List all files in a folder (Google Apps Script)

list-files-in-folder.js

function listFilesInFolder() {
  var folder = DocsList.getFolder("Maudesley Debates");
  var contents = folder.getFiles();
  
  var file;
  var data;
  
  var sheet = SpreadsheetApp.getActiveSheet();
  sheet.clear();
  
  sheet.appendRow(["Name", "Date", "Size", "URL", "Download", "Description", "Type"]);

  for (var i = 0; i < contents.length; i++) {
    file = contents[i];
    
    if (file.getFileType() == "SPREADSHEET") {
      continue;
    }
        
    data = [ 
      file.getName(),
      file.getDateCreated(),
      file.getSize(),
      file.getUrl(),
      "https://docs.google.com/uc?export=download&confirm=no_antivirus&id=" + file.getId(),
      file.getDescription(),
      "audio/mp3"
    ];
      
    sheet.appendRow(data);
  }
};

I want my firebase storage and google drive synced with each other like If I upload a file to my drive it should go to firebase storage too and if I upload a file on storage it should come to my drive too.
I also want to trigger my function when I upload file on google drive or firebase storage.
Is it possible guys?
I am able to upload the folder and the file to firebase storage but its hard coded.
I want a trigger so, when drive or firebase storage changes it should trigger the function and function should take the files name either they are on drive or firebase storage and then upload it to drive or firebase either.