savytskyi/motion-realm

module MotionRealm
  def self.included(base)
    base.extend(ClassMethods)
  end

  module ClassMethods
    def create(opts={})
      # # Does not work correct in current version of RM or Realm:
      # self.alloc.initWithValue opts

      object = self.new
      opts.each do |key, value|
        method_name = "set" + key.to_s.capitalize
        method_name = key.to_s + "="

        object.send(method_name, value)
      end

      object

    end

    def count
      all.count
    end

    def first
      all.first
    end

    def last
      all.last
    end

    def defaultPropertyValues
      # set all properties to nil
      values = {}

      self.schema.properties.each do |property|
        property_name = property.name

        values[property_name] = if default_values[property_name]
          default_values[property_name]
        elsif property.bool?
          false
        elsif property.number? || property.mixed?
          0
        elsif property.array?
          []
        else
          nil
        end
      end

      values
    end

    def default_values
      {}
    end

    def indexedProperties
      indexes
    end

    def indexes
      []
    end

    def primaryKey
      primary_key
    end

    def primary_key
      nil
    end

    def where(query)
      self.objectsWhere(query)
    end

    def create_or_update(object, realm=nil)
      if realm.nil?
        realm = RLMRealm.default
      end

      self.createOrUpdateInRealm realm, withValue: object
    end

    def delete_all
      RLMRealm.write do |realm|
        self.all.each { |object| realm.delete(object) }
      end
    end
  end

  def delete
    RLMRealm.write do |realm|
      realm.delete(self)
    end
  end
end