class Converter
  module JsConversion
    def process_javascript_assets
      log_status 'Processing javascripts...'
      save_to = @save_to[:js]
      contents = {}
      read_files('js', bootstrap_js_files).each do |name, file|
        contents[name] = file
        save_file("#{save_to}/#{name}", file)
      end
      log_processed "#{bootstrap_js_files * ' '}"

      log_status 'Updating javascript manifest'
      manifest = ''
      bootstrap_js_files.each do |name|
        name = name.gsub(/\.js$/, '')
        manifest << "//= require ./bootstrap/#{name}\n"
      end
      dist_js = read_files('dist/js', %w(bootstrap.js bootstrap.min.js))
      {
          'assets/javascripts/bootstrap-sprockets.js' => manifest,
          'assets/javascripts/bootstrap.js'           => dist_js['bootstrap.js'],
          'assets/javascripts/bootstrap.min.js'       => dist_js['bootstrap.min.js'],
      }.each do |path, content|
        save_file path, content
        log_processed path
      end
    end

    def bootstrap_js_files
      @bootstrap_js_files ||= begin
        files = get_paths_by_type('js', /\.js$/).reject { |path| path =~ %r(^tests/) }
        files.sort_by { |f|
          case f
            # tooltip depends on popover and must be loaded earlier
            when /tooltip/ then
              1
            when /popover/ then
              2
            else
              0
          end
        }
      end
    end
  end
end