Added "Latest Download" link to inventory download modal (#1123)

* Added latest download link to controller, added link to modal

* Added a test to the modal

app/assets/stylesheets/_projects.scss

@@ -92,3 +92,8 @@
     }
 
 }
+
+.latest-download-link {
+    margin: 1em 0em 1em 0em;
+    display: block;
+}

app/controllers/projects_controller.rb

@@ -114,6 +114,7 @@ def show
 
     @project_purpose = @project_metadata[:project_purpose]
 
+
     respond_to do |format|
       format.html do
         @project = ProjectShowPresenter.new(project)
@@ -176,6 +177,7 @@ def contents
     add_breadcrumb("Contents", project_contents_path)
     project
 
+    @latest_completed_download = current_user.user_requests.where(project_id: @project.id, state: "completed").order(:completion_time).last
     @storage_usage = project.storage_usage(session_id: current_user.mediaflux_session)
     @storage_capacity = project.storage_capacity(session_id: current_user.mediaflux_session)
 

app/views/projects/_latest_download_link.html.erb

@@ -0,0 +1 @@
+<%= link_to("Download latest report - generated #{time_ago_in_words(@latest_completed_download.completion_time)} ago", project_file_list_download_path(@latest_completed_download.id, target: "_blank")) %>

app/views/projects/contents.html.erb

@@ -38,6 +38,8 @@
         </div>
         <div class="modal-body">
           This will generate a list of <%= @num_files %> files and their attributes in a downloadable CSV. Do you wish to continue?
+
+          <span class="latest-download-link"><%= render partial: "latest_download_link", locals: { project: @project } if @latest_completed_download %></span>
         </div>
         <div class="modal-footer">
           <button type="button" id="request-list-contents" class="btn btn-success" data-list-contents-path="<%= project_list_contents_path %>" >Yes</button>

spec/system/project_show_spec.rb

@@ -208,6 +208,28 @@
         find("a.paginate_button", text: 3).click
         expect(page).to have_content(last_file.name)
       end
+
+      context "when downloads do not exist" do
+        it "does not include a link to the latest download in the download modal" do
+          sign_in sponsor_user
+          visit "/projects/#{project.id}/contents"
+          click_on("Download Complete List")
+          expect(page).not_to have_content("Download latest")
+        end
+      end
+
+      context "when downloads exist" do
+        before do
+          FileInventoryRequest.create!(user_id: sponsor_user.id, project_id: project.id, job_id: 123, state: UserRequest::COMPLETED,
+                                       request_details: { project_title: project.title }, completion_time: 1.day.ago)
+        end
+        it "includes a link to the latest download in the download modal" do
+          sign_in sponsor_user
+          visit "/projects/#{project.id}/contents"
+          click_on("Download Complete List")
+          expect(page).to have_content("Download latest")
+        end
+      end
     end
 
     context "system administrator" do