module Carload
  module ApplicationHelper
    def needs_upload? model_name, attribute_name
      case Carload.upload_solution
      when :carrierwave
        model_class = model_name.to_s.classify.constantize
        not model_class.instance_methods.map(&:to_s).select { |x| x =~ /#{attribute_name}_url/ }.empty?
      end
    end

    def polymorphic? attribute_name
      Dashboard.model(@model_name).associated_models.each_value do |associated_model|
        return associated_model[:name] if attribute_name =~ /#{associated_model[:name]}/ and associated_model[:polymorphic]
      end
      false
    end

    def image? attribute_name
      attribute_name.to_s =~ /image|logo|img/
    end

    def id_or_ids associated_model
      case associated_model[:association_type]
      when :has_many
        "#{associated_model[:name]}_ids"
      else
        "#{associated_model[:name]}_id"
      end
    end
  end
end