    }
                    else {
                        $Kernel::OM->Get('Kernel::System::Log')->Log(
                            Priority => 'error',
                            Message  => "Import: Can' find user $ID->{Content}!"
                        );
                        $ID = undef;
                    }
                }
            }

            # locks and status type don't have to wrap because they are never different
        }
    }
    return \%Param;
}

1;
