Rename file after upload

wpdm_after_upload_file.php

<?php

/* Rename file */

add_action("wpdm_after_upload_file", function ($file_path) {
    $dir = dirname($file_path);
    $file = basename($file_path);
    $ext = \WPDM\libs\FileSystem::fileExt($file);
    $new_name = str_replace(".{$ext}", "-".uniqid().".{$ext}", $file);
    $new_path = $dir.'/'.$new_name;
    rename($file_path, $new_path);
    echo "|||".$new_name."|||";
    exit;
});

/* Organizing files in to sub-dirs by year */

add_action("wpdm_after_upload_file", function($path){
    $filename = basename($path);
    $upload_dir = dirname($path);
    $year = date("Y");
    $new_path = $upload_dir."/".$year."/".$filename;
    $overwrite = (int)get_option('__wpdm_overwrrite_file',0);
    if(file_exists($new_path) && $overwrite){
        @unlink($new_path);
    }
    if(file_exists($new_path) && !$overwrite){
        $filename = time().'wpdm_'.$filename;
        $new_path = $upload_dir."/".$year."/".$filename;
    }
    if(!file_exists($upload_dir."/".$year."/"))
        mkdir($upload_dir."/".$year."/");
    rename($path, $new_path);
    die("|||{$year}/{$filename}|||");
});