public function __construct($app, Filesystem $fs, Loader $loader)
{
$this->app = $app;
$this->fs = $fs;
$this->loader = $loader;
$path = $this->app->databasePath() . '/' . config('jables.folder');
if (!$this->fs->isWritable($path)) {
throw new \Exception($path . ' isn\' writable.');
}
$this->buildFileList();
}