Update package_presenter for NuGet metadata

Adds support for NuGet metadata
Adds support for dependency links
Tests updated for above

ee/app/presenters/packages/detail/package_presenter.rb

@@ -21,6 +21,8 @@ module Packages
         }
 
         package_detail[:maven_metadatum] = @package.maven_metadatum if @package.maven_metadatum
+        package_detail[:nuget_metadatum] = @package.nuget_metadatum if @package.nuget_metadatum
+        package_detail[:dependency_links] = @package.dependency_links.map { |dl| build_dependency_links(dl) } if @package.dependency_links
         package_detail[:pipeline] = build_pipeline_info(@package.build_info.pipeline) if @package.build_info
 
         package_detail
@@ -58,6 +60,14 @@ module Packages
           name: user.name
         }
       end
+
+      def build_dependency_links(link)
+        {
+          name: link.dependency.name,
+          version_pattern: link.dependency.version_pattern,
+          target_framework: link.nuget_metadatum.target_framework
+        }
+      end
     end
   end
 end

ee/spec/presenters/packages/detail/package_presenter_spec.rb

@@ -43,7 +43,8 @@ describe ::Packages::Detail::PackagePresenter do
       project_id: package.project_id,
       tags: package.tags.as_json,
       updated_at: package.updated_at,
-      version: package.version
+      version: package.version,
+      dependency_links: []
     }
   end
 
@@ -65,6 +66,17 @@ describe ::Packages::Detail::PackagePresenter do
         expect(presenter.detail_view).to eq expected_package_details
       end
     end
+
+    context 'with nuget_metadatum' do
+      let_it_be(:package) { create(:nuget_package, project: project) }
+      let_it_be(:nuget_metadatum) { create(:nuget_metadatum, package: package) }
+
+      it 'returns nuget_metadatum' do
+        expected_package_details[:nuget_metadatum] = nuget_metadatum
+
+        expect(presenter.detail_view).to eq expected_package_details
+      end
+    end
   end
 
   it 'build_package_file_view returns correct file data' do
@@ -88,4 +100,21 @@ describe ::Packages::Detail::PackagePresenter do
       expect(presenter.build_user_info(nil)).to eq nil
     end
   end
+
+  context 'build_dependency_links' do
+    let_it_be(:package) { create(:nuget_package, project: project) }
+    let_it_be(:dependency_link) { create(:packages_dependency_link, package: package) }
+    let_it_be(:nuget_dependency) { create(:nuget_dependency_link_metadatum, dependency_link: dependency_link) }
+    let_it_be(:expected_link) do
+      {
+        name: dependency_link.dependency.name,
+        version_pattern: dependency_link.dependency.version_pattern,
+        target_framework: nuget_dependency.target_framework
+      }
+    end
+
+    it 'returns correct dependency data for nuget packages' do
+      expect(presenter.build_dependency_links(dependency_link)).to eq expected_link
+    end
+  end
 end