DPC-5182 Add headings, error messages for login.gov signin fail states

dpc-portal/app/components/page/utility/error_component.html.erb

@@ -32,5 +32,9 @@
         <%= render Core::Button::ButtonComponent.new(label: "Sign out of Login.gov",
             destination: login_dot_gov_logout_path,
             method: :delete) %>
+      <% when :login_gov_signin_cancel %>
+        <%= link_to 'Back to portal home', root_path, class: 'usa-button usa-button--outline', data: { turbo: false }%>
+      <% when :login_gov_signin_fail %>
+        <%= link_to 'Back to portal home', root_path, class: 'usa-button usa-button--outline', data: { turbo: false }%>
     <% end %>
 </div>

dpc-portal/app/components/page/utility/error_component_preview.rb

@@ -69,6 +69,16 @@ def no_account
         reason = 'no_account'
         render(Page::Utility::ErrorComponent.new(nil, reason))
       end
+
+      def login_gov_signin_cancel
+        reason = 'login_gov_signin_cancel'
+        render(Page::Utility::ErrorComponent.new(nil, reason))
+      end
+
+      def login_gov_signin_fail
+        reason = 'login_gov_signin_fail'
+        render(Page::Utility::ErrorComponent.new(nil, reason))
+      end
     end
   end
 end

dpc-portal/app/controllers/login_dot_gov_controller.rb

@@ -29,13 +29,13 @@ def failure
     if invitation_flow_match
       handle_invitation_flow_failure(invitation_flow_match[2])
     elsif params[:code]
-      @message = 'Something went wrong.'
       logger.error 'Login.gov Configuration error'
+      render(Page::Utility::ErrorComponent.new(nil, 'login_gov_signin_fail'))
     else
-      @message = 'You have decided not to authenticate via login.gov.'
       Rails.logger.info(['User cancelled login',
                          { actionContext: LoggingConstants::ActionContext::Authentication,
                            actionType: LoggingConstants::ActionType::UserCancelledLogin }])
+      render(Page::Utility::ErrorComponent.new(nil, 'login_gov_signin_cancel'))
     end
   end
 

dpc-portal/config/locales/en.yml

@@ -45,6 +45,10 @@ en:
     configuration_complete: Setup complete
     api_disabled: API disabled
     access_denied: Access denied
+    login_gov_signin_cancel_status: Login.gov sign-in incomplete
+    login_gov_signin_cancel_text: Login.gov sign-in was unsuccessful. If this was an error, try signing in again. 
+    login_gov_signin_fail_status: Login.gov sign-in failed
+    login_gov_signin_fail_text: Something went wrong while trying to sign-in with Login.gov. Please try again.
   cd_access:
     no_approved_enrollment_status: This organization is not currently approved by Medicare.
     no_approved_enrollment_text: This organization must have an approved enrollment status with Medicare to access beneficiary claims data.