jackross/threequel

module Threequel
  class ConfigLoader
    def initialize(folder_path)
      @folder_path = folder_path
    end

    def dependency_tree
      @dependency_tree ||= {}.tap{|h| scripts.each{|k, v| h[k] = v[:dependencies]}}
    end

    def sorter
      @sorter ||= Sorter.new(dependency_tree)
    end

    def scripts
      config[:scripts]
    end

    def script_chains
      @script_chains ||= sorter.chains
    end

    def tsorted_scripts
      @tsorted_scripts ||= sorter.tsorted
    end

    def config
      @config ||= YAML.load_file(File.join(Rails.root, "db", "sql", @folder_path, "config.yml")).with_indifferent_access
    end
  end
end