module SoManyDevices
  module DownloadsHelper
    TIMEOUT = 10
    PATH = "#{Dir.pwd}/tmp/downloads"

    def downloads
      Dir["#{PATH}/*"]
    end

    def download
      downloads.first
    end

    def download_content
      wait_for_download
      File.read(download)
    end

    def wait_for_download
      Timeout.timeout(TIMEOUT) do
        sleep 0.1 until downloaded?
      end
    end

    def downloaded?
      !downloading? && downloads.any?
    end

    def downloading?
      downloads.grep(/\.crdownload$/).any?
    end

    def clear_downloads
      FileUtils.rm_f(downloads)
    end
  end
end