# frozen_string_literal: true

require 'eac_templates/searcher'

module EacTemplates
  class FromGem
    class << self
      def include_all(searcher = nil)
        ::Gem::Specification.each { |gemspec| new(gemspec, searcher).include }
      end
    end

    TEMPLATES_DIR_SUBPATH = 'template'

    common_constructor :gemspec, :searcher, default: [nil] do
      self.searcher ||= ::EacTemplates::Searcher.default
    end

    # @return [Boolean]
    delegate :exist?, to: :path

    # @return [Pathname]
    def include
      return nil unless exist?

      searcher.included_paths << path
      path
    end

    # @return [Pathname]
    def path
      gemspec.gem_dir.to_pathname.join(TEMPLATES_DIR_SUBPATH)
    end
  end
end