From 38bae937752ce1d71c0415be5719e18f8d6fb357 Mon Sep 17 00:00:00 2001
From: Jessie Keck <jessie.keck@gmail.com>
Date: Tue, 19 Dec 2017 15:21:43 -0800
Subject: [PATCH] Allow for exhibit specific manifest URL patterns to be used
 for our oembed tag.

This allows us to configure, on a per exhibit basis, to use a different oEmbed environment.
---
 CHANGELOG.md                            |  1 +
 app/helpers/application_helper.rb       |  3 +-
 config/initializers/oembed_providers.rb |  5 +++
 spec/helpers/application_helper_spec.rb | 41 +++++++++++++++++++++----
 4 files changed, 43 insertions(+), 7 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c52315bfa..3d10cb213 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Added
 - Added support for highlighting matching query terms from full-text content in search results #1030
 - Adds Stanford-specific helptext to the add admin/curator form #1040
+- Added support for using the exhibit specific manifest URL configuration to configure the SUL Embed environment to be used #1042
 ### Changed
 ### Deprecated
 ### Removed
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index eb9eb8db9..fae264914 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -45,7 +45,8 @@ def render_viewer_in_context(document, block)
   # @param [SolrDocument] document
   # @param [Integer] canvas_index
   def custom_render_oembed_tag_async(document, canvas_index)
-    url = document.first(blacklight_config.show.oembed_field)
+    url = document.exhibit_specific_manifest(current_exhibit.required_viewer.custom_manifest_pattern)
+    url ||= document.first(blacklight_config.show.oembed_field)
 
     content_tag :div, '', data: { embed_url: blacklight_oembed_engine.embed_url(url: url, canvas_index: canvas_index) }
   end
diff --git a/config/initializers/oembed_providers.rb b/config/initializers/oembed_providers.rb
index fbfb46d66..e6c3a958b 100644
--- a/config/initializers/oembed_providers.rb
+++ b/config/initializers/oembed_providers.rb
@@ -6,4 +6,9 @@
 purl_provider << 'http://purl.stanford.edu/*'
 purl_provider << 'https://purl.stanford.edu/*'
 purl_provider << 'http://searchworks.stanford.edu/*'
+
+purl_uat_provider = OEmbed::Provider.new('http://sul-purl-uat.stanford.edu/embed.{format}?&hide_title=true')
+purl_uat_provider << 'https://sul-purl-uat.stanford.edu/*'
+
 OEmbed::Providers.register(purl_provider)
+OEmbed::Providers.register(purl_uat_provider)
diff --git a/spec/helpers/application_helper_spec.rb b/spec/helpers/application_helper_spec.rb
index fb2cb6d2b..60164c019 100644
--- a/spec/helpers/application_helper_spec.rb
+++ b/spec/helpers/application_helper_spec.rb
@@ -20,13 +20,42 @@
   end
 
   describe '#custom_render_oembed_tag_async' do
-    let(:document) { SolrDocument.new(url_fulltext: ['http://example.com/stuff']) }
+    context 'when no custom viewer pattern is set' do
+      let(:document) { SolrDocument.new(url_fulltext: ['http://example.com/stuff']) }
 
-    it 'renders a div with embed attribute and canvas index param' do
-      expect(helper).to receive_messages(blacklight_config: CatalogController.blacklight_config)
-      rendered = helper.custom_render_oembed_tag_async(document, 3)
-      expect(rendered).to have_css '[data-embed-url="http://test.host/oembed/e'\
-        'mbed?canvas_index=3&url=http%3A%2F%2Fexample.com%2Fstuff"]'
+      it 'renders a div with embed attribute and canvas index param' do
+        expect(helper).to receive_messages(
+          blacklight_config: CatalogController.blacklight_config,
+          current_exhibit: create(:exhibit)
+        )
+        rendered = helper.custom_render_oembed_tag_async(document, 3)
+        expect(rendered).to have_css '[data-embed-url="http://test.host/oembed/e'\
+          'mbed?canvas_index=3&url=http%3A%2F%2Fexample.com%2Fstuff"]'
+      end
+    end
+
+    context 'when a custom viewer pattern is provided' do
+      let(:document) do
+        SolrDocument.new(
+          id: 'abc123',
+          url_fulltext: ['http://example.com/stuff'],
+          content_metadata_type_ssm: ['image'],
+          iiif_manifest_url_ssi: 'htts://example.com/info.json'
+        )
+      end
+
+      it 'uses a custom manifest pattern if set' do
+        expect(helper).to receive_messages(
+          current_exhibit: create(
+            :exhibit,
+            viewer: create(:viewer, custom_manifest_pattern: 'https://embed-example.com/{id}')
+          )
+        )
+        rendered = helper.custom_render_oembed_tag_async(document, 1)
+
+        expect(rendered).to have_css '[data-embed-url="http://test.host/oembed/e'\
+          'mbed?canvas_index=1&url=https%3A%2F%2Fembed-example.com%2Fabc123"]'
+      end
     end
   end