Refactor Akismet service

- Takes serialisable string arguments instead of an object

app/services/akismet_service.rb

 # frozen_string_literal: true
 
 class AkismetService
-  attr_accessor :owner, :text, :options
+  attr_accessor :text, :options
 
-  def initialize(owner, text, options = {})
-    @owner = owner
+  def initialize(owner_name, owner_email, text, options = {})
+    @owner_name = owner_name
+    @owner_email = owner_email
     @text = text
     @options = options
   end
@@ -16,8 +17,8 @@ class AkismetService
       type: 'comment',
       text: text,
       created_at: DateTime.now,
-      author: owner.name,
-      author_email: owner.email,
+      author: owner_name,
+      author_email: owner_email,
       referrer: options[:referrer]
     }
 
@@ -40,6 +41,8 @@ class AkismetService
 
   private
 
+  attr_accessor :owner_name, :owner_email
+
   def akismet_client
     @akismet_client ||= ::Akismet::Client.new(Gitlab::CurrentSettings.akismet_api_key,
                                               Gitlab.config.gitlab.url)
@@ -55,8 +58,8 @@ class AkismetService
     params = {
       type: 'comment',
       text: text,
-      author: owner.name,
-      author_email: owner.email
+      author: owner_name,
+      author_email: owner_email
     }
 
     begin

app/services/ham_service.rb

@@ -18,8 +18,10 @@ class HamService
   private
 
   def akismet
+    user = spam_log.user
     @akismet ||= AkismetService.new(
-      spam_log.user,
+      user.name,
+      user.email,
       spam_log.text,
       ip_address: spam_log.source_ip,
       user_agent: spam_log.user_agent

app/services/spam_service.rb

@@ -56,7 +56,8 @@ class SpamService
 
   def akismet
     @akismet ||= AkismetService.new(
-      spammable_owner,
+      spammable_owner.name,
+      spammable_owner.email,
       spammable.spammable_text,
       options
     )