From b79196013d619aefc521f8886744c4d3057b9e07 Mon Sep 17 00:00:00 2001
From: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Date: Mon, 5 Feb 2024 13:09:54 +0000
Subject: [PATCH] Bug 35993: Add SimpleMarc::update_last_transaction_time

Note: This routine does not check field existence like
ModBiblioMarc does/did (see next patch). So it inserts
a field 005 if it is not present.

Test plan:
Run t/SimpleMARC.t

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Phil Ringnalda <phil@chetcolibrary.org>
---
 Koha/SimpleMARC.pm | 49 +++++++++++++++++++++++++++++++++++++---------
 t/SimpleMARC.t     | 20 +++++++++++++++++--
 2 files changed, 58 insertions(+), 11 deletions(-)

diff --git a/Koha/SimpleMARC.pm b/Koha/SimpleMARC.pm
index a77ce9ea9e..be7f025ea2 100644
--- a/Koha/SimpleMARC.pm
+++ b/Koha/SimpleMARC.pm
@@ -18,21 +18,24 @@ package Koha::SimpleMARC;
 
 use Modern::Perl;
 
+use constant LAST_TRANSACTION_FIELD => q/005/;    # MARC21/UNIMARC
+
 our (@ISA, @EXPORT_OK);
 BEGIN {
     require Exporter;
     our @ISA = qw(Exporter);
 
     @EXPORT_OK = qw(
-      read_field
-      add_field
-      update_field
-      copy_field
-      copy_and_replace_field
-      move_field
-      delete_field
-      field_exists
-      field_equals
+        read_field
+        add_field
+        update_field
+        copy_field
+        copy_and_replace_field
+        move_field
+        delete_field
+        field_exists
+        field_equals
+        update_last_transaction_time
     );
 }
 
@@ -525,6 +528,33 @@ sub delete_field {
     }
 }
 
+=head3 update_last_transaction_time
+
+  update_last_transaction_time( { record => $record } );
+
+  Inserts or updates field for last transaction (005)
+
+=cut
+
+sub update_last_transaction_time {
+    my ($params) = @_;
+    my $record = $params->{record};
+
+    my @localtime = (localtime)[ 5, 4, 3, 2, 1, 0 ];
+    $localtime[0] += 1900;    # add century
+    $localtime[1]++;          # month 1-based
+
+    my $value = sprintf( "%4d%02d%02d%02d%02d%04.1f", @localtime );
+    my $field;
+    if ( $field = $record->field(LAST_TRANSACTION_FIELD) ) {
+        $field->update($value);
+    } else {
+        $record->insert_fields_ordered(
+            MARC::Field->new( LAST_TRANSACTION_FIELD, $value ),
+        );
+    }
+}
+
 sub _delete_field {
     my ( $params ) = @_;
     my $record = $params->{record};
@@ -663,5 +693,6 @@ sub _modify_values {
     }
     return @$values;
 }
+
 1;
 __END__
diff --git a/t/SimpleMARC.t b/t/SimpleMARC.t
index cb53df77e5..3e8e840ff8 100755
--- a/t/SimpleMARC.t
+++ b/t/SimpleMARC.t
@@ -2,11 +2,14 @@
 
 use Modern::Perl;
 
-use Test::More tests => 11;
+use Test::More tests => 12;
 
 use_ok("MARC::Field");
 use_ok("MARC::Record");
-use_ok("Koha::SimpleMARC", qw( field_exists read_field update_field copy_field copy_and_replace_field move_field delete_field field_equals ));
+use_ok(
+    "Koha::SimpleMARC",
+    qw( field_exists read_field update_field copy_field copy_and_replace_field move_field delete_field field_equals update_last_transaction_time )
+);
 
 sub new_record {
     my $record = MARC::Record->new;
@@ -1833,3 +1836,16 @@ subtest 'field_equals' => sub {
         is_deeply( $match, [1], 'first 008 control field matches "eng"' );
     };
 };
+
+subtest 'update_last_transaction_time' => sub {
+    plan tests => 3;
+    my $record = MARC::Record->new;
+    update_last_transaction_time( { record => $record } );
+    my $value1 = $record->field('005')->data;
+    like( $value1, qr/^\d{14}\.0$/, 'Looks like a 005' );
+    sleep 1;
+    update_last_transaction_time( { record => $record } );
+    my $value2 = $record->field('005')->data;
+    like( $value2, qr/^\d{14}\.0$/, 'Still looks like a 005' );
+    isnt( $value1, $value2, 'Should not be the same a second later' );
+};
-- 
2.40.0