sitepress/sitepress

module Sitepress
  # Flattens a tree of Sitepress::Node and Sitepress:Resource classes into a collection of
  # resources that can be quickly globbed, queried, or accessed.
  class ResourceIndexer
    extend Forwardable
    def_delegators :resources, :each, :size, :index, :[], :last, :length, :fetch, :count, :at

    include Enumerable

    # Used by `#glob` to determine the full path when
    # given a relative glob pattern.
    attr_reader :root_path

    def initialize(node: , root_path: ".")
      @node = node
      @root_path = Pathname.new(root_path)
    end

    def glob(pattern)
      paths = Dir.glob root_path.join(pattern)
      resources.select { |r| paths.include? r.asset.path.to_s }
    end

    def get(request_path)
      @node.get(request_path)
    end

    private
    def resources
      @node.resources.flatten
    end
  end
end