module Fiona7
  class Initializer
    CLASSES_MAP = {
      'X_Generic'      => 'generic',
      'X_Image'        => 'image',
      'X_Container'    => 'publication'
    }

    ATTRIBUTES_MAP = {
      'X_widget_pool'  => 'linklist'
    }

    def sanity_check
      any_class_present = false
      classes_present = CLASSES_MAP.all? do |name, type|
        obj_class = RailsConnector::ObjClass.find_by_name(name)
        any_class_present ||= obj_class && obj_class.obj_type == type
      end

      classes_present && raise("Initialization has already been performed, there is not need to perform it again.")
      any_class_present && raise("Misconfiguration of obj classes detected")

      any_attribute_present = false
      attributes_present = ATTRIBUTES_MAP.all? do |name, type|
        attribute = RailsConnector::Attribute.find_by_name(name)
        any_attribute_present ||= attribute && attribute.attribute_type == type
      end

      any_class_present && raise("Misconfiguration of attributes detected")
    end

    def classes_and_attributes
      CLASSES_MAP.each do |name, type|
        Reactor::Cm::ObjClass.create(name, type)
      end

      ATTRIBUTES_MAP.each do |name, type|
        Reactor::Cm::Attribute.create(name, type)
      end
    end

    def set_valid_sub_obj_classes
      RailsConnector::ObjClass.all.each do |obj_class|
        valid_sub_obj_classes = read_valid_sub_obj_classes(obj_class)

        # empty valid_sub_obj_classes = allow all
        unless valid_sub_obj_classes.empty?
          valid_sub_obj_classes += CLASSES_MAP.keys
          cm_class = Reactor::Cm::ObjClass.get(obj_class.name)
          cm_class.set(:validSubObjClasses, valid_sub_obj_classes)
          cm_class.save!
        end
      end
    end

    def create_login_page
      Scrivito::Workspace.current = Scrivito::Workspace.find('rtc')
      Scrivito::ObjClass.create(
        name: 'Fiona7LoginPage',
        title: 'Login Page',
        attributes: [
          {name: "title", type: "string"},
          {name: "body", type: "html"}
        ]
      )
      Scrivito::Obj.create(_obj_class: 'Fiona7LoginPage', _path: '/_global/login_page', title: 'Log in')
      Scrivito::ObjClass.find('Fiona7LoginPage').update(is_active: false)
    end

    protected
    def read_valid_sub_obj_classes(obj_class)
      # TODO: upgrade reactor to get rid of this crap
      obj_class.send(:load_blob_data)
      data = obj_class.instance_variable_get('@blob_data') || {}
      data["validSubObjClasses"] || []
    end
  end
end