Bug 31536: Add UNIMARC framework plugin to fetch PPN from sudoc.fr

This plugin uses sudoc.fr webservices (isbn2ppn, issn2ppn, ean2ppn) to
search a PPN using ISBN, ISSN or EAN as search criteria.
The plugin expects than ISBN is in 010$a, ISSN is in 011$a and EAN is in
073$a.

Test plan:
1. Configure the default MARC framework so that 009 uses this plugin
   (unimarc_field_009_ppn.pl)
2. Start creating a new bibliographic record
3. In the editor, write "0195141156" in the 010$a input, then move the
   focus out of the input (by pressing Tab, or clicking elsewhere on the
   page)
   The 009 field should be automatically filled with "06735209X"
4. Empty the 010$a input, then empty the 009 input
5. Write "2262-4694" in the 011$a input, then move the focus out of the
   input
   The 009 field should be automatically filled with "166197947"
6. Empty the 011$a input, then empty the 009 input
7. Write "9782070424597" in the 073$a input, then move the focus out of
   the input
   The 009 field should be automatically filled with "151662983"
8. Empty only the 009 field, keep the same value for 073$a and save the
   bibliographic record.
9. Edit the same record, you should have an empty 009 field and 073$a =
   "9782070424597".
   Click on the 009 field input, it should be automatically filled with
   "151662983"

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>

diff --git a/cataloguing/value_builder/unimarc_field_009_ppn.pl b/cataloguing/value_builder/unimarc_field_009_ppn.pl
new file mode 100755 (executable)
index 0000000..be56184
--- /dev/null
+++ b/cataloguing/value_builder/unimarc_field_009_ppn.pl
@@ -0,0 +1,118 @@
+#!/usr/bin/perl
+
+# Converted to new plugin style (Bug 13437)
+
+# Copyright 2000-2002 Katipo Communications
+#
+# This file is part of Koha.
+#
+# Koha is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# Koha is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Koha; if not, see <http://www.gnu.org/licenses>.
+
+use Modern::Perl;
+use LWP::Simple qw();
+use LWP::UserAgent;
+use JSON;
+use C4::Auth qw ( get_template_and_user );
+use C4::Output qw ( output_html_with_http_headers );
+
+my $res;
+my $builder = sub {
+    my ( $params ) = @_;
+    my $res= qq|
+        <script>
+            jQuery(document).ready(function () {
+                const input = document.getElementById('$params->{id}');
+                const isbn_input = jQuery('input[id^="tag_010_subfield_a_"]');
+                const issn_input = jQuery('input[id^="tag_011_subfield_a_"]');
+                const ean_input = jQuery('input[id^="tag_073_subfield_a_"]');
+
+                isbn_input.on('change', function () {
+                    update_ppn('isbn', this.value);
+                });
+                issn_input.on('change', function () {
+                    update_ppn('issn', this.value);
+                });
+                ean_input.on('change', function () {
+                    update_ppn('ean', this.value);
+                });
+
+                jQuery(input).on('focus', function () {
+                    const isbn = isbn_input.val().trim();
+                    const issn = issn_input.val().trim();
+                    const ean = ean_input.val().trim();
+                    if (isbn !== '') {
+                        update_ppn('isbn', isbn);
+                    } else if (issn !== '') {
+                        update_ppn('issn', issn);
+                    } else if (ean !== '') {
+                        update_ppn('ean', ean);
+                    }
+                });
+
+                function update_ppn(search_type, search_text) {
+                    if (input.value.trim() === '') {
+                        get_ppn(search_type, search_text).then(function (ppn) {
+                            input.value = ppn;
+                        });
+                    }
+                }
+
+                function get_ppn(search_type, search_text) {
+                    const url = '/cgi-bin/koha/cataloguing/plugin_launcher.pl?plugin_name=unimarc_field_009_ppn.pl&' + search_type + '=' + encodeURIComponent(search_text);
+
+                    return jQuery.get(url);
+                }
+            });
+        </script>
+    |;
+    return $res;
+};
+
+my $launcher = sub {
+    my ( $params ) = @_;
+    my $input = $params->{cgi};
+    my $isbn = $input->param('isbn');
+    my $issn = $input->param('issn');
+    my $ean = $input->param('ean');
+
+    my ($template, $loggedinuser, $cookie) = get_template_and_user({
+        template_name   => "cataloguing/value_builder/ajax.tt",
+        query           => $input,
+        type            => "intranet",
+        flagsrequired   => {editcatalogue => '*'},
+    });
+
+    my $url;
+    if ( $isbn ) {
+        $url = "https://www.sudoc.fr/services/isbn2ppn/$isbn&format=text/json";
+    } elsif ( $issn ) {
+        $url = "https://www.sudoc.fr/services/issn2ppn/$issn&format=text/json";
+    } elsif ( $ean ) {
+        $url = "https://www.sudoc.fr/services/ean2ppn/$ean&format=text/json";
+    }
+
+    if ($url) {
+        my $json = LWP::Simple::get($url);
+        if (defined $json) {
+            my $response = JSON->new->utf8->decode($json);
+            my $result = $response->{sudoc}->{query}->{result};
+            my $ppn = ref $result eq 'ARRAY' ? $result->[0]->{ppn} : $result->{ppn};
+            $template->param( return => $ppn );
+        }
+    }
+
+    output_html_with_http_headers $input, $cookie, $template->output;
+};
+
+return { builder => $builder, launcher => $launcher };