function processDocument(Subject, Contents, Attachments){
 var folders = DriveApp.getFoldersByName("WebAppDocuments");
 while (folders.hasNext()) {
   var folder = folders.next();
   doc = DocumentApp.create(Subject);
   doc.appendParagraph(Contents);
   doc.appendParagraph("Attachments:")
   for(a = 0; a < Attachments.length; a++){
      try{
        doc.appendParagraph(Attachments[a].getAs(File));
      }catch(e){
        Logger.log(e);
      }
   }
   //doc.saveAndClose();
   var file_doc = DriveApp.getFileById(doc.getId());
   folder.addFile(file_doc);
   DriveApp.removeFile(file_doc);
   Logger.log("Saved file \"" + file_doc.getName() + "\" to " + folder.getName());
 }
}

function checkForEmails(){
  var found = false;

  var threads = GmailApp.search("has:attachment label:Drive");

  for (c = 0; c < threads.length; c++){
    var mails = threads[c].getMessages();
    for(i = 0; i < mails.length; i++){
      var attachments = mails[i].getAttachments();
      var subject = mails[i].getSubject();
      var contents = mails[i].getPlainBody();
      processDocument(subject, contents, attachments);
    }
  }

}