Feature: Twilio SMS Channel (#658)

Twilio SMS Channel
Fixes :  #350

app/services/twilio/webhook_setup_service.rb

@@ -0,0 +1,35 @@
+class Twilio::WebhookSetupService
+  include Rails.application.routes.url_helpers
+
+  pattr_initialize [:inbox!]
+
+  def perform
+    if phone_numbers.empty?
+      Rails.logger.info "TWILIO_PHONE_NUMBER_NOT_FOUND: #{channel.phone_number}"
+    else
+      twilio_client
+        .incoming_phone_numbers(phonenumber_sid)
+        .update(sms_method: 'POST', sms_url: twilio_callback_index_url)
+    end
+  rescue Twilio::REST::TwilioError => e
+    Rails.logger.info "TWILIO_FAILURE: #{e.message}"
+  end
+
+  private
+
+  def phonenumber_sid
+    phone_numbers.first.sid
+  end
+
+  def phone_numbers
+    @phone_numbers ||= twilio_client.incoming_phone_numbers.list(phone_number: channel.phone_number)
+  end
+
+  def channel
+    @channel ||= inbox.channel
+  end
+
+  def twilio_client
+    @twilio_client ||= ::Twilio::REST::Client.new(channel.account_sid, channel.auth_token)
+  end
+end