<?php declare(strict_types = 1);

namespace PHPStan\PhpDocParser\Ast\ConstExpr;

use PHPStan\PhpDocParser\Ast\NodeAttributes;
use function sprintf;
use function str_replace;
use function strlen;
use function substr;

class DoctrineConstExprStringNode extends ConstExprStringNode
{

	use NodeAttributes;

	/** @var string */
	public $value;

	public function __construct(string $value)
	{
		parent::__construct($value);
		$this->value = $value;
	}

	public function __toString(): string
	{
		return self::escape($this->value);
	}

	public static function unescape(string $value): string
	{
		// from https://github.com/doctrine/annotations/blob/a9ec7af212302a75d1f92fa65d3abfbd16245a2a/lib/Doctrine/Common/Annotations/DocLexer.php#L103-L107
		return str_replace('""', '"', substr($value, 1, strlen($value) - 2));
	}

	private static function escape(string $value): string
	{
		// from https://github.com/phpstan/phpdoc-parser/issues/205#issuecomment-1662323656
		return sprintf('"%s"', str_replace('"', '""', $value));
	}

}
