module ViewModels
  class RecipeCriteria

    SORT_COLUMNS = :created_at, :name, :rating, :total_time

    attr_writer :sort_column, :sort_direction
    attr_writer :page, :per

    def initialize(params = {})
      params ||= {}
      ([:sort_column, :sort_direction, :page, :per]).each do |attr|
        setter = "#{attr}="
        if params[attr]
          self.send(setter, params[attr])
        end
      end
    end

    def sort_column
      @sort_column ||= SORT_COLUMNS.first
      @sort_column = @sort_column.to_sym
      unless SORT_COLUMNS.include? @sort_column
        @sort_column = SORT_COLUMNS.first
      end

      @sort_column
    end

    def sort_direction
      @sort_direction ||= :asc
      @sort_direction = @sort_direction.to_sym
      unless [:asc, :desc].include? @sort_direction
        @sort_direction = :asc
      end

      @sort_direction
    end

    def page
      @page.to_i || 1
    end

    def per
      @per.to_i || 50
    end

  end
end