	/**
	 * Compiler Placeholder
	 *
	 * @var    Placeholder
	 * @since 3.2.0
	 **/
	protected Placeholder $placeholder;

	/**
	 * Constructor.
	 *
	 * @param Placeholder|null        $placeholder  The compiler placeholder object.
	 *
	 * @since 3.2.0
	 */
	public function __construct(?Placeholder $placeholder = null)
	{
		$this->placeholder = $placeholder ?: Compiler::_('Placeholder');
	}

	/**
	 * Set a string as bsae64 (basic)
	 *
	 * @param   string  $script  The code string
	 *
	 * @return  string
	 * @since 3.2.0
	 */
	public function set(string $script): string
	{
		if (\strpos($script, 'LOCK'.'BASE64((((') !== false)
		{
			// get the strings
			$values = GetHelper::allBetween(
				$script, 'LOCK'.'BASE64((((', '))))'
			);
			$locker = [];
			// convert them
			foreach ($values as $value)
			{
				$locker['LOCK'.'BASE64((((' . $value . '))))']
					= "base64_decode( preg_replace('/\s+/', ''," .
					PHP_EOL . Indent::_(2) . "'" .
					wordwrap(
						base64_encode((string) $value), 64, PHP_EOL . Indent::_(2), true
					) .
					"'))";
			}

			// update the script
			return $this->placeholder->update($script, $locker);
		}

		return $script;
	}