function fileName = findFileByCode(folderPath, code)
% FINDFILEBYCODE Searches for a file in a folder structure by a given code.
%   fileName = findFileByCode(folderPath, code) searches recursively in
%   folderPath for a file containing 'code' in its name and returns the
%   full file name if found.
%
%   Inputs:
%       folderPath - The root directory to search in
%       code       - The unique code to search for in file names
%
%   Output:
%       fileName   - The full file name if found, empty if not found

    % Initialize output
    fileName = '';
    
    % Get list of all files and folders in the folderPath
    files = dir(folderPath);
    
    % Iterate through the list
    for i = 1:length(files)
        % Skip '.' and '..'
        if files(i).isdir
            if ~startsWith(files(i).name, '.') % Avoid hidden folders
                % Recursive search in subdirectories
                subFolder = fullfile(folderPath, files(i).name);
                fileName = findFileByCode(subFolder, code);
                if ~isempty(fileName)
                    return; % Stop searching if found
                end
            end
        else
            % Check if the file name contains the code
            if contains(files(i).name, code)
                fileName = fullfile(folderPath, files(i).name);
                return;
            end
        end
    end
end