class PluginRepositoryScanner
  cattr_accessor :verbose
  cattr_accessor :last_plugin_found
  
  @@verbose = false
  @@last_plugin_found = nil
  
  def self.scan_all(uris)
    uris.each { |uri| self.scan_uri(uri) }
  end
  
  def self.scan_uri(uri, logger = nil)
    RemoteResources.repository_list(uri).each do |plugin|
      logger.info "* Found plugin #{plugin}" unless logger.nil?
      self.verbose_print("* Found plugin #{plugin}")
      self.last_plugin_found = plugin
      plugin_root = StringUtilities.normalise_url(uri) + plugin
      Plugin.create(:name => plugin, :root => plugin_root, :auto_updatable => true)
    end
    @@last_plugin_found = nil
  end
  
  def self.valid_plugin_link?(plugin_link)
    return false if plugin_link.innerHTML == '..'
    return false if (plugin_link.innerHTML =~ /^Subversion/ and plugin_link.attributes['href'] =~ /tigris.org/)
    return true
  end
  
  def self.verbose_print(message)
    return unless @@verbose
    puts(message)
  end
end