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package RT::ObjectCustomField;

use strict;
use warnings;
no warnings qw(redefine);

sub Create {
    my $self = shift;
    my %args = (
        CustomField => 0,
        ObjectId    => 0,
        SortOrder   => undef,
        @_
    );

    my $cf = $self->CustomFieldObj( $args{'CustomField'} );
    unless ( $cf->id ) {
        $RT::Logger->error("Couldn't load '$args{'CustomField'}' custom field");
        return 0;
    }

    #XXX: Where is ACL check for 'AssignCustomFields'?

    my $ObjectCFs = RT::ObjectCustomFields->new($self->CurrentUser);
    $ObjectCFs->LimitToObjectId( $args{'ObjectId'} );
    $ObjectCFs->LimitToCustomField( $cf->id );
    $ObjectCFs->LimitToLookupType( $cf->LookupType );
    if ( my $first = $ObjectCFs->First ) {
        $self->Load( $first->id );
        return $first->id;
    }

    unless ( defined $args{'SortOrder'} ) {
        my $ObjectCFs = RT::ObjectCustomFields->new( $RT::SystemUser );
        $ObjectCFs->LimitToObjectId( $args{'ObjectId'} );
        $ObjectCFs->LimitToLookupType( $cf->LookupType );
        $ObjectCFs->OrderBy( FIELD => 'SortOrder', ORDER => 'DESC' );
        if ( my $first = $ObjectCFs->First ) {
            $args{'SortOrder'} = $first->SortOrder + 1;
        } else {
            $args{'SortOrder'} = 0;
        }
    }

    return $self->SUPER::Create(
        CustomField => $args{'CustomField'},
        ObjectId    => $args{'ObjectId'},
        SortOrder   => $args{'SortOrder'},
    );
}

sub Delete {
    my $self = shift;

    my $ObjectCFs = RT::ObjectCustomFields->new($self->CurrentUser);
    $ObjectCFs->LimitToObjectId($self->ObjectId);
    $ObjectCFs->LimitToLookupType($self->CustomFieldObj->LookupType);

    # Move everything below us up
    my $sort_order = $self->SortOrder;
    while (my $OCF = $ObjectCFs->Next) {
        my $this_order = $OCF->SortOrder;
        next if $this_order <= $sort_order; 
        $OCF->SetSortOrder($this_order - 1);
    }

    $self->SUPER::Delete;
}

sub CustomFieldObj {
    my $self = shift;
    my $id = shift || $self->CustomField;
    my $CF = RT::CustomField->new( $self->CurrentUser );
    $CF->Load( $id );
    return $CF;
}

1;