module Adminpanel
  module Base
    extend ActiveSupport::Concern
    #instance methods
    # static(class) methods
    module ClassMethods

      def mount_images(relation)
        has_many relation, :dependent => :destroy
        accepts_nested_attributes_for relation, :allow_destroy => true
      end

      def form_attributes
        [{
          'name' => {
            'type' => 'text_field',
            'label' => 'name'
          }
        }]
      end

      def display_name
        'please overwrite self.display_name'
      end

      def get_attribute_label(field)
        form_attributes.each do |attribute|
          attribute.each do |name, properties|
            if name == field
              return properties["label"]
            end
          end
        end
        return "field #{field} 'label' property not found :("
      end

      def get_attribute_placeholder(field)
        form_attributes.each do |attribute|
          attribute.each do |name, properties|
            if name == field
              return properties['placeholder']
            end
          end
        end
        return "field #{field} 'placeholder' property not found :("
      end

      def display_attributes(type)
        display_attributes = []
        form_attributes.each do |attribute|
          attribute.each do |name, properties|
            if properties['show'].nil? ||
              properties['show'] == 'true' ||
              properties['show'] == type
              display_attributes << attribute
            end
          end
        end

        return display_attributes
      end

      def has_images?
        form_attributes.each do |fields|
        fields.each do |attribute, properties|
          if properties['type'] == 'adminpanel_file_field'
            return true
          end
        end
        end
        return false
      end

      def get_image_relationship
        form_attributes.each do |fields|
        fields.each do |attribute, properties|
          if properties['type'] == 'adminpanel_file_field'
            return attribute
          end
        end
        end
        return false
      end

      def belongs_to_relationships
        belongs_to_classes = []
        form_attributes.each do |fields|
        fields.each do |attribute, properties|
          if properties['type'] == 'belongs_to'
            belongs_to_classes << properties['model'].classify.constantize
          end
        end
        end
        return belongs_to_classes
      end

      def has_many_relationships
        has_many_classes = []
        form_attributes.each do |fields|
        fields.each do |attribute, properties|
          if properties['type'] == 'has_many'
            has_many_classes << properties['model'].classify.constantize
          end
        end
        end
        return has_many_classes
      end

      def icon
        'truck'
      end

      def gallery_children
        nil
      end

      def routes_options
        { path: display_name.pluralize(I18n.default_locale).downcase }
      end

      def has_route?(route)
        if (!exlude?(route)) && include_route(route)
          true
        else
          false
        end
      end

    private
      def exlude?(route)
        if routes_options[:except].nil?
          false
        elsif routes_options[:except].include?(route)
          true
        else
          false
        end
      end

      def include_route(route)
        if routes_options[:only].nil? || routes_options[:only].include?(route)
          true
        else
          false
        end
      end
    end
  end
end