Restructure omni services and add Chatwoot research snapshot

research/chatwoot/spec/models/channel/facebook_page_spec.rb

@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+require Rails.root.join 'spec/models/concerns/reauthorizable_shared.rb'
+
+RSpec.describe Channel::FacebookPage do
+  before do
+    stub_request(:post, /graph.facebook.com/)
+  end
+
+  let(:channel) { create(:channel_facebook_page) }
+
+  it { is_expected.to validate_presence_of(:account_id) }
+  # it { is_expected.to validate_uniqueness_of(:page_id).scoped_to(:account_id) }
+  it { is_expected.to belong_to(:account) }
+  it { is_expected.to have_one(:inbox).dependent(:destroy_async) }
+
+  describe 'concerns' do
+    it_behaves_like 'reauthorizable'
+
+    context 'when prompt_reauthorization!' do
+      it 'calls channel notifier mail for facebook' do
+        admin_mailer = double
+        mailer_double = double
+
+        expect(AdministratorNotifications::ChannelNotificationsMailer).to receive(:with).and_return(admin_mailer)
+        expect(admin_mailer).to receive(:facebook_disconnect).with(channel.inbox).and_return(mailer_double)
+        expect(mailer_double).to receive(:deliver_later)
+
+        channel.prompt_reauthorization!
+      end
+    end
+  end
+
+  it 'has a valid name' do
+    expect(channel.name).to eq('Facebook')
+  end
+end