Restructure omni services and add Chatwoot research snapshot

research/chatwoot/spec/models/agent_bot_spec.rb

@@ -0,0 +1,61 @@
+require 'rails_helper'
+require Rails.root.join 'spec/models/concerns/access_tokenable_shared.rb'
+require Rails.root.join 'spec/models/concerns/avatarable_shared.rb'
+
+RSpec.describe AgentBot do
+  describe 'associations' do
+    it { is_expected.to have_many(:agent_bot_inboxes) }
+    it { is_expected.to have_many(:inboxes) }
+  end
+
+  describe 'concerns' do
+    it_behaves_like 'access_tokenable'
+    it_behaves_like 'avatarable'
+  end
+
+  context 'when it validates outgoing_url length' do
+    let(:agent_bot) { create(:agent_bot) }
+
+    it 'valid when within limit' do
+      agent_bot.outgoing_url = 'a' * Limits::URL_LENGTH_LIMIT
+      expect(agent_bot.valid?).to be true
+    end
+
+    it 'invalid when crossed the limit' do
+      agent_bot.outgoing_url = 'a' * (Limits::URL_LENGTH_LIMIT + 1)
+      agent_bot.valid?
+      expect(agent_bot.errors[:outgoing_url]).to include("is too long (maximum is #{Limits::URL_LENGTH_LIMIT} characters)")
+    end
+  end
+
+  context 'when agent bot is deleted' do
+    let(:agent_bot) { create(:agent_bot) }
+    let(:message) { create(:message, sender: agent_bot) }
+
+    it 'nullifies the message sender key' do
+      expect(message.sender).to eq agent_bot
+      agent_bot.destroy!
+
+      expect(message.reload.sender).to be_nil
+    end
+  end
+
+  describe '#system_bot?' do
+    context 'when account_id is nil' do
+      let(:agent_bot) { create(:agent_bot, account_id: nil) }
+
+      it 'returns true' do
+        expect(agent_bot.system_bot?).to be true
+      end
+    end
+
+    context 'when account_id is present' do
+      let(:account) { create(:account) }
+      let(:agent_bot) { create(:agent_bot, account: account) }
+
+      it 'returns false' do
+        expect(agent_bot.system_bot?).to be false
+      end
+    end
+  end
+end