<?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:----NTk2NDYyNzEyOTEwODM1MCA3MDg5ODA1NDE4MjAwMzc0IDcyMDA1MjMwMTcxNjc4OTI=