Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/models/custom_attribute_definition.rb

@@ -0,0 +1,67 @@
+# == Schema Information
+#
+# Table name: custom_attribute_definitions
+#
+#  id                     :bigint           not null, primary key
+#  attribute_description  :text
+#  attribute_display_name :string
+#  attribute_display_type :integer          default("text")
+#  attribute_key          :string
+#  attribute_model        :integer          default("conversation_attribute")
+#  attribute_values       :jsonb
+#  default_value          :integer
+#  regex_cue              :string
+#  regex_pattern          :string
+#  created_at             :datetime         not null
+#  updated_at             :datetime         not null
+#  account_id             :bigint
+#
+# Indexes
+#
+#  attribute_key_model_index                         (attribute_key,attribute_model,account_id) UNIQUE
+#  index_custom_attribute_definitions_on_account_id  (account_id)
+#
+class CustomAttributeDefinition < ApplicationRecord
+  STANDARD_ATTRIBUTES = {
+    :conversation => %w[status priority assignee_id inbox_id team_id display_id campaign_id labels browser_language country_code referer created_at
+                        last_activity_at],
+    :contact => %w[name email phone_number identifier country_code city created_at last_activity_at referer blocked]
+  }.freeze
+
+  scope :with_attribute_model, ->(attribute_model) { attribute_model.presence && where(attribute_model: attribute_model) }
+  validates :attribute_display_name, presence: true
+
+  validates :attribute_key,
+            presence: true,
+            uniqueness: { scope: [:account_id, :attribute_model] }
+
+  validates :attribute_display_type, presence: true
+  validates :attribute_model, presence: true
+  validate :attribute_must_not_conflict, on: :create
+
+  enum attribute_model: { conversation_attribute: 0, contact_attribute: 1 }
+  enum attribute_display_type: { text: 0, number: 1, currency: 2, percent: 3, link: 4, date: 5, list: 6, checkbox: 7 }
+
+  belongs_to :account
+  after_update :update_widget_pre_chat_custom_fields
+  after_destroy :sync_widget_pre_chat_custom_fields
+
+  private
+
+  def sync_widget_pre_chat_custom_fields
+    ::Inboxes::SyncWidgetPreChatCustomFieldsJob.perform_later(account, attribute_key)
+  end
+
+  def update_widget_pre_chat_custom_fields
+    ::Inboxes::UpdateWidgetPreChatCustomFieldsJob.perform_later(account, self)
+  end
+
+  def attribute_must_not_conflict
+    model_keys = attribute_model.to_sym == :conversation_attribute ? :conversation : :contact
+    return unless attribute_key.in?(STANDARD_ATTRIBUTES[model_keys])
+
+    errors.add(:attribute_key, I18n.t('errors.custom_attribute_definition.key_conflict'))
+  end
+end
+
+CustomAttributeDefinition.include_mod_with('Concerns::CustomAttributeDefinition')