Chatwoot/app/mailers/agent_notifications/conversation_notifications_mailer.rb

class AgentNotifications::ConversationNotificationsMailer < ApplicationMailer
  def conversation_creation(conversation, agent)
    return unless smtp_config_set_or_development?

    @agent = agent
    @conversation = conversation
    subject = "#{@agent.available_name}, A new conversation [ID - #{@conversation.display_id}] has been created in #{@conversation.inbox&.name}."
    @action_url = app_account_conversation_url(account_id: @conversation.account_id, id: @conversation.display_id)
    send_mail_with_liquid(to: @agent.email, subject: subject) and return
  end

  def conversation_assignment(conversation, agent)
    return unless smtp_config_set_or_development?

    @agent = agent
    @conversation = conversation
    subject = "#{@agent.available_name}, A new conversation [ID - #{@conversation.display_id}] has been assigned to you."
    @action_url = app_account_conversation_url(account_id: @conversation.account_id, id: @conversation.display_id)
    send_mail_with_liquid(to: @agent.email, subject: subject) and return
  end

  def assigned_conversation_new_message(conversation, agent)
    return unless smtp_config_set_or_development?
    # Don't spam with email notifications if agent is online
    return if ::OnlineStatusTracker.get_presence(conversation.account.id, 'User', agent.id)

    @agent = agent
    @conversation = conversation
    subject = "#{@agent.available_name}, New message in your assigned conversation [ID - #{@conversation.display_id}]."
    @action_url = app_account_conversation_url(account_id: @conversation.account_id, id: @conversation.display_id)
    send_mail_with_liquid(to: @agent.email, subject: subject) and return
  end

  private

  def liquid_droppables
    super.merge({
                  user: @agent,
                  conversation: @conversation,
                  inbox: @conversation.inbox
                })
  end
end