Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/models/concerns/activity_message_handler.rb

@@ -0,0 +1,130 @@
+module ActivityMessageHandler
+  extend ActiveSupport::Concern
+
+  include PriorityActivityMessageHandler
+  include LabelActivityMessageHandler
+  include SlaActivityMessageHandler
+  include TeamActivityMessageHandler
+
+  private
+
+  def create_activity
+    user_name = determine_user_name
+
+    handle_status_change(user_name)
+    handle_priority_change(user_name)
+    handle_label_change(user_name)
+    handle_sla_policy_change(user_name)
+  end
+
+  def determine_user_name
+    Current.user&.name
+  end
+
+  def handle_status_change(user_name)
+    return unless saved_change_to_status?
+
+    status_change_activity(user_name)
+  end
+
+  def handle_priority_change(user_name)
+    return unless saved_change_to_priority?
+
+    priority_change_activity(user_name)
+  end
+
+  def handle_label_change(user_name)
+    return unless saved_change_to_label_list?
+
+    create_label_change(activity_message_owner(user_name))
+  end
+
+  def handle_sla_policy_change(user_name)
+    return unless saved_change_to_sla_policy_id?
+
+    sla_change_type = determine_sla_change_type
+    create_sla_change_activity(sla_change_type, activity_message_owner(user_name))
+  end
+
+  def status_change_activity(user_name)
+    content = if Current.executed_by.present?
+                automation_status_change_activity_content
+              else
+                user_status_change_activity_content(user_name)
+              end
+
+    ::Conversations::ActivityMessageJob.perform_later(self, activity_message_params(content)) if content
+  end
+
+  def auto_resolve_message_key(minutes)
+    if minutes >= 1440 && (minutes % 1440).zero?
+      { key: 'auto_resolved_days', count: minutes / 1440 }
+    elsif minutes >= 60 && (minutes % 60).zero?
+      { key: 'auto_resolved_hours', count: minutes / 60 }
+    else
+      { key: 'auto_resolved_minutes', count: minutes }
+    end
+  end
+
+  def user_status_change_activity_content(user_name)
+    if user_name
+      I18n.t("conversations.activity.status.#{status}", user_name: user_name)
+    elsif Current.contact.present? && resolved?
+      I18n.t('conversations.activity.status.contact_resolved', contact_name: Current.contact.name.capitalize)
+    elsif resolved?
+      message_data = auto_resolve_message_key(auto_resolve_after || 0)
+      I18n.t("conversations.activity.status.#{message_data[:key]}", count: message_data[:count])
+    end
+  end
+
+  def automation_status_change_activity_content
+    if Current.executed_by.instance_of?(AutomationRule)
+      I18n.t("conversations.activity.status.#{status}", user_name: I18n.t('automation.system_name'))
+    elsif Current.executed_by.instance_of?(Contact)
+      Current.executed_by = nil
+      I18n.t('conversations.activity.status.system_auto_open')
+    end
+  end
+
+  def activity_message_params(content)
+    { account_id: account_id, inbox_id: inbox_id, message_type: :activity, content: content }
+  end
+
+  def create_muted_message
+    create_mute_change_activity('muted')
+  end
+
+  def create_unmuted_message
+    create_mute_change_activity('unmuted')
+  end
+
+  def create_mute_change_activity(change_type)
+    return unless Current.user
+
+    content = I18n.t("conversations.activity.#{change_type}", user_name: Current.user.name)
+    ::Conversations::ActivityMessageJob.perform_later(self, activity_message_params(content)) if content
+  end
+
+  def generate_assignee_change_activity_content(user_name)
+    params = { assignee_name: assignee&.name || '', user_name: user_name }
+    key = assignee_id ? 'assigned' : 'removed'
+    key = 'self_assigned' if self_assign? assignee_id
+    I18n.t("conversations.activity.assignee.#{key}", **params)
+  end
+
+  def create_assignee_change_activity(user_name)
+    user_name = activity_message_owner(user_name)
+
+    return unless user_name
+
+    content = generate_assignee_change_activity_content(user_name)
+    ::Conversations::ActivityMessageJob.perform_later(self, activity_message_params(content)) if content
+  end
+
+  def activity_message_owner(user_name)
+    user_name = I18n.t('automation.system_name') if !user_name && Current.executed_by.present?
+    user_name
+  end
+end
+
+ActivityMessageHandler.prepend_mod_with('ActivityMessageHandler')