lib/email_prefixer/interceptor.rb in email_prefixer-1.1.0 vs lib/email_prefixer/interceptor.rb in email_prefixer-1.2.0.pre.1

@@ -1,24 +1,15 @@
 module EmailPrefixer
   class Interceptor
-    extend Forwardable
-    def_delegators :@configuration, :application_name, :stage_name
+    attr_reader :configuration
 
-    def initialize
-      @configuration = EmailPrefixer.configuration
+    def initialize(configuration)
+      @configuration = configuration
     end
 
     def delivering_email(mail)
-      mail.subject.prepend(subject_prefix)
+      prefix = configuration.builder.call
+      mail.subject.prepend(prefix)
     end
     alias_method :previewing_email, :delivering_email
-
-    private
-
-    def subject_prefix
-      prefixes = []
-      prefixes << application_name
-      prefixes << stage_name.upcase unless stage_name == 'production'
-      "[#{prefixes.join(' ')}] "
-    end
   end
 end