require 'digest/sha1'

class FilesController < ApplicationController
  defined?($upr) or before_filter do
    # grab the backend in case we forget to set it (or if we're using DRb)
    defined?($upr) or ObjectSpace.each_object(Upr::InputWrapper) do |x|
      $upr ||= x.backend
    end
  end

  def index
  end

  def status
    tmp = $upr.read(params[:upload_id]).inspect
    render :text => "#{Rack::Utils.escape_html(tmp)}\n"
  end

  def progress
    render :update do |page|
      status = $upr.read(params[:upload_id]) and
         page.upload_progress.update(status.length, status.seen)
    end
  end

  def upload
    file = params[:data]
    digest = Digest::SHA1.new
    if buf = file.read(16384)
      begin
        digest.update(buf)
      end while file.read(16384, buf)
    end
    size = file.stat.size
    File.unlink(file.path)
    render :text => "sha1: #{digest.hexdigest}<br />" \
                    "size: #{size}<br />" \
                    '<script type="text/javascript">' \
                    'window.parent.UploadProgress.finish();</script>'
  end
end