Feature: Conversation creation email notifications (#576)

* Clean up the mailers

* Disable assignment mailer if setting is turned off

* Email notifications on conversation create

* Specs

app/dispatchers/async_dispatcher.rb

@@ -5,7 +5,7 @@ class AsyncDispatcher < BaseDispatcher
   end
 
   def listeners
-    listeners = [ReportingListener.instance, WebhookListener.instance]
+    listeners = [EmailNotificationListener.instance, ReportingListener.instance, WebhookListener.instance]
     listeners << SubscriptionListener.instance if ENV['BILLING_ENABLED']
     listeners
   end

app/listeners/email_notification_listener.rb

@@ -0,0 +1,10 @@
+class EmailNotificationListener < BaseListener
+  def conversation_created(event)
+    conversation, _account, _timestamp = extract_conversation_and_account(event)
+    conversation.inbox.members.each do |agent|
+      next unless agent.notification_settings.find_by(account_id: conversation.account_id).conversation_creation?
+
+      AgentNotifications::ConversationNotificationsMailer.conversation_created(conversation, agent).deliver_later
+    end
+  end
+end

app/mailers/agent_notifications/conversation_notifications_mailer.rb

@@ -0,0 +1,21 @@
+class AgentNotifications::ConversationNotificationsMailer < ApplicationMailer
+  default from: ENV.fetch('MAILER_SENDER_EMAIL', 'accounts@chatwoot.com')
+  layout 'mailer'
+
+  def conversation_created(conversation, agent)
+    return unless smtp_config_set_or_development?
+
+    @agent = agent
+    @conversation = conversation
+    subject = "#{@agent.name}, A new conversation [ID - #{@conversation.display_id}] has been created in #{@conversation.inbox&.name}."
+    mail(to: @agent.email, subject: subject)
+  end
+
+  def conversation_assigned(conversation, agent)
+    return unless smtp_config_set_or_development?
+
+    @agent = agent
+    @conversation = conversation
+    mail(to: @agent.email, subject: "#{@agent.name}, A new conversation [ID - #{@conversation.display_id}] has been assigned to you.")
+  end
+end

app/mailers/application_mailer.rb

@@ -1,6 +1,7 @@
 class ApplicationMailer < ActionMailer::Base
   default from: ENV.fetch('MAILER_SENDER_EMAIL', 'accounts@chatwoot.com')
   layout 'mailer'
+  append_view_path Rails.root.join('app/views/mailers')
 
   # helpers
   helper :frontend_urls

app/mailers/assignment_mailer.rb

@@ -1,12 +0,0 @@
-class AssignmentMailer < ApplicationMailer
-  default from: ENV.fetch('MAILER_SENDER_EMAIL', 'accounts@chatwoot.com')
-  layout 'mailer'
-
-  def conversation_assigned(conversation, agent)
-    return unless smtp_config_set_or_development?
-
-    @agent = agent
-    @conversation = conversation
-    mail(to: @agent.email, subject: "#{@agent.name}, A new conversation [ID - #{@conversation.display_id}] has been assigned to you.")
-  end
-end

app/mailers/conversation_reply_mailer.rb

@@ -1,8 +1,8 @@
-class ConversationMailer < ApplicationMailer
+class ConversationReplyMailer < ApplicationMailer
   default from: ENV.fetch('MAILER_SENDER_EMAIL', 'accounts@chatwoot.com')
   layout 'mailer'
 
-  def new_message(conversation, message_queued_time)
+  def reply_with_summary(conversation, message_queued_time)
     return unless smtp_config_set_or_development?
 
     @conversation = conversation

app/models/conversation.rb

@@ -112,8 +112,11 @@ class Conversation < ApplicationRecord
 
   def send_email_notification_to_assignee
     return if self_assign?(assignee_id)
+    return unless saved_change_to_assignee_id?
+    return if assignee_id.blank?
+    return if assignee.notification_settings.find_by(account_id: account_id).not_conversation_assignment?
 
-    AssignmentMailer.conversation_assigned(self, assignee).deliver_later if saved_change_to_assignee_id? && assignee_id.present?
+    AgentNotifications::ConversationNotificationsMailer.conversation_assigned(self, assignee).deliver_later
   end
 
   def self_assign?(assignee_id)
@@ -156,8 +159,6 @@ class Conversation < ApplicationRecord
   end
 
   def run_round_robin
-    # return unless conversation.account.has_feature?(round_robin)
-    # return unless conversation.account.round_robin_enabled?
     return unless inbox.enable_auto_assignment
     return if assignee
 

app/models/message.rb

@@ -133,7 +133,7 @@ class Message < ApplicationRecord
 
       # Since this is live chat, send the email after few minutes so the only one email with
       # last few messages coupled together is sent rather than email for each message
-      ConversationEmailWorker.perform_in(2.minutes, conversation.id, Time.zone.now)
+      ConversationReplyEmailWorker.perform_in(2.minutes, conversation.id, Time.zone.now)
     end
   end
 end

app/views/mailers/agent_notifications/conversation_notifications_mailer/conversation_created.html.erb

@@ -0,0 +1,5 @@
+<p>Hi <%= @agent.name %>,</p>
+
+<p>Time to save the world. A new conversation has been created in <%= @conversation.inbox.name %></p>
+
+<p>Click <%= link_to 'here', app_conversation_url(id: @conversation.display_id) %> to get cracking. </p>

app/workers/conversation_reply_email_worker.rb

@@ -1,4 +1,4 @@
-class ConversationEmailWorker
+class ConversationReplyEmailWorker
   include Sidekiq::Worker
   sidekiq_options queue: :mailers
 
@@ -6,7 +6,7 @@ class ConversationEmailWorker
     @conversation = Conversation.find(conversation_id)
 
     # send the email
-    ConversationMailer.new_message(@conversation, queued_time).deliver_later
+    ConversationReplyMailer.reply_with_summary(@conversation, queued_time).deliver_later
 
     # delete the redis set from the first new message on the conversation
     conversation_mail_key = Redis::Alfred::CONVERSATION_MAILER_KEY % @conversation.id