feat: Notification on new messages in conversation (#1204)

fixes: #895
fixes: #1118
fixes: #1075

Co-authored-by: Pranav Raj S <pranav@thoughtwoot.com>

spec/mailers/agent_notifications/conversation_notifications_mailer_spec.rb

@@ -36,4 +36,21 @@ RSpec.describe AgentNotifications::ConversationNotificationsMailer, type: :maile
       expect(mail.to).to eq([agent.email])
     end
   end
+
+  describe 'assigned_conversation_new_message' do
+    let(:mail) { described_class.assigned_conversation_new_message(conversation, agent).deliver_now }
+
+    it 'renders the subject' do
+      expect(mail.subject).to eq("#{agent.available_name}, New message in your assigned conversation [ID - #{conversation.display_id}].")
+    end
+
+    it 'renders the receiver email' do
+      expect(mail.to).to eq([agent.email])
+    end
+
+    it 'will not send email if agent is online' do
+      ::OnlineStatusTracker.update_presence(conversation.account.id, 'User', agent.id)
+      expect(mail).to eq nil
+    end
+  end
 end

spec/mailers/conversation_reply_mailer_spec.rb

@@ -14,9 +14,9 @@ RSpec.describe ConversationReplyMailer, type: :mailer do
     end
 
     context 'with summary' do
-      let(:conversation) { create(:conversation, assignee: agent) }
-      let(:message) { create(:message, conversation: conversation) }
-      let(:private_message) { create(:message, content: 'This is a private message', conversation: conversation) }
+      let(:conversation) { create(:conversation, account: account, assignee: agent) }
+      let(:message) { create(:message, account: account, conversation: conversation) }
+      let(:private_message) { create(:message, account: account, content: 'This is a private message', conversation: conversation) }
       let(:mail) { described_class.reply_with_summary(message.conversation, Time.zone.now).deliver_now }
 
       it 'renders the subject' do
@@ -31,6 +31,12 @@ RSpec.describe ConversationReplyMailer, type: :mailer do
         expect(mail.body.decoded).not_to include(private_message.content)
         expect(mail.body.decoded).to include(message.content)
       end
+
+      it 'will not send email if conversation is already viewed by contact' do
+        create(:message, message_type: 'outgoing', account: account, conversation: conversation)
+        conversation.update(contact_last_seen_at: Time.zone.now)
+        expect(mail).to eq nil
+      end
     end
 
     context 'without assignee' do
@@ -75,6 +81,12 @@ RSpec.describe ConversationReplyMailer, type: :mailer do
         expect(mail.body.decoded).not_to include(message_1.content)
         expect(mail.body.decoded).to include(message_2.content)
       end
+
+      it 'will not send email if conversation is already viewed by contact' do
+        create(:message, message_type: 'outgoing', account: account, conversation: conversation)
+        conversation.update(contact_last_seen_at: Time.zone.now)
+        expect(mail).to eq nil
+      end
     end
 
     context 'when custom domain and email is not enabled' do