#GET request
get '/sample-42-how-to-download-document-with-annotations-using-groupdocs' do
  haml :sample42
end

#POST request
post '/sample-42-how-to-download-document-with-annotations-using-groupdocs' do
  #Set variables
  set :client_id, params[:clientId]
  set :private_key, params[:privateKey]
  set :file_id, params[:fileId]
  set :base_path, params[:basePath]

  begin
    #Check required variables
    raise 'Please enter all required parameters' if settings.client_id.empty? or settings.private_key.empty?

    #Prepare base path
    if settings.base_path.empty?
      base_path = 'https://api.groupdocs.com'
    elsif settings.base_path.match('/v2.0')
      base_path = settings.base_path.split('/v2.0')[0]
    else
      base_path = settings.base_path
    end

    #Configure your access to API server
    GroupDocs.configure do |groupdocs|
      groupdocs.client_id = settings.client_id
      groupdocs.private_key = settings.private_key
      #Optionally specify API server and version
      groupdocs.api_server = base_path # default is 'https://api.groupdocs.com'

    end

    document = GroupDocs::Storage::File.new(:guid => settings.file_id).to_document

    #Check, has document the annotations?
    raise 'Your document has no annotations' if document.annotations!.empty?

    #Create Hash with the options for job. :status=> -1 means the Draft status of the job
    options = {:actions => [:import_annotations], :name => 'sample'}

    #Create Job with provided options with Draft status (Sheduled job)
    job = GroupDocs::Job.create!(options)

    #Add the documents to previously created Job
    job.add_document!(document, {:check_ownership => false})


    #Update the Job with new status. :status => '0' mean Active status of the job (Start the job)
    id = job.update!({:status => '0'})

    i = 1

    while i<5 do
      sleep(5)
      job = GroupDocs::Job.get!(id[:job_id])
      break if job.status == :archived
      i  = i + 1
    end

    #Get the document into Pdf format
    file = job.documents!()

    document = file[:inputs]

    #Set iframe with document GUID or raise an error
    if document
      #Add the signature in url
      iframe = "/document-annotation2/embed/#{document[0].guid}"
      # Construct result string
      url = GroupDocs::Api::Request.new(:path => iframe).prepare_and_sign_url
      #Generate iframe URL
      case base_path
        when 'https://stage-api-groupdocs.dynabic.com'
          iframe = "https://stage-api-groupdocs.dynabic.com#{url}"
        when 'https://dev-api-groupdocs.dynabic.com'
          iframe = "https://dev-apps.groupdocs.com#{url}"
        else
          iframe = "https://apps.groupdocs.com#{url}"
      end

      iframe = "<iframe width='100%' height='600' id='downloadframe' frameborder='0' src='#{iframe}'></iframe>"

      path = "#{File.dirname(__FILE__)}/../public/downloads"
      #Remove all files from download directory or create folder if it not there
      if File.directory?(path)
        Dir.foreach(path) { |f| fn = File.join(path, f); File.delete(fn) if f != '.' && f != '..' }
      else
        Dir::mkdir(path)
      end

      GroupDocs::User.download!(path, document[0].outputs[0].name, document[0].outputs[0].guid)
      message = "<span style=\"color:green\">File with annotations was downloaded to server's local folder. You can check them <a href=\"/downloads/#{document[0].outputs[0].name}\" download>here</a></span>"
    else
      raise 'File was not converted'
    end
  rescue Exception => e
    err = e.message
  end

  #Set variables for template
  haml :sample42, :locals => {:userId => settings.client_id, :privateKey => settings.private_key, :err => err, :iframe => iframe, :message => message}
end