Bundle files into Drive

gistfile1.txt

function bundleFilesIntoDrive(notification)
{
  var card = new Notification(notification).addedLabel("Bundle").card();

  try
  {
    var folder = DriveApp.getFoldersByName("Trellinator Downloads").next();
  }
  catch(e)
  {
    var folder = DriveApp.createFolder("Trellinator Downloads");
  }
  
  var bundle = findOrCreateFolderByName(card.id()+"-attachments",folder);
  
  card.attachments().each(function(att)
  {
    try
    {
      var file = Trellinator.downloadFileToGoogleDrive(att.link());
      bundle.addFile(file);
    }
    
    catch(e)
    {
      Logger.log(e);
      //Ignore errors, these files couldn't be saved
    }
  });

  card.attachLink({name: "Bundled Attachments",link: bundle.getUrl()});
}

function findOrCreateFolderByName(filename,parent)
{
  var id = getFolderByName(filename,parent.getId());

  if(!id.id)
  {
    var ret = parent.createFolder(filename);
  }

  else
  {
    var ret = DriveApp.getFolderById(id.id);
  }

  return ret;
}

/*
* ****Get File By Name***
*
*param 1: File Name 
*param 2: Parent Folder of File (optional)
*
*returns: Dictionary of file "id" and "error" message {"id": ,"error": }
*  -if there is no error, "id" returns file id and "error" returns false
*  -if there is an error, "id" returns false and "error" returns type of error as a string for user to display or log.
*/

function getFolderByName(fileName, fileInFolder)
{
  var filecount = 0;
  var dupFileArray = [];
  var folderID = "";

  var files = DriveApp.getFoldersByName(fileName);

  while(files.hasNext()){
    var file = files.next();
    dupFileArray.push(file.getId());

    filecount++;
  };

  if(filecount > 1){
    if(typeof fileInFolder === 'undefined'){
        folderID = {"id":false,"error":"More than one file with name: "+fileName+". \nTry adding the file's folder name as a reference in Argument 2 of this function."}

    }else{
     //iterate through list of files with the same name
     for(fl = 0; fl < dupFileArray.length; fl++){
       var activeFile = DriveApp.getFileById(dupFileArray[fl]);
       var folders = activeFile.getParents();
       var folder = ""
       var foldercount = 0;

       //Get the folder name for each file
       while(folders.hasNext()){
         folder = folders.next().getName();
         foldercount++;
       };

       if(folder === fileInFolder && foldercount > 1){
         folderID = {"id":false,"error":"There is more than one parent folder: "+fileInFolder+" for file "+fileName}
       };

       if(folder === fileInFolder){
           folderID = {"id":dupFileArray[fl],"error":false};

       }else{
         folderID = {"id":false,"error":"There are multiple files named: "+fileName+". \nBut none of them are in folder, "+fileInFolder}
       };
     };
   };

  }else if(filecount === 0){
      folderID = {"id":false,"error":"No file in your drive exists with name: "+fileName};

  }else{ //IF there is only 1 file with fileName
    folderID = {"id":dupFileArray[0],"error":false};
    };

  return folderID;
}