require "pathname"

module Licensed
  class Configuration < Hash
    attr_accessor :ui

    def initialize
      super()
      update config_path.exist? ? YAML.load_file(config_path) : {}

      self["sources"] ||= {}
      self["reviewed"] ||= {}
      self["ignored"] ||= {}
      self["whitelist"] ||= []

      @ui = Licensed::UI::Shell.new
    end

    def path
      Pathname.new("vendor/licenses")
    end

    def config_path
      path.join("config.yml")
    end

    def pwd
      Pathname.new(Dir.pwd)
    end

    def sources
      @sources ||= [
        Source::Bundler.new(self),
        Source::Bower.new(self),
        Source::NPM.new(self)
      ].select(&:enabled?)
    end

    def enabled?(source_type)
      self["sources"].fetch(source_type, true)
    end

    # Is the given dependency approved?
    def reviewed?(dependency)
      Array(self["reviewed"][dependency["type"]]).include?(dependency["name"])
    end

    # Is the given dependency ignored?
    def ignored?(dependency)
      Array(self["ignored"][dependency["type"]]).include?(dependency["name"])
    end

    # Is the license of the dependency whitelisted?
    def whitelisted?(dependency)
      Array(self["whitelist"]).include?(dependency["license"])
    end

    def ignore(dependency)
      (self["ignored"][dependency["type"]] ||= []) << dependency["name"]
    end

    def review(dependency)
      (self["reviewed"][dependency["type"]] ||= []) << dependency["name"]
    end

    def whitelist(license)
      self["whitelist"] << license
    end
  end
end