package Koha::Plugin::MarcFieldValues;

use Modern::Perl;

use MARC::Field;

use MARC::Record;

use base qw(Koha::Plugins::Base);

our $VERSION = 1.00;

our $metadata = {

    name            => 'MarcFieldValues',

    author          => 'M. de Rooy',

    class           => 'Koha::Plugin::MarcFieldValues',

    description     => 'Convert MARC fields from plain text',

    date_authored   => '2017-08-08',

    date_updated    => '2017-08-08',

    minimum_version => '16.11',

    maximum_version => undef,

    version         => $VERSION,

    input_format    => 'Plain text',

};

=head1 METHODS

=head2 new

    Create new object

=cut

sub new {

    my ( $class, $args ) = @_;

    $args->{'metadata'} = $metadata;

    my $self = $class->SUPER::new($args);

    return $self;

}

=head2 to_marc

    Create MARC record from plain text lines in the form:

        field [,ind1|,ind2|,subcode] = value

    Example:

        003 = OrgCode

        100,a = Author

        245,ind2 = 0

        245,a = Title

=cut

sub to_marc {

    my ( $self, $args ) = @_;

    # $args->{data} contains text to convert to MARC

    my $retval = '';

    my @records = split "\n\n", $args->{data};

    foreach my $rec ( @records ) {

        my @lines = split "\n", $rec;

        my $marc = MARC::Record->new;

        my $inds = {};

        foreach my $line ( @lines ) {

            # each line is of the form field [,ind1|,ind2|,subcode] = value

            my @temp = split /\s*=\s*/, $line, 2;

            next if @temp < 2;

            $temp[0] =~ s/^\s*//;

            $temp[1] =~ s/\s*$//;

            my $value = $temp[1];

            @temp = split /\s*,\s*/, $temp[0];

            if( @temp > 1 && $temp[1] =~ /ind[12]/ ) {

                $inds->{$temp[0]}->{$temp[1]} = substr($value, 0, 1);

                next;

            }

            $marc->append_fields( MARC::Field->new(

                $temp[0],

                $temp[0] < 10

                    ? ()

                    : ( ( $inds->{$temp[0]} ? $inds->{$temp[0]}->{ind1} // '' : '', $inds->{$temp[0]} ? $inds->{$temp[0]}->{ind2} // '' : ''), substr( $temp[1], 0, 1 ) ),

                $value,

            ));

        }

        $retval .= $marc->as_usmarc . "\n";

    }

    return $retval;

}

1;

use Koha::Database;

use Koha::Plugins;

subtest "RecordsFromMarcPlugin" => sub {

    plan tests => 5;

    # Create a test file

    my ( $fh, $name ) = tempfile();

    print $fh q|

003 = NLAmRIJ

100,a = Author

245,ind2 = 0

245,a = Silence in the library

500 , a= Some note

100,a = Another

245,a = Noise in the library|;

    close $fh;

    t::lib::Mocks::mock_config( 'pluginsdir', dirname(__FILE__) . '/..' );

    my ( $plugin ) = Koha::Plugins->new->GetPlugins({ metadata => { name => 'MarcFieldValues' } });

    isnt( $plugin, undef, "Plugin found" );

    my $records = C4::ImportBatch::RecordsFromMarcPlugin( $name, ref $plugin, 'UTF-8' );

    is( @$records, 2, 'Two results returned' );

    is( ref $records->[0], 'MARC::Record', 'Returned MARC::Record object' );

    is( $records->[0]->subfield('245', 'a'), 'Silence in the library',

        'Checked one field in first record' );

    is( $records->[1]->subfield('100', 'a'), 'Another',

        'Checked one field in second record' );

};