Convert downlaod collapse to a view component with a spec

app/components/catalog/downloads_collapse_component.html.erb

@@ -0,0 +1,32 @@
+<%# Renders the options of the downloads dropdown button %>
+
+<% if @document.multi_direct_downloads.present? %>
+  <% @document.multi_direct_downloads.each do |download| %>
+    <%= download_link_file(download[0], @document.id, download[1]) %>
+  <% end %>
+<% end %>
+<% if @document.direct_download.present? %>
+  <% if @document.direct_download[:download].is_a? Array %>
+    <% @document.direct_download[:download].each do |download| %>
+      <%= download_link_file(download['label'], @document.id, download['url']) %>
+    <% end %>
+  <% end %>
+  <% if @document.direct_download[:download].is_a? String %>
+    <%= download_link_file(download_text(@document.file_format), @document.id, @document.direct_download[:download], @document.restricted? ? "_blank" : nil) %>
+  <% end %>
+<% end %>
+
+<% if @document.hgl_download.present? %>
+  <%= download_link_hgl(download_text(@document.download_types.first[0]), @document) %>
+<% end %>
+
+<% if @document.iiif_download.present? %>
+  <%= download_link_iiif %>
+<% end %>
+
+<% if @document.download_types.present? %>
+  <% @document.download_types.each do |type| %>
+    <% next if type.first == :kmz %>
+    <%= download_link_generated(type.first, @document) %>
+  <% end %>
+<% end %>

app/components/catalog/downloads_collapse_component.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+module Catalog
+  class DownloadsCollapseComponent < ViewComponent::Base
+    def initialize(document:)
+      @document = document
+    end
+  end
+end

app/views/catalog/_downloads_collapse.html.erb

@@ -1,5 +1,4 @@
 <%# Renders the options of the downloads dropdown button %>
-<% document ||= @document %>
 
 <% if document.multi_direct_downloads.present? %>
   <% document.multi_direct_downloads.each do |download| %>

app/views/catalog/_show_downloads.html.erb

@@ -9,7 +9,7 @@
       </button>
       <div class="collapse" id="downloads-collapse">
         <div class="card card-body">
-          <%= render 'downloads_collapse' %>
+          <%= render Catalog::DownloadsCollapseComponent.new(document: @document) %>
         </div>
       </div>
     </div>

spec/components/catalog/downloads_collapse_component_spec.rb

@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Catalog::DownloadsCollapseComponent, type: :component do
+  let(:document) { instance_double(SolrDocument, id: 123) }
+
+  before do
+    allow(document).to receive_messages(
+      multi_direct_downloads: [],
+      file_format: 'Shapefile',
+      direct_download: { download: 'https://example.com/download' },
+      restricted?: restricted,
+      hgl_download: false,
+      iiif_download: false,
+      download_types: []
+    )
+  end
+
+  context 'when the download is restricted' do
+    let(:restricted) { true }
+
+    it 'renders restricted links with a target of _blank' do
+      render_inline(described_class.new(document:))
+
+      expect(page).to have_link('Original Shapefile', href: 'https://example.com/download', target: '_blank')
+    end
+  end
+
+  context 'when the download is not restricted' do
+    let(:restricted) { false }
+
+    it 'renders the download link with no target' do
+      render_inline(described_class.new(document:))
+
+      expect(page).to have_link('Original Shapefile', href: 'https://example.com/download', target: nil)
+    end
+  end
+end