Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/controllers/platform_controller.rb

@@ -0,0 +1,37 @@
+class PlatformController < ActionController::API
+  include RequestExceptionHandler
+
+  before_action :ensure_access_token
+  before_action :set_platform_app
+  before_action :set_resource, only: [:update, :show, :destroy]
+  before_action :validate_platform_app_permissible, only: [:update, :show, :destroy]
+
+  def show; end
+
+  def update; end
+
+  def destroy; end
+
+  private
+
+  def ensure_access_token
+    token = request.headers[:api_access_token] || request.headers[:HTTP_API_ACCESS_TOKEN]
+    @access_token = AccessToken.find_by(token: token) if token.present?
+  end
+
+  def set_platform_app
+    @platform_app = @access_token.owner if @access_token && @access_token.owner.is_a?(PlatformApp)
+    render json: { error: 'Invalid access_token' }, status: :unauthorized if @platform_app.blank?
+  end
+
+  def set_resource
+    # set @resource in your controller
+    raise 'Overwrite this method your controller'
+  end
+
+  def validate_platform_app_permissible
+    return if @platform_app.platform_app_permissibles.find_by(permissible: @resource)
+
+    render json: { error: 'Non permissible resource' }, status: :unauthorized
+  end
+end