fix(hosts_helper): fix legacy ui

.rubocop.yml

@@ -11,3 +11,6 @@ inherit_mode:
 Metrics/BlockLength:
   Exclude:
     - 'lib/foreman_expire_hosts/engine.rb'
+
+Style/FormatString:
+  EnforcedStyle: percent

app/helpers/foreman_expire_hosts/hosts_helper.rb

@@ -12,5 +12,24 @@ def expire_hosts_host_multiple_actions
       end
       actions
     end
+
+    def host_expiry_warning_message(host)
+      return nil unless host.expires?
+
+      if host.expired_past_grace_period?
+        message = _('This host has expired %s ago and needs to be deleted manually.') % time_ago_in_words(host.expired_on)
+      elsif host.expired?
+        message = _('This host has expired %{time_ago} ago and will be deleted on %{delete_date}.') % { :delete_date => l(host.expiration_grace_period_end_date), :time_ago => time_ago_in_words(host.expired_on) }
+      elsif host.expires_today?
+        message = _('This host will expire today.')
+      elsif host.pending_expiration?
+        message = _('This host will expire in %{distance_of_time} (on %{expire_date}).') % { :expire_date => l(host.expired_on), :distance_of_time => future_time_in_words(host.expired_on) }
+      end
+      message
+    end
+
+    def future_time_in_words(to_time, options = {})
+      distance_of_time_in_words(to_time, Time.current, options)
+    end
   end
 end

lib/foreman_expire_hosts/engine.rb

@@ -87,7 +87,6 @@ class Engine < ::Rails::Engine
     config.to_prepare do
       begin
         ::Host::Managed.include ForemanExpireHosts::HostExt
-        ::HostsHelper.include ForemanExpireHosts::HostsHelperExtensions
         ::HostsController.prepend ForemanExpireHosts::HostControllerExtensions
         ::AuditsHelper.include ForemanExpireHosts::AuditsHelperExtensions
         ::Api::V2::HostsController.include ForemanExpireHosts::Api::V2::HostsControllerExtensions