Add a method for bulk sanitization of emails

This convenience method just makes it easy to clean up lots of emails
without having messy logic in controllers or other POROs.

lib/email_repair/mechanic.rb

@@ -11,6 +11,21 @@ def repairs
       ]
     end
 
+    def repair_all(emails)
+      valid_emails = []
+      invalid_emails = []
+
+      emails.each do |email|
+        repaired_email = repair(email)
+        repaired_email ? valid_emails << repaired_email : invalid_emails << email
+      end
+
+      OpenStruct.new(
+        sanitized_emails: sanitized_emails,
+        invalid_emails: invalid_emails,
+      )
+    end
+
     def repair(email)
       return unless email
 

spec/lib/email_repair/mechanic_spec.rb

@@ -1,6 +1,21 @@
 require 'spec_helper'
 
 module EmailRepair
+  describe Mechanic, '#repair_all' do
+
+    it 'sanitizes an array of emails and returns bulk results' do
+      mechanic = Mechanic.new
+      salvageable_emails = %w(One@@two.com three@four.com)
+      sanitized_emails = %w(one@two.com three@four.com)
+      bad_emails = %w(bleep@blop plooooooop)
+
+      result = mechanic.repair_all(salvageable_emails + bad_emails)
+      expect(result.valid_emails).to match_array sanitized_emails
+      expect(result.invalid_emails).to match_array bad_emails
+    end
+
+  end
+
   describe Mechanic, '#repair' do
     let(:mechanic) { Mechanic.new }