module FileHelper

  def file_params(file_path)
    {
      size: File.open(file_path).size,
      name: File.basename(file_path)
    }
  end

  def declare_file(api_path, params)
    post(api_path, params)
  end

  def post_file(url, params, file_path)
    params['Filename'] = File.basename(file_path)
    params['file'] = Faraday::UploadIO.new(file_path, params['content-type'])
    response = upload_connection.post(url, params)
    if [302, 303].include? response.status #success if it is a redirect
      response.headers['Location']
    else
      raise 'FailedFileUpload'
    end
  end

  def confirm_file_upload(url)
    uri = URI(url)
    post(uri.path, CGI::parse(uri.query))
  end

  def upload_connection
    Faraday.new do |f|
      f.request :multipart
      f.request :url_encoded
      f.adapter :net_http
    end
  end
end