Improve enterprise removal (success case)

Make enterprise removal use turbo, which provides the following
benefits:

* More responsive removal since there's no full page reload.
* A success flash message (previously nothing was displayed).
* No double alert prompt.

It also goes in the direction of removing mrujs in favor of turbo.

app/controllers/admin/enterprises_controller.rb

@@ -162,6 +162,15 @@ module Admin
       end
     end
 
+    def destroy
+      @object.destroy
+      flash.now[:success] = flash_message_for(@object, :successfully_removed)
+
+      respond_to do |format|
+        format.turbo_stream { render :destroy, status: :ok }
+      end
+    end
+
     protected
 
     def delete_custom_tab

app/helpers/enterprises_helper.rb

@@ -63,8 +63,11 @@ module EnterprisesHelper
     url = object_url(enterprise)
     name = t(:delete)
     options = {}
-    options[:class] = "delete-resource"
-    options[:data] = { action: 'remove', confirm: enterprise_confirm_delete_message(enterprise) }
+    options[:data] = {
+      turbo: true,
+      'turbo-method': 'delete',
+      'turbo-confirm': enterprise_confirm_delete_message(enterprise)
+    }
     link_to_with_icon 'icon-trash', name, url, options
   end
 

app/views/admin/enterprises/_admin_index.html.haml

@@ -22,7 +22,7 @@
     %tbody
       = f.fields_for :collection do |enterprise_form|
         - enterprise = enterprise_form.object
-        %tr{class: "enterprise-#{enterprise.id}"}
+        %tr{class: "enterprise-#{enterprise.id}", id: "resource-#{enterprise.id}"}
           %td= link_to enterprise.name, main_app.edit_admin_enterprise_path(enterprise)
           %td
             = enterprise_form.check_box :is_primary_producer

app/views/admin/enterprises/destroy.turbo_stream.haml

@@ -0,0 +1,4 @@
+- unless flash[:error]
+  = turbo_stream.remove "resource-#{@object.id}"
+= turbo_stream.append "flashes" do
+  = render(partial: 'admin/shared/flashes', locals: { flashes: flash })

spec/system/admin/enterprises_spec.rb

@@ -68,6 +68,26 @@ RSpec.describe '
     expect(page).to have_checked_field "enterprise_visible_only_through_links"
   end
 
+  it "deleting an existing enterprise successfully" do
+    enterprise = create(:enterprise)
+
+    user = create(:user)
+
+    admin = login_as_admin
+
+    visit '/admin/enterprises'
+
+    expect do
+      accept_alert do
+        within "tr.enterprise-#{enterprise.id}" do
+          first("a", text: 'Delete').click
+        end
+      end
+
+      expect(page).to have_content("Successfully Removed")
+    end.to change{ Enterprise.count }.by(-1)
+  end
+
   it "editing an existing enterprise" do
     @enterprise = create(:enterprise)
     e2 = create(:enterprise)