Initial commit: Add logistics and order_detail message types

- Add Logistics component with progress tracking
- Add OrderDetail component for order information
- Support data-driven steps and actions
- Add blue color scale to widget SCSS
- Fix node overflow and progress bar rendering issues
- Add English translations for dashboard components

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

spec/services/messages/send_email_notification_service_spec.rb

@@ -0,0 +1,178 @@
+require 'rails_helper'
+
+describe Messages::SendEmailNotificationService do
+  let(:account) { create(:account) }
+  let(:conversation) { create(:conversation, account: account) }
+  let(:message) { create(:message, conversation: conversation, message_type: 'outgoing') }
+  let(:service) { described_class.new(message: message) }
+
+  describe '#perform' do
+    context 'when email notification should be sent' do
+      let(:inbox) { create(:inbox, account: account, channel: create(:channel_widget, account: account, continuity_via_email: true)) }
+      let(:conversation) { create(:conversation, account: account, inbox: inbox) }
+
+      before do
+        conversation.contact.update!(email: 'test@example.com')
+        allow(Redis::Alfred).to receive(:set).and_return(true)
+        ActiveJob::Base.queue_adapter = :test
+      end
+
+      it 'enqueues ConversationReplyEmailJob' do
+        expect { service.perform }.to have_enqueued_job(ConversationReplyEmailJob).with(conversation.id, message.id).on_queue('mailers')
+      end
+
+      it 'atomically sets redis key to prevent duplicate emails' do
+        expected_key = format(Redis::Alfred::CONVERSATION_MAILER_KEY, conversation_id: conversation.id)
+
+        service.perform
+
+        expect(Redis::Alfred).to have_received(:set).with(expected_key, message.id, nx: true, ex: 1.hour.to_i)
+      end
+
+      context 'when redis key already exists' do
+        before do
+          allow(Redis::Alfred).to receive(:set).and_return(false)
+        end
+
+        it 'does not enqueue job' do
+          expect { service.perform }.not_to have_enqueued_job(ConversationReplyEmailJob)
+        end
+
+        it 'attempts atomic set once' do
+          service.perform
+
+          expect(Redis::Alfred).to have_received(:set).once
+        end
+      end
+    end
+
+    context 'when handling concurrent requests' do
+      let(:inbox) { create(:inbox, account: account, channel: create(:channel_widget, account: account, continuity_via_email: true)) }
+      let(:conversation) { create(:conversation, account: account, inbox: inbox) }
+
+      before do
+        conversation.contact.update!(email: 'test@example.com')
+      end
+
+      it 'prevents duplicate jobs under race conditions' do
+        # Create 5 threads that simultaneously try to enqueue workers for the same conversation
+        threads = Array.new(5) do
+          Thread.new do
+            msg = create(:message, conversation: conversation, message_type: 'outgoing')
+            described_class.new(message: msg).perform
+          end
+        end
+
+        threads.each(&:join)
+
+        # Only ONE job should be scheduled despite 5 concurrent attempts
+        jobs_for_conversation = ActiveJob::Base.queue_adapter.enqueued_jobs.select do |job|
+          job[:job] == ConversationReplyEmailJob && job[:args].first == conversation.id
+        end
+        expect(jobs_for_conversation.size).to eq(1)
+      end
+    end
+
+    context 'when email notification should not be sent' do
+      before do
+        ActiveJob::Base.queue_adapter = :test
+      end
+
+      context 'when message is not email notifiable' do
+        let(:message) { create(:message, conversation: conversation, message_type: 'incoming') }
+
+        it 'does not enqueue job' do
+          expect { service.perform }.not_to have_enqueued_job(ConversationReplyEmailJob)
+        end
+      end
+
+      context 'when contact has no email' do
+        let(:inbox) { create(:inbox, account: account, channel: create(:channel_widget, account: account, continuity_via_email: true)) }
+        let(:conversation) { create(:conversation, account: account, inbox: inbox) }
+
+        before do
+          conversation.contact.update!(email: nil)
+        end
+
+        it 'does not enqueue job' do
+          expect { service.perform }.not_to have_enqueued_job(ConversationReplyEmailJob)
+        end
+      end
+
+      context 'when channel does not support email notifications' do
+        let(:inbox) { create(:inbox, account: account, channel: create(:channel_sms, account: account)) }
+        let(:conversation) { create(:conversation, account: account, inbox: inbox) }
+
+        before do
+          conversation.contact.update!(email: 'test@example.com')
+        end
+
+        it 'does not enqueue job' do
+          expect { service.perform }.not_to have_enqueued_job(ConversationReplyEmailJob)
+        end
+      end
+    end
+  end
+
+  describe '#should_send_email_notification?' do
+    context 'with WebWidget channel' do
+      let(:inbox) { create(:inbox, account: account, channel: create(:channel_widget, account: account, continuity_via_email: true)) }
+      let(:conversation) { create(:conversation, account: account, inbox: inbox) }
+
+      before do
+        conversation.contact.update!(email: 'test@example.com')
+      end
+
+      it 'returns true when continuity_via_email is enabled' do
+        expect(service.send(:should_send_email_notification?)).to be true
+      end
+
+      context 'when continuity_via_email is disabled' do
+        let(:inbox) { create(:inbox, account: account, channel: create(:channel_widget, account: account, continuity_via_email: false)) }
+
+        it 'returns false' do
+          expect(service.send(:should_send_email_notification?)).to be false
+        end
+      end
+    end
+
+    context 'with API channel' do
+      let(:inbox) { create(:inbox, account: account, channel: create(:channel_api, account: account)) }
+      let(:conversation) { create(:conversation, account: account, inbox: inbox) }
+
+      before do
+        conversation.contact.update!(email: 'test@example.com')
+        allow(account).to receive(:feature_enabled?).and_return(false)
+        allow(account).to receive(:feature_enabled?).with('email_continuity_on_api_channel').and_return(true)
+      end
+
+      it 'returns true when email_continuity_on_api_channel feature is enabled' do
+        expect(service.send(:should_send_email_notification?)).to be true
+      end
+
+      context 'when email_continuity_on_api_channel feature is disabled' do
+        before do
+          allow(account).to receive(:feature_enabled?).and_return(false)
+          allow(account).to receive(:feature_enabled?).with('email_continuity_on_api_channel').and_return(false)
+        end
+
+        it 'returns false' do
+          expect(service.send(:should_send_email_notification?)).to be false
+        end
+      end
+    end
+
+    context 'with other channels' do
+      let(:inbox) { create(:inbox, account: account, channel: create(:channel_email, account: account)) }
+      let(:conversation) { create(:conversation, account: account, inbox: inbox) }
+
+      before do
+        conversation.contact.update!(email: 'test@example.com')
+      end
+
+      it 'returns false' do
+        expect(service.send(:should_send_email_notification?)).to be false
+      end
+    end
+  end
+end