Add 35604 compatibility

Author: ammopt

Koha/Plugin/Com/PTFSEurope/PluginBackend.pm

@@ -143,6 +143,26 @@ sub uninstall() {
     return 1;
 }
 
+=head2 ILL availability methods
+
+=head3 availability_check_info
+
+Utilized if the AutoILLBackend sys pref is enabled
+Required for bug 35604
+
+=cut
+
+sub availability_check_info {
+    my ( $self, $params ) = @_;
+
+    my $endpoint = '/api/v1/contrib/' . $self->api_namespace . '/ill_backend_availability_pluginbackend?metadata=';
+
+    return {
+        endpoint => $endpoint,
+        name     => $metadata->{name},
+    };
+}
+
 =head2 ILL backend methods
 
 =head3 new_backend
@@ -810,6 +830,8 @@ sub capabilities {
         # with Koha versions prior to bug 33716
         should_display_availability => sub { _can_create_request(@_) },
 
+        provides_backend_availability_check => sub { return 1; },
+
         provides_batch_requests => sub { return 1; },
 
         # We can create ILL requests with data passed from the API

Koha/Plugin/Com/PTFSEurope/PluginBackend/Api.pm

@@ -0,0 +1,49 @@
+package Koha::Plugin::Com::PTFSEurope::PluginBackend::Api;
+
+use strict;
+use warnings;
+
+use JSON         qw( decode_json );
+use MIME::Base64 qw( decode_base64 );
+use URI::Escape  qw ( uri_unescape );
+
+use Mojo::Base 'Mojolicious::Controller';
+
+sub ill_backend_availability {
+    my $controller = shift->openapi->valid_input or return;
+
+    # Wait 2 seconds to simulate a real request to a third-party provider
+    sleep(2);
+
+    my $metadata = decode_json( decode_base64( uri_unescape( $controller->validation->param('metadata') || '' ) ) );
+
+    # Example of missing required metadata for availability check
+    unless ( $metadata->{doi} || $metadata->{pubmedid} ) {
+        return $controller->render(
+            status  => 400,
+            openapi => {
+                error => 'Missing required ISBN input data',
+            }
+        );
+    }
+
+    # 50% of the time will return success
+    if ( rand(100) >= 50){
+        return $controller->render(
+            status  => 200,
+            openapi => {
+                success => '',
+            }
+        );
+    # 50% of the time will return unavailable
+    }else{
+        return $controller->render(
+            status  => 404,
+            openapi => {
+                error => 'Provided ISBN is not available in PluginBackend',
+            }
+        );
+    }
+}
+
+1;

Koha/Plugin/Com/PTFSEurope/PluginBackend/openapi.json

@@ -0,0 +1,32 @@
+{
+    "/ill_backend_availability_pluginbackend": {
+        "get": {
+            "x-mojo-to": "Com::PTFSEurope::PluginBackend::Api#ill_backend_availability",
+            "operationId": "PluginBackendBackendAvailability",
+            "tags": ["ill","backend_availability"],
+            "parameters": [
+                {
+                    "name": "metadata",
+                    "in": "query",
+                    "description": "The metadata to use for checking availability",
+                    "required": true,
+                    "type": "string"
+                }
+            ],
+            "produces": [
+                "application/json"
+            ],
+            "responses": {
+                "200": {
+                    "description": "True or false"
+                },
+                "400": {
+                    "description": "Missing required metadata"
+                },
+                "404": {
+                    "description": "Not found"
+                }
+            }
+        }
+    }
+}