feat: Add bulk imports API for contacts (#1724)

spec/factories/contact_inbox.rb

@@ -4,6 +4,18 @@ FactoryBot.define do
   factory :contact_inbox do
     contact
     inbox
-    source_id { SecureRandom.uuid }
+
+    after(:build) { |contact_inbox| contact_inbox.source_id ||= generate_source_id(contact_inbox) }
+  end
+end
+
+def generate_source_id(contact_inbox)
+  case contact_inbox.inbox.channel_type
+  when 'Channel::TwilioSms'
+    contact_inbox.inbox.channel.medium == 'sms' ? Faker::PhoneNumber.cell_phone_in_e164 : "whatsapp:#{Faker::PhoneNumber.cell_phone_in_e164}"
+  when 'Channel::Email'
+    "#{SecureRandom.uuid}@acme.inc"
+  else
+    SecureRandom.uuid
   end
 end