spree/spree

module Spree
  module DisplayLink
    extend ActiveSupport::Concern

    included do
      belongs_to :linked_resource, polymorphic: true

      def link
        case linked_resource_type
        when 'Spree::Taxon'
          return if linked_resource&.permalink.blank?

          "/#{Spree::Config[:storefront_taxons_path]}/#{linked_resource.permalink}"
        when 'Spree::Product'
          return if linked_resource&.slug.blank?

          "/#{Spree::Config[:storefront_products_path]}/#{linked_resource.slug}"
        when 'Spree::CmsPage'
          return if linked_resource&.slug.blank?

          "/#{Spree::Config[:storefront_pages_path]}/#{linked_resource.slug}"
        when 'Spree::Linkable::Homepage'
          '/'
        when 'Spree::Linkable::Uri'
          destination
        end
      end
    end
  end
end