[Feature] Email collect message hooks (#331)

- Add email collect hook on creating conversation
- Merge contact if it already exist

spec/services/facebook/send_reply_service_spec.rb

@@ -14,7 +14,8 @@ describe Facebook::SendReplyService do
   let!(:facebook_channel) { create(:facebook_page, account: account) }
   let!(:facebook_inbox) { create(:inbox, channel: facebook_channel, account: account) }
   let!(:contact) { create(:contact, account: account) }
-  let(:conversation) { create(:conversation, contact: contact, inbox: facebook_inbox) }
+  let(:contact_inbox) { create(:contact_inbox, contact: contact, inbox: facebook_inbox) }
+  let(:conversation) { create(:conversation, contact: contact, inbox: facebook_inbox, contact_inbox: contact_inbox) }
 
   describe '#perform' do
     context 'without reply' do
@@ -41,7 +42,6 @@ describe Facebook::SendReplyService do
 
     context 'with reply' do
       it 'if message is sent from chatwoot and is outgoing' do
-        create(:contact_inbox, contact: contact, inbox: facebook_inbox)
         create(:message, message_type: :incoming, inbox: facebook_inbox, account: account, conversation: conversation)
         create(:message, message_type: 'outgoing', inbox: facebook_inbox, account: account, conversation: conversation)
         expect(bot).to have_received(:deliver)

spec/services/message_templates/hook_execution_service_spec.rb

@@ -0,0 +1,20 @@
+require 'rails_helper'
+
+describe ::MessageTemplates::HookExecutionService do
+  context 'when it is a first message from web widget' do
+    it 'calls ::MessageTemplates::Template::EmailCollect' do
+      message = create(:message)
+      # this hook will only get executed for conversations with out any template messages
+      message.conversation.messages.template.destroy_all
+
+      email_collect_service = double
+      allow(::MessageTemplates::Template::EmailCollect).to receive(:new).and_return(email_collect_service)
+      allow(email_collect_service).to receive(:perform).and_return(true)
+
+      described_class.new(message: message).perform
+
+      expect(::MessageTemplates::Template::EmailCollect).to have_received(:new).with(conversation: message.conversation)
+      expect(email_collect_service).to have_received(:perform)
+    end
+  end
+end

spec/services/message_templates/template/email_collect_spec.rb

@@ -0,0 +1,12 @@
+require 'rails_helper'
+
+describe ::MessageTemplates::Template::EmailCollect do
+  context 'when this hook is called' do
+    let(:conversation) { create(:conversation) }
+
+    it 'creates the email collect messages' do
+      described_class.new(conversation: conversation).perform
+      expect(conversation.messages.count).to eq(3)
+    end
+  end
+end