use subscription service for canceling subscriptions

app/controllers/admin_controller.rb

@@ -1,6 +1,6 @@
 class AdminController < ApplicationController
   layout 'admin'
-  layout 'application', only: [:unsubscribe]
+  layout 'application', only: [:unsubscribe, :perform_unsubscribe]
 
   before_action :authenticate_user!
   before_action :require_admin_access
@@ -45,7 +45,9 @@ class AdminController < ApplicationController
     emails = params[:emails].split(/[\r|\n]+/)
     @users = User.where(email: emails)
     @users.update_all(selected_billing_plan_id: 1)
-    Subscription.where(user_id: @users.pluck(:id)).where('end_date > ?', DateTime.current).update_all(end_date: DateTime.current)
+    @users.each do |user|
+      SubscriptionService.cancel_all_existing_subscriptions(user)
+    end
   end
 
   private

app/views/admin/perform_unsubscribe.html.erb

@@ -27,3 +27,5 @@
 
   </div>
 </div>
+
+<%= link_to 'Unsubscribe more users', mass_unsubscribe_path, class: 'btn white black-text' %>

config/routes.rb

@@ -168,7 +168,7 @@ Rails.application.routes.draw do
     get '/content_type/:type', to: 'admin#content_type', as: :admin_content_type
     get '/attributes', to: 'admin#attributes', as: :admin_attributes
     get '/masquerade/:user_id', to: 'admin#masquerade', as: :masquerade
-    get '/unsubscribe', to: 'admin#unsubscribe'
+    get '/unsubscribe', to: 'admin#unsubscribe', as: :mass_unsubscribe
     post '/perform_unsubscribe', to: 'admin#perform_unsubscribe', as: :perform_unsubscribe
   end
   mount RailsAdmin::Engine => '/admin', as: 'rails_admin'