<?php

namespace Dotenv\Loader;

use Dotenv\Parser\Value;
use Dotenv\Repository\RepositoryInterface;
use Dotenv\Util\Regex;
use Dotenv\Util\Str;
use PhpOption\Option;

final class Resolver
{
    /**
     * This class is a singleton.
     *
     * @codeCoverageIgnore
     *
     * @return void
     */
    private function __construct()
    {
        //
    }

    /**
     * Resolve the nested variables in the given value.
     *
     * Replaces ${varname} patterns in the allowed positions in the variable
     * value by an existing environment variable.
     *
     * @param \Dotenv\Repository\RepositoryInterface $repository
     * @param \Dotenv\Parser\Value                   $value
     *
     * @return string
     */
    public static function resolve(RepositoryInterface $repository, Value $value)
    {
        return \array_reduce($value->getVars(), static function (string $s, int $i) use ($repository) {
            return Str::substr($s, 0, $i).self::resolveVariable($repository, Str::substr($s, $i));
        }, $value->getChars());
    }

    /**
     * Resolve a single nested variable.
     *
     * @param \Dotenv\Repository\RepositoryInterface $repository
     * @param string                                 $str
     *
     * @return string
     */
    private static function resolveVariable(RepositoryInterface $repository, string $str)
    {
        return Regex::replaceCallback(
            '/\A\${([a-zA-Z0-9_.]+)}/',
            static function (array $matches) use ($repository) {
                return Option::fromValue($repository->get($matches[1]))
                    ->getOrElse($matches[0]);
            },
            $str,
            1
        )->success()->getOrElse($str);
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NTE4MDkzODYxMDY1Mzk5NiA4MzAxNzIyMjQxNzkyNTA2IDIzODgwNzUzNjE0MzE1OTk=