Rename-file-on-moving.js

// TODO: needs to be done
const renameExists = () => {

    /** Auto rename a file if the same name exists in a destination folder
     * example: file.txt, file(1).txt, file(2).txt
     */
    while (exists) {
      let filename = exists.title;
      let copyNumber = 1;
      let ext = '';
    
      // extract extantion
      let matches = filename.match(/^(.+)([.][^.]+)$/);
    
      if (matches) {
        filename = matches[1];
        ext = matches[2];
      }
    
      // extract copy number
      matches = filename.match(/^(.+)\((\d+)\)$/);
    
      if (matches) {
        filename = matches[1];
        copyNumber = parseInt(matches[2]) + 1;
      }
    
      // copyNumber = parseInt(copyNumber) + 1;
      nodeFrom.title = `${filename}(${copyNumber})${ext}`;
    
      exists = FilesTree.findOne({
        parent: nodeTo._id,
        title: nodeFrom.title,
        folder: nodeFrom.folder
      });
    }
}