<?php

namespace Dotenv\Util;

use GrahamCampbell\ResultType\Error;
use GrahamCampbell\ResultType\Success;

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

    /**
     * Perform a preg match, wrapping up the result.
     *
     * @param string $pattern
     * @param string $subject
     *
     * @return \GrahamCampbell\ResultType\Result<bool,string>
     */
    public static function matches(string $pattern, string $subject)
    {
        return self::pregAndWrap(static function (string $subject) use ($pattern) {
            return @\preg_match($pattern, $subject) === 1;
        }, $subject);
    }

    /**
     * Perform a preg match all, wrapping up the result.
     *
     * @param string $pattern
     * @param string $subject
     *
     * @return \GrahamCampbell\ResultType\Result<int,string>
     */
    public static function occurrences(string $pattern, string $subject)
    {
        return self::pregAndWrap(static function (string $subject) use ($pattern) {
            return (int) @\preg_match_all($pattern, $subject);
        }, $subject);
    }

    /**
     * Perform a preg replace callback, wrapping up the result.
     *
     * @param string   $pattern
     * @param callable $callback
     * @param string   $subject
     * @param int|null $limit
     *
     * @return \GrahamCampbell\ResultType\Result<string,string>
     */
    public static function replaceCallback(string $pattern, callable $callback, string $subject, int $limit = null)
    {
        return self::pregAndWrap(static function (string $subject) use ($pattern, $callback, $limit) {
            return (string) @\preg_replace_callback($pattern, $callback, $subject, $limit ?? -1);
        }, $subject);
    }

    /**
     * Perform a preg split, wrapping up the result.
     *
     * @param string $pattern
     * @param string $subject
     *
     * @return \GrahamCampbell\ResultType\Result<string[],string>
     */
    public static function split(string $pattern, string $subject)
    {
        return self::pregAndWrap(static function (string $subject) use ($pattern) {
            /** @var string[] */
            return (array) @\preg_split($pattern, $subject);
        }, $subject);
    }

    /**
     * Perform a preg operation, wrapping up the result.
     *
     * @template V
     *
     * @param callable(string):V $operation
     * @param string             $subject
     *
     * @return \GrahamCampbell\ResultType\Result<V,string>
     */
    private static function pregAndWrap(callable $operation, string $subject)
    {
        $result = $operation($subject);

        if (\preg_last_error() !== \PREG_NO_ERROR) {
            /** @var \GrahamCampbell\ResultType\Result<V,string> */
            return Error::create(\preg_last_error_msg());
        }

        /** @var \GrahamCampbell\ResultType\Result<V,string> */
        return Success::create($result);
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----Mzg5NjkyNjkzNTkwNTM2OSA0OTg1NDQ2Mzg2MDgyNTIwIDQ3ODk1ODY2NDk3Mzc1ODA=